广佛肇高速肇庆大旺至封开江口段施工定测技术总结

PAGE广佛肇高速公路肇庆大旺至封开江口段A3合同段施工定测技术总结中交第一公路勘察设计研究院有限公司2013年10月PAGE3目录TOC\o"1-2"\h\z\uHYPERLINK2已有资料利用 2HYPERLINK\l"_3技术依据"3技术依据 2HYPERLINK\l"_4资源配置"4资源配置 2HYPERLINK\l"_5_设计方案"5实施方案 4HYPERLINK\l"_6定测工作内容及精度要求"6定测精度要求及完成工作量 4HYPERLINK\l"_6.1控制点检测"6.1控制点检测 4HYPERLINK\l"_6.1.1平面控制点检测"6.1.1平面控制点检测 4HYPERLINK\l"_6.1.2高程控制点检测"6.1.2高程控制点检测 10HYPERLINK\l"_6.2路线中桩放样"6.2路线中桩放样 17HYPERLINK\l"_6.3路线中桩高程测量"6.3路线中桩高程测量 19HYPERLINK\l"_6.4横断面测量"6.4横断面测量 19HYPERLINK\l"_6.5地形图补测"6.5地形图补测 19HYPERLINK\l"_6.6被交路、被交渠、高压线悬高等工点测量"6.6被交路被交渠高压线悬高等工点测量 21HYPERLINK\l"_6.7完成工作量"6.7完成工作量 21HYPERLINK\l"_7__作业自检"7作业自检 23HYPERLINK\l"_7.1中桩平面位置和高程自检"7.1中桩自检 23HYPERLINK\l"_7.2横断面自检"7.2横断面自检 37HYPERLINK\l"_8安全生产及质量保证与检查验收"8安全生产及质量保证与检查验收 49HYPERLINK\l"_8.1人身安全"8.1人身安全 49HYPERLINK\l"_8.2仪器设备资料安全"8.2仪器设备资料安全 49HYPERLINK\l"_8.3驻地安全"8.3驻地安全 50HYPERLINK\l"_8.4社交安全"8.4社交安全 50HYPERLINK\l"_8.5质量保证措施与检查验收"8.5质量保证措施与检查验收 50HYPERLINK\l"_9安全生产及质量保证与检查验收"9资料上交 511概述1.1任务来源受业主的委托，由中交第一公路勘察设计研究院有限公司承担广佛肇高速公路肇庆大旺至封开江口A3合同段约58公里定测阶段施工图测量工作。1.2地理位置拟建广佛肇高速公路肇庆段公路工程是广东省高速公路网四十条加密联络线中重要的一条，是西江北岸的又一出省通道，也是肇庆市主骨架公路“三纵四横”中的第三横。项目起于四会市大沙镇，与二广高速相接，终于广东与广西交界处，往西延伸接梧州环城高速。广佛肇高速公路肇庆段总里程约177公里。根据招标文件本项目工程勘察设计共分3个设计合同段，其中第A3合同段新建主线路线长约58公里，主要位于德庆县和封开县境内。地处东经111°25′59″至111°50′33″，北纬23°11′29″至23°29′32″之间。肇庆属南亚热带季风气候。年平均气温21.2℃，1月份平均气温约12℃，7月份平均气温约28.7℃。怀集县北部山区冬季可见霜冻。年平均降雨量约1650毫米，主要集中在4～9月；年蒸发量1300毫米以上。无霜期310～345天。早春多阴雨，夏秋受台风外围影响，晚秋有寒露风侵袭。年内主要气候特点：春季温暖多雨，为低温阴雨偏轻年景，有轻度的倒春寒现象；前、后汛期雨量偏多，“龙舟水”与热带气旋降水明显；强对流天气频发，大风天气较多，局部地方出现龙卷风。测区位于封开县和德庆县之间，整段线路地处低山、丘陵区，并且植被茂密，交通不便利，为测量工作带来了极大的困难。2测区已有资料设计部门提供的1：2000地形图、A3合同段工作大纲、A3合同段首级控制及成果、A3合同段初步设计外业相关资料3技术依据JTGC10-2007《公路勘测规范》JTG/TC10-2007《公路勘测细则》4资源配置仪器设备和软件序号仪器、软件名称品牌型号标称精度产地数量1双频GPS接收机华测X9005mm+1ppm上海6台2南方灵锐825mm+1ppm广东6台3全站仪徕卡TCR1102C2″瑞士2台4水准仪南方DL2007DSZ3广东1台5笔记本电脑联想E430C4台6联想2台7惠普2台8绘图软件南方CASS7.0广东8套9纬地5.88西安8套10脚架广东10个11对讲机北锋5Km上海10部12打印机惠普2台13工程车4辆 人力资源序号姓名专业项目任职1张志俊工程测量项目负责2赵斌工程测量技术组长3呼海龙工程测量4宋斌工程测量5宋群地工程测量6张阳工程测量7宋磊工程测量8郭浩工程测量9李凯工程测量10焦富平工程测量11张明辉工程测量12王亚超测工13张凯测工14李育红测工15宁刚测工16焦延武驾驶员17张雄义驾驶员5实施方案内业整理、复核审核编制测量设计书内业整理、复核审核编制测量设计书实施方案控制测量中桩放样横断面测量碎部点及工点测量外业自检、互检外业自检、互检院质量部检查6定测工作内容及精度要求6.1控制点检测广佛肇高速公路A3合同段定测开始前，我们对初测的控制测量成果及点位布设情况进行了检测和检查，原有控制采用坐标系统为1980西安坐标系，中央子午线为111度42分，投影面高程为100米；高程系统为1985国家高程。共埋设四等GPS点29个，一级GPS点134个。从检查的结果来看，控制点分布比较均匀，相邻点之间互相通视，控制点均沿线路布设。除E028、E034、E114被破坏外，其余的控制桩保存完好。