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Elastic analysis method for deformation of soil around refuse dump

An analytical method, a technology of soil deformation, applied in special data processing applications, instruments, measuring devices, etc.

Pending Publication Date: 2021-02-02
LIAONING TECHNICAL UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Since the problem of deformation rather than destruction is considered, the present invention is based on the semi-infinite planar elastic deformation analysis method, combined with the load distribution characteristics of the dump site, and uses polar coordinates to solve the problem of two-dimensional elastic mechanics

Method used

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  • Elastic analysis method for deformation of soil around refuse dump
  • Elastic analysis method for deformation of soil around refuse dump
  • Elastic analysis method for deformation of soil around refuse dump

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Embodiment Construction

[0063]The dump site in the NPBK2 section and NPBK3 section of an open-pit mine is loaded by its own gravity, which will affect the nearby railway lines. Here, the dump site is compared to a trapezoidal load, such as Figure 5 shown. Using the principle of integral superposition of uniformly distributed load, the stress on the foundation of the dump site is calculated.

[0064] The force F of the dump site on the semi-infinite plane is obtained by the integral superposition method as

[0065] dF=qdr

[0066]

[0067] In the formula: q—the strength of the load;

[0068] γ—Dump bulk density, KN / m 3 ;

[0069] h—disposal height of the side slope of the dump site, m;

[0070] alpha 0 —Initial slope angle of dump site, °;

[0071] α—the slope angle of the dump site after the waste is discharged, °;

[0072] 1000—the extension length of the slope top, m;

[0073] Substituting formula (5) into formula (4), the relative subsidence on both sides of the rail can be obtained ...

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Abstract

The invention discloses an elastic analysis method for surrounding soil deformation of a refuse dump, and belongs to the field of strip mine slope mining. The method comprises the following steps: 1,analyzing polar coordinates of semi-infinite plane elastic deformation, 2, calculating the horizontal (vertical) displacement of any point in the foundation under the dumping site, and 3, calculatingthe deformation of the soil body around the refuse dump At present, key points concerned in the engineering field are still not reported in the research under the action of excavation unloading and refuse dump load. Obviously, the deformation of the surrounding soil body is not paid attention to sufficiently under the load effect of the refuse dump, a relatively uniform method is not formed, and engineering design cannot be effectively guided. The displacement change of any point in the soil body is solved by applying an elastic analysis method based on the load distribution characteristics ofthe waste dump, so that the relative deformation value of the peripheral earth surface of the waste dump is obtained. Engineering practice is guided, and very important significance is achieved for safety of the strip mine.

Description

technical field [0001] The invention belongs to the field of slope mining in open-pit mines, and in particular relates to an elastic analysis method for soil deformation around a dump site. Background technique [0002] The number and output scale of open-pit mines in my country are constantly increasing, among which soft-rock open-pit coal mines account for a large proportion, and the lithology of the basement of the dump site is weak and compressible. As the load increases due to the accumulation of discarded materials, the base and surrounding soil will also deform. When it reaches a certain level, it will endanger the safety of surrounding buildings, railways and other facilities. For dump slopes, stability is often the concern, but the impact of deformation on surrounding facilities is often ignored. Soil deformation is a hot research issue in the field of geotechnical engineering, but most of the research is mainly oriented to mining subsidence, foundation pit lateral...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q50/02G01B21/32G06F119/14
CPCG06F30/20G06Q50/02G01B21/32G06F2119/14
Inventor 王东尹立李广贺邢晓宇曹兰柱姜聚宇宋伟豪丁春健杨国华于明宇董瑞荣赵立春
Owner LIAONING TECHNICAL UNIVERSITY
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