青海双向四车道高速路基土方填筑施工技术交底 8页

技术交底书工程项目路基填筑工程部位路基土方填筑施工单位工程名称茶格公路工程CGSG-5五标段工程数量41km进度要求6个月接受班组及有关人员1、工程概况青海省茶卡至格尔木公路工程起点位于青海省海西蒙古族自治州乌兰县茶卡镇，终点位于格尔木市。CGSG-5合同段里程：K2434+000-K2475+000，路线长41km。按高速公路标准设计，双向四车道，设计时速100公里。主要工程数量见表1：表1主要工程数量工程项目单位数量备注路基工程挖方m3填方m3本桩利用m318275.1远运利用m3.5借方m3.5弃方m3.7浆砌片石防护m3混凝土防护m324990.7混凝土排水m336420.22、路基施工1、路基场地清理路基开工前，首先按图纸所示对各类现有建筑物、障碍物、设施的位置及地面附着物进行现场核对和补充调查，发现与图纸不符，及时报告监理工程师核查。将公路用地范围内及其附近影响施工必须拆除迁移的建筑物、障碍物和设施，按图纸要求或监理工程师的指示进行拆除；同时对路基范围内的所有树木、树根等进行砍伐；对路基范围内的垃圾和原地面以下20cm内的植被予以清除。以上所有场地的清理深度和范围严格按照图纸、规范或监理工程师的要求办理。所有清理出的杂物和废料弃于事先选定的弃土场内，并按规范要求进行处理；可用填料堆放在路基用地范围以外不妨碍施工的非耕地上，以作备用。dslopetofacilitateemptying.(1)duringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlydiggingbaseelevationistodesign,persistenceofelevationabovealayerofsoilisnotdug,tocopyafterpingdugoutbyhand.(3)mechanicalconstructiondigintotheEarth,diggingmanualatanytime,andtrolleystotransportEarthmachinerytodigtheplace,soastousethemachineryofcherry-picking.5,trimming...(1)soilexcavationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermsordiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon.1,theengineeringaccordingtothecharacteristicsofspecies,densityofthefillquantityrequirements,constructionsiteconditionsofreasonablefillsoilmoisturecontrol,virtualshopandcompactionparameters,suchasnumber.2,undergroundandabove-groundpipelinesshouldbefoundoutbeforeconstructionobstacles,requirementsshallinaccordancewiththeconstructionplan,theconstructionofabovegroundandundergroundobstacleclearanceintheregionanddealt\n清理和拆除完毕，将遗留下的坑穴用监理工程师同意的材料回填，然后对场地进行必要的修整、铺平和压实，达规定要求后，报请监理工程师检查，合格后即进行下一工序施工。2、基底处理首先划分作业区段，划分作业区段的原则是保证施工互不干扰，防止跨区段作业，以200-300米为一作业区段。其次清除基底表层植被、挖出树根，作好临时排水设施，根据不同的地质条件进行基底处理。路基基底为耕地或土质散时，在填筑前进行压实，压实度（重型击实）不小于90%。（1）、低填浅挖路基(路基填高小于路面和路床总厚度150cm)路段：A、当地表以下为粉土及粉砂时，清除表层草皮土及种植土，并对清表底面粉土及粉砂层采用振动压路机进行冲击碾压，再分层碾压回填碎砾石土，压实度大于96％后再填筑路基。B、当地表以下为碎砾石士等粗粒土时，有植物分布的清除表层植物根茎，并对清表底面进行振动碾压处理，回填碎砾石，无植物分布对原地表进行碾压处理，压实度大于96％后再填筑路基。(2)、路基填高>150cm路段：A、当路基填筑高度大于150cm路段，当地面横坡缓于1:5时，清除地表草皮及种植土后，直接填筑路堤。B、当地面横坡为l：5～l：2．5时，原地面挖台阶，台阶宽度为2．0m，高1米，再填筑路堤。(3)、挖方路基地基处理沿线挖方段落地基土质大部分以碎砾石土为主，局部路段为粉土及粉细砂。为保证路基地基强度及压实度要求，采取了以下处理措施：①开挖至路床顶面时，若路床上层为粉土层及粉细砂，将路床80cm的粉土及粉砂清除后，碾压后回填粗粒土。②若路床土层为芥砾石等粗粒土时，将路床超挖80cm，进行压实回填。3、选取试验路段根据现场的实际情况，选取两段约300米基底处理已合格的新建路段，分别做砂砾填筑和填土路基试验段。dslopetofacilitateemptying.(1)duringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlydiggingbaseelevationistodesign,persistenceofelevationabovealayerofsoilisnotdug,tocopyafterpingdugoutbyhand.(3)mechanicalconstructiondigintotheEarth,diggingmanualatanytime,andtrolleystotransportEarthmachinerytodigtheplace,soastousethemachineryofcherry-picking.5,trimming...