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A platform for research: civil engineering, architecture and urbanism
Complex stratum diaphragm wall construction method
The invention relates to a complex stratum diaphragm wall construction method, which belongs to the technical field of diaphragm wall construction, and is characterized in that specially designed square pipe piles are used for construction, and the construction mainly comprises the following steps: driving a group of hollow square pile pipes into a diaphragm wall construction area one by one; and along the construction design route of the diaphragm wall, pipe sinking construction of the next set of square pile pipes is conducted, the pile pipes are pulled out one by one from one side, a diaphragm wall pouring area is formed, concrete is poured after the prefabricated reinforcement cage is sunk into the pouring area, and a reinforced concrete wall body is formed. The square pipe piles are driven into a construction area of the underground diaphragm wall one by one, the underground diaphragm wall construction groove is generated through extrusion of the pipe piles on the stratum, the stratum density on the two sides of the groove is increased, the collapse and deformation conditions occurring when a deep groove is excavated in the complex stratum are reduced, and the stability of the underground diaphragm wall is improved. In addition, the corrugated pipe wall of the pipe pile can enable soil layers to slide along the radian of the corrugated pipe wall due to the difference of the soil layers between the stratums when the pile is sunk to extrude the stratums, so that the uniformity of the soil layers on the two sides of the deep groove is improved, and the deformation during excavation is reduced.
本发明涉及一种复杂地层地连墙施工方法，属于地连墙施工技术领域，本发明使用特殊设计的方形管桩进行施工，施工主要包括将一组空心的方形桩管逐一打入地连墙施工区域、在一组方形桩管沉管施工完毕后，沿着地连墙的施工设计路线，进行下一组方形桩管的沉管施工和逐一单边拔出桩管，形成地连墙浇筑区，向浇筑区沉入预制钢筋笼后浇筑混凝土，形成钢筋混凝土墙体三个主要步骤；本发明通过用方形管桩逐一打入地连墙的施工区，通过管桩对地层的挤压产生地连墙施工沟槽，使沟槽两侧的地层密度变大，降低复杂地层在开挖深槽时出现的塌方、变形情况，增加地连墙的稳定性。此外管桩的波纹状管壁可在沉桩挤压地层时，地层之间土层的差异会使土层沿着波纹管壁的弧度产生滑动，增加深槽两侧土层的均匀性，降低开挖时的变形。
Complex stratum diaphragm wall construction method
The invention relates to a complex stratum diaphragm wall construction method, which belongs to the technical field of diaphragm wall construction, and is characterized in that specially designed square pipe piles are used for construction, and the construction mainly comprises the following steps: driving a group of hollow square pile pipes into a diaphragm wall construction area one by one; and along the construction design route of the diaphragm wall, pipe sinking construction of the next set of square pile pipes is conducted, the pile pipes are pulled out one by one from one side, a diaphragm wall pouring area is formed, concrete is poured after the prefabricated reinforcement cage is sunk into the pouring area, and a reinforced concrete wall body is formed. The square pipe piles are driven into a construction area of the underground diaphragm wall one by one, the underground diaphragm wall construction groove is generated through extrusion of the pipe piles on the stratum, the stratum density on the two sides of the groove is increased, the collapse and deformation conditions occurring when a deep groove is excavated in the complex stratum are reduced, and the stability of the underground diaphragm wall is improved. In addition, the corrugated pipe wall of the pipe pile can enable soil layers to slide along the radian of the corrugated pipe wall due to the difference of the soil layers between the stratums when the pile is sunk to extrude the stratums, so that the uniformity of the soil layers on the two sides of the deep groove is improved, and the deformation during excavation is reduced.
本发明涉及一种复杂地层地连墙施工方法，属于地连墙施工技术领域，本发明使用特殊设计的方形管桩进行施工，施工主要包括将一组空心的方形桩管逐一打入地连墙施工区域、在一组方形桩管沉管施工完毕后，沿着地连墙的施工设计路线，进行下一组方形桩管的沉管施工和逐一单边拔出桩管，形成地连墙浇筑区，向浇筑区沉入预制钢筋笼后浇筑混凝土，形成钢筋混凝土墙体三个主要步骤；本发明通过用方形管桩逐一打入地连墙的施工区，通过管桩对地层的挤压产生地连墙施工沟槽，使沟槽两侧的地层密度变大，降低复杂地层在开挖深槽时出现的塌方、变形情况，增加地连墙的稳定性。此外管桩的波纹状管壁可在沉桩挤压地层时，地层之间土层的差异会使土层沿着波纹管壁的弧度产生滑动，增加深槽两侧土层的均匀性，降低开挖时的变形。
Complex stratum diaphragm wall construction method
一种复杂地层地连墙施工方法
ZHANG LUONING (author) / XIE FENG (author) / PEI CHAOWU (author) / KUANG HAITAO (author) / YU LI (author) / YANG QIN (author)
2024-07-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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