6.1.1平面控制点检测平面控制点检测点号X(m)Y(m)X(m)Y(m)△S(m)距离(m)相对精度备注GD932580288.102488596.196固定E0012599107.972472746.0632599107.924472746.0980.05924605.1081/415204E0022599063.886472871.2132599063.765472871.1200.03324490.8871/741016GD1042598422.265473377.0062598422.395473377.0700.05823674.3401/405135GD1052598185.787472898.7392598185.725472898.7840.07623806.1681/312072E0052598762.613473725.7072598762.555473725.7410.06723715.7301/356624E0062598776.983473848.6162598777.031473848.5610.07223650.2271/329293E0072598612.635476567.9612598612.585476567.9870.05621919.5001/390953E0082598618.690476391.7282598618.752476391.6820.07722021.8731/285624E0092598377.866477330.0232598377.818477330.0580.05921311.1171/359699E0102598495.237477338.6152598495.116477338.5220.05421406.3211/396361ED012598241.962478389.0892598242.092478389.1530.08120652.5901/253772ED022598189.425477987.3392598189.313477987.2940.07320808.7041/283464E0132597592.112479174.5832597592.200479174.6270.05619702.7361/350293E0142597800.407479325.6622597800.455479325.6070.06819814.8011/290732GD1022597073.888480344.9352597073.838480344.9610.05618704.1121/331977GD1032597643.531480006.4892597643.469480006.5350.07619364.6851/254895E0152596481.250480391.3742596481.305480391.3960.03918153.1971/464061E0162596707.216480383.7092596707.271480383.7410.03518358.4721/526406E0172595802.039480784.3932595802.006480784.4370.04917369.6521/352592E0182596051.114480741.5392596051.050480741.5060.04317611.5501/413762E0192595069.845480998.3582595069.948480998.4240.06116620.1421/270529E0202595406.203481089.0442595406.124481088.9860.04516879.3601/375424GD1002594405.734481827.4432594405.732481827.3310.04715656.4691/335846GD1012594895.829481390.3942594895.738481390.3170.04816288.2691/342576E0212593976.756481723.3902593976.679481723.3740.06215317.0761/248516E0222593775.180481715.1062593775.131481715.0840.03415140.9931/449967E0232593471.706481790.2112593471.649481790.1770.03514836.7051/418347E0242593183.717481955.3402593183.669481955.3750.05914505.0391/247113E0252592853.568482132.2932592853.537482132.3360.04714130.5211/299145E0262592431.862481819.5352592431.922481819.5990.02113906.6401/655745E0272592368.512481528.0182592368.460481527.9730.02213996.2441/631693GD982590221.606482120.2042590221.694482120.2980.02211858.0571/529790GD992590738.268482246.4972590738.306482246.4420.06112228.0881/200345E0292589021.942482260.1902589021.880482260.0740.01810790.0571/601720E0302588622.725482293.6442588622.780482293.6660.03110449.3411/341481E0312588015.786482318.0122588015.831482318.0840.0109956.5301/950639E0322587939.834482596.8672587939.907482596.9810.0139723.2041/754287E0332588164.201482728.7572588164.077482728.7240.0809821.3141/123191GD962586981.083483004.7732586981.004483004.7150.0238721.2151/372043GD972587526.547482724.3072587526.475482724.2950.0489320.5831/192751E0352586644.225483242.0902586644.134483242.0130.0208310.6211/415728E0362585931.431483209.0232585931.354483209.0070.0457801.8011/174739E0372585462.471483079.8162585462.402483079.7940.0317563.3371/242732E0382585417.674483700.5572585417.567483700