(1)soilexcavationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermsordiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon.1,theengineeringaccordingtothecharacteristicsofspecies,densityofthefillquantityrequirements,constructionsiteconditionsofreasonablefillsoilmoisturecontrol,virtualshopandcompactionparameters,suchasnumber.2,undergroundandabove-groundpipelinesshouldbefoundoutbeforeconstructionobstacles,requirementsshallinaccordancewiththeconstructionplan,theconstructionofabovegroundandundergroundobstacleclearanceintheregionanddealt\n在开工前会同监理工程师现场做压实试验；试验段施工按计划投入机械设备进行操作，并测出达到规定压实度的松铺厚度（汽车卸土堆的间距）、洒水的车数、振动碾压遍数、碾压速度和施工时的控制依据。试验段按填方（包括回填）填料的不同分别进行，试验结束时，试验段若达到要求的检验标准，则作为路基的一部分；否则，予以挖除，重新进行试验。4、路基挖方本合同段的挖方主要为风积沙路段的开挖。2013年4月1日路基五队开始K2454+000-K2475+000段路基施工，首先开始路基挖方，就近利用填筑路基；挖方弃土的同时场外借土填筑该段路基，此路段选取200米作为路基地表处理（风积沙）和路基填筑的试验段。开挖中土方数量按常规的施工方法即可顺利完成；(1)、土方开挖施工方法在短而浅的地段，用全断面开挖，路堑较深时采用横向分台阶法进行开挖。对于旁山路堑采用纵向台阶法施工，对于平缓横坡地段较长较深的路堑采用纵向分段分层法开挖，每层先挖出一通道，然后开挖两侧，使各层有独立的出土道路和临时排水设施。土方开挖采用分层开挖，自上而下逐层进行，预留保护层，人工控制挂线刷坡。土方挖运采用履带式挖掘机挖装、重载自卸车运输，短距离的土方用推土机施工。开挖前做好堑顶截排水系统，保证边坡稳定。5、路基填方路基的填筑从装、运、填、平、碾组织大型机械化作业，采用挖掘机、装载机配合自卸汽车运输。填土严格按照四区段（填、平、碾、检）、八流程（施工准备、测量放样、分层填筑、摊铺平整、碾压夯实、检测验证、路面整形、边坡修整）组织施工。dslopetofacilitateemptying.(1)duringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlydiggingbaseelevationistodesign,persistenceofelevationabovealayerofsoilisnotdug,tocopyafterpingdugoutbyhand.(3)mechanicalconstructiondigintotheEarth,diggingmanualatanytime,andtrolleystotransportEarthmachinerytodigtheplace,soastousethemachineryofcherry-picking.5,trimming...(1)soilexcavationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermsordiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon.1,theengineeringaccordingtothecharacteristicsofspecies,densityofthefillquantityrequirements,constructionsiteconditionsofreasonablefillsoilmoisturecontrol,virtualshopandcompactionparameters,suchasnumber.2,undergroundandabove-groundpipelinesshouldbefoundoutbeforeconstructionobstacles,requirementsshallinaccordancewiththeconstructionplan,theconstructionofabovegroundandundergroundobstacleclearanceintheregionanddealt\n采用分层填筑法施工，即按照横断面水平层次逐层向上填筑。在填筑过程中根据选定的最佳含水量，对填土进行洒水或翻晒晾干以调整填土的实际含水量。平整填筑面并自路中心向两侧做2%-3%的横坡排水。碾压时先从路缘向路中心，再从路中心向路缘顺次碾压，每次碾压重叠15-20cm，碾压时遍数以将该层填土碾压至要求的密实度为准。若填方分几个作业阶段施工，且两段交接处不在同一时间填筑，则先填地段按1：1坡度分层作台阶；若两个地段同时填筑，则接头处分层相互交叠填筑，搭接长度不小于2米。填筑过程中，每层完成后形成2%-3%的横坡以便排水良好。（1）、路基填筑基底清理完后进行原地面压实，一般地段原地面压实度不得小于93%，零填挖路床顶面以下0～800mm范围内的压实度不得小于96%。基底土质达不到压实标准，要采取换填或改良土等措施，并压实至规定的压实度。路基填方采用水平分层填筑法施工，挖、装、运、摊、平、压、检测一条龙作业。施工采用推土机摊铺、平地机整平、重型振动压路机压。A、摊铺：摊铺采用推土机初平，平地机精平，使平面无显著的局部凹凸。平整时先两侧后中间，中间稍高，形成向两侧的横向排水坡；初平时用水平仪检测控制每层厚度。摊铺时从路基最低处开始分层平行摊铺，松铺层的厚度按路堤试验段确定的数据进行。填土路堤施工时最大松铺厚度不大于300mm，最小为100mm。路床底面以下400mm范围内，填料粒径应小于150mm，路床填料粒径应小于100mm所有缝隙填以小石块或石屑。每层填筑每侧应超出路基设计宽度300mm，以利于压实机械作业，保证完工后的路堤边缘有足够的压实度。B、碾压：上料摊铺平整后即开始碾压。机械碾压依照试验段确定的压实参数，控制压实的遍数和速度；碾压时按先两侧后中间，先慢后快，先静压后振压的施工操作程序进行；碾压轮迹重叠不少于40cm，各区段纵向搭接长度不少于2m，做到无漏压，无死角，保证压实均匀。填层接近路基设计标高时，加强测量工作，以保证完工后的路基顶面宽度、高程、平整度符合设计及规范要求。dslopetofacilitateemptying.(1)duringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlydiggingbaseelevationistodesign,persistenceofelevationabovealayerofsoilisnotdug,tocopyafterpingdugoutbyhand.