CN106007484A - Similar model test material for soft rock and preparation method of similar model test material - Google Patents
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- 239000000463 material Substances 0.000 title claims abstract description 35
- 239000011435 rock Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000004952 Polyamide Substances 0.000 claims abstract description 28
- 229920002647 polyamide Polymers 0.000 claims abstract description 28
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 22
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000004945 silicone rubber Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000008240 homogeneous mixture Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 2
- 230000001476 alcoholic effect Effects 0.000 claims 1
- 239000004593 Epoxy Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 6
- 238000011068 loading method Methods 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009472 formulation Methods 0.000 abstract 1
- 238000012669 compression test Methods 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/20—Polyamides
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00991—Uses not provided for elsewhere in C04B2111/00 for testing
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- Ceramic Engineering (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
本发明涉及一种软岩相似模型试验材料及其制备方法，软岩相似模型试验材料采用细河砂、重晶石粉、硅橡胶、环氧树脂‑聚酰胺和酒精为原料，通过不同的质量配比，获得具有软岩应力‑应变特性的相似模型材料；该材料强度较低，便于模型试验中的加载，小型加载设备便可；该材料的力学性能稳定。其原材料来源广，非常易于加工、养护方便，力学性能在室温下较稳定，可用于模拟软岩材的相似模型材料，有利于解决岩体工程中的实际问题。其制备方法简单、价格低廉、实用性强。
The invention relates to a soft rock similar model test material and a preparation method thereof. The soft rock similar model test material uses fine river sand, barite powder, silicon rubber, epoxy resin-polyamide and alcohol as raw materials, and is prepared through different quality formulations. Compared, a similar model material with soft rock stress-strain characteristics can be obtained; the material has low strength, which is convenient for loading in the model test, and a small loading device is enough; the mechanical properties of the material are stable. It has a wide source of raw materials, is very easy to process and maintain, and its mechanical properties are relatively stable at room temperature. It can be used to simulate similar model materials for soft rock materials, which is beneficial to solving practical problems in rock mass engineering. The preparation method is simple, the price is low, and the practicability is strong.
Description
技术领域 technical field
本发明涉及一种软岩相似模型试验的材料及其制备方法，尤其是一种适用于模拟软岩材料的相似模型试验材料。 The invention relates to a soft rock similar model test material and a preparation method thereof, in particular to a similar model test material suitable for simulating soft rock materials.
背景技术 Background technique
相似模拟试验是按一定的几何、物理关系，用模型代替原型进行测试研究，并将研究结果用于原型的试验方法。它是一种重要的科学研究手段，是在实验室内按相似原理制作与原型相似的模型，借助测试仪表观测模型内力参数及其分布规律，利用在模型上研究的结果，借以推断原型中可能发生的力学现象以及岩体压力分布的规律，从而解决岩体工程生产中的实际问题。这种研究方法具有直观、简便、经济、快速以及试验周期短等优点。而且能够根据需要，通过固定某些参数，改变另一些参数来研究实际工程中的应力随时间的变化规律，这些都是在现场条件下难以实现的。 The similar simulation test is a test method that uses a model instead of a prototype to conduct test research according to a certain geometric and physical relationship, and uses the research results for the prototype. It is an important scientific research method. It is to make a model similar to the prototype in the laboratory according to the similarity principle, observe the internal force parameters and their distribution laws of the model with the help of test instruments, and use the results of the research on the model to infer the possibility of the prototype. The mechanical phenomena that occur and the law of rock mass pressure distribution can solve practical problems in rock mass engineering production. This research method has the advantages of intuition, simplicity, economy, rapidity and short test period. Moreover, it is possible to study the variation of stress over time in actual engineering by fixing some parameters and changing other parameters according to needs, which are difficult to achieve under field conditions.
