Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for rapid hole forming through cooperation of chemical slurry and rotary drilling rig
The invention relates to the technical field of building construction, and particularly relates to a construction method for rapid hole forming through cooperation of chemical slurry and a rotary drilling rig. The method comprises the following steps of measuring and lofting of a pile position; embedding a pile casing; preparing the rotary drilling rig; slurry preparation and rotary digging hole forming; self-inspection of formed holes; lowering a reinforcement cage; lowering a guide pipe; pouring underwater concrete; and pulling out the pile casing. According to the chemical slurry, the stability of hole walls of a sand layer and a sludge layer can be improved, the use amount of the chemical slurry and the viscosity of the slurry are adjusted according to different geology, the wall protection performance of the slurry is guaranteed, the problems of low pile foundation drilling efficiency, hole forming difficulty and hole collapse are solved, the slurry can enable drilling cuttings to rapidly precipitate, secondary hole cleaning is not needed, the construction efficiency is improved, in addition, the slurry can be automatically hydrolyzed after standing for two days, has no pollution to the environment, and is suitable for various geological conditions.
本发明涉及建筑施工技术领域，尤其是涉及一种化学泥浆配合旋挖钻机快速成孔的施工方法，包括以下步骤：桩位测量放样；护筒埋设；旋挖钻机准备；浆液配制及旋挖成孔；成孔自检；钢筋笼下放；导管下放；水下混凝土灌注；护筒拔出。本发明化学泥浆能够提高砂层、淤泥质层孔壁的稳定性，根据地质的不同调整化学泥浆的用量、浆液的粘度，保障浆液的护壁性能，解决桩基钻孔效率低、成孔困难、塌孔的问题，且浆液还能够让钻屑迅速沉淀，无需进行二次清孔，提高施工效率，此外，浆液静置两天后可自动水解，对环境无污染，适用于各种地质条件。
Construction method for rapid hole forming through cooperation of chemical slurry and rotary drilling rig
The invention relates to the technical field of building construction, and particularly relates to a construction method for rapid hole forming through cooperation of chemical slurry and a rotary drilling rig. The method comprises the following steps of measuring and lofting of a pile position; embedding a pile casing; preparing the rotary drilling rig; slurry preparation and rotary digging hole forming; self-inspection of formed holes; lowering a reinforcement cage; lowering a guide pipe; pouring underwater concrete; and pulling out the pile casing. According to the chemical slurry, the stability of hole walls of a sand layer and a sludge layer can be improved, the use amount of the chemical slurry and the viscosity of the slurry are adjusted according to different geology, the wall protection performance of the slurry is guaranteed, the problems of low pile foundation drilling efficiency, hole forming difficulty and hole collapse are solved, the slurry can enable drilling cuttings to rapidly precipitate, secondary hole cleaning is not needed, the construction efficiency is improved, in addition, the slurry can be automatically hydrolyzed after standing for two days, has no pollution to the environment, and is suitable for various geological conditions.
本发明涉及建筑施工技术领域，尤其是涉及一种化学泥浆配合旋挖钻机快速成孔的施工方法，包括以下步骤：桩位测量放样；护筒埋设；旋挖钻机准备；浆液配制及旋挖成孔；成孔自检；钢筋笼下放；导管下放；水下混凝土灌注；护筒拔出。本发明化学泥浆能够提高砂层、淤泥质层孔壁的稳定性，根据地质的不同调整化学泥浆的用量、浆液的粘度，保障浆液的护壁性能，解决桩基钻孔效率低、成孔困难、塌孔的问题，且浆液还能够让钻屑迅速沉淀，无需进行二次清孔，提高施工效率，此外，浆液静置两天后可自动水解，对环境无污染，适用于各种地质条件。
Construction method for rapid hole forming through cooperation of chemical slurry and rotary drilling rig
一种化学泥浆配合旋挖钻机快速成孔的施工方法
LI GUANYANG (Autor:in) / LU LEI (Autor:in) / GAO JUNJIE (Autor:in) / LIN LIANQI (Autor:in) / WANG KUN (Autor:in)
13.07.2021
Patent
Elektronische Ressource
Chinesisch
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