摘要
依据野外调查，文章分析了青岛一兰州高速公路邯郸至涉县段线路所经过的北八特采空区地表塌陷特征和影响因素，确定了采空区地面塌陷危险性的评价指标和隶属度，进而通过专家权法对评价指标进行赋值，运用GIS的叠加、空间分析等功能，从地表沉陷和空洞两方面综合评判了北八特采家区地表塌陷危险性。评判结果表明，地面塌陷危险区主要分布在K123＋450～K123＋700、K123＋825～K124＋150、K124＋750～K124＋950段，采空区对拟建高速危害大，必须对此段进行采空区处理。
According to field investigation, the gound collapse characteristics and influence factors of Beibate mined - out area along Qingdao- Nanzhou express highway has been analysed in this paper. The evaluation indices and its subjection degree for ground collapse risk in mined - out area has been made certain. The indices are evaluated farther by ＂Expert Authority＂ method. The ground collapse risk is evaluated by using GIS functions such as overlay analysis and spatial analysis from two aspects of ground sinking and sinking hole. The evluation result shows that the danger zone of ground collapse mainly distributes K123 ＋450 - K123 ＋ 700, K123 ＋ 825 - K124 ＋ 150, K124 ＋ 750 - K124 ＋ 950 sects. The mined - out area is harmful for the planning highway. The sects of dander must be improved before the highway build.
出处
《煤炭工程》
北大核心
2008年第9期119-123,共5页
Coal Engineering
基金
河北省交通厅基金项目(Y-060236)
关键词
采空区
地表塌陷
危险性评判
GIS
mined- out area
ground collapse
evaluation of risk degree
GIS
