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Grouting steel pipe spiral anchor composite pile foundation and construction method
The invention relates to a grouting steel pipe spiral anchor composite pile foundation and a construction method, a spiral anchor comprises a spiral anchor hollow rod body located in a soil body, an anchor disc is arranged on the outer side of the spiral anchor hollow rod body, and radial anchor disc grouting holes are spirally distributed in the anchor disc; the steel pipe pile comprises a steel pipe pile hollow rod body located in the rock mass, a steel pipe pile shoe is arranged at the lower end of the steel pipe pile hollow rod body, and a pile shoe grouting hole is formed in the steel pipe pile shoe; one-way valves are arranged at openings of the anchor disc grouting holes and/or the pile shoe grouting holes; the bearing capacity of the upper soil body is utilized through the spiral anchor, the strength of the lower rock body can also be utilized through the steel pipe pile, the applicability problem of the upper-soil lower-rock spiral anchor foundation can be effectively solved, and meanwhile the bearing performance of the composite pile is improved.
本发明涉及一种注浆钢管螺旋锚复合桩基础及施工方法，螺旋锚：位于土体中的螺旋锚空心杆身，所述螺旋锚空心杆身外侧设置有锚盘，所述锚盘内沿其螺旋状分布着放射状的锚盘注浆孔；钢管桩：位于岩体中的钢管桩空心杆身，所述钢管桩空心杆身下端设置有钢管桩靴，所述钢管桩靴上开设桩靴注浆孔；所述锚盘注浆孔和/或桩靴注浆孔开口处设置有单向阀门；通过螺旋锚利用上部土体的承载力，也能通过钢管桩利用下部岩体的强度，可以有效的解决上土下岩螺旋锚基础的适用性问题，同时为了提高复合桩的承载性能。
Grouting steel pipe spiral anchor composite pile foundation and construction method
The invention relates to a grouting steel pipe spiral anchor composite pile foundation and a construction method, a spiral anchor comprises a spiral anchor hollow rod body located in a soil body, an anchor disc is arranged on the outer side of the spiral anchor hollow rod body, and radial anchor disc grouting holes are spirally distributed in the anchor disc; the steel pipe pile comprises a steel pipe pile hollow rod body located in the rock mass, a steel pipe pile shoe is arranged at the lower end of the steel pipe pile hollow rod body, and a pile shoe grouting hole is formed in the steel pipe pile shoe; one-way valves are arranged at openings of the anchor disc grouting holes and/or the pile shoe grouting holes; the bearing capacity of the upper soil body is utilized through the spiral anchor, the strength of the lower rock body can also be utilized through the steel pipe pile, the applicability problem of the upper-soil lower-rock spiral anchor foundation can be effectively solved, and meanwhile the bearing performance of the composite pile is improved.
本发明涉及一种注浆钢管螺旋锚复合桩基础及施工方法，螺旋锚：位于土体中的螺旋锚空心杆身，所述螺旋锚空心杆身外侧设置有锚盘，所述锚盘内沿其螺旋状分布着放射状的锚盘注浆孔；钢管桩：位于岩体中的钢管桩空心杆身，所述钢管桩空心杆身下端设置有钢管桩靴，所述钢管桩靴上开设桩靴注浆孔；所述锚盘注浆孔和/或桩靴注浆孔开口处设置有单向阀门；通过螺旋锚利用上部土体的承载力，也能通过钢管桩利用下部岩体的强度，可以有效的解决上土下岩螺旋锚基础的适用性问题，同时为了提高复合桩的承载性能。
Grouting steel pipe spiral anchor composite pile foundation and construction method
一种注浆钢管螺旋锚复合桩基础及施工方法
YIN YUAN (author) / WU FENQIAN (author) / LI YANGSEN (author) / YU XINMIN (author) / LIN SHAOYUAN (author) / CHEN WEIYU (author) / JI LIANHUI (author) / CAI WANGXIN (author) / CHENG JIANPING (author) / LIU XIANGGUO (author)
2024-05-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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