岩石力学与工程学报
巖石力學與工程學報
암석역학여공정학보
CHINESE JOURNAL OF ROCK MECHANICS AND ENGINEERING
2015年
z1期
3274-3280
,共7页
采矿工程%采动影响%底板突水%相似模拟%试验系统%伺服控制
採礦工程%採動影響%底闆突水%相似模擬%試驗繫統%伺服控製
채광공정%채동영향%저판돌수%상사모의%시험계통%사복공제
mining engineering%mining influence%floor water invasion%similar simulation%testing system%servo control
针对深部采动岩体“三高一扰动”地质围岩特殊问题，为研究岩体固流耦合条件下破坏演变规律、监测矿井底板突水灾变通道演变过程中的多场信息，自行研制深部采动高水压底板突水相似模拟试验系统。该系统主要包括试验台系统、伺服加载系统、水压控制系统和电脑信息采集系统，最大模型铺设尺寸为1200 mm×800 mm×1600 mm(长×宽×高)。试验系统中，水平压力和竖直压力由伺服加载装置实现，侧向和竖向加载单元最大荷载可达300 kN，作动器2个最大行程分别为200和400 mm，位移传感器量程达30 mm；最大水压力达1.5 MPa，由伺服稳压系统实现；水箱上出水孔处均匀安置96个光纤传感器，用以检测水压力和流量变化。该系统克服以往试验台可视度低、保压性弱、自动化程度低的问题，具有多样性、可靠性、全过程等特点，系统体积小、精度高、操作简便，适用于深部开采突水物理模拟及相关岩体固流耦合等问题。
針對深部採動巖體“三高一擾動”地質圍巖特殊問題，為研究巖體固流耦閤條件下破壞縯變規律、鑑測礦井底闆突水災變通道縯變過程中的多場信息，自行研製深部採動高水壓底闆突水相似模擬試驗繫統。該繫統主要包括試驗檯繫統、伺服加載繫統、水壓控製繫統和電腦信息採集繫統，最大模型鋪設呎吋為1200 mm×800 mm×1600 mm(長×寬×高)。試驗繫統中，水平壓力和豎直壓力由伺服加載裝置實現，側嚮和豎嚮加載單元最大荷載可達300 kN，作動器2箇最大行程分彆為200和400 mm，位移傳感器量程達30 mm；最大水壓力達1.5 MPa，由伺服穩壓繫統實現；水箱上齣水孔處均勻安置96箇光纖傳感器，用以檢測水壓力和流量變化。該繫統剋服以往試驗檯可視度低、保壓性弱、自動化程度低的問題，具有多樣性、可靠性、全過程等特點，繫統體積小、精度高、操作簡便，適用于深部開採突水物理模擬及相關巖體固流耦閤等問題。
침대심부채동암체“삼고일우동”지질위암특수문제，위연구암체고류우합조건하파배연변규률、감측광정저판돌수재변통도연변과정중적다장신식，자행연제심부채동고수압저판돌수상사모의시험계통。해계통주요포괄시험태계통、사복가재계통、수압공제계통화전뇌신식채집계통，최대모형포설척촌위1200 mm×800 mm×1600 mm(장×관×고)。시험계통중，수평압력화수직압력유사복가재장치실현，측향화수향가재단원최대하재가체300 kN，작동기2개최대행정분별위200화400 mm，위이전감기량정체30 mm；최대수압력체1.5 MPa，유사복은압계통실현；수상상출수공처균균안치96개광섬전감기，용이검측수압력화류량변화。해계통극복이왕시험태가시도저、보압성약、자동화정도저적문제，구유다양성、가고성、전과정등특점，계통체적소、정도고、조작간편，괄용우심부개채돌수물리모의급상관암체고류우합등문제。
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.
