中英文地勘(地质勘查)报告

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63.5kg，落距76cm，预打15cm，贯入深度30cm，采用自动脱钩、自动落锤，清孔后换用标准贯入器并量得深度尺寸。先击入15cm不计击数,再记录后30cm中的每10cm的锤击数.

3.InSPT,a63.5kgheavyhammerisused,andthedroppingdistanceis76cm.Atthebeginning,15cmdistanceisprepared.Thehammerisautomaticallyunhookedandfallingfreely.Noblowcountisloggedforthefirst15cmpenetration.Blowcountsarerecordedinsubsequent10cmintervalinthe30cm.

勘探依据：

1、《岩土工程勘察规范》GB50021-2001(2009年版)

CodeforGeotechnicalEngineeringInvestigationGB50021-2001Edition2009NationalstandardsofPRC

2、《建筑地基基础设计规范》GB50007-2011

CodeforBuildingFoundationDesignGB50007-2011NationalstandardsofPRC

3、《建筑抗震设计规范》GB50011-2010

CodeforSeismicDesignofBuildingsGB50011-2010NationalstandardsofPRC

4、《中国地震动参数区划图》GB18306-2001

SeismicgroundmotionparameterzonationmapofChinaGB18306-2001

5、《静力触探技术标准》CECS04:88

TechnicalStandardforConePenetrationCECS04:88Industrystandard

6、《建筑工程地质勘探与取样技术规程》JGJ／T87-2012

StandardforSoilinvestigationandsampling,JGJ/T87-2012Industrystandard

7、《土工试验方法标准》GB/T50123-1999

StandardforSoilTestMethodGB/T50123-1999NationalstandardsofPRC

8、《建筑地基处理技术规范》JGJ79-2002

Standardforfoundationtreatmenttechnology,JGJ79-2002

9、《建筑工程抗震设防分类标准》GB50223-2008

StandardforClassificationofSeismicProtectionofBuildingConstructionsGB50223-2008

10、《工业建筑防腐蚀设计规范》GB50046-2008

Codeforanticorrosionondesignofindustrialconstruction,GB50046-2008

11、《河北省建筑地基承载力技术规程》DB13(J)/T48-2005TechnicalcodeforbuildingfoundationbearingcapacityinhebeiprovinceDB13(J)/T48-2005

12、《房屋建筑和市政基础设施工程勘察文件编制深度规定》DepthsurveyanddocumentationregulationsofHousingconstructionandmunicipalinfrastructureprojects

外业时间：2013年4月3日进场，当日完成全部外业工作。Fieldoperation:AlltheoperationworkfinishedOnthewholedayof2013/4/3.

标高依据：本次勘察采用北京54坐标系和相对高程，以甲方提供的场地红线西北角A1（X=4377948.110，Y=480122.536）与西南角A2（X=4377740.922，Y=480165.755）作为两个控制点，测放各孔位的固定坐标，以场地西南角爱民东道路中心一点为假定高程0.00m，据此实测各孔口相对标高。

Elevationsystem:AdopttheBeijing54coordinatesystemandrelativeelevation.Alltheexplorationpointsoftheboringholearesetoutbasinguponthetwocontrolpointswhichprovidedbytheclient.TheyareA1,onthenorth-westcorner(X=4377948.110，Y=480122.536),A2onthesouth-westcorner（X=4377740.922，Y=480165.755）.Therelativeelevationsystemisadoptedfortheheightsurvey.OnebasepointinthemiddleofEastAiminRoad(South-westtothesite)istakenasbenchmarkforheightsurvey,anditselevationisassumedas0.00mm.

场地工程地质条件

EngineeringGeologicalConditionalofthesite

一、地形、地貌

场地属河流冲积平原区，地势较平坦，地貌单一。孔口相对标高为-0.33～0.52m，高差0.85m。

FeaturesoftheGeomorphologyandLandform

Thesiteislocatedinriverflatarea.Itsterrainisrelativelyflatanditslandformissingletype.Elevationofnaturalgroundsurfacewhereallexploratoryholesareconcernedrangesfrom-0.33mto0.52m(relativeelevation,thesamebelow),altitudedifferenceis0.85m.