.5240.0557090.7701/129984E0392584977.277483570.7842584977.389483570.7990.0656873.4291/105030E0402584761.884483818.4712584761.890483818.4020.0546545.3871/120171E0412584369.557483662.9302584369.631483662.9740.0136402.7781/482484E0422584023.753483936.7612584023.846483936.8090.0215972.0741/288165E0432583757.588484364.6212583757.654484364.7020.0215472.0491/263201E0442583456.933484546.2962583456.844484546.2490.0185142.2751/284508GD942582829.774485222.5912582829.660485222.5250.0164223.8811/265953GD952583659.991485242.1702583660.096485242.2420.0244755.9811/200941EX012581816.116485859.6162581816.028485859.5810.0123134.2661/253969EX022582287.398485789.6442582287.277485789.5510.0063445.8611/621471EX032582720.275485848.6132582720.315485848.6770.0213669.4041/171402EX042583143.061485978.0142583143.073485978.0590.0223873.6941/179583E0452582771.694486734.0072582771.782486734.1010.0143104.2011/221424E0462582450.811486894.3432582450.869486894.3980.0122752.0321/237878E0472581933.379486971.9742581933.429486972.0000.0172311.9501/133508E0482581682.268487403.5592581682.300487403.5850.0071834.6961/247405E0492581446.904487544.8362581446.939487544.8580.0111564.6771/140467E0502581271.771487345.8712581271.807487345.8930.0051590.8911/320135E0512580973.893487679.8892580973.926487679.9030.0091144.5291/133620E0522580996.210487944.4292580996.186487944.3960.005962.4071/205165E0532581157.858488077.1212581157.901488077.1870.0031012.8781/326349E0542580915.639488528.6122580915.642488528.6200.002631.1681/296856E05525806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.247510116.8622568614.219510116.8970.04424483.0571/554971E1222568456.372510496.9992568456.321510496.9060.05824892.4121/432297E1232568738.978510694.1642568738.938510694.2280.07524934.0371/331357E1242568924.719510920.9512568924.781510920.9060.06825050.3041/367154E1252568989.153511206.3522568989.241511206.4460.04525276.2271/564859E1262569044.065511456.3532569044.153511456.2980.08825475.6871/288863E1272569004.571511777.5592569004.471511777.5850.06725781.7201/383979E1282569052.144512032.3552569052.082512032.2390.07825990.3111/334081E1292568814.599512153.8472568814.664512153.8250.04826203.0851/543179E1302568884.804512377.5372568884.759512377.6090.08426374.0751/312568GD802566067.380514460.3342566067.453514460.4480.06529515.8671/456021GD812565824.509513863.9882565824.435513864.0210.06529114.6121/445165GD822565829.560509909.1162565829.517509909.1820.07925754.4961/327007GD832566039.827509256.2092566039.866509256.1510.07025096.7321/359100GD842565802.392506154.8422565802.424506154.8100.04522762.6841/505296GD852566230.896505591.5182566230.937505591.4710.06222055.4591/353746HD012598211.561477711.8142598211.584477711.7660.04520969.5501/470446HD022598359.373477873.4292598359.307477873.3880.03621013.0211/586332HD032598339.701478714.6592598339.641478714.6120.03020579.2071/696748HD042598377.188478918.0152598377.124478917.9690.03520515.3801/590709由上表可以看出，起始边边长相对中误差小于1：100000，满足《规范》相关要求，精度可靠，因此A3合同段平面控制点成果使用原成果。