堆场大面积堆载周围环境影响分析.pdf

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1、周健等：堆场大面积堆载周围环境影响分析37堆场大面积堆载周围环境影响分析周健，张超，白彦峰，贾敏才T1．同济大学地下建筑与工程系．上海L；~0oo．92；2．同济大学岩土及地下工程教育部重点试验室。上海20o092)【摘要】为了有效地控制堆场堆载对周围环境的影响，及时调整或采取适当措施来确保工程正常安全运营提供依据，以矿石码头使用期间堆场周围建筑物沉降、土体深层水平位移的长期监测结果为基础，分析了大面积堆载对周围建筑物沉降的影响规律和堆场周围土体的深层水平位移的变形趋势。结果发现：垂直堆场方向离堆场越近建筑物的沉降越大，平行堆场方向越靠近堆场的中部建筑物的沉降越大；堆场周围土体

2、水平位移呈现“闭口型”，且堆场中部对周围土体的水平位移影响更明显，随着堆载时间增加，影响深度也越来越深，整个堆场有向北移动的趋势。周围建筑物的沉降和不均匀沉降不大，不影响建筑物的正常使用，周围土体的水平位移有增长的趋势，需要继续监测。【关键词】大面积堆载；沉降；水平位移；环境影响【中图分类号】TU433【文献标识码】B【文章编号】1001—6864(2(】10)O1—0037—03E]0NMEN-I’AIn佃IACrANAI』YSIsoFAoREYARDBYAIARGE—SCA正oREL0ADZHOUJian一，ZHANGChao，BAIYan．fengI，JMin—cai’(

3、1．DepartmentofGeotechnicalEnginee~g，TongjiUniversity，Shanghai200092，China；2．KeyLaboratoryofGeotechnicalandUndergroundEngineeringofMinistryofEducation，TongiiUniversity，Shanghai200092，China)Abstract：Basedonthelong—termmonitoringofbuilding’ssettlementandhorizontaldisplacementofthedeepsoilaround

4、anoreyardduringitsoperations，thisdissertationaimstoanalyzetheinfluenceofbuildingsettlementandthedeformationtrendofhorizontaldisplacementofthedeepsoilaroundtheoreyardbyalarge—scalepileload．Alloftheseefortsaretocontroltheimpactofyardloadingonthesurroundingsefectivelyandtoadjustortotakeappropri

5、atemeasuresontimetoensureoperationoftheproject’ssafety．Theconclusionisthattheclosertotheyard，themoresettlemnentintheverticaldirectionawayfromtheyard，whilethenearertothecenteroftheyard，thenloresettlementinthedirectionparalleltotheyard．Theresultalsoshowsthatthehorizontaldisplacementofsoilaroun

6、dtheyardis“closetype”．andthecentralyardhasagreaterimpactonthehorizontaldisplacementofthesurroundingsoil．Withtheincreasedtimeofpileload，theinfluenceisbecomingintensiveintermsofitsdepth，andthewholeyardpresentstomovetowardsnorthbecauseofpileload．Butthesettlementandtheunevensettlementofthesurrou

7、ndingbuildingsaI1enotobvious．whichdon’tafectthenormalusageofthem．Inaddition，thereisagrowingtendencyofthehorizontaldisplacementofsoilaroundtheyard，andthisphenomenonneedsalong—termmonitoring．Keywords：large-scalepileload；setdement；horizontaldisplaceme