双向六车道

双向六车道连拱隧道设计与施工建议

The design and construction suggestions of bidirectional six lanes double-arch tunnel

大桥桥宽33米，为双向六车道。

The bridge has six expressway lanes in two directions .

大桥全长1093.5米，为双向六车道单层桥，左右线分离式结构。

It is dual-direction , six-lane , single-deck bridge with the separate structure of left and right line .

二环路主线高架桥断面设双向六车道，全宽25米，地面道路同步实施改造。

The25m wide main part of the bridge on Second Ring Road is going to be two-way six-lane .

大桥全长1172米，桥宽30.35米，桥上设有双向六车道，两边还各有一条宽两米的人行道。

The1,172-meter-long and30.35-meter-wide main section of the bridge features a two-way six-lane motor traffic with a two-meter-wide sidewalk flanked on each side .

海南洋浦大桥主桥为（58.5+63+58.5+460+58.5+63+58.5）m七跨双塔双索面的混合式结合梁斜拉桥，通行双向六车道。

The main bridge of Hainan Yangpu Bridge is designed as a hybrid girder cable-stayed bridge with span arrangement ( 58.5 + 63 + 58.5 + 460 + 58.5 + 63 + 58.5 ) m , double pylons and two cable planes , which allows two-way six lanes .

淮安大桥为预应力混凝土双塔双索面斜拉桥，双向六车道，主梁宽度为38.6m，在目前国内同类型已建成的桥梁中宽度位居前列，重点介绍该桥养护管理的主要技术。

The Huai'an Bridge , a prestressed concrete cable-stayed bridge with twin pylons and twin cable planes , has 6 lanes . The main girder is 38.6 m in width . At present , this width is in the front rank of same kind completed bridges in China .

全路主路按全幅双向六车道或八车道设计，路基宽度35米～42.5米，中央隔离带3米，计算行车时速120公里/小时。

The main road of the whole traffic road is designed to have six-road and eight-road with two-sided , the wide range of the base of road is from 35 meters to 42.5 meters , the central area is 3 meters . The speed is 120 miles per hour .

随着国内公路交通建设的飞速发展，在一些经济发达地区，双向四车道乃至双向六车道公路隧道已不能适应交通量日益增长的需求，因此公路隧道的改扩建工程变得迫在眉睫。

With the rapid development of highway infrastructure construction , bi-directional and four lane and even bi-directional and six lane freeway tunnels can not meet the needs of increasing of traffic in some developed area . Reconstruction and extension of freeway tunnel has become a pressing issue .