金属矿山
金屬礦山
금속광산
METAL MINE
2015年
4期
220-223
,共4页
充填开采%统计检验%稳定性分析%季节性冻土层
充填開採%統計檢驗%穩定性分析%季節性凍土層
충전개채%통계검험%은정성분석%계절성동토층
Backfill mining%Statistical tests%Stability analysis%Seasonal frozen soil
为了准确获取充填面地表移动变形数据,有必要对各期监测数据的质量进行检验。利用F检验和t检验方法对寒区充填面观测站中监测点进行稳定性分析,结果表明观测期间控制点具有稳定性,进一步分析发现目标点存在3种形式的竖向移动:一是采煤引起的地表沉降,二是长期的汽车荷载作用下路基沉降现象,三是季节性冻土层的融沉现象。最后一种现象在我国高纬度地区较为普遍,该现象的产生将扩大地表移动盆地边界,减小主要影响正切值,不利于该类地质采矿条件下地表移动变形预计参数的准确获取。
為瞭準確穫取充填麵地錶移動變形數據,有必要對各期鑑測數據的質量進行檢驗。利用F檢驗和t檢驗方法對寒區充填麵觀測站中鑑測點進行穩定性分析,結果錶明觀測期間控製點具有穩定性,進一步分析髮現目標點存在3種形式的豎嚮移動:一是採煤引起的地錶沉降,二是長期的汽車荷載作用下路基沉降現象,三是季節性凍土層的融沉現象。最後一種現象在我國高緯度地區較為普遍,該現象的產生將擴大地錶移動盆地邊界,減小主要影響正切值,不利于該類地質採礦條件下地錶移動變形預計參數的準確穫取。
위료준학획취충전면지표이동변형수거,유필요대각기감측수거적질량진행검험。이용F검험화t검험방법대한구충전면관측참중감측점진행은정성분석,결과표명관측기간공제점구유은정성,진일보분석발현목표점존재3충형식적수향이동:일시채매인기적지표침강,이시장기적기차하재작용하로기침강현상,삼시계절성동토층적융침현상。최후일충현상재아국고위도지구교위보편,해현상적산생장확대지표이동분지변계,감소주요영향정절치,불리우해류지질채광조건하지표이동변형예계삼수적준학획취。
In order to accurately obtain filling mining surface deformation data,it is necessary to test the quality of moni-toring data at each period. The results show that control points are stable during monitoring through F-test and t-test for the sta-bility analysis of surface deformation monitoring data of filling in cold region. Then, further analysis indicates that there are three kinds of vertical movements:the first is the surface subsidence caused by mining;the second is roadbed subsidence under long-term car loads;the last one is thaw collapse of seasonal frozen soil. The last is more general in the high latitude regions of China,and this phenomenon will have some influence on the surface deformation monitoring data,which enlarges the surface movement boundary and reduces the main affecting tangent angle. It is not conducive for getting estimated parameter accurately for this kind of geological and mining conditions.