鉆孔灌注樁后壓漿技術(shù)的研究和應(yīng)用.pdf

1、申請同濟(jì)大學(xué)工程碩士學(xué)位論文鉆孑L灌注樁后壓漿技術(shù)的研究和應(yīng)用培養(yǎng)單位：土木工程學(xué)院橋梁工程系專業(yè)：建筑與土木工程研究生：陳飛指導(dǎo)教師：吳迅教授副指導(dǎo)教師：楊建椿高級工程師二oo七年三月AbsUactAbstractThepostgroutingtechnologiesofboredpilescarleliminatetheadverseeffectsonthecuttingatthebottomofpileandthesiltarou

2、ndpileandcanimprovetheimpactbetweenpileandsoil，andCallincreasethebearingcapacityofsinglepilegreatlyTherefore，thetechnologywaswidelyusedinconstructioninrecentyearsThepaperdiscussedtheimpactingmechanismofthecementfluidandt

3、hesoilaroundthepileandprovidestheguidancefordesignandconstructionAndthiscanimprovetheapplicationofthetechnologyofpostgroutingThepaperexpatiatesitfromseveralaspectsasfollowFirstlybasicfeaturesofgroutandthetheologicalprope

4、rtyofgroutimpactedbyforceareanalyzedinthepaperSecondlytheauthoranalysesthemechanismthatthepostgroutingincreasesthebearingcapacityoftheborepileTh砌lytheauthorstudiesfurthertheeffectofthepost—groutingforthestressandtheshear

5、stabilityofsoilwithmicroaspectFourthlybasedonthetheoriesabove—mentionedandthepracticeofengineering，theauthorsummarizesaseriesofpracticingtechnologicalprocessofthepostgroutingtheauthorconsiderstheenlargetopatthebottomofpi

6、letigidityfoundationaccordingtotheimpactmodelbetweenpileandsoilTheenlargetopispressuredpartlywhentheloadalongtheaxisofpileTheeffectivepressuredareaisthehorizontalprojectionofthepressuredareaThentheauthorgivesoutanexperie

7、ntialformulaofsingle—pilelimitingbearingcapacityingravelstratumLastlythetheoryabovementionedisusedintheprojectofpost—，groutinginWuhanThepostgroutingcanimprovethebearingcapacityofsinglepilegreatlyandreducethedifficultyand