Results 51 to 60 of about 521,250 (248)

Fractal mechanical model of variable mass seepage in karst collapse column of mine

open access: yesThe Physics of Fluids
Currently, the study of karst collapse column water inrush mechanism often ignores the effect of pore structure, and the traditional fractal seepage model ignores the effect of nonlinear seepage velocity field on model permeability.
Yang Liu   +5 more
semanticscholar   +1 more source

Analysis on the hydraulic connection and medium characteristics between tunnels and karst springs by tracer tests: A case study of Guanshan tunnel

open access: yesCarsologica Sinica
In engineering construction, preventing geological disasters is crucial for protecting people's property and safety. Water inrush and mud gushing in tunnel construction are common engineering hazards in China, leading to severe consequences like ...
Shasha YAO   +6 more
doaj   +1 more source

Karst, GIS and geological hazard planning and management in Great Britain [PDF]

open access: yes, 2010
The British Geological Survey (BGS) database of karst features for the United Kingdom include dolines, cave entrances, stream sinks, resurgences and building damage; data for approximately half of the country has so far been gathered.
Cooper, A.H., Farrant, A.R., Price, S.J.
core  

Compound Karst Cave Treatment and Waterproofing Strategy for EPB Shield Tunnelling in Karst Areas: A Case Study

open access: yesFrontiers in Earth Science, 2021
There is high risk of water inrush and ground collapse accidents when tunnelling in karst areas. Based on the case study of an urban metro tunnel, this paper focuses on karst cave treatment and waterproofing strategies for earth pressure balancing (EPB ...
Yongshui Kang   +8 more
doaj   +1 more source

Study on risk assessment method of Karst collapse—Taking the Karst collapse in Linyi urban areas as an example

open access: yesIOP 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
openaire   +1 more source

Simulation of rock salt dissolution and its impact on land subsidence [PDF]

open access: yes, 2013
Extensive land subsidence can occur due to subsurface dissolution of evaporites such as halite and gypsum. This paper explores techniques to simulate the salt dissolution forming an intrastratal karst, which is embedded in a sequence of carbonates, marls,
Huggenberger, P.   +3 more
core   +2 more sources

Groundwater Mixing Process Identification in Deep Mines Based on Hydrogeochemical Property Analysis

open access: yesApplied Sciences, 2016
Karst collapse columns, as a potential water passageway for mine water inrush, are always considered a critical problem for the development of deep mining techniques.
Bo Liu, Reza Malekian, Jinpeng Xu
doaj   +1 more source

Misconceptions About Caves and Karst: Common Problems and Educational Solutions [PDF]

open access: yes, 2007
Provides pedagogical insight concerning learners' pre-conceptions and misconceptions about groundwater, caves, karst The resource being annotated is: http://www.dlese.org/dds/catalog_DLESE-000-000-010-102 ...
Lamont-Doherty Earth Observatory, Columbia University
core  

Model tests of geotextile in collapse treatment of karst subgrade

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract Subgrade collapse is widespread in karst areas of south China, which is easily causing economic losses and casualties. Compared with the traditional treatment methods, using geotextile has obvious advantages in treating the subgrade after karst collapse.
Di Wu, Chen Luo, Jianjian Wu
openaire   +1 more source

Risk zoning assessment of karst ground collapse in Huadu District, Guangzhou based on a comprehensive index method

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao
With the intensification of human engineering activities, the incidence of karst ground collapse in Huadu District, Guangzhou has been increased annually. Therefore, it is crucial to conduct a risk zoning assessment of karst ground collapse. Based on the
Xiaoming WANG, Tao LIU, Zhanpeng YI
doaj   +1 more source

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