Side slope anti-collapse structure for expressway and construction method of side slope anti-collapse structure

Abstract

The invention discloses a side slope anti-collapse structure for an expressway and a construction method of the side slope anti-collapse structure. The side slope anti-collapse structure comprises a supporting system, a drainage pipe, a water intercepting ditch and a side slope supporting surface, wherein the supporting system is arranged in a side slope and connected with the side slope supporting surface; the side slope supporting surface is composed of a reinforcing mesh and concrete mortar; the drainage pipe is inserted into the side slope and arranged at the bottom of the side slope; thewater intercepting ditch communicates with the drainage pipe; water permeable holes are uniformly formed in the part, inserted into the side slope, of the drainage pipe; and the periphery of the drainage pipe is wrapped in sponge as a filter layer. According to the side slope anti-collapse structure for the expressway and the construction method of the side slope anti-collapse structure, the timeliness of the side slope reinforcement of the expressway is fully considered, the construction process is simple, and the construction can be performed in time; and in addition, the support structure has good bearing capacity and deformation resistance, water in a side slope soil body can be discharged by the drainage pipe, the bearing capacity and stability of the side slope soil body can be effectively improved through the reinforcement of a vertical pipe and a tangential pipe, and the damage is avoided.

Description

technical field [0001] The invention relates to the technical field of fireproof and thermal insulation boards, in particular to a slope anti-collapse structure for expressways and a construction method thereof. Background technique [0002] In recent years, as my country's expressway process has entered a stage of rapid development, the grading coefficient of the slope is greatly restricted during the construction of the expressway slope. At the same time, the complex proximity and hydrogeological conditions make the foundation pit edge There is a great potential safety hazard; [0003] The stability of the slope also affects the stability and safety of the expressway. The instability, large deformation and damage of the slope will cause uneven settlement of the road surface, resulting in inclination, cracking and even collapse of the road surface, causing huge economic losses to the country and society. loss; [0004] There are many ways of slope support at present, such ...

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Problems solved by technology

[0006] In order to solve the above problems, the present invention discloses a side slope anti-collapse structure for expressway and its construction method, which fully considers the timeliness of expressway side slope reinforcement, the construction procedure is simple, and can be done in time. In addition, the support The structure has good bearing capacity and anti-deformation ability. It can track the results of on-site monitoring for grouting reinforcement, which can effectively save costs and improve the reliability of the support structure. By placing soil nails with a certain length and distribution density in the soil and The soil works together to make up for the lack of strength of the soil itself, improve the overall stiffness of the soil, and make up for the weakness of the soil's low tensile and shear strength. In addition, the ductility of the soil nails also prevents the slope from being brittle even if it is damaged. The intercepting ditch and the drainage pipe are important structures to control the water level in the soil of the slope. Excessive water level reduces the stability of the slope. The intercepting ditch can effectively prevent rainfall and ground water For the impact on the slope, the drainage pipe can remove the water in the soil of the slope and effectively reduce the water level. When the deformation of the slope is too large or the deformation rate is too large, the vertical pipe and the tangential pipe Reinforcement can effectively improve the bearing capacity and stability of slope soil and avoid damage

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