Effects of Inlet Geometry on Hydraulic Performance of Box Culverts
Effects of Inlet Geometry on Hydraulic Performance of Box Culverts
复制标题
进口几何形状对箱涵水力性能的影响
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
S. Stein
中科院分区：
文献类型：
--
作者：
J. S. Jones;K. Kerenyi;S. Stein
南达科他州交通部(SDDOT)每年都会设计和建造许多现浇式(CIP)或现场浇注和预制箱形涵洞结构，使排水可以通过道路下方。CIP箱通常有30度张开的翼壁，预制件有10.16厘米(4英寸)的直翼壁。翼墙和顶板内侧边缘上的斜面。以前对有限数量的单管箱涵进行的研究表明，需要进一步研究以确定(1)多管结构的影响，(2)未淹没出口的损失系数，以及(3)30.48厘米(12英寸)的影响。角圆角与15.24厘米(6英寸)拐角圆角。为了优化这两种箱形涵洞的设计，还需要确定跨高比、斜端条件和最佳边缘条件对典型箱形涵洞安装的影响。
Each year, the South Dakota Department of Transportation (SDDOT) designs and builds many cast-in-place (CIP), or field cast, and precast box culvert structures that allow drainage to pass under roadways. The CIP boxes typically have 30-degree-flared wingwalls, and the precast have straight wingwalls with 10.16-cm (4-in.) bevels on the inside edges of the wingwalls and top slab. Previous research conducted on a limited number of single barrel box culverts indicated that further research was necessary to determine (1) the effects of multiple barrel structures, (2) loss coefficients of unsubmerged outlets, and (3) the effects of 30.48-cm (12-in.) corner fillets versus 15.24-cm (6-in.) corner fillets. In order to optimize the design of both types of box culverts, it was also necessary to determine the effects of span-to-rise ratios, skewed end conditions, and optimum edge conditions on typical box culvert installations.