Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Soft and weak water-rich stratum subway foundation pit reinforced digging method based on half-covered digging method
The invention discloses a soft and weak water-rich stratum subway foundation pit reinforced digging method based on a half-covered digging method. The reinforced digging method includes the followingsteps of firstly, performing the reinforcing construction of a right half foundation pit soil body, and alternately performing the reinforcing of underground continuous wall groove walls and the reinforcing of the foundation pit passive zone; secondly, constructing a right side underground continuous wall; thirdly, constructing temporary stand columns; fourthly, paving a temporary ground; fifthly,performing the reinforcing construction of a left half foundation pit soil body; sixthly, constructing a left side underground continuous wall; seventhly, constructing a dewatering well; eighthly, erecting a first transverse support of a left half foundation pit; ninthly, performing dewatering on the foundation pit; tenthly, digging the foundation pit and reinforcing the stand columns; and eleventhly, constructing a subway station structure bottom plate. The method is simple in process, the construction risk of the soft and weak water-rich stratum half-covered dug subway foundation pit can bereduced, machines can conveniently perform digging in the pit, work efficiency is improved, and the method is particularly suitable for a soft and weak water-rich soil layer subway station standard section foundation pit project under complicated urban traffic environment conditions.
本发明公开了一种基于半盖挖法的软弱富水地层地铁基坑加固开挖方法，包括以下步骤：步骤1、右半幅基坑土体加固施工，交叉进行地下连续墙槽壁加固和基坑被动区加固；步骤2、右侧地下连续墙施工；步骤3、临时立柱施工；步骤4、临时地面铺设；步骤5、左半幅基坑土体加固施工；步骤6、左侧地下连续墙施工；步骤7、降水井施工；步骤8、左半幅基坑第一道横向支撑架设；步骤9、基坑降水；步骤10、基坑开挖与立柱加固；步骤11、施工地铁车站结构底板。本发明工艺简单，可降低软弱富水地层半盖挖地铁基坑施工风险，方便机械坑内开挖，提高了工作效率，特别适用于复杂城市交通环境条件下软弱富水土层地铁车站标准段基坑工程。
Soft and weak water-rich stratum subway foundation pit reinforced digging method based on half-covered digging method
The invention discloses a soft and weak water-rich stratum subway foundation pit reinforced digging method based on a half-covered digging method. The reinforced digging method includes the followingsteps of firstly, performing the reinforcing construction of a right half foundation pit soil body, and alternately performing the reinforcing of underground continuous wall groove walls and the reinforcing of the foundation pit passive zone; secondly, constructing a right side underground continuous wall; thirdly, constructing temporary stand columns; fourthly, paving a temporary ground; fifthly,performing the reinforcing construction of a left half foundation pit soil body; sixthly, constructing a left side underground continuous wall; seventhly, constructing a dewatering well; eighthly, erecting a first transverse support of a left half foundation pit; ninthly, performing dewatering on the foundation pit; tenthly, digging the foundation pit and reinforcing the stand columns; and eleventhly, constructing a subway station structure bottom plate. The method is simple in process, the construction risk of the soft and weak water-rich stratum half-covered dug subway foundation pit can bereduced, machines can conveniently perform digging in the pit, work efficiency is improved, and the method is particularly suitable for a soft and weak water-rich soil layer subway station standard section foundation pit project under complicated urban traffic environment conditions.
本发明公开了一种基于半盖挖法的软弱富水地层地铁基坑加固开挖方法，包括以下步骤：步骤1、右半幅基坑土体加固施工，交叉进行地下连续墙槽壁加固和基坑被动区加固；步骤2、右侧地下连续墙施工；步骤3、临时立柱施工；步骤4、临时地面铺设；步骤5、左半幅基坑土体加固施工；步骤6、左侧地下连续墙施工；步骤7、降水井施工；步骤8、左半幅基坑第一道横向支撑架设；步骤9、基坑降水；步骤10、基坑开挖与立柱加固；步骤11、施工地铁车站结构底板。本发明工艺简单，可降低软弱富水地层半盖挖地铁基坑施工风险，方便机械坑内开挖，提高了工作效率，特别适用于复杂城市交通环境条件下软弱富水土层地铁车站标准段基坑工程。
Soft and weak water-rich stratum subway foundation pit reinforced digging method based on half-covered digging method
基于半盖挖法的软弱富水地层地铁基坑加固开挖方法
WANG QIYUN (Autor:in) / XIAO NANXIONG (Autor:in) / ZHANG BINGQIANG (Autor:in) / YAO ZHIXIONG (Autor:in) / ZANG WANJUN (Autor:in) / CHEN JUNHAO (Autor:in) / LIN HUAMING (Autor:in) / XIANG YULONG (Autor:in) / WEI XINXING (Autor:in)
05.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Digging foundation around bridge approach and subway tunnels
Engineering Index Backfile | 1959
Digging New York's city-owned subway
| Engineering Index Backfile | 1932