Model test observation method for loess splitting grouting process

Abstract

The invention provides a model test observation method for a loess splitting grouting process. The method comprises the steps: step S1, determining the size of model boxes; step S2, determining grouting parameters and grouting equipment parameters; step S3, determining the total grouting time T of an indoor model test; step S4, determining the number of the model boxes, and determining the grouting time of each model box; step S5, carrying out loess body filling on each model box; step S6, grouting on the model boxes according to the calculated grouting time; step S7, after grouting is completed, disassembling the model boxes, and observing the slurry vein form in the model boxes; step S8, carrying out image acquisition on the slurry vein form; and step S9, processing the acquired image to obtain the whole process of splitting grouting slurry diffusion. The problem that slurry vein formation and expansion are difficult to observe in the soil splitting grouting process is solved, a brand new thought is provided for in-depth study of the splitting grouting mechanism, and optimization of the actual engineering grouting technology and grouting parameters is facilitated.

Description

technical field [0001] The invention belongs to the technical field of loess grouting, and in particular relates to a model test observation method for loess splitting grouting process. Background technique [0002] Grouting includes infiltration grouting, compaction grouting and splitting grouting, and splitting grouting is the most widely used grouting method at present. It is widely used in engineering fields. The law of grout diffusion and vein shape development in the split grouting process is an important support for the study of the split grouting mechanism and an important basis for evaluating the split grouting effect. However, the splitting grouting process is extremely complex, and it is difficult to visualize the occurrence and development of the grouting process, especially in the three-dimensional grouting model test, it is difficult to obtain the grout diffusion and grouting veins during the splitting grouting process. The law of shape development. [0003]...

AI Technical Summary

Problems solved by technology

However, the splitting grouting process is extremely complex, and it is difficult to visualize the occurrence and development of the grouting process, especially in the three-dimensional grouting model test, it is difficult to obtain the grout diffusion and grouting veins during the splitting grouting process. Morphological development law

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