發(fā)布時(shí)間：2019-06-05 18:42

【摘要】：現(xiàn)行高速鐵路測(cè)量規(guī)范中規(guī)定:無(wú)砟軌道隧道洞內(nèi)CPII控制網(wǎng)應(yīng)在隧道貫通后一次性進(jìn)行建網(wǎng)測(cè)量。然而,由于施工工期緊,一些高鐵長(zhǎng)大隧道洞內(nèi)CPII控制網(wǎng)不得不分多段進(jìn)行建網(wǎng)測(cè)量。以寶峰隧道洞內(nèi)CPII控制網(wǎng)分三段建網(wǎng)為例,提出高速鐵路長(zhǎng)大隧道洞內(nèi)CPII控制網(wǎng)分多段建網(wǎng)的測(cè)量技術(shù),并且進(jìn)行分析探討。利用提出的自由測(cè)站邊角交會(huì)網(wǎng)和交叉導(dǎo)線網(wǎng)混合構(gòu)網(wǎng)的方法,以及段與段之間搭接數(shù)據(jù)順推處理的技術(shù),能夠建立滿足精度要求的洞內(nèi)CPII控制網(wǎng),并且避免各段單獨(dú)建網(wǎng)時(shí)搭接誤差大而難以處理的風(fēng)險(xiǎn)。該方案值得在高速鐵路長(zhǎng)大隧道洞內(nèi)CPII控制網(wǎng)分多段建網(wǎng)時(shí)應(yīng)用。
[Abstract]:According to the current high-speed railway survey code, the CPII control network in ballastless track tunnel should be measured at one time after the tunnel runs through. However, due to the tight construction period, some CPII control networks in long high-speed rail tunnels have to be measured in multiple sections. Taking the construction of CPII control network in Baofeng tunnel into three sections as an example, the measurement technology of CPII control network in long tunnel of high speed railway is put forward, and the analysis and discussion are carried out. By using the proposed method of hybrid network construction of free station edge and corner rendezvous network and cross-wire network, as well as the technology of parallel data processing between segments, the in-hole CPII control network can be established to meet the accuracy requirements. And avoid the risk that the lap error is large and difficult to deal with when each section is built separately. This scheme is worth applying in the construction of CPII control network in long tunnel of high-speed railway.
【作者單位】： 西南交通大學(xué)地球科學(xué)與環(huán)境工程學(xué)院;高速鐵路運(yùn)營(yíng)安全空間信息技術(shù)國(guó)家地方聯(lián)合工程實(shí)驗(yàn)室;
【基金】：長(zhǎng)江學(xué)者和創(chuàng)新團(tuán)隊(duì)發(fā)展計(jì)劃資助項(xiàng)目(PCSIRT)
【分類號(hào)】：U452.1
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本文編號(hào)：2493743