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CN119900569B - Precise control method for slitting angle and length considering unevenness of tunnel face - Google Patents

Precise control method for slitting angle and length considering unevenness of tunnel face

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Publication number
CN119900569B
CN119900569B CN202510397571.1A CN202510397571A CN119900569B CN 119900569 B CN119900569 B CN 119900569B CN 202510397571 A CN202510397571 A CN 202510397571A CN 119900569 B CN119900569 B CN 119900569B
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China
Prior art keywords
actual
tunnel
expected
tunnel face
hole
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CN202510397571.1A
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Chinese (zh)
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CN119900569A (en
Inventor
贾卫东
李庆民
王晓勇
刘同江
刘忠磊
许卫武
刘振国
于本泉
夏万云
贾宝宁
吴伟煜
孔德桃
梁龙
李中辉
何志伟
魏元津
张文锡
周悦龙
毕元甲
杜广泽
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Chian Railway 14th Bureau Group Corp Tunnel Engineering Co ltd
China Railway 14th Bureau Group Co Ltd
Fourth Engineering Co Ltd of China Railway 14th Bureau Co Ltd
Original Assignee
Chian Railway 14th Bureau Group Corp Tunnel Engineering Co ltd
China Railway 14th Bureau Group Co Ltd
Fourth Engineering Co Ltd of China Railway 14th Bureau Co Ltd
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Application filed by Chian Railway 14th Bureau Group Corp Tunnel Engineering Co ltd, China Railway 14th Bureau Group Co Ltd, Fourth Engineering Co Ltd of China Railway 14th Bureau Co Ltd filed Critical Chian Railway 14th Bureau Group Corp Tunnel Engineering Co ltd
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Publication of CN119900569A publication Critical patent/CN119900569A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
    • E21D9/004—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines using light beams for direction or position control
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention relates to the technical field of cut hole measurement, in particular to a precise cut angle and length control method considering the unevenness of a tunnel face, which comprises the steps of determining tunneling parameters of an expected cut hole and an expected tunnel face horizontal line; the angle between the actual cut hole and the actual tunnel face, the length of the actual cut hole from the central line in the tunnel excavation direction and the actual cut length are obtained, and the data are processed and analyzed through a data processing module, so that precise control of the cut angle and the length considering the unevenness of the tunnel face is realized. The invention can reduce the cost and increase the efficiency of the tunnel construction by the drilling and blasting method, has remarkable economic and social benefits and has stronger popularization and application values.

Description

Precise control method for slitting angle and length considering unevenness of tunnel face
Technical Field
The invention relates to the technical field of measurement of cut holes, in particular to a precise control method for the cut angle and length considering the unevenness of a tunnel face.
Background
In tunneling engineering, cut blasting is an important link for ensuring the quality and progress of tunnel excavation, and the angle and depth of cut drilling directly affect the subsequent blasting effect.
However, in actual construction, the tunnel face may not be perpendicular to the tunnel side line, and the tunnel face may be inclined, that is, uneven due to the influence of the last blasting. At this time, the hole bottom depth of the two-side cut hole is different and the angle is different by the originally planned cut drilling scheme, so that the blasting effect and the excavation quality are affected. At present, most of existing cut blasting methods are based on the fact that a tunnel face perpendicular to a tunnel side line is considered to be a relative plane, the unevenness of the tunnel face is not considered in combination with practical consideration, adaptability and control precision to the unevenness tunnel face are limited, and further blasting effects are affected.
Disclosure of Invention
The invention provides a precise control method for the slitting angle and length taking the unevenness of a tunnel face into consideration, which aims at the condition that the tunnel face is not perpendicular to a tunnel side line and precisely controls the slitting angle and length.
