Ultra-large horizontal penetration test system with intelligent graded loading and variable penetration diameter

Abstract

The invention discloses an ultra-large horizontal penetration test system with intelligent graded loading and variable penetration diameter. The ultra-large horizontal penetration test system comprises a water storage system, a water pressure system, a horizontal penetration test system and an intelligent loading and control system. The water storage system, the water pressure system and the horizontal permeability test system are sequentially connected; a water pressure and a vertical pressure are applied to a test piece to be tested in the horizontal permeability test system, a water outletvalve of the horizontal permeability test system is communicated with the water storage system, and the intelligent loading and control system controls electrical apparatus elements in the water pressure system and the horizontal permeability test system to act. The test system has the good effects of intellectualization of water head pressure loading, adjustability of a water inflow and seepage angle, variability of a seepage path of a test piece, provision of overlying stress, visualization of a test damage process, ultra-large simulation of the test piece and the like, the test system is simple and convenient to operate, and all parts can be flexibly disassembled and are convenient to transport and install.

Description

technical field [0001] The invention relates to the field of water conservancy engineering test development, in particular to a super-large horizontal seepage test system with intelligent graded loading and variable seepage diameter. Background technique [0002] The permeability of dam materials is the most concerned issue in the construction of earth-rock dams. The permeability test is one of the commonly used methods to measure the permeability coefficient of coarse-grained materials and the hydraulic gradient of deformation and destruction. The current commonly used permeation equipment has the following deficiencies: [0003] 1. The water flow direction of the penetration test is vertical, which does not match the actual horizontal or approximate horizontal seepage; [0004] 2. The diameter of commonly used infiltration equipment is only 30cm, and the maximum particle size of the test piece is only 6cm, which is inconsistent with the situation that the maximum particle ...

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Problems solved by technology

[0003] 1. The water flow direction of the penetration test is vertical, which does not match the actual horizontal or approximate horizontal seepage;

[0004] 2. The diameter of commonly used infiltration equipment is only 30cm, and the maximum particle size of the test piece is only 6cm, which is inconsistent with the situation that the maximum particle size of dam materials can reach 1m, and there is a large scale effect;

[0005] 3. The water head pressure that can be applied is very small, and it is artificially set and difficult to change, which cannot meet the actual needs of the current project;

[0006] 4. The damage phenomenon cannot be observed during the filter material test, which is easy to cause misjudgment;

[0007] 5. Commonly used infiltration equipment cannot apply the overlying stress, and the infiltration test is only carried out under the self-weight stress of the specimen, which is inconsistent with the actual situation that the specimen may bear an overlying stress of up to 2MPa

However, this patent application cannot be intelligently loaded, the angle of water inflow and infiltration cannot be adjusted, the infiltration diameter of the specimen cannot be changed, the overlying stress cannot be provided, the test failure process cannot be visualized, and it cannot be applied to super-large simulation institutions.

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