改建工程中明涵变暗涵的设计可行性探讨

Probing into Design Feasibility of Changing Open Culvert to Blind Culvert in Rebuilding Project

在改建工程项目的桥涵设计中,原有可利用的明盖板涵若不改变其上部结构,能否直接于原铺装层上填土变为暗盖板涵,该文通过对盖板强度进行验算,对其在技术上的可行性进行了探讨,并对其盖板顶在不同填土层容重、不同荷载等级、不同跨径时其强度分析值、板顶临界填土高度值及其变化特点作了分析。

In the design of the bridge culvert in the rebuilding engineering project,whether or not is the originally utilizable open cover plate culvert if not to change its superstructure changed to the blind cover plate culvert directly on filling soil of the original pavement layer? Through the check of the cover plate strength,the article probes into the feasibility of its technology,and analyzes the strength analysis value,the high value of critical filling soil at the top of plate and its variation characteristics of the cover plate top under the different filling soil layer bulk weights,the different load grades and the different spans.