论文部分内容阅读
广西壮族自治区现有公路等级低、基础差、抗灾能力弱，且多为山区公路。由于我区经济落后，养路费收入少，每公里养路费收入仅为全国平均水平的三分之二，已远远不能满足对现有公路养护和改造提高的需要，再加上近年来我区遭受特大洪水灾害造成的水毁遗留工程，以及日益增多的?
The existing roads in Guangxi Zhuang Autonomous Region have low grade, poor foundation and weak disaster resistance, and are mostly mountainous roads. Due to the economic backwardness of our region and the low toll fee income, the toll fee per kilometer is only two thirds of the national average, which is far from meeting the need for the improvement and maintenance of existing roads. In addition, in recent years, The legacy of water damage caused by the catastrophic floods and the growing number?