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Three-dimension design method for side slope gentling for surface loose bed of open-pit mine

A three-dimensional design, loose layer technology, applied in the direction of excavation, geometric CAD, construction, etc., can solve the problems of neglecting the design technology of the loose layer slope on the surface of the open pit mine, and the slope angle of the loose layer on the surface, etc., and achieve the real realization method. Reliable, conducive to safety and stability, practical and easy-to-achieve effects

Active Publication Date: 2020-01-17
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, design consulting and research institutes at home and abroad have always neglected the research on the slope slowdown design technology of the loose layer on the surface of the open pit mine. For the same slope angle design, individual open-pit mines with complex geological conditions design slope angles according to different mining elevations and lithology types, but there are basically no reference documents for the selection of slope angles and slowdown design for loose layers on the surface

Method used

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  • Three-dimension design method for side slope gentling for surface loose bed of open-pit mine
  • Three-dimension design method for side slope gentling for surface loose bed of open-pit mine
  • Three-dimension design method for side slope gentling for surface loose bed of open-pit mine

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Embodiment 1

[0074] A three-dimensional design method for slope slowing in loose layers on the surface of an open-pit mine, comprising the following steps:

[0075] S1. Based on the overall end slope design, starting from the intersection line between the rocky step slope and the loose layer floor, slow down the loose layer slope upwards according to the thickness of the loose layer and the slope angle;

[0076] S2. According to the measured thickness of the loose layer and the slope angle of the loose layer, the offset distance of the intersection point of the surface after the slope is slowed down is calculated, and based on the offset distance, the mining boundary and the intersection line of the surface after the slowdown are determined, so as to realize the slope slow down;

[0077] S3, 3D solid modeling:

[0078] S31. Using a computer to construct a three-dimensional DTM model of the surface, formation and mining boundary;

[0079] S32. Obtaining the floor line of the loose layer a...

Embodiment 2

[0122] A three-dimensional design method for slope slowing in loose layers on the surface of an open-pit mine, comprising the following steps:

[0123] S1. Based on the overall end slope design, starting from the intersection line between the rocky step slope and the loose layer floor, slow down the loose layer slope upwards according to the thickness of the loose layer and the slope angle;

[0124] S2. According to the thickness of the loose layer and the slope angle of the loose layer, the offset distance of the intersection point of the surface after the slope is slowed down is calculated, and based on the offset distance, the mining boundary and the intersection line of the surface after the slowdown are determined, so as to realize the slowdown of the slope ;

[0125] S3, 3D solid modeling:

[0126] S31. Using a computer to construct a three-dimensional DTM model of the surface, formation and mining boundary;

[0127] S32. Obtaining the floor line of the loose layer and...

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Abstract

The invention provides a three-dimension design method for side slope gentling for a surface loose bed of an open-pit mine. According to the three-dimension design method for side slope gentling for the surface loose bed of the open-pit mine, an overall final side slope design is based, the intersection line of a rocky step side slope and a loose bed bottom plate is taken as a starting point, andthe side slope of the loose bed is gentled upwards according to the thickness of the loose bed, the angle of the side slope, and other parameters; a realization method for side slope gentling for theloose bed in different surface shapes is provided; side slope gentling for the surface loose beds of singe-line mining boundaries and double-line mining boundaries are realized through three-dimensional modeling; the purpose of a three-dimensional design for side slope gentling for the loose bed is achieved; and a three-dimensional model of a gentled side slope of the surface loose bed is constructed. The invention provides a design method for side slope gentling for a surface loose bed of an open-pit mine, and used for lowering the landslip risk of a surface loose body, and providing technical support for a complete and comprehensive safety design for the mining boundaries of the open-pit mine.

Description

technical field [0001] The invention relates to the technical field of open-pit mining, in particular to a three-dimensional design method for slope slowing of loose layers on the surface of open-pit mines. Background technique [0002] With the gradual depletion of resources and the continuous improvement of mining technology and equipment, future mineral development will turn more to the exploitation of lean ore resources with harsh environments and low grades. Large-scale and extra-large open-pit mining will be the most economically feasible resource recovery method. . More and more open-pit mines are gradually developing into deep depressions. With the increase of mining depth, the safety problems of high and steep slopes formed on the upper part of open-pit mining have also become prominent. The slope of the open-pit mine is relatively high, with a length of hundreds of meters; and the strike is long, often up to several kilometers, with many exposed rock layers and co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20G06F30/13
CPCE02D17/20
Inventor 罗周全徐海马少维
Owner CENT SOUTH UNIV
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