在地下水位较高的地区修建地道桥时,常在引道内修建地下盲沟来排除引道范围内的地下水,以保证交通的畅通,故铁路两侧的地下水都需通过盲沟和连通管将水引入泵站,再经泵站抽升后排出。而由于路面结构的要求,一般需将地下水位降至路面结构基础以下一定深度,才能保证路面结构的安全。所以历来地下水盲沟和连通管的埋置较深,需在地道桥底板 When constructing underground bridges in areas with high groundwater table, underground blind ditches are often built in the approach roads to eliminate groundwater in the approach roads so as to ensure the smooth flow of traffic. Therefore, groundwater on both sides of the railway needs to pass through blind ditches and connecting pipes Water into the pumping station, pumping again after the pumping station discharge. However, due to the requirements of the pavement structure, it is generally required to reduce the groundwater level to a certain depth below the pavement structure foundation in order to ensure the safety of the pavement structure. Therefore, groundwater blind ditch and connected pipes have always been buried deeply and need to be bridge floor