The technical scheme of the invention is as follows:
the precise control method for the angle and the length of the undercut considering the unevenness of the face specifically comprises the following steps:
s1, carrying out parameterization design on a cut area of an actual tunnel face based on tunnel geological survey data and geological forecast information of the actual tunnel face, and determining tunneling parameters of an expected cut hole and an expected tunnel face horizontal line LY;
The expected cut is a wedge cut and comprises an expected first cut and an expected second cut which are positioned on the same plane, and the two cut holes are positioned on the same horizontal plane;
The tunneling parameters of the horizontal line LY of the expected cutting hole and the expected face comprise the expected cutting length L TC, and the included angle between the axis of the expected cutting hole and the horizontal line LY of the expected face is theta;
s2, at a preset bracket distance L 3 right in front of an actual tunnel face, installing and leveling a bracket, wherein the bracket is positioned on a central line LK in the tunnel excavation direction, installing a laser range finder and a data processing module on the bracket, and enabling the top end height to be flush with the axis of an expected cut hole;
S3, obtaining intersection points M and N of an actual tunnel face and side lines LB of the tunnels on the two sides through a laser range finder, carrying out dotting positioning on the distances L 1 and L 2 from the laser range finder, obtaining horizontal distance L 4 from the laser range finder to the side lines LB of the tunnels on the two sides, and carrying out dotting positioning on horizontal intersection points O 1 and O 2 from the laser range finder to the side lines LB of the tunnels on the two sides;
s4, extending the axis of the expected cut hole and the intersection point of the actual tunnel face to obtain the position of the actual cut hole;
S5, inputting tunneling parameters of the horizontal line LY of the expected cut hole and the expected tunnel face and the position of the actual cut hole into a data processing module, and obtaining the angle between the actual cut hole and the actual tunnel face, the length of the actual cut hole from the central line LK in the tunnel excavation direction and the actual cut hole cut length;
the actual cut is a wedge cut, comprising an actual first cut and an actual second cut, which are located on the same plane, the two cut being located on the same horizontal plane.
In S5, the angle between the actual undercut hole and the actual tunnel face is obtained by adopting the following formula:
x1=θ-γ=θ-arctan（L5/2L4),
x2=θ+γ=θ+arctan（L5/2L4),
Wherein x 1 and x 2 are respectively the angles of the axes of the actual first cut hole and the actual second cut hole and the actual tunnel face, gamma is the angle of angle MNJ after the vertical line NJ is led from N to the tunnel side line LB at the other side, and the distance between M and N in the tunneling direction is L 5.
In S5, the intersection point of the central line LK in the tunnel excavation direction and the MN is G, the lengths of the actual cut holes from the central line LK in the tunnel excavation direction are the lengths of line segments formed by the actual first cut hole opening, the actual second cut hole opening and the G respectively, and the lengths are obtained by adopting the following formula:
L11=[sin（90°-θ）/sin（θ-arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7],
L12=[sin（90°-θ）/sin（θ+arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7], Wherein L 11 and L 12 are lengths of the position of the actual first cut hole and the actual second cut hole from the central line LK in the tunnel excavation direction respectively, the angles of the ON line and the OM line and the central line LK in the tunnel excavation direction are alpha and beta by taking the position of the laser range finder as an O point, the distance of the bottom of the expected cut hole is L 6, the intersection point of the MN and the central line LK in the tunnel excavation direction is G, and the length of the OG is L 7.
In S5, the actual cut length of the cut is obtained by adopting the following formula:
LTC1=[sin（90°+arctan（L2cosβ-L1cosα）/2L4）/sin（θ-arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7]-（L6/2）/cosθ,
LTC2=[sin（90°-arctan（L2cosβ-L1cosα）/2L4）/sin（θ+arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7]-（L6/2）/cosθ,
Wherein L TC1 and L TC2 are the cut lengths of the actual first cut hole and the actual second cut hole, respectively.
The specific deduction steps of the length of L 7 are as follows:
L7=GU=OG-OU,
Where OG is the preset stand distance L 3 from the laser rangefinder to the face, and OU is the distance from the laser rangefinder to the desired face horizontal line LY.
Leveling bubbles are arranged in the bracket for leveling.
The bracket is provided with angle scales.
The data processing module comprises a processor and a memory, wherein the processor is electrically connected with the memory, and the memory stores a computer program.
The laser range finder is electrically connected with the processor.
The processor executes the computer program stored in the memory.
Through the technical scheme, the invention has the following beneficial effects:
1. the invention can make the bottom of the cut hole at the same depth and the same angle, avoid the condition of inclination of the tunnel face caused by different tunneling sizes of the tunnel face after blasting, and improve the blasting effect.
2. The operation is simple and quick, the number of measuring points to be positioned is small, and the construction operation efficiency is improved.
3. The applicability is strong, and the distance between the laser range finder and the face can be selected at will and is not influenced by the inclination degree of the face.
4. The method can effectively reduce the reworking rate, reduce the material waste and reworking cost in the construction process, and reduce the construction period.
