近年来，河北省高速公路的建设以每年通车里程１００多公里的速度增加，随着高速公路的开通，设计收费监控通信系统也暴露出一些问题，这些问题应引起我们的高度重视。第一，人手井雨水渗透对高速公路路基的破坏。通信系统预埋管道和人手井对平原段高速公路路基影响较小。因为 In recent years, the construction of expressways in Hebei Province has increased at an annual mileage of more than 100 kilometers. With the opening of expressways, some problems have been exposed in the design of toll-monitoring communication systems. These problems should arouse our attention. First, the man-made rainwater infiltration on the highway subgrade damage. Communication system embedded pipes and man-made wells on the plain section of expressway subgrade less affected. because