500kv承平线路施工连续多档跨越方法小结

500KV承平线路施工连续多档跨越方法小结1工程概况本工程为承德西平安城500KV输电线路工程，线路起于河北省遵化市平安城500KV变电站，止于河北省滦平县承德西500KV变电站。线路大致自南向北走线，途经河北省遵化市、兴隆县、营子区、承德县、滦平县，路径全长131599KM。工程全线分为五个标段，本段为第标段，线路位于河北省承德市兴隆县和营子区境内。本标段起于J31（N150），止于J48N218，线路长26356KM，线路沿线全部为高山大岭。建设铁塔基础53基，其中耐张塔24基（其中换位塔1基），直线塔29基。本标段导线采用LGJ630/45钢芯铝绞线，地线采用GJ100镀锌钢绞线，另一根为OPGW2光缆。架线施工中要跨越110KV线路5条、35KV线路6条、京承铁路1次、G112国G179591次（全部G19610中G2528一G6930线区段N204N218），G15999跨越G11352G9869G1039要分部G5785况G3926G991G29G1039要跨越G5785况G15932A2A3A4A0A1A4A0A1A5A6A7A10A11A12A13A8A15A9A17A14A10A19A12A20A16A10A19A12A4A0A18A21A22A25A23A24A26A29A27A31A32A28A30A33A36A32A28A30A34A38A35A37A39A40A31A43A43A28A33A34A31A41A45A42A44A46A49A31A31A28A50A47A52A45A44A46A48A54A51A53A55A44A46A38A37A39A40A31A43A41A28A33A31A32A28A30A34A36A32A28A30A56A38A37A39A40A31A43A34A28A43A40A30A40A43A34A57A58A51A59A60A33A63A42A61A62A51A48A38A64A39A40A31A43A41A28A33A28A32A28A30A41A36A32A28A30A65A38A37A39A40A33A28A56A43A30A56A43A43A19A68A66A67A69A30A56A70A36A30A40A70A73A66A71A69A28A30A70A36A31A65A70A43A34A57A58A60A46A31A63A42A61A62A51A48A38A64A39A40A31A33A31A28A33A43A32A28A30A65A36A32A28A31A30A38A64A39A40A31A33A31A28A33A31A56A34A19A75A66A31A31A30A57A58A60A46A42A61A62A51A48A38A64A39A40A31A43A65A28A33A33A32A28A31A31A36A32A28A31A28A38A37A39A40A31A33A28A28A43A43A34A30A19A68A72A71A69A42A61A62A51A48A38A37A39A40A28A33A28A28A33A34A32A28A31A28A36A32A28A31A43A38A37A39A40A28A33A28A28A33A43A65A56A19A68A72A67A69A30A65A70A36A30A41A70A73A68A71A69A28A30A70A36A31A65A70A42A61A62A51A48A38A64A39A40A31A34A31A28A33A40A32A28A31A33A36A32A28A31A34A38A64A39A40A31A43A41A28A33A43A56A40A19A73A74A71A69A31A33A70A36A31A43A70A73A74A67A69A31A33A70A36A31A43A70A42A61A62A51A48A38A64A39A40A28A33A40A28A33A56A32A28A31A33A36A32A28A31A34A38A64A39A40A31A43A41A28A33A43A56A40A19A73A68A71A69A31A34A70A36A31A56A70A42A61A62A51A48A78A76A77A38A64A39A40A28A33A40A28A332施工G1946G3803跨越架G6657设G2081G5224G17839G15904施工G1946G3803，G2265G6336G4557跨越G10301G11352G8991G18339，G1114G16311跨越架导电G1319G4557G5114电导线G11352G17329G12175G1209G2462G4565G20042G13489G13548G7460G7021G11352G10317G5627G12573。21线路跨越G8991G18339G6980G18339跨越G14551G3272A79A80A81A82A79A80A83A84G7741G2507A85A86A87A88A79A80A89A90A91A92A93A94A95A96A97A98A99A94A100A101A102A103A102A104A105A106N204N205A45A42A44A46A49A31A31A28A50A47A107A107A108A79A109A110A111A107A112A113A112A105A114A105A112A110A105N205N20G26A115A107A116A117A43A34A57A58A51A59A60A33A63A30A30A43A70A36A30A30A34A70A113A107A108A94A109A110A111A107A107A111A105A114A105A112A118A119A120A120A105N208N209A112A112A111A116A117A68A66A67A69A73A66A71A69A30A56A70A36A30A40A70A28A30A70A36A31A65A70A120A111A108A94A109A110A111A118A107A111A105A114A105A110A121A119A107A112A105N209N210A112