A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a tower crane foundation pit pressure relief grouting construction method. The tower crane foundation pit pressure relief grouting construction method sequentially comprises the technological steps of base layer cleaning, grouting part checking, hole arranging, hole drilling, hole cleaning and protecting, nozzle arranging, slurry preparing, grouting and repeated grouting checking, consolidation and nozzle dismounting. The problems that the side wall of a tower crane foundation pit is damaged by water pressure and water leakage or water gushing is caused are solved. Slurry is uniformly injected into a stratum through a grouting pipe according to the hydraulic, air pressure and dynamics principles, the slurry drives away moisture and air among soil particles or in rock fractures in the modes of filling, permeating, compacting and the like, original loose soil particles or cracks are cemented into a whole through the slurry, a stone body which is novel in structure, high in strength, high in waterproof performance and good in chemical stability is formed, the purposes of improving the waterproofness and bearing capacity of a foundation and ensuring that the side wall of the tower crane foundation pit is not impacted by water pressure are achieved, after construction is completed, no water leaks out of the side wall of the tower crane foundation pit through observation for 48-72 hours, and therefore, the non-seepage and non-leakage effect can be completely achieved.
本发明公开了塔吊基坑泄压灌浆施工方法，工艺流程依次为：基层清理→核对灌浆部位→布孔→钻孔→清孔、护孔→布嘴→配置浆液→灌浆，反复检查灌浆→固结→拆嘴；针对水压对塔吊基坑侧壁造成破坏，产生渗漏水或涌水问题，通过液压、气压和动力学原理，通过注浆管把浆液均匀地注入地层中，浆液以充实、渗透和挤密等方式，赶走土颗粒间或岩石裂隙中的水分和空气后，浆液将原来松散的土粒或裂隙胶结成一个整体，形成一个结构新、强度大、防水性能高和化学稳定良好的“结石体”，达到提高地基的不透水性和承载力，确保塔吊基坑侧壁不受水压的冲击，施工完成后，经过48~72小时观察塔吊基坑侧壁无水渗出，从而能够完全达到不渗不漏的效果。
The invention discloses a tower crane foundation pit pressure relief grouting construction method. The tower crane foundation pit pressure relief grouting construction method sequentially comprises the technological steps of base layer cleaning, grouting part checking, hole arranging, hole drilling, hole cleaning and protecting, nozzle arranging, slurry preparing, grouting and repeated grouting checking, consolidation and nozzle dismounting. The problems that the side wall of a tower crane foundation pit is damaged by water pressure and water leakage or water gushing is caused are solved. Slurry is uniformly injected into a stratum through a grouting pipe according to the hydraulic, air pressure and dynamics principles, the slurry drives away moisture and air among soil particles or in rock fractures in the modes of filling, permeating, compacting and the like, original loose soil particles or cracks are cemented into a whole through the slurry, a stone body which is novel in structure, high in strength, high in waterproof performance and good in chemical stability is formed, the purposes of improving the waterproofness and bearing capacity of a foundation and ensuring that the side wall of the tower crane foundation pit is not impacted by water pressure are achieved, after construction is completed, no water leaks out of the side wall of the tower crane foundation pit through observation for 48-72 hours, and therefore, the non-seepage and non-leakage effect can be completely achieved.
本发明公开了塔吊基坑泄压灌浆施工方法，工艺流程依次为：基层清理→核对灌浆部位→布孔→钻孔→清孔、护孔→布嘴→配置浆液→灌浆，反复检查灌浆→固结→拆嘴；针对水压对塔吊基坑侧壁造成破坏，产生渗漏水或涌水问题，通过液压、气压和动力学原理，通过注浆管把浆液均匀地注入地层中，浆液以充实、渗透和挤密等方式，赶走土颗粒间或岩石裂隙中的水分和空气后，浆液将原来松散的土粒或裂隙胶结成一个整体，形成一个结构新、强度大、防水性能高和化学稳定良好的“结石体”，达到提高地基的不透水性和承载力，确保塔吊基坑侧壁不受水压的冲击，施工完成后，经过48~72小时观察塔吊基坑侧壁无水渗出，从而能够完全达到不渗不漏的效果。
Tower crane foundation pit pressure relief grouting construction method
塔吊基坑泄压灌浆施工方法
2021-07-30
Patent
Electronic Resource
Chinese
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