SU1280085A1

SU1280085A1 - Earth structure on weak soils

Info

Publication number: SU1280085A1
Application number: SU853944819A
Authority: SU
Inventors: Юрий Нестерович Высоцкий; Борис Васильевич Белоусов; Владимир Давыдович Казарновский
Original assignee: Омский Филиал Государственного Всесоюзного Дорожного Научно-Исследовательского Института
Priority date: 1985-07-12
Filing date: 1985-07-12
Publication date: 1986-12-30

Abstract

Изобретение относитс к области строительства земл ных сооружений на слабых грунтах и обеспечивает повьшение устойчивости сооружени и сокращение трудозатрат на его возведение. Земл ное сооружение включает насыпь 2 из минерального грунта и размещенную в ее основании по всей ширине обойму 3 из гибкого материала, в краевых част х которой закреплены неподвижно в местах их размещени продольные упоры 4. Обойма может быть снабжена дополнительным продольным упором 5, размещенньм в ее средней части, а в слабом грунте основани между упорами могут быть выполнены продольные прорези 6. Обойма может быть выполнена из гибкого материала , например из полотнищ нетканого синтетического материала, а расi сто ние от верха упоров до поверхности слабого грунта 1, располо (Л жершого под обоймой между смежными продольными упорами, не превьшает величины С, определ емой по формуле С 0,5 А The invention relates to the field of construction of earthworks on weak soils and provides for an increase in the stability of the structure and reduction of labor costs for its construction. The land structure includes an embankment 2 of mineral soil and a ferrule 3 of flexible material placed at its base along the entire width, in the marginal parts of which the longitudinal stops 4 are fixed at the places of their placement 4. The ferrule can be equipped with an additional longitudinal stop 5 placed in its longitudinal slots 6 can be made between the stops in weak soil of the base between the lugs. The clip can be made of flexible material, for example, from panels of non-woven synthetic material, and the distance from the top Hur to the surface of the soft soil 1 location with (A zhershogo a cage between adjacent longitudinal abutments, not prevshaet value C defined by the formula 0.5 A C

Description

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Изобретение относитс к строительству и может быть использовано при сооружении автомобильных и железных дорог на слабом основании.The invention relates to the construction and can be used in the construction of roads and railways on a weak basis.

Целью изобретени вл етс повышение устойчивости земл ного полотна и сокращение трудозатрат.The aim of the invention is to increase the stability of the earth bed and reduce labor costs.

На чертеже схематично изображено земл ное полотно (вариант выполнени , поперечньш разрез.The drawing shows schematically an earth web (embodiment, transverse section.

Земл ное сооружение на слабых грунтах 1 включает насьшь 2 из минерального грунта и размещенную в ее основании по всей ширине обойму 3 из гибкого материала, в краевых част х которой закреплены неподвижно в местах их размещени продольные упоры 4. Обойма может быть снабжена дополнительным продольным упором 5, размещенным, в ее средней части, а в слабом грунте основани , между упорми могут быть выполнены продольные прорези 6. Обойма может быть выполнена из гибкого материала, например из полотнищ нетканого синтетического материала, а рассто ние от верхаThe earth structure on weak soils 1 includes an extension of 2 of mineral soil and a ferrule 3 of flexible material placed at its base along the entire width, in the marginal parts of which longitudinal stops 4 are fixed at their placement sites 4. The clamp can be provided with an additional longitudinal stop 5 placed in its middle part, and in weak ground of the base, longitudinal slots 6 can be made between the supports. The sleeve can be made of flexible material, for example, of nonwoven synthetic panels, and e from the top

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упоров до поверхности слабого грунта, расположенного под обоймой между смежными продоль ными упорами, не пре-- вышает величины С, определ емой по формулеstops to the surface of weak soil, located under the cage between adjacent longitudinal stops, does not exceed the value C determined by the formula

С о,5 А hi+Y55 C o, 5 A hi + Y55

где А - рассто ние между смежнымиwhere A is the distance between adjacent

продольными упорами; - предельное относительное удлинение материала обоймы, 7longitudinal stops; - limiting relative lengthening of a material of a holder, 7

/о ./about .

Способ возведени земл ного соору жени заключаетс в следующем.The method for erecting an earth formation is as follows.

На поверхность слабого грунта 1 укладьшают гибкую прослойку, напри- мер полотнища из нетканого синтети- ческот о материала, скрепленные друг с другом сшивкой ипи склейкой. По верху гибкой прослойки на рассто нии друг от друга, равном ширине насьти понизу устанавливают продольные упоры 3 с фт-жсированием их положени путем закреплени в сдабых грунтах основани 1-тк размещени между упорами поперечных балок. После фиксации упоров кра гибкой прослойки заворачивают вверх с частичным их нат жением и скрепл ют сшивкой или склейкой образу тем самым замкнутую обойму 3A flexible layer is laid on the surface of weak soil 1, for example, a cloth of non-woven synthetic material about the material, bonded to each other by stitching or gluing together. Along the top of the flexible layer at a distance from each other, equal to the width of our bottom, longitudinal stops 3 are installed with ft-zhsirovanie their position by fixing the base 1-tk placement between the stops of the transverse beams in the graded grounds. After fixing the stops, the edges of the flexible layer are wrapped up with a partial tension and fastened together with a stitching or gluing, thereby forming a closed case 3

fOfO

2525

- -

28008522800852

с расположенными внутри нее боковыми упорами.with side stops located inside it.

