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我段对于正在修建的三座双曲拱桥(其中有一座系扁壳桥),考虑了地震的因素,在施工中作了按基本裂度为8度的防震加固处理,这三座桥的情况是: 1.平屯线有义新建3—30M双曲拱桥墩台座于砂页岩上,重力式石砌墩台。 2.长五线河头新建1—30M双曲拱桥,重力式石砌桥台,基土为砂粘土,含水量较大,下卧层因未经钻探,情况不详,但根据判断,也为砂粘土或粘土。 3.长屯线高河新建5—20M钢丝网水泥砂浆扁壳桥,钻孔灌注桩高桩墩台,桥墩三根桩,直径1.00M,桩长20.0M,入土深度17M左右,台为8根桩,直径1.00M,桩长11～15M。基土为砂粘土和粘砂土层。
For the three double-curved arch bridges (one of which is a shallow-shrouded bridge) under construction, I considered the earthquake factors. During the construction, we made a seismic strengthening treatment with a basic crack of 8 degrees. The situation of these three bridges Yes: 1. Pingyin Line Yiyi New 3-30M double-curved arch pier pedestal on sand shale, gravity type stone pier. 2. Long five-line riverhead new 1-30M double-curvature arch bridge, gravity type stone abutment, base soil sand clay, large water content, the underlying layer was not drilled, the situation is unknown, but according to the judgment, also Sand clay or clay. 3. Changhe Line Gaohe New 5-20M steel mesh mortar mortar shell bridge, cast-in-place pile high pile piers, three piles of piers, diameter 1.00M, pile length 20.0M, depth of insertion 17M, 8 piles , diameter 1.00M, pile length 11 ~ 15M. The base soil is sand clay and clay sand.