爆破挤淤加固潮间带路基原位深层水平位移现场测试分析  

Field Tests and Analysis of In-Situ Deep Horizontal Displacement in Intertidal Soft Soils Strengthened by Blasting Replacement Method

作　　者：颜厥福 俞涵 潘朝昊 秦伟 张留俊[4] 陈奋坚 裘友强 YAN Juefu;YU Han;PAN Chaohao;QIN Wei;ZHANG Liujun;CHEN Fenjian;QIU Youqiang(Xiapu County New Land Transportation Investment Co.Ltd.,Ningde 355100;Zhejiang Communications Construction Group Co.Ltd.,Hangzhou,310051;Key Laboratory of Engineering and Technology for Soft Soil Foundation and Tideland Reclamation,Wenzhou University,Wenzhou 325035;CCCC First Highway Consultants Co.Ltd.,Xi’an 710075;Jiangsu Southeast Engineering Consul Ting Co.Ltd.,Nanjing 210018)

机构地区：[1]霞浦县新陆交通投资有限公司,福建宁德355100 [2]浙江交工集团股份有限公司,杭州310051 [3]温州大学浙江省软弱土地基与海涂围垦工程技术重点实验室,浙江温州325035 [4]中交第一公路勘察设计研究院有限公司,西安710075 [5]江苏东南工程咨询有限公司,南京210018

出　　处：《土工基础》2023年第5期807-810,共4页Soil Engineering and Foundation

基　　金：浙江省公益技术应用研究项目(LGF22E080011);温州市基础性科研项目(S20210005);浙江省教育厅一般项目(Y202044146);浙江省教育厅专硕项目(Y202146757,Y202248922);温州大学硕士研究生创新基金项目(No.316202002070)。

摘　　要：爆破挤淤法是一种处理效率高、造价低、处理效果好的软土地基处理方法,常用来处理深厚淤泥质土,其主要施工方式按照炸药埋置位置划分可分为侧爆施工和端头爆施工。对于爆破挤淤法施工效果的评价,其评价爆破挤淤爆破效果最直接的指标就是抛填石的落底深度,为了检测潮间带深厚淤泥层爆破挤淤抛填石效果,依托宁德市某爆破挤淤项目,开展深层水平位移长期监测,分析路基长期水平位移变化,对比侧爆施工段和端头爆施工段的路基水平位移变化,并与对应位置的路基长期竖向沉降联合对比,可以为类似工程提供参考。Blasting replacement method is a soft soil improvement method with high efficiency,low construction cost and satisfactory treatment effect.Its main construction methods can be divided into side explosion and end explosion according to the position of explosives buried.The most effective evaluation of the blasting replacement application is the measurement of the depth of the riprap rock that are brought into the soft soil by the explosion.In order to detect the intertidal zone and depth of the riprap into the soil,in this paper,based on some blasting replacement projects in the Ningde City,the deep horizontal displacement monitoring was performed for a long time.The results of the side and end the horizontal displacement of blasting replacement projects are also compared with the settlement of the above highway embankemnts.It provides reference for similar projects.

关 键 词：测斜观测 原位观测 爆破挤淤 潮间带 

分 类 号：TU433[建筑科学—岩土工程]