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      水準(zhǔn)、導(dǎo)線復(fù)測(cè)報(bào)告

       kaixin100sc 2011-04-14

      [轉(zhuǎn)] 水準(zhǔn)、導(dǎo)線復(fù)測(cè)報(bào)告

      云溪路(華南路~大觀路)土建工程一標(biāo)段

      水準(zhǔn)、導(dǎo)線復(fù)測(cè)報(bào)告

       

      一、工程概況
        1.地理位置
        云溪路一標(biāo)段位于廣州天河區(qū)東北部,華南植物園南面,道路西起華南快速路西側(cè)中科院廣州化學(xué)研究所與廣州有色金屬研究院之間,與現(xiàn)有道路接順,東至華南植物園南門口(現(xiàn)有云溪路)。主線全長(zhǎng)1.2公里,互通立交匝道包括A、B、C、DE、FG、HI、J、L、M匝道的全部工程量,匝道總長(zhǎng)約4.4公里。內(nèi)含三座主線橋、七座匝道橋、一座人行天橋、一條車行道涵、一條人行道涵。
        2. 坐標(biāo)及高程系統(tǒng)
        根據(jù)設(shè)計(jì)說(shuō)明,本標(biāo)段平面控制采用廣州城建坐標(biāo)系統(tǒng),高程采用廣州市城建高程系統(tǒng)。
        

      二、設(shè)計(jì)提交數(shù)據(jù)及交樁情況
        設(shè)計(jì)單位共提供I07I08、I09、I10I11、I13、I14、七個(gè)I級(jí)控制點(diǎn)和I07、I08、I09、I10、I11五個(gè)四等水準(zhǔn)點(diǎn),其中I09、I10兩個(gè)點(diǎn)在全封閉的華南快速路邊,不能進(jìn)入,因此實(shí)際能夠使用的只有I07、I08、I11I13、I14五個(gè)點(diǎn)。
        10 12 號(hào)由業(yè)主牽頭組織了四方人員(廣園市政建設(shè)有限公司、遼寧省城鄉(xiāng)建設(shè)規(guī)劃設(shè)計(jì)院、廣州建筑工程監(jiān)理有限公司和廣州第一市政工程有限公司)進(jìn)行現(xiàn)場(chǎng)交樁,由于控制點(diǎn)均布設(shè)于砼路面上,保存完好,因此現(xiàn)場(chǎng)即辦理好交接手續(xù)。


        三、控制點(diǎn)復(fù)測(cè)
        1. 導(dǎo)線點(diǎn)復(fù)測(cè)
        交接樁后,我單位(廣州第一市政工程有限公司)立即組織人員:XXXXXX、XXX等人,于1112~14日三天時(shí)間,對(duì)已交接樁五個(gè)導(dǎo)線點(diǎn)進(jìn)行邊、角復(fù)測(cè)。

      在導(dǎo)線點(diǎn)復(fù)測(cè)時(shí),我單位使用經(jīng)檢定合格的SOKKIA全站儀,型號(hào)SET2110,導(dǎo)線點(diǎn)測(cè)量全部按一級(jí)導(dǎo)線測(cè)量精度要求進(jìn)行四測(cè)回邊角觀測(cè),為滿足施測(cè)通視要求,在I08I13之間增設(shè)了I08-1、I08-2兩個(gè)轉(zhuǎn)點(diǎn),采用附合導(dǎo)線法進(jìn)行測(cè)量。
        以I07I08為起始邊、I08為起算點(diǎn),附合至I14I11,經(jīng)四測(cè)回邊角測(cè)量,導(dǎo)線全長(zhǎng)【S】=899.809m,計(jì)算方位角閉合差為fβ=36.7,平均角度改正值7.33,縱坐標(biāo)差fx-0.011m;橫坐標(biāo)差fy0.035m,全長(zhǎng)閉合差fs0.037m,相對(duì)閉合差k1:24537<允許閉合差1:15000,故采用簡(jiǎn)易平差法,可滿足精度要求。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
        2.  水準(zhǔn)點(diǎn)復(fù)測(cè)
        設(shè)計(jì)單位共提供三個(gè)水準(zhǔn)點(diǎn),其中I07、I08、I11在本標(biāo)段附近,本標(biāo)對(duì)07、I08、I11進(jìn)行了復(fù)測(cè)。
        在水準(zhǔn)點(diǎn)復(fù)測(cè)時(shí),我單位使用經(jīng)檢定的蘇光DSZ2自動(dòng)安平水準(zhǔn)儀,按照四等水準(zhǔn)測(cè)量要求標(biāo)準(zhǔn)進(jìn)行往返測(cè)量。通過自I07I08I11實(shí)際測(cè)量,路線總長(zhǎng):往測(cè)1804m,返測(cè)1804m,實(shí)測(cè)誤差為10mm,小于四等水準(zhǔn)允許誤差±12√L =16.1mm,因此采用簡(jiǎn)易平差法進(jìn)行平差,精度滿足《施工測(cè)量規(guī)范》要求。
       

       附件:

      1、          附合導(dǎo)線計(jì)算成果表

      2、          附合水準(zhǔn)平差計(jì)算表

      3、          全站儀檢定證書

      4、          水準(zhǔn)儀檢定證書

                                

       

       

       

                                          廣州市XXXXXX工程有限公司

                                           XXX項(xiàng)目經(jīng)理部

                                             2009      

       

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