某公路SU-沥青上面层监理总结

改建工程标SUP-13上面层试铺段总结报告段改建工程监理组二〇〇九年四月二十八日沥青上面层首件总监办总结一、概况：改建工程标，由工程有限公司标项目经理部承建，沥青上面层设计为厚4.0cm的SUP-13型沥青砼。为了贯彻执行公路工程首件制度，在上级领导指导下，施工单位一起于4月22日上午10点28分开始到下午2点08分在主线进了沥青上面层K818+950-K819+400右幅，长400m的试验段的试铺，总监办管理人员全过程检测检查，现评述如下：二、试铺过程：（一）拌和场：1、原材料：试验段开工前，所用矿粉、沥青及1～4＃料均经过施工单位自检、监理组和总监办抽查。表1密度试验结果汇总表（目标）矿料表观相对密度毛体积相对密度吸水率（%）1#料2.8822.8040.962#料2.8892.7991.113#料2.9132.7761.74#料2.6982.6340.9矿粉2.718//沥青1.028表2密度试验结果汇总表（生产）矿料表观相对密度毛体积相对密度吸水率（%）1#料2.8722.8150.732#料2.8702.7761.193#料2.8742.7601.434#料2.7852.6981.15矿粉2.722//沥青1.025表3集料料堆的筛分结果（目标）筛孔集料筛率1#（27）78.510.40.80.80.60.60.60.60.62#（30）100.099.04.60.80.80.80.80.80.83#（13）100.099.576.05.22.01.21.01.00.84#（26）100.0100.0100.081.053.432.019.413.09.5矿粉（4）100.010010010010010097.390.581.6表4集料料堆的筛分结果（生产）筛孔集料筛率1#（26）80.210.41.20.80.80.80.80.80.82#（32）100.096.85.41.21.00.80.80.80.83#（10）100.099.968.34.01.81.41.31.20.94#（28.5）100.0100.0100.087.4.063.332.4145.84.9矿粉（3.5）100.010010010010010097.690.882.12、拌和设备：拌和采用一套英国ACP-4000型间歇式沥青混合料拌和设备，严格检查了拌和设备的运行情况和计量的精确度。3、拌和：严格按照确定的配合比生产，控制拌和时间，确保出料温度，指导意见要求混合料正常出场温度165-175度，超过190度废弃，杜绝花白料、结块及离析等现象。4、出料及运输：根据运距投入50T左右的运料车15辆以满足拌和机出料和摊铺需要，接料时按要求分前、后、中进行三次装料，并加盖双层油布保温设施。运输前汽车车厢清理干净，为防止沥青粘在车厢上，派专人在车厢内壁涂一层隔离液。（二）摊铺现场：1、测量放线：根据中桩测放桩位，上面层采用超声波平衡梁来控制标高、厚度和横坡，有专门人员检查厚度等指标。2、沥青下面层清查处理：采取了人工清扫再用森林灭火器吹尘，污染地方特别处理，直到表面洁净，然后喷洒粘层（经现场查看运料车未发生起皮），并路缘石涂刷粘层。3、设备组合：混合料的摊铺采用两台ABG423型摊铺机梯队摊铺，纵缝采用热接缝，两台摊铺机的摊铺宽度为5.5m和5.75m，中间熨平板重叠20cm。两机间距5-10m，纵缝采用热接缝.4、摊铺：施工时按拟定摊铺速度行走，10点28分开始摊铺，2点08分结束摊铺，实际用了2小时40分钟。两台摊铺机的摊铺宽度分别为5.5m和5.75m，中间熨平板重叠10-20cm。5、温度检测：采用数字显示插入式热电偶温度计检测沥青混合料各阶段温度，包括到场、初压、终压、开放交通，插入深度均大于150mm，试铺段实际到场温度168～178度，最低168度，摊铺温度162～165度，最低162度；初压温度为152～158度，最低152度；碾压终了表面温度94～98度，最低为94度，均能满足指导意见要求。6、碾压共设置两套碾压方案，初压、复压、终压均为紧跟套压，衔接紧密。方案一：（K819+400-K819+200）碾压碾压方式压路机型号遍数速度(Km/h))振级振动重叠宽度(cm)初压两台压路机各跟随随一台摊铺机机碾压CC522双钢轮轮振动23弱振第一遍前静后振；；第二遍前后后振15-20CC522双钢轮轮振动23弱振15-20复压两台胶轮各随一台台摊铺机碾压压XP-301胶轮轮34静压------1/2轮宽XP-301胶轮轮34静压------1/2轮宽终压全断面碾压CC522双钢轮轮振动25静压------1/3轮宽方案二:(K819+200-818+950)碾压碾压方式压路机型号遍数速度(Km/h))振级振动重叠宽度(cm)初压两台压路机各跟随随一台摊铺机机碾压CC522双钢轮轮振动23弱振第一遍前静后振；；第二遍前后后振15-20CC522双钢轮轮振动23弱振15-20复压两台胶轮各随一台台摊铺机碾压压；另一台摊摊铺机全幅碾碾压XP-301胶轮轮34静压------1/2轮宽XP-301胶轮轮34静压------1/2轮宽XP-301胶轮轮14静压------1/2轮宽终压全断面碾压CC522双钢轮轮振动25静压------1/3轮宽碾压时，混合料基本无推移起浪现象，碾压有序，碾压过程中对胶轮压路机安排了专人用拖把抹涂色拉油，防止粘轮。