深部采动底板突水模拟试验系统的研制与应用

doi:10.13722/j.cnki.jrme.2014.0538

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Abstract A larger similar physical model experiment system for floor high water inrush in deep mining is developed to solve special problems in deep rock mining，such as the high in-situ stress，the high ground temperature，the high hydraulic pressure and the dynamic disturbance，and it also provide information on landslide evolution law and the evolution process of inrush water channel under the conditions solid fluid coupling of rock. The mainly parts of this design are test bench system，servo loading system，hydraulic control system and computer information collection system. Its maximum three-dimensional size is 1 200 mm×800 mm×1 600 mm. The horizontal and vertical pressures of this experiment system are realized by closed circuit servo-loading devices with the maximum charge of 300 kN，the actuator?s maximum stroke are 200 and 400 mm respectively and the displacement sensor reached to 30 mm；the maximum water pressure reached to 1.5 MPa is realized by servo-regulator system；96 fiber optic sensors are set on the hole at the water tank to detect changes of water pressure and flow. Has been overcome problems of low visibility and degree of automation、pressure weakly of previous test system，this simulated experiment system shows characteristics of diversity、reliability and the whole process. Therefore，with the advantages of small，high precision and simple operation，this system suitable to solve problems such as the physical simulation of floor water invasion，solid-fluid coupling of rock in deep mining and so on.

Key words： mining engineering mining influence floor water invasion similar simulation testing system servo control

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.0538 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/Is1/3274

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