1·Research results: Under the same load condition, the tensile stress of ballastless track slabs without close connected is bigger than that of slabs with close linkage structure.
研究结果：在同样荷载条件下，板层之间无紧密连接的无碴轨道的板层拉应力要大于板层有紧密连接结构的拉应力；
2·Research purposes: Through the theoretical research, this paper puts forward some suitable suggestions on the main technical standards of horizontal control survey for ballastless track construction.
研究目的：通过理论研究，对无碴轨道施工平面控制测量的主要技术标准提出适宜的建议。