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A platform for research: civil engineering, architecture and urbanism
Non-excavation type PRB construction method for underground water pollution
The invention provides a trenchless PRB (permeable reactive barrier) construction method for underground water pollution, and relates to the technical field of environmental rock-soil, a reaction zone and a permeable reactive barrier are included, the reaction zone adopts a modified PRB all-in-one machine to realize drilling, material stirring and wall forming functions, and the permeable reactive barrier is constructed by materials meeting the mixing amount of design requirements. The construction technology is small in difficulty, the PRB all-in-one machine is constructed in a non-excavation mode, foundation pit supporting is not needed, the method is particularly suitable for large-depth PRB construction, and the risk of hole collapse is effectively avoided; according to the PRB all-in-one machine, drilling is conducted firstly, then drill lifting is conducted, meanwhile, PRB active materials are poured, the functions of drilling, material stirring and wall forming are achieved, meanwhile, high efficiency of construction is achieved, and cost is reduced; according to the PRB all-in-one machine feeding system, mixing of filling soil and active materials is effectively achieved, the mixing amount needed by the treatment effect is achieved, the durability and the treatment effect of PRB are improved, meanwhile, recycling of the filling soil can be achieved, secondary pollution is avoided, and the PRB all-in-one machine feeding system is environmentally friendly.
本发明提供一种用于地下水污染的非开挖式PRB施工方法，涉及环境岩土技术领域，包括反应区与可渗透反应墙，所述反应区采用改造PRB一体机实现钻孔、材料搅拌和成墙功能，所述可渗透反应墙由材料满足设计要求的掺量构筑。本发明施工工艺难度小，PRB一体机非开挖式施工，无需基坑支护，尤其适合于大深度PRB构筑，有效避免了塌孔的风险；PRB一体机采用先钻孔后提钻，同时灌注PRB活性材料，实现钻孔、材料搅拌和成墙功能，同时实现施工高效性，降低成本；PRB一体机进料系统有效实现填土与活性材料的混合，达到处理效果所需掺量，提高PRB的持久性及处理效果，同时可实现填土的回收利用，避免二次污染，绿色环保。
Non-excavation type PRB construction method for underground water pollution
The invention provides a trenchless PRB (permeable reactive barrier) construction method for underground water pollution, and relates to the technical field of environmental rock-soil, a reaction zone and a permeable reactive barrier are included, the reaction zone adopts a modified PRB all-in-one machine to realize drilling, material stirring and wall forming functions, and the permeable reactive barrier is constructed by materials meeting the mixing amount of design requirements. The construction technology is small in difficulty, the PRB all-in-one machine is constructed in a non-excavation mode, foundation pit supporting is not needed, the method is particularly suitable for large-depth PRB construction, and the risk of hole collapse is effectively avoided; according to the PRB all-in-one machine, drilling is conducted firstly, then drill lifting is conducted, meanwhile, PRB active materials are poured, the functions of drilling, material stirring and wall forming are achieved, meanwhile, high efficiency of construction is achieved, and cost is reduced; according to the PRB all-in-one machine feeding system, mixing of filling soil and active materials is effectively achieved, the mixing amount needed by the treatment effect is achieved, the durability and the treatment effect of PRB are improved, meanwhile, recycling of the filling soil can be achieved, secondary pollution is avoided, and the PRB all-in-one machine feeding system is environmentally friendly.
本发明提供一种用于地下水污染的非开挖式PRB施工方法，涉及环境岩土技术领域，包括反应区与可渗透反应墙，所述反应区采用改造PRB一体机实现钻孔、材料搅拌和成墙功能，所述可渗透反应墙由材料满足设计要求的掺量构筑。本发明施工工艺难度小，PRB一体机非开挖式施工，无需基坑支护，尤其适合于大深度PRB构筑，有效避免了塌孔的风险；PRB一体机采用先钻孔后提钻，同时灌注PRB活性材料，实现钻孔、材料搅拌和成墙功能，同时实现施工高效性，降低成本；PRB一体机进料系统有效实现填土与活性材料的混合，达到处理效果所需掺量，提高PRB的持久性及处理效果，同时可实现填土的回收利用，避免二次污染，绿色环保。
Non-excavation type PRB construction method for underground water pollution
一种用于地下水污染的非开挖式PRB施工方法
YU DONGXUE (author) / LIU DENGFENG (author) / WANG JING (author) / YAN LIGANG (author) / SONG DEJUN (author)
2022-07-12
Patent
Electronic Resource
Chinese
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