香王互通式立交施工总结.doc

 施 工 总 结
一 路线走向
香王互通式立交为位于西安绕城公路南段K76+249.789处，三层Y型加单喇叭型一级互通式立交设计，主线上跨西蓝高速公路，西接纺织北路，东与西蓝高速公路相连接，起点桩号为K75+200，终点桩号K76+600，全长1400m。担负两条高速公路的交通转换，是西安市东面的主要入口。
二.工程概况
香王互通式立交：共设计有7座桥梁，即主线桥、A匝道桥、C匝道桥、四座分离式立交桥；主线、匝道共有路基填方245667m3，挖方57866m3，其中8条单向匝道（A、B、C、D、F、G、H、K匝道），1条双向匝道（E匝道）；6个通道，13个涵洞，四条被交线，
主线桥起点桩号为K75+705.96，终点桩号为K76+586.04，全长808.08m，双向六车道，桥面宽35m，与西蓝高速公路上交，交叉角度为50°。桥型布置右半幅2x(5x27)+(2x27+32+27.5+2x24) +(3x24+19.79+26.94+28.43+25.34)+2
x(5x27)m,左半幅 2x(5x27)+(2x27+26.5+3x27)+ (25+27+19.31+27.71+29.74+
18.74+25)+2x(5x27)m。上部结构均为钢筋砼单箱多室现浇连续箱梁。下部结构为摩擦桩基础，埋置式台，柱式墩，共有桩基318根，66座承台（包括系梁），128根桥墩柱，2座埋置式桥台。下部采用直径为Ф1.2 m摩擦桩，砼设计标号为25#；上部采用双幅单箱多室现浇连续箱梁，砼设计标号为30#。
A匝道桥：上部结构为（3X25+27.5+3X25）+5X20+5X24米钢筋砼单箱单室现浇箱梁。下部结构为圆形单柱及多柱式桥墩，埋置双柱式桥台，钻孔灌注桩基础。
C匝道桥：上部结构为4X20米钢筋砼单箱
Shi Federation Results
A route to
Hong Wang Interchange is located in Xi'an city loop highway are K76 +249.789 Department, the three Y-plus single-speaker type 1 interchange design, main line across the West Blue Highway, west of textile North, East and West Blue Highway connects from Stake to K75 +200, end Stake K76 +600, length 1400m. Responsible for two Expressway traffic conversion, is the main entrance to the east of Xi'an.
2. Project Profiles
Hong Wang Interchange: Total design of the seven bridges, the main line of the bridge, A ramp bridge, C ramp bridge, four separate overpass; mainline, ramp total of roadbed fill 245667m3, excavation 57866m3, including eight one-way ramp (A , B, C, D, F, G, H, K ramp), a two-way ramp (E ramp); 6-channel, 13 culverts, four are intersecting lines,
Stake for the bridge from the main line K75 +705.96, end Stake for the K76 +586.04, length 808.08m, two-way six-lane bridge voluminous 35m, and turned over to the West Blue Highway, cross angle of 50 °. Bridge-type arrangement Right Banfu 2x (5x27) + (2x27 +32 +27.5 +2 x24) + (3x24 +19.79 +26.94 +28.43 +25.34) +2
x (5x27) m, left Banfu 2x (5x27) + (2x27 +26.5 +3 x27) + (25 +27 +19.31 +27.71 +29.74 +
18.74 +25) +2 x (5x27) m. Reinforced concrete superstructure are single-box multi-room place continuous box. Substructure is pile foundation, Embedded platform, Shaft Piers, a total of 318 piles, 66 caps (including the tie beam), 128 pier column, two embedded abutment. Ф1.2 m with a diameter of the lower friction piles, concrete design grade of 25 #; upper single box with dual-rate multi-room place box girder, concrete design grade of 30 #.
A ramp bridge: the upper structure (3X25 +27.5 +3 X25) +5 X20 +5 X24-meter reinforced concrete box girder single box single place. Substructure for the round single-column and multi-column pier, embedded two-pole units, bored pile foundation.
Ramp C Bridge: the upper structure of 4X20 meters of reinforced concrete single box