（三）试验成品检测：上面层试验段全部检测项目于3月25日全部结束，对其压实度、高程、厚度、横坡、宽度、渗水系数、平整度等项目进行了检测，结果如下：1、碾压方案一（K819+400-K819+200右幅）施工段落共取芯样6个点，马氏压实度极大值为101.1，极小值为98.1，平均值99.2。理论相对密度压实度极大值为96.0，极小值为93.1，平均值94.2。桩号横距层次密度(g/cm33)标准马氏密度(gg/cm3)旋转压实密度(gg/cm3)最大理论密度(gg/cm3)标准马氏密度压实实度(%)旋转压实密度压实实度(%)最大理论密度压实实度(%)K819+20008.25上面层2.4172.4592.4842.59198.397.393.3K819+25004.50上面层2.4492.4592.4842.59199.698.694.4K819+30000.75上面层2.4172.4592.4842.59198.397.393.3K819+300010.25上面层2.4852.4592.4822.589101.1100.196.0K819+35000.75上面层2.4572.4592.4822.58999.999.094.9K819+35008.25上面层2.4112.4592.4822.58998.197.193.12、碾压方案二（K819+200-818+950右幅）施工段落共取芯样6个点，马氏压实度极大值为99.6，极小值为98.3，平均值98.7；理论相对密度压实度极大值为94.5，极小值为93.3，平均值93.7。桩号横距层次密度(g/cm33)标准马氏密度(gg/cm3)旋转压实密度(gg/cm3)最大理论密度(gg/cm3)标准马氏密度压实实度(%)旋转压实密度压实实度(%)最大理论密度压实实度(%)K819+05004.50上面层2.4162.4592.4842.59198.397.393.3K819+05008.25上面层2.4492.4592.4842.59199.698.694.5K819+10000.75上面层2.4182.4592.4822.58998.397.493.4K819+15008.25上面层2.4392.4592.4822.58999.298.394.2K819+150010.25上面层2.4242.4592.4822.58998.697.793.6K819+20008.25上面层2.4172.4592.4822.58998.397.493.43、厚度共检测14点，极大值为4.2，极小值3.8，平均值4.0,代表值4.0。检测桩号距中分带（m）碾压方式最大理论密度压实度（％）上面层厚度（cm）K819＋05004.50碾压方式293.34.0K819＋050010.393.44.2K819＋10000.7593.44.0K819＋10008.2594.64.1K819＋15008.2594.24.0K819＋150010.2593.63.8K819＋20008.25碾压方式193.44.2K819＋200010.2593.34.2K819＋25004.5094.64.0K819＋25008.2593.24.1K819＋30000.7593.43.9K819＋300010.2596.03.9K819＋35000.7594.94.0K819＋35004.5093.14.24、高程、横坡、宽度、松铺系数1）松铺、横坡方法一桩号位置松铺前读数（m）松铺后读数（m）压实后读数（m）松铺厚度（cm）压实厚度（cm）松铺系数横坡k819+4000右37.6547.7037.6960.0490.0421.161.6567.6197.6697.6620.0500.0431.1797.5567.6047.5970.0480.0411.18K819+3900右37.6047.6747.6650.0700.0611.141.9767.5707.6387.6290.0680.0591.1597.5037.5547.5470.0510.0441.15k819+3800右37.5297.5777.5700.0480.0411.161.5367.5017.5487.5410.0470.041.1797.4327.4857.4780.0530.0461.16k819+3700右37.4697.5147.5080.0450.0391