高鐵長大隧道洞內(nèi)CPII網(wǎng)分多段建網(wǎng)方案探討
發(fā)布時間：2019-06-05 18:42
【摘要】：現(xiàn)行高速鐵路測量規(guī)范中規(guī)定:無砟軌道隧道洞內(nèi)CPII控制網(wǎng)應在隧道貫通后一次性進行建網(wǎng)測量。然而,由于施工工期緊,一些高鐵長大隧道洞內(nèi)CPII控制網(wǎng)不得不分多段進行建網(wǎng)測量。以寶峰隧道洞內(nèi)CPII控制網(wǎng)分三段建網(wǎng)為例,提出高速鐵路長大隧道洞內(nèi)CPII控制網(wǎng)分多段建網(wǎng)的測量技術(shù),并且進行分析探討。利用提出的自由測站邊角交會網(wǎng)和交叉導線網(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),并且避免各段單獨建網(wǎng)時搭接誤差大而難以處理的風險。該方案值得在高速鐵路長大隧道洞內(nèi)CPII控制網(wǎng)分多段建網(wǎng)時應用。
[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】： 西南交通大學地球科學與環(huán)境工程學院;高速鐵路運營安全空間信息技術(shù)國家地方聯(lián)合工程實驗室;
【基金】：長江學者和創(chuàng)新團隊發(fā)展計劃資助項目(PCSIRT)
【分類號】：U452.1
，
本文編號：2493743
[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】： 西南交通大學地球科學與環(huán)境工程學院;高速鐵路運營安全空間信息技術(shù)國家地方聯(lián)合工程實驗室;
【基金】：長江學者和創(chuàng)新團隊發(fā)展計劃資助項目(PCSIRT)
【分類號】：U452.1
，
本文編號：2493743
本文鏈接：http://www.wukwdryxk.cn/kejilunwen/daoluqiaoliang/2493743.html