A112A111A116A117A75A66A31A31A30A57A58A60A46A107A111A108A94A109A110A111A118A113A111A105A114A105N211N212A112A112A111A116A117A68A72A71A69A112A107A108A94A109A110A112A112A112A121A107A105A114A105A115A107A119A115A115A105N212N213A112A112A111A116A117A68A72A67A69A73A68A71A69A30A65A70A36A30A41A70A28A30A70A36A31A65A70A110A107A108A94A109A110A112A110A112A113A111A105A114A105A115A107A119A115A113A105N214N215A112A112A111A116A117A73A74A71A69A73A74A67A69A112A121A122A123A112A115A122A114A111A108A94A109A110A112A121A112A121A111A105A114A105A110A115A119A118A118A105N214N215A112A112A111A116A117A73A68A71A69A112A107A122A123A112A120A122A114A111A108A94A109A110A112A107A114A111A105A114A105A110A118A119A110A120A10522跨越架导电G1319G4557G5114电导线G11352G17329G12175G5224G9397G17287G991G15932要G8726G726G20045G11458A124A79A80A81A82A125A126A85A86A104A115A107A116A117A106A124A79A80A81A82A125A126A85A86A104A112A112A111A116A117A106G8712平G17329G12175（G2559G20130G1571G1552）A127A128A129A130A131A128A132A130G3414直G17329G12175（G7389地线）A133A128A129A130A133A128A129A130G6817G1328G1166G2604G994G5114电G1319G11352G17329G12175A134A128A129A130A134A128A129A130跨越架G994G15999跨越G10301G11352G7380G4579安全G17329G12175（M）G15999跨越G10301G2529G12228跨越架部位铁路G1856路G994架G19766G8712平G17329G12175G14279路中G5527G72630G14279路G17805G72606G994G4565G20042G7450G3414直G17329G12175G14279G17724G20042G72665G14279路G19766G72655跨越架G11352G4497G5242G5224G9397G17287G19668G1457G6264G11352架G12366线G3324G20130G1571G2530（VG3210M/G4579G7114）跨越G3800G1120G17805G2520G738915MG11352G1457G6264G14551G3272。23G13513G13450G13489G13548G13511、G17854G4624G10607G13511G6228G7427G10317G5627G16280G7696G13513G13450G13511G17854G4624G10607G13511G1828G15810G15816G15818G15810G15812G15816G15818G11784G7041G2159（KN）1061G26641256892513G26211296G2345位G18337G18339KG74/M005400G2650215028000G26G26011301G26G26024G263跨越G7053G770831跨越G4565G13605施工G7053G7708G13520G17860G4565G13605G1039承G2159G13511G2499G2045用G17854G4624G10607G13511和钢G1009G13511G17842G6521G1328为G1039承G2159G13511，G1306跨越电G2159线G990G7053G5529G20047为G17854G4624G10607G13511。本工程G19036G4557架线工程跨越G11352铁路、国G17959、110KV电G2159线路G246235KV电G2159线路，采用G2045用G7044建铁塔塔G17535G13477扎钢架停电或不停电G4565G13605架线期间不停电G11352施工G7053法。G3324跨越G4565G13605施工G2081G5224注意G1209G991几G9869G7261）现场G6930样，G8991G18339G15999跨越线路G11352高G5242（地线），G4497G5242（G17805导线之间），G994跨越线路G11352交叉角G1209G2462G994跨越线路交叉G9869高G5242变化。2）G1209跨越G4565G13605G13511弧G3414G17329G15999跨越线路G17805导线G11352G12366中G3414直G17329G12175G9397G1728722G15932中要G8726为依据,确定跨越G13605G13511G11352高G5242。32不G6657设跨越架，仅采用跨越横梁G2499G3324两跨越塔G11352挂线G9869G991G7053G2045用塔G17535吊一50050033M28MG11352横梁（根据跨越档横担G7380大G4497G5242定，两G17805G19668大于横担G7380大G4497G5242G252015M），实施整档跨越G4565G13605。