Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Water storage and supply method for weak aquifer of coal seam roof in desert beach area
The invention belongs to the technical field of coal mining, and particularly relates to a water storage and supply method for a weak aquifer of a coal seam roof in a desert beach area. According to the method, it is comprehensively considered that water storage difficulty of the weak aquifer is mostly limited by rock mass medium conditions, the characteristic that the diurnal temperature difference of the desert and the bottomland is large is innovatively utilized, and long-time thermal expansion and cold contraction degradation permeability increasing is conducted on the weak aquifer; in consideration of non-homogeneity after degradation and permeability increase, the fracture dominant depth is measured by adopting the flow velocity and the flow direction, the water conductivity is further improved by adopting a perforation technology, and water is discharged through a directional drill; after a good reservoir is formed, water is supplemented in the rainy season, and during water supplementing, the water amount is safely limited according to the mine drainage capacity and mine water inflow prediction; in the aspect of water supply, advanced use is carried out in an artificially modified water-rich area without mining, water resource scheduling is carried out through an underground space, coordinated utilization of water resources is increased, the well lifting amount of the water resources is reduced, and the water supply cost is reduced.
本发明属于煤矿开采技术领域，具体涉及一种沙漠滩地区煤层顶板弱含水层的储水和供水方法。本发明综合考虑弱含水层储水困难多受制于岩体介质条件，创新利用沙漠滩地昼夜温差大的特点，对弱含水层进行长时间的热胀冷缩劣化增透；考虑劣化增透后仍然是非均质的，采用流速流向测定裂隙优势深度，并采用射孔技术进一步增大导水性，通过定向钻进行放水；形成良好的储层后，在雨季进行补水，补水时依据矿井排水能力和矿井涌水量预测对水量进行安全限定；供水方面，在没有开采的人工改造富水区进行超前使用，通过井下空间进行水资源调度，增加了水资源的协调利用，减少了水资源的升井量，降低了供水成本。
Water storage and supply method for weak aquifer of coal seam roof in desert beach area
The invention belongs to the technical field of coal mining, and particularly relates to a water storage and supply method for a weak aquifer of a coal seam roof in a desert beach area. According to the method, it is comprehensively considered that water storage difficulty of the weak aquifer is mostly limited by rock mass medium conditions, the characteristic that the diurnal temperature difference of the desert and the bottomland is large is innovatively utilized, and long-time thermal expansion and cold contraction degradation permeability increasing is conducted on the weak aquifer; in consideration of non-homogeneity after degradation and permeability increase, the fracture dominant depth is measured by adopting the flow velocity and the flow direction, the water conductivity is further improved by adopting a perforation technology, and water is discharged through a directional drill; after a good reservoir is formed, water is supplemented in the rainy season, and during water supplementing, the water amount is safely limited according to the mine drainage capacity and mine water inflow prediction; in the aspect of water supply, advanced use is carried out in an artificially modified water-rich area without mining, water resource scheduling is carried out through an underground space, coordinated utilization of water resources is increased, the well lifting amount of the water resources is reduced, and the water supply cost is reduced.
本发明属于煤矿开采技术领域，具体涉及一种沙漠滩地区煤层顶板弱含水层的储水和供水方法。本发明综合考虑弱含水层储水困难多受制于岩体介质条件，创新利用沙漠滩地昼夜温差大的特点，对弱含水层进行长时间的热胀冷缩劣化增透；考虑劣化增透后仍然是非均质的，采用流速流向测定裂隙优势深度，并采用射孔技术进一步增大导水性，通过定向钻进行放水；形成良好的储层后，在雨季进行补水，补水时依据矿井排水能力和矿井涌水量预测对水量进行安全限定；供水方面，在没有开采的人工改造富水区进行超前使用，通过井下空间进行水资源调度，增加了水资源的协调利用，减少了水资源的升井量，降低了供水成本。
Water storage and supply method for weak aquifer of coal seam roof in desert beach area
一种沙漠滩地区煤层顶板弱含水层的储水和供水方法
LI TAO (Autor:in) / WU QUNYING (Autor:in) / GAO YING (Autor:in) / FAN LIMIN (Autor:in) / YAN JINGWANG (Autor:in) / SUN QIANG (Autor:in) / WANG YUKUN (Autor:in) / YANG JUNWEI (Autor:in)
14.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E03B
Anlagen oder Verfahren zum Gewinnen, Sammeln oder Verteilen von Wasser
,
INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
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