含水层抽水试验水位恢复过程数据的直线图解分析法

200410SHUILIXUEBAO101:0559-9350(2004)10-0022-051212(1.7100542.830011)--P641.2ATheisTheisJacob[1,2]*Theisu0.01OlivierLumony[3]Theis3u0.2-23Daniel[4]2003-09-10(KZCX3-SW-326)(1958-)200410SHUILIXUEBAO10211.1sQs1Qs2TheisQtp[1]s=s1+s2(1)()114uWTQsπ=;()224uWTQsπ=(2)s1Q[L]s2Q[L]Q[L3T-1]W(u1)W(u2)Theis()()∫∞−=1exp1udxxxuW;()()∫∞−=2exp2udxxxuW(3)u1=r2*/4T(t+tp)u2=r2*/4Tt(4)r[L]*T[L2T-1]t[]tp[]1.2W(u)[1]()()∑∞=×−−+−−=2!1ln577216.0nnnnnuuuuW(5)Theisu0.013Jacob()*225.2lnµrTtuW=(6)t+tpu1=u*r2/4T(t+tp)u10.01(2)s1()*2125.2ln4µπrttTTQsp+=(7)s2u2=r2*/4Tttu20.01(5)3200410SHUILIXUEBAO103+=2*2225.2ln4urTtTQsµπ(8)u20.2(8)01.0!2222×uJacobs1(7),s2(8)1.3(7)(8)(1)()−+=TtrtttTQsp4ln4*2µπ(9)(9)t()−+=TtrttttTQtsp4ln4*2µπ(10)(10)(9)s-ts-r1.3.1s-t-(9)r(10)Y=ts(11)+=ttttXpln(12)A=Q/4πT(13)2*2*2164TQrTtrABπµµ−=−=(14)(10)Y=AX+B(15)YX(15)ABYXAB(11)(12)YXABAB(13)T200410SHUILIXUEBAO104T=Q/4A(16)(14)**=-4TB/Ar2(17)1.3.2s-rt(9)tY=s(18)X=r2(19)A=-Q*/16T2t(20)+=tttTQBpln4'π(21)(9)Y=AX+B(22)(22)YXYXABYXrt(18)(19)Y-XABAB(21)T+=tttBQTpln'4π(23)(20)**=-16T2tA/Q(24)22.1s-t(1)(11)(12)tiYiXii=1,2,,n(2)[5][6](3)(16)(17)T*s-ts-rs-t200410SHUILIXUEBAO1052.2s-r(1)(18)(19)sj-rjYj-Xj(2)s-t(3)(23)(24)T*s-r(t)3Q=960m3/dtp=180min20m1sp0.87m1t/min510152030406080100120s/m0.750.610.520.480.410.360.290.250.220.19Y3.756.107.809.6012.3014.4017.4020.0022.0022.8X18.0529.4438.4846.5058.3568.1983.1694.29102.96109.95u10.004020.003920.003810.003720.003540.003380.003100.002860.002650.00248U20.1490.07440.04960.03720.02480.01860.01240.00930.007440.00620sc/m0.7350.6090.5340.4810.4060.3580.2920.2480.2170.1923.1s-t(1)(11)(12)tiYiXi134(2)AB1Y-X1A=0.11B=-0.08[6]A=0.106B=-0.079(3)(16)T360.02m2/d(17)*0.001861Y-X3.2(1)sc17115min3.3(4)(5)u1u21565minu10.01u20.2u20.0180min3[1]200410SHUILIXUEBAO106OlivieLumony4(1)(2)(3)(4)[1].[M].1986.[2]DjauidChenaf,RobertP.Chapuis.Methodstodeterminestorativityofinfiniteconfinedaquiferfromarecoverytest[J].GroundWater,2002,40(4):385-389.[3]OlivierBanton,LumonyMulongoBangoy.Anewmethodtodeterminestoragecoefficientfrompumpingtestrecoverydata[J].GroundWater,1996,34(5):772-777.[4]DanielJGoode.CompositerecoverytypecurvesinnormalizedtimefromTheis'exactsolution[J].GroundWater,1997,35(4):672-678.[5].[M].1986.[6].QBASIC[M].1997.NewmethodforestimatingaquiferparametersaccordingtothedataofwaterlevelrecoveryinpumpingtestGUOJian-qing1,LIYan2,WANGHong-sheng1,MAJian2(1.ChanganUniversity,Xi'an710054,China;2.XinjiangInstituteofEcologyandGeography,Urumqi830011,China)Abstract:Anewmethodforanalyzingthedataofwaterlevelrecoveryinpumpingtestisproposed.Inordertoderivetheequationsforestimatingaquiferparameters,simplificationsofthewellfunctionaresuggested.Twotermsintheexpansionofwellfunctionaretakenastheapproximationofthewellfunctiondescribingthedrawdowncausedbyimaginarycontinuingpumping,andthefirstthreetermsaretakenastheapproximationofthewellfunctiondescribingthedrawdowncausedbyimaginaryrechargingwiththesameflowrateinpumpingstageatthemomentofpumpingstopping.Basedonthesesimplificationsthemethodsforestimatingthetransmissibilityandstoragecoefficientofaquiferaccordingtothedataofdrawdown-timeanddrawdown-distance200410SHUILIXUEBAO107areestablished.Keywords:aquiferparameters;pumpingtest;dataintheprocessofrecovery;drawingdown;wellfunction