G6930线区段跨越架G6657设类型G2462G7053G7708G3324N204N218区段G6930线G7114N204N205跨越京承铁路、G112国G17959，采用整档G4565G13605，G17854G4624G10607G13511位于N205G4579G2507侧，N205G4579G2507侧G17854G4624G10607G13511锚固G3324钢架G990G994邻档（N205N20G26）G4565G13605承托G13511G2528一位置相互平衡，因N204地形较高，N204大G2507侧钢G1009G13511G2499直G6521锚固G3324N204塔腿G990。G3324N204N218区段G6930线G7114N205N20G26跨越35KV电G2159线4条，采用整档G4565G13605，G17854G4624G10607G13511位于N205大G2507侧，N205大G2507侧G17854G4624G10607G13511锚固G3324钢架G990G994邻档（N204N205）G4565G13605承托G13511G2528一位置相互平衡，因N20G26地形较高，N20G26G4579G2507侧钢G1009G13511G2499直G6521锚固G3324N20G26塔腿G990。G3324N204N218区段G6930线G7114N208N209跨越110KV煤建一回、营建G1120回，N208大G2507侧钢G1009G13511直G6521锚固G3324N208塔腿G990，G17854G4624G10607G13511位于N209G4579G2507侧，N209G4579G2507侧G17854G4624G10607锚固G3324钢架G990G994邻档（N209N210）G4565G13605承托G13511G2528一位置相互平衡G3324N204N218区段G6930线G7114N209N210跨越110KVG7044建线路，G17854G4624G10607G13511位于N209大G2507侧，N209大G2507侧G17854G4624G10607锚固G3324钢架G990G994邻档（N208N209）G4565G13605承托G13511G2528一位置相互平衡，N210大G2507侧为钢G1009G13511G994G17854G4624G10607G13511G17842G6521并通过滑车落地锚固。G3324N204N218区段G6930线G7114N211N212跨越110KV煤兴一回，G17854G4624G10607G13511位于N211大G2507侧，N212大G2507侧G17854G4624G10607锚固G3324钢架G990G994邻档（N212N213）G4565G13605承托G13511G2528一位置相互平衡，N211G4579G2507侧为钢G1009G13511G994G17854G4624G10607G13511G17842G6521并通过滑车落地锚固。G3324N204N218区段G6930线G7114N212N213跨越110K煤兴一回、营煤G1120回，G17854G4624G10607G13511位于N212大G2507侧，N212大G2507侧G17854G4624G10607锚固G3324钢架G990G994邻档（N211N212）G4565G13605承托G13511G2528一位置相互平衡，N213G4579G2507侧为钢G1009G13511G994G17854G4624G10607G13511G17842G6521并通过滑车落地锚固。G3324N204N218区段G6930线G7114N214N215跨越110KV营桂双回、营煤G1120回,G17854G4624G10607G13511位于N215G4579G2507侧，N215大G2507侧G17854G4624G10607G994钢G1009G13511G17842G6521并通过滑车落地锚固，N214大G2507侧为钢G1009G13511G994G17854G4624G10607G13511G17842G6521并通过滑车落地锚固。4跨越横梁G11352G6657设G994拆除41G6657设跨越横梁1）G4557于G12175塔G17535较近G11352跨越，采用从横担G990吊一根长33MSJC64塔型和28M（SJC61、SJC62、SZC61、SZC62塔型）G11352500500G7041G19766G11352抱G7450做跨越架头，实施整档G4565G13605（见G991图）。A135A136A137A138A139A140A136A137A138A141A140A136A137A138A142A140A136A137A138A143A144A145A146A147A148A143A144A135A149A143A144A135A149A143A150A150A151A151A152A143A150A150A151A151A152A153A153A151A154A155A143A144A156A157A137A138A158A159A160A161A162A163A164A165A166A161A154A155A167A168A169A136A154A155A170A171A1612）G4565G13605滑车外侧挂G3324G17329G12175中横担G17805线外25米G3800，内侧挂G3324G990横担G17805线内25米G3800，左右两端每侧G4565G13605G4497G5242为6米。3）由于地线挂G9869G994G991导线挂G9869之间G7389一定G11352G8712平G17329G12175，因此跨越架G11352布置要G1209地线支架G994G991导线挂G9869中G5527线为基G1946,使地线和G991导线均G3324G13489G13548G13605G1457G6264G14551G3272内。