黑龙江科学
黑龍江科學
흑룡강과학
HEILONGJIANG SCIENCE
2015年
12期
37-39
,共3页
FLAC3D%地表下沉系数%水平移动系数%采厚%采深
FLAC3D%地錶下沉繫數%水平移動繫數%採厚%採深
FLAC3D%지표하침계수%수평이동계수%채후%채심
FLAC3D%Surface subsidence coefficient%Horizontal displacement coefficient%Mining thick%Mining depth
水下煤层安全开采对于煤矿来说是至关重要的，以位于水库下的某煤田为例，运用 FLAC3D 数值模拟软件，模拟分析3m、4.5m、6m 三种不同开采厚度和300m、400m、500m 三种不同开采深度对地表移动变形规律的影响，经计算得到地表下沉系数和水平移动系数，分别将其与不同采厚和采深进行数据拟合，结果表明，采厚、采深与地表下沉系数和水平移动系数均呈现幂数关系，随着采厚和采深增加，地表移动变形规律分别呈现缓慢增加和减小趋势。经计算知水库下煤田可以进行正常开采，不会对水库的安全造成威胁。
水下煤層安全開採對于煤礦來說是至關重要的，以位于水庫下的某煤田為例，運用 FLAC3D 數值模擬軟件，模擬分析3m、4.5m、6m 三種不同開採厚度和300m、400m、500m 三種不同開採深度對地錶移動變形規律的影響，經計算得到地錶下沉繫數和水平移動繫數，分彆將其與不同採厚和採深進行數據擬閤，結果錶明，採厚、採深與地錶下沉繫數和水平移動繫數均呈現冪數關繫，隨著採厚和採深增加，地錶移動變形規律分彆呈現緩慢增加和減小趨勢。經計算知水庫下煤田可以進行正常開採，不會對水庫的安全造成威脅。
수하매층안전개채대우매광래설시지관중요적，이위우수고하적모매전위례，운용 FLAC3D 수치모의연건，모의분석3m、4.5m、6m 삼충불동개채후도화300m、400m、500m 삼충불동개채심도대지표이동변형규률적영향，경계산득도지표하침계수화수평이동계수，분별장기여불동채후화채심진행수거의합，결과표명，채후、채심여지표하침계수화수평이동계수균정현멱수관계，수착채후화채심증가，지표이동변형규률분별정현완만증가화감소추세。경계산지수고하매전가이진행정상개채，불회대수고적안전조성위협。
It is crucial to mine underwater seam for coal mine, taking reservoir in a coalfield as an example, using FLAC3D numerical simulation software, simulating and analysing three different mining thickness such as 3 m, 4.5 m, 6 m and three different mining depth such as 300 m, 400 m and 500 m to influence surface movement deformation law, the effect of the coefficient of surface subsidence and horizontal movement coefficient is calculated, with different thickness and fitting method for data mining depth, the results show that the mining thick, mining depth and coefficient of surface subsidence and horizontal movement coefficients appear exponential relationship, with mining thick and mining depth increasing, the surface movement deformation law showed a trend of slow increase and decrease respect respectively. By calculating, coalfield under reservoir can be mined normally, which will not threaten the safety of the reservoir.
