六四梁在拆除既有盖板涵中的应用

The application of military beam in dismantling old slab culvert

结合威海市珠海路地道桥拓宽工程,为了拆除地道桥顶进方向上的既有盖板涵,采用六四军用梁作为支架架起线路,然后采用分段控制松动爆破方法拆除既有盖板涵,实现大跨度新桥顶进,并且利用ANSYS进行了支架的力学分析。

Combined with road widening project of underpass of Zhuhai road, Weihai city,for dismantling old slab culvert which is in the way of new jacked underpass, the military beam was used as support to elevate railway. Then old slab culvert was dismantled by controlled blasting for loosening rock gradually and big span underpass was jacked in. In the paper mechanical analysis of support was done by ANSYS software.