42塔G17535钢架G11352固定G7261转角塔G3324G991横担5米6米G3800G13477扎500500G7041G19766钢架，直线塔G3324G991横担8米9米G3800G8712平G13477扎500500G7041G19766钢架，钢架G17842G6521用M1635螺栓，G17842G6521孔G5224全部用螺栓填G9397并紧固，钢架G11352G8712平位置G5224G994G17329五轮G6930线滑车底部G3414G17329为1518米。2用G158153MG16280G7696钢G1009G13511将钢架G994塔G17535固定，两外侧固定G3324铁塔G1039G7460G990，中间部分间G17329G5224均匀。G15815钢G1009G13511G13477扎G7114G5224收紧，尾端用5TU型环G4565死。3用G15815钢G1009套G3324左、右两侧四G3800钢架挂G4565G13605滑车位置G994塔G17535G1039G7460G17842G6521，并用5TU型环G4565死，G17842G6521G7114用5T葫芦或5T双钩收紧，使G15815钢G1009套G3800紧固状态。4）用G15815钢G1009G13511G3324四个挂G4565G13605滑车G3800G994塔G17535G2530侧G1039G7460G1328反向G8712平拉线，拉线制G1328G7114用6T葫芦或5T双钩收紧钢G1009G13511，尾端用5TU型环G4565死。5）为防止钢架G3324G4565G13605G2530向内弯曲，G3324左、右两侧G4565G13605滑车G3800用G15815钢G1009G13511G4557铁塔顺线路G4557地打反向拉线，拉线应对地夹角应小于45度。6）将G4565G136055T滑车悬挂G3324钢架G990，挂滑车G15815钢G1009套必须与钢架四根主材缠绕连接，使钢架G3324G4565G13605G2530四根G1039G7460均匀受G2159；因G4565G13605G17854G4624G10607G13511G4565G13605G2530通过悬挂滑车G3324G2530侧G1039G7460固定，5T滑车的闭口部分应在靠塔身侧，开口部分不受G17854G4624G10607G13511侧向G2159并用铁G1009G4565死。G26）钢架G13477扎固定完G2530，G3324晴好天气G991，G2045用G2172G2159G1266G4649G6930G1584G17854G4624G10607G13511，将G17854G4624G10607G13511两端分G2047G6255G14279跨越塔两端，G9994G2530G2045用G1584G17854G4624G10607G13511G5353G9205G1588G17854G4624G10607G13511,G2045用G1588G17854G4624G10607G13511G5353G9205G15818G17854G4624G10607G13511。8）G15818G17854G4624G10607G13511G3324G5353G9205完G6116G2530，通过钢架G9905T滑车G24625T塔G17535G14148滑车G3324塔G17535G1039G7460G3800锚固，锚固G3800G19668用G7053G7420、G21647布G2265G3455并G3822G4630G13556G13481锚孔。滑车G8145口部分用G14026布G2265扎或套G990G14026G12661G1209防长G7114间G19675G2172使G17854G4624G10607G13511受G6451。跨越封网现场实景跨越110KV电G2159线路防G6264G13007G13491整G1319G12447G1319布置图A172A173A174A175A176A177A177A178A179A180A181A182A183A184A185A186A187A188A189A190A191A192A193A194A195A196A197A198A199A200A201A202A192A193A203A204A198A205A206A201A207A208A209A200A201A202A192A193A203A204A198A210A211A212A213A200A201A202A192A193A203A204A198A214A215A216A217A218A219A220A221A222A208A209A223A221A224A225A201A207A198A226A227A228A229A226A227A228A229A215A216A197A198A230A231A222A223A221A224A225A201A207A198A226A227A228A229A232A233A234A222A235A236A237A238A238A239A240A241A222A242A235A236A243A204A222A242A244A245A246A247A248A239A239A240A241A222A242A249A245A246A247A248A239A239A240A241A222A242A249A245A250A233A201A207A251A252A208A209A197A253A198A254A241A255A199A843跨越横梁G11352拆除跨越横梁G11352拆除G2375G6657设横梁G11352G17882过程。