Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Confined water dewatering well structure and dewatering method
The invention relates to a confined water dewatering well structure. The confined water dewatering well structure comprises a well casing section, a well wall plugging section, a filtering section anda precipitation tube section which are sequentially arranged from top to bottom, wherein the well wall plugging section adopts a sealing bag, and the sealing bag is used for communicating with a grouting pipe for grouting expansion; and before extending into a well hole, the filtering section is provided with a filter in advance, and the outer side of the filter is wrapped with a filtering material. A complex process of firstly forming a hole to embed a filter pipe and then performing filter material filling and washing is omitted, and the construction cost is saved; meanwhile, filter blockage caused by improper construction in a backfill process can be avoided, and the filtering section has reliable water permeability; the grouting sealing bag is added, the inner wall of the drilled holeis extruded through high-pressure grouting expansion, the larger water pressure difference can be resisted, and the well wall water stop effect is reliable.
本发明涉及一种承压水降水井结构，包括自上而下依次设置的井管段、井壁封堵段、过滤段、沉淀管段；所述井壁封堵段采用密封袋，所述密封袋用于与注浆管连通进行注浆膨胀；所述过滤段在伸入井孔之前，预先设置过滤器，并在过滤器外部包裹过滤材料。本发明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；增加了注浆密封袋，通过高压注浆膨胀挤压钻孔内壁，可抵抗较大的水压差，具有可靠的井壁止水效果。
Confined water dewatering well structure and dewatering method
The invention relates to a confined water dewatering well structure. The confined water dewatering well structure comprises a well casing section, a well wall plugging section, a filtering section anda precipitation tube section which are sequentially arranged from top to bottom, wherein the well wall plugging section adopts a sealing bag, and the sealing bag is used for communicating with a grouting pipe for grouting expansion; and before extending into a well hole, the filtering section is provided with a filter in advance, and the outer side of the filter is wrapped with a filtering material. A complex process of firstly forming a hole to embed a filter pipe and then performing filter material filling and washing is omitted, and the construction cost is saved; meanwhile, filter blockage caused by improper construction in a backfill process can be avoided, and the filtering section has reliable water permeability; the grouting sealing bag is added, the inner wall of the drilled holeis extruded through high-pressure grouting expansion, the larger water pressure difference can be resisted, and the well wall water stop effect is reliable.
本发明涉及一种承压水降水井结构，包括自上而下依次设置的井管段、井壁封堵段、过滤段、沉淀管段；所述井壁封堵段采用密封袋，所述密封袋用于与注浆管连通进行注浆膨胀；所述过滤段在伸入井孔之前，预先设置过滤器，并在过滤器外部包裹过滤材料。本发明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；增加了注浆密封袋，通过高压注浆膨胀挤压钻孔内壁，可抵抗较大的水压差，具有可靠的井壁止水效果。
Confined water dewatering well structure and dewatering method
一种承压水降水井结构及降水方法
GU GUORONG (Autor:in) / YANG SHIFEI (Autor:in) / LU JIAFENG (Autor:in) / LIANG ZHENNING (Autor:in) / LUO ZHIHUA (Autor:in) / JIANG YU (Autor:in) / ZHANG HAN (Autor:in) / CHEN HAIYANG (Autor:in)
22.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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