Drawings
In the drawings:
FIG. 1 is a schematic diagram of a computing point placement of the present invention;
FIG. 2 is a schematic diagram of the calculated length of the present invention;
FIG. 3 is a schematic diagram showing the front-to-back comparison of the cut holes of the present invention;
FIG. 4 is a flow chart of data acquisition and processing in accordance with the present invention;
fig. 5 is a general flow chart of the present invention.
The components represented by the reference numerals in the figures are:
1. A laser range finder; 2, a bracket, 21, a level bubble, 22, an angle scale, 3, a data processing module, 31, a processor, 32, a memory, 4, a tunnel side line LB, 5, a tunnel excavation direction central line LK, 6, an expected tunnel face horizontal line LY, 7, an actual tunnel face horizontal line LS, 8, an actual tunnel face, 9, an expected cut hole and 10, an actual cut hole.
Detailed Description
Example 1
Referring to fig. 5, the precise control method for the angle and the length of the undercut considering the unevenness of the face of the present invention comprises the following specific steps:
S1, carrying out parameterization design on a cut area of an actual tunnel face 8 based on tunnel geological survey data and geological forecast information of the actual tunnel face 8, and determining tunneling parameters of an expected cut 9 and an expected tunnel face horizontal line LY 6.
The intended cut 9 is a wedge cut, comprising an intended first cut and an intended second cut lying in the same plane, both cut being in the same horizontal plane.
The tunneling parameters of the intended cut hole 9 and the intended tunnel face horizontal line LY6 include the intended cut length L TC, and the angle between the axis of the intended cut hole 9 and the intended tunnel face horizontal line LY6 is θ.
Through the parameterized design, the position, length and angle of the intended cut hole 9 can be precisely controlled, thereby improving the accuracy and efficiency of the cut.
The method is suitable for complex geological conditions, combines geological survey data of tunnels and geological forecast information of the actual tunnel face 8, can carry out adaptive design aiming at different geological conditions, and ensures safety and effectiveness of slitting operation.
Referring to fig. 4, the leveling air bubbles 21 are provided in the bracket 2 for leveling. The levelling air bubble 21 is used to ensure that the holder 2 is in a level condition, which is the basis for accurate control of the slitting operation. The subsequent measurement and control of the slitting angle and length can only be accurate if the support 2 is stable and horizontal.
The bracket 2 is provided with an angle scale 22. The angle scale 22 allows an operator to directly read the angle between the dotting and the datum line, thereby ensuring accurate control of the slitting angle. This is critical to achieving the desired slitting effect and control of the tunneling direction.
The data processing module 3 comprises a processor 31 and a memory 32, the processor 31 being electrically connected to the memory 32, the memory 32 having stored therein a computer program. The laser rangefinder 1 is electrically connected to the processor 31. The data processing module 3 is the core of the solution, responsible for processing and analysing the data coming from the laser rangefinder 1 and executing the computer program stored in the memory 32. The configuration can efficiently process data and quickly respond to operation instructions, thereby realizing real-time and accurate control of the slitting angle and the slitting length.
The processor 31 executes a computer program stored in said memory 32.
The stored computer program contains the algorithms and logic necessary to achieve precise control of the slitting angle and length. These programs can direct the processor to perform the necessary calculations and control operations, ensuring the accuracy and efficiency of the slitting operation. The laser rangefinder 1 is used to measure the actual length and position information of the cut hole in real time and to transmit these data to the processor 31. The processor 31 adjusts the slitting operation on the basis of these data, ensuring a precise control of the slitting length. This real-time feedback mechanism improves the accuracy and reliability of the slitting operation.
S2, at a preset bracket distance L 3 right in front of the actual tunnel face 8, installing the bracket 2 and leveling, wherein the bracket 2 is positioned on a central line LK5 in the tunnel excavation direction, installing the laser range finder 1 and the data processing module 3 on the bracket 2, and enabling the top end height to be flush with the axis of the expected cut hole 9.
Ensure that the position of the bracket 2 is matched with the actual requirement of the slitting operation, and provide accurate reference for the subsequent slitting angle and length control. The leveling operation of the support 2 ensures its stability during operation, which is crucial for the stable operation of the laser rangefinder 1 and the data processing module 3, helping to reduce measurement errors and control deviations. The data processing module 3 is directly connected with the laser range finder 1 and can receive and process the measured data in real time, so that the slitting operation parameters can be quickly adjusted, and the operation efficiency and accuracy are improved.
