Method and permeability device for researching draining and seepage effect of draining and seepage pipe

Abstract

The invention discloses a method and a permeability device for researching a draining and seepage effect of a draining and seepage pipe. The method comprises the steps of measuring basic parameters, such as a size, a weight, an aperture ratio, a permeability coefficient and the like, of a material; measuring a comprehensive permeability coefficient of the draining and seepage pipe; carrying out acomparison experiment; measuring in-situ dry densities and corresponding permeability coefficients of sandy soil at different depths after the experiment; measuring the mass of the draining and seepage pipe after use, and carrying out qualitative processing on different positions of the inner surface and the outer surface of the draining and seepage pipe; measuring a comprehensive permeability coefficient of the draining and seepage pipe after use and a permeability coefficient of a filter material; measuring the mass of the filter material after drying; and performing data analysis. Accordingto the method, the influences of different factors on the draining and seepage effect of a draining and seepage pipe assembly can be systematically compared and researched; and the blocking position,the form, the blocking degree and the like of the draining and seepage pipe can be qualitatively and quantitatively researched, and the long-term blocking period characteristic of the blocked draining and seepage pipe can be researched, so that the method has high practicability and wide applicability.

Description

technical field [0001] The invention relates to a research method and a permeation device, in particular to a method and a permeation device for researching the seepage discharge effect of a seepage drainage pipe, belonging to the technical field of tailings dam seepage discharge. Background technique [0002] Tailings pool refers to the place where dams are built to intercept valley mouths or enclosures, and are used to stockpile metal or non-metal mines for ore sorting and then discharge tailings or other industrial waste. The tailings pond is a high potential energy man-made debris flow hazard, and there is a danger of dam failure. Once the accident occurs, it is easy to cause serious accidents. Most of the tailing ponds in my country have fine particles and poor permeability. The water content in the tailing ponds is relatively large, and the tailing ponds are easy to liquefy, which greatly reduces the compressive strength of the dam body, and may cause landslides and wa...

AI Technical Summary

Problems solved by technology

The tailings pond is a dangerous source of man-made debris flow with high potential energy, and there is a danger of dam failure. Once the accident occurs, it is easy to cause serious accidents

Most of the tailing ponds in my country have fine particles and poor permeability. The water content in the tailing ponds is relatively large, and the tailing ponds are easy to liquefy, which greatly reduces the compressive strength of the dam body, and may cause landslides and water seepage on the outer slope of the sub-dam. More serious cases lead to the collapse of the dam, which brings great harm to the lives and properties of the people.

[0003] At present, the purpose of reducing the infiltration line and improving the stability of the tailings dam is generally achieved by setting up a seepage drainage system. The most commonly used seepage drainage device is a seepage drainage pipe, which is generally made of UPVC flower pipes wrapped with geotextiles. It has a simple structure and is convenient for construction. , good durability and other advantages, but this also has a fatal disadvantage, that is, geotextiles are prone to silting, which leads to a significant reduction in the drainage effect of the drainage pipe or even failure. In order to reduce the soaking line, the drainage pipe can only be re-laid. more expensive

[0004] Therefore, it is necessary to develop a new type of seepage pipe to effectively solve the problem of seepage pipe silting

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