土工织物加筋土三轴试验研究  

Triaxial Test and Study on Geotextile Reinforced Sand

作　　者：王俊林[1] 赵冬花 李竞克 马艳[1] 

机构地区：[1]郑州大学环境与水利学院,河南郑州450002 [2]周口市建设工程质量安全监督站,河南周口466000 [3]河南省建筑职工大学,河南郑州450001

出　　处：《人民黄河》2007年第5期52-53,共2页Yellow River

基　　金：河南省科技攻关项目(0624250008)

摘　　要：在常规剪切仪上进行了砂土及加筋砂土的三轴排水试验,确定了Duncan-Zhang非线性模型计算参数,探讨了加筋砂土的强度特性及作用机理。试验结果表明:加筋土应力-应变具有非线性关系;加筋土抗剪强度指标随加筋层数的增大而增大;土工织物在小应变时所起的作用较小,大应变时作用明显。It conducts triaxial drainage tests of sand and reinforced sand on the routine shear instrument,decides computational parameters of Duncan-Zhang nonlinear model and approaches the characteristic of intensity and mechanism of function of reinforced sand.The outcomes show that the stress-strain of reinforced sand has nonlinear relations;the shearing resistance index of reinforced sand increases along with the increase of reinforced layer and;the function of geotextile is smaller as the strain is small and remarkable function as the strain is great.

关 键 词：土工织物 加筋土 三轴试验 

分 类 号：TV443.9[水利工程—水工结构工程]