Experimental device for simulating soil splitting grouting indoors

Abstract

The invention belongs to the technical field of constructional engineering instruments and equipment, and particularly relates to an experimental device for simulating soil splitting grouting indoors. The experimental device comprises a pressure supply device, a slurry storage tank, a support, an electronic scale, a grouting pipe and a model box. The pressure supply equipment is used for supplying pressure and pouring grout, simultaneous grouting is conducted through the grouting holes of different heights, and grouting work in the experiment process can be efficiently and evenly conducted. Acrylic glass plates and steel trusses on the periphery of the model box can be disassembled, assembling and disassembling are convenient, meanwhile, the model box can be directly filled with a soil body needing to be researched, the actual engineering environment can be simulated, the influence of slurry on the soil body can be visually observed, and the research requirement of the slurry diffusion mechanism is met. According to the experimental device, after a grouting experiment is completed and slurry is solidified, a soil body in the model box is excavated, and the trend of the slurry in the soil body, the distribution of slurry veins and the diffusion distance can be clearly observed due to the fact that a coloring agent is doped in the slurry.

Description

technical field [0001] The invention belongs to the technical field of construction engineering instruments and equipment, and in particular relates to an experimental device for indoor simulating soil splitting and grouting. Background technique [0002] There is an urgent need to build a large number of highway bridges and large buildings in plateau and mountainous areas, and pile foundations play an important role in them. However, the post-grouting technology of cast-in-situ piles can improve the bearing capacity of pile foundations, and has almost no impact on the construction period, thus creating huge social and economic benefits. However, due to the regionality and complexity of the soil, the post-grouting technology used in the current actual engineering is in a semi-empirical and semi-theoretical state in terms of design, making it difficult for theoretical research to meet the needs of actual engineering. This has had a serious impact on the development of societ...

AI Technical Summary

Problems solved by technology

At present, there is no perfect grouting experimental device for the research on the diffusion mechanism of slurry in soil, which has brought a large degree of restriction to the research work. Although there are some simple experimental devices in the prior art, these Most of the experimental equipment still stays in the traditional grouting method, such as the existing model box, etc., the grouting efficiency and grouting uniformity are poor, and it is impossible to simulate the actual engineering environment, and it is impossible to directly observe the impact of the grout on the soil. Meet existing research needs

Images