高铁长大隧道洞内CPII网分多段建网方案探讨
发布时间：2019-06-05 18:42
【摘要】：现行高速铁路测量规范中规定:无砟轨道隧道洞内CPII控制网应在隧道贯通后一次性进行建网测量。然而,由于施工工期紧,一些高铁长大隧道洞内CPII控制网不得不分多段进行建网测量。以宝峰隧道洞内CPII控制网分三段建网为例,提出高速铁路长大隧道洞内CPII控制网分多段建网的测量技术,并且进行分析探讨。利用提出的自由测站边角交会网和交叉导线网混合构网的方法,以及段与段之间搭接数据顺推处理的技术,能够建立满足精度要求的洞内CPII控制网,并且避免各段单独建网时搭接误差大而难以处理的风险。该方案值得在高速铁路长大隧道洞内CPII控制网分多段建网时应用。
[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.
【作者单位】： 西南交通大学地球科学与环境工程学院;高速铁路运营安全空间信息技术国家地方联合工程实验室;
【基金】：长江学者和创新团队发展计划资助项目(PCSIRT)
【分类号】：U452.1
，
本文编号：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.
【作者单位】： 西南交通大学地球科学与环境工程学院;高速铁路运营安全空间信息技术国家地方联合工程实验室;
【基金】：长江学者和创新团队发展计划资助项目(PCSIRT)
【分类号】：U452.1
，
本文编号：2493743
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