Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method and supporting structure for constructing foundation pit above existing facility
The invention relates to a method for constructing a foundation pit above an existing facility. The method for constructing the foundation pit above the existing facility includes the steps that a portal reinforcement body is applied, and the portal reinforcement body defines the existing facility inside; a starting well and a receiving well are applied; pipe curtain construction is carried out through the starting well and the receiving well, wherein a pipe curtain is formed in a top beam of the portal reinforcement body; and the starting well and the receiving well are backfilled for foundation pit construction. In addition, a supporting structure for constructing the foundation pit above the existing facility is provided accordingly. According to the method and the supporting structurefor constructing the foundation pit above the existing facility, by applying the reinforcement body around the existing facility for reinforcement and applying the pipe curtain in the top beam of thereinforcement body, the pipe curtain and the reinforcement body integrally resist water pressure around the existing facility and restrain deformation of the existing facility, the better protection effect and water blocking effect can be obtained, and the safety of foundation pit excavation and the structural safety of the existing facility self can be fully ensured; and the method is further suitable for engineering construction under the condition of water-bearing sand layers and the like, and especially, the construction safety performance of the foundation pit excavation above an underground tunnel and the other projects is well guaranteed.
本发明涉及一种在既有设施上方施工基坑的方法，包括：施作门式加固体，门式加固体将既有设施围护于内；施作始发井和接收井；通过始发井和接收井进行管幕施工，其中，管幕形成于门式加固体的顶梁中；回填始发井和接收井，进行基坑的施工。另外相应地还提供一种在既有设施上方施工基坑的支护结构。本发明通过在既有设施周围施作加固体加固并在加固体顶梁中施作管幕，管幕与加固体一体抵抗既有设施周围水压以及约束既有设施变形，可获得较好的防护效果及阻水效果，充分地保证基坑开挖安全和既有设施本身的结构安全；本方法对于含水砂层等条件下的工程施工也能较好地适用，尤其是在地下隧道上方开挖基坑等工程的施工安全性能较好地得到保证。
Method and supporting structure for constructing foundation pit above existing facility
The invention relates to a method for constructing a foundation pit above an existing facility. The method for constructing the foundation pit above the existing facility includes the steps that a portal reinforcement body is applied, and the portal reinforcement body defines the existing facility inside; a starting well and a receiving well are applied; pipe curtain construction is carried out through the starting well and the receiving well, wherein a pipe curtain is formed in a top beam of the portal reinforcement body; and the starting well and the receiving well are backfilled for foundation pit construction. In addition, a supporting structure for constructing the foundation pit above the existing facility is provided accordingly. According to the method and the supporting structurefor constructing the foundation pit above the existing facility, by applying the reinforcement body around the existing facility for reinforcement and applying the pipe curtain in the top beam of thereinforcement body, the pipe curtain and the reinforcement body integrally resist water pressure around the existing facility and restrain deformation of the existing facility, the better protection effect and water blocking effect can be obtained, and the safety of foundation pit excavation and the structural safety of the existing facility self can be fully ensured; and the method is further suitable for engineering construction under the condition of water-bearing sand layers and the like, and especially, the construction safety performance of the foundation pit excavation above an underground tunnel and the other projects is well guaranteed.
本发明涉及一种在既有设施上方施工基坑的方法，包括：施作门式加固体，门式加固体将既有设施围护于内；施作始发井和接收井；通过始发井和接收井进行管幕施工，其中，管幕形成于门式加固体的顶梁中；回填始发井和接收井，进行基坑的施工。另外相应地还提供一种在既有设施上方施工基坑的支护结构。本发明通过在既有设施周围施作加固体加固并在加固体顶梁中施作管幕，管幕与加固体一体抵抗既有设施周围水压以及约束既有设施变形，可获得较好的防护效果及阻水效果，充分地保证基坑开挖安全和既有设施本身的结构安全；本方法对于含水砂层等条件下的工程施工也能较好地适用，尤其是在地下隧道上方开挖基坑等工程的施工安全性能较好地得到保证。
Method and supporting structure for constructing foundation pit above existing facility
在既有设施上方施工基坑的方法及支护结构
LI WENBIAO (Autor:in) / ZHAO XING (Autor:in) / WANG JINLONG (Autor:in) / LYU YANHAO (Autor:in) / PAN QING (Autor:in) / DOU HAITAO (Autor:in) / YOU LONGFEI (Autor:in) / CAI XINGRUI (Autor:in) / DIAO WEIKE (Autor:in) / XU WEIHONG (Autor:in)
16.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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