江淮地区膨胀土土钉抗拔性能试验研究

The Jianghuai Area Inflation Earth Nail Anti-pulls out the Performance Test Research

膨胀土遇水膨胀、失水收缩等特性,将会对基坑(边坡)构成最直接的威胁,处理不当将会导致基坑的崩塌、边坡失稳等一系列工程问题.拟就江淮地区典型膨胀土进行室内土钉模型抗拔试验,得出土体在不同含水量、养护龄期和土钉浆液成分的极限抗拔力等数据,通过研究得出膨胀土土钉支护一些规律和膨胀土-土钉相互作用机理,为实际工程提供一定的指导意义.

The inflation earth meets the water to inflate,characteristics and so on dehydration contraction（side slope） will pose the most direct threat to the hole excavated for building foundation,processing improper will cause the hole excavated for building foundation the avalanche,the side slope jitter and so on a series of project question.This article carries on as to the Jianghuai Area model inflation earth the indoor earth dolley set anti-to pull out the experiment,obtains the different soil body water content,the maintenance stadium and the earth nail size ingredient limit anti-pulls out data and so on strength,obtains the inflation earth nail through the research to support and protect some rules and the inflation earth-nail interaction mechanism,provides certain guiding sense for the actual project.