5、跨越G5785况G16757G12651G4565G13605G13511G13046G11352承G17745G2159见G991G15932G726G4565G13605承托G13511G18214G17854G4624G10607G13511，G2345位G18337G183390150KG74/M15N/M，G11784G7041G215918T180000NG4565G13605承托G13511G18216G17854G4624G10607G13511，G2345位G18337G1833901G26G26KG74/M1G26G26N/M，G11784G7041G2159211T211000NG4565G13605承托G13511G18218G17854G4624G10607G13511，G2345位G18337G18339024G263KG74/M24G263N/M，G11784G7041G2159296T296000NG4565G13605承托G13511G18215钢G1009G13511，G2345位G18337G183391G266KG74/M1G266N/M，G11784G7041G2159138T138000NN205N20G26G4565G13605受G2159G5785况,G4565G13605承G2159G13511G17885用G18218210MG17854G4624G10607G13511G994G18215480M钢G1009G13511G17842G6521。工况跨越G3800G4557电G2159线G3414G17329承G17745G13046张G2159安全G13007G6980G3803注G2033安G160255M43G26KG746G26G26钢G1009G13511长G5242G2559落地锚线长G5242G4565G13605G253048MG265G26KG74391邻档G1119G6937G17317线28M5642KG7452N208N209G4565G13605受G2159G5785况，G4565G13605承G2159G13511G17885用G18216160MG17854G4624G10607G13511G994G18215G2600M钢G1009G13511G17842G6521。工况跨越G3800G4557电G2159线G3414G17329承G17745G13046张G2159安全G13007G6980G3803注G2033安G160255M406KG74519钢G1009G13511长G5242G2559落地锚线长G5242G4565G13605G253048MG2680KG74412邻档G1119G6937G17317线42M34G262KG7461N209N210G4565G13605受G2159G5785况，G4565G13605承G2159G13511G17885用G18214120MG17854G4624G10607G13511G994G18215480M钢G1009G13511G17842G6521。工况跨越G3800G4557电G2159线G3414G17329承G17745G13046张G2159安全G13007G6980G3803注G2033安G160255M406KG74519钢G1009G13511长G5242G2559落地锚线长G5242G4565G13605G253048MG2680KG74412邻档G1119G6937G17317线42M34G262KG7461N211N212G4565G13605受G2159G5785况，G4565G13605承G2159G13511G17885用G182181G260MG17854G4624G10607G13511G994G18215190M钢G1009G13511G17842G6521。工况跨越G3800G4557电G2159线G3414G17329承G17745G13046张G2159安全G13007G6980G3803注G2033安G160255M854KG74346钢G1009G13511长G5242G2559落地锚线长G5242G4565G13605G25304G26M1168KG74253邻档G1119G6937G17317线11M5G2654KG7451N212N213G4565G13605受G2159G5785况，G4565G13605承G2159G13511G17885用G18218200MG17854G4624G10607G13511G994G18215350M钢G1009G13511G17842G6521。工况跨越G3800G4557电G2159线G3414G17329承G17745G13046张G2159安全G13007G6980G3803注G2033安G160255M698KG74424钢G1009G13511长G5242G2559落地锚线长G5242G4565G13605G25304G26M1044KG74283邻档G1119G6937G17317线14M5G2642KG7452N214N215G4565G13605受G2159G5785况，G4565G13605承G2159G13511G17885用G18218100MG17854G4624G10607G13511G994G18215490M钢G1009G13511G17842G6521。工况跨越G3800G4557电G2159线G3414G17329承G17745G13046张G2159安全G13007G6980G3803注G2033安G160255M484KG74612钢G1009G13511长G5242G2559落地锚线长G5242G4565G13605G253048M116G26KG74254邻档G1119G6937G17317线36M46G265KG7463G16840G7138G726G256安G162801211第12条G11352G16280定G257G6164G7389跨越架架G1319G11352G5390G5242，G5224G14033G3324G2469G10995G7041线或G17317线G7114承受G1926G1999G14667G17745。G4557于本G1375G256邻档G1119G6937G17317线G257，G6365本档80G8导线G2399G3324承G17745G13605G990G17839G15904G20576G12651。6安全注意G1119G2004561G2454G2164施工G11352G1166G2604G5529G20047经过G6228G7427交底，G10099G5725施工G7053法、注意G1119G20045、工G3132G1867使用G5627G14033，G1209G1427G8503确G6817G1328。