A three-dimensional simulation device and method for advanced detection by meshing resistivity method

Abstract

The invention relates to a device and a method for three-dimensional simulation of advanced detection of a mesh generation resistivity method. The device mainly comprises an extendable three-dimensional model frame structure, a boundary grounding network, a prefabricated tunnel cavity, an electrode scanning array, a mesh generation water-bearing structure and a moving water circulation simulation device, wherein the prefabricated tunnel cavity is arranged inside the extendable three-dimensional model frame structure, the electrode scanning array is arranged inside the prefabricated tunnel cavity, simultaneously, the mesh generation water-bearing structure is arranged in front of the extendable three-dimensional model frame structure and is connected with the moving water circulation simulation device, the outer side of the extendable three-dimensional model frame structure is connected with the boundary grounding network, and the electrode scanning array, the mesh generation water-bearing structure and the moving water circulation simulation device are connected with a main machine. By the aid of the device, complex environments of tunnels and underground constructions such as underground tunnels can be simulated truly, and a scientific simulation test platform is provided for three-dimensional simulation of advanced detection of a water-bearing structure resistivity method.

Description

technical field [0001] The invention relates to a three-dimensional simulation device and method for advanced forecasting of resistivity of dynamic water and water-bearing structures by grid division in underground engineering such as tunnels or tunnels, in particular to a method for advanced forecasting of electrical resistivity of underground engineering grid division It is a physical simulation device and method, and it is a three-dimensional simulation device and method for simulating underground engineering grid subdivision resistivity method for advanced detection. Background technique [0002] The advanced detection and three-dimensional positioning of water-bearing geological structures during the construction period of tunnels and other underground projects has always been a problem that has attracted much attention in the field of advanced forecasting. Physical basis, it has unique advantages in the advanced detection of water-conducting geological structures. Sin...

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Problems solved by technology

[0009] Combined with the actual situation of the advanced detection of the tunnel resistivity method, the physical simulation work of the resistivity advanced detection of the underground engineering that has been carried out is analyzed, and the following problems and challenges exist in the physical simulation of the resistivity method of the underground engineering advanced detection: (1 ) The structure and shape of the water-bearing structures in the previous simulations were relatively simple, and the water-bearing structures with complex shapes could not be simulated, which was inconsistent with the actual situation of the tunnel; The influence of moving water on the electric field cannot be simulated; (3) In the previous simulations, the boundary of the model was a high-resistivity boundary, which did not solve the simulation problem of the infinite boundary, and the boundary interfered a lot with the results of the advanced detection; (4) The previous model frame The structure is fixed, and the expansion and flexible setting of the model size cannot be realized

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