Model Test Study On External Load Of Shaft Lining In Water-bearing Bedrock Section In Western Region

In this paper,the stress mechanism of water-bearing bedrock stratum in Western shaft is mainly studied.The main research methods are theoretical analysis,model test and numerical simulation.Through the above three methods,the specific research contents of the external load formation mechanism of water-bearing bedrock stratum in Western shaft are as follows:By referring to a large number of similar materials,the types of similar materials in various articles are summarized.Characteristic,function and dosage are listed in a statistical table.The suitable materials are selected by using the similar material statistics table and combining the strength,modulus of elasticity and permeability which are the key considerations.Combining a large number of reference materials for similar materials,the number of materials used in the literature,and the experimental production steps for developing similar materials.The strength,permeability and modulus of elasticity of the developed similar materials are compared with those of aquifer bedrock,and the standard of composite similar materials is verified.Using the developed similar materials to simulate aquiferous bedrock strata on the test bench,it is necessary that the test device can realize the loading,unloading and initial water-proof of surrounding rock's external water pressure and solid pressure;it is necessary to accurately control,measure and record the water pressure,surrounding rock pressure and water inflow during the test process;it is necessary to realize the continuous loading of water pressure and drainage after excavation.The model test is used to study the stress analysis of the water-bearing bedrock of the Western shaft under external loads.Finally,through the numerical simulation analysis,the stress diagram of the external load analysis of the aquifer bedrock stratum in the Western vertical well is obtained,which is compared with the model test.If the error is allowed,the experimental success data is reliable.Figure[86]table[15]reference[53]...