6.1.2高程控制点检测高程控制点检测点名高程(m)检测距离(m)原高差(m)实测高差(m)高差较差(mm)较差限差(mm)备注E00198.774国家四等229.457.8267.829314.4E002106.6国家四等E00583.634国家三等131.877.9017.89837.3E00691.535国家三等1447.69-37.463-37.459424.1GD10554.072国家三等ED0232.171国家三等1162.07-4.753-4.758521.6E00927.421国家三等118.470.8890.89236.9E01028.31国家三等1238.0731.22431.227322.3E00759.537国家三等188.373.473.46828.7E00863.007国家三等HD0146.287国家三等1032.6731.18831.191320.3HD0277.475国家三等HD0328.014国家三等897.631.2881.284418.9HD0429.302国家三等GD10348.302国家三等1136.78-7.552-7.555321.3GD10240.75国家三等GD10128.141国家三等655.235.7355.737216.2E01933.876国家四等371.6519.76519.769418.3E02053.64国家四等2841.134.3924.395350.6E01758.032国家四等315.0325.29125.288316.8E01883.323国家四等4364.45-8.774-8.776262.7E01574.549国家四等256.1214.05414.056215.2E01688.603国家四等4895.36-38.473-38.476366.4E01450.129国家四等422.4611.62711.629219.5E01361.756国家四等2144.25-20.138-20.135343.9ED0141.618国家三等GD10039.799国家三等978.4846.90146.899219.7E02286.698国家四等260.57-7.484-7.481315.3E02179.214国家四等E027100.612国家四等345.5123.91623.919317.6E026124.527国家四等769.6-10.894-10.897326.3E025113.633国家四等426.3-17.915-17.913219.6E02495.718国家四等351.08-10.106-10.103317.8E02385.611国家四等GD9954.564国家三等897.64-11.639-11.638118.9GD9842.925国家三等GD9743.626国家三等434.768.7328.728413.2E03252.359国家四等1150.777.077.072232.2E03359.431国家四等609.29-0.135-0.138323.4E03159.297国家四等1678.43-17.011-17.014338.9E03042.29国家四等773.115.00515.002326.4E02957.296国家四等GD9423.759国家三等987.134.3524.356419.9E04428.11国家四等361.891.3841.382218.0E04329.493国家四等653.493.6073.3129724.3E04233.099国家四等505.35-3.878-3.882421.3E04129.22国家四等602.0127.8127.815523.3E04057.03国家四等694.77-5.383-5.385225.0E03951.647国家四等1385-27.966-27.961535.3E03723.681国家四等1100.9413.7413.742231.5E03837.421国家四等1141.19-13.284-13.287332.0E03624.135国家四等1250.3715.29815.295333.5E03539.432国家四等441.36-2.275-2.273213.3GD9637.156国家三等GD9529.554国家三等1786.62-2.36-2.364426.7EX0127.194国家四等686.49-4.986-4.986024.9EX0222.208国家四等563.823.0083.011322.5EX0325.216国家四等573.2914.24514.249422.7EX0439.461国家四等E04524.979国家四等475.7317.54917.551220.7E04642.528国家四等665.38-18.162-18.165324.5E04724.366国家四等621.7346.83646.836023.7E04871.202国家四等E04924.861国家四等462.22-1.135-1.135020.4E05023.726国家四等504.630.9981221.3E05124.724国家四等389.552.5862.585118.7E05227.31国家四等311.672.8352.833216.7E05330.145国家四等623.7511.90811.903523.7E05442.053国家四等387.63-11.834-11.832218.7E05530.219国家四等GD9329.874国家三等1126.7313.57513.575021.2E05643.449国家四等187.649.1679.166113.0E05752.616国家四等E05956.976国家