摘要
横穿开洛高速公路 6 5 .4m ,贯通 9个收费亭人井 ,11段路基 ,按路面形状成中间高 ,两端低的弧形钻孔 ;多级扩孔至孔径 5 0 0mm ,在其中铺设Ф114mm钢管 4根 ,Ф6 0mm钢管 3根。两组这样的管束平行间距始终保持 45 0mm ,按轨迹设计要求 ,准确无误地到达出口。
Through the Kai-Luo highway whose width is 64.5 m, nine work wells and eleven road bases, the holes are drilled. Base on the shape of the road surface, the trail of drilling hole is curve . Its ends are lower and the middle part is higher. Then the diameter of holes is extended to 500mm step by step. Four pipes of 114 mm and three pipes of 60 mm are laid. The distance between the two bundles of pipe is 450 mm and it satisfies the request of the design.
出处
《地质与勘探》
CAS
CSCD
北大核心
2000年第2期53-54,57,共3页
Geology and Exploration
