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Comprehensive waste dump water controlling method applicable to soft foundations

A weak foundation and comprehensive water control technology, which is applied in the comprehensive treatment of dumps, the comprehensive treatment of surface water and groundwater in open-pit mine dumps, and can solve problems such as unsound drainage facilities and deteriorating stability conditions

Active Publication Date: 2013-04-17
SINOSTEEL MAANSHAN INST OF MINING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the main cause of landslides and mudslides in dump sites is that the drainage facilities are not perfect
Due to the infiltration of atmospheric rainfall and surface water on the dump, the initial stable state of the dump has changed, and the stability condition has deteriorated rapidly

Method used

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  • Comprehensive waste dump water controlling method applicable to soft foundations
  • Comprehensive waste dump water controlling method applicable to soft foundations
  • Comprehensive waste dump water controlling method applicable to soft foundations

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Embodiment Construction

[0019] A comprehensive water control measure for dump sites suitable for weak foundations of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation plans.

[0020] Depend on figure 1 It can be seen from the schematic diagram of the layout of the flood intercepting ditch at the upper part of the dump site that the flood intercepting ditch 2 is constructed at a suitable location on the hillside 3 above the dump site 1 and regularly maintained and repaired. The layout of the flood intercepting ditch 2 The principle is to cover as much catchment area as possible based on the actual topography of the site. The size of flood intercepting ditch 2 must be determined after calculation and review of flood discharge capacity in combination with catchment area and hydrological data in the area.

[0021] figure 2 It can be seen from the schematic diagram of the anti-seepage layer layout of the dumping platform show...

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Abstract

The invention discloses a comprehensive waste dump water controlling method applicable to soft foundations. The method comprises building a flood intercepting trench on the mountain slope on the upper portion of a waste dump (1); paving clay on each platform of the waste dump (1) to form impermeable layers, building platforms of the waste dump (1) into 2% to 3% of adverse slopes, building a drainage ditch (5) at the slope toe on a platform of the waste dump (1), and building floor retaining walls (6) outside the waste dump platforms; and excavating blind drainage ditches (7) in the soft foundation of a waste dump, wherein the space among the blind drainage ditches (7) is between 20m and 40m. According to the comprehensive waste dump water controlling method, comprehensive water control measures of interception, prevention, drainage and dredging are utilized together, and the platform impermeable layers are used for preventing rainwater from permeating downwards; and the floor retaining walls (6) and the adverse slopes can prevent rainwater from washing the slope and guide water into the drainage ditch (5) on the inner side of the platform; and the drainage blind ditches (7) are arranged in the soft foundation, so that underground water in soft rock foundations can be drained, drainage in the waste dump can be promoted, the problem of water damage of waste dumps can be solved effectively, and landslide and debris flow of waste dumps are prevented.

Description

technical field [0001] The present invention relates to a safety control measure for a dump site, in particular to a comprehensive treatment technology for surface water and groundwater in an open-pit mine dump site. It is widely used in open-pit mine dumps in industries such as chemical industry and chemical industry. Background technique [0002] The soil dumping process is one of the basic processes of open-pit mining. The open-pit mine dump is a place where the stripped waste rock (soil) is piled up. The open-pit mine dump is a huge structure second only to the mining field. The geotechnical waste stripped from open-pit mines ranges from millions of tons to hundreds of millions of tons. The dump site consists of two parts: the foundation for containing the rock and soil bulk and the pile of waste rocks piled on it. Landslides in dump sites are the most common and frequently occurring disasters in dump sites. Therefore, dump sites are of great significance to the safe p...

Claims

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Application Information

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IPC IPC(8): E02D3/10E02B11/00E02D31/04
Inventor 王运敏汪斌朱君星周玉新段为平汪良峰华跃吴小刚张默
Owner SINOSTEEL MAANSHAN INST OF MINING RES
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