(3)mechanicalconstructiondigintotheEarth,diggingmanualatanytime,andtrolleystotransportEarthmachinerytodigtheplace,soastousethemachineryofcherry-picking.5,trimming...(1)soilexcavationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermsordiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon.1,theengineeringaccordingtothecharacteristicsofspecies,densityofthefillquantityrequirements,constructionsiteconditionsofreasonablefillsoilmoisturecontrol,virtualshopandcompactionparameters,suchasnumber.2,undergroundandabove-groundpipelinesshouldbefoundoutbeforeconstructionobstacles,requirementsshallinaccordancewiththeconstructionplan,theconstructionofabovegroundandundergroundobstacleclearanceintheregionanddealt\n《路基填筑施工工艺框图》6、路基检测路基填筑每层铺筑碾压完毕，即进行密实度检测，合格后进行下一层的施工。填土路基用灌砂法进行检测，每200米取4处进行压实度试验。dslopetofacilitateemptying.(1)duringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlydiggingbaseelevationistodesign,persistenceofelevationabovealayerofsoilisnotdug,tocopyafterpingdugoutbyhand.(3)mechanicalconstructiondigintotheEarth,diggingmanualatanytime,andtrolleystotransportEarthmachinerytodigtheplace,soastousethemachineryofcherry-picking.5,trimming...(1)soilexcavationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermsordiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon.1,theengineeringaccordingtothecharacteristicsofspecies,densityofthefillquantityrequirements,constructionsiteconditionsofreasonablefillsoilmoisturecontrol,virtualshopandcompactionparameters,suchasnumber.2,undergroundandabove-groundpipelinesshouldbefoundoutbeforeconstructionobstacles,requirementsshallinaccordancewiththeconstructionplan,theconstructionofabovegroundandundergroundobstacleclearanceintheregionanddealt\n路基压实度标准填挖类别路面底面以下深度(cm)压实度(％)填方路基上路床0－30≥96下路床30－80≥96上路堤80－150≥94下路堤150以下≥93零填及路堑0-30≥96零填及路堑30-80≥967、路基整修(1)按设计图纸要求，恢复各种边桩，检查路基中线的位置、宽度、纵坡、横坡、边坡及相应的标高等。根据检查结果编制整修计划报监理工程师批准后施工。(2)土质路基采用人工或机械刮土或补土，配合机械碾压整修成型。当填土不足或边坡受雨水冲刷时，将原边坡挖成台阶，分层填补。(3)边沟的整修挂线进行，对各种水沟的纵坡均采用仪器检测，整修到符合设计要求及规范的要求为止。3、土方施工注意事项土方调配严格按“就近”原则进行，就近取土，就近运输。集中力量分阶段突击重点路基土方施工。路基在雨季填筑时，施工前做好地表排水，施工时保持路基顶面呈拱状态，防止积水，路基成型后，及时整理路肩并安排坡面防护，保持路基整体稳定。表1-4-1-5土方路基质量检验评定标准实测项目项次检查项目规定值或允许偏差高速公路一级公路1△压实度(%)零填及挖方(m)0～0.30-0～0.80≥96填方(m)0～0.80≥960.80～１.50≥94＞1.50≥93dslopetofacilitateemptying.(1)duringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlydiggingbaseelevationistodesign,persistenceofelevationabovealayerofsoilisnotdug,tocopyafterpingdugoutbyhand.(3)mechanicalconstructiondigintotheEarth,diggingmanualatanytime,andtrolleystotransportEarthmachinerytodigtheplace,soastousethemachineryofcherry-picking.5,trimming...