Results 21 to 30 of about 14,305 (228)
Energies, 2023 Carbonate rock oilfields account for two-thirds of proven marine carbonate oilfield reserves, which are the primary way to increase future oil and gas energy reserves.
Yanzhi Ding +4 more
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Carsologica Sinica, 2023 In this study, the effect of human activities on the evolution characteristics of groundwater levels in the water source area of Jiuxian county and its influencing factors have been discussed, based on the data of groundwater levels, annual precipitation,
Kai WEI +5 more
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Geofluids, 2021 There are many karst collapse columns in coal seam roof in the southern coal field in China, which are different from those in coal seam floor in the northern coal field, due to the stratum characteristics.
Zhengzheng Cao +4 more
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Zhongguo dizhi zaihai yu fangzhi xuebao, 2022 In recent years, the collapse of hidden karst ground in the mountainous area of north Guangdong Province is increasing, which directly affects people's production and life.
Jianjun ZHAO
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Report of Investigations No. 141 Hydrogeology of the Edwards Aquifer, Austin Area, Central Texas [PDF]
, 1984 UT ...
Kreiter, Charles W., Senger, Rainer K.
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Prediction of the Collapse Region Induced by a Concealed Karst Cave above a Deep Highway Tunnel
Advances in Civil Engineering, 2020 The presence of a concealed karst cave above a deep highway tunnel may cause the collapse of the rock mass between the karst cave and tunnel during excavation. Rock mass collapse threatens the safety of tunnel construction personnel.
Fu Huang, Di Wang, Yuan Feng, Min Zhang
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Study on the early warning model based on the occurrence index of karst collapse in Linyi City
Carsologica Sinica, 2023 The urban area of Linyi City is endowed with the basic conditions for the development of karst collapse. In this area, Ordovician limestone with karst development is widely distributed, and the limestone is covered by a thin Quaternary overburden with a ...
Lianqing ZOU +7 more
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Numerical Simulation of Karst Collapse in Qingling Town, Wuhan
Journal of Physics: Conference Series, 2023 Abstract With background information on the geological conditions of Fenghuo village, Qingling town, Wuhan, based on Terzaghi consolidation theory and GMS software, a hydrodynamic-mechanics coupling model was established. On the basis of simulating the groundwater flow field by GMS software, a mechanical calculation program was developed,
Dongqin Chen, Yi Cao
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Identification and Treatment of Collapse and Mud Inrush Caused by Deep Karst Trough in Tunnels
Geofluids, 2023 To predict and prevent the collapse and mud inrush caused by the deep karst trough in tunnels, an engineering case is studied. Firstly, a comprehensive identification method for the hazard-causing structure of the deep karst trough in tunnels is proposed
Xin Huang +4 more
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IOP Conference Series: Earth and Environmental Science, 2019 Abstract Karst collapse is one of main important geological disasters in Linyi city of Shandong Province. In this article, risk assessment of present and forecast situation of karst collapse have been done by the method of fuzzy comprehensive evaluation based on level analysis at the first time.
Yao Chun-mei +4 more
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