高速公路与下伏煤矿采空区相互作用规律探讨

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摘要从公路的采动响应特征、采空区的二次活化机制、不同工况条件下采空区地表移动与变形规律的有限元数值分析3个方面，探讨高速公路与下伏采空区相互作用问题。概化分析公路路线与采空区不同空间关系时，地表移动与变形的基本发展规律；总结不同开采方式形成采空区的特征、变形与破坏特征、二次活化机制及危害性评价方法；系统考虑公路、采空区、采矿特征、处治方式等各种影响因素，总结出不同工况组合情况下采空区剩余移动与变形的若干规律，涉及到不同采深、不同采厚、煤层倾斜、多层重复开采、临近采动、各煤层空间关系等各种复杂地质与采矿条件，以供矿区高速公路建设的规划、选线以及治理参考。

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关键词 ：数值模拟, 煤矿采空区, 高速公路, 相互作用

Abstract：Interaction of expressway and underlying mine goafs is discussed in detail，including the response characteristics of expressway under mining，the reactivation mechanism of goafs，the numerical simulation of subsidence and deformation at different engineering conditions. Firstly，the basic developing laws of ground movement and deformation at different spatial relationships between expressway and goafs are analyzed briefly. Then，the characteristics of goafs under different mining methods，characteristics of ground deformation and failure，reactivation mechanism and stability assessing methods are analyzed. Lastly，several laws of residual subsidence and deformation characteristics under different working conditions are summarized and compared. The important effect factors are taken into account when using finite element method，such as expressway，goafs，mining characteristics，treating methods，etc. Especially，the complicated geological and mining conditions with this problem are analyzed，including different mining depths and mining thicknesses，seam inclination，multi-mining，adjacent mining，spatial relationships between different seams，etc. The results can provide reference for expressway planning，line selection and mine goafs treatment.

Key words： numerical simulation mine goafs expressway interaction

收稿日期: 2010-05-20

引用本文:

童立元1，邱钰2，刘松玉1，方磊1. 高速公路与下伏煤矿采空区相互作用规律探讨[J]. 岩石力学与工程学报, 2010, 29(11): 2271-2276.
TONG Liyuan1，QIU Yu2，LIU Songyu1，FANG Lei1. DISCUSSION OF INTERACTION LAW OF EXPRESSWAY AND UNDERLYING MINE GOAFS. , 2010, 29(11): 2271-2276.

链接本文:

http://www.rockmech.org/CN/Y2010/V29/I11/2271

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