Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for constructing pile foundation in karst cave area
The invention belongs to the technical field of karst cave pile foundation construction, particularly relates to a karst cave area pile foundation construction method, and solves the problem that construction safety and construction quality are difficult to guarantee. The method comprises the following steps: S1, carrying out geotechnical investigation on a project site, displaying a karst cave distribution range, and generating a report; s2, according to the report, adjusting the bearing stratum of the cast-in-place pile in the karst cave and the fracture zone from moderately-weathered limestone to round gravel; s3, after filling adjustment is completed, construction of fender posts is completed firstly, engineering piles are continuously propelled from the periphery to the center, earthwork continuously follows up, and during construction of the fender posts or the engineering piles, rotary drilling is adopted for hole forming and pile forming, and meanwhile, a method of putting clay and rubble for wall building is adopted for treatment; s4, after the rotary drilling rig completes construction, retreating, and completing construction in an area where the rotary drilling rig cannot be used for pore-forming and pile-forming by adopting a full-rotation pile machine; and S5, after construction of all the pile foundations is completed, the equipment is returned. The effects of flexible coping with complex geological conditions, safe construction and high quality are achieved.
本发明属于溶洞桩基施工技术领域，特别涉及一种溶洞区域桩基施工方法，它解决了难以保障施工安全和施工质量的问题。本方法，包括以下步骤：S1、对项目场地进行岩土勘察,显示溶洞分布范围，并生成报告；S2、根据报告，对溶洞及破碎带区域的灌注桩持力层由中风化灰岩调整为圆砾；S3、填充调整完成后，先完成围护桩的施工，工程桩则由四周持续向中心推进，土方持续跟进，在围护桩或工程桩施工时，采用旋挖钻成孔成桩，同时采用投放粘土加片石筑壁的方法处理；S4、旋挖钻完成施工后退场，并对无法使用旋挖钻成孔成桩的区域采用全回转桩机完成施工；S5、完成所有桩基的施工后，设备退场。实现了灵活应对复杂地质条件，且施工安全、质量高的效果。
Method for constructing pile foundation in karst cave area
The invention belongs to the technical field of karst cave pile foundation construction, particularly relates to a karst cave area pile foundation construction method, and solves the problem that construction safety and construction quality are difficult to guarantee. The method comprises the following steps: S1, carrying out geotechnical investigation on a project site, displaying a karst cave distribution range, and generating a report; s2, according to the report, adjusting the bearing stratum of the cast-in-place pile in the karst cave and the fracture zone from moderately-weathered limestone to round gravel; s3, after filling adjustment is completed, construction of fender posts is completed firstly, engineering piles are continuously propelled from the periphery to the center, earthwork continuously follows up, and during construction of the fender posts or the engineering piles, rotary drilling is adopted for hole forming and pile forming, and meanwhile, a method of putting clay and rubble for wall building is adopted for treatment; s4, after the rotary drilling rig completes construction, retreating, and completing construction in an area where the rotary drilling rig cannot be used for pore-forming and pile-forming by adopting a full-rotation pile machine; and S5, after construction of all the pile foundations is completed, the equipment is returned. The effects of flexible coping with complex geological conditions, safe construction and high quality are achieved.
本发明属于溶洞桩基施工技术领域，特别涉及一种溶洞区域桩基施工方法，它解决了难以保障施工安全和施工质量的问题。本方法，包括以下步骤：S1、对项目场地进行岩土勘察,显示溶洞分布范围，并生成报告；S2、根据报告，对溶洞及破碎带区域的灌注桩持力层由中风化灰岩调整为圆砾；S3、填充调整完成后，先完成围护桩的施工，工程桩则由四周持续向中心推进，土方持续跟进，在围护桩或工程桩施工时，采用旋挖钻成孔成桩，同时采用投放粘土加片石筑壁的方法处理；S4、旋挖钻完成施工后退场，并对无法使用旋挖钻成孔成桩的区域采用全回转桩机完成施工；S5、完成所有桩基的施工后，设备退场。实现了灵活应对复杂地质条件，且施工安全、质量高的效果。
Method for constructing pile foundation in karst cave area
溶洞区域桩基施工方法
JING KAI (Autor:in) / WANG XIAOHUA (Autor:in) / TAN QIONG (Autor:in) / ZHANG FEIYI (Autor:in) / HUANG LEI (Autor:in) / HUANG CHAO (Autor:in) / LI HAIYANG (Autor:in) / LI JINRUI (Autor:in) / ZHANG JIAYU (Autor:in) / TANG HUAFU (Autor:in)
08.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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