高壓旋噴樁在高速公路軟弱地基中的應(yīng)用研究.pdf

1、國(guó)壓姿科技丈肇學(xué)位論文秀i女尸壹?jí)ù箟櫰r生壹焦堂整塾型些墨生盟墨盟塹墨j!堂咧!曬唑8鯉也墮業(yè)墜型型!墮業(yè)墮型!生；M堂!塑墅業(yè)墊堂墮墜一一一研究生姓名導(dǎo)師姓名、職稱(chēng)申請(qǐng)學(xué)位級(jí)別學(xué)科、專(zhuān)業(yè)學(xué)位授予單位—————』L』|_———一————韭主生_三墜絲—一砸士—————些生!墨———一————受塑塑型型L—一Subject：TheApplicationResearchofHighPressureJetGroutingPileinExpre

2、sswaySoftFoundationSpecialty：GeologyEngineeringName：ZhangxinInstructorZhangzhipeiABSTRACT(Signature)(Signature)么掣≤切吐喲p嶧HighpressurejetgroutingpiletechnologyhasbeenintroducedintoChinaformorethanfortyyearssince1970sAtthatt

3、ime，thistechnologywasmainlyusedinconsolidationofsoftsoilfoundation，itwasappliedinimpermeabledamafter1980sAtpresent，ithasbeenspreadedoverthecountryandappliedinlargescaleprojectssuchastheXuan—DaexpresswayandJingQinexpressw

4、ayThetechnologyhasremarkablecharactersofsafetybettersuitabilityonsoil，lowernoises，highpileshafcstrength，controllableconsolidationfigure，aboundantmaterial，lowerpriceandSOon；SOitiswidelyappliedinconsolidationofbuildingfoun

5、dation，deepfoundationpitexcavationandretaining，stabilityofslope，impermeabledam，etcSoftloessfoundationofYin—Zhongexpresswaymainlydistributesintheditchspotwhichexpresswayacrossesthemountainousareathedistilbutedscopeandbasa

6、lsurfaceiSrelationwiththerivererosiondegreeWatercontentofsoftloessinthisareaishigh，W=245351％，W≥WLnaturalvoidratioe0=068～131，thecompressibilityisbig，theintensityislowThedegreeofsaturationisbig，Sr=817％IL2110，mostlyassumess

7、oftplastictoflowplastic，theengineeringgeologynatureisbadAftertheanalysisandcomputation，thegroundbiggestsubsidencequantityis8155mm，thebearingcapacityofthefoundationisabout70100kPaThesoilfillingdepthofthissoftfoundationgen

8、erallyis3～795mthebearingcapacityofthefoundationshouldabove150～200kPa，thesubsidencequantityshouldbesmallerthan300ram，thestablesafetyfactorshouldbebiggerthanabove11Obviouslythissoftloessfoundationcannotsatisfytherequestoft