Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of underground building tubular pile group foundation in deep soft soil area
The invention discloses a construction method of an underground building tubular pile group foundation in a deep soft soil area. The construction method comprises the following steps that foundation pit earthwork is excavated to the required depth of the underground building foundation, and deep soft soil below the bottom of a foundation pit is replaced and filled with a hard shell replacing and filling layer or reinforced through a cement soil mixing pile and constructed through a tubular pile group. According to the method, the bottom of the foundation pit is reinforced through the hard shell replacing and filling layer or the cement soil mixing pile, the bottom of the foundation pit is hardened, a complete stress surface is formed at the bottom of the foundation pit, the phenomenon that during construction of a tubular pile group in a deep soft soil area, due to the fact that the compressibility is high and the bearing capacity of soft soil is low, the horizontal force caused by the soil squeezing effect during construction of a tubular pile group, asymmetric soil piling, walking of construction machinery and the like damages the constructed tubular piles. Furthermore, the hardened bottom of the foundation pit serves as an operation platform of the construction machine, so that the construction machine can walk conveniently and is prevented from sinking. According to the method, the construction quality of the underground building tubular pile group foundation in the deep soft soil area can be improved, meanwhile, the construction period is shortened, and cost is saved.
本发明公开了一种深厚软土区域地下建筑管桩群基础的施工方法，包括以下步骤：基坑土方开挖至地下建筑基础所需深度、将基坑底部下方的深厚软土使用硬壳换填层换填或利用水泥土搅拌桩加固及管桩群施工。该方法通过硬壳换填层或水泥土搅拌桩加固基坑底部，对基坑底部加以硬化，使基坑底部形成一个完整的受力面，防止深厚软土区域管桩群施工时，由于软土的压缩性高、承载力低，管桩群施工时的挤土效应、不对称堆土和施工机械行走等造成的水平力对已施工的管桩造成破坏。进一步的，硬化后的基坑底部作为施工机械的作业平台，方便施工机械行走并防止其下陷。该方法能够改善深厚软土区域地下建筑管桩群基础的施工质量，同时缩短施工周期，节约成本。
Construction method of underground building tubular pile group foundation in deep soft soil area
The invention discloses a construction method of an underground building tubular pile group foundation in a deep soft soil area. The construction method comprises the following steps that foundation pit earthwork is excavated to the required depth of the underground building foundation, and deep soft soil below the bottom of a foundation pit is replaced and filled with a hard shell replacing and filling layer or reinforced through a cement soil mixing pile and constructed through a tubular pile group. According to the method, the bottom of the foundation pit is reinforced through the hard shell replacing and filling layer or the cement soil mixing pile, the bottom of the foundation pit is hardened, a complete stress surface is formed at the bottom of the foundation pit, the phenomenon that during construction of a tubular pile group in a deep soft soil area, due to the fact that the compressibility is high and the bearing capacity of soft soil is low, the horizontal force caused by the soil squeezing effect during construction of a tubular pile group, asymmetric soil piling, walking of construction machinery and the like damages the constructed tubular piles. Furthermore, the hardened bottom of the foundation pit serves as an operation platform of the construction machine, so that the construction machine can walk conveniently and is prevented from sinking. According to the method, the construction quality of the underground building tubular pile group foundation in the deep soft soil area can be improved, meanwhile, the construction period is shortened, and cost is saved.
本发明公开了一种深厚软土区域地下建筑管桩群基础的施工方法，包括以下步骤：基坑土方开挖至地下建筑基础所需深度、将基坑底部下方的深厚软土使用硬壳换填层换填或利用水泥土搅拌桩加固及管桩群施工。该方法通过硬壳换填层或水泥土搅拌桩加固基坑底部，对基坑底部加以硬化，使基坑底部形成一个完整的受力面，防止深厚软土区域管桩群施工时，由于软土的压缩性高、承载力低，管桩群施工时的挤土效应、不对称堆土和施工机械行走等造成的水平力对已施工的管桩造成破坏。进一步的，硬化后的基坑底部作为施工机械的作业平台，方便施工机械行走并防止其下陷。该方法能够改善深厚软土区域地下建筑管桩群基础的施工质量，同时缩短施工周期，节约成本。
Construction method of underground building tubular pile group foundation in deep soft soil area
一种深厚软土区域地下建筑管桩群基础的施工方法
LIU GANG (Autor:in) / WU LIPENG (Autor:in) / WANG XIANG (Autor:in) / ZHAN HONGYUE (Autor:in) / WANG XUN (Autor:in) / TANG YONG (Autor:in) / ZHOU WENFANG (Autor:in) / GUO KAI (Autor:in) / LIU JINPENG (Autor:in) / WEI CAIXIA (Autor:in)
04.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
| Europäisches Patentamt | 2023
Construction method of underground building pipe pile group foundation
| Europäisches Patentamt | 2024
PHC tubular pile guide hole pile sinking construction method for deep soft foundation
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
Concrete foundation and underground tubular pile anchoring construction method
| Europäisches Patentamt | 2015