在岩土工程科学研究中，经常涉及到软岩材料的相关理论研究，而具有软岩应力-应变曲线关系的相似模型试验材料都是进行理论研究的重要试验材料，因此，研制出这种材料是必要的。而目前还没有关于研制具有软岩应力-应变曲线的相似模型试验材料的报道。 In the scientific research of geotechnical engineering, the relevant theoretical research of soft rock materials is often involved, and similar model test materials with soft rock stress-strain curve relationships are important test materials for theoretical research. Therefore, this material was developed necessary. However, there is no report on the development of similar model test materials with soft rock stress-strain curves.
发明内容 Contents of the invention
本发明所要解决的技术问题就是提供一种能够满足相似模型试验及岩土工程理论研究的软岩相似模型试验材料。本发明还提供一种软岩相似模型试验材料的制备方法。 The technical problem to be solved by the present invention is to provide a similar model test material for soft rock that can satisfy similar model tests and geotechnical engineering theoretical research. The invention also provides a method for preparing soft rock similar model test materials.
为了解决上述技术问题，本发明的一种软岩相似模型试验材料，采用细河砂、重晶石粉、硅橡胶、环氧树脂-聚酰胺和酒精为原料，经混合均匀制备而成，其质量配比如下： In order to solve the above-mentioned technical problems, a kind of soft rock similar model test material of the present invention is prepared by mixing fine river sand, barite powder, silicon rubber, epoxy resin-polyamide and alcohol as raw materials, and its quality The ratio is as follows:
细河砂100份； 100 parts of fine river sand;
重晶石粉100份； 100 parts of barite powder;
硅橡胶0-3份； 0-3 parts of silicone rubber;
环氧树脂-聚酰胺5-8份； 5-8 parts of epoxy resin-polyamide;
酒精10-15份。 10-15 parts of alcohol.
上述软岩相似模型试验材料的制备方法，步骤如下： The preparation method of above-mentioned soft rock similar model test material, the steps are as follows:
(1)按质量配比称取细河砂、重晶石粉、硅橡胶、环氧树脂-聚酰胺和酒精； (1) Take fine river sand, barite powder, silicone rubber, epoxy resin-polyamide and alcohol by mass proportioning;
(2)先将环氧树脂-聚酰胺溶解在酒精中，为加速溶解可用温水对其进行加热； (2) Epoxy resin-polyamide is dissolved in alcohol earlier, and it can be heated with warm water for accelerating dissolving;
(3)待环氧树脂-聚酰胺充分溶解在酒精中后，把酒精溶液加入细河砂和重晶石粉的均匀混合物中，继续搅拌至均匀，并且边搅拌边加入硅橡胶； (3) After the epoxy resin-polyamide is fully dissolved in alcohol, add the alcohol solution to the uniform mixture of fine river sand and barite powder, continue stirring until uniform, and add silicone rubber while stirring;
(4)将搅拌均匀的混合物倒入模具中并捣实，常温下干燥约20天，硬化即得软岩相似模型试验材料。 (4) Pour the evenly stirred mixture into a mold and compact it, dry it at room temperature for about 20 days, and harden to obtain a soft rock similar model test material.
有益效果：本发明采用环氧树脂-聚酰胺作为胶结材料， 细河砂和重晶石粉为填料，酒精作为溶剂，硅橡胶作为辅助调节剂，通过不同的质量配比，就可以获得具有软岩应力-应变特性的相似模型试验材料；该材料强度较低，便于模型试验中的加载，小型加载设备便可；该材料力学性能稳定。其原材料来源广，非常易于加工、养护方便，力学性能在室温下较稳定，可用于模拟软岩材料，有利于解决岩体工程生产中的实际问题。其制备方法简单、价格低廉、实用性强。 Beneficial effects: the present invention uses epoxy resin-polyamide as cementing material, fine river sand and barite powder as filler, alcohol as solvent, and silicone rubber as auxiliary regulator. Similar model test material with stress-strain characteristics; the material has low strength, which is convenient for loading in the model test, and small loading equipment is enough; the material has stable mechanical properties. It has a wide source of raw materials, is very easy to process and maintain, and its mechanical properties are relatively stable at room temperature. It can be used to simulate soft rock materials, which is conducive to solving practical problems in rock mass engineering production. The preparation method is simple, the price is low, and the practicability is strong.
