河滩粉细砂层中水泥搅拌桩的施工工艺

文松霖1,张明光2(1.,430010;2.,430010):;,,,,,,,,:,,,:TU473:B:1004-3152(2008)02-0013-041;,,,(),,,(),[1]22.1,2,,,120cm@70cm@40cm,,110.180cm@60cm@40cm,J0.1,0.67cm3/s~0.83cm3/s,4;22J=0.1:2007-01-09:,,1962,,,:,,,,3,,,,,,,,,,28904341,:,(J=0.1)(J=0)2,,(J=0.1)(J=0)12,(J=0.1),J=0.1(J=0)4~12%,2,(J0.1),,1(%)(MPa)28d60d90d91215(J=0)0.941.682.121.352.072.591.652.643.1291215(J=0.1)0.901.642.071.082.042.471.292.372.762(%)(cm/s)28d60d90d91215(J=0)4.08@10-55.52@10-68.20@10-87.13@10-61.21@10-64.20@10-86.37@10-66.34@10-72.14@10-891215(J=0.1)4.71@10-56.59@10-61.47@10-77.45@10-61.38@10-68.17@10-86.58@10-66.86@10-75.77@10-82.2,;,,:600mm800mm,81215m;:15%(),1B1PH-5P(5)¹:,,º:,,1420085PH-5P(,)»:,(),,¼,,,67,,672.3,,,,,,,(10m),(1/2)2%~4%,3%~5%,,[2~7],,,,,,,,,,/0,,50~70cm/min,,,,,,,,,,3(m/min)(MPa)(MPa)(%)0.5~0.71.2~1.60.5~1.313~15:0.3~0.5m,,;,152:0.3~0.5m,,,0.3~0.5m,;,,0.4~0.6MPa,,,,,,3,,(J0.1)J=0.1(J=0)4~12%,2,50~70cm/min[1].[R].20057[2].[M].:,1999[3],.[M].:,2000[4].[M].:,1997[5].[][D].,20015[6],.[J].,2002(4)[7].[][D].,2001ConstructionTechnologyResearchofCementMixingPilesinFineSandStratumWENSonglin1,ZHANGMingguang2(1.GeotechnicalDivisionofYangtzeRiverScientificResearchInstitute,Wuhan430010;2.ChangjiangInvestigationandDesignInstituteofCWRC,Wuhan430010)AbstractTheXinglonghydro-junctionisoneoftheassistantprojectsintheSouthtoNorthwatertransfercanalplannedtobuildinupperandlowerreachofHanjiangRiver.Theprincipalpartswillbebuiltondeepfinesandstratum.Structureofthisstratumisalittleloose,greatcompressedandlowbearing.Accordingtotheengineeringgeologyproperties,itisplannedtoa-doptmixingpilestodealwiththeloosefinesandstratumwithdistributionofgrid-type.Inordertosupplyreasonabletreatmentmethodofdeepmixingpileswithdistributionofgrid-type,itisnecessarytodeterminedesignandconstructionparameter,ofmixingpilesinfinesandstratumfoundationthroughexperiments.Accordingtothelaboratorysimulatingtestachievement,ithasstudiedconstructiontechnologyofmixingpilesindeepfinesandstratum,andputforwardsuggestedconstructionparame-terandtechnologyofcementmixingpilesinfinesandstratum.Keywordsfinesand,mixingpile,constructionparameter,constructiontechnology162008