強(qiáng)夯法處理濕陷性黃土地基地面振動特性的研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文強(qiáng)夯法處理濕陷性黃土地基地面振動特性的研究姓名：劉健申請學(xué)位級別：碩士專業(yè)：巖土工程指導(dǎo)教師：張繼春20090501西南交通大學(xué)碩士研究生學(xué)位論文第1I頁AbstractThestudyatpresentonthevibrationeffectofDynamicConsolidation(DC)mainlyconcentratesinanalyzingtheattenuationruleofthemaximumv

2、ibrationvelocitymaximumvibrationacceleration，maximumvibrationdisplacementandvibrationfrequencythosearebasedonthevibrationparametersofdifferentradiusHowevertothesametampingpoint，thevibrationparametersarechangingwhilethefo

3、undationisbeenconsolidating，thereforeit’SnecessarytostudythevibrationruleofthesametampingpointinthetampingprocessT【lispaperanalyzesthevibrationruleofthesametampingpointaccordingtothelocaltestingdataofimprovingthecollapsi

4、bleloessfoundationatZhengzhouXianspecialpassengertransportrailwayinHuayinCityAnalyzethecharacteristicsoftheimpactstresswavebyimpacttheorywhichpresentsindexattenuationAccordingtotheimpacttheoryeducetheexpressionofthelosin

5、genergyintheimpactingprocessbetweentamperandsoilmassThelosingenergyisalSOusedtoconsolidatethesoil，therestspreadsabroadbywaveBasedonthemeasureddata，indicatethatthevibrationvelocityandvibrationaccelerationattenuatewithinde

6、xgrade，forthebeginning，thevalueofthevelocityisabout1／3ofthepeakvaluetheattenuationrangeis30％60％theattenuationcoefficientK=017，口=O98、枷ilethetampingnumberisuptosomevaluethevibrationparametersbecomestable，whichindicatesthes

7、tateofthesoilisalsostableanalyzetheprocessbytheruleofenergydistributioninDCprocessThefrequencydecreaseswhenthedistanceincreases。between18Hzand25Hzbutthereisnodifferenceatthesamepoint，becausefrequencyonlyindicatesthechara

8、cteristicsofthesoilmassatthispointAccordingtotherelationbetweenvibrationvelocityandsoil，presentthatinspectingthevibrationvelocitytoidentifythetampingnumberTheestimateofDCvibrationinfluenceonenvironmentisbythenationdemoli

9、tionsafetycriterionandtheearthquakeintensitystableTheshockwaveofthe2000kN。menergylevelexperimentationissafetothegeneralbuildingbeyond50mItiSgeneraltOsetupthevibrationseparationditchtominishtheinfluenceoftlleDCvibrationTh