(1)soilexcavationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermsordiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon.1,theengineeringaccordingtothecharacteristicsofspecies,densityofthefillquantityrequirements,constructionsiteconditionsofreasonablefillsoilmoisturecontrol,virtualshopandcompactionparameters,suchasnumber.2,undergroundandabove-groundpipelinesshouldbefoundoutbeforeconstructionobstacles,requirementsshallinaccordancewiththeconstructionplan,theconstructionofabovegroundandundergroundobstacleclearanceintheregionanddealt\n2△弯沉（0.01mm）不大于设计要求值3纵断高程（mm）+10，-154中线偏位（mm）505宽度（mm）符合设计要求6平整度（mm）157横坡（%）±0.38边坡符合设计要求4、桥涵处的台背回填桥涵处的填料，要严格按设计图纸及监理工程师指示。桥涵处的填土，采用分层回填压实，并严格控制水量，分层松铺厚度不大于20cm。桥台背后填土与锥坡同时进行，涵洞缺口填土在两侧对称均匀分层回填压实。各种填土的压实尽量采用小型的手扶振运夯以达到规定的压实度标准。桥涵填土的范围：桥梁：L+1.5H,H为路基填土高度减去路面厚度涵洞、通道：6+1.5H,H为涵洞、通道的涵身高度1.4.3.6、回填采用碎石土材料从台背两侧同时对称分层回填，回填层厚控制在20cm以内，采用小型振动器夯实。5、雨季路基施工1、雨季施工地段，作好防水、防洪、排水工作，同时尽可能不在雨季安排填方压实。2、严禁在中雨或连绵雨天进行非渗水土填筑施工。3、雨季施工的每一压实层面均作成2-3%的横坡排水。路堤边坡随时保持平整、不留凹坑,收工前，将铺填的松土压实完毕。4、雨季填筑路堤，根据使用机具的性能和数量，合理组织几个工作面轮流作业，紧凑衔，快速施工,不进行全面铺开施工。5、雨后路基面经晾干处理后再进行一步工序的施工。6、质量控制措施1、测量及填料控制dslopetofacilitateemptying.(1)duringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlydiggingbaseelevationistodesign,persistenceofelevationabovealayerofsoilisnotdug,tocopyafterpingdugoutbyhand.(3)mechanicalconstructiondigintotheEarth,diggingmanualatanytime,andtrolleystotransportEarthmachinerytodigtheplace,soastousethemachineryofcherry-picking.5,trimming...(1)soilexcavationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermsordiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon.1,theengineeringaccordingtothecharacteristicsofspecies,densityofthefillquantityrequirements,constructionsiteconditionsofreasonablefillsoilmoisturecontrol,virtualshopandcompactionparameters,suchasnumber.2,undergroundandabove-groundpipelinesshouldbefoundoutbeforeconstructionobstacles,requirementsshallinaccordancewiththeconstructionplan,theconstructionofabovegroundandundergroundobstacleclearanceintheregionanddealt\n每隔20m为一个断面测量确定中线、边线位置，并撒出白灰线，每个断面中线、边线打钢钎。在钢钎上标示红布条，以确定出虚铺层高位置，以便于现场整平操作。计算每层填料方量，确定方格网边长，计算每个方格网填料方量。避免现场二次倒运。摊铺时应从一端向另一端铺设。人员组织队长技术负责人技术员安全员质量员材料员试验员交底人班组签名dslopetofacilitateemptying.(1)duringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlydiggingbaseelevationistodesign,persistenceofelevationabovealayerofsoilisnotdug,tocopyafterpingdugoutbyhand.(3)mechanicalconstructiondigintotheEarth,diggingmanualatanytime,andtrolleystotransportEarthmachinerytodigtheplace,soastousethemachineryofcherry-picking.5,trimming...(1)soilexcavationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermsordiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon.1,theengineeringaccordingtothecharacteristicsofspecies,densityofthefillquantityrequirements,constructionsiteconditionsofreasonablefillsoilmoisturecontrol,virtualshopandcompactionparameters,suchasnumber.2,undergroundandabove-groundpipelinesshouldbefoundoutbeforeconstructionobstacles,requirementsshallinaccordancewiththeconstructionplan,theconstructionofabovegroundandundergroundobstacleclearanceintheregionanddealt