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A platform for research: civil engineering, architecture and urbanism
Grouting treatment method and system for underwater karst cave in karst development area
The invention discloses a grouting treatment method and a system for an underwater karst cave in a karst development area. The method comprises the steps of positioning and hole arrangement, isolation of underground water and a silt layer through a first sleeve, formation of grouting holes through slurry protection wall pipe following drilling, hole washing, replacement of pipe following sleeves through a second sleeve, positioning and installation of a stop-grouting plug, pressurization and fixation, karst cave grouting, grout return pressure monitoring, completion of grouting, hole sealing and grouting effect detection. According to the grouting treatment method and the system for the underwater karst cave in the karst development area, the double sleeves and the stop-grouting plug are adopted for carrying out grouting treatment on the karst cave, and therefore surface water and underwater sludge can be effectively isolated, the grouting hole wall can be stabilized and prevented from collapsing, grouting liquid loss is reduced, and a good protection effect on the environment and water resources is achieved; a novel stop-grouting plug expansion fastening technology is adopted, so that the problems that hole sealing is difficult and the grout return pressure is difficult to control in conventional grouting are solved, the karst cave grouting quality is high, and the filling and reinforcing effects are good; and the grouting pressure can be monitored in real time, grouting parameters are adjusted, integrated construction of drilling, grouting, hole sealing, monitoring and environmental protection is achieved, and creativity is high.
本发明公开了一种岩溶发育区水下溶洞注浆处理方法及系统，该方法包括定位布孔、第一套管隔离地下水及淤泥层、泥浆护壁跟管钻进形成注浆孔、洗孔、第二套管置换跟管套管、止浆塞定位及安装、加压固定、溶洞注浆、返浆压力监测、注浆结束及封孔以及注浆效果检测；本发明采用双套管+止浆塞对溶洞进行注浆处理，能够有效隔离地表水及水下淤泥，且能稳定注浆孔壁防止垮塌，减少注浆液流失对环境、水资源保护有较好的保护作用，采用新型止浆塞膨胀紧固技术避免常规注浆的封孔难、返浆压力难以控制的问题，岩溶溶洞注浆质量高，填充加固效果好；并可实时监测浆液压力、调整注浆参数，做到钻孔、注浆、封孔、监测与环境保护一体化施工，极具创造性。
Grouting treatment method and system for underwater karst cave in karst development area
The invention discloses a grouting treatment method and a system for an underwater karst cave in a karst development area. The method comprises the steps of positioning and hole arrangement, isolation of underground water and a silt layer through a first sleeve, formation of grouting holes through slurry protection wall pipe following drilling, hole washing, replacement of pipe following sleeves through a second sleeve, positioning and installation of a stop-grouting plug, pressurization and fixation, karst cave grouting, grout return pressure monitoring, completion of grouting, hole sealing and grouting effect detection. According to the grouting treatment method and the system for the underwater karst cave in the karst development area, the double sleeves and the stop-grouting plug are adopted for carrying out grouting treatment on the karst cave, and therefore surface water and underwater sludge can be effectively isolated, the grouting hole wall can be stabilized and prevented from collapsing, grouting liquid loss is reduced, and a good protection effect on the environment and water resources is achieved; a novel stop-grouting plug expansion fastening technology is adopted, so that the problems that hole sealing is difficult and the grout return pressure is difficult to control in conventional grouting are solved, the karst cave grouting quality is high, and the filling and reinforcing effects are good; and the grouting pressure can be monitored in real time, grouting parameters are adjusted, integrated construction of drilling, grouting, hole sealing, monitoring and environmental protection is achieved, and creativity is high.
本发明公开了一种岩溶发育区水下溶洞注浆处理方法及系统，该方法包括定位布孔、第一套管隔离地下水及淤泥层、泥浆护壁跟管钻进形成注浆孔、洗孔、第二套管置换跟管套管、止浆塞定位及安装、加压固定、溶洞注浆、返浆压力监测、注浆结束及封孔以及注浆效果检测；本发明采用双套管+止浆塞对溶洞进行注浆处理，能够有效隔离地表水及水下淤泥，且能稳定注浆孔壁防止垮塌，减少注浆液流失对环境、水资源保护有较好的保护作用，采用新型止浆塞膨胀紧固技术避免常规注浆的封孔难、返浆压力难以控制的问题，岩溶溶洞注浆质量高，填充加固效果好；并可实时监测浆液压力、调整注浆参数，做到钻孔、注浆、封孔、监测与环境保护一体化施工，极具创造性。
Grouting treatment method and system for underwater karst cave in karst development area
一种岩溶发育区水下溶洞注浆处理方法及系统
ZHENG WENHAO (author) / YANG MEI (author) / LONG GUANGSHAN (author) / LI PENG (author) / HU JUN (author) / WANG JIE (author) / HE LINGJIE (author) / ZHENG HAIXING (author)
2021-08-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Grouting and hole sealing device for karst cave in karst area
| European Patent Office | 2023