Results 21 to 30 of about 158,678 (171)

Study on multi-field catastrophe evolution laws of water inrush from concealed karst cave in roadway excavation: a case of Jiyuan coal mine

open access: yesGeomatics, Natural Hazards & Risk, 2021
Coal is the major energy source in China. Many coal mines in Southwest China have arranged the excavation roadway system in the Maokou limestone in coal seam floor because of its special hydrogeological conditions.
Bo Li, Xianqing Wang, Zijie Liu, Tao Li
doaj   +1 more source

Discussions on the disciplinary system of modern karstology

open access: yesCarsologica Sinica, 2022
As an important part of modern earth science, karstology (karst science) has always been considered as a cross and marginal discipline between geology, geography, environmental science and ecology, but has not established its own independent discipline ...
Junbing PU
doaj   +1 more source

Advances in Hypogene Karst Studies National Cave & Karst Management Symposia NCKRI Symposia 1 [PDF]

open access: yes, 2022
Advances in Hypogene Karst Studies includes multiple examples of hypogene processes that demonstrate the variability and breadth of hypogene cave and karst systems with respect to speleogenetic evolution.
National Cave and Karst Research Institute
core  

Flow regime evolution of a major cave system in the Eastern Alps (Hirlatzhöhle, Dachstein)

open access: yesInternational Journal of Speleology, 2022
The 116 km-long and 1560 m-deep Hirlatzhöhle is one of the major cave systems in the Northern Calcareous Alps (NCA; Austria). It is located in the NW part of the Dachstein, an extensive karst massif encompassing 576 km² with its highest point at 2995 m a.
Lukas Plan   +5 more
doaj   +1 more source

GUA KIDANG, PILIHAN MANUSIA PRASEJARAH DI KAWASAN KARST BLORA

open access: yesBerkala Arkeologi, 2008
Blora karst area is a part of Rembang karst area on its northern and southern side of Kendeng Mountain. Geographically as well as geologically, Blora karst area is similar to Tuban karst area, but from archaeological aspect both areas show a significant ...
Indah Asikin Nurani   +1 more
doaj   +1 more source

Influence of Karst Caves on the Pile’s Bearing Characteristics-A Numerical Study

open access: yesFrontiers in Earth Science, 2022
Compared with the amount of research undertaken on vertical-bearing piles in karst areas, there are fewer studies on the stability of horizontal-bearing piles (e.g., anti-slide piles and supporting piles), and little in the way of theoretical ...
Jia-hui Liang, Qiu-yan Fan, Kuo Qin
doaj   +1 more source

Tunnel Concealed Karst Cave Joint Detection by Tunnel Seismic and Transient Electromagnetic

open access: yesLithosphere, 2022
The water-rich giant karst cave is the risk source of tunnel construction in the karst area. To reduce the risk of tunnel construction, it is necessary to accurately explore the spatial distribution range of the karst cave in the direction of advance and
Xinglin Lu   +5 more
doaj   +1 more source

Revealing drivers for the dynamic changes of dissolved organic matter in karst cave water through optical properties

open access: yesJournal of Hydrology: Regional Studies
Study Region: Mahuang Cave is located in Suiyang County, Zunyi City, Guizhou Province, Southwest China. It is a first-level branch cave of Shuanghe Cave(the longest dolomite cave worldwide).
Xiaoduo Wang   +8 more
doaj   +1 more source

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

open access: yesEnergies, 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
doaj   +1 more source

Impact analysis of karst caves on surrounding rock deformation-failure and water inrush in large-section tunnels

open access: yes河南理工大学学报. 自然科学版
ObjectivesTo analyze the influence of karst caves on the construction of large-section tunnels, and to investigate the deformation, failure, and water inrush characteristics of tunnel surrounding rock under various occurrence states of karst caves ...
Lin Zhibin   +4 more
doaj   +1 more source

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