K35+000~K43+000段路基软基处理塑排板及土工格栅施工方案1编制依据1.1招标标文件本方案根据杭浦高速公路嘉兴段工程项目招标文件及中铁九局集团对本项目的投标文件及补遗进行编制。1.2施工图纸本方案根据杭州至上海浦东高速公路嘉兴段两阶段施工图设计进行编制。1.3现行规范及验标本方案根据现行《公路软土地基路堤设计施工技术规范》TTJ017-96)、《公路路基施工技术规范》(TTJ033-95)、《公路工程质量检验评定标准》(JTGF80/1-2004)进行编制。1.4现场实际情况本方案根据现场实际情况进行编制;现场地表附着物清理已完成,已作好三通一平,具备开工条件。2编制说明2.1工程地质概况2.1.1工程概述本合同段为杭浦高速公路(嘉兴段)第7合同段,全长7.991公里,起点桩号K35+000,终点桩号K43+000。主要工程包括海宁服务区、海宁互通连接线(全长6公里)、海宁互通立交。2.1.2地理位置本合同段即第七合同,起点桩号为K35+000,与第六合同段相衔接,终点桩号为K43+000,与第八合同段相连,路线全长为7.991Km(其中设断链K40+591.253=K40+600,短8.747m),行政区域属海宁市丁桥镇。沿线地势平坦,河网密布,湖池星点,村落相望,景观别具一格,农业以水稻种植为主,盛产桑蚕,养殖鱼虾,是江南一处鱼米之乡。沿线路基填筑材料奇缺,需外地远运。2.1.3地质概况项目位置地处杭嘉湖地区,杭嘉湖地区第四系地层分布广,层位齐全,厚度大,成因类型多,岩相变化复杂。成因类型主要有冲积、冲洪积、洪积、坡洪积等。由于受地理位置、古地形、新构造运动、海面多次升降、流水侵蚀的影响,沉积了一套巨厚(最厚300余米)的第四纪松散堆积物,其下为隐伏的新生代第三纪的半胶结状红层(红色泥质粉砂岩、砂岩、砂砾岩、凝灰岩等)。根据本次勘察揭露,本区主要为第四系中更新统(Q13)、上更新统(Q23)、全新统(Q4)和第三纪基岩(N)地层。杭嘉湖地区第四系地层分布广,层位齐全,厚度大,成因类型多,岩相变化复杂。概括地可分为丘陵山区冲积型及滨海平原混合型两大类型。其中丘陵山区冲积型地层分布在杭州~德清~吴兴一线以西的富春江,东西苕溪上游。成因类型有冲积、冲洪积、洪积、坡洪积等。本路段通过的平原区属上更新统,全新统曾发生过三次海浸,为浅海相、滨海相、河口相、湖沼相沉积。由于古气候、古地理环境的变化,各期沉积物的颜色、状态、颗粒组成等呈规律性变化。中下更新统下部为杂色,中上部为棕褐色。上更新统下部为灰黄~灰绿色,中上部为灰~灰黄色。全新统中下部为灰~灰黑色,上部为灰黄色。每一沉积阶段的沉积物颗粒随沉积环境的变化呈明显的韵律,砂与粘性土层交错出现。砂层随深度的增加,颗粒由细变粗。测区绝大多数地表为第四纪地层覆盖。根据区域资料,该区下部基岩构造特征,在地质历史上经历过多种构造复合。线位附近的隐伏断裂主要有北东向华夏系的临安~马金断裂带的东北延伸端,萧山~球川断裂北东隐伏延伸端,以及东西向构造带的双林~嘉兴,吴兴~嘉善断裂。其中东北向萧山~球川断裂、东西向双林~嘉兴断裂、吴兴~嘉善断裂在晚近期有所活动。2.2路基软基处理塑排板、土工格栅及砂砾主要工程数量塑排板塑排板格栅格栅格栅宽度层数K35+000~K35+126.5126.53.8一般306141817107745211385K35+126.5~K35+166.5403.5箱通9501296220324423520K35+166.5~K35+287.6121.14.4一般303941046771647211383K35+287.6~K35+302.6155桥头2492K35+302.6~K35+340.6385.2桥头1493K35+652.6~K35+690.6384.2桥头1462K35+690.6~K35+705.6153.9桥头2452K35+705.6~K35+900194.43.2一般4529531313548243216718K35+900~K37+200海宁服务区K37+200~K37+245454.9一般11631560273004824320K37+245~K37+260155.1桥头2493K37+260~K37+298385桥头1492K37+314~K37+352384.9桥头1482K37+352~K37+367154.9桥头2482K37+367~K37+525.5158.54.3一般395453589376546214582K37+525.5~K37+561.5363.5桥头8551152201604423168K37+588.5~K37+624.5363.2桥头8381120196004323096K37+624.5~K37+865240.54一般5892791815440146222126K37+865~K37+880154.8桥头2482K37+880~K37+918384.8桥头1482K37+934~K37+972384.1桥头1462K37+972~K37+987154.2桥头2462K37+987~K38+2602733.4一般6442745814543144224024K38+260~K38+296362.4桥头7951088212164111476K38+332~K38+368.0362.9桥头8221120218404211512K38+368~K38+487.5119.52.7一般26943168649444215019K38+487.5~K38+502.5154桥头2462K38+502.5~K38+540.5384.1桥头1462K39+192.5~K39+230.5383.6桥头1442K39+230.5~K39+245.5153.4桥头2442K39+245.5~K39+293.047.52.7一般10711280326404211995K39+293.0~K39+323.0302.5涵洞667918