19 4200812TheChineseJournalofGeologicalHazardandControlVol.19 No.4Dep.2008Q康小兵,许 模,陈 旭(1., 610059):岩体质量分类Q系统(以下简称Q系统)是目前应用最广的岩体质量分类方法之一。该方法是1974年挪威的巴顿(Barton)等人建立起来的,并且在长期工程实践中进行过多次修正。论文详细介绍了巴顿于2002年最新修正后的Q系统,并成功应用于西南某水电站坝址区岩体质量分级研究中。最后与其他分级方法进行了对比分析,显示了很好的相关性。:岩体质量分级;Q系统;最新修正;应用:1003-8035(2008)04-0091-05:P642.2:A:2007-12-10;:2007-12-19:(1981—),,,,。1 ,:,,,,,DeerRQD、Vp;,,(GB50267-99)、(Barton)Q。QQ,。、1972(Wickhan)1973(Bieniawski),200。:(1);(2),Q,Q;(3),Q38。Q。2 Q2.1 ,Q:Q=RQDJn×JrJa×JwSRF:RQD———Deere;Jn———;。Jr———;Ja———。。Jw———;SRF———。。6,Q。,Q。Q0.001~1000,,9(1),2。2.2 Q6。RQD、Jn、Jr、Ja、Jw、SRF,Q。Q、Qc、Q0。3~8Q。Q。Qc=Q×σc100,Q0Q。2.2.1 RQD(Deer,1963,3), 1 QTable1 SurroundingrockdescribeofQ-systemQ0.0010.1141040100400100010cm:RQD=[(10cm()÷)]×100%。RQD,0,10%。Q,RQD10,RQD=0,RQD=10。RQD,5。RQD(%)100,95,90。2 QTable2 RockmassclassificationofQ-systemQ4010~401~101~0.10.1ⅠⅡⅢⅣⅤ3 Table3 Rockmassqualitydata RQD(%)A.0~25B.25~50C.50~75D.75~90E.90~1002.2.2 Jn、,4。:3×Jn,2×Jn。4 JnTable4 AssignstandardofJnJnA.,0.5~1B.2C.3D.4E.6F.9G.12H.,,15J.,202.2.3 JrJr5。:5。3m,Jr1.0。、,,Jr0.5。Jr。。5 JrTable5AssignstandardofJrJr(a)(b)10cmA.4B.,3C.,2D.,1.5E.,1.5F.,1.0G.,0.5(c)H.1.0J.、1.02.2.4 JaJa,。,。Ja。。6。2.2.5 Jw、,7。:7C~F,,Jw。。0~5,5~25,25~250,250m,Jw1,0.66,0.5,0.33,RQDJn(0.5~25),。、Q。2.2.6 SRFSRF8,(B+S(fr)),,SRF92ZHONGGUODIZHIZAIHAIYUFANGZHIXUEBAO2008 6 JaTable6 AssignstandardofJaJa(a)(,)(°)JaA.、、、,、—0.75B.,25~351.0C.,、、25~302.0D.,()20~253.0E.(、、、、、,)8~164.0(b)10cm()F.、25~304.0G.、(,5mm)16~246.0H.、(5mm)8~128J.(,5mm),,Ja6~128~12(c)()KLM(G.H.J)6~246、88~12N,()—5.0OPR(G.H.J)6~2410、1313~20。8:(1),SRF25%~50%。(2)。,SRF2.55.0(H)。(3)L、M、N、、、,RQDJn50~200。(4)。0~5,5~25,25~250,250m,SRF5,2.5,1.0,0.5。,Jw,Q。7 JwTable7 AssignStandardofJwJw(MPa)JwA.,(5Lmin)0.11.0B.,0.1~0.250.66C.0.25~10.5D.,0.25~10.33E.,10.2~0.1F.,10.1~0.053 ,,820m,188×108m3,275m,12000MW。8 SRFTable8 AssignstandardofSRFSRF(a),A.,()10.0B.(≤50m)5.0C.(50m)2.5D.(),()7.5E.(),(≤50m)5.0F.(),(50m)2.5G.,()5.0(b),σcσ1σθσcSRFH.、、2000.012.5J.,200~100.01~0.31.0K.、,,10~50.3~0.40.5~2.0L.1h5~30.5~0.655~50M.3~20.65~150~200N.()21200~400(c):σθσcSRFO.1~55~10P.510~20(d),,R.5~10S.10~15、。