粉噴樁復(fù)合路基加固機(jī)理及沉降計算與預(yù)測研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文粉噴樁復(fù)合路基加固機(jī)理及沉降計算與預(yù)測研究姓名：石端文申請學(xué)位級別：碩士專業(yè)：防災(zāi)減災(zāi)工程及防護(hù)工程指導(dǎo)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