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《Chinese Journal of Underground Space and Engineering》 2010-02
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Investigation into the Earth Pressure within Soil Nailing Walls

Yang Yuwen(Wuhan Geotechnical Engineering and Survey Institute,Wuhan 430022,China)  
The shotcrete facing of soil nailing walls is often assumed to be imposed on by the Rankine's active pressure,but its thickness tends to be designed almost too thin to bear such a big pressure,so the assumed condition is inconsistent with that of the facing in design.By the numerical experiments in deep excavation as well as case studies,the pressure imposed on the facing of soil nailing walls and soil stresses during excavation are explored and estimated in this paper.The analytical results indicate that the lateral earth pressure is the facing subjected to much less than the value determined by Rankine's theory.Its earth-retaining function could be very limited and even neglected.It is recommended that in the provisional engineering such as deep excavation,the flexible waterproof material,for example,canvas,should substitute for the conventional facing layer of steel net plus shotcrete in soil nailing walls to save money and to avoid the side effects on underground space while the functions of the facing layer are still kept.
【CateGory Index】: TU476
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 Yang Yuwen et al.;Analysis on Ultimate Equilibrium of Earth Nail Bracing during Deep Foundation pit Excavation[J];GEOTICHNICAL INVESTIGATION AND SURVEYING;1998-06
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
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1 LIU Hangjia WANG Wenqing ZHOU Qingyun (Hubei Institute of Hydrological and Engineering Geological Investigation,Jingzhou,Hubei 434100);APPLICATION OF SLOPE ENFORCEMENT IN GEOHAZARD PREVENTION IN TGR REGION[A];[C];2005
2 Yao Hailin,An Junyong,Wang Xinping (Institute of Rock and Soil Mechanics,The Chinese Academy of Sciences,Wuhan 430071 China);STABILITY ANALYSIS AND REINFORCEMENT OF A SLOPE IN A BUILDING SITE[A];[C];2000
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【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 Chen Zhaoyuan et.al.;Soil Nailing for Deep Excavation. Part 2 Working Performances[J];;1996-01
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