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A platform for research: civil engineering, architecture and urbanism
Construction method for steel pipe pile bottom grouting
The invention belongs to the technical field of foundation construction, and discloses a construction method for steel pipe pile bottom grouting. The construction method comprises the steps that S1, a resonance-free hydraulic vibration hammer is adopted to drive a steel pipe pile to the designed depth; S2, grouting is conducted on the outer side of the pile bottom of the steel pipe pile to form an expanded head; and grouting is conducted on the inner side of the pile bottom of the steel pipe pile to form a grouting soil plug. The outer side of the pile bottom of the steel pipe pile is grouted to form the expanded head; and the inner side of the pile bottom of the steel pipe pile is grouted to form the grouting soil plug, and the expanded head and the grouting soil plug form transverse and longitudinal strength reinforcement on the pile bottom end of the steel pipe pile, so that the bearing capacity of a single pile is improved.
本发明属于地基基础施工技术领域，公开了一种钢管桩桩底注浆的施工方法，S1，采用免共振液压振动锤将钢管桩打设到设计深度；S2，在钢管桩的桩底外侧注浆以形成扩大头；在钢管桩的桩底内侧注浆以形成注浆土塞。本发明通过在钢管桩的桩底外侧注浆以形成扩大头；在钢管桩的桩底内侧注浆以形成注浆土塞，扩大头和注浆土塞对钢管桩的桩底端形成横向和纵向的强度加强，从而提高单桩承载力。
Construction method for steel pipe pile bottom grouting
The invention belongs to the technical field of foundation construction, and discloses a construction method for steel pipe pile bottom grouting. The construction method comprises the steps that S1, a resonance-free hydraulic vibration hammer is adopted to drive a steel pipe pile to the designed depth; S2, grouting is conducted on the outer side of the pile bottom of the steel pipe pile to form an expanded head; and grouting is conducted on the inner side of the pile bottom of the steel pipe pile to form a grouting soil plug. The outer side of the pile bottom of the steel pipe pile is grouted to form the expanded head; and the inner side of the pile bottom of the steel pipe pile is grouted to form the grouting soil plug, and the expanded head and the grouting soil plug form transverse and longitudinal strength reinforcement on the pile bottom end of the steel pipe pile, so that the bearing capacity of a single pile is improved.
本发明属于地基基础施工技术领域，公开了一种钢管桩桩底注浆的施工方法，S1，采用免共振液压振动锤将钢管桩打设到设计深度；S2，在钢管桩的桩底外侧注浆以形成扩大头；在钢管桩的桩底内侧注浆以形成注浆土塞。本发明通过在钢管桩的桩底外侧注浆以形成扩大头；在钢管桩的桩底内侧注浆以形成注浆土塞，扩大头和注浆土塞对钢管桩的桩底端形成横向和纵向的强度加强，从而提高单桩承载力。
Construction method for steel pipe pile bottom grouting
一种钢管桩桩底注浆的施工方法
GAO ZHENFENG (author) / ZHOU ZHENG (author) / ZHONG JIANPING (author) / ZHOU RONGFENG (author) / WANG XIAO (author) / XU WENWEI (author) / ZHU WEI (author) / YANG YIWEN (author)
2021-09-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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