首页|采空区地表沉降分析方法的对比及其稳定性评价

采空区地表沉降分析方法的对比及其稳定性评价

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地表沉降分析方法对不同地质情况具有不同的精度及适用性.为研究地表沉降分析方法对砂岩型薄层浅埋煤矿采空区的精度及适用性,以江西省萍乡市金龙煤矿采空区为例,采用地表位移监测总结法、概率积分法以及数值模拟法等方法进行沉降分析精度对比研究.研究结果表明,针对砂岩型薄层浅埋煤矿采空区地表沉降分析,地表位移监测总结法精度最高,适用性好,但时间及人工成本较大;数值模拟方法精度次之,适用性好;概率积分法精度较低,适用性较差,在综合精度及成本条件下数值模拟方法最优.
Camparison of Surface Subsidence Analysis Methods in Mined-out Areas and Its Stability Evaluation
The surface subsidence analysis method has different accuracy and applicability to different geological conditions.In order to study the accuracy and applicability of the surface subsidence analysis method to the goaf of sandstone-type thin-bedded shallow coal mine,taking the goaf of J inlong Coal Mine in Pingxiang City,Jiangxi Province as an example,the probability integration method,the surface displacement monitoring summary method and the numerical simulation method was used to compare the accuracy of the subsidence analysis.The results showed that for the surface subsidence analysis of the goaf of sandstone thin-bedded shallow coal mines,the surface displacement monitoring summary method had the highest accuracy and good applicability,but the time and labor costs were large.The numerical simulation method had the second highest accuracy and good applicability.The probability integration method had low accuracy and poor applicability.Under the condition of comprehensive trade-off accuracy and cost,the numerical simulation method is the best choice.

Mine goafSurface subsidenceProbability integral methodSurface displacement monitoring summary methodNumerical simulation method

廖家荣、张奎涛、陈怿旸、孙瑛莹、王凯

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江西省交通设计研究院有限责任公司,江西南昌 330052

采空区 地表沉降 概率积分法 地表位移监测总结法 数值模拟法

2024

云南师范大学学报(自然科学版)
云南师范大学

云南师范大学学报(自然科学版)

CSTPCD
影响因子:0.54
ISSN:1007-9793
年,卷(期):2024.44(6)