现浇大截面管廊三联拱暗挖施工技术  

DISCUSSION ON CONSTRUCTION TECHNOLOGY OF CAST-IN-SITU LARGE SECTION PIPE GALLERY TRIPLE ARCH CONCEALED EXCAVATION

作　　者：刘艳君 施鹏程 Liu Yan-jun;Shi Peng-cheng

机构地区：[1]中建二局第三建筑工程有限公司,北京100070

出　　处：《建筑技术开发》2022年第19期93-96,共4页Building Technology Development

基　　金：现浇管廊下穿现有构筑物施工技术研究与应用(CSCEC2b3c-2021-K-58)。

摘　　要：石家庄正定新区综合管廊太行大街路口段,管廊需下穿正在运营的管廊结构,从施工可行性、成本、工期等方面综合考虑,管廊采用三联拱暗挖施工技术。通过介绍明暗挖管廊交接处土体支护、穿越砂层暗挖、明暗挖管廊连接等技术,为管廊穿越已有构筑物、大断面暗挖结构的施工提供借鉴。In the intersection section of Taihang street of the comprehensive pipe gallery in Zhengding new area,Shijiazhuang,the pipe gallery needs to pass through the operating pipe gallery structure.Considering the construction feasibility,cost and construction period,the pipe gallery adopts the triple arch concealed excavation construction technology.This paper introduces the soil support at the junction of open and concealed excavation pipe gallery,concealed excavation through sand layer and connection of open and concealed excavation pipe gallery,so as to provide reference for the construction of pipe gallery crossing existing structures and large section concealed excavation structures.

关 键 词：地下综合管廊 暗挖 三联拱 穿越砂层 深孔注浆 

分 类 号：TU74[建筑科学—建筑技术科学]