S3, obtaining intersection points M and N of the actual tunnel face 8 and the tunnel side lines LB4 at the two sides through the laser range finders 1, performing dotting positioning on the distances L 1 and L 2 from the laser range finders 1, obtaining horizontal distance L 4 from the laser range finders to the tunnel side lines LB4 at the two sides, and performing dotting positioning on horizontal intersection points O 1 and O 2 from the laser range finders to the tunnel side lines LB4 at the two sides.
The laser rangefinder 1 is able to measure distances with high accuracy, so the positioning of the intersection points M and N is very accurate. This is crucial for the subsequent determination of the position and angle of the undercut and helps to ensure that the undercut operation is performed in the correct direction. Wherein line segment O 1O2 is perpendicular to tunnel edge LB 4. The dotting positioning enables the intersection points M and N to be marked clearly on the tunnel site, so that operators can understand the position and angle requirements of the cut holes intuitively. The positioning points of O 1 and O 2 can be used as reference points for subsequent measurement and verification, so that the slitting operation is ensured to meet the design requirements.
And S4, extending the intersection point of the axis of the expected cut hole 9 and the actual tunnel face 8 to obtain the position of the actual cut hole 10.
In order to make the depth and angle of the cut hole uniform even when the actual face 8 is inclined, the relative position of the actual cut hole 10 needs to be unchanged, the point of the side to be elongated is the hole position of the side cut hole, and only the side needs to be elongated and the other side needs to be shortened.
S5, the tunneling parameters of the expected cut hole 9 and the horizontal line LY6 of the expected tunnel face and the position of the actual cut hole 10 are input into the data processing module 3, and the angles of the actual cut hole 10 and the actual tunnel face 8, the length of the actual cut hole 10 from the central line LK5 in the tunnel excavation direction and the cut length of the actual cut hole 10 are obtained.
Referring to fig. 3, the specific reasoning process of the data processing module 3 includes:
An intersection point of a horizontal line and a tunnel side line LB4 on the other side at the N position is J, NJ and OM are intersected at a point H and a central line LK5 in the tunnel excavation direction is intersected at a point R, an angle MNJ angle is gamma, an angle NMH angle is delta, and the MG length L 5=MO2-NO1=L2cosβ-L1 cos alpha is set;
From tan γ=mj/nj=l 5/2L4, γ=arctan (L 5/2L4) can be derived;
The intersection point of the expected tunnel face horizontal line LY6 and the tunnel side line LB4 is C and D, the expected tunnel face horizontal line LY6 is vertical to the tunnel side line LB4, the expected cut hole 9 is EP 1 and FQ 1, the expected length is L TC, the angle is θ, and the symmetrical state is realized, wherein the distance between the hole bottoms E and F is L 6, the center line LK5 in the excavation direction of the EF intersecting tunnel is at the point T, and the line segments EP 1 and FQ 1 are set to extend and intersect at the point W;
Because the current actual tunnel face horizontal line LS7 is not perpendicular to the tunnel side line LB4 and is inclined, the actual cut holes 10 are set to be EP 2 and FQ 2, the lengths of which are L TC1,LTC2 respectively, wherein P 2,Q2 is the intersection point of extension lines of EP 1 and FQ 1 with NM respectively, the intersection point of the extension lines with NM passes through P 2 and the perpendicular line of the tunnel side line LB4 to form a point S, the angle EP 2 M is the angle EP 2S-∠MP2 S=θ - γ, and the angle FQ 2 N is the angle=θ+γ;
Referring to fig. 1-3, a perpendicular to a line LK5 in the tunnel excavation direction is drawn through P 1 to intersect at a point U, wherein the length L7 of a line GU is a known value and is determined by the position of a horizontal line LY6 of an expected tunnel face;
In DeltaP 2 WG, the angle P 2 WG is 90 degrees to theta, the angle WGP 2 is 90 degrees+gamma, the length of line segment P 2 G is L 11, the length of line segment EP 2 is L TC1, and the angle is obtained by sine theorem:
sin(θ-γ)/(L10-L7）=sin（90°-θ）/L11=sin（90°+γ）/（LTC1+L9),
This can be achieved by:
L11=[sin（90°-θ）/sin（θ-γ）]·（L10-L7),
LTC1=[sin（90°+γ）/sin（θ-γ）]·（L10-L7）-L9;
similarly, in Δq 2 WG, the length of line segment Q 2 G is L 11, and the sine theorem can be used to obtain:
sin(θ+γ)/(L10-L7）=sin（90°-θ）/L12=sin（90°-γ）/（LTC2+L9),
Thus, L 12=[sin（90°-θ）/sin（θ+γ）]·（L10-L7,
LTC2=[sin（90°-γ）/sin（θ+γ）]·（L10-L7）-L9;
The actual cut 10 is a wedge cut, comprising an actual first cut and an actual second cut lying in the same plane, both cut being in the same horizontal plane.
