低路基桥涵优化设计

Optimization Design about Bridge and Culvert of Low Subgrade

对濮阳至信阳高速公路濮阳段路基高改低设计中桥涵设计要点加以简述,并通过增设天桥和下挖通道降低路基填土高度,解决由此引起的通道积水问题,从而实现了降低路基高度的设计目标。

The paper expounds the key points about bridge and culvert design in the engineering of reducing the subgrade height of Puyang Section of Puyang-Xinyang Expressway, and indicates adding the flying gangway and underground passage to solve the water accumulation in passages, obtains the design goal of reducing the subgrade height.