Results 61 to 70 of about 521,250 (248)

Characteristic of Lang Son Karst Poljes in Vietnam and Geohazards

Iraqi Geological Journal, 2022
In the karst regions of Vietnam, there are many different terrains. The most important one is karst polje. Because there are a lot of residential areas and important economic regions.
Huynh Phu, Le Canh Tuan, Nguyen Ly Ngoc Thao, Huynh Thi Ngoc Han, Cao Minh Thuy   +4 more
doaj   +1 more source

Iron Age to Medieval entomogamous vegetation and Rhinolophus hipposideros roost in south-eastern Wales (UK) [PDF]

, 2006
Karst cave systems are well developed in Wales (UK) and, in some instances, constitute important bat roosts. Ogof Draenen, near Blaenavon in south-east Wales, is the most recent major cave discovery (1994) with already > 70 km of passages explored ...
Bronk, Bui-Thi, Camacho, Carbonnel, Carbonnel, Carrión, Chambers, Chambers, Coles, Herrera, Jegla, Maher, Maher, Michael J. Simms, Pendleton, Proctor, Rosen, Simms, Simms, Smith, Stuiver, Suzanne A.G. Leroy, Vaughan, Waltham, Warren   +24 more
core   +1 more source

Subterranean glacial spillways: an example from the karst of South Wales, UK [PDF]

, 2013
Many karst areas in the UK have been glaciated one or more times during the last 0.5 Ma, yet there are few documented examples of caves in these regions being affected by glacial processes other than erosion.
Farrant, Andrew R., Noble, Stephen R., Simms, Michael J.   +2 more
core  

Urban Evolution: The Role of Water [PDF]

, 2015
The structure, function, and services of urban ecosystems evolve over time scales from seconds to centuries as Earth’s population grows, infrastructure ages, and sociopolitical values alter them.
Belt, Kenneth T., Kaushal, Sujay S., Mayer, Paul M., McDowell, William H., Newcomer Johnson, Tamara A., Pennino, Michael J., Wollheim, Wilfred M.   +6 more
core   +3 more sources

Formation process of cover collapse sinkholes related to groundwater level decline in karst areas

Journal of Mountain Science
The decline in groundwater level is a key factor contributing to cover collapse in karst areas. In this study, the model tests and numerical simulations are conducted to reveal the breeding process and formation mechanism of cover collapse sinkholes ...
Xingzong Liu, Hongkai Chen, Bin Gong, Guanghui Jiang, Jintao Wang   +4 more
semanticscholar   +1 more source

Mechanism analysis of karst ground collapse caused by the construction of punching piles in Fuwan, Foshan City

Carsologica Sinica
In recent years, the increasing intensity of human engineering activities—such as groundwater extraction, drainage for underground engineering, mine drainage, blasting, pile foundation construction and drilling engineering—has led to karst ground ...
Shouyong YI, Long JIA, Qingding HAN, Xiyi LUO, Jie ZOU   +4 more
doaj   +1 more source

Typical Methods for Forecasting Karst Collapse in China

Full Proceedings of the Thirteenth Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, 2013
pg(s) 239 ...
Meng, Yan, Dai, Jianling, Jia, Long, Lei, Mingtang, Ji, Feng   +4 more
openaire   +3 more sources

A Study on Karst Cave Collapse Based on Improved Terzaghi Theory and Upper Limit Analysis

Applied Sciences
Karst areas exhibit intricate geological attributes, and the geological and environmental issues caused by urban development cannot be ignored, especially the issue of karst surface collapses.
Wei Yan, Ruixiao Liu, Shugao Tian, Fei Tan, Hao Wen, Jiahe Lv   +5 more
semanticscholar   +1 more source

Determining the Seepage Stability of Fractured Coal Rock in the Karst Collapse Pillar

, 2020
The karst collapse pillar (KCP) is a common geological structure in the coal mines of northern China. KCPs contain many fractured coal rocks, which can easily migrate under the action of high-pressure water.
Tianjun Zhang, M. Pang, Xiufeng Zhang, H. Pan   +3 more
semanticscholar   +1 more source

Rapid Profiling of Marine Notches Using a Handheld Laser Distance Meter [PDF]

, 2012
A rapid, single-user profiling method for rocky shores is described. The Leica Disto D8 handheld laser distance meter measures distance up to 100 m and inclination in 360 degrees.
Andrade F., Delgado I., Focke J. M., Krause G., Kázmér M., Pirazzoli P. A., Puleo J. A., Swantesson J. O. H.   +7 more
core   +1 more source