四等221.91-0.232-0.234214.1E05856.744国家四等632.646.2486.252423.9E06062.992国家四等306.5415.39115.394316.6E06178.383国家四等718.66-21.268-21.273525.4E06257.115国家四等426.7323.29923.297219.6E06380.414国家四等712.46-13.76-13.757325.3E06466.654国家四等436.6130.44430.445119.8E06597.098国家四等854.3624.15324.15318.5GD91121.251国家三等421.67-17.952-17.955313.0E066103.299国家四等278.53-9.557-9.553415.8E06793.742国家四等442.48-4.868-4.864413.3GD9088.874国家三等311.465.5235.523011.2E06894.397国家四等389.725.1485.146218.7E06999.545国家四等531.6225.11125.115421.9E070124.656国家四等346.7711.19411.19417.7E071135.85国家四等E072179.349国家四等383.24-23.778-23.776218.6E073155.571国家四等552.39-21.86-21.865522.3E074133.711国家四等294.63-1.358-1.358016.3E075132.353国家四等784.73-33.857-33.86326.6E07698.496国家四等622.63-14.243-14.248523.7E07784.253国家四等302.4616.2216.224416.5E078100.473国家四等536.63-34.939-34.937222.0E07965.534国家四等943.65-19.533-19.538519.4GD8946.001国家三等521.4631.39531.395014.4E08077.396国家四等326.48-26.812-26.813117.1E08150.584国家四等GD8839.046国家三等663.7229.89529.893216.3E08268.941国家四等632.46-31.306-31.308223.9E08337.635国家四等627.8187.0587.046423.8E084124.685国家四等397.64-56.788-56.79218.9E08567.897国家四等768.4216.22316.226326.3E08684.120国家四等232.644.8314.833214.5E08788.951国家四等E088168.265国家四等526.73-39.015-39.014121.8E089129.25国家四等423.61-8.776-8.775119.5E090120.474国家四等415.69-17.241-17.245419.3E091103.233国家四等408.675.3075.309219.2E092108.54国家四等678.42-2.16-2.165524.7E093106.38国家四等506.739.1469.142414.2ED04115.526国家三等ED03109.869国家三等512.662.1132.113014.3E094111.982国家四等523.488.8738.875221.7E095120.855国家四等386.567.6877.684318.7E096128.542国家四等408.624.4074.407019.2E097132.949国家四等398.795.0365.034218.9E098137.985国家四等E100154.776国家四等354.64-25.132-25.136417.9E099129.644国家四等406.92-13.252-13.255312.7GD87116.392国家三等GD86122.166国家三等723.49-11.527-11.525217.0E101110.639国家四等389.62-8.783-8.785218.7E102101.856国家四等386.478.0778.075218.7E103109.933国家四等324.61-33.714-33.716217.1E10476.219国家四等E10562.817国家四等672.96-16.432-16.428424.6E10646.385国家四等243.672.8462.848214.8E10749.231国家四等GD8538.602国家三等833.62-5.235-5.238318.3GD8433.367国家三等E10874.762国家四等368.53-19.412-19.408418.2E10955.35国家四等E11057.546国家四等631.2720.73920.743423.8E11178.285国家四等462.39-16.148-16.146220.4E11262.137国家四等253.789.1689.167115.1E11371.305国家四等E11554.496国家四等465.97-17.13-17.13020.5E11637.366国家四等604.8612.59812.6223.3E11749.964国家四等237.691.6221.621114.6E11851.586国家四等E11969.494国家四等546.81-2.36-2.36022.2E12067.134国家四等388.94-22.092-22.096418.7E12145.042国家四等467.8518.65618.655120.5E12263.698国家四等389.95-22.742-22.743118.7E12340.956国家四等335.6718.05618.052417.4E12459.012国家四等326.64-11.596-11.6417.1E12547.416国家四等320.4729.62229.618417.0E12677.038国家四等E12749.266国家四等316.521.751.746416.9E12851.016国家四等346.975.5655.569417.7E12956.581国家四等307.57-23.383-23.383016.6E13033.198国家四等GD8327.884国家三等765.98-2.597-2.602517.5GD8225.287国家三等GD8127.769国家三等708.73-5.548-5.546216.8GD8022.221国家三等由上表可以看出，高程控制点精度良好，满足规范≤30i的要求，因此A3合同段高程控制点成果使用原成果。