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A platform for research: civil engineering, architecture and urbanism
Construction method for grid type grouting reinforcement of independent pile foundation
The invention provides a construction method for grid type grouting reinforcement of an independent pile foundation, belongs to the field of building construction, and provides a construction method suitable for reinforcing a foundation of a large-span independent pile foundation. Construction is carried out by adopting a grid type grouting reinforcement method, and when grouting reinforcement is carried out on the pile foundation in each grid unit, the mode that the column foundation is slowly surrounded from outside to inside until the column foundation is reinforced to the position under the independent column foundation is adopted, the soil body, close to the pile foundation, of the pile foundation is gradually compacted, disturbance to the pile foundation soil is reduced to the maximum extent, adverse effects caused by additional settlement are reduced, and the pile side friction resistance and the pile end bearing capacity are continuously improved. The method belongs to a construction method which does not influence production, does not excavate the ground, is small in size of construction equipment, does not occupy space and is small in construction operation dynamic and static state.
本发明提供一种独立桩基栅格式注浆加固的施工方法，属于建筑施工领域，以提供一种适用于大跨度独立桩基础地基加固的施工方法。通过采用栅格式注浆加固法进行施工，并在对每个栅格单元中的桩基进行注浆加固时采用从外向内对柱基慢慢形成包围，直到加固至独立柱基正下方的方式，逐渐对桩基近身土体形成挤密，最大限度减少对桩基土的扰动，降低附加沉降带来的不利影响，不断提高桩侧摩阻力和桩端承载力。本方法属于一种既不影响生产，也不开挖地面，施工设备体型小，不占用空间，施工作业动静小的施工方法。
Construction method for grid type grouting reinforcement of independent pile foundation
The invention provides a construction method for grid type grouting reinforcement of an independent pile foundation, belongs to the field of building construction, and provides a construction method suitable for reinforcing a foundation of a large-span independent pile foundation. Construction is carried out by adopting a grid type grouting reinforcement method, and when grouting reinforcement is carried out on the pile foundation in each grid unit, the mode that the column foundation is slowly surrounded from outside to inside until the column foundation is reinforced to the position under the independent column foundation is adopted, the soil body, close to the pile foundation, of the pile foundation is gradually compacted, disturbance to the pile foundation soil is reduced to the maximum extent, adverse effects caused by additional settlement are reduced, and the pile side friction resistance and the pile end bearing capacity are continuously improved. The method belongs to a construction method which does not influence production, does not excavate the ground, is small in size of construction equipment, does not occupy space and is small in construction operation dynamic and static state.
本发明提供一种独立桩基栅格式注浆加固的施工方法，属于建筑施工领域，以提供一种适用于大跨度独立桩基础地基加固的施工方法。通过采用栅格式注浆加固法进行施工，并在对每个栅格单元中的桩基进行注浆加固时采用从外向内对柱基慢慢形成包围，直到加固至独立柱基正下方的方式，逐渐对桩基近身土体形成挤密，最大限度减少对桩基土的扰动，降低附加沉降带来的不利影响，不断提高桩侧摩阻力和桩端承载力。本方法属于一种既不影响生产，也不开挖地面，施工设备体型小，不占用空间，施工作业动静小的施工方法。
Construction method for grid type grouting reinforcement of independent pile foundation
独立桩基栅格式注浆加固的施工方法
CHEN YAN (author) / ZHANG YANGJUAN (author) / LIU ZHIFANG (author) / GAO ZIMING (author)
2021-06-11
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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