一、概况 法拉泥石流位于龙川河峡谷地段的阿南庄至龙骨甸区间。线路为了克服航距短,河床坡度大的自然条件,采用螺旋形展线通过。(详见图一),桥跨为两孔23.8米钢筋混凝土梁,线坡为8.6％,全桥在450米半轻的圆曲线内。成端台台尾距桐模甸钢梁桥昆台台尾300米,其中200 First, the overview Fa La debris flow is located in Longchuan Gorge Lot of Ananzhuang to Longyudan range. Line in order to overcome the short distance, riverbed gradient of natural conditions, the use of spiral line through. (See Figure 1 for details.) The bridge is a two-hole 23.8-meter-long reinforced concrete beam with a line slope of 8.6%. The bridge is within a semi-light curve of 450 meters. Into the end of tai tai tongmeng steel beam bridge kun tai stage 300 meters, of which 200