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A platform for research: civil engineering, architecture and urbanism
Collapsible loess foundation treatment method suitable for pumped storage power station site
A collapsible loess foundation treatment method suitable for a pumped storage power station site comprises the steps that firstly, data such as the depth and the collapsibility coefficient of collapsible loess are judged through site investigation and soil sampling inspection, then a hole is drilled in the site, electrode equipment is inserted, and sand gravel is filled; then water is pumped from a nearby river for pre-soaking treatment, after pre-soaking is finished, the surface is covered with a waterproof film, irrigation and pre-pressing are carried out, after the settling volume is stable, a direct-current power source is turned on, drainage and consolidation are carried out in combination with an electroosmosis method, pre-pressing is finished till the standard requirement is met, and drainage is carried out; finally, taking soil again to check whether the soil sample meets the expected requirement or not; according to the method, the collapsible loess is soaked in water and pre-pressed by utilizing a water source in a river near the pumped storage power station, so that the cost for treating the foundation can be obviously reduced; a better foundation treatment effect can be achieved through the method of combining presoaking, water pumping prepressing and electroosmosis drainage, the collapsibility of the loess foundation is eliminated, and the bearing capacity of collapsible loess is improved.
一种适用于抽水蓄能电站场地的湿陷性黄土地基处理方法，首先通过现场勘察和取土检验判断湿陷性黄土的深度以及湿陷系数等数据，之后在场地钻孔，插入电极设备并且填入砂砾石；再从附近的江河抽水进行预浸水处理，预浸水结束后在表面覆铺盖隔水膜，进行灌水预压，当沉降量稳定后，打开直流电源，联合电渗法排水固结，直至符合规范要求结束预压，并进行排水；最后，再次取土检验土样是否达到预期要求；本发明利用抽水蓄能电站附近江河中的水源对湿陷性黄土浸水并预压，可显著降低处理地基的成本；利用预浸水、抽水预压和电渗法排水相结合的方法可达到更好的地基处理效果，消除黄土地基的湿陷性，提高湿陷性黄土的承载能力。
Collapsible loess foundation treatment method suitable for pumped storage power station site
A collapsible loess foundation treatment method suitable for a pumped storage power station site comprises the steps that firstly, data such as the depth and the collapsibility coefficient of collapsible loess are judged through site investigation and soil sampling inspection, then a hole is drilled in the site, electrode equipment is inserted, and sand gravel is filled; then water is pumped from a nearby river for pre-soaking treatment, after pre-soaking is finished, the surface is covered with a waterproof film, irrigation and pre-pressing are carried out, after the settling volume is stable, a direct-current power source is turned on, drainage and consolidation are carried out in combination with an electroosmosis method, pre-pressing is finished till the standard requirement is met, and drainage is carried out; finally, taking soil again to check whether the soil sample meets the expected requirement or not; according to the method, the collapsible loess is soaked in water and pre-pressed by utilizing a water source in a river near the pumped storage power station, so that the cost for treating the foundation can be obviously reduced; a better foundation treatment effect can be achieved through the method of combining presoaking, water pumping prepressing and electroosmosis drainage, the collapsibility of the loess foundation is eliminated, and the bearing capacity of collapsible loess is improved.
一种适用于抽水蓄能电站场地的湿陷性黄土地基处理方法，首先通过现场勘察和取土检验判断湿陷性黄土的深度以及湿陷系数等数据，之后在场地钻孔，插入电极设备并且填入砂砾石；再从附近的江河抽水进行预浸水处理，预浸水结束后在表面覆铺盖隔水膜，进行灌水预压，当沉降量稳定后，打开直流电源，联合电渗法排水固结，直至符合规范要求结束预压，并进行排水；最后，再次取土检验土样是否达到预期要求；本发明利用抽水蓄能电站附近江河中的水源对湿陷性黄土浸水并预压，可显著降低处理地基的成本；利用预浸水、抽水预压和电渗法排水相结合的方法可达到更好的地基处理效果，消除黄土地基的湿陷性，提高湿陷性黄土的承载能力。
Collapsible loess foundation treatment method suitable for pumped storage power station site
一种适用于抽水蓄能电站场地的湿陷性黄土地基处理方法
ZHANG YAO (author) / SHAO MINGHANG (author) / QIN JIANXIANG (author) / LIU ZHENGHONG (author) / LI GANG (author) / TANG HAO (author) / YANG SHASHA (author) / GUO PEIXI (author) / XI YU (author)
2024-05-07
Patent
Electronic Resource
Chinese
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