二、地层岩性及工程地质特性

Featuresoffoundationsoils

勘探深度范围内揭露天然地层属第四系全新统（Q4）河流冲积地层，土质以粘性土、粉土和粉细砂为主，表层为耕植土。根据土质特征和力学性质，由上至下共划分为8个地层单元和2个亚层。其工程特性分层描述如下：

TheinvestigationshowedthatthesurfacelayeroftheplannedconstructionsiteisclassifiedasQ4intheriverflatarea,whichiscomposedofclay,siltandclaysand,topsoilisarablesoil.Withintheinvestigationdepth,thesoillayersofplannedconstructionsitecouldbedividedintoeightengineeringgeologiclayers,twosub-layers,whicharedescribedindetailsasfollows:

层耕植土：以黄色粉土为主，夹粉质粘土，土质不均，层厚0.5～

1.5m；

Layer1Topsoil:thislayermainlyconsistsofyellowishsilt,mixedupthinlayersofsiltyclay,unevenpropertieswithathicknessrangingfrom0.5~1.5m.2层粉土：黄色，稍湿～湿，中密，摇振反应迅速，断面无光泽，干强度和韧性低，夹粉质粘土薄层。承载力特征值fak=110kPa；Layer2Silt:mixedthinlayersofsiltyclay.yellow,slightwet-wet,middledense,swingreactionisrapid,noglossincutting,lowindrystrengthandlowintoughness,Theloadfeaturefak=110kpa.

③1层粘土：黄色～黄灰色，软塑，高压缩性，无摇振反应，断面有光泽，干强度和韧性高，夹粉土薄层。承载力特征值fak=90kPa；Layer3.1clay:mixedthinlayersofsilt.Yellow-yellowgray,soft

plasticity,highcompressibility,noswingreaction,cuttingglossily,highindrystrengthandhighintoughness,Theloadfeaturefak=90kpa.

③层粉质粘土：黄灰色～灰色，可塑，中～高压缩性，无摇振反应，断面稍有光泽，干强度和韧性中等，夹粉土薄层，夹礓石。承载力特征值fak=110kPa；

Layer3siltyclay:mixedthinlayersofsiltandgingernut.Yellowgray-gray,plasticity,middle-highcompressibility,noswingreaction,cuttingratherglossily,middleindrystrengthandmiddleintoughness,Theloadfeaturefak=110kpa.

④层粉细砂：黄灰色～灰色，饱和，中密～密实，成份以石英、长石为主，含云母，夹粉土薄层。承载力特征值fak=160kPa；

Layer4finesiltysand:mixedthinlayersofsilt.Yellowgray-gray,saturation,middlecompressibility-dense,mainlyconsistsofquartzandfeldspar,containingmica,Theloadfeaturefak=160kpa.

⑤层粉质粘土：灰色～黄色，可塑，中压缩性，无摇振反应，断面稍有光泽，干强度和韧性中等，夹粉土薄层。承载力特征值fak=120kPa。

Layer5siltyclay:mixedthinlayersofsilt.gray-yellow,plasticity,middlecompressibility,noswingreaction,cuttingratherglossily,middleindrystrengthandmiddleintoughness,Theloadfeaturefak=120kpa.

⑥层粉土夹粉砂：黄色，湿，密实，摇振反应迅速，断面无光泽，干强度和韧性低，夹粉砂层，夹粉质粘土薄层。承载力特征值fak=150kPa；

Layer6silt+siltysand:mixedthinlayersofsiltyclay.yellow,wet,dense,swingreactionisrapid,noglossincutting,lowindrystrengthandmiddleintoughness,Theloadfeaturefak=150kpa.

⑦层粉质粘土：黄色，可塑，中压缩性，无摇振反应，断面稍有光泽，干强度和韧性中等，夹粉土薄层。承载力特征值fak=130kPa。Layer7siltyclay:mixedthinlayersofsilt.yellow,plasticity,middlecompressibility,noswingreaction,cuttingratherglossily,middleindrystrengthandmiddleintoughness,Theloadfeaturefak=130kpa.

⑦1层粉土：黄色，湿，密实，摇振反应迅速，断面无光泽，干强度和韧性低，见锈斑，承载力特征值fak=140kPa；

Layer7.1silt:yellow,wet,dense,swingreactionisrapid,noglossincutting,lowindrystrengthandmiddleintoughness,rustspot,Theloadfeaturefak=140kpa.

