Results 31 to 40 of about 158,678 (171)

Linkage Analysis between Solid-Fluid Coupling and the Strength Reduction Method for Karst Cave Water Inrush in Mines

Shock and Vibration, 2020
The present paper aims to study the mechanical mechanism and characteristics of water irruption from Karst cave. Combining the nonlinear seepage-pipe coupling model with the strength reduction method, the linkage analysis of fluid solid coupling and ...
Yanlin Zhao, Jian Liao, Qiang Liu, Yang Li, Jianchao Cheng   +4 more
doaj   +1 more source

Research on the standardized system of protecting and utilizing karst cave tourism resources

Carsologica Sinica
Karst caves are among the most important geological tourism resources in the world, yet their delicate ecological environments present great challenges for both the protection and sustainable utilization.
Shuwen LUO, Shiqin LUO, Kehua WU, Tao YANG, Yadong DENG, Yuxuan LIU, Yongqin MAO, Hongzhi ZHANG   +7 more
doaj   +1 more source

Study on Fractal Characteristics of Evolution of Mining-Induced Fissures in Karst Landform

Energies, 2022
The karst landscape is widespread in the southern region of China. As a result of underground mining activities, the original stress equilibrium is disrupted, causing the redistribution of stress in the overlying rock layer, inducing the longitudinal ...
Rentao Gou, Chengyu Jiang, Yong Liu, Chen Wang, Yuanlin Li   +4 more
doaj   +1 more source

Research on Collapse Risk Assessment of Karst Tunnels Based on BN Self-Learning

Buildings
The high risk of collapse is a key issue affecting the construction safety of karst tunnels. A risk assessment method for karst tunnel collapse based on data-driven Bayesian Network (BN) self-learning is proposed in this study.
Jinglai Sun, Yan Wang, Xu Wu, Xinling Wang, Hui Fang, Yue Su   +5 more
doaj   +1 more source

Development and formation conditions of karst collapse induced by tunnel engineering in the Gele Mountain area

Shuiwen dizhi gongcheng dizhi, 2023
In recent years, intensive tunnel construction has induced a large number of karst collapses in the Gele Mountain area. However, the distribution, scale, cause and evolution of karst collapses have not been systematically summarized.
Xun JIANG, Cong CAO, Zhi LIU, Siyu GONG, Lai WEI, Fan SUN   +5 more
doaj   +1 more source

Resolving the biome debate: ecological and palaeo‐data concur that the extensive tree‐limited grassy biomes of central and north‐western Madagascar are largely anthropogenic

Biological Reviews, EarlyView.
ABSTRACT For millennia, human activities have transformed ecosystems globally. Determining which landscapes are predominantly anthropogenic is crucial to conservation and habitat restoration. Madagascar, a critically‐threatened biodiversity hotspot, is a prominent example.
Grant S. Joseph, Sean Hixon, Colleen L. Seymour, Laurie R. Godfrey, Miguel Pedrono, Karen E. Samonds, Andrinajoro R. Rakotoarivelo, Brooke E. Crowley   +7 more
wiley   +1 more source

Process-based karst modelling to relate hydrodynamic and hydrochemical characteristics to system properties [PDF]

, 2013
More than 30% of Europe's land surface is made up of karst exposures. In some countries, water from karst aquifers constitutes almost half of the drinking water supply.
J. A. Barberá, A. Hartmann, T. Wagener, Barbera, J. A., N. Mizyed, Butscher, C., Wagener, T., F. Humer, Humer, F., C. Butscher, M. Kralik, A. Rimmer, B. Andreo, M. Weiler, Weiler, M., Rimmer, A., Andreo, B., J. Lange, Mizyed, N., Lange, J., Hartmann, A., Huggenberger, P., Kralik, M., P. Huggenberger, Lange, Jens, Hartmann, Andreas, Weiler, Markus   +26 more
core   +2 more sources

Study on the mechanism of water inrush disasters in overlying karst tunnels under damage-seepage coupling

河南理工大学学报. 自然科学版
ObjectivesTo analyze the impact of overlying karst caves on tunnels， this study investigates the law of water inrush disasters in overlying karst tunnels under damage-seepage coupling.MethodsBased on the Shuangbei Tunnel project in Chongqing， a rock mass
LIN Zhibin, LI Yahao, LIN Peizhong, ZHANG Boyang, YANG Dafang   +4 more
doaj   +1 more source

Caves and karsts of Northeast Africa

International Journal of Speleology, 2003
At least potentially karstifiable rocks cover much of the surface of Egypt and northern Libya. Study of caves and other karstic features of this region has been hampered by lack of roads, rapid disintegration of the surface of friable, poorly consolidated limestone, wind-blown sand and other factors.
openaire   +4 more sources

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

Deep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou, Xueqiu He, Zhenlei Li, Ping Wang, Dazhao Song, Fuxing Jiang, Shan Yin, Anliang Lü, Menghan Wei, Taoping Zhong   +9 more
wiley   +1 more source