摘要
对土工格栅加筋膨胀土渠坡这种较新的膨胀土处理措施进行研究,在考虑土工格栅与填土之间的相互作用、膨胀土吸水膨胀、软化特性等膨胀土渠坡关键影响因素的基础上,提出了土工格栅加筋膨胀土渠坡数值计算的新思路,并采用有限差分软件Flac3D进行了验证。数值算例结果表明,土工格栅对膨胀土渠坡有明显的水平位移约束作用,是有效的处理措施,可以在实际工程中采用。
A new measure for canal slope of expansive soil which uses geogrid to strengthen expansive soil and expansive soil as backfill is studied. Base on the consideration of some key factors such as the interaction between geogrid and expansive soil,expansion which is caused by absorbing water and softening characteristics,a new way of calculation is presented for canal slope of expansive soil which is strengthened by geogrid,and this method is verified by FLAC3d. The result shows that geogrid can obviously restrict the horizontal displacement of canal slope of expansive soil,so it is an effective measure and can be applied to practical engineering.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2007年第S1期599-603,共5页
Rock and Soil Mechanics
基金
长江科学院博士启动基金(重点实验室No.22号)