При необходимости, например при большей ширине земл ного полотна понизу, обойма может быть снабжена дополнительными продольными упорами 5, размещенными в ее средней части, а дл снижени высоты упоров в слабом грунте основани между упорами до устройства обоймы могут быть выполнены продольные прорези 6, между которыми, при необходимости, устра-- ивают дополнительные продольные упоры . После формировани обоймы 3 на ее поверхность послойно отсыпают минеральньй грунт, формиру насьть 2. При этом достигаетс нат жение материала обоймы под весом грунта насыпи, что приводит к увеличению ее армирующего эффекта и повышению устойчивости земл ного полотна.If necessary, for example, with a lower width of the earth bed, the holder can be equipped with additional longitudinal stops 5 placed in its middle part, and to reduce the height of the stops in weak ground of the base, longitudinal slots 6 can be made between the stops to , if necessary, arrange additional longitudinal stops. After the casing 3 has been formed, mineral soil is poured on its surface in layers, forming 2. At the same time, the casing material is tensioned under the weight of the embankment soil, which leads to an increase in its reinforcing effect and an increase in the stability of the landbed.

В результате использовани предлагаемого земл ного сооружени достигаетс повышение устойчивости земл ного полотна и снижение трудозатрат за счет повьтгени эффективности использовани армирующей способности обоймы из гибкого материала и исключени необходимости заполнени ее грунтом.As a result of the use of the proposed land structure, an increase in the stability of the earth bed and a reduction in labor costs are achieved by increasing the efficiency of using the reinforcing capacity of the cage of flexible material and eliminating the need to fill it with soil.

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Claims

The invention relates to construction and can be used in the construction of roads and railways on a weak foundation. The aim of the invention is to increase the stability of the earth bed and reduce labor costs. The drawing shows schematically an earth bed (an embodiment, a transverse section. The earth structure on weak soils 1 includes an array of mineral soil 2 and a ferrule 3 of flexible material placed at its base along the entire width, in the edge parts of which are fixed in places their placement of longitudinal stops 4. The yoke may be provided with an additional longitudinal stop 5 placed in its middle part, and in weak ground of the base, longitudinal slots 6 may be made between the stops. The yoke can be made made of flexible material, for example, of non-woven synthetic material, and the distance from the top of the stops to the surface of the weak soil located under the yoke between adjacent longitudinal stops does not exceed the value C determined by the formula C o, 5 A hi + Y55 where A - the distance between adjacent longitudinal stops; - the limiting relative lengthening of the material of the cage, 7 The method of erecting ground formation is as follows: A flexible layer, for example, a sheet of non-woven synthetic material, is laid on the surface of the weak ground 1. cat of material bonded together by gluing crosslinking FPI. Along the top of the flexible interlayer, spaced apart from each other, equal to the width of the bottom, longitudinal lugs 3 are installed with ft-zhsirovanie their position by fixing the base 1-tk between the transverse beam abutments in curved soils. After fixing the stops, the edges of the flexible layer are wrapped upward with their partial tension and fastened by stitching or gluing, thereby forming a closed case 852 with lateral stops located inside it. If necessary, for example, with a lower width of the earth bed, the holder can be equipped with additional longitudinal stops 5 placed in its middle part, and to reduce the height of the stops in weak ground of the base, longitudinal slots 6 can be made between the stops to , if necessary, arrange additional longitudinal stops. After the formation of the holder 3, the mineral soil is poured on its surface in layers, forming

2. In this case, the tension of the material of the cage is achieved under the weight of the embankment soil, which leads to an increase in its reinforcing effect and an increase in the stability of the earth bed. As a result of the use of the proposed land structure, an increase in the stability of the earth bed and a reduction in labor costs are achieved by increasing the efficiency of using the reinforcing capacity of the cage of flexible material and eliminating the need to fill it with soil. Claim 1. Ground construction on soft soils, including a mound of mineral soil and placed at the base of the embankment across its entire width, a clip of flexible material with longitudinal stops in its marginal parts, characterized in that, in order to improve the stability of the structure reducing labor costs for its erection, the longitudinal stops in the holder are fixed, and the distance C from the top of the stops to the surface of the weak ground of the embankment located between the longitudinal stops is determined by the ratio) 2 1 С i 0, 5 And where A is the distance by adjacent stops; f is the longitudinal relative elongation of the material of the yoke. 2, The structure according to claim 1, about tl and which is so that, the reamer is provided with an additional longitudinal 3 emphasis placed in its middle part. 3, the Construction according to claim 1, about the fact that in the weak soil of 12,800,854 digging between adjacent longitudinal stops there are longitudinal slots filled with embankment material.