The angle of the actual cut hole 10 with the actual face 8 is obtained by the following formula:
x1=θ-γ=θ-arctan（L5/2L4),
x2=θ+γ=θ+arctan（L5/2L4),
Wherein x 1 and x 2 are respectively the angles of the axes of the actual first cut hole and the actual second cut hole and the actual tunnel face 8, gamma is the angle of the angle MNJ after the vertical line NJ is led from N to the tunnel side line LB4 at the other side, and the distance between M and N in the tunneling direction is L 5.
The intersection point of the central line LK5 in the tunnel excavation direction and the MN is G, the length of the actual cut hole 10 from the central line LK5 in the tunnel excavation direction is the length of a line segment formed by the actual first cut hole opening, the actual second cut hole opening and the G, and the length is obtained by adopting the following formula:
L11=[sin（90°-θ）/sin（θ-arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7],
L12=[sin（90°-θ）/sin（θ+arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7],
wherein L 11 and L 12 are lengths of the position of the opening of the actual first cut hole and the position of the opening of the actual second cut hole, which are away from the central line LK5 in the tunnel excavation direction, the angles of the ON line and the OM line and the central line LK5 in the tunnel excavation direction are alpha and beta, the distance between the bottom of the hole of the expected cut hole 9 is L 6, the intersection point of the MN and the central line LK5 in the tunnel excavation direction is G, and the length of OG is L 7.
The specific deduction steps of the length of L 7 are as follows:
L7=GU=OG-OU,
where OG is the preset standoff distance L 3 from the laser rangefinder 1 to the face, and OU is the distance from the laser rangefinder 1 to the desired face level LY 6.
The actual cut length of the cut hole 10 is obtained using the following formula:
LTC1=[sin（90°+arctan（L2cosβ-L1cosα）/2L4）/sin（θ-arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7]-（L6/2）/cosθ,
LTC2=[sin（90°-arctan（L2cosβ-L1cosα）/2L4）/sin（θ+arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7]-（L6/2）/cosθ,
Wherein L TC1 and L TC2 are the cut lengths of the actual first cut hole and the actual second cut hole, respectively.
The positions of the bottoms of the actual cut holes 10 are at the same depth, the included angle between the axis of the actual cut holes 10 and the expected tunnel face is the same, the condition that the actual tunnel face 8 is inclined due to different tunneling sizes of the actual tunnel face 8 after blasting is avoided, and the blasting effect is improved.

Claims (8)

1.一种考虑掌子面不平整度的掏槽角度与长度精准控制方法，其特征在于，具体包括以下步骤：1. A method for accurately controlling the cutting angle and length taking into account the unevenness of the tunnel face, characterized in that it specifically comprises the following steps: S1、基于隧道地质勘察数据和实际掌子面（8）的地质预报信息，对实际掌子面（8）的掏槽区域进行参数化设计，确定预期掏槽孔（9）和预期掌子面水平线LY（6）的掘进参数；S1, based on the tunnel geological survey data and the geological prediction information of the actual tunnel face (8), a parametric design is performed on the groove area of the actual tunnel face (8), and the excavation parameters of the expected groove hole (9) and the expected tunnel face horizontal line LY (6) are determined; 所述预期掏槽孔（9）为楔形掏槽，包括位于同一平面的预期第一掏槽孔和预期第二掏槽孔，两个掏槽孔处于同一水平面；The expected groove hole (9) is a wedge-shaped groove, comprising an expected first groove hole and an expected second