地基加固新工法-气压劈裂技术研究进展  

Research on pneumatic fracturing applicated to foundation treatment

作　　者：周建[1,2] 魏利闯 Zhou Jian;Wei Li-chuang(Coastal and urban Geotechnical Engineering Research Center,Zhejiang University,Hangzhou 310058,China;Zhejiang Urban Underground Space Development Engineering Research Center,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学滨海和城市岩土工程研究中心,浙江杭州310058 [2]浙江省城市地下空间开发工程技术研究中心,浙江杭州310058

出　　处：《地基处理》2019年第1期63-78,共16页Journal of Ground Improvement

摘　　要：气压劈裂技术能在土体中产生裂隙,增加土体渗透性,早期主要应用于污染场地修复工程,近年来逐渐应用到地基加固工程中,形成一种高效、经济的地基加固新工法。众多学者针对气压劈裂开展了广泛的研究,取得了一系列的成果,但尚未能满足实际工程设计要求。为将气压劈裂技术更好的应用到地基加固工程,本文分别从气压劈裂机理、气压劈裂裂隙扩展模型、气压劈裂监测技术三个方面总结了气压劈裂技术的发展历程和研究现状,指出并研究其现存问题,并讨论解决方案及该技术的发展前景。Pneumatic fracturing is the process of generation or extension of fractures thus enhancing permeability of soil.Pneumatic fracturing was concentrately applied in remediation of contaminated sites early and applied in foundation reinforcement engineering in recent years.Pneumatic fracturing has been an efficient and economical new method of foundation remfbrcement.Many scholars had carried out extensive research on pneumatic fracturing and achieved certain results,but had not yet reached the level of design in actual engineering.In order to better apply the pneumatic fracturing technology to the foundation reinforcement engineering,development history and research status of fracturing mechanism,fracturing propagation and monitoring technology of fracturing are reviewed in this paper.The existing problems are also pointed out and future prospects are proposed.

关 键 词：气压劈裂 劈裂机理 裂隙扩展模型 监测技术 

分 类 号：TU472[建筑科学—结构工程]