Visual splitting grouting test device and method for cracked rock mass loaded in two directions

Abstract

The invention proposes a two-way loaded fissure rock mass visual splitting grouting test device and method, which are suitable for the field of geotechnical engineering. Including split steel box, lateral pressure loading part, grouting part, stress monitoring part, separate hydraulic jack and high-speed camera. The axial pressure is applied through the loading device, and the lateral pressure is exerted by the lateral loading liquid bladder through hydraulic pressure, which combines the scalability of the lateral loading liquid bladder with the low stiffness of the axial pressure loading plate, and eliminates the loading of cracked rock mass The corner effect; moreover, the whole process of splitting grouting slurry migration can be photographed in real time by using transparent acrylic plates; the rock samples are spliced ​​according to different combination phases to form fractured rock mass, which well simulates the Cracks with different inclination angles; solve the problem of edge effect and invisible in the loading rock mass pattern, and assemble the cracked rock mass in the form of a spliced ​​rock sample for splitting grouting test under two-dimensional stress state, which is very important for research Splitting grouting of fractured rock mass is of great significance.

Description

technical field [0001] The invention relates to a grouting test device and method, and is especially suitable for a visual splitting grouting test device and method for two-way loading cracked rock mass used for physical simulation in the field of geotechnical engineering. Background technique [0002] The grouting theory is a basic theory under the multidisciplinary interdisciplinary, which mainly involves disciplines such as hydraulics, fractured rock mechanics, fluid mechanics, and consolidation mechanics. Based on the method of grout consolidation, the relationship among related grouting parameters such as grouting radius, grouting pressure, grouting flow rate and grouting gel time is theoretically established. At present, most scholars are limited to the study of permeable grouting and grout diffusion in the research of grouting, and there are few researches on existing split grouting. For the research of split grouting, most scholars are taking soil as the object of s...

AI Technical Summary

Problems solved by technology

At present, most scholars are limited to the study of permeable grouting and grout diffusion in the research of grouting, and there are few studies on the existing split grouting.

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