Six factors linear prediction model on depth of damage floor

DUAN Hong-fei

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Six factors linear prediction model on depth of damage floor

更新时间：2026-06-25

- Six factors linear prediction model on depth of damage floor
- Vol. 35, Issue 11, (2014)
- 作者机构：
  
  大同煤矿集团有限责任公司,山西,大同,037003
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD323
- Online First：10 December 2014，
  
  Published：2014
- 稿件说明：
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DUAN Hong-fei. Six factors linear prediction model on depth of damage floor[J]. 2014, 35(11).
DOI：

DUAN Hong-fei. Six factors linear prediction model on depth of damage floor[J]. 2014, 35(11). DOI：

摘要

针对煤矿底板破坏深度影响因素较多，难以准确地确定难题，通过分析影响底板岩体变形程度的底板岩层的抗破坏能力和作用在底板上的矿山压力两方面因素，选取采深、采高、斜长（工作面）、倾角、底板岩性组合与顶板岩性组合6个因素进行底板破坏深度研究，以某矿4602工作面为背景概化工程地质模型进行6因素5水平正交数值模拟试验。试验结果表明，（1）影响底板破坏深度的主要因素是斜长，顶板岩性组合、底板岩性组合、采深、采高依次减弱，倾角最差；（2）首次明确了顶板岩性组合是影响底板破坏深度的关键因素；（3）建立了斜长-顶底板岩性组合-采深-采高-倾角的采动底板破坏深度预测模型，计算结果较开采规程经验公式的计算结果更接近实际，精度高、误差小，基本可以满足工程使用。研究结果对底板破坏深度的研究以及工程应用具有积极的指导意义。

Abstract

In response to the problem of more influence factors and difficulties in identifying the depth of damage floor of coal seam

six factors including mining depth

mining height

incline section length (working face)

dip angle

floor lithological combination and roof lithological combination were selected to research the depth of damage floor by analyzing two aspects influential elements of the deformation degree of the floor rock

geological model was generalized and six factors and five levels orthogonal numerical simulation experiment were carried out with mine 4602 working face as the background. The experimental results showed that: (1) The main factors influencing the depth of damage floor were incline section length

floor lithological combination

roof lithological combination

mining depth and mining height were weakened in order

dip angle was weakest; (2) that roof lithological combination was the key factors in influencing the floor damage depth was made clear for the first time; (3) prediction model of mining depth of damage floor on incline section length - floor and roof lithological combination - mining depth - mining height - dip angle was established

the calculation results were more close to reality comparing with the results of mining regulation empirical formula calculation

and the precision was high

the error was low

and it can meet the engineering use basically. The results of the study had a positive guiding significance on the research of the depth of damage floor and engineering application.

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SUN Zhi-liang

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WANG Ye-chen-zi

LIU Zhong

REN Wei-zhong

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LI Peng

WANG Zhi-liang1

Related Institution

State Key Laboratory of Geomechanics and Geotechnical Engineering Safety, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

Hangzhou Urban Construction Fire Protection Center (Hangzhou Urban Construction Information Center)

Hangzhou Kance Engineering Consultants Ltd.

Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology

School of Mechanics and Civil Engineering, China University of Mining and Technology

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