矿区大型断层碎屑分维及其水文地质工程地质意义
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摘要
文章以淮北桃园矿F2断层带碎屑数据为例,依据分形原理,得到颗粒分布分维,并与断层碎屑物的物理力学性质对比发现,分维与断层活动方式和地震几率、黏粒含量、渗透系数、黏聚力、内摩擦角等参数有紧密的相关性,能够从多方面体现断层带的水文地质工程地质性质。
A fractal dimension model of grain size distribution is set up according to fractal principles with the data of the fault F2 gouges in Taoyuan coal mine,Huaibei coalfield.By comparing to the soil mechanical properties,it is found that the gouge fractal dimensions are closely related to fault properties such as activity modes,earthquake possibilities,clay proportions,permeabilities,cohesions and internal friction angles.Thus the fractal dimension may represent hydrogeologic and engineering-geologic features of the fault.
A fractal dimension model of grain size distribution is set up according to fractal principles with the data of the fault F2 gouges in Taoyuan coal mine,Huaibei coalfield.By comparing to the soil mechanical properties,it is found that the gouge fractal dimensions are closely related to fault properties such as activity modes,earthquake possibilities,clay proportions,permeabilities,cohesions and internal friction angles.Thus the fractal dimension may represent hydrogeologic and engineering-geologic features of the fault.
引文
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[14]伍岳峰.土颗粒粒径分维与土的黏聚力的关系[J].湖南水利水电,2007,(2):23-24.
[15]谢学斌,潘长良.排土场散体岩石粒度分布与剪切强度的分形特征[J].岩土力学,2004,25(2):287-291.
[16]Rawls W J,Brakensiek D L.Utilizing fractal principlesfor soil hydraulic properties[J].Journal of Soil and WaterConservation,1995,50(5):463-465.
[17]任光明,聂德新.软弱层带夹泥粒度成分的分形研究[J].地质灾害与环境保护,1997,8(4):1-8.
[18]Gori U,Mari M.The correlation between the fractal di-mension and internal friction angle of different granularmaterials[J].Soil and Foundations,2001,41(6):17-23.
[2]Edgar G A.Measure,topology,and fractal geometry[M].New York:Springer-Verlag,2007:1-35.
[3]Barton C C,La Pointe P R.Fractals in the Earth sciences[M].New York:Plenum Press,1995:1-271.
[4]Brosch F J,Polsler P,Riedmüller G.The use of fractal di-mension in engineering geology[J].Bulletin of EngineeringGeology and the Environment,1992,45(1):83-88.
[5]Thompson A H.Fractals in rock physics[J].Annual Re-view of Earth and Planetary Sciences,1991,19:237-262.
[6]胡海浪,黄秋枫.岩体工程中分形理论应用初探[J].灾害与防治工程,2007,(1):19-24.
[7]Tyler S W,Wheatcraft S W.Fractal scaling of soil particle-size distributions:analysis and limitations[J].Soil ScienceSociety of America Journal,1992,56(2):362-369.
[8]谌文武.断层岩的工程性质与环境效应[D].兰州:兰州大学资源环境学院,2004.
[9]邵顺妹,邹谨敞.断层泥分形结构与断层运行特征[J].高原地震,1997,9(4):9-17.
[10]葛晓光.南黄淮新生界底部含水层沉积特征和工程性质[M].合肥:合肥工业大学出版社,2003:30-43.
[11]Thevanayagam S,Nesarajah S.Fractal model for flowthrough saturated soils[J].J Geotech and Geoenvir En-grg,1998,124(1):53-66.
[12]Katz A J,Thompson A H.Fractal sandstone pores:im-plication for conductivity and pore formation[J].PhysRev Lett,1985,54(12):1325-1328.
[13]刘俊亮,田长安,曾燕伟,等.分形多孔介质孔隙微结构参数与渗透率的分维关系[J].水科学进展,2006,17(6):312-317.
[14]伍岳峰.土颗粒粒径分维与土的黏聚力的关系[J].湖南水利水电,2007,(2):23-24.
[15]谢学斌,潘长良.排土场散体岩石粒度分布与剪切强度的分形特征[J].岩土力学,2004,25(2):287-291.
[16]Rawls W J,Brakensiek D L.Utilizing fractal principlesfor soil hydraulic properties[J].Journal of Soil and WaterConservation,1995,50(5):463-465.
[17]任光明,聂德新.软弱层带夹泥粒度成分的分形研究[J].地质灾害与环境保护,1997,8(4):1-8.
[18]Gori U,Mari M.The correlation between the fractal di-mension and internal friction angle of different granularmaterials[J].Soil and Foundations,2001,41(6):17-23.
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