装配式柔性面层土钉墙支护结构体系研究  

RESEARCH ON SOIL NAIL WALL SUPPORT STRUCTURE SYSTEM OF ASSEMBLY FLEXIBLE SURFACE

作　　者：刘军 宋晔 张建全 牛大伟 柳颂丹 LIU Jun;SONG Ye;ZHANG Jian-quan;NIU Da-wei;LIU Song-dan(Beijing University of civil Engineering and Architecture,College of Civil and Traffic Engineering,100044,Beijing,China;Beijing Urban Construction Geotechnical and Design Institute Limited Company,100176,Beijing,China;Beijing Geotechnical Engineering Association,100005,Beijing,China)

机构地区：[1]北京建筑大学土木与交通工程学院,北京100044 [2]北京城建勘测设计院有限责任公司,北京100176 [3]北京岩土工程协会,北京100005

出　　处：《建筑技术》2022年第5期565-568,共4页Architecture Technology

基　　金：北京市自然基金-北京市教委联合资助重点项目(KZ201810016021);北京建筑大学北京未来城市设计高精尖创新中心(UDC2019032824)。

摘　　要：研发新型土钉墙替代传统土钉墙是当今基坑支护的发展方向。本文就一种装配式可回收柔性面层土钉墙支护体系理念进行了深入研究,对其构造组成及施工工艺进行了详细阐述,并通过三维数值模拟进行强度折减计算,综合研究结果得出最优土钉间距为1.5 m。根据最优土钉间距下的三维数值模拟结果表明,此种装配式可回收柔性面层土钉墙可达到维护土体稳定的效果,对推进此种装配式柔性面层土钉墙的发展具有积极的意义。It is a development trend of foundation pit support to develop new type of soil nail wall to replace traditional soil nail wall.This paper carried out in-depth research on the soil nail wall support system of assembly recyclable flexible surface,introduced in details its structure and construction process and used 3D numerical simulation for strength reduction calculation.It was found that the best space among soil nails is 1.5 m.The 3D numerical simulation result under the best soil nail spacing showed that this assembly recyclable flexible surface soil nail wall could keep the soil stable and is worthy to be promoted.

关 键 词：土钉墙 支护结构 装配式 数值模拟 

分 类 号：TU74[建筑科学—建筑技术科学]