Full-floor Grouting Reinforcement for Working Faces with Large Mining Heights and High Water Pressure: a Case Study in China

2020 ◽  
Vol 39 (2) ◽  
pp. 268-279
Author(s):  
Shiqi Liu ◽  
Yu Fei ◽  
Yanchun Xu ◽  
Lei Huang ◽  
Wenyan Guo
Keyword(s):  
Water Pressure ◽  
High Water ◽  
Grouting Reinforcement ◽  
High Water Pressure

A reinforcement method of floor grouting in high-water pressure working face of coal mines: a case study in Luxi coal mine, North China

2022 ◽  
Vol 81 (1) ◽  
Author(s):  
Minglei Zhai ◽  
Haibo Bai ◽  
Luyuan Wu ◽  
Guangming Wu ◽  
Xianzhen Yan ◽  
...  
Keyword(s):  
Coal Mine ◽  
North China ◽  
Water Pressure ◽  
Coal Mines ◽  
High Water ◽  
Working Face ◽  
High Water Pressure

scholarly journals Case study on the application of shield TBM in the gravel layer with high water pressure underpassing the Han River

2016 ◽  
Vol 2 (43) ◽  
pp. 1536-1539
Author(s):  
Chang-soo. Kim ◽  
Jae-yoon. Kim ◽  
Soo-ho. Lee ◽  
Hyun. Cho ◽  
Dong-ahn. Hwang
Keyword(s):  
Water Pressure ◽  
High Water ◽  
Han River ◽  
Gravel Layer ◽  
High Water Pressure

scholarly journals Structural modifications of lanthanum silicate oxyapatite exposed to high water pressure

2017 ◽  
Vol 37 (5) ◽  
pp. 2149-2158 ◽  
Author(s):  
Aénor Pons ◽  
Emilie Béchade ◽  
Jenny Jouin ◽  
Maggy Colas ◽  
Pierre-Marie Geffroy ◽  
...  
Keyword(s):  
Water Pressure ◽  
High Water ◽  
Structural Modifications ◽  
Lanthanum Silicate ◽  
High Water Pressure

scholarly journals Analysis on Water Inrush Process of Tunnel with Large Buried Depth and High Water Pressure

Processes ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 134 ◽  
Author(s):  
Weimin Yang ◽  
Zhongdong Fang ◽  
Hao Wang ◽  
Liping Li ◽  
Shaoshuai Shi ◽  
...  
Keyword(s):  
High Pressure ◽  
Model Test ◽  
Water Pressure ◽  
Water Inrush ◽  
High Water ◽  
Surrounding Rock ◽  
Karst Cave ◽  
Tunnel Excavation ◽  
Pressure Water ◽  
High Water Pressure

In order to explore the catastrophic evolution process for karst cave water inrush in large buried depth and high water pressure tunnels, a model test system was developed, and a similar fluid–solid coupled material was found. A model of the catastrophic evolution of water inrush was developed based on the Xiema Tunnel, and the experimental section was simulated using the finite element method. By analyzing the interaction between groundwater and the surrounding rocks during tunnel excavation, the law of occurrence of water inrush disaster was summarized. The water inrush process of a karst cave containing high-pressure water was divided into three stages: the production of a water flowing fracture, the expansion of the water flowing fracture, and the connection of the water flowing fracture. The main cause of water inrush in karst caves is the penetration and weakening of high-pressure water on the surrounding rock. This effect is becoming more and more obvious as tunnel excavation progresses. The numerical simulation results showed that the outburst prevention thickness of the surrounding rock is 4.5 m, and that of the model test result is 5 m. Thus, the results of the two methods are relatively close to each other. This work is important for studying the impact of groundwater on underground engineering, and it is of great significance to avoid water inrush in tunnels.

scholarly journals Study on Water Sealing Mechanism of Earth Pressure Balanced Shield Subject to High Water Pressure.

1996 ◽  
pp. 189-198
Author(s):  
Akimasa Waku ◽  
Hideharu Miyazawa ◽  
Hiroshi Yoshino ◽  
Syunsuke Sakurai
Keyword(s):  
Water Pressure ◽  
Earth Pressure ◽  
High Water ◽  
Sealing Mechanism ◽  
High Water Pressure
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