粉噴樁復合路基加固機理及沉降計算與預測研究.pdf

1、武漢理工大學碩士學位論文粉噴樁復合路基加固機理及沉降計算與預測研究姓名：石端文申請學位級別：碩士專業(yè)：防災減災工程及防護工程指導教師：李新平20090501ABSTRACTAsacommonfoundationreinforcementmethod，DryJetMixingPile(DJMP)compositefoundationiswidelyusedinthereinforcementofthehighwaysoftsoilsubg

2、radeThetheoryresearchoftheDJMPcompositefoundationlagsbehindtheengineeringpracticebecausethediversityofthesoilandthecomplexityoftheinterrelationsofthecompositematerialbetweensoilThesettlementcalculationandthesettlementpre

3、dictionoftheDJPMcompositeismorebasedontheengineeringpracticeThenumericalmethodshowgraduallythesuperiorityinthesettlementcalculationandthesettlementpredictionandguidetheengineeringconstructionasthecomputertechnologydevelo

4、prapidlyWiththebackgroundofthemonitoringandresearchofthesoftsoilsubgradereinforcementoftheconstructingDaguangbeihighwayMachengXishuibranchinHubeiprovince，associatedwithinsuitmonitoringvaluesoveroneyearstudythemechanism，s

5、ettlementcalculationandpost—predictionoftheDJMPcompositesubgradeWecanachievefollowingconclusions：(1)Basedonthepreviousachievementandtheinsuitmonitoringresearch，studythemechanismofthereinforcementofDJMPanddiscusssimplythe

6、workmechanisminfluencefactorinthePhysicsandChemistryDiscussthephysics，chemistrymechanicalconditionandtheappliedareasoftheDJMPsubgradeafterreinforcement(2)Associatedwiththefinitedifferencenumericalanalysismethod，simulatet

7、hepracticalsoilloadingandcalculatethesettlementofthetestsubgradesectionusingtheDMPJreinforcementmethodWiththecomparison，itisshowedthatthevalueofthecalculationisaccordwiththeinsuitmonitoringvaluewhichislargelyreducedafter

8、thereinforcementItiSconcludedthatthefinitedifferencemethodCanbeappliedinthecalculationofthecompositesubgradesettlementAtthesametime，studytheworkconditionofthecompositesubgradeanddiscussthecorrelativefactorsofthesubgraded