groove hole located in the same plane, and the two groove holes are located in the same horizontal plane; 预期掏槽孔（9）和预期掌子面水平线LY（6）的掘进参数包括预期掏槽长度LTC，预期掏槽孔（9）轴线与预期掌子面水平线LY（6）夹角角度为θ；The excavation parameters of the expected slot hole (9) and the expected tunnel face horizontal line LY (6) include the expected slot length L TC , the angle θ between the axis of the expected slot hole (9) and the expected tunnel face horizontal line LY (6); S2、在实际掌子面（8）正前方预设支架距离L3处，安装支架（2）并调平，且支架（2）位于隧道开挖方向中线LK（5）上，将激光测距仪（1）与数据处理模块（3）安装在支架（2）上，顶端高度与预期掏槽孔（9）轴线平齐；S2. Install the support (2) and level it at a preset support distance L3 directly in front of the actual tunnel face (8), and position the support (2) on the center line LK (5) of the tunnel excavation direction. Install the laser rangefinder (1) and the data processing module (3) on the support (2), and make the top height flush with the axis of the expected slot hole (9); S3、通过激光测距仪（1），获得实际掌子面（8）与两侧隧道边线LB（4）的交点M和N，到激光测距仪（1）的距离L1和L2，对M和N进行打点定位；获得激光测距仪到两侧隧道边线LB（4）的水平距离L4，并对激光测距仪到两侧隧道边线LB（4）的水平交点O1和O2进行打点定位；S3, using the laser rangefinder (1), obtain the intersection points M and N between the actual tunnel face (8) and the tunnel sidelines LB (4) on both sides, and the distances L1 and L2 from the laser rangefinder (1), and perform dot positioning on M and N; obtain the horizontal distance L4 from the laser rangefinder to the tunnel sidelines LB (4) on both sides, and perform dot positioning on the horizontal intersection points O1 and O2 from the laser rangefinder to the tunnel sidelines LB (4) on both sides; S4、延长预期掏槽孔（9）的轴线，与实际掌子面（8）的交点，获得实际掏槽孔（10）的位置；S4, extending the axis of the expected slot hole (9) to the intersection point with the actual tunnel face (8) to obtain the position of the actual slot hole (10); S5、将预期掏槽孔（9）和预期掌子面水平线LY（6）的掘进参数，以及实际掏槽孔（10）的位置，输入数据处理模块（3）；获得实际掏槽孔（10）与实际掌子面（8）的角度，S5, inputting the excavation parameters of the expected slot hole (9) and the expected tunnel face horizontal line LY (6), as well as the position of the actual slot hole (10), into the data processing module (3); obtaining the angle between the actual slot hole (10) and the actual tunnel face (8), x1=θ-γ=θ-arctan（L5/2L4），x 1 =θ-γ=θ-arctan (L 5 /2L 4 ), x2=θ+γ=θ+arctan（L5/2L4），x 2 =θ+γ=θ+arctan(L 5 /2L 4 ), 其中，x1和x2分别为实际第一掏槽孔和实际第二掏槽孔轴线与实际掌子面（8）的夹角角度；γ为自N向另一侧隧道边线LB（4）引垂线NJ后，∠MNJ的角度；M与N在掘进方向上的距离为L5；Wherein, x1 and x2 are the angles between the axes of the actual first and second slot holes and the actual tunnel face (8), respectively; γ is the angle ∠MNJ after drawing the vertical line NJ from N to the other side tunnel edge line LB (4); the distance between M and N in the excavation direction is L5 ; 实际掏槽孔（10）距离隧道开挖方向中线LK（5）的长度，以及实际掏槽孔（10）掏槽长度，The actual length of the slot hole (10) from the center line LK (5) of the tunnel excavation direction, and the actual slot length of the slot hole (10), LTC1=[sin（90°+arctan（L2cosβ-L1cosα）/2L4）/sin（θ-arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7]-（L6/2）/cosθ，L TC1= [sin(90°+arctan(L 2 cosβ-L 1 cosα)/2L 4 )/sin(θ-arctan(L 2 cosβ-L 1 cosα)/2L 4 )]·[L TC sinθ+(L 6 /2)tanθ-L 7 ]-(L 6 /2)/cosθ, LTC2=[sin（90°-arctan（L2cosβ-L1cosα）/2L4）/sin（θ+arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7]-（L6/2）/cosθ，L TC2= [sin(90°-arctan(L 2 cosβ-L 1 cosα)/2L 4 )/sin(θ+arctan(L 2 cosβ-L 1 cosα)/2L 4 )]·[L TC sinθ+(L 6 /2)tanθ-L 7 ]-(L 6 /2)/cosθ, 其中，LTC1和LTC2分别为实际第一掏槽孔和实际第二掏槽孔的掏槽长度；Wherein, L TC1 and L TC2 are the actual cutting lengths of the first cutting hole and the actual second cutting hole respectively; 所述实际掏槽孔（10）为楔形掏槽，包括位于同一平面的实际第一掏槽孔和实际第二掏槽孔，两个掏槽孔处于同一水平面。