Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation pit supporting method for pipe-following construction of steel pipe piles in stone nitrate area
The invention relates to the technical field of civil construction, in particular to a foundation pit supporting method for pipe-following construction of steel pipe piles in a stone nitrate area. Comprising the following steps of hole position measuring, drilling machine in-place, casing-following drilling construction, steel pipe pile machining, steel pipe pile sinking, grouting and grout supplementing. The grout overflow holes are formed in the steel pipe piles, when grouting is conducted in the steel pipe piles, grout flows out of the grout overflow holes to surrounding soil bodies along with gradual pulling-out of the sleeves, the surrounding soil bodies are reinforced after the grout is solidified, the effect of improving the soil layer stability on loose rock-soil layers such as stone nitrate areas is achieved, and the better supporting effect is achieved; meanwhile, the influence caused by hole collapse is reduced; the sleeve is pulled out after being used, material waste is avoided, and the effect of repeated utilization is achieved; a liner tube is fixed at the joint of two sections of steel pipe piles, so that the rigidity and strength of the joint are improved.
本发明涉及土建施工技术领域，具体为一种石硝区钢管桩跟管施工的基坑支护方法；包括以下步骤：测定孔位、钻机就位、跟管钻进施工、加工钢管桩、沉入钢管桩、注浆、补浆。在钢管桩上开溢浆孔，往钢管桩内注浆时，随着套管的逐渐拔出，浆液会从溢浆孔流出到周围的土体，待浆液凝固，等于把周围的土体进行了加固，对于石硝区等松散的岩土层具有提高土层稳定性的作用，起到更好的支护作用，同时减少塌孔造成的影响；套管使用完后拔出，避免材料浪费，达到重复利用的效果；在两节钢管桩连接处固定有衬管，增加连接处的刚度与强度。
Foundation pit supporting method for pipe-following construction of steel pipe piles in stone nitrate area
The invention relates to the technical field of civil construction, in particular to a foundation pit supporting method for pipe-following construction of steel pipe piles in a stone nitrate area. Comprising the following steps of hole position measuring, drilling machine in-place, casing-following drilling construction, steel pipe pile machining, steel pipe pile sinking, grouting and grout supplementing. The grout overflow holes are formed in the steel pipe piles, when grouting is conducted in the steel pipe piles, grout flows out of the grout overflow holes to surrounding soil bodies along with gradual pulling-out of the sleeves, the surrounding soil bodies are reinforced after the grout is solidified, the effect of improving the soil layer stability on loose rock-soil layers such as stone nitrate areas is achieved, and the better supporting effect is achieved; meanwhile, the influence caused by hole collapse is reduced; the sleeve is pulled out after being used, material waste is avoided, and the effect of repeated utilization is achieved; a liner tube is fixed at the joint of two sections of steel pipe piles, so that the rigidity and strength of the joint are improved.
本发明涉及土建施工技术领域，具体为一种石硝区钢管桩跟管施工的基坑支护方法；包括以下步骤：测定孔位、钻机就位、跟管钻进施工、加工钢管桩、沉入钢管桩、注浆、补浆。在钢管桩上开溢浆孔，往钢管桩内注浆时，随着套管的逐渐拔出，浆液会从溢浆孔流出到周围的土体，待浆液凝固，等于把周围的土体进行了加固，对于石硝区等松散的岩土层具有提高土层稳定性的作用，起到更好的支护作用，同时减少塌孔造成的影响；套管使用完后拔出，避免材料浪费，达到重复利用的效果；在两节钢管桩连接处固定有衬管，增加连接处的刚度与强度。
Foundation pit supporting method for pipe-following construction of steel pipe piles in stone nitrate area
一种石硝区钢管桩跟管施工的基坑支护方法
LI YONG (Autor:in) / FENG XIAOQIANG (Autor:in) / ZHOU XIANGLONG (Autor:in) / XU RUI (Autor:in) / ZHANG HUANAN (Autor:in)
09.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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