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《Port Engineering Technology》 2009-03
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Dicussion on Calculation of Soil Nailing Design for Foundation Pit

Sun Yuzhuo1,Liu Fuchen1,Cheng Yingchang2,Zhang Wei1(1.Shandong Water Polytechnic,Rizhao Shandong 276826,China;2.Rizhao Zhonghao Designed building Co.,Ltd.,Rizhao Shandong 276826,China)  
There are many problems such as the applied condition of calculation formula being not clear and unreasonable in the calculation of soil nailing design for excavation,which may cause the unnecessary waste and the safty hidden dangers.Aiming at the relative regulation of Technical Specification for Retaining and Protection of Building Foundation Excavations of JGJ 120—99,the problems existing in the calculation of standard value of horizontal load,the cracked angle and soil nailing length are discussed.The common used calculation formula for the cracked angle and free length are derived.It is shown by the example that the design of soil nailing applying the formula is reasonable,safe and reliable as well as simple and convienient.
【CateGory Index】: TU753.8
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