某铁路有一段线路通过石灰岩岩溶地区。该段线路长11.4公里,计有大桥4座,涵渠30座。大桥及涵渠曾于1958年进行过施工,后因故于1960年停工,其中有部分墩台基础已完工或修出水面。1969年该线复工,再次进行了勘测设计和将原修出水面的墩台及未修建的墩台继续施工,并于1971年十月完工和通车。有关各桥概况如表1所示。 A section of the railway line through the limestone karst area. This section of the line is 11.4 kilometers long, with 4 bridges and 30 culverts. The bridges and culverts were constructed in 1958 and were suspended for some reason in 1960. Some of them have been completed or repaired. In 1969, the line was resumed its work. Reconnaissance and design was carried out again. Pier and unfinished piers were repaired and started construction in October 1971 and opened to traffic. Table 1 shows the general situation of the bridge.