⑧层粉砂夹粉土：黄色，饱和，中密，成份以石英、长石为主，含云母，夹粉土层，夹粉质粘土薄层。承载力特征值fak=180kPa；Layer8siltysand+silty:mixedthinlayersofsiltyclay.Yellow,saturation,middlecompressibility,mainlyconsistsofquartzandfeldspar,containingmica,Theloadfeaturefak=180kpa.

土层的具体空间分布形态详见“工程地质剖面图”，各土层厚度及层底标高见“地层统计表”。

Thedetaileddistributionofsoillayersrefer“thesectiondrawing”,andthethicknessandbottomelevationofeverylayerrefer“soillayerindexsheet”

三、地基土的物理力学指标统计分析

AnalysisandAssessmentofFoundationSoils

此次勘察采集了大量土样，依据《土工试验方法标准》GB/T50123-1999规范进行室内试验，根据土工试验结果，各层土的物理力学指标，经可靠性和适用性分析进行数理统计，提供平均值、标准差等参数，见“物理力学指标统计表”。根据三轴剪切试验及直剪试验结果，并结合工程经验给出基底下，一倍基础宽度范围内土层φk、Ck标准值的建议值，见下表：

AccordingtotheStandardforSoilTestMethodGB/T50123-1999,alotofthesoilsamplesfromtheproposedsitearetestedinlaboratory.Analysisandstatisticsofphysical&mechanicalpropertiesofthefoundationsoilsareobtained,includingarithmeticmean,standarddeviationandotherparametersrefer‘Physicalandmechanicalindex

sheet’.φk、Ckunderthefoundationbaseattherangeoffoundationaresuggesteduponthetriaxialsheartestresultsandconstructionexperience,whichvaluesareshownasfollowing:

不固结不排水三轴剪切试验φk、Ck建议值

unconsolidated-undrainedtriaxialsheartestφk、Cksuggestedvalue土层编号土层名称

Layer

粉土

②层silt

粉质粘土

③层siltyclay

粘土

③1层clay

粉细砂

④层Finesiltysand

粉质粘土

⑤层siltyclay12.730.39.725.7（30.0）（0）（30.0）（0）9.531.69.029.111.529.710.626.8φm(°)17.6Cm(kPa)12.2φk(°)（13.2）Ck(kPa)（9.2）注：括号内数值为经验数值Note:thedatainbracketisexperiencedata

此次勘察压缩试验，按建筑物的荷载情况及土层的不同深度进行不同压力段的压缩试验，并绘制e～p曲线，计算每层土的自重应力至自重应力加附加应力段的压缩模量，其ES值见下表：

Thesoilcompressiontestaccordingto

地基土分段压缩模量成果表ES（MPa）

SubsectionmodulusofcompressibilityoffoundationsoilEslist

土层编号

②层土层名称Layer粉土

siltEs1-211.6其它压力段othersubsectionsEs1-3=12.77

③层

③1层

④层粉质粘土siltyclay粘土clay粉细砂

Finesiltysand4.113.62Es1-3=4.65Es1-3=4.32（18.0）

⑤层

⑥层粉质粘土siltyclay粉土夹粉砂

Silt+siltysand4.9014.6Es1-3=6.00Es2-3=7.72Es2-4=8.35Es2-3=20.02Es2-4=20.39

⑦层

⑦1层

⑧层粉质粘土Siltyclay粉土silty粉砂夹粉土

Siltysand+silt5.4910.6Es2-3=9.47Es2-3=16.44Es2-4=10.31Es2-4=17.73（20.0）

注：括号内数值为经验数值Note:thedatainbracketisexperiencedatafak建议值依据静力触探曲线，用标准贯入试验和钻探取样试验资料并结合邻近工程经验综合确定。

fakvalueareobtainedbasingontheCPTcurve,thetestresultsoftheSPTandboringholesample,andtheconstructionexperienceofadjacentprojects.

各土层fak一览表(kPa)

fakListofsoillayers

地层编号

②地层名称fak建议值(kPa)110粉土silt

粉质粘土

③siltyclay

粘土

clay

粉细砂110③1④90160

Finesiltysand

粉质粘土

⑤siltyclay

粉土夹粉砂

Silt+siltysand

粉质粘土

Siltyclay

粉土

silty

粉砂夹粉土

Siltysand+silt120⑥150⑦130⑦1140⑧180

四、地下水概况

场区浅层地下水属第四系松散层孔隙潜水，勘察期间实测稳定水位埋深5.4m～6.3m,高程-6.21m～-4.97m，水位受季节、降水等因素影响会有所升降。该场地自然水位年变幅约2.0m，近期年最高水位埋深按3.0m考虑。

ShallowgroundwateroftheplannedconstructionsiteistheporephreaticwateroftheQuaternaryperiod.Thereadingofstaticwaterlevelis5.4m-6.3m,thewaterelevationisEL-6.21m—4.97m.Phreaticwaterlevelvarieswithfactorssuchasseasonandclimatechange.Theannualvariationrangeofnaturalgroundwaterlevelisabout2.0m.Maxdepthtogroundwaterlevelcantake3.0mrecently.