6.2路线中桩放样路线中桩放样，采用GPS-RTK进行道路放样，操作流程为：内业道路数据输入：在华测X900自带的测地通和南方灵锐82自带的工程之星软件下，新建道路文件，把设计单位提供的曲线元素用交点法或元素法输入到道路文件中，输入完成后用里程命名并保存。为了确认输入的正确性，输入完成后计算逐桩坐标和设计单位提供的逐桩坐标进行核对。外业道路放样：为了接收到更多的卫星和并让差分距离传播更远，RTK基站设置时尽量设置在地域开阔且地势相对较高的位置。流动站的设置则是在计算转换参数时，选用距离较远、位置开阔的四个以上控制点，同时要求覆盖整个放样区域均匀分布作业区域的周围。基准站与流动站应始终保持同步锁定5颗以上卫星，GDOP值应小于6，RTK流动站距基准站的距离控制在5Km内，流动站至最近的控制点小于2Km，并利用此段落未参与参数计算的控制点进行检查，在精度满足规范要求后在进行后面的工作。转换参数计算完后进入道路放样软件，按手簿提示进行中桩放样、中桩高程的采集和横断面测量。当天的作业完成后导出测量数据并传输到计算机进行内业资料整理。为了保证中桩放样和碎部点坐标采集的精度，GPS-RTK放样时要选择在卫星和差分信号好的情况下作业，以避免测量成果出现异常的数据变化。同时要求在每一站放样前均要对前一站所放中桩进行校核检查，只有在较差满足要求后，才能进行后续放样。当天外业结束后，从手簿导出测量数据传输到电脑中进行编辑整理。当遇到地形复杂，植被茂密的地方GPS-RTK信号不佳时，采用全站仪极坐标法或道路交点法放样。采用全站仪极坐标法放线时，其桩位宜由控制点放出，特殊情况下需采用支点法时，支点个数不宜超过两个，所放中桩应与路线前后所放中桩进行距离校检，以防止产生误差。当支点个数超过两个时，应校核转点的精度，以保证放桩桩位的准确。放出的控制桩应读数2次，二次点位差不得大于2cm。置镜点至测点间的距离不宜长于500m和短于50m。当仪器需要搬站时，搬站后必须对上站所放样点进行检核，只有所检核点满足规范要求是才可继续后面的放样工作。路线中桩间距，不应大于下表的规定。中桩间距直线（m）曲线（m）平原微丘区山岭重丘区不设超高的曲线R＞6030＜R＜60R＜30≤50≤252520105 注：表中R为曲线半径，以米计。凡下列位置应设加桩：1）路线纵、横向地形变化处；2）路线交叉点；3）路线起终点桩、左右行分离式路线起终点桩、公里桩、百米桩、曲线元素桩、断链桩；4）拆迁建筑物处；5）桥梁、涵洞、隧道等构造物处；6）土质变化及不良地质地段起、终点处；7）省、地（市）、县级行政区划分界处；8）改建公路变坡点、构造物路面面层类型变化处；9）在隧道洞口前后各延伸50米，应按地形、地质情况加桩，最大桩距为5m；10）大中桥桥台桩号前后各延伸30米，应按地形、地质情况加桩，最大桩距为10m。中桩平面桩位精度应符合下表规定：公路等级中桩位置中误差（cm）桩位检测之差(cm)平原、微丘重丘、山岭平原、微丘重丘、山岭高速公路≤±5≤±10≤±10≤±206.3路线中桩高程测量中桩高程应测量桩志处的地面标高。对沿线需要特殊控制的建筑物、管线、铁路轨顶等，应按规定测出其标高，其检测限差为±2cm。中桩高程测量可采用水准测量、三角高程测量或GPS-RTK方法施测，并应起闭于路线高程控制点。路线中桩高程测量精度应符合下表规定：公路等级闭合差（mm）两次测量之差(cm)高速公路≤30√L≤56.4横断面测量横断面测量逐桩施测，其方向与路线中线垂直，曲线路段与测点的切线垂直。横断面中的高程、距离的读数取位至0.1m。横断面测量力求反映地形、地物的变化，施测宽度满足路基及排水设计需要，一般各侧不小于50m，特殊设计路段（滑坡、高填、深挖等段），为保证测量精度满足设计需要，在设计人员现场指导下进行，测量方法采用华测双星X900(RTK)测地通道路测量软件、南方灵锐82高程之星道路测量软件。其操作流程同道路放样操作流程。横断面检测限差（m）路线距离高程高速公路、一级公路±(L/100+0.1)±(h/100+L/200+0.1)二级及以下公路±(L/50+0.1)±(h/50+L/100+0.1) 注：①L——测点至中桩的水平距离（m）；②h——测点至中桩的高差（m）。6.51:500地形图补测航测1：2000地形图不能满足隧道的设计要求，我们对9个隧道即18个隧道口进行了1:500数字化测图。成图方法：在外业测量过程中根据实地地形绘制草图，并赋予唯一的代码。将仪器测量的三维坐标下载到电脑上，用南方CASS相应的图式区分成图。地貌以等高线表示，明显的特征地貌应以符号表示。山顶、鞍部、凹地、山脊、谷底及倾斜变换点处，均注高程点。露岩、独立石、土堆、陡坎等，注记高程或比高。各种天然形成的斜坡、陡坎，其比高小于等高距的1/2或图上长度小于10mm时，不表示；当坡、坎较密时，可适当取舍。图上地物点的点位中误差与间距中误差区域类型点位中误差（mm）间距中误差（mm）山区、高山区0.80.6平原、丘陵区0.60.4注：隐蔽或施测困难地区，可放宽50%。等高线插求点相对邻近图根点的高程中误差，应符合下表规定：地形类别平坦地丘陵地山地高程中误差（m）1/3Hd1/2Hd2/3Hd注：a.Hd为等高距（m）。b.隐蔽、困难地区，可按上表放宽50%。高程注记点的高程中误差的规定如下：分类高程中误差（m）铺装路面0.07固定路面0.156.6被交路、被交渠、高压线悬高等工点测量当采用GPSRTK测量时基准站与流动站应始终保持同步锁定4颗以上卫星，PDOP值小于6，流动站至基准站的距离应小于5km，求解转换参数的高等级控制点大于4个，并包含整个作业区间，均匀分布于作业区域的周围；流动站至最近的高等级控制点小于2km；天线高测前、测后各测量一次，2次互差不得超过3mm。在作业区间内，至少检核2个以上的高级控制点。测量被交路的过程中对路面原有的构筑物一一实测，譬如涵洞、桥梁。