Plugging method and device for backwater pipeline of tailings pond

Abstract

The invention relates to a method and device for blocking a return water pipeline of a tailing pond. The method is characterized in that the return water pipeline is found outside a primary dam of the tailing pond, the blocking device is pushed into the return water pipeline, the return water pipeline is found in the tailing pond again, a vertical shaft is drilled and communicated with the return water pipeline, the return water pipeline is blocked for the first time by being filled with iron sand, nonwoven geotechnical cloth, gravel and pouring concrete, and the return water pipeline is blocked for the second time by being filled with cement mortar through a main supporting pipe and a grout pipe at the outlet of the return water pipeline. According to the method, the construction is convenient, safety and reliability are achieved, the problems of high construction difficulty and difficult guarantee of blocking effect in an existing technology for blocking a return water pipeline of a tailing pond are radically solved, the return water pipeline of the tailing pond is effectively blocked, and return water in the tailing pond is prevented from seeping, so that the safety running of the tailing pond is realized.

Description

technical field [0001] The invention relates to a tailing pond backwater pipe sealing technology, in particular to a tailing pond backwater pipe plugging method and device. Background technique [0002] The return water towers in the tailings pond are gradually abandoned due to the increase in service life, so the return water pipes connected with each return water tower will also be abandoned, and the water seepage of the abandoned return water pipes is directly related to the tailings pond. safe operation. There are two commonly used plugging methods for the backwater system of tailings ponds: one is rigid plugging, that is, a steel frame is first constructed at the bottom of the return tower, and then filter cloth and non-woven geotextiles are laid on the steel frame. etc., and then directly pour concrete into the return water tower. This type of rigid sealing construction is relatively simple, but the construction sealing effect is poor in the construction environment w...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a convenient, safe and reliable method and device for plugging the backwater pipeline of the tailings pond, and fundamentally solve the problems of difficult construction and sealing problems existing in the existing tailings pond backwater pipeline plugging technology. The problem that the plugging effect is difficult to guarantee, the effective implementation of the plugging of the return water pipeline of the tailings pond, to prevent the backwater from seeping out of the tailings pond, so as to realize the safe operation of the tailings pond

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