本次勘察在场地内采集一组水样和一组土样，并结合场地东侧梅花生物科技集团已有《水、土质分析报告》，进行腐蚀性分析，依据《岩土工程勘察规范》GB50021-2001（2009年修订条款）第12.2.1

条和第12.2.4条判定，环境类型为Ⅱ类，地下水对混凝土结构有微腐蚀性，在干湿交替环境下，对钢筋混凝土结构中的钢筋有弱腐蚀性；地基土对混凝土结构有微腐蚀性，对钢筋混凝土结构中的钢筋有微腐蚀性。

水、土对建筑材料腐蚀的防护，应符合国家标准《工业建筑防腐蚀设计规范》GB50046-2008的规定。

Wetestagroupsampleofwaterandsoilwhicharecollectedattheplannedsiteandrefer‘water,soilanalysisreport’ofPlumBiotechnicalGroup,easterntothesitetoanalyzethecorrosionstatus.AccordingtoCodeforGeotechnicalEngineeringInvestigationGB50021-2001Edition(2009revised),No.12.2.1and12.2.4,wecanconcludethat,the

environmenttypeisII.Thegroundwaterofthesiteismildlycorrosivetoconcretestructure,groundwaterismildlycorrosivetorebarinRCstructureunderlong-termsubmersion,andweaklycorrosivetorebarinRCstructureunderalternatingdryandwetconditions.

Anti-corrosionmeasureoftheconstructionmaterialshouldmeetrequirementsoftheCodeforanticorrosionondesignofindustrialconstruction,GB50046-2008.

第三章场地土地震效应

Seismiceffectsofthesitefoundation

一、抗震设防烈度及液化判别

依据《建筑抗震设计规范》（GB50011-2010）和《中国地震动参数区划图》（GB18306-2001）标定，拟建场地抗震设防烈度为8

度，设计基本地震加速度值为0.20g，设计地震分组为第二组。

AccordingtoCodeforBuildingSeismicDesign(GB50011-2010),andSeismicgroundmotionparameterzonationmapofChinaGB18306-2001,seismicfortificationintensityofthesiteis8degree;thedesignvalueofbasicearthquakeaccelerationis0.20g.ThedesignearthquakegroupingisGroup2.

依据《建筑抗震设计规范》(GB50011-2010)第4.3.3条～第4.3.5条，②层粉土位于水位以上，初判为不液化；用标准贯入试验法对场地内的④层粉细砂和⑥层粉土夹粉砂进行液化判别，结论为不液化，该场地无地震液化土层，详见“地基土地震液化标贯法判别表”。

AccordingtoCodeforBuildingSeismicDesign(GB50011-2010)no.4.3.3-4.3.5,②layersiltlayerisabovethegroundwaterlevel,whichispreliminarilyidentifiedasnon-liquefiablestratum.④layerfinesiltysandand⑥layersilt+siltysandareconcludedasnon-liquefiablestratumbasedontheresultsofSPT,CPT.Hence,theplannedsiteisconcludedasnon-liquefiablestratum.Detailedinformationrefto‘liquefactionassessmentsheetbySPT’.

二、场地类别

Thetypeofthesite

依据《建筑抗震设计规范》(GB50011-2010)第4.1.3条～第4.1.5条，本场地揭露天然地层(20m以内)土的类型均属中软土。估计并计算土层等效剪切波速(Vse)为170.0m/s。查阅该场地区域地质资料可知：场地覆盖层厚度大于50m，该场地类别为Ⅲ类，特征周期为0.45s。

AccordingtoCodeforBuildingSeismicDesign(GB50011-2001)No.4.1.3-4.1.5,thetypeofnaturalsoilstratum(within20m)isclassifiedasmediumsoftsoil.Equivalentshearwavevelocityiscalculatedforsoil