静力触探模型试验及机理分析  

The Mode Experiment and Analysis of the Mechanism in Static Penetration Test

作　　者：夏增明[1] 蒋崇伦 孙渝文 

机构地区：[1]长沙铁道学院土木工程系

出　　处：《长沙铁道学院学报》1990年第3期1-10,共10页Journal of Changsha Railway University

摘　　要：通过实测应力场揭示了静力触探的贯入机理,分析了自由表面效应、深度效应和层位界面效应的不同机理特性;论证了一定的 P_s 曲线反映出制约其形状变化的机理特征;获得了临界深度和 p_s 值与相对密度的相关曲线.为静力触探成果的判释和应用及研究贯入机理的数值模型提供了可靠依据.Through determining practical stress field,the penetrating mechanismof the Static Penetration Test is brought to light in this paper.Thedifferent properties of mechanism are analyzed for the free-surfaceeffect and the depth effect and the strata boundary effect;it isdemonstrated that a certain P_s curve reflects the feature of mecha-nism which restricts the change of its form;and the correlationcurves in which the critical depth and the Ps-Value correspondto the relative density are obtained.These provide reliable bases fordistinguishing and applying the CPT results and for studying thenumeral value mode of penetrating mechanism.

关 键 词：静力触探 自由表面效应 深度效应 

分 类 号：TU413[建筑科学—岩土工程]