Research on the model test system of shaft lining interacting with enclosure rock under deep and high water pressure

2011 ◽  
Author(s):  
Zhou Xiao-min ◽  
Ji Hong-guang ◽  
Deng Bing ◽  
Zhou Guo-qing ◽  
Liang Heng-hang
Keyword(s):  
Model Test ◽  
Water Pressure ◽  
High Water ◽  
Test System ◽  
Shaft Lining ◽  
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.

Model test of the tunnel subjected to high water pressure in Jinping Second Cascade Hydropower Station, China

2011 ◽  
Vol 54 (S1) ◽  
pp. 192-198 ◽  
Author(s):  
JianXiu Wang ◽  
Bo Feng ◽  
LiSheng Hu ◽  
PuZhuo Tian ◽  
DongChang Sui ◽  
...  
Keyword(s):  
Model Test ◽  
Water Pressure ◽  
High Water ◽  
Hydropower Station ◽  
High Water Pressure

Discussion on Structure Design of Shaft Lining Built in Porous Rocky Aquifer with High Water Pressure

2012 ◽  
Vol 446-449 ◽  
pp. 2196-2201
Author(s):  
Xiao Min Zhou ◽  
Bing Deng ◽  
Cheng Xuan Ma
Keyword(s):  
Water Pressure ◽  
High Water ◽  
Structure Design ◽  
Surrounding Rock ◽  
Porous Rock ◽  
Traditional Design ◽  
Universal Feature ◽  
Pressure Water ◽  
Shaft Lining ◽  
High Water Pressure

Firstly based on the practical problem of lining thickness built in porous rock aquifer with high water pressure, this paper introduce the mechanical and stable seepage model, and design formula of shaft lining named Baoshen; Secondly, the character of load and parameters in the “Baoshen” formula are studied, compared with the “Lame” formula and the original heavy earth field , which shows good universal feature to cover several traditional design methods. Thirdly, the principals of interaction among high pressure water, lining and surrounding rock are revealed by figure and discuss on inequality inequation; With a newly application example, the practical usage are introduced and newly viewpoints are opened to designers with material promotion, arrangement of re-bar or bolt, structure optimum etc.

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 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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