A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for lower storey adding of existing building
The invention provides a construction method for lower storey adding of an existing building. The construction method comprises the steps that S10, a plurality of first pilot tunnels are formed below the existing building; S20, a first embedded part is installed above a side pile reinforcement cage; S30, the side pile reinforcement cage and the connecting section of the first embedded part are poured to form a side pile, and the mounting section of the first embedded part is exposed out of the side pile; S40, a first lead screw is mounted on the mounting section of each first embedded part; S50, leveling treatment is conducted on the inner surface of the top wall of a side pilot tunnel primary support; S60, a first supporting beam is installed on the top wall of the side pilot tunnel primary support; S70, a first axial force meter is arranged between the first supporting beam and the first lead screw; and S80, the first lead screw is adjusted so that the numerical value of the first axial force meter can be kept within the first preset range. According to the construction method, the problem that in the prior art, an existing building is prone to settling downwards can be effectively solved.
本发明提供了一种既有建筑下增层的施工方法，包括：步骤S10：在既有建筑的下方形成多个第一导洞；步骤S20：在边桩钢筋笼上方安装第一预埋件；步骤S30：对边桩钢筋笼和第一预埋件的连接段进行浇注以形成边桩，并使第一预埋件的安装段外露于边桩；步骤S40：在每个第一预埋件的安装段上安装第一丝杠；步骤S50：对边导洞初期支护的顶壁的内表面进行找平处理；步骤S60：在边导洞初期支护的顶壁上安装第一支撑梁；步骤S70：在第一支撑梁和第一丝杠之间设置第一轴力计；步骤S80：调节第一丝杠使第一轴力计的数值保持在第一预设范围内。应用本发明的技术方案能够有效地解决现有技术中的既有建筑容易向下沉降的问题。
Construction method for lower storey adding of existing building
The invention provides a construction method for lower storey adding of an existing building. The construction method comprises the steps that S10, a plurality of first pilot tunnels are formed below the existing building; S20, a first embedded part is installed above a side pile reinforcement cage; S30, the side pile reinforcement cage and the connecting section of the first embedded part are poured to form a side pile, and the mounting section of the first embedded part is exposed out of the side pile; S40, a first lead screw is mounted on the mounting section of each first embedded part; S50, leveling treatment is conducted on the inner surface of the top wall of a side pilot tunnel primary support; S60, a first supporting beam is installed on the top wall of the side pilot tunnel primary support; S70, a first axial force meter is arranged between the first supporting beam and the first lead screw; and S80, the first lead screw is adjusted so that the numerical value of the first axial force meter can be kept within the first preset range. According to the construction method, the problem that in the prior art, an existing building is prone to settling downwards can be effectively solved.
本发明提供了一种既有建筑下增层的施工方法，包括：步骤S10：在既有建筑的下方形成多个第一导洞；步骤S20：在边桩钢筋笼上方安装第一预埋件；步骤S30：对边桩钢筋笼和第一预埋件的连接段进行浇注以形成边桩，并使第一预埋件的安装段外露于边桩；步骤S40：在每个第一预埋件的安装段上安装第一丝杠；步骤S50：对边导洞初期支护的顶壁的内表面进行找平处理；步骤S60：在边导洞初期支护的顶壁上安装第一支撑梁；步骤S70：在第一支撑梁和第一丝杠之间设置第一轴力计；步骤S80：调节第一丝杠使第一轴力计的数值保持在第一预设范围内。应用本发明的技术方案能够有效地解决现有技术中的既有建筑容易向下沉降的问题。
Construction method for lower storey adding of existing building
既有建筑下增层的施工方法
LEI SHENGXIANG (author) / WANG ZHIKANG (author) / DING ZHENGQUAN (author) / WANG HUAWEI (author) / LI XIUDONG (author) / ZHANG ZHIWEI (author) / ZHENG KAI (author) / LIANG HUAHUA (author) / XI JIQING (author) / LIU GUOLONG (author)
2021-07-13
Patent
Electronic Resource
Chinese
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