62施工G8991G18339G1017G7696G6365要G8726G17839G15904，G1209确G1457G4565G13605G13511和G5114电G1319之间G11352安全G17329G12175，G7828G7609拉线和G5114电G1319之间G2462架G1319和G5114电G1319间G11352G17329G12175G5529G20047G9397G1728732条中G15932G7696要G8726。63G4565G13605工G1328G5224由G1391电部G19388G6521好G7138G7186G6521地G2530，并G3324G6521G2052G1391电部G19388G11352停电G1328G1006G12092G7053G2499G17839G15904。64架G990G1328G1006均G5224打好安全G5114，G4649G6930和收紧G13511G13046G7114G5224双G6175交G19181G6581G13511，G1017防G13511G13046G14085G6175。65根据跨越架高G5242、导线G4557跨越架G17329G12175，G7481确定G6930线滑车G11352挂法。G5415导线G4557跨越架G17329G12175G9397G17287G3324G6930线G16280定G11352张G2159，G2499直G6521挂G3324直线G13489G13548子G991G19766，G5415不G14033G9397G17287G990G17860要G8726G7114，G5224G2045用钢G13511套挂滑车，G1209G6564高G6930线G7114导线G4557跨越架G11352G17329G12175要G8726。66导线G4649G6930G7114，G5114电跨越G3800G5224设安全G11429G6264，并G18209G4557G16774G7438G13864G13488。G6930线G2462紧线G7114，架G990不G5483G7389G1166。6G26本次跨越110KV线路，均采用不停电G6657设跨越架，G5114电跨越架线，不停电拆除,G7092G16782G1321G12193G7053G5347施工,均G5224G2474G5483G17828G15904G2345位G11352G2339G2173。G3324G5114电跨越期间，G15999跨越线路G18337G2524G19404G5224G17876G1998。68G13489G13548G13511G13046G3324工程使用G2081，G5224做G1017G7696G11352G7828G7609，并G4557G2520G12193G16280G7696G11352G13511G13046G2474样G17839G15904拉G2159G16809G20576，G2528G7114G4469G7609其耐G2399G16809G20576G6265G2590，G5114电G1328G1006使用G11352G13489G13548G13511G13046G5224G12538G2524GG371303591G11352要G8726。跨越架G990G11352G1231一G9869G5390G5242G5224G9397G17287G3414直G2399G21591000KG74，并G3324此G9869G990G2528G7114G1328用G8712平拉G21591000KG74G14667G17745G11352要G8726。G12538G2524要G8726G2530G7053G2499使用。69用于G5114电G1328G1006G11352G13489G13548G13511G13046，G5224G1328为G999用工G1867，不G5483G6398G1328G4439用，每次使用完G8617，G5224G16825G7206G5190或G9900G5190，G1306G9900G5190G9213G5242G5224G1314于60G101。G7206G5190G2530G16025G1849G999用G12677子或G3621G7021G15967中G1457G12661。导、地线G5114电跨越G7114，跨越档内两侧G5224G16025设G1457G6264G6521地。610施工G17139G17143G1166G3324工G1328G2081，G5224向全G1319施工G1166G2604交G5465现场安全G6526施，G4471G16847工G1328G12092，G5114电线路、停电线路、G15999跨越G7450G2507和其G4439注意G1119G20045。G3324施工G13479束G2081，工G1328G17139G17143G1166G2462G11429G6264G1166G2604均不G5483G12175开岗位，G3926G5529G20047G12175开者，G5224指定G14033胜G1231工G1328G11352G1166G2604G6521替，并交G5465清楚。611G20130G2159五级经G990，雨、雪G2462雷电、浓雾，G13489G13548G13511受潮G7114，不G5483G5114电G6657（拆）跨越架。612110KV电气间隔3米。613本G6526施未G6564G2462部分G5224执G15904电G2159建设安全G16280程。614G5114电跨越G6930线G7114，牵G5353G13046G1867G3324原G7389安全G13007G69803基础G990G6564高20G8。牵G5353工G1867，G3324额定G14667G17745G990增G216415倍安全G13007G6980。615G6930线过程中锚线采用G256双G1457险G257。G5114电跨越G3800附件安G16025G7114，导线要G2164钢G1009套G1457险。G26、总G13479G261G17839G15904G6228G7427分析，确定跨越G7053G7708G2528一G6930线段内G17842续跨越国G17959、铁路G2462G3822条G18337要电G2159