A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Layered grouting reinforcement method for low-clearance existing building foundation
The invention discloses a layered grouting reinforcement method for a low-clearance existing building foundation. The layered grouting reinforcement method comprises the following steps of hole site measuring and placing, shallow layer hole guiding, shallow layer grouting pipe descending, middle layer hole guiding, middle layer grouting pipe descending, deep layer hole guiding, deep layer grouting pipe descending, layered circulating grouting and hole sealing. Layered circulating splitting grouting reinforcement can be conducted on an existing building foundation in a low clearance environment, a quick-setting early-strength double-fluid grouting auxiliary drilling and grouting integrated drilling machine is adopted for one-time hole forming and grouting pipe descending, the grouting layer position is adjusted in real time according to the reinforcement effect, the influence of grouting reinforcement construction on the environment is reduced, and the grouting efficiency and effect are greatly improved.
本发明公开了一种低净空既有建筑地基分层注浆加固方法，包括如下步骤：测放孔位、引浅层孔、下浅层注浆管、引中层孔、下中层注浆管、引深层孔、下深层注浆管、分层循环注浆、封孔。本发明能够在低净空环境下对既有建筑地基分层循环劈裂注浆加固，采用快凝早强双液注浆辅助钻注一体钻机一次性成孔和下注浆管，并根据加固效果实时调整注浆层位，减小注浆加固施工对环境的影响，注浆效率和效果大大提高。
Layered grouting reinforcement method for low-clearance existing building foundation
The invention discloses a layered grouting reinforcement method for a low-clearance existing building foundation. The layered grouting reinforcement method comprises the following steps of hole site measuring and placing, shallow layer hole guiding, shallow layer grouting pipe descending, middle layer hole guiding, middle layer grouting pipe descending, deep layer hole guiding, deep layer grouting pipe descending, layered circulating grouting and hole sealing. Layered circulating splitting grouting reinforcement can be conducted on an existing building foundation in a low clearance environment, a quick-setting early-strength double-fluid grouting auxiliary drilling and grouting integrated drilling machine is adopted for one-time hole forming and grouting pipe descending, the grouting layer position is adjusted in real time according to the reinforcement effect, the influence of grouting reinforcement construction on the environment is reduced, and the grouting efficiency and effect are greatly improved.
本发明公开了一种低净空既有建筑地基分层注浆加固方法，包括如下步骤：测放孔位、引浅层孔、下浅层注浆管、引中层孔、下中层注浆管、引深层孔、下深层注浆管、分层循环注浆、封孔。本发明能够在低净空环境下对既有建筑地基分层循环劈裂注浆加固，采用快凝早强双液注浆辅助钻注一体钻机一次性成孔和下注浆管，并根据加固效果实时调整注浆层位，减小注浆加固施工对环境的影响，注浆效率和效果大大提高。
Layered grouting reinforcement method for low-clearance existing building foundation
一种低净空既有建筑地基分层注浆加固方法
ZHOU JIANWEI (author) / PENG TAO (author) / CHENG CHANGLI (author) / FU HONGLIN (author) / LI BING (author) / DENG GUORUI (author)
2024-07-12
Patent
Electronic Resource
Chinese
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