山东国土资源Issue(7)：55-58,4.
基于FLAC3D数值模拟的老采空区剩余沉降量分析计算--以山东枣庄安博化工项目为例
Calculation and Analysis on Residual Subsidence Amount in Old Goaf Based on FLAC3D Numerical Simulation
臧浩 1种衍飞 1冯堂武 1于树宾 1张昌龙1
作者信息
- 1. 山东省煤田地质局第一勘探队，山东 滕州 277500
- 折叠
摘要
Abstract
Calculation of residual subsidence amount in mined out area is a method for analyzing danger-ous degrees in goaf quantitatively.The state of early coal forming goaf has been directly simulated by using FLAC3D ,and the residual settlement of the old mined out area has been calculated.Taking chemical engi-neering proj ect in Zaozhuang city of Shandong province as an example.Firstly,by using geophysical pros-pecting and drilling methods,depth,roof falling and broken condition of old goaf have been gained.Sec-ondly,combining with parameters results of geological materials obtained from core test,FLAC3D simula-tion has been carried out,residual sbusidence amount under the action of gravity and residual subsidence a-mount after loading construction of old goaf have been calculated.Compared with traditional probability in-tegral method,subsidence results are similar.It is showed that the calculation method is reliable.Finally the relationship between load stress and residual subsidence have been analyzed.It will provide scientific basis and references for stability evaluation and calculation of residual subsidence amount in old goaf.关键词
老采空区/剩余沉降量/FLAC3D模拟/山东枣庄Key words
Old goaf/residual subsidence amount/FLAC3D simulation/Zaozhuang in Shandong province分类
建筑与水利引用本文复制引用
臧浩,种衍飞,冯堂武,于树宾,张昌龙..基于FLAC3D数值模拟的老采空区剩余沉降量分析计算--以山东枣庄安博化工项目为例[J].山东国土资源,2015,(7):55-58,4.
