典型文献
Comparative analysis of deformation and failure mechanisms of underground powerhouses on the left and right banks of Baihetan hydropower station
文献摘要:
The stability of the surrounding rocks of large underground powerhouses is always emphasized during the construction process,especially in large-scale underground projects under construction,such as the Baihetan hydropower station in China.According to field investigations,numerical simulations and monitoring data analysis,we present a comparative analysis of the deformation and failure character-istics of the surrounding rocks of underground powerhouses on the left and right banks of the Baihetan hydropower station.The failure characteristics and deformation magnitude of the underground pow-erhouses on the left and right banks are quite different.Under the disadvantageous condition where the maximum principal stress intersects the axis of the powerhouse at a large angle,the left bank under-ground powerhouse shows prominent stress-controlled failure characteristics such as spalling,slack collapse and concrete cracking.Although the maximum principal stress is in the favorable condition which intersects the right bank powerhouse at a small angle,the relatively high intermediate principal stress with an angle subvertical to the right bank powerhouse plays an essential role in its deformation and failure,indicating that the influence of high intermediate principal stress cannot be ignored.In addition,structural plane-controlled failure and large deformation are also more evident on the right bank due to the extensive distribution of weak structural planes and complex surrounding rock properties.
文献关键词:
中图分类号:
作者姓名:
Anchi Shi;Congjiang Li;Wangbing Hong;Gongda Lu;Jiawen Zhou;Haibo Li
作者机构:
PowerChina Huadong Engineering Corporation Limited,Hangzhou,China;State Key Laboratory of Hydraulics and Mountain River Engineering,Sichuan University,Chengdu,610065,China;College of Water Resource and Hydropower,Sichuan University,Chengdu,610065,China
文献出处:
引用格式:
[1]Anchi Shi;Congjiang Li;Wangbing Hong;Gongda Lu;Jiawen Zhou;Haibo Li-.Comparative analysis of deformation and failure mechanisms of underground powerhouses on the left and right banks of Baihetan hydropower station)[J].岩石力学与岩土工程学报(英文版),2022(03):731-745
A类:
powerhouses,erhouses,subvertical
B类:
Comparative,analysis,deformation,failure,mechanisms,underground,left,right,banks,Baihetan,hydropower,station,stability,surrounding,rocks,large,always,emphasized,during,construction,process,especially,scale,projects,such,China,According,field,investigations,numerical,simulations,monitoring,data,present,comparative,characteristics,magnitude,are,quite,different,Under,disadvantageous,condition,where,maximum,principal,stress,intersects,axis,angle,shows,prominent,controlled,spalling,slack,collapse,concrete,cracking,Although,favorable,which,small,relatively,high,intermediate,plays,essential,role,its,indicating,that,influence,cannot,be,ignored,In,addition,structural,also,more,evident,due,extensive,distribution,weak,planes,complex,properties
AB值:
0.413912
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