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A platform for research: civil engineering, architecture and urbanism
Construction method of high-pressure jet grouting pile pre-reinforced rotary digging hole-forming cast-in-place pile
The invention relates to a construction method of a high-pressure jet grouting pile pre-reinforced rotary excavating hole-forming cast-in-place pile. The construction method comprises the steps that a high-pressure jet grouting pile profile steel rail system is installed, and the high-pressure jet grouting pile is constructed; constructing a cushion layer; constructing a cast-in-place pile steel casing; hoisting construction of a cast-in-place pile reinforcement cage; and carrying out cast-in-place pile concrete construction. The construction method has the beneficial effects that through the pile foundation construction channel and pile position and pile periphery pre-reinforcement, construction of the deep soft soil foundation cast-in-place pile is effectively guaranteed; through the deep soft soil high-pressure jet grouting pile profile steel rail type construction platform, the construction efficiency of high-pressure jet grouting piles is effectively improved; the pre-embedded unit type steel casing fixing ring is adopted, so that the problem that the position of the steel casing is easy to change after the steel casing is lowered is effectively solved; the reinforcement cage hoisting construction guide frame is adopted, so that the reinforcement cage hoisting construction efficiency is greatly improved; a concrete pouring height accurate control charging barrel and a lifting type sensor concrete pouring height accurate control technology are adopted, and the pile foundation concrete pouring process is accurately mastered.
本发明涉及一种高压旋喷桩预加固旋挖成孔灌注桩的施工方法，包括步骤：高压旋喷桩型钢轨道系统安装及高压旋喷桩施工；垫层施工；灌注桩钢护筒施工；灌注桩钢筋笼吊装施工；灌注桩混凝土施工。本发明的有益效果是：通过桩基施工通道和桩位桩周预加固，有效保证深厚软土地基灌注桩的施工；通过深厚软土高压旋喷桩型钢轨道式施工平台，有效提高了高压旋喷桩的施工效率；采用预埋入单元式钢护筒固定环，有效解决了钢护筒下放后位置容易变动的问题；采用钢筋笼吊装施工导向架，大大提高了钢筋笼吊装施工效率；采用混凝土浇筑高度精确控制料筒及提升式传感器混凝土浇筑高度精确控制技术，精确掌握桩基混凝土浇筑进程。
Construction method of high-pressure jet grouting pile pre-reinforced rotary digging hole-forming cast-in-place pile
The invention relates to a construction method of a high-pressure jet grouting pile pre-reinforced rotary excavating hole-forming cast-in-place pile. The construction method comprises the steps that a high-pressure jet grouting pile profile steel rail system is installed, and the high-pressure jet grouting pile is constructed; constructing a cushion layer; constructing a cast-in-place pile steel casing; hoisting construction of a cast-in-place pile reinforcement cage; and carrying out cast-in-place pile concrete construction. The construction method has the beneficial effects that through the pile foundation construction channel and pile position and pile periphery pre-reinforcement, construction of the deep soft soil foundation cast-in-place pile is effectively guaranteed; through the deep soft soil high-pressure jet grouting pile profile steel rail type construction platform, the construction efficiency of high-pressure jet grouting piles is effectively improved; the pre-embedded unit type steel casing fixing ring is adopted, so that the problem that the position of the steel casing is easy to change after the steel casing is lowered is effectively solved; the reinforcement cage hoisting construction guide frame is adopted, so that the reinforcement cage hoisting construction efficiency is greatly improved; a concrete pouring height accurate control charging barrel and a lifting type sensor concrete pouring height accurate control technology are adopted, and the pile foundation concrete pouring process is accurately mastered.
本发明涉及一种高压旋喷桩预加固旋挖成孔灌注桩的施工方法，包括步骤：高压旋喷桩型钢轨道系统安装及高压旋喷桩施工；垫层施工；灌注桩钢护筒施工；灌注桩钢筋笼吊装施工；灌注桩混凝土施工。本发明的有益效果是：通过桩基施工通道和桩位桩周预加固，有效保证深厚软土地基灌注桩的施工；通过深厚软土高压旋喷桩型钢轨道式施工平台，有效提高了高压旋喷桩的施工效率；采用预埋入单元式钢护筒固定环，有效解决了钢护筒下放后位置容易变动的问题；采用钢筋笼吊装施工导向架，大大提高了钢筋笼吊装施工效率；采用混凝土浇筑高度精确控制料筒及提升式传感器混凝土浇筑高度精确控制技术，精确掌握桩基混凝土浇筑进程。
Construction method of high-pressure jet grouting pile pre-reinforced rotary digging hole-forming cast-in-place pile
高压旋喷桩预加固旋挖成孔灌注桩的施工方法
RONG HAISHENG (author) / LI MING (author) / BAO CHUNWEI (author) / WANG CHUANFU (author) / QIAN JIANG (author) / FENG XIAOJIAN (author) / BIAN GUOYONG (author) / LI SHENGYUAN (author)
2023-09-12
Patent
Electronic Resource
Chinese
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