Results 31 to 40 of about 14,678 (246)

Sensitivity Analysis of Mechanical Parameters of Collapse Roof of Carbonate Rock Deep Buried Oilfield

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, Qiangyong Zhang, Wen Xiang, Xinrui Lyu, Longyun Zhang   +4 more
doaj   +1 more source

Dynamic characteristics of groundwater level and exploitable amount of groundwater source in Jiuxian county, Tai'an

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, Yanling WANG, Zhiwei ZHAO, Yanan WU, Daiting ZHAI, Baizhong YAN   +5 more
doaj   +1 more source

Evolution Mechanism of Water-Conducting Channel of Collapse Column in Karst Mining Area of Southwest China

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, Yulou Ren, Qinting Wang, Banghua Yao, Xinchao Zhang   +4 more
doaj   +1 more source

Analysis on development characteristics and formation mechanism of karst collapse in Shakou Town, Yingde City of Guandong Province

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
doaj   +1 more source

Stratigraphy and Chronology of Karst Features on Rodriguez Island, Southwestern Indian Ocean [PDF]

, 2015
This publication has been made available with the permission of the National Speleological Society (www.caves.org).
Burney, DA, Burney, LP, Hume, JP, Middleton, GJ, Porch, N, Steel, L   +5 more
core   +1 more source

Report of Investigations No. 141 Hydrogeology of the Edwards Aquifer, Austin Area, Central Texas [PDF]

, 1984
UT ...
Kreiter, Charles W., Senger, Rainer K.
core   +1 more source

Identification, prediction and mitigation of sinkhole hazards in evaporite karst areas [PDF]

, 2008
Sinkholes usually have a higher probability of occurrence and a greater genetic diversity in evaporite terrains than in carbonate karst areas. This is because evaporites have a higher solubility, and commonly a lower mechanical strength.
Cooper, Anthony, Gutiérrez, F, Johnson, Kenneth   +2 more
core   +1 more source

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
openaire   +1 more source

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, Fujian CHU, Zhentao WANG, Chunmei YAO, Yanan CHEN, Bo LIAN, Zhongai WEI, Yonghui MENG   +7 more
doaj   +1 more source

Mechanisms and critical criteria of coverd karst collapses under extreme rainfall conditions

Carsologica Sinica
In recent years, the increasing occurrence of covered karst collapses triggered by rainfall conditions has posed a threat to human life and property safety. According to field investigations and statistical data, the triggering factors of karst collapses
Zongyuan PAN, Rui SHU, Jianling DAI, Yan MENG, Mingtang LEI, Long JIA, Xiao MA, Bing BAI   +7 more
doaj   +1 more source