:(P2β)、93 4,:Q(P1m)、(T3x)。~、。,、、、。。PD3。PD3,721.8m,,201m。65m;20m155m;0~48m72~114m;48~72m114~201m。0~40m,40~175.00m,175~201m。0~39.5m。39.50~201m。0~14m,14~31m。22~24m,2Lmin;31~50m,50~132m,132~194m。147~150m,0.5Lmin;173m0.3Lmin;194~201.4m,。9。9 PD3Table9 RockmassqualityclassificationofPD3(m)Vp(ms)TRMRQ0~34P2β345048.6Ⅲ40Ⅳ0.97ⅣⅣⅣ34~38P2β255045.6Ⅲ38Ⅳ0.73ⅣⅤⅣ38~59P2β428360.7Ⅲ45Ⅲ1.78ⅢⅢⅢPD359~71P2β500065.7Ⅱ54Ⅲ7.75ⅢⅢⅡ71~87P2β520066.1Ⅱ56Ⅲ10.44ⅡⅡⅡ87~153P2β416959.2Ⅲ46Ⅲ8.8ⅢⅢⅢ153~179P2β488666.6Ⅱ56Ⅲ12.2ⅡⅡⅡ179~201P2β485068.5Ⅱ63Ⅱ21.6ⅡⅡⅡ1 Fig.1 Graphofcorrelationanalysis 9,Q。3(1),Q。90%。Q。4 QQ,,,、。:[1] BartonN.RockmassclassificationandtunnelreinforcementselectionusingtheQ-system[A].In:Proc.Symp.RockClass.Eng.Purp.ASTMSpecialTechnicalPublication1984[C].Philadelphia:[s.l.].1988.59~88.[2] BartonN.SomenewQ-valuecorrelationstoassistinsitecharacterisationandtunneldesign[J].InternationalJournalofRockMechanics&MiningSciences,2002.(39):185~216.94ZHONGGUODIZHIZAIHAIYUFANGZHIXUEBAO2008 [3] 张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1994.[4] GB50287-99,水利水电工程地质勘察规范[S].[5] 刘霭彬,徐桂新,巴顿(Burton).Q系统分类法在鲁布革水电站厂房枢纽中的应用[J].水利水电技术,1986(8):12~20.IntroduceandapplicationofrockmassqualityclassificationQ-systemKANGXiao-bing,XUMo,CHENXu(NationalKeyLaboratoryofGeologicalHazardPreventionandGeologicalEnvironmentProtection,ChengduUniversityandTechnology,Chengdu 610059,China)Abstract:RockmassqualityclassificationQ-system(lattershortenedasQ-system)isoneoftheextensiveapplicationmethodsofrockmassqualityclassification.ThismethodiscreatedbyBartonandotherpeopleofNorwayin1974,andmodifiedmanytimesinlong-termengineeringpractice.ThepaperintroducesdetailedlythelatestQ-systemmodifiedbyBartonin2002,andsuccessfulyappliesittorockmassqualityclassificationresearchofhydropowerstationdamregioninsouthwestofChina.ThenthepapercontrastsQ-systemwithotherclassificationmethodsandpresentsagoodcorrelationship.Keywords:rockmassqualityclassification;Q-system;thelatestmodified;application《》《》、,1991。;(),、、,、、、、、、、、、、、、、、、、、、、、、、。、、、。(25),16,20.00,480.00,120.00()。:CN11-2852P,ISSNl003-8035,:82-362,:0265。(《》“”)。95 4,:Q