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A platform for research: civil engineering, architecture and urbanism
Diving drainage well structure and drainage method
The invention relates to a diving drainage well structure which comprises at least one drainage combined structure, wherein the drainage combined structure is composed of a sealing grouting section and a filtering section joined up and down; the filtering section adopts a prefabricated water-permeable structure; the external diameter of the filtering section is slightly less than the diameter of adrilled hole; the sealing grouting section is positioned above the filtering section and comprises a well casing and a waterproof sealing bag arranged outside the well casing in a sleeving manner; the two ends of the sealing bag are sealed and fixed with the well casing; and a grouting pipe communicates with the sealing bag. According to the diving drainage well structure, the filtering section adopts the prefabricated water-permeable structure, so that the complicated procedures that the traditional dewatering well first forms a hole and fills filter material after a filter pipe is buried, and then flushing is carried out are eliminated, and the construction cost is saved; at the same time, the situation that a filter is blocked due to improper construction during the backfilling processis avoided, and the filtering section has reliable water permeability; and the well casing is grouted and sealed by adopting the sealing bag and can effectively fit the hole wall under different working conditions, and compared with a traditional clay ball, the sealing effect is excellent, and the gas tightness of a well structure is enhanced.
本发明涉及一种潜水疏干井结构，包括至少一个由上下衔接的密封注浆段、过滤段构成的疏干组合结构；所述过滤段采用预制透水结构，过滤段的外直径略小于钻孔直径；所述密封注浆段位于过滤段上方，包括井管及井管外套入的不透水的密封袋，密封袋两端与井管密封固定，注浆管与所述密封袋连通。本发明过滤段采用预制透水结构，省去了传统降水井先成孔埋设滤管后填滤料，然后再进行冲洗的复杂工序，节约施工成本；同时可避免回填过程中施工不当导致的过滤器堵塞，过滤段具有可靠的透水性。井管外采用密封袋注浆密封，能在不同工况下与孔壁有效贴合，相比于传统粘土球密封效果好，增强了井结构的气密性。
Diving drainage well structure and drainage method
The invention relates to a diving drainage well structure which comprises at least one drainage combined structure, wherein the drainage combined structure is composed of a sealing grouting section and a filtering section joined up and down; the filtering section adopts a prefabricated water-permeable structure; the external diameter of the filtering section is slightly less than the diameter of adrilled hole; the sealing grouting section is positioned above the filtering section and comprises a well casing and a waterproof sealing bag arranged outside the well casing in a sleeving manner; the two ends of the sealing bag are sealed and fixed with the well casing; and a grouting pipe communicates with the sealing bag. According to the diving drainage well structure, the filtering section adopts the prefabricated water-permeable structure, so that the complicated procedures that the traditional dewatering well first forms a hole and fills filter material after a filter pipe is buried, and then flushing is carried out are eliminated, and the construction cost is saved; at the same time, the situation that a filter is blocked due to improper construction during the backfilling processis avoided, and the filtering section has reliable water permeability; and the well casing is grouted and sealed by adopting the sealing bag and can effectively fit the hole wall under different working conditions, and compared with a traditional clay ball, the sealing effect is excellent, and the gas tightness of a well structure is enhanced.
本发明涉及一种潜水疏干井结构，包括至少一个由上下衔接的密封注浆段、过滤段构成的疏干组合结构；所述过滤段采用预制透水结构，过滤段的外直径略小于钻孔直径；所述密封注浆段位于过滤段上方，包括井管及井管外套入的不透水的密封袋，密封袋两端与井管密封固定，注浆管与所述密封袋连通。本发明过滤段采用预制透水结构，省去了传统降水井先成孔埋设滤管后填滤料，然后再进行冲洗的复杂工序，节约施工成本；同时可避免回填过程中施工不当导致的过滤器堵塞，过滤段具有可靠的透水性。井管外采用密封袋注浆密封，能在不同工况下与孔壁有效贴合，相比于传统粘土球密封效果好，增强了井结构的气密性。
Diving drainage well structure and drainage method
一种潜水疏干井结构及疏干方法
GU GUORONG (author) / YANG SHIFEI (author) / LU JIAFENG (author) / LIANG ZHENNING (author) / LUO ZHIHUA (author) / JIANG YU (author) / ZHANG HAN (author) / CHEN HAIYANG (author)
2020-06-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Drainage well structure with layered energy dissipation function and drainage method
| European Patent Office | 2024