Abstract：Research purposes: This paper discusses the calculating methods, infection fetor and indoor test progress of Still-lateral-pressure-coefficient K_0，to put forward the suggestion of mensuration and applicable experience formula of Tianjin shallow layer sail〖 K〗_0.
Research methods: This paper introduces the kinds of K_0 calculating methods, and analyzes the influence factor, question in test and lots of experimentation data to receive the Tianjin shallow layer soil K_0 rule.
Research results: This paper puts forward the experience formula ofK_0 which is agreement with Tianjin shallow layer soil, and the suggestion of indoor test mensuration.
Research conclusions: Indoor K_0 instrument is easy manipulation and test convenience. In order to ensure the experimentation data reliability and reduce the system error, which avoid the lateral press scattering and assure the instrument airproof is necessary. On the emergency，lacking of test condition, we can use this recursive experience formula to estimate the Tianjin shalIow layer soil K_0.
李晓萍,赵亚品. 静止侧压力系数及其试验方法的探讨[J]. 铁道工程学报, 2007, 24(8): 20-22.
LI Xiao-Ping, ZHAO Ya-Pin. Discussion on the Still Lateral Pressure Coefficient and Testing Method. 铁道工程学报, 2007, 24(8): 20-22.
2007, Vol. 24 
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