Inclined well wall post-grouting model test device and test method
A model test device and grouting technology behind the wall, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of research, grout diffusion law and reinforcement mechanism, etc., and achieve convenient operation, moderate volume, and high overall strength. Effect
Inactive Publication Date: 2018-04-20
CHINA UNIV OF MINING & TECH
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[0038] The present invention will be further explained below in conjunction with the accompanying drawings.
[0039] Such as figure 1As shown, the post-grouting model test device of a kind of inclined shaft wall of the present invention can realize the control of water and sand inrush by simulating the post-grouting of inclined shaft wall in the laboratory, including constant water pressure system 1, model test box 2, pressure top Lifting system 3, pressure compensation system 4, double liquid grouting system 5 and data acquisition system 6.
[0040] Such as Figure 6 As shown, the constant water pressure system 1 is used to provide a constant water head height of a certain required height in the model box, and ensure that the water pressure is similar according to the similarity theory. The constant water pressure system includes a water tank bracket 11, a clamp 12, an outer water tank 13, Water pipe 14, scale 15, inner water tank 16, water injection valve 17 and water pipe...
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Abstract
The invention discloses an inclined well wall post-grouting model test device and test method. The test device comprises a normal water pressure system, a model test box, a pressure jacking system, apressure compensation system, a double-liquid grouting system and a data collection system. The test method mainly comprises the steps of rock soil body test specimen laying, double-liquid grouting, parameter collection, slurry diffusion rule and grouting effect analysis. The grouting model test can be performed under the condition of simulating different geological conditions and different inclined well angles; the collection on the grouting pressure, the pore water pressure in the grouting process and the soil pressure collection in the grouting process can be realized; the diffusion rule ofthe slurry in the rock soil body can be observed, so that the reinforcing mechanism of the inclined well wall post-grouting in the practical engineering and the stress state of the well wall in the grouting process can be really reflected; the test result is accurate and reliable; the reliable basic data is provided for the theory analysis and engineering practice.
Description
technical field [0001] The invention belongs to the technical field of test devices for shaft engineering and tunnel engineering, and in particular relates to a model test device and a test method for post-grouting of an inclined shaft wall. Background technique [0002] The mine shaft is the "throat" of the entire mine to realize production and transportation, and to undertake the transportation tasks of mine materials and equipment, as well as the main air intake shaft and safety exit. The fracture of the inclined shaft wall is often accompanied by complex situations such as water seepage, water gushing, sand inrush, and water loss and compression of the rock and soil around the shaft wall. Without treatment, it is easy to cause disasters and safety accidents such as water inrush and sand inrush. This kind of disaster often has the characteristics of sudden occurrence, pressure bearing and strong destructive force, which seriously affects the production and safety of mines...
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IPC IPC(8): G01N13/00
Inventor 隋旺华袁世冲张改玲惠爽郑国胜
Owner CHINA UNIV OF MINING & TECH