A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of hole digging pile
The invention relates to the technical field of pile foundation construction engineering, and provides a hole digging pile construction method which comprises the steps that the position and design parameters of a rectangular hole pile are determined; steel floral tubes are drilled, the multiple steel floral tubes are arranged at intervals in the circumferential direction of the rectangular hole pile, the depth of each steel floral tube penetrating into the bearing soil layer is larger than or equal to 1 m, and the center-to-center distance between every two adjacent steel floral tubes is 0.5 m; grouting is conducted, specifically, grout is injected into the steel floral tube, and the grout permeates into miscellaneous fill through grout outlets in the tube wall of the steel floral tube; and after reinforcement is completed, a rectangular hole is dug, and wall protection supporting is conducted on the inner wall face of the rectangular hole. The steel floral tubes are arranged on the periphery of the rectangular hole pile, and a steel floral tube and grout integrated reinforcing structure is formed through grouting; the rectangular hole is dug, wall protection supporting is carried out on the inner wall face of the rectangular hole, the problems that in the hole digging process of the deep miscellaneous fill section, deformation and hole collapse are likely to happen, wall protection implementation is difficult, and hole digging and forming are difficult can be effectively solved, and the operability and safety of hole digging pile construction are improved.
本发明涉及桩基施工工程技术领域，提供一种挖孔桩的施工方法，包括：确定矩形孔桩的位置及设计参数；钻设钢花管，多个钢花管沿矩形孔桩的周向间隔设置，每个钢花管深入持力土层的深度大于等于1m，且相邻两个钢花管之间的中心间距为0.5m；注浆，向钢花管内注入浆液，浆液经钢花管管壁上的出浆口渗入杂填土；待加固完成后，挖设矩形孔洞，并对矩形孔洞的内壁面进行护壁支护。本发明通过在矩形孔桩的周围设置钢花管，通过注浆形成钢花管和浆液一体的加固结构；挖设矩形孔洞并对矩形孔洞的内壁面进行护壁支护，可有效解决深厚杂填土地段挖设孔洞过程中易变形、塌孔、护壁实施困难、难以开挖成孔等问题，提高挖孔桩施工的可操作性和安全性。
Construction method of hole digging pile
The invention relates to the technical field of pile foundation construction engineering, and provides a hole digging pile construction method which comprises the steps that the position and design parameters of a rectangular hole pile are determined; steel floral tubes are drilled, the multiple steel floral tubes are arranged at intervals in the circumferential direction of the rectangular hole pile, the depth of each steel floral tube penetrating into the bearing soil layer is larger than or equal to 1 m, and the center-to-center distance between every two adjacent steel floral tubes is 0.5 m; grouting is conducted, specifically, grout is injected into the steel floral tube, and the grout permeates into miscellaneous fill through grout outlets in the tube wall of the steel floral tube; and after reinforcement is completed, a rectangular hole is dug, and wall protection supporting is conducted on the inner wall face of the rectangular hole. The steel floral tubes are arranged on the periphery of the rectangular hole pile, and a steel floral tube and grout integrated reinforcing structure is formed through grouting; the rectangular hole is dug, wall protection supporting is carried out on the inner wall face of the rectangular hole, the problems that in the hole digging process of the deep miscellaneous fill section, deformation and hole collapse are likely to happen, wall protection implementation is difficult, and hole digging and forming are difficult can be effectively solved, and the operability and safety of hole digging pile construction are improved.
本发明涉及桩基施工工程技术领域，提供一种挖孔桩的施工方法，包括：确定矩形孔桩的位置及设计参数；钻设钢花管，多个钢花管沿矩形孔桩的周向间隔设置，每个钢花管深入持力土层的深度大于等于1m，且相邻两个钢花管之间的中心间距为0.5m；注浆，向钢花管内注入浆液，浆液经钢花管管壁上的出浆口渗入杂填土；待加固完成后，挖设矩形孔洞，并对矩形孔洞的内壁面进行护壁支护。本发明通过在矩形孔桩的周围设置钢花管，通过注浆形成钢花管和浆液一体的加固结构；挖设矩形孔洞并对矩形孔洞的内壁面进行护壁支护，可有效解决深厚杂填土地段挖设孔洞过程中易变形、塌孔、护壁实施困难、难以开挖成孔等问题，提高挖孔桩施工的可操作性和安全性。
Construction method of hole digging pile
挖孔桩的施工方法
WAN XIAOLIN (author) / LI ZHUN (author) / ZHAO XINGZHONG (author) / NIE WENFENG (author) / HUANG XIN (author) / SONG YANDE (author) / HUANG WENQIANG (author)
2024-01-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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