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1、北京交通大學(xué)碩士學(xué)位論文川藏公路前龍段滑坡整治技術(shù)研究姓名:孫波申請學(xué)位級別:碩士專業(yè):巖土工程指導(dǎo)教師:楊成永20050301北京交通人學(xué)同等學(xué)力碩+學(xué)位論文摘要本論文以18滑坡抗滑工程為依托,通過對比分析現(xiàn)場抗滑結(jié)構(gòu)物實(shí)測資料和原設(shè)計(jì)計(jì)算,對錨索抗滑樁及錨索框架與巖上體的相互作用和設(shè)汁理論進(jìn)行了較為深入的研究,希望通過本次研究,對此類新型抗滑支擋結(jié)構(gòu)物的沒計(jì)理論提供新的依據(jù),進(jìn)而優(yōu)化工程結(jié)構(gòu),確保工程的穩(wěn)定和安全。論文詳細(xì)論述了錨索抗滑樁和錨索框架的設(shè)計(jì)方法,指出了預(yù)應(yīng)力錨索樁、普通抗滑樁及錨索框架的優(yōu)缺點(diǎn)和各自的適用條件。詳細(xì)分析了錨索拉力與
2、樁后土體的相互作用,提出了樁后抗力對樁身內(nèi)力的影響,這種影響使得錨索樁身負(fù)彎矩比原設(shè)計(jì)方法所考慮的要小很多,在設(shè)計(jì)中不能忽略這種相互作用的影響;首次引進(jìn)錨索拉力系數(shù)(m),指出施加在樁上的錨索預(yù)應(yīng)力須與滑坡推力相匹配,當(dāng)O.15≤m≤O.25時,樁與錨索的受力比較協(xié)調(diào)。通過現(xiàn)場試驗(yàn)與理論分析相結(jié)合的方法,對預(yù)應(yīng)力錨索框架受力機(jī)理分析進(jìn)行了研究,提出了新的預(yù)應(yīng)力錨索框架的內(nèi)力計(jì)算模式。分析了框架錨索張拉次序?qū)﹀^索預(yù)應(yīng)力的影響。關(guān)鍵詞:錨索抗滑樁框架樁后抗力錨索拉力系數(shù)北京交通大學(xué)『刮等學(xué)山顱士學(xué)位論文AbstractThepaperbasedonth
3、eanti—slideengineeringofl#landslideandbycomparingandanalyzingoriginaldesignandcalculationsandfieldobservationinformationofanti—slidestructure,deeplyresearchesinteractionmechanismbetweenanchorwireanti—slidepileandanchorwiseframeworkandrockaswellasdesigntheory.Ittriestoprovideth
4、eorybaseforsuchnewtypeofanti-slideretainingstructurethroughtheresearch.Thenoptimizesdesignofengineeringstructuresothatitc強(qiáng)ensurethestabilityandsafetyoftheengineering.Thepaperdiscusesindetailthedesignmethodofanchorwireanti—slidepileandanchorwireframeworkandpointsoutthemeritsand
5、shortcomingsofprestressanchorwireanti—slidepile,commonanti-slidepileandanchorwireframeworkandtheirapplicationcondition.Thepaperanalyzesinteractionbetweenanchorwiretensionandsoilbehindthepileandproposeseffectofresistantforcebehindpiletotheinternalforceinpilebody.Theeffectmakesn
6、egativebendingmomentofanchorwirepilesmallerthanthatconsideredinoriginaldesignmethod.Theeffectofinteractioncouldnotbeignoredinthedesign.Basedonmethodofconnectingfieldwiththeoreticalanalysis,thepaperanalyzesmechanismofforcesubjectedtoanchorwireframework,andproposesacalculationmo
7、deofinternalforceofprestfessanchorwireframework.Inadditions,thereportpreliminarilyanalyzestheeffectoftensionorderprestressofanchorwire,Keywords:anchorwireanti—slidepile,framework,resistantforcebehindpile,ThecoefficientofanchorwireofforceII北京交通人學(xué)同等學(xué)歷碩士學(xué)位論文1緒論1.1立題的意義和背景』II臧公路二郎
8、山隧道附近因受龍門?等多期構(gòu)造影響,滑坡等IlJ體病害成群分布。其中l(wèi)”滑坡位于四川省天全縣兩路鄉(xiāng)二二郎山東坡龍膽溪右岸,