复杂开采沉陷分层传递预测模型
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国家重点基础研究发展计划(973计划)资助项目(2009CBT24606);国家自然科学基金资助项目(50674108);国家创新研究群体基金资助(50621403)


Stratification transfer model for predicting complex mining subsidence
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    摘要:

    在盐岩水溶开采沉陷新概率积分三维预测模型的基础上,对开采沉陷上覆岩层的传递规律进行研究,提出开采沉陷分层传递预测模型,该模型可以考虑不同岩层岩性对开采沉陷的影响,能够有效提高非规则采空区开采沉陷的预测精度。同时针对分层传递模型中不规则三重积分难以获得解析解的情况,给出模型的离散数值解法,可以方便的通过数值计算对开采沉陷进行预测,最后应用叠加原理给出多溶腔开采沉陷预测模型。实例证实传递预测模型较传统预测方法具有更高的预测精度。并成功应用于金坛盐矿战略油气储库地表沉陷预测。

    Abstract:

    Based on the new probability integral 3D model for forecasting the solution mining subsidence, the transfer rule of superincumbent strata in mining subsidence is studied and a prediction model of stratification transfer for mining subsidence is developed. The model can take into account of the impacts of features of different rock strata on mining subsidence and improve prediction precision of irregular goaf. Based on the situation that it’s hard to get the analytical solution of the model with triple integral, the numerical algorithm of the model is supplied. With the superposition principle theory, a prediction model of multicavern mining subsidence is developed. With the application in ground subsidence prediction of oilgas storage in Jintan, it proves that the transfer prediction model holds higher precision than those of traditional models

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任松,姜德义,杨春和.复杂开采沉陷分层传递预测模型[J].重庆大学学报,2009,32(7):815-822.

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  • 收稿日期:2009-03-03
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