234094111230K39+323.0~K39+353.5302.6一般672800204004111230K39+353.5~K39+488.5135.52.6一般30353584913924115556K39+488.5~K39+525.436.91.9桥头7871056258723911439K39+551.5~K39+588.236.72.5桥头8161122274894111505K39+587.5~K39+707.0119.53.6一般285638528667044210516K39+707.0~K39+722.0154.7桥头2482K39+722.0~K39+760.0384.8桥头1482K39+782.0~K39+820.0384.8桥头1482K39+820.0~K39+835.0154.8桥头2482K39+835.0~K40+047.02123.9一般5162699317832245219080K40+047.0~K40+084.537.53桥头8621190279654311613K40+101~K40+137.736.72.5桥头8161122263674111505K40+137.7~K40+401.02643.4一般6230719416905944223232K40+401.0~K40+461.0604.1箱通214792378582614638280K40+461.0~K40+707.02463.9一般5990810319852445222140K40+670.0~K40+710.0402.8箱通9081224275404211680K40+710.0~K41+022.03113.7一般75031028623143545228080K41+022.0~K41+037.0154.6桥头2472K41+031.0~K41+050.0134.7桥头1482K41+050.0~K42+800.0海宁互通K42+800.0~K42+820203.9桥头1487800116004532700A型面积(m2)根数(根)长度(m)起讫桩号长度(m)平均填高(m)垫层数量(m3)路段类型塑排板塑排板格栅格栅格栅宽度层数K39+820.0~K39+835.0154.8桥头2482K39+835.0~K40+047.02123.9一般51626993178321.545219080K40+047.0~K40+084.537.53桥头8621190279654311613K40+101~K40+137.736.72.5桥头8161122263674111505K40+137.7~K40+401.02643.4一般6230719416905944223232K40+401.0~K40+461.0604.1箱通214792378582614638280K40+461.0~K40+707.02463.9一般59908103198523.545222140K40+670.0~K40+710.0402.8箱通9081224275404211680K40+710.0~K41+022.03113.7一般75031028623143545228080K41+022.0~K41+037.0154.6桥头2472K41+031.0~K41+050.0134.7桥头1482K41+050.0~K42+800.0海宁互通K42+800.0~K42+820203.9桥头1487800116004532700K42+820~K42+850303.9涵洞73099914485.54534050K42+850.0~K43+000.01502.6一般33603968694404116150主线合计3863.8201.90784651017052185833264310K35+900~K36+1162163.3一般5875680216664951222032K36+116~K36+156403.5箱通12101656356045724560K36+156~K36+4903344.3一般91681247425571751234068K36+490~K36+500104.8箱通2482K36+500~K36+540404.7箱通1482K36+540~K36+550104.6箱通2472K36+550~K36+826.5276.53.7一般6649910216383647225991K36+826.5~K36+862.5362.6桥头8241120218404211512K36+887.5~K36+925.5383.5桥头11111530267755524180K36+925.5~K37+018.5932.5一般24872520441005014650K37+018.5~K37+048.5302.4涵洞73899917482.54611380K37+048.5~K37+200151.53.7一般3643499587412.545213635K0+060~K0+130(A)702.2一般598594106921511050K0+130~K0+181.2(A)51.23.4一般529602108361821843K0+065~K0+110(B)452.3一般3913856930151675K0+110~K0+180(B)703.3一般714812146161822520K0+050~K0+140(C)901.9一般729700122501411260K0+045~K0+141.1(D)96.11.9一般778740129501411345服务区合计1697.358.603544445031887690120701起讫桩号长度(m)平均填高(m)垫层数量(m3)路段类型根数(根)长度(m)A型面积(m2)塑排板塑排板格栅格栅格栅宽度层数互通区互通主线K41+050~K41+075254.6桥头1482K41+097~K41+135384