A grouting model test device and method for multi-field environment coupling
A grouting model and test device technology, applied in the direction of applying stable tension/pressure to test material strength, measuring devices, suspension and porous material analysis, etc., can solve complex environmental and geological conditions, difficult qualitative judgments, etc. question
Active Publication Date: 2022-06-07
CHINA RAILWAY TUNNEL GROUP CO LTD +2
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Problems solved by technology
[0003] Due to the complexity of the actual grouting site environment and geological conditions, it is difficult to make a qualitative judgment on the grouting method, grouting material and grouting effect before grouting
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Embodiment Construction
[0035] The invention discloses a grouting model test device for multi-field environment coupling, such as figure 1 , 2 Shown in and 3, comprising: cylindrical steel cylinder 6, vertically arranged, is used for filling rock or soil mass medium in it; Inside top coaxially is provided with a piston 9, and the outer wall of piston 9 and cylindrical steel cylinder 6 The inner wall of the piston 9 is tightly fitted, and when the piston 9 moves downward, it is used to extrude rock or soil. At least one through hole is opened axially on the piston, and a discharge outlet flowmeter 8 is arranged outside the through hole; the through hole is used as a circulation channel for the water in the cylindrical steel cylinder 6 to flow out, and the discharge outlet flowmeter 8 is used to measure the rock or soil. The amount of water that flows out after the body is squeezed. There are two seal ring grooves on the piston 9 at intervals around its circumference for placing an "O" seal ring 10 ....
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Abstract
The invention discloses a grouting model test device for multi-field environment coupling, which comprises: a cylindrical steel cylinder, which is vertically arranged, and is used for filling rock or soil; the upper part of which is coaxially arranged There is a piston, and the outer wall of the piston is in close contact with the inner wall of the cylindrical steel cylinder. When the piston moves downward, it is used to squeeze the rock or soil. The constant temperature water storage tank is used to deliver constant temperature water into the cylindrical steel cylinder to fill the pores and cracks of the rock or soil; the supply force device is used to provide the power for the piston to move downward to squeeze the rock or soil; the slurry supply system, It is used to deliver slurry to the cylindrical steel cylinder to displace the remaining water in the pores and cracks of the squeezed rock or soil. The grouting model test device for multi-field environment coupling can simulate the grouting conditions of broken rock and sandy soil under different water temperatures and grouting parameters, and then analyze the grout diffusion mechanism, grouting reinforcement mechanism and effect.
Description
technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a grouting model test device and method for multi-field environment coupling Background technique [0002] Grouting is to displace the inherent air and water in the surrounding rock holes and fissures with grout, and then rebond the fractured rock and soil mass to enhance the strength, impermeability and heat insulation performance of the rock and soil mass. Before grouting, it is necessary to make a prediction on the nature of the grouting object, what kind of grouting material to choose, what kind of grouting method to use, and what kind of grouting effect will be achieved after grouting, so as to increase the controllability of the grouting process and reliability. [0003] Due to the complexity of the actual grouting site environment and geological conditions, it is difficult to make a qualitative judgment on the grouting method, grouting materia...
Claims
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IPC IPC(8): G01N3/12G01N15/08G01N25/20
CPCG01N3/12G01N15/0826G01N15/088G01N25/20G01N2203/0019G01N2203/0048
Inventor 高广义余永强黎建军范利丹张纪云翟康博徐海廷刘永胜王卓龚健孙亮王树仁张文新李广跃赵爽皮乾勇
Owner CHINA RAILWAY TUNNEL GROUP CO LTD