中英文地勘(地质勘查)报告
时间:2025-04-21
时间:2025-04-21
第一章
1.Projectprofile
工程名称:
Projectname:工程概况
工程地点:
Position:
拟建工程概况:拟建厂房一间,南北长154.11m,东西宽105.28m,局部宽136.77m,为1层钢结构,局部2~3层,拟采用独立柱基础,柱间距约10m,厂房内设有8吨吊车,基底压力约50kPa。厂房中部设有2座高货架,货架基底压力约为120kPa,高货架部位独立柱基础基底压力按200kPa考虑。厂房内局部有地下室,埋深约5.0m。
Proposedprojectintroduction:One-storyProductionhall(PH)issteelstructure,someareahasmezzaninefloor.ThelengthofPHfromnorthtosouthis154.11m,andthewidthfromeasttowestis105.28m,partlythewidthis136.77m.Thecolumndistanceisabout10mwithproposedindependentfoundation.
AmongthePH,thereare8-toncranesinsomearea,andthe
subgradereactionisabout50kpa.InthemiddleofPH,thesubgrade
reactionofthetwohighrackstorageisabout120kpa.Inthepressurearea,thebottomelevationofthebasementisaboutEL-5.000m.
勘察阶段:详细勘察。
Stage:detailedinvestigationstage
岩土工程勘察等级:根据《岩土工程勘察规范》GB50021-2001第3.1.1条~第3.1.4条,该工程重要性等级为三级,场地等级为二级,地基等级为二级,勘察等级为乙级。
Degree:DegreeofimportancefortheproposedprojectisClass3,andthatofcomplexityofthesiteandthefoundationisalsoClass2,accordingtotheCodeforGeotechnicalEngineeringInvestigationGB50021-2001(3.1.1~3.1.4),wedefinethisgeotechnicalengineeringinvestigationasClassB.
勘察任务及要求:
Taskandrequirementoftheinvestigation
1.查明拟建场地范围内岩土层的类型、深度、分布、工程特性,提出详细的岩土工程资料,为设计和施工提供所需的各种参数;
Identifycomposition,distributionrules,depthandengineering
geologicfeaturesofthefoundationsoilswithintheexplorationdepthattheproposedsite.Toprovidedetailcomprehensivephysical&
mechanicalparametersofeachstratum,designparametersofgroundbearingcapacityandpilefoundationbearingcapacity,andgeotechnicalparametersrequiredforfoundationsettlementcalculation.
2.查明地下水的埋藏条件、水位、变化幅度,判定地下水(土)对建筑材料的腐蚀性;提供场地标准冻结深度;
2.Identifyembedmentstatus,type,watertableandevolutionofundergroundwater,andevaluatethecorrosivenessdegreeofsitesoilandgroundwatertobuildingmaterials.Providethestandardfrozendepthof
thesoilatproposedsite.
3.确定场地土的类型及建筑场地类别、判定饱和粉土及砂土的液化可能性;
3.Specifysiteclassificationandzoningofthesiteintosections.Toidentifydistributionstatusofsaturatedsiltysoilandsandysoilandassessitsliquefactionpotentialandliquefactiondegree.
4.对地基的稳定性、均匀性、承载力问题进行评价;
4.Giveabriefevaluationaboutthestability,uniformityandbearingcapacityofthesoilfoundation.
5.查明场地内不良地质作用类型的成因、分布范围、发展趋势及危害程度,并提出评价与整治方案及建议;
5.Identifythecause,distributionrange,developmenttrendandextendofdamageofdefectivegeologicalenvironmentonsite.Alsoprovidetheevaluationandrelatedtreatmentscheme.
6.选择合理的基础类型及埋深;如使用桩基,选择最佳桩端持力层,提供桩基参数。
6.Recommendandselectsuitabletypeanddepthofthefoundation.Selectthebestloadbearingstratumandprovidethepileparametersifpilefoundationbeadoptedontheproject.
布孔原则及实施:根据甲方提供的建筑总平面图,依据《岩土工程勘察规范》GB50021-2001第4.1.11条~第4.1.20条之规定,本次勘察在建筑物边线、角点共布设36个勘探点,其中生产车间荷载较小,按天然地基考虑,勘探孔深度10.0m~15.0m;高货架部位荷载较大,按复合地基考虑,勘探孔深度20.0m~25.0m。具体布孔
详见“勘探点平面布置图”,各孔深度等见“勘探点一览表”。
Workscopeandrules:
Basingonthearchitecturallayoutfromtheclient,andaccordingtotheCodeforGeotechnicalEngineeringInvestigation
GB50021-2001(4.1.11~4.1.20),wearrangedtotally36holesonsite.ThedepthofboringholeinmostareaofPHis10~15m,belongtonaturalsoilfoundationwithnormalload.
Butforthehighrackstoragearea,thedepthofboringholeincreasedto20~25m,belongtocompositesoilfoundationwithrelativelylargeload.DetailinformationPLSsee“boringholelayout”and“boringholesheet”.
勘探方法:采用钻探取样、标准贯入试验和静力触探相结合勘探方法
Investigationmethods:Adoptsacombinationofboreholesampling,in-situtest(SPTandCPT).
1、钻探:采用DPP100-3E型汽车钻机,回转式螺旋钻头钻进,地下水位以上干钻,回次进尺不大于1m。采用活塞式取土器,静压法采取土样,取样前需清孔,孔底残留浮土厚度不得大于取土器上端废土段长度,遇砂层可采用套管护壁或岩芯管钻进,水位以下可采用泥浆护壁,开孔直径150mm,终孔直径不小于110mm。
1.Boring:Usingdrillingtruck(DPP100-3E),Rotaryscrewdrill,drillingatcirculationbreakabovetheundergroundlevel,footage<1m.SamplethesoilonStaticpressuremethodbyPistontypesoilsampler.Theholesneedtobecleaned,andthelengthofremainedcappingmassontheholebottomshouldlessthantheredundantsoillengthonthetopof
thesampler.
Casinghole-boringmethodcanbeadoptedtodrillthroughthesandlayer,andslurrywallcanbeusedunderthegroundwater.Thediameterofthebeginningholeis150mm,andthefinaldiametershouldbenolessthan110mm.
2、静力触探:采用单桥探头,微机自动处理,要求每0.1m采集一组数据。
2.CPT:Conepenetrationtestisdonebysingle-bridgesensor.Thedataiscollectedandrecordedautomaticallywiththeperiodofeveryper0.1mbymicroprocessor.
3、标准贯入试验:锤重 …… 此处隐藏:12332字,全部文档内容请下载后查看。喜欢就下载吧 ……