附图说明 Description of drawings
图1是本发明实施例1的应力-应变曲线； Fig. 1 is the stress-strain curve of the embodiment of the present invention 1;
图2是本发明实施例2的应力-应变曲线； Fig. 2 is the stress-strain curve of embodiment 2 of the present invention;
图3是本发明实施例3的应力-应变曲线； Fig. 3 is the stress-strain curve of embodiment 3 of the present invention;
图4是本发明实施例4的应力-应变曲线。 Fig. 4 is a stress-strain curve of Example 4 of the present invention.
具体实施方式 detailed description
下面结合附图和实施例对本发明作进一步详细的说明： Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail:
实施例 1、按质量配比称量： Embodiment 1 , weighing by mass proportioning:
细河砂100份； 100 parts of fine river sand;
重晶石粉100份； 100 parts of barite powder;
硅橡胶0份； Silicone rubber 0 parts;
环氧树脂-聚酰胺5份； Epoxy resin-polyamide 5 parts;
酒精10份。 Alcohol 10 parts.
按质量配比称取细河砂、重晶石粉、环氧树脂-聚酰胺和酒精；先将环氧树脂-聚酰胺溶解在酒精中，并用温水对其进行加热以加速溶解；待环氧树脂-聚酰胺充分溶解在酒精中后，把酒精溶液加入到事先搅拌好的细河砂和重晶石粉均匀混合物中，继续搅拌至均匀；将搅拌均匀的混合物倒入模具中并捣实，常温下干燥约20天左右，拆模即可。 Weigh fine river sand, barite powder, epoxy resin-polyamide and alcohol according to the mass ratio; first dissolve epoxy resin-polyamide in alcohol, and heat it with warm water to accelerate dissolution; - After the polyamide is fully dissolved in alcohol, add the alcohol solution to the homogeneous mixture of fine river sand and barite powder that has been stirred in advance, and continue to stir until uniform; After drying for about 20 days, the mold can be removed.
为了试验测试方便，本实施例中使用的模具是圆柱形模具，制得的样品可直接进行单轴无侧限压缩测试，从而获得该实施例质量配比下所制材料的应力-应变曲线，如图1所示。 For the convenience of the test, the mold used in this embodiment is a cylindrical mold, and the prepared sample can be directly subjected to a uniaxial unconfined compression test, thereby obtaining the stress-strain curve of the material prepared under the mass ratio of this embodiment, As shown in Figure 1.
实施例 2、按质量配比称量： Embodiment 2 , weighing by mass proportioning:
细河砂100份； 100 parts of fine river sand;
重晶石粉100份； 100 parts of barite powder;
硅橡胶0份； Silicone rubber 0 parts;
环氧树脂-聚酰胺6份； Epoxy resin-polyamide 6 parts;
酒精13份。 Alcohol 13 parts.
按质量配比称取细河砂、重晶石粉、环氧树脂-聚酰胺和酒精；先将环氧树脂-聚酰胺溶解在酒精中，并用温水对其进行加热以加速溶解；待环氧树脂-聚酰胺充分溶解在酒精中后，把酒精溶液加入到事先搅拌好的细河砂和重晶石粉均匀混合物中，继续搅拌至均匀；将搅拌均匀的混合物倒入模具中并捣实，常温下干燥约20天左右，拆模即可。 Weigh fine river sand, barite powder, epoxy resin-polyamide and alcohol according to the mass ratio; first dissolve epoxy resin-polyamide in alcohol, and heat it with warm water to accelerate dissolution; - After the polyamide is fully dissolved in alcohol, add the alcohol solution to the homogeneous mixture of fine river sand and barite powder that has been stirred in advance, and continue to stir until uniform; After drying for about 20 days, the mold can be removed.
本实施例中同样使用圆柱形模具，制得的样品可直接进行单轴无侧限压缩测试，从而获得该实施例质量配比下所制材料的应力-应变曲线，如图2所示。 In this embodiment, a cylindrical mold is also used, and the prepared sample can be directly subjected to a uniaxial unconfined compression test, so as to obtain the stress-strain curve of the material prepared under the mass ratio of this embodiment, as shown in FIG. 2 .
