(1. Geotechnical Engineering Research Center,Shandong University,Jinan,Shandong 250061,China;
2. School of Civil Engineering,Shandong University,Jinan,Shandong 250061,China)
Abstract:With the world's increasing demand for mineral resources and energy,the mining activities of human being have entered deep underground. In order to reveal the nonlinear deformation properties and strength failure mechanism of ultra deep cavern under high ground stress,a 3D ultra high pressure loading model test system with intelligent control function was developed by using the numerical control and photoelectric conversion technology. The model test system is composed of a counter-force frame,an ultra high pressure loading system,an intelligent hydraulic control system,an automatic collection system of model displacement and a high definition multi probe peep system. The rated output of the model system is 63 MPa,the maximum load is 45 000 kN and the loading accuracy is 0.05 MPa. The true 3D non-uniform gradient loading at super high pressure is realized with the numerical control technology. The automatic monitoring of the model displacement is realized with the photoelectric conversion technology and the precision of displacement measurement is 0.001 mm. The failure state of the model cavern is observed through the multi probe system of high definition. 3D geomechanical model test of failure of ultra deep oil karst cave in Tahe Oilfield in Xinjiang was carried out by utilizing the model test system. The failure mode,the nonlinear deformation characteristics and the stress variation of the karst cave in the process of formation were effectively revealed. The results of the model test has verified the reliability of the model test system.
张强勇1,向 文2,张 岳1,王 超1,刘传成1. 超高压智能数控真三维加载模型试验系统的研制及应用[J]. 岩石力学与工程学报, 2016, 35(8): 1628-1637.
ZHANG Qiangyong1,XIANG Wen2,ZHANG Yue1,WANG Chao1,LIU Chuanchen1. Development and application of ultra high pressure 3D loading model test system with intelligent numerical control function. , 2016, 35(8): 1628-1637.
李 阳. 塔河油田碳酸盐岩缝洞型油藏开发理论及方法[J]. 石油学报,2013,34(1):115-121.(LI Yang. The theory and method for development of carbonate fracture-cavity reservoirs in Tahe oilfield[J]. Acta Petrolei Sinica,2013,34(1):115-121.(in Chinese))
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