涵洞、桥梁测量：每个涵洞至少保证12个点，点位均布设在路面上涵洞正上方，盖板下方以及涵洞底部；桥梁除了上述的12个点外，还实测桥墩的平面位置及高程。被交路测量：对于没有隔离带的公路一排布设三个点并控制在所测公路的法线方向，即路中、两边的硬路肩边沿；有隔离带的公路一排4个点。6.7完成工作量本次作业共完成主线（含左线及改线）中桩放样86.052KM，合计中桩7575个，平均桩距11.36米；互通（含服务区、停车区及改线）中桩放样23.112KM，合计中桩2250个，平均桩距10.272米；隧道9个；桥梁50座，桥左右边线合计40.161KM；涵轴109条；被交路39.626KM；被交渠16.929KM；中石油管道1.424KM；华润水泥传输带1.412KM；高压塔、高压杆及高压线悬高104处；庙及坟8个；1:500地形图18幅合2.245KM²。详见下表序号线型起始桩号终止桩号长度桩数平均桩距备注1主线122136.9135695.713.559112312.0742135695.71379402.24422010.20131383001443256.02555010.95541449651535008.53565812.971515378016601012.23095312.83361664051699203.51530011.71771701301706200.490647.65681708801712800.400577.01891715101762304.72037012.757101784151793350.9201048.846111794701796400.170256.80012隧道左线137082.3671379200.838859.855独屋13138320139093.690.774868.99614143187.9661443201.13210710.580罗日冕15144960146060.3531.1001169.48616152813.1931535110.6986311.076谷围咀17153780154569.1260.7897011.27318165432.6561659800.547658.421大要顶19166420167437.8471.01810110.07820169264.5871699100.6455910.939蛇咀1号211701301706000.470617.705蛇咀2号221708901712150.325476.91523171540172644.7431.1059611.508冷水顶241754001761050.7057010.071葫芦顶251784051793600.9551009.550261795151796400.125235.435粤桂27互通2.86925411.295德庆283.9774289.292回龙293.82238210.005谷圩302.7623178.713封开东313.69432311.437封开西32服务区1.51510514.429封开33停车区1.1579012.856宾村34超检站0.5915011.82035右线改线121650135848.514.199115312.314361425001434100.910979.381371745001761201.62015810.253381783851793400.9551128.527391794701796600.190267.30840左线改线137224.0571378700.646709.228独屋41138245139098.5260.8548510.041421425001434300.9301019.208罗日冕431755001761200.620689.118葫芦顶441784101793600.9501078.879451795151796600.145255.800粤桂46互通改线2.7253019.053156封开东中桩合计106.439982510.8337作业自检为了保证测量数据的可靠性及准确性，测量作业完成后，又对本次测量数据进行了抽查检核，具体检核如下：7.1中桩平面位置和高程自检中桩自检成果表序号桩号测量高程自检高程高程较差位置偏差检测（m）（m）（m）（m）（m）结果1K132+992.739128.141128.160.0340.035合格2K132+996.739125.068125.116-0.0010.044合格3K133+012.939124.449124.4970.0110.036合格4K133+013.539123.789123.806-0.0420.015合格5K133+035.596142.026142.064-0.0430.017合格6K133+444.739141.737141.769-0.0310.024合格7K133+464.139153.143153.1860.0050.042合格8K133+466.239153.233153.262-0.030.047合格9K133+828.739127.841127.8580.040.046合格10K133+845.739127.341127.348-0.0010.018合格11K133+860.739126.742126.776-0.0020.046合格12K133+867.039126.598126.618-0.0130.01合格13K133+871.739128.698128.7050.0370.014合格14K133+874.939128.429128.445-0.010.028合格15K133+878.739131.748131.795-0.0290.017合格16K133+885.739133.672133.6770.010.021合格17K133+900.739134.911134.9480.0460.046合格18K133+920.739138.261138.3050.0340.036合格19K133+940.739133.657133.672-0.0130.035合格20K133+947.739129.235129.274-0.0220.016合格21K133+965.739127.347127.358-0.0140.027合格22K136+400113.583113.5960.0470.009合格23K136+407