界石垃圾二次轉(zhuǎn)運(yùn)站功能完善項(xiàng)目補(bǔ)充勘察鉆孔放樣測量技術(shù)說明

PAGE界石垃圾二次轉(zhuǎn)運(yùn)站功能完善項(xiàng)目補(bǔ)充勘察鉆孔放樣測量技術(shù)說明項(xiàng)目名稱：界石垃圾二次轉(zhuǎn)運(yùn)站功能完善項(xiàng)目補(bǔ)充勘察鉆孔放樣測量報告名稱：界石垃圾二次轉(zhuǎn)運(yùn)站功能完善項(xiàng)目補(bǔ)充勘察鉆孔放樣測量測量依據(jù):1.根據(jù)廣西華藍(lán)巖土工程有限公司關(guān)于界石垃圾二次轉(zhuǎn)運(yùn)站功能完善項(xiàng)目勘察方案平面布置圖及重慶市勘測院提供的測量控制點(diǎn)作為本次測量的依據(jù)，該圖坐標(biāo)系統(tǒng)為重慶獨(dú)立坐標(biāo)系統(tǒng)，高程系統(tǒng)為1956年黃海高程系統(tǒng)。二、.執(zhí)行規(guī)范《工程測量規(guī)范》(GB50026-2007);《衛(wèi)星定位城市測量規(guī)范CJJT73-2010》;《全球定位系統(tǒng)實(shí)時動態(tài)測量(RTK)技術(shù)規(guī)范》；《1：500、1:1000、1：2000地形圖圖式》（GB/T7929-1995）；《測繪技術(shù)總結(jié)編寫規(guī)定》（CH1001-91）；《測繪產(chǎn)品檢查驗(yàn)收規(guī)定》（CH1002-95）；《測繪產(chǎn)品質(zhì)量評定標(biāo)準(zhǔn)》（CH1003-95）。三、已知控制點(diǎn)成果及利用測區(qū)所收集到的已知平面控制起算點(diǎn)成果系重慶市勘測院提供，為重慶獨(dú)立坐標(biāo)系，高程為1956年黃海高程系。已知點(diǎn)成果如下：編號XYZGPS150164.88965858.017291.254GPS250006.94265970.627283.9451.根據(jù)廣西華藍(lán)巖土工程有限公司提供的洛磧垃圾應(yīng)急填埋場對外交通工程巖土工程勘察方案平面布置圖解算出各鉆孔坐標(biāo)。然后根據(jù)已知平面控制點(diǎn),使用中海達(dá)V30RTK，根據(jù)圖解出來的孔位坐標(biāo)在實(shí)地上放出各孔位置。四、RTK放樣的實(shí)施：（1）基準(zhǔn)站選設(shè)①基準(zhǔn)站選設(shè)在視野開闊，高度截止角大于15°，且周圍無大面積水域、大型建筑物等信號反射較強(qiáng)的地方，同時應(yīng)盡量避免交通工具與行人的干擾。②基準(zhǔn)站應(yīng)設(shè)置在測區(qū)相對內(nèi)地勢相對較高的控制點(diǎn)上，以便差分信號的播發(fā)。③在選設(shè)基準(zhǔn)站時還應(yīng)遠(yuǎn)離微波塔、通信塔等強(qiáng)電磁發(fā)射源200米外，同時還應(yīng)該遠(yuǎn)離高壓輸電線50米外。④基準(zhǔn)站點(diǎn)選設(shè)好后留有專人進(jìn)行看管、檢查設(shè)備的運(yùn)行情況。（2）放樣實(shí)施由于GPS采用的是WGS84地心坐標(biāo)系，高程為大地高，而測區(qū)為北京坐標(biāo)系，高程為正常高，因此必須進(jìn)行參數(shù)轉(zhuǎn)換和高程擬合?？紤]到實(shí)際情況，平面采用兩個已知點(diǎn)進(jìn)行四參數(shù)轉(zhuǎn)換，第三點(diǎn)進(jìn)行檢核，高程采用固定差改正進(jìn)行高程擬合，經(jīng)檢驗(yàn)精度全部符合要求。設(shè)置好基準(zhǔn)站和流動站一系列參數(shù)后，采用基準(zhǔn)站發(fā)射出的差分信號進(jìn)行放樣了，平面精度控制在5cm內(nèi)，并實(shí)測出高程記錄在手簿中。放孔前進(jìn)行了已知控制點(diǎn)檢查，詳見測量控制點(diǎn)自檢表1，各鉆孔坐標(biāo)及孔口標(biāo)高見附表2。各鉆孔坐標(biāo)、實(shí)測孔口標(biāo)高見表2：鉆孔編號X坐標(biāo)Y坐標(biāo)H高程備注BK150084.96166158.747290.40BK250083.82366164.371291.96BK350074.44266162.221286.80BK450075.8466157.618286.79BK550081.37566094.108283.74BK650077.10866113.776283.47BK750070.94166083.16283.63BK850067.53666099.59283.62BK950066.78666103.285283.54BK1050063.42866119.178283.44BK1150060.93366088.602283.61BK1250056.95566109.203283.43BK1350064.28966165.334286.54BK1450045.98866160.419285.83BK1550058.29766174.215286.34BK1650043.37766170.962287.38BK1750057.99266079.068283.58BK1850054.55666095.025283.62BK1950050.08266116.726283.68BK2050047.97966126.244283.90BK2150048.22766077.96283.49BK2250043.8366092.101283.56BK2350039.82566114.87284.41BK2450037.92666123.48283.83BK2550026.63866121.567284.43BK2650028.75166111.862284.11BK2750033.37966090.006283.43BK2850036.6866074.536283.45BK2950030.87466060.476283.61BK3050036.86666069.69283.53BK3150027.61666074.96283.61BK3250021.67366067.144283.66BK3350020.51566081.006283.57BK3450023.89466104.108283.90BK3550029.23366082.837283.50BK3650015.56866103.492283.85BK3750023.76366108.595284.05BK3850021.9166117.203283.67BK3949998.51166112.237284.24BK4050000.35766103.716283.00BK4150038.56166131.854284.45BK4250032.15366158.162287.86BK4350018.2566155.781287.11BK4450014.09666170.473293.35BK4550028.76466179.067290.49BK4650020.55266126.896284.01BK4750018.61266133.552284.16BK4849992.44366120.568284.28BK4949991.13966126.65281.79BK5049984.79266140.392282.05BK5150000.36766151.763285.52BK5249969.67666110.94282.74BK5350001.02166050.868284.26BK5449997.79766066.509283.85BK5549993.39766088.182283.11BK5649988.5566109.997284.43BK5749989.62866047.885284.29BK5849986.13466063.805284.07BK5949981.63666084.717283.24BK6049976.52566107.669285.15BK6149970.14166106.819284.62BK6250018.03866138.205284.14BK6350017.47966141.196284.12BK6450013.1566137.12284.22BK6550012.46266139.985284.39BK6650044.40765751.292286.92BK6750042.32665761.081286.98BK6850039.