Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Connecting channel construction method of existing underground structure in weak water-rich stratum
The invention discloses a connecting channel construction method of an existing underground structure in a weak water-rich stratum. The method comprises the following steps of 1, constructing a waterproof curtain; 2, reinforcing bottom soft soil; 3, reinforcing upper soft soil; 4, reinforcing soft soil at an excavating region; 5, secondarily reinforcing the upper soft soil; 6, separating an external wall and building envelope; 7, disassembling the external wall and building envelope; 8, excavating one half of soil body and performing preliminary supporting; 9, excavating the other half of thesoil body and performing preliminary supporting; 10, constructing a connecting channel structure; 11, performing supporting and disassembling; 12, executing the steps 8-11 repeatedly till excavation and structural construction of the whole connecting channel are completed; 13, disassembling the external wall and building envelope of the underground structure at the other end of the connecting channel. Accordingly, construction of the connecting channel is completed. By adopting construction measures such as comprehensive pre-reinforcing, sectioning and partitioning excavation, comprehensive supporting modes, the technology is simple, the waterstop effect is good, construction is convenient, risks are small, the influence on surroundings is small, and the method is particularly applicable to the weak water-rich stratum.
本发明公开了一种软弱富水地层中既有地下结构的连接通道施工方法，包括以下步骤：1）施作止水帷幕；2）底部软土加固；3）上部软土加固；4）开挖区软土加固；5)上部软土二次加固；6）分离外墙和围护结构；7）拆除外墙和围护结构；8）开挖半幅土体并初期支护；9）开挖另半幅土体并初期支护；10）施作连接通道结构；11）支撑拆除；12）重复步骤8）‑步骤11），直至完成整个连接通道的开挖和结构施工；13）拆除连接通道另一端地下结构的外墙和围护结构，即完成连接通道的施工。本发明采用的综合预加固、分段分区开挖、综合支护方式等施工措施，工艺简单，止水效果好，施工便捷且风险小，对周边环境影响小，尤其适用于软弱富水地层。
Connecting channel construction method of existing underground structure in weak water-rich stratum
The invention discloses a connecting channel construction method of an existing underground structure in a weak water-rich stratum. The method comprises the following steps of 1, constructing a waterproof curtain; 2, reinforcing bottom soft soil; 3, reinforcing upper soft soil; 4, reinforcing soft soil at an excavating region; 5, secondarily reinforcing the upper soft soil; 6, separating an external wall and building envelope; 7, disassembling the external wall and building envelope; 8, excavating one half of soil body and performing preliminary supporting; 9, excavating the other half of thesoil body and performing preliminary supporting; 10, constructing a connecting channel structure; 11, performing supporting and disassembling; 12, executing the steps 8-11 repeatedly till excavation and structural construction of the whole connecting channel are completed; 13, disassembling the external wall and building envelope of the underground structure at the other end of the connecting channel. Accordingly, construction of the connecting channel is completed. By adopting construction measures such as comprehensive pre-reinforcing, sectioning and partitioning excavation, comprehensive supporting modes, the technology is simple, the waterstop effect is good, construction is convenient, risks are small, the influence on surroundings is small, and the method is particularly applicable to the weak water-rich stratum.
本发明公开了一种软弱富水地层中既有地下结构的连接通道施工方法，包括以下步骤：1）施作止水帷幕；2）底部软土加固；3）上部软土加固；4）开挖区软土加固；5)上部软土二次加固；6）分离外墙和围护结构；7）拆除外墙和围护结构；8）开挖半幅土体并初期支护；9）开挖另半幅土体并初期支护；10）施作连接通道结构；11）支撑拆除；12）重复步骤8）‑步骤11），直至完成整个连接通道的开挖和结构施工；13）拆除连接通道另一端地下结构的外墙和围护结构，即完成连接通道的施工。本发明采用的综合预加固、分段分区开挖、综合支护方式等施工措施，工艺简单，止水效果好，施工便捷且风险小，对周边环境影响小，尤其适用于软弱富水地层。
Connecting channel construction method of existing underground structure in weak water-rich stratum
软弱富水地层中既有地下结构的连接通道施工方法
WANG QIYUN (Autor:in) / XIAO NANXIONG (Autor:in) / ZHANG BINGQIANG (Autor:in) / CHEN JUNHAO (Autor:in) / ZANG WANJUN (Autor:in) / YAO ZHIXIONG (Autor:in) / LIN HUAMING (Autor:in) / XIANG YULONG (Autor:in) / WEI XINXING (Autor:in) / WANG JIANHUA (Autor:in)
05.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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