Results 21 to 30 of about 15,947 (239)

Hydrochemical characteristics and delimitation of sensitive protection area in the exposed area of Baimai spring group in Zhangqiu

open access: yesCarsologica Sinica, 2023
Zhangqiu is rich in spring resources, known as the "Little Spring City", and Baimai spring group is among the 72 famous springs in Jinan. In recent years, the flow of Baimai spring group has been cut off for many times, and the competent departments have
Yuxiang LIU   +5 more
doaj   +1 more source

Evaluation of human activity intensity in geological environment problems of Ji’nan City

open access: yesEuropean Journal of Remote Sensing, 2020
Human activity intensity evaluation is the basis of analyzing the impact of human activity on the region. With increasing scale and quantity of human activity, the impact on the ecological environment is also more and more serious.
Kai Peng   +3 more
doaj   +1 more source

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

open access: yesShuiwen 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   +5 more
doaj   +1 more source

Influence and repair of underground engineering construction on karst flow field

open access: yes地质科技通报, 2022
Engineering construction changes the groundwater flow field and endanger the safety of buildings. Taking the large-scale underground complex along Jinan Jingshi Road as an example, the impact of engineering construction on the groundwater seepage field ...
Liting Xing   +5 more
doaj   +1 more source

Sequence of studying engineering and geological conditions of mineral deposits from exploration to development

open access: yesIzvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal, 2020
geological environment. Actively change all the components of engineering-geological conditions (EGC), formed during the long geological time: the topography, structure of rocks, hydrogeological and permafrost conditions, are formed by geological processes and, at the same time on the surface of the Earth formed a new strata of man-made structures, and
Irina V. Abaturova   +4 more
openaire   +1 more source

Study on the zoning of karst development in the Jiaodong Peninsula: Take the Zhongqiao area of Yantai City as an example

open access: yesCarsologica Sinica, 2023
Karst is developed in all provinces of China. In Shandong Province, karst is mainly developed in its southwest part, and is sporadically distributed in the Jiaodong area.
Ning YANG   +6 more
doaj   +1 more source

Petrophysical Characterization and Gas Accumulation of Wufeng-Longmaxi Shale Reservoir in Eastern Margin of Sichuan Basin, SW China

open access: yesGeofluids, 2022
Shale gas plays a significant role in meeting the increasing demand of energy resources, which enables the exploration and exploitation of gas from shale reservoir to be emphasized gradually.
Wei Wang   +10 more
doaj   +1 more source

Design and flow field analysis of impregnated diamond bit for seafloor drill in soft-hard interlaced strata

open access: yesJournal of Engineering and Applied Science, 2022
According to the seafloor drill working conditions and the complex formation characteristics of the seafloor, this paper aims to improve the adaptability of the diamond bit to the formation and the coring quality.
Jialiang Wang   +6 more
doaj   +1 more source

Structural deformation characteristics and its influence on shale gas preservation of the Wufeng−Longmaxi Formation in the Wuxi area, Chongqing, China

open access: yesFrontiers in Earth Science, 2023
The Upper Ordovician Wufeng to Lower Silurian Longmaxi Formation has a good material basis for marine shale gas development, and the structural preservation condition is the key factor to control the rich and integrated shale gas reservoirs in the Wuxi ...
Wei Li   +20 more
doaj   +1 more source

Numerical Simulation of Artificial Recharge Groundwater Effect on Overlying Soft Clay Compression Control

open access: yesAdvances in Civil Engineering, 2023
Soil deformation is prone to occur in the process of the foundation pit dewatering. A large number of metro existing tunnels are located in soft soil layers. The compression of soft soil poses a threat to metro existing tunnels.
Chenghua Xu   +4 more
doaj   +1 more source

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