水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2012年
6期
128-132
,共5页
修正剑桥模型%真空预压%不排水抗剪强度%临界状态土力学%软粘土
脩正劍橋模型%真空預壓%不排水抗剪彊度%臨界狀態土力學%軟粘土
수정검교모형%진공예압%불배수항전강도%림계상태토역학%연점토
modified Cam-clay model%vacuum preloading%undrained shear strength%critical state soil mechanics%soft clay
基于修正剑桥模型里的临界状态模型,用临界状态来描述土体的不排水剪切强度,利用现场实测数据反推不排水剪切强度公式中三个参数的值,可以得到三轴条件下不排水剪切强度的理论公式。并且通过现有的现场实测数据考察了该不排水剪切强度公式的合理性,计算结果与现场实测数据基本吻合,验证了本文提出的公式能够较好地预测基于临界状态模型的不排水抗剪强度。即适用于温州工程现场区域土体性质的不排水抗剪强度的计算公式,可在类似工程中推广与应用。
基于脩正劍橋模型裏的臨界狀態模型,用臨界狀態來描述土體的不排水剪切彊度,利用現場實測數據反推不排水剪切彊度公式中三箇參數的值,可以得到三軸條件下不排水剪切彊度的理論公式。併且通過現有的現場實測數據攷察瞭該不排水剪切彊度公式的閤理性,計算結果與現場實測數據基本吻閤,驗證瞭本文提齣的公式能夠較好地預測基于臨界狀態模型的不排水抗剪彊度。即適用于溫州工程現場區域土體性質的不排水抗剪彊度的計算公式,可在類似工程中推廣與應用。
기우수정검교모형리적림계상태모형,용림계상태래묘술토체적불배수전절강도,이용현장실측수거반추불배수전절강도공식중삼개삼수적치,가이득도삼축조건하불배수전절강도적이론공식。병차통과현유적현장실측수거고찰료해불배수전절강도공식적합이성,계산결과여현장실측수거기본문합,험증료본문제출적공식능구교호지예측기우림계상태모형적불배수항전강도。즉괄용우온주공정현장구역토체성질적불배수항전강도적계산공식,가재유사공정중추엄여응용。
Based on the critical state model in the modified Cam-clay model,the undrained shear strength of soil is described here with critical state,the field test data are used for the back analysis of the parameters,and the theoretical formula of the undrained shear strength of the soil under triaxial condition could be obtained,then the accuracy of the theoretical formula is verified with existing field test data.The calculation results are basically consistent with the field test data,verifying that the proposed theoretical formula could better predict the undrained shear strength based on the critical state model.That is,the theoretical formula of the undrained shear strength applied to Wenzhou's project could be promoted and applied in similar projects.
