A kind of rock and soil grouting method

Abstract

Provided is a rock and earth mass grouting method. By changing the temperatures of different components of grout, the temperature difference between the grout and an injected rock and earth mass is improved, the feature that the fluidity of the grout is enhanced when temperature rises is used, the larger diffusion radius of the grout in a rock and earth mass hole and a fracture is obtained, the injecting feature of the grout in an earth mass and broken rocks is improved, the purpose of grouting effect enhancing is achieved, meanwhile, during the process that the grout seeps and carries out heat conducting in the rock and earth mass, the temperature character of a near rock and earth mass is changed, and the temperature monitoring feature of the grouting diffusion range can be obtained. An active temperature rising method is used for achieving the process, the method is simple, the injecting performance of the grout is improved, meanwhile, the injecting range of the grout has temperature measurability, and certain practicability and promoting value are achieved.

Description

technical field [0001] The invention relates to a grouting method for rock and soil mass, which is especially suitable for grouting reinforcement of underground rock mass and soil mass, and grouting anti-seepage projects, including back grouting, reinforcement grouting, And ground grouting works. Background technique [0002] The objects of underground geotechnical engineering problems are rock-soil mass, water, and engineering structures. The mutual coupling and mutual influence of rock-soil mass and engineering structures result in different problems in the normal use of underground space and space stability. In the process of solving such problems, the grouting method is one of the commonly used methods. The mechanical properties and permeability properties of the surrounding rock (surrounding soil) are improved through the infiltration and solidification of the grouting grout, so as to realize the stability of the engineering structure and reduce the water seepage of the...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many types of grout materials commonly used in underground grouting projects. Materials with fluidity and gel properties can be used as grouting materials. From a large perspective, they can be divided into organic grout materials and inorganic grout materials. People Considering the injectability of the slurry and the stability after injection, the density, viscosity, gel time, stone rate, compressive strength, plastic strength (extrusion resistance) and other characteristics of the slurry material are mainly considered, but the temperature characteristics Lack of attention and in-depth research on

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