实施例 3、按质量配比称量： Embodiment 3 , weighing by mass proportioning:
细河砂100份； 100 parts of fine river sand;
重晶石粉100份； 100 parts of barite powder;
硅橡胶0份； Silicone rubber 0 parts;
环氧树脂-聚酰胺7份； Epoxy resin-polyamide 7 parts;
酒精15份。 Alcohol 15 parts.
按质量配比称取细河砂、重晶石粉、环氧树脂-聚酰胺和酒精；先将环氧树脂-聚酰胺溶解在酒精中，并用温水对其进行加热以加速溶解；待环氧树脂-聚酰胺充分溶解在酒精中后，把酒精溶液加入到事先搅拌好的细河砂和重晶石粉均匀混合物中，继续搅拌至均匀；将搅拌均匀的混合物倒入模具中并捣实，常温下干燥约20天左右，拆模即可。 Weigh fine river sand, barite powder, epoxy resin-polyamide and alcohol according to the mass ratio; first dissolve epoxy resin-polyamide in alcohol, and heat it with warm water to accelerate dissolution; - After the polyamide is fully dissolved in alcohol, add the alcohol solution to the homogeneous mixture of fine river sand and barite powder that has been stirred in advance, and continue to stir until uniform; After drying for about 20 days, the mold can be removed.
本实施例中同样使用圆柱形模具，制得的样品可直接进行单轴无侧限压缩测试，从而获得该实施例质量配比下所制材料的应力-应变曲线，如图3所示。 In this embodiment, a cylindrical mold is also used, and the prepared sample can be directly subjected to a uniaxial unconfined compression test, so as to obtain the stress-strain curve of the material prepared under the mass ratio of this embodiment, as shown in FIG. 3 .
实施例 4 、按质量配比称量： Embodiment 4 , weighing by mass proportioning:
细河砂100份； 100 parts of fine river sand;
重晶石粉100份； 100 parts of barite powder;
硅橡胶1份； 1 part silicone rubber;
环氧树脂-聚酰胺5份； Epoxy resin-polyamide 5 parts;
酒精10份。 Alcohol 10 parts.
按质量配比称取细河砂、重晶石粉、硅橡胶、环氧树脂-聚酰胺和酒精；先将环氧树脂-聚酰胺溶解在酒精中，并用温水对其进行加热以加速溶解；待环氧树脂-聚酰胺充分溶解在酒精中后，把酒精溶液加入到事先搅拌好的细河砂和重晶石粉均匀混合物中，继续搅拌至均匀，并且边搅拌边缓慢加入硅橡胶；将搅拌均匀的混合物倒入模具中并捣实，常温下干燥约20天左右，拆模即可。 Weigh fine river sand, barite powder, silicone rubber, epoxy resin-polyamide and alcohol according to the mass ratio; first dissolve the epoxy resin-polyamide in alcohol, and heat it with warm water to accelerate the dissolution; After the epoxy resin-polyamide is fully dissolved in alcohol, add the alcohol solution to the homogeneous mixture of fine river sand and barite powder that has been stirred in advance, continue to stir until uniform, and slowly add silicone rubber while stirring; The mixture is poured into the mold and compacted, and dried at room temperature for about 20 days, and the mold can be removed.
本实施例中同样使用圆柱形模具，制得的样品可直接进行单轴无侧限压缩测试，从而获得该实施例质量配比下所制材料的应力-应变曲线，如图4所示。 In this embodiment, a cylindrical mold is also used, and the prepared sample can be directly subjected to a uniaxial unconfined compression test, so as to obtain the stress-strain curve of the material prepared under the mass ratio of this embodiment, as shown in FIG. 4 .
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| CN108680408B (en) * | 2018-04-28 | 2019-12-10 | 中国地质大学（武汉） | Pile rock similar material and preparation method of soft rock rock-socketed pile for bearing capacity model test |
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