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用于岩土工程和深部地下工程问题研究的、颇具特色的大型三轴物理模拟试验台于1986 年在中国矿业大学建立并通过技术鉴定。该试验台有效试验净高2 .4 m ,有效试验直径达1 .6 m , 试验压力可达11 .0 MPa 。10 年来,利用这个试验台先后进行了人工冻结温度场、冻结壁的厚度与变形、冻结管受力与变形、深表土立井井壁受力以及地层加固后围岩与井壁相互作用等诸多课题的研究,累计试验次数超过百次,取得了包括井壁破坏机理的“附加力理论”在内的一系列研究成果。
The characteristic large-scale three-axis physics simulation test bench for geotechnical engineering and deep underground engineering research was established in 1986 at the China University of Mining and passed technical appraisal. The test bench effective test net height 2. 4 m, effective test diameter up to 1. 6 m, test pressure up to 11. 0 MPa. In the past 10 years, using this test rig, successively carried out many topics such as the artificial freezing temperature field, the thickness and deformation of the frozen wall, the force and deformation of the freezing pipe, the stress of the shaft wall of the deep top soil, and the interaction between the surrounding rock and the well wall after the strata reinforcement. In the study, the cumulative number of trials exceeded one hundred times, and a series of research results including the “additional force theory” including the failure mechanism of the borehole wall were obtained.