土工织物加筋土的土压力减轻作用试验研究  

Experiment Study on Reduction of Earth Pressure in Geotextile Reinforced Soil

作　　者：廖红建[1] 钱春宇[1] 马洪宁[1] 赤石胜[2] 

机构地区：[1]西安交通大学,西安710049 [2]东海大学

出　　处：《工程勘察》2003年第3期1-3,66,共4页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金资助项目 (5 0 14 90 17)

摘　　要：通过在研制改进的固结试验仪上 ,进行一系列考虑土工织物埋置在土中不同位置时加筋土的单轴固结试验及三轴K0 固结试验和不排水剪切试验 ,从静止土压力系数的变化 ,探讨了土中埋置有土工织物的加筋土层的土压力减轻作用及剪切强度的增加作用。得出了土工织物的数量、放置形式和超固结比的不同对土压力变化的影响规律 。In order to evaluate the earth pressure at rest and the shearing strength characteristics of reinforced soils, a series of one\|dimensional consolidation tests, K 0 consolidation testes and undrained triaxial shear tests are performed by the improved consolidation apparatus.Experimental results show that the value of the coefficient of earth pressure at rest ( K\-0 ) of the reinforced soils changes with the number of geotextile, the planting forms of geotextile within the soil mass and the over consolidation ratio (OCR) of soils. The decrease of the K\-0 value and the increase of the shear strength are observed with the increase of geotextile amount. Some beneficial advice is given to study the slope stability of reinforced soils.

关 键 词：土工织物 加筋土 土压力 三轴固结试验 边坡 

分 类 号：TU432[建筑科学—岩土工程]