基坑土體主動區(qū)支護(hù)結(jié)構(gòu)變形與土壓力關(guān)系研究.pdf

1、湖北工業(yè)大學(xué)碩士學(xué)位論文基坑土體主動區(qū)支護(hù)結(jié)構(gòu)變形與土壓力關(guān)系研究姓名：陳澤世申請學(xué)位級別：碩士專業(yè)：巖土工程指導(dǎo)教師：何世秀莊心善20100301湖北工業(yè)大學(xué)碩士學(xué)位論文IIAbstractThispaperdiscussedtherelationsofdefmationearthpressureonsupptstructureoffoundationpits.Bymonitingnumericalsimulationoftheact

2、ualexcavationthefollowingconclusionswerereached:1、Theearthpressureatdifferentoperatingconditionsshoweddifferentchanges.Firstofall，earthpressurecurvesshowedclearnonlinearactiveearthpressureoflateralexcavationbecomeslarger

3、duetothesupptingrole.Localsoilpressureappearedinundulateincrementalchanges.2、Continuouswallofhizontaldisplacementatdifferentconditionshavedifferentperfmance.Beingpartofasupptiveroleaswellasrelativelysmallpartofthedepthof

4、excavationdisplacementchangeswerebigatbothendssmallinthedle.Walldisplacementincreasedinthedepthofexcavation.Whentherewasnosupptdisplacementdramaticallywaslarger.Themaximumdisplacementappearedintheexcavationwksnearthesurf

5、ace.3、Hizontaldisplacementearthpressurerelationsoncontinuouswallhaveshownaclearnonlinearrelationshipbuttheperfmanceofnonlinearlinearhasbeendifferent.PartofhizontaldisplacementearthpressureonContinuouswallshowedexponentia

6、lcurvesomeshowedsinecurveindicatingthatearthpressurecalculationsinaprojectshouldusedifferentfunctionfdifferentdefmation.4、Simulatedmeasuredvaluesincurvefittingwerebetterthereisdifferentthatsimulatedvaluesfthehizontaldisp

7、lacementwasgreaterthanthemeasuredvalueearthpressuresimulatedvaluewaslessthanthemeasuredvalue.5、Basedontheresearchresultsinchangerelationshipofhizontaldisplacementinternalfcewiththedynamicprocessofexcavationawayontheexcav

8、ationdesignfromstresscontroltodefmationcontrolhadreached.Thatiswhenthestressmeetstrengthconditionthenbythedisplacementconditionsonthecontinuouswalldefmationcontroltomeetthedefmationrequirements.Keywds:foundationpit，earth