A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Stirring pile construction method and composite pile construction method thereof
The invention belongs to the field of soft soil foundation treatment, and particularly relates to a mixing pile construction method which comprises the following steps: in a drilling and liquid spraying step, cutting and crushing a soil body underground at a preset pile position and injecting liquid to a first preset depth position to form a mixing pile hole; and dry concrete materials containing powder are injected from the first preset depth position of the stirring pile hole until the dry concrete materials rise to the second preset depth position, a stirring pile body is formed, the water content in the stirring pile hole is effectively reduced, the strength of the pile body is rapidly improved, and then the bearing capacity of the soft soil foundation is effectively improved. The invention further provides a composite pile construction method, the composite pile construction method comprises the stirring pile construction method and further comprises a pile planting step carried out after the powder concrete pile forming step, and a precast pile is inserted into the stirring pile to the preset depth before the stirring pile is not solidified. And stronger support is provided for the building on the building.
本发明属于软土地基处理领域，尤其涉及一种搅拌桩施工方法，包括在进钻喷液步骤中，在预定桩位往地下切割破碎土体并伴随注入液体至第一预定深度位置形成搅拌桩桩孔，在粉砼成桩步骤中，自搅拌桩桩孔的所述第一预定深度位置起注入包含粉体的干砼料直至上升到第二预定深度位置，形成搅拌桩桩身，有效降低搅拌桩桩孔内的含水量，使桩身强度快速提高，进而有效提高软土地基的承载力。本发明还提供一种复合桩施工方法，包括如上所述的搅拌桩施工方法，还包括在粉砼成桩步骤后续进行的植桩步骤，在搅拌桩未固结前，向搅拌桩内插设预制桩至预定深度，该复合桩显著提高软土地基的力学承载性能，对其上的建筑物提供更强的支撑。
Stirring pile construction method and composite pile construction method thereof
The invention belongs to the field of soft soil foundation treatment, and particularly relates to a mixing pile construction method which comprises the following steps: in a drilling and liquid spraying step, cutting and crushing a soil body underground at a preset pile position and injecting liquid to a first preset depth position to form a mixing pile hole; and dry concrete materials containing powder are injected from the first preset depth position of the stirring pile hole until the dry concrete materials rise to the second preset depth position, a stirring pile body is formed, the water content in the stirring pile hole is effectively reduced, the strength of the pile body is rapidly improved, and then the bearing capacity of the soft soil foundation is effectively improved. The invention further provides a composite pile construction method, the composite pile construction method comprises the stirring pile construction method and further comprises a pile planting step carried out after the powder concrete pile forming step, and a precast pile is inserted into the stirring pile to the preset depth before the stirring pile is not solidified. And stronger support is provided for the building on the building.
本发明属于软土地基处理领域，尤其涉及一种搅拌桩施工方法，包括在进钻喷液步骤中，在预定桩位往地下切割破碎土体并伴随注入液体至第一预定深度位置形成搅拌桩桩孔，在粉砼成桩步骤中，自搅拌桩桩孔的所述第一预定深度位置起注入包含粉体的干砼料直至上升到第二预定深度位置，形成搅拌桩桩身，有效降低搅拌桩桩孔内的含水量，使桩身强度快速提高，进而有效提高软土地基的承载力。本发明还提供一种复合桩施工方法，包括如上所述的搅拌桩施工方法，还包括在粉砼成桩步骤后续进行的植桩步骤，在搅拌桩未固结前，向搅拌桩内插设预制桩至预定深度，该复合桩显著提高软土地基的力学承载性能，对其上的建筑物提供更强的支撑。
Stirring pile construction method and composite pile construction method thereof
一种搅拌桩施工方法及其复合桩施工方法
2023-07-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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