Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rotary jet grouting pile diameter-expanding jet-assisting construction and pile diameter detection method
The invention discloses a jet grouting pile diameter-expanding jet-assisted construction and pile diameter detection method, which is characterized in that the hole diameter is expanded in a mechanical mode to promote a jet grouting contact wall surface to generate shear failure, high-pressure jet grouting linearly cuts a stratum, and jet grouting is assisted to return so as to realize full stirring of the reinforced stratum in the jet grouting construction. According to the method, the diameter-expanding and spraying-assisting interval is designed according to the pile diameter, the diameter-expanding and spraying-assisting device is used as a pile diameter detection means before pile forming, if the spot check position cannot meet the pile diameter requirement, re-spraying can be directly carried out after diameter expanding of the section, and while the construction efficiency of the jet grouting pile is ensured, the pile forming quality is improved, and real-time detection and processing are achieved; the construction efficiency and the pile forming quality of the jet grouting pile can be remarkably improved.
本发明公开一种旋喷桩扩径助喷施工及桩径检测方法，以机械方式扩大孔径促使旋喷触壁面发生剪切破坏，高压喷浆线性线性切割地层，辅助旋喷回退以实现旋喷施工对被加固地层充分搅拌。根据桩径设计扩径助喷间隔，在成桩前利用扩径助喷装置作为桩径检测手段，若抽检位置没能达到桩径要求，可直接于该段扩径后复喷，实现了在确保旋喷桩施工效率的同时，提高成桩质量、实时检测并处理；本发明可显著提高旋喷桩施工效率和成桩质量。
Rotary jet grouting pile diameter-expanding jet-assisting construction and pile diameter detection method
The invention discloses a jet grouting pile diameter-expanding jet-assisted construction and pile diameter detection method, which is characterized in that the hole diameter is expanded in a mechanical mode to promote a jet grouting contact wall surface to generate shear failure, high-pressure jet grouting linearly cuts a stratum, and jet grouting is assisted to return so as to realize full stirring of the reinforced stratum in the jet grouting construction. According to the method, the diameter-expanding and spraying-assisting interval is designed according to the pile diameter, the diameter-expanding and spraying-assisting device is used as a pile diameter detection means before pile forming, if the spot check position cannot meet the pile diameter requirement, re-spraying can be directly carried out after diameter expanding of the section, and while the construction efficiency of the jet grouting pile is ensured, the pile forming quality is improved, and real-time detection and processing are achieved; the construction efficiency and the pile forming quality of the jet grouting pile can be remarkably improved.
本发明公开一种旋喷桩扩径助喷施工及桩径检测方法，以机械方式扩大孔径促使旋喷触壁面发生剪切破坏，高压喷浆线性线性切割地层，辅助旋喷回退以实现旋喷施工对被加固地层充分搅拌。根据桩径设计扩径助喷间隔，在成桩前利用扩径助喷装置作为桩径检测手段，若抽检位置没能达到桩径要求，可直接于该段扩径后复喷，实现了在确保旋喷桩施工效率的同时，提高成桩质量、实时检测并处理；本发明可显著提高旋喷桩施工效率和成桩质量。
Rotary jet grouting pile diameter-expanding jet-assisting construction and pile diameter detection method
一种旋喷桩扩径助喷施工及桩径检测方法
SU YANJUN (Autor:in) / DAI WUKUI (Autor:in) / ZHAO ZHONGLIANG (Autor:in) / YANG JIANJUN (Autor:in) / XI ZHILIANG (Autor:in) / HUANG ZUTENG (Autor:in) / MENG QIANFENG (Autor:in) / SUN HAIPENG (Autor:in) / TIAN HUIWEN (Autor:in)
08.03.2022
Patent
Elektronische Ressource
Chinesisch
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