.7112.005112.038-0.0450.031合格24K136+409.7108.066108.0920.0320.044合格25K136+413.4107.192107.213-0.0360.034合格26K136+416.5103.175103.1990.0020.021合格27K136+421103.372103.3970.0170.016合格28K136+422.3105.03105.079-0.0120.009合格29K136+440104.927104.97-0.0310.032合格30K136+460105.24105.2560.0230.048合格31K136+480105.151105.172-0.0040.037合格32K136+500105.045105.0840.0410.024合格33K136+520105.197105.2070.0120.047合格34K136+540105.085105.09-0.0420.029合格35K136+560104.472104.51300.013合格36K136+580104.63104.661-0.0070.03合格37K136+600104.912104.933-0.0270.032合格38K136+620104.418104.447-0.0030.027合格39K136+625.9102.942102.965-0.0330.02合格40K136+632.8102.429102.46300.034合格41K136+635.8104.611104.622-0.0430.026合格42K136+650104.401104.422-0.0120.046合格43K137+248114.026114.0710.0270.015合格44K137+252.7114.075114.101-0.0380.032合格45K137+270107.69107.697-0.0310.019合格46K137+287.5106.418106.4550.0060.048合格47K137+299107.054107.090.0470.031合格48K137+301108.302108.318-0.0050.036合格49K137+312.2108.792108.840.0280.048合格50K137+318.3112.827112.8360.0470.043合格51K137+322.4113.21113.248-0.040.044合格52K137+324114.993114.9980.0450.033合格53K137+775116.358116.38-0.0280.042合格54K137+778116.513116.544-0.0340.027合格55K137+782113.715113.764-0.0420.013合格56K137+800113.955113.986-0.0360.045合格57K139+352.879.39279.366-0.0150.016合格58K139+354.776.88176.8320.0020.042合格59K139+35877.37477.340.0120.035合格60K139+362.373.21173.191-0.0270.013合格61K139+36772.35172.315-0.0230.035合格62K139+375.869.23369.1950.0370.041合格63K140+033.242.27242.260.0210.037合格64K140+037.542.33542.3-0.0320.047合格65K140+05038.01937.9770.0260.032合格66K143+04398.95598.9890.0470.032合格67K143+04799.0499.047-0.0160.024合格68K143+05494.08594.099-0.0240.019合格69K143+07093.10593.1150.0360.026合格70K143+08593.993.9440.0090.048合格71K143+10093.96593.9960.0130.013合格72K143+12093.47493.52-0.0170.019合格73K143+121.292.30792.35100.024合格74K143+122.792.24392.2780.0320.028合格75K143+12593.49193.5290.0220.031合格76K143+14095.51595.5360.0050.015合格77K143+251103.647103.653-0.0380.029合格78K143+253.5105.798105.814-0.0250.014合格79K143+257106.015106.050.0250.043合格80K143+261106.022106.055-0.0110.02合格81K143+263105.951105.986-0.0240.036合格82K143+266.5107.883107.919-0.040.042合格83K145+418112.454112.4870.0410.024合格84K145+421112.085112.1030.0190.035合格85K145+425108.339108.356-0.0210.012合格86K145+427108.27108.3140.0430.039合格87K145+429109.256109.2680.0240.019合格88K145+440108.849108.8620.0410.009合格89K145+444111.093111.1030.0410.03合格90K145+454.5111.532111.562-0.0330.019合格91K145+462117.217117.229-0.0040.037合格92K145+480116.75116.7590.0130.041合格93K145+496115.085115.1210.0350.015合格94K145+500112.41112.448-0.0360.033合格95K145+520112.407112.439-0.020.031合格96K145+527113.302113.342-0.0020.035合格97K145+530.5109.791109.8