铁道标准设计2017，Vol.61Issue(12)：1-5,5.DOI:10.13238/j.issn.1004-2954.2017.12.001
石灰桩融化岛状多年冻土的试验研究
Experimental Study on the Lime Pile Thawing Island Permafrost
摘要
Abstract
Aiming at the problems of new existing constructions foundation stability during the expansion project in island permafrost area,prethawing technique is employed based on exothermic effect generated by the reaction of quicklime with water to melt the permafrost and consolidate settlement to enhance the bearing capacity of the foundation soil.The paper,on the basis of collecting home and abroad methods of dealing with island permafrost engineering and the effect of lime pile in the treatment of foundation,conducts the study on indoor model tests of lime pile prethawing permafrost and identifies the materials,mixing ratio and construction techniques suitable for the lime pile in melting high temperature island permafrost and enhance foundation bearing capacity.The effect of its application is assessed to come up with a complete set of lime pile prethawing techniques.关键词
石灰桩/岛状冻土/预融技术/模型试验Key words
Lime pile/Island permafrost/Prethawing technique/Model test分类
交通工程引用本文复制引用
金兰,程佳,孟进宝,赵相卿,江凯,王兴..石灰桩融化岛状多年冻土的试验研究[J].铁道标准设计,2017,61(12):1-5,5.基金项目
国家自然科学基金项目(51278425,51178400) （51278425,51178400）
中国铁路总公司科技研发课题(2014G004-H) （2014G004-H）
中国中铁股份有限公司科技开发计划(2016-重大-01) （2016-重大-01）
中铁科研院科技开发计划项目(石灰桩预融技术在岛状多年冻土区的应用研究) （石灰桩预融技术在岛状多年冻土区的应用研究）
中铁二院科研项目(2015-中俄-6) （2015-中俄-6）
