True triaxial multifunctional large deep mine laneway model testing machine

Abstract

The invention relates to a true triaxial multifunctional large deep mine laneway model testing machine, which comprises a doughnut shape-like framework system, a hydraulic loading and pressure preserving system, a control system, a pressure water system, an equipment base system and a model dismounting system. The true triaxial multifunctional large deep mine laneway model testing machine is characterized in that the doughnut shape-like framework system is a full sealing structure and can perform the true triaxial five-face and three-directional loading, provide higher model surface stress, preserve high pressure for a long time and carry out the water-yield pressure preserving test. The true triaxial multifunctional large deep mine laneway model testing machine is applicable to multiple scientific studies of the deep mine laneway, and achieve the simulation tests of mutual influences of excavation, supporting, tunneling, water inrush, and high floor pressure, and others of the underground laneway project; the testing machine has the advantages of being compact and simple in structure, convenient to operate, and environment-friendly and energy-saving.

Description

Technical field [0001] The invention patent is suitable for multiple scientific researches on deep mine roadways, and realizes the model test of the mutual influence of underground roadway engineering excavation, support, tunneling, water inrush and high ground pressure. Background technique [0002] Underground mining is the main source of mineral resources. In the long-term and high-intensity mining, the shallow mineral resource reserves are gradually decreasing, and the mining wells are getting deeper and deeper. With the increase of mining depth, there are more and more disasters in the roadway of broken rock mass in high ground pressure and high water pressure mines. Under conditions of high ground stress, a series of new features and phenomena have appeared in the structure, mechanical properties and engineering response of the surrounding rock of deep caverns, which have become a hot issue in the field of rock and soil mechanics and engineering. Model tests have their uni...

AI Technical Summary

Problems solved by technology

[0003] The existing related devices and systems have the following deficiencies: there is no fully sealed true triaxial loading system, no pressure water system capable of simulating deep high water pressure, insufficient loading pressure, and no long-term pressure-holding effect, making the simulation The force of surrounding rock in the real situation is very different from the real situation, and it is impossible to simulate the rich water tests such as water seepage, water inrush and water gushing in the real situation

Images