The actual groove hole (10) is a wedge-shaped groove, comprising an actual first groove hole and an actual second groove hole located in the same plane, and the two groove holes are located in the same horizontal plane. 2.根据权利要求1所述的控制方法，其特征在于，S5中，隧道开挖方向中线LK（5）与MN的交点为G，实际掏槽孔（10）距离隧道开挖方向中线LK（5）的长度分别为实际第一掏槽孔孔口和实际第二掏槽孔孔口与G形成的线段长度，采用如下公式获得：2. The control method according to claim 1, characterized in that, in S5, the intersection point of the tunnel excavation direction center line LK (5) and MN is G, and the length of the actual slot hole (10) from the tunnel excavation direction center line LK (5) is the length of the line segment formed by the actual first slot hole opening and the actual second slot hole opening and G, respectively, which is obtained by the following formula: L11=[sin（90°-θ）/sin（θ-arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7]，L 11 =[sin（90°-θ）/sin（θ-arctan（L 2 cosβ-L 1 cosα）/2L 4 )]·[L TC sinθ+（L 6 /2）tanθ-L 7 ], L12=[sin（90°-θ）/sin（θ+arctan（L2cosβ-L1cosα）/2L4）]·[LTC sinθ+（L6/2）tanθ-L7]，L 12 =[sin（90°-θ）/sin（θ+arctan（L 2 cosβ-L 1 cosα）/2L 4 )]·[L TC sinθ+（L 6 /2）tanθ-L 7 ], 其中，L11和L12分别为实际第一掏槽孔和实际第二掏槽孔开孔处距离隧道开挖方向中线LK（5）的长度；以激光测距仪（1）所在位置为O点，ON和OM线与隧道开挖方向中线LK（5）的角度为α与β；预期掏槽孔（9）孔眼底部距离为L6；MN与隧道开挖方向中线LK（5）的交点为G，OG的长度为L7。Wherein, L11 and L12 are the lengths of the openings of the actual first slot hole and the actual second slot hole from the center line LK (5) of the tunnel excavation direction, respectively; the position of the laser rangefinder (1) is taken as point O, the angles between the ON and OM lines and the center line LK (5) of the tunnel excavation direction are α and β; the distance from the bottom of the expected slot hole (9) is L6 ; the intersection point of MN and the center line LK (5) of the tunnel excavation direction is G, and the length of OG is L7 . 3.根据权利要求2所述的控制方法，其特征在于，L7长度的具体推导步骤为：3. The control method according to claim 2, characterized in that the specific derivation steps of the L7 length are: L7=GU=OG-OU，L 7 =GU=OG-OU, 其中OG为激光测距仪（1）到掌子面的预设支架距离L3，OU为激光测距仪（1）到预期掌子面水平线LY（6）的距离。Wherein OG is the preset support distance L 3 from the laser rangefinder (1) to the tunnel face, and OU is the distance from the laser rangefinder (1) to the expected tunnel face horizontal line LY (6). 4.根据权利要求1所述的控制方法，其特征在于，所述支架（2）中设置有水准气泡（21）进行调平。4. The control method according to claim 1, characterized in that a level bubble (21) is provided in the bracket (2) for leveling. 5.根据权利要求1所述的控制方法，其特征在于，所述支架（2）上设有角度刻度（22）。5. The control method according to claim 1, characterized in that an angle scale (22) is provided on the bracket (2). 6.根据权利要求1所述的控制方法，其特征在于，所述数据处理模块（3）包括处理器（31）和存储器（32），处理器（31）与存储器（32）电连接，存储器（32）中存储有计算机程序。6. The control method according to claim 1, characterized in that the data processing module (3) comprises a processor (31) and a memory (32), the processor (31) is electrically connected to the memory (32), and a computer program is stored in the memory (32). 7.根据权利要求1所述的控制方法，其特征在于，所述激光测距仪（1）与处理器（31）电连接。7. The control method according to claim 1, characterized in that the laser rangefinder (1) is electrically connected to a processor (31). 8.根据权利要求6所述的控制方法，其特征在于，所述处理器（31）执行所述存储器（32）存储的计算机程序。8. The control method according to claim 6, characterized in that the processor (31) executes a computer program stored in the memory (32).
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