Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Semi-cover excavation sequential construction city tunnel structure adjacent to subway and construction method
The invention discloses a semi-cover excavation sequential construction city tunnel structure adjacent to a subway and a construction method, and relates to the technical field of city tunnel engineering design and construction. Grout stop plates, pre-grouting pipes and track grouting pipes are located on the periphery of a pier and a bearing platform adjacent to the subway, the pre-grouting pipes are arranged in a single row, and the track grouting pipes are arranged in double rows; second top beams and semicircular piles are arranged at the tops of secant piles, and the second top beams are rigidly connected with a top plate; and first top beams are arranged at the tops of the semicircular piles and provided with embedded steel plates in butt joint with first steel supports on the inner side of a foundation pit, and retaining walls are arranged at the tops of the first top beams and higher than the ground. The structure has the advantages of being small in traffic relief pressure, high in pipeline recovery speed, high in foundation pit unearthing efficiency, low in construction risk, short in construction period, large in tunnel space and the like, and can be used for design and construction of tunnel structures below busy roads adjacent to subways.
本发明公开是关于一种紧邻地铁的半盖挖顺作城市隧道结构及施工方法，涉及城市隧道工程设计及施工技术领域。止浆板、预注浆管、跟踪注浆管位于紧邻地铁桥墩及承台四周，单排设置预注浆管，双排设置跟踪注浆管；咬合桩顶部设置第二冠梁及半圆桩，第二冠梁与顶板刚性连接；半圆桩顶部设置第一冠梁，第一冠梁在基坑内侧设置对接第一钢支撑的预埋钢板，第一冠梁顶部设置挡土墙，挡土墙高出地面。本发明具有交通疏解压力小、管线恢复速度快、基坑出土效率高、施工风险低、施工工期短、隧道空间大等优点，可用于紧邻地铁的繁忙道路下方隧道结构设计及施工。
Semi-cover excavation sequential construction city tunnel structure adjacent to subway and construction method
The invention discloses a semi-cover excavation sequential construction city tunnel structure adjacent to a subway and a construction method, and relates to the technical field of city tunnel engineering design and construction. Grout stop plates, pre-grouting pipes and track grouting pipes are located on the periphery of a pier and a bearing platform adjacent to the subway, the pre-grouting pipes are arranged in a single row, and the track grouting pipes are arranged in double rows; second top beams and semicircular piles are arranged at the tops of secant piles, and the second top beams are rigidly connected with a top plate; and first top beams are arranged at the tops of the semicircular piles and provided with embedded steel plates in butt joint with first steel supports on the inner side of a foundation pit, and retaining walls are arranged at the tops of the first top beams and higher than the ground. The structure has the advantages of being small in traffic relief pressure, high in pipeline recovery speed, high in foundation pit unearthing efficiency, low in construction risk, short in construction period, large in tunnel space and the like, and can be used for design and construction of tunnel structures below busy roads adjacent to subways.
本发明公开是关于一种紧邻地铁的半盖挖顺作城市隧道结构及施工方法，涉及城市隧道工程设计及施工技术领域。止浆板、预注浆管、跟踪注浆管位于紧邻地铁桥墩及承台四周，单排设置预注浆管，双排设置跟踪注浆管；咬合桩顶部设置第二冠梁及半圆桩，第二冠梁与顶板刚性连接；半圆桩顶部设置第一冠梁，第一冠梁在基坑内侧设置对接第一钢支撑的预埋钢板，第一冠梁顶部设置挡土墙，挡土墙高出地面。本发明具有交通疏解压力小、管线恢复速度快、基坑出土效率高、施工风险低、施工工期短、隧道空间大等优点，可用于紧邻地铁的繁忙道路下方隧道结构设计及施工。
Semi-cover excavation sequential construction city tunnel structure adjacent to subway and construction method
一种紧邻地铁的半盖挖顺作城市隧道结构及施工方法
FEI RUIZHEN (Autor:in) / ZHANG JIQING (Autor:in) / ZHANG HAOLIANG (Autor:in) / HOU JINGYU (Autor:in) / CAO CHUNBO (Autor:in) / JIAO XIANYUE (Autor:in) / ZHOU JITAO (Autor:in) / CHEN XINQIANG (Autor:in) / QI XUDONG (Autor:in) / HU QI (Autor:in)
29.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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