.151.5367.4407.4887.4810.0480.0411.1697.3727.4237.4160.0510.0441.15k819+3600右37.4047.4537.4470.0490.0431.141.767.3777.4257.4190.0480.0421.1597.3027.3527.3450.0500.0431.17k819+3500右37.3377.3857.3780.0480.0411.181.7367.3007.3497.3420.0490.0421.1697.2317.2807.2740.0490.0431.15k819+3400右37.2577.3157.3070.0580.051.151.6867.2257.2747.2680.0490.0431.1397.1627.2147.2060.0520.0441.17k819+3300右37.2047.2567.2500.0520.0461.141.6867.1697.2197.2130.0500.0441.1497.1097.1557.1490.0460.041.16k819+3200右37.1367.1907.1830.0540.0471.141.767.1047.1557.1470.0510.0431.1897.0417.0877.0810.0460.041.16k819+3100右37.0697.1197.1110.0500.0421.181.7767.0397.0857.0790.0460.041.1596.9637.0127.0050.0490.0421.17k819+3000右36.9847.0347.0270.0500.0431.171.7766.9447.0006.9910.0560.0471.1996.8826.9276.9210.0450.0391.16方法二桩号位置松铺前读数（m）松铺后读数（m）压实后读数（m）松铺厚度（cm）压实厚度（cm）松铺系数横坡k819+2000右36.2276.2846.2750.0570.0481.190.2166.1816.2346.2260.0530.0451.1896.1066.1586.1510.0520.0451.16K819+1900右36.1676.2156.2080.0480.0411.180.2166.1156.1606.1540.0450.0391.1696.0426.0916.0830.0490.0411.20k819+1800右36.1066.1576.1490.0510.0431.190.2166.0526.1036.0950.0510.0431.1995.9806.0346.0260.0540.0461.18k819+1700右36.0616.1096.1020.0480.0411.160.2166.0106.0596.0510.0490.0411.2095.9365.9865.9780.0500.0421.19k819+1600右36.0276.0766.0680.0490.0411.190.2165.9806.0316.0230.0510.0431.1895.9025.9525.9450.0500.0431.16k819+1500右35.9766.0306.0220.0540.0461.180.2165.9225.9715.9630.0490.0411.1995.8575.9065.8980.0490.0411.20k819+1400右35.9205.9705.9620.0500.0421.190.2165.8625.9095.9010.0470.0391.2095.7985.8445.8380.0460.0401.16k819+1300右35.8725.9195.9120.0470.0401.171.8265.8205.8695.8610.0490.0411.2095.7605.8115.8030.0510.0431.19k819+1200右35.8265.8765.8690.0500.0431.161.8565.7765.8245.8180.0480.0421.1595.7175.7665.7580.0490.0411.20k819+1100右35.7975.8465.8380.0490.0411.191.9265.7405.7895.7820.0490.0421.1795.6825.7295.7230.0470.0411.15k819+1000右35.7625.8085.8010.0460.0391.181.8565.7115.7605.7520.0490.0411.2095.6475.6985.6900.0510.0431.19经计算方法一的碾压组合的松铺系数为1.16,碾压组合二的松铺系数为1.18,但碾压方法二的横坡控制的更好.2）高程方法一桩号水准点编号实测高程设计