Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cast-in-place pile forming method for karst cave stratum
The invention relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile forming method for a karst cave stratum. According to the technical scheme, the structure comprises a pile spiral bar, a pile main bar welded to the pile spiral bar and a double-layer fast and easy closing-up net connected with the pile main bar, the double-layer fast and easy closing-up net is tightly hooped with a protective layer steel bar through iron wire surrounding, a pile body is arranged in a stratum structure, and pile inner reinforcing bars used for reinforcing the pile body structure are arranged in the pile body. A dense-mesh fast-easy closing-up steel wire mesh is wound on the outer side of a reinforcement cage at the position where a cast-in-place pile penetrates through a karst cave in a staggered mode, four protection steel bars with the function of a steel bar protection layer are evenly welded to the outer side of the fast-easy closing-up steel wire mesh along the circumference, and the upper ends and the lower ends of the protection steel bars both exceed the steel wire mesh by not smaller than 500 mm. The upper end and the lower end of the fast-easy closing-in net both exceed the position of the karst cave by not less than 2 m, leakage of pile body concrete is prevented through the dense fast-easy closing-in net, the integrity of the pile body is guaranteed, construction is easy, materials are saved, and the integrity of the pile body can be effectively guaranteed.
本发明涉及灌注桩施工技术领域，尤其涉及一种用于溶洞地层的灌注桩成桩方法。其技术方案包括桩螺旋筋、与所述桩螺旋筋焊接的桩主筋、与所述桩主筋连接的双层快易收口网，所述双层快易收口网通过铁丝环绕与保护层钢筋箍紧，所述地层结构内设置桩体、与所述桩体内设置用于加强桩体结构的桩内加强筋。本发明在灌注桩穿溶洞处钢筋笼外侧错缝缠绕密目快易收口钢丝网，并在快易收口网外侧沿周长均分加焊四根带有钢筋保护层功能的保护钢筋，保护钢筋上下端均超出钢丝网不小于500mm。快易收口网上下端均超过溶洞位置不少于2m，通过密目快易收口网阻止桩身混凝土的外漏，保证桩身完整性，不仅施工简单，节约材料，还可以有效保证桩身完整。
Cast-in-place pile forming method for karst cave stratum
The invention relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile forming method for a karst cave stratum. According to the technical scheme, the structure comprises a pile spiral bar, a pile main bar welded to the pile spiral bar and a double-layer fast and easy closing-up net connected with the pile main bar, the double-layer fast and easy closing-up net is tightly hooped with a protective layer steel bar through iron wire surrounding, a pile body is arranged in a stratum structure, and pile inner reinforcing bars used for reinforcing the pile body structure are arranged in the pile body. A dense-mesh fast-easy closing-up steel wire mesh is wound on the outer side of a reinforcement cage at the position where a cast-in-place pile penetrates through a karst cave in a staggered mode, four protection steel bars with the function of a steel bar protection layer are evenly welded to the outer side of the fast-easy closing-up steel wire mesh along the circumference, and the upper ends and the lower ends of the protection steel bars both exceed the steel wire mesh by not smaller than 500 mm. The upper end and the lower end of the fast-easy closing-in net both exceed the position of the karst cave by not less than 2 m, leakage of pile body concrete is prevented through the dense fast-easy closing-in net, the integrity of the pile body is guaranteed, construction is easy, materials are saved, and the integrity of the pile body can be effectively guaranteed.
本发明涉及灌注桩施工技术领域，尤其涉及一种用于溶洞地层的灌注桩成桩方法。其技术方案包括桩螺旋筋、与所述桩螺旋筋焊接的桩主筋、与所述桩主筋连接的双层快易收口网，所述双层快易收口网通过铁丝环绕与保护层钢筋箍紧，所述地层结构内设置桩体、与所述桩体内设置用于加强桩体结构的桩内加强筋。本发明在灌注桩穿溶洞处钢筋笼外侧错缝缠绕密目快易收口钢丝网，并在快易收口网外侧沿周长均分加焊四根带有钢筋保护层功能的保护钢筋，保护钢筋上下端均超出钢丝网不小于500mm。快易收口网上下端均超过溶洞位置不少于2m，通过密目快易收口网阻止桩身混凝土的外漏，保证桩身完整性，不仅施工简单，节约材料，还可以有效保证桩身完整。
Cast-in-place pile forming method for karst cave stratum
一种用于溶洞地层的灌注桩成桩方法
LIANG ZHIWANG (Autor:in) / XUE YANG (Autor:in) / LYU YONGJIN (Autor:in)
10.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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