Intelligent dewatering wells for reservoir landslide and intelligent dewatering prevention method for reservoir landslide

Abstract

The invention discloses intelligent dewatering wells for reservoir landslide and an intelligent dewatering prevention method for reservoir landslide. Each intelligent dewatering well is composed of adewatering well and an intelligent control system, and the intelligent dewatering wells and arc-shaped drainage ditches are uniformly distributed in a landslide mass influenced by underground water level fluctuation; the intelligent dewatering wells go deep into the positions below the sliding surface of the landslide mass, the landslide mass underground water level and the reservoir water level are declined synchronously by intelligently controlling a submerged pump to pump water, the landslide mass underground water level is quickly declined while the reservoir water level falls, the landslide mass underground water level is declined to the position below the sliding surface or equal to the lowest reservoir water level, the underground water hysteresis effect is eliminated, and the innerdynamic water pressure effect of the landslide mass is reduced. According to the intelligent dewatering wells for reservoir landslide and the intelligent dewatering prevention method for reservoir landslide, implementation is easy and convenient, the efficiency is high, the cost is low, underground water in the landslide mass can be efficiently and automatically pumped, the water head differencebetween the landslide mass underground water level and the reservoir water level is intelligently controlled, the adverse impact of reservoir water level falling on landslide is reduced, and accordingly, the stability of the reservoir landslide mass is improved effectively.

Description

technical field [0001] The invention belongs to the technical field of landslide prevention, and in particular relates to an intelligent prevention and control device and method for hydrodynamic pressure type landslides affected by reservoir water level fluctuations. Background technique [0002] With the rapid development of my country's economic construction, large-scale water conservancy and hydropower projects have been successively constructed in areas with complex geological conditions and frequent geological disasters of landslides, which brought huge economic benefits and also induced many reservoir landslides in the reservoir area. [0003] Due to its special hydrological conditions in the reservoir area, reservoir landslides are different from general landslides and side slopes. The deformation evolution of reservoir landslides will present a periodic law with the fluctuation of the reservoir water level. In my country's Three Gorges Reservoir area, the monitoring ...

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Problems solved by technology

Although when designing anti-sliding piles, the safety reserve will be appropriately increased according to experience, and the anti-sliding force of the anti-sliding piles will be increased. However, this approach does not cure the symptoms, not only does not prevent the sliding body in front of the piles, but also causes economic waste.

In addition, since the main controlling factor of hydrodynamic pressure landslides is groundwater, under the action of long-term periodic reservoir water level fluctuations, the periodically changing dynamic osmotic pressure forms a kind of cyclic loading on landslides and anti-slide piles, while under the action of cyclic loading The long-term safety of the landslide-anti-slide pile system is difficult to be guaranteed

However, due to the periodic changes in the water level of the reservoir, the traditional underground drainage method is difficult to apply to the reservoir landslide control project

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