The layout parameters of well groups and effect on land subsidence for salt mine in Zhangshu tourist area
The solution-mined caverns have high pressure which is in proportion to the depth and specific density of brine. The cavern pressure will be approximately 12MPa at the point of 1000m below ground level. This would provide the best protection for the cavern roof and the pillar zone. Additionally, with the salt rock dissolved, the insluble mine collapsed and deposited at the bottom of cavern as loosed state around the piller zone which is also helpful to the stability of the piller. Obviously, there are essential differences between the solid-mined and the solutionmined caverns, where the simple experience in analysising the subsidence for the solid-mined caverns is poorly suited for the salt caverns. This paper focuses on the conflicts between the use of salt mine and the safety of building in the tourist area. The layout parameters of the well-group are optimized with a conbination of laboratory experiment and numerical simulation, which ensure the sagety of building and the reasonable utilization of salt. The study is extremely economical in terms of land area in beded salt mine in China.
salt mechanical test convection of well-group optimized parameters subsidence numerical simulation
Yao Yuanfeng Yang Chunhe Li Yinping Ji Wendong
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
167-176
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）