Laboratory simulation test system and method applicable to sand layer permeation grouting

Abstract

The invention discloses a laboratory simulation test system and a method applicable to sand layer permeation grouting. The system comprises a power device, a bearing grout storage bucket, a grouting pipeline and a grouting test device, wherein the power device applies pressure on the bearing grout storage bucket, so that grout in the bearing grout storage bucket is conveyed to the grouting test device by the grouting pipeline. The grouting test device comprises an experimental bench, the experimental bench is provided with a containing space for bearing a grouted medium, a grouting port is formed at the upper end of the containing space, and a grout discharge port is formed at the lower end of the containing space, so that a permeation process of pressed grout in the grouted medium is tested. The system adopts fabricated device design, so that a simulation test of sand layer permeation grouting performance can be performed by lower cost, less time and lower manpower input, and a relatively ideal effect can be obtained.

Description

technical field [0001] The invention relates to an indoor simulation test system and method suitable for sand layer permeation grouting. Background technique [0002] The grouting method is to inject the grout with coagulation ability into the loose formation or the weak and broken surrounding rock to squeeze out the air or water by filling, infiltration, compaction, etc. After the grout is condensed, the reinforced body forms a better impermeability A whole with higher strength to achieve the purpose of water blocking and reinforcement of rock mass or soil mass. [0003] For the infiltration grouting theory, Chinese scholars have carried out a series of large-scale model test research work and obtained certain experience and results. However, the blind pursuit of large-scale model tests increases the possibility of introducing various unfavorable factors that affect the experimental results. At the same time, the repeatability of the test device is poor, the test period is...

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Problems solved by technology

[0003] For the infiltration grouting theory, Chinese scholars have carried out a series of large-scale model test research work and obtained certain experience and results. However, the blind pursuit of large-scale model tests increases the possibility of introducing various unfavorable factors that affect the experimental results. At the same time, the repeatability of the test device is poor, the test cycle is long, it is not convenient to carry out large batches of test groups, and it also causes unnecessary waste of resources and manpower

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