Device and method of test for simulation of deep-lying tunnel blasting excavation unloading

Abstract

The present invention discloses a device and method of test for simulation of deep-lying tunnel blasting excavation unloading. The device comprises model frame outer frames, a model frame inner frame,a front side plate, a back side plate, a model sample, a bearing plate, hydraulic jacks, a high-pressure oil pump, a pressure tube, a dynamic test analyzer, a dynamic strain indicator, a statical strain indicator, a blasting vibration monitoring instrument, a computer, a speed sensor, miniature pressure boxes, resistance strain sheets, a wire, an exploder, a shot hole and a cartridge. The test method comprises the following steps of: the step 1, manufacturing of the model sample; the step 2, installation of the model sample; the step 3, loading of the model sample; the step 4, simulation of blasting excavation and data collection; and the step 5, data processing and analysis. The device and method of test for simulation of deep-lying tunnel blasting excavation unloading can perform good recovery of a tunnel geological environment according to a certain similarity and according to actual geological data through a similar material simulation test, are low in cost and convenient to operate, and can reflect a general rule of surrounding rock deformation and destroying.

Description

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AI Technical Summary

Benefits of technology

This technology allows researchers to create simulations that mimic various situations during drilling operations or exploring new areas without having to manually collect important sensor readings from previous models. By doing this they will help predict future changes caused by these environmental variables like pressure waves and shocks applied through the borehole walls while drill holes. These results could lead to better decision making about optimizing drilling strategies based upon specific circumstances.

Problems solved by technology

This patents discusses different ways to improve the durable life (C) of buried objects like tunneling during their lifetimes. However, current techniques involve expensive equipment or require specific environmental factors limiting their effectiveness at addressing these issues. There is also interest in studying how damaged areas around tunnelling may lead to further deteriorating the structure's integrity over time without requiring extensive replacements.

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