高程偏差备注F989-18.711K819+4000右37.6967.710-0.01467.6627.6500.01297.5977.5900.007K819+3900右37.6657.6580.00767.6297.6080.02197.5477.548-0.001K819+3800右37.5707.606-0.03667.5417.546-0.00597.4787.486-0.008K819+3700右37.5087.542-0.03467.4817.482-0.00197.4167.422-0.006K819+3600右37.4477.477-0.03067.4197.4170.00297.3457.357-0.012K819+3500右37.3787.404-0.02567.3427.344-0.00297.2747.284-0.010K819+3400右37.3077.330-0.02367.2687.270-0.00297.2067.210-0.004K819+3300右37.2507.256-0.00667.2137.1960.01797.1497.1360.013K819+3200右37.1837.1820.00167.1477.1220.02597.0817.0620.019K819+3100右37.1117.1080.00367.0797.0480.03197.0056.9880.017K819+3000右37.0277.034-0.00766.9916.9740.01796.9216.9140.007方法二桩号水准点编号实测高程设计高程偏差备注F989-17.676K819+2000右36.2756.298-0.02366.2266.238-0.01296.1516.178-0.027K819+1900右36.2086.234-0.02666.1546.174-0.02096.0836.114-0.031K819+1800右36.1496.169-0.02066.0956.109-0.01496.0266.049-0.023K819+1700右36.1026.111-0.00966.0516.0510.00095.9785.991-0.013K819+1600右36.0686.0530.01566.0235.9930.03095.9455.9330.012K819+1500右36.0226.0030.01965.9635.9430.02095.8985.8830.015K819+1400右35.9625.9520.01065.9015.8920.00995.8385.8320.006K819+1300右35.9125.9090.00365.8615.8490.01295.8035.7890.014K819+1200右35.8695.8650.00465.8185.8050.01395.7585.7450.013K819+1100右35.8385.8290.00965.7825.7690.01395.7235.7090.014K819+1000右35.8015.7930.00865.7525.7330.01995.6905.6730.0176.5236.524-0.001宽度共检测10点,分别为:11.30,.31,11.28,11.29,11.32,11.26,11.29,11.29.11.30,均大于设计宽度.5、渗水系数共检测20点，其中碾压方式一：10点有6点渗水不合格，而碾压方式二：10点仅有1点不合格。检测桩号距中分带（m）碾压方式渗水系数（ml//min）K819＋00004.5碾压方式2127.3K819＋02009.50K819＋05003.00K819＋07002.06.0K819＋08006.50K819＋10009.50K819＋12009.50K819＋14002.020.0K819＋17009.50K819＋19003.020.0K819＋21008.5碾压方式186.0K819＋22004.044.0K819＋250010.0168.0K819＋27003.5124.0K819＋29007.589.3K819＋30003.5210.5K819＋31551.522.7K819＋32559.521.3K819＋35002.08.0K819＋36668.0187.86、平整度用连续式平整度仪检测，分别为0.43,0.32,0.34,0.37,0.30,0.38,0.37,0.44,满足指导意见的规范要求。7、通过以上试验检测结果分析，建议采用碾压方式二。三、结论及建议：根据施工现场的施工情况和对试验段检测数据分析，本次试验段施工应该是成功的。沥青混合料质量较好，试验段实体质量较好(碾压方式二)。经总监办研究认为项目部在本次试验段施工过程做得较好的方面有：1、项目部、监理组高度重视，在施工前进行认真的施