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Systematic grouting process for dynamic water foundation pit cofferdam
The invention discloses a systematic grouting process for a dynamic water foundation pit cofferdam, and belongs to the technical field of coating detection. The method comprises the following steps that drilling equipment is positioned; grouting holes are divided into rows, sequences and sections; drilling and grouting according to rows, sequences and sections; grouting is finished; according to the method, the process of repeated drilling, grouting and hole sweeping is avoided, drilling and grouting can be conducted in parallel, the construction efficiency is greatly improved, the construction time is saved, and the method is suitable for cofferdam grouting and emergency rescue construction; in addition, the sealing effect of a pouring orifice is improved, grouting and sealing are performed section by section from top to bottom, the sealing and pressure-bearing capacity of the orifice is greatly improved, a foundation is laid for improving the pouring pressure, and the filling effect is finally achieved. And meanwhile, a controllable plastic cement plastomer grouting process is adopted, the paste slurry forming process is improved, the viscosity of the poured slurry in the initial stage is low and similar to that of pure cement slurry, and therefore in the injection process, the requirements for equipment and the process are greatly lowered, and the application range is wider.
本发明公开了一种动水基坑围堰系统性灌浆工艺，属于涂层检测技术领域；本发明方法包括如下步骤：钻孔设备定位；灌浆孔分排、分序、分段；依据分排、分序、分段钻孔灌浆；灌浆结束；本发明方法克服了反复钻孔灌注扫孔的过程，可使钻孔和注浆平行作业，大大提高了施工效率，节约了施工时间，适合用于围堰灌浆及抢险施工；此外本发明改善了灌注孔口封闭效果，至上而下逐段灌浆封闭，使得孔口封闭承压能力大幅提高，为提高灌注压力奠定基础，最终达到的填充效果；同时采用控制性塑性水泥塑性体灌浆工艺，对形成膏状浆液过程进行改进，使得灌注浆液初期粘性较低，与水泥纯浆粘性相似，因此在注入过程，对设备和工艺要求大幅降低，适用范围更广。
Systematic grouting process for dynamic water foundation pit cofferdam
The invention discloses a systematic grouting process for a dynamic water foundation pit cofferdam, and belongs to the technical field of coating detection. The method comprises the following steps that drilling equipment is positioned; grouting holes are divided into rows, sequences and sections; drilling and grouting according to rows, sequences and sections; grouting is finished; according to the method, the process of repeated drilling, grouting and hole sweeping is avoided, drilling and grouting can be conducted in parallel, the construction efficiency is greatly improved, the construction time is saved, and the method is suitable for cofferdam grouting and emergency rescue construction; in addition, the sealing effect of a pouring orifice is improved, grouting and sealing are performed section by section from top to bottom, the sealing and pressure-bearing capacity of the orifice is greatly improved, a foundation is laid for improving the pouring pressure, and the filling effect is finally achieved. And meanwhile, a controllable plastic cement plastomer grouting process is adopted, the paste slurry forming process is improved, the viscosity of the poured slurry in the initial stage is low and similar to that of pure cement slurry, and therefore in the injection process, the requirements for equipment and the process are greatly lowered, and the application range is wider.
本发明公开了一种动水基坑围堰系统性灌浆工艺，属于涂层检测技术领域；本发明方法包括如下步骤：钻孔设备定位；灌浆孔分排、分序、分段；依据分排、分序、分段钻孔灌浆；灌浆结束；本发明方法克服了反复钻孔灌注扫孔的过程，可使钻孔和注浆平行作业，大大提高了施工效率，节约了施工时间，适合用于围堰灌浆及抢险施工；此外本发明改善了灌注孔口封闭效果，至上而下逐段灌浆封闭，使得孔口封闭承压能力大幅提高，为提高灌注压力奠定基础，最终达到的填充效果；同时采用控制性塑性水泥塑性体灌浆工艺，对形成膏状浆液过程进行改进，使得灌注浆液初期粘性较低，与水泥纯浆粘性相似，因此在注入过程，对设备和工艺要求大幅降低，适用范围更广。
Systematic grouting process for dynamic water foundation pit cofferdam
一种动水基坑围堰系统性灌浆工艺
YANG CAIFU (author) / GUO YUQIAN (author)
2022-03-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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