A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of large-aperture super-long bridge pile foundation close to metro section
The invention discloses a construction method of a large-aperture super-long bridge pile foundation adjacent to a metro section, and solves the problems that the construction adjacent to the metro section has high requirements on ground subsidence and the overall construction difficulty is high. The construction method comprises the following steps: S1, construction preparation; s2, a drilling machine is in place; s3, drilling is conducted; s4, performing pore-forming inspection; s5, drilling waste slag is treated, and slurry is transported outwards; s6, hole cleaning is conducted, specifically, a slurry changing hole cleaning method is adopted for hole cleaning, that is, a drill bit stops drilling footage, a pump set continues to operate, slurry continues to circulate, sediment at the bottom of the hole is carried out of the hole, and the purpose of sediment cleaning is achieved till the concentration and the sand content of the slurry in the hole meet the standard requirements; s7, a reinforcement cage is manufactured and installed; and S8, underwater concrete pouring is conducted.
一种紧邻地铁区间大孔径超长桥梁桩基的施工方法，解决紧临地铁区间施工，对地面沉降要求高，整体施工难度较大的问题。其包括如下步骤：S1，施工准备；S2，钻机就位；S3，钻孔；S4，成孔检查；S5，钻孔弃渣处理及泥浆外运；S6，清孔，清孔采用换浆清孔方法，即钻头停止进尺，泵组继续运行，使泥浆继续循环，以便携带孔底沉渣至孔外，起到清除沉渣的目的，直至孔内泥浆浓度、含砂率符合规范要求；S7，钢筋笼制作及安装；S8，水下混凝土浇筑。
Construction method of large-aperture super-long bridge pile foundation close to metro section
The invention discloses a construction method of a large-aperture super-long bridge pile foundation adjacent to a metro section, and solves the problems that the construction adjacent to the metro section has high requirements on ground subsidence and the overall construction difficulty is high. The construction method comprises the following steps: S1, construction preparation; s2, a drilling machine is in place; s3, drilling is conducted; s4, performing pore-forming inspection; s5, drilling waste slag is treated, and slurry is transported outwards; s6, hole cleaning is conducted, specifically, a slurry changing hole cleaning method is adopted for hole cleaning, that is, a drill bit stops drilling footage, a pump set continues to operate, slurry continues to circulate, sediment at the bottom of the hole is carried out of the hole, and the purpose of sediment cleaning is achieved till the concentration and the sand content of the slurry in the hole meet the standard requirements; s7, a reinforcement cage is manufactured and installed; and S8, underwater concrete pouring is conducted.
一种紧邻地铁区间大孔径超长桥梁桩基的施工方法，解决紧临地铁区间施工，对地面沉降要求高，整体施工难度较大的问题。其包括如下步骤：S1，施工准备；S2，钻机就位；S3，钻孔；S4，成孔检查；S5，钻孔弃渣处理及泥浆外运；S6，清孔，清孔采用换浆清孔方法，即钻头停止进尺，泵组继续运行，使泥浆继续循环，以便携带孔底沉渣至孔外，起到清除沉渣的目的，直至孔内泥浆浓度、含砂率符合规范要求；S7，钢筋笼制作及安装；S8，水下混凝土浇筑。
Construction method of large-aperture super-long bridge pile foundation close to metro section
一种紧临地铁区间大孔径超长桥梁桩基的施工方法
WAN ZHIDONG (author) / MEI WEI (author) / ZENG JIAN (author) / WANG QIANLI (author) / HUANG XIWU (author) / CHEN WEI (author) / LI PENGHUI (author) / ZHAO DAIPENG (author) / WANG ZHIWEN (author) / LI ZHIWEN (author)
2023-01-06
Patent
Electronic Resource
Chinese
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