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Construction method of cantilever pile foundation pit support
The invention discloses a construction method of a cantilever pile foundation pit support. The construction method comprises the following steps that a groove is excavated, and a stirring machine is in place; arranging foundation pit monitoring points, and monitoring the foundation pit; a three-axis stirring pile is constructed to serve as a waterproof curtain; and a prestressed pipe pile cantilever support is constructed as a pipe pile support, and the pipe pile support is matched with the waterproof curtain to form an enclosure structure. Compared with conventional foundation pit supporting forms such as cement mixing piles, steel pipe piles, SMW construction method piles and cast-in-situ bored piles, the prestressed pipe pile cantilever supporting form has the advantages of being short in construction period, convenient and fast to construct, safe, reliable, reasonable in cost and the like, adaptability to special geological conditions such as deep and thick sludge is high, the design thought is developed, and the construction period is shortened. And a complete foundation pit support is formed by the three-axis cement mixing pile waterproof curtain and the three-axis cement mixing pile waterproof curtain, so that the stability and the safety of the foundation pit are ensured.
本发明公开了一种悬臂桩基坑支护的施工方法，包括以下步骤：开挖沟槽，搅拌机就位；布置基坑监测点，对基坑进行监测；施工三轴搅拌桩作为止水帷幕；施工预应力管桩悬臂支护作为管桩支护，管桩支护与止水帷幕配合形成围护结构。预应力管桩悬臂支护形式与常规水泥搅拌桩、钢管桩、SMW工法桩和钻孔灌注桩等基坑支护形式对比，具有较好的工期短、施工便捷、安全可靠、成本合理等特点，深厚淤泥质等特殊地质条件适应性强，开拓了设计思路，并与三轴水泥搅拌桩止水帷幕形成完整的基坑支护，保证了基坑稳定性和安全性。
Construction method of cantilever pile foundation pit support
The invention discloses a construction method of a cantilever pile foundation pit support. The construction method comprises the following steps that a groove is excavated, and a stirring machine is in place; arranging foundation pit monitoring points, and monitoring the foundation pit; a three-axis stirring pile is constructed to serve as a waterproof curtain; and a prestressed pipe pile cantilever support is constructed as a pipe pile support, and the pipe pile support is matched with the waterproof curtain to form an enclosure structure. Compared with conventional foundation pit supporting forms such as cement mixing piles, steel pipe piles, SMW construction method piles and cast-in-situ bored piles, the prestressed pipe pile cantilever supporting form has the advantages of being short in construction period, convenient and fast to construct, safe, reliable, reasonable in cost and the like, adaptability to special geological conditions such as deep and thick sludge is high, the design thought is developed, and the construction period is shortened. And a complete foundation pit support is formed by the three-axis cement mixing pile waterproof curtain and the three-axis cement mixing pile waterproof curtain, so that the stability and the safety of the foundation pit are ensured.
本发明公开了一种悬臂桩基坑支护的施工方法，包括以下步骤：开挖沟槽，搅拌机就位；布置基坑监测点，对基坑进行监测；施工三轴搅拌桩作为止水帷幕；施工预应力管桩悬臂支护作为管桩支护，管桩支护与止水帷幕配合形成围护结构。预应力管桩悬臂支护形式与常规水泥搅拌桩、钢管桩、SMW工法桩和钻孔灌注桩等基坑支护形式对比，具有较好的工期短、施工便捷、安全可靠、成本合理等特点，深厚淤泥质等特殊地质条件适应性强，开拓了设计思路，并与三轴水泥搅拌桩止水帷幕形成完整的基坑支护，保证了基坑稳定性和安全性。
Construction method of cantilever pile foundation pit support
一种悬臂桩基坑支护的施工方法
BAO ZHEN (author) / LIU WENBIN (author) / YUAN JINZHAO (author) / HU YAO (author) / CUI XICHENG (author) / TIAN BIAO (author)
2023-05-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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