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A platform for research: civil engineering, architecture and urbanism
Construction method of long spiral drilling pressure-grouting occlusion cast-in-place pile
The invention relates to the field of pile foundation support construction, and provides a long auger drilling pressure grouting occlusion cast-in-place pile construction method which comprises the steps that S1, a box type guide wall and a reinforcement cage are prefabricated and machined; s2, the erecting positions of plain piles and meat piles are planned and designed on site, and the box type guide wall is anchored to a soil body foundation; s3, a hole A is excavated through a long auger drilling machine, the hole is cleaned, and super-delayed coagulation concrete is injected into the hole A; s4, digging a hole B through a long spiral drilling machine, cleaning the hole, and performing pressure filling on common concrete; s5, the reinforcement cage is hoisted into the corresponding hole B; and S6, the plain piles and the reinforced piles are maintained, and the meshed cast-in-place piles are formed. On the basis, the construction period of the occluded cast-in-place pile can be shortened through rapid supporting of the box type guide wall and concrete pouring of the hole B in a pressure pouring mode, and the good construction progress of constructional engineering can be kept.
本申请涉及桩基支护施工领域，提供了一种长螺旋钻孔压灌咬合灌注桩施工方法，包括步骤S1，预制加工箱式导墙和钢筋笼；步骤S2，现场规划设计素桩与荤桩的支设位置，将箱式导墙锚固于土体基础；步骤S3，通过长螺旋钻孔机开挖A孔，清孔并注入超缓凝混凝土；步骤S4，通过长螺旋钻孔机挖坑B孔，清孔并压灌普通混凝土；步骤S5，将钢筋笼吊入对应的B孔内；步骤S6，对素桩和荤桩进行养护，形成咬合灌注桩。基于此，箱式导墙的快速支设以及B孔以压灌的方式浇筑混凝土，均能够缩短咬合灌注桩的施工周期，使得建筑工程能够保持良好的建造进度。
Construction method of long spiral drilling pressure-grouting occlusion cast-in-place pile
The invention relates to the field of pile foundation support construction, and provides a long auger drilling pressure grouting occlusion cast-in-place pile construction method which comprises the steps that S1, a box type guide wall and a reinforcement cage are prefabricated and machined; s2, the erecting positions of plain piles and meat piles are planned and designed on site, and the box type guide wall is anchored to a soil body foundation; s3, a hole A is excavated through a long auger drilling machine, the hole is cleaned, and super-delayed coagulation concrete is injected into the hole A; s4, digging a hole B through a long spiral drilling machine, cleaning the hole, and performing pressure filling on common concrete; s5, the reinforcement cage is hoisted into the corresponding hole B; and S6, the plain piles and the reinforced piles are maintained, and the meshed cast-in-place piles are formed. On the basis, the construction period of the occluded cast-in-place pile can be shortened through rapid supporting of the box type guide wall and concrete pouring of the hole B in a pressure pouring mode, and the good construction progress of constructional engineering can be kept.
本申请涉及桩基支护施工领域，提供了一种长螺旋钻孔压灌咬合灌注桩施工方法，包括步骤S1，预制加工箱式导墙和钢筋笼；步骤S2，现场规划设计素桩与荤桩的支设位置，将箱式导墙锚固于土体基础；步骤S3，通过长螺旋钻孔机开挖A孔，清孔并注入超缓凝混凝土；步骤S4，通过长螺旋钻孔机挖坑B孔，清孔并压灌普通混凝土；步骤S5，将钢筋笼吊入对应的B孔内；步骤S6，对素桩和荤桩进行养护，形成咬合灌注桩。基于此，箱式导墙的快速支设以及B孔以压灌的方式浇筑混凝土，均能够缩短咬合灌注桩的施工周期，使得建筑工程能够保持良好的建造进度。
Construction method of long spiral drilling pressure-grouting occlusion cast-in-place pile
一种长螺旋钻孔压灌咬合灌注桩施工方法
TU QILONG (author) / ZHANG BENDA (author) / XIAO RONGMEI (author)
2023-02-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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