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A platform for research: civil engineering, architecture and urbanism
Construction method of large-area soil-squeezing pile group in soil-squeezing sensitive area
The invention provides a construction method of a large-area soil-squeezing pile group in a soil-squeezing sensitive area, and relates to the technical field of foundation construction. The construction method comprises the following steps that a large-area prestressed pipe pile group area is divided into a plurality of zones; deep isolation ditches are formed in the peripheries of the pile groupand zone line parts; stress release holes are locally formed in the zones; pile group construction is carried out zone by zone according to the zone sequence, and each zone is divided into a pluralityof sub-blocks for pile group driving from the center to the periphery. According to the method, the modes of zone isolation and block release are adopted, the soil-squeezing stress generated by large-area pile group construction is broken up into parts, and the safety of adjacent existing building basements or deep foundations can be effectively ensured.
本发明提供了一种挤土敏感区大面积挤土群桩的施工方法，涉及地基基础施工技术领域，包括将大面积预应管桩群桩区分割为若干分区；在群桩外围及分区线部位设置深层隔离沟；在各分区内局部设置应力释放孔；群桩施工按分区顺序逐区进行，每个分区分若干分块由中心向四周进行群桩打设。本发明采用分区隔离、分块释放的方式，将大面积群桩施工产生的挤土应力化整为零，可有效确保邻近的既有建筑地下室或深基础安全。
Construction method of large-area soil-squeezing pile group in soil-squeezing sensitive area
The invention provides a construction method of a large-area soil-squeezing pile group in a soil-squeezing sensitive area, and relates to the technical field of foundation construction. The construction method comprises the following steps that a large-area prestressed pipe pile group area is divided into a plurality of zones; deep isolation ditches are formed in the peripheries of the pile groupand zone line parts; stress release holes are locally formed in the zones; pile group construction is carried out zone by zone according to the zone sequence, and each zone is divided into a pluralityof sub-blocks for pile group driving from the center to the periphery. According to the method, the modes of zone isolation and block release are adopted, the soil-squeezing stress generated by large-area pile group construction is broken up into parts, and the safety of adjacent existing building basements or deep foundations can be effectively ensured.
本发明提供了一种挤土敏感区大面积挤土群桩的施工方法，涉及地基基础施工技术领域，包括将大面积预应管桩群桩区分割为若干分区；在群桩外围及分区线部位设置深层隔离沟；在各分区内局部设置应力释放孔；群桩施工按分区顺序逐区进行，每个分区分若干分块由中心向四周进行群桩打设。本发明采用分区隔离、分块释放的方式，将大面积群桩施工产生的挤土应力化整为零，可有效确保邻近的既有建筑地下室或深基础安全。
Construction method of large-area soil-squeezing pile group in soil-squeezing sensitive area
挤土敏感区大面积挤土群桩的施工方法
YE XIANG (author) / ZHAO ZHIHAI (author) / LIU ZHONGHUA (author) / ZHENG RUIHENG (author) / GUO WEIGUO (author) / SHEN JIANMING (author) / ZHANG YUQI (author) / YANG BO (author) / HU GUANGLONG (author) / YAO PANPAN (author)
2020-08-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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