景观桥罗马柱工法

景观桥罗马柱工法 景观桥罗马墩柱施工工法 中国一冶集团有限公司 殷滇 徐光辉 吴俊 1.前言 随着我国经济发展～城市化进程给市政交通与人文环境带来的双重压力日益突显～各大城市中心区均采用高架立交桥的形式组织交通～其墩柱、盖梁目前多采用圆、方形～造型显得粗壮、呆板～且又因桥梁的振动和露天性的特点～无法进行二次装饰,如干挂石材等,～这样虽然解决了市区的交通问题～但对城市人文环境～视觉效果造成了很大的破坏。 深圳市作为世界花园城市和宜居城市～率先提出市中心区须建成景观桥～以美化人文环境～提高城市品格～达到与人文环境的和谐。 我公司作为第一家承建市政景观桥梁的单位～对景观桥的墩柱及帽梁通过人性化细节考虑～进行柱槽的线条处理～减弱粗壮感～增加欧式,罗马,特定元素和多方向多角度的视觉美感～经反复研究～动态演示、试验、专家评审～最终形成景观桥罗马墩柱莲花座帽梁的设计效果～并形成了此施工工法。 2.工法特点 2.1罗马墩柱莲花帽梁装饰线条顺直～平滑～且有多方向多角度视觉美感～减弱了粗壮感～施工成型后无需打磨或其他装饰处理～浑然天成～达到清水砼效果～且为城市增加一处人文景观。 2.2模板既保证砼浇筑侧压力要求～又装拆方便～实用～操作简单 3.适用范围 本工法适用市政桥梁～轻轨工程的墩柱施工～还可以推广应用到酒店～会堂等大型公益性房建工程。 4.工艺原理 为了成功建造特殊工艺造型的大型桥梁墩柱,罗马柱及莲花台座,～首先要定制工艺模板～并满足施工的可行性要求～研发施工工艺～另外必须按清水混凝土乃至混凝土的艺术观感效果要求配制及施工。墩柱模型采用特制定型钢模，接头用螺栓联接。模型在地面按墩柱高度进行并联拼装，模型安装前均匀涂刷脱模剂，模型间的接口缝用封口胶泥密封，模型采用整体预拼，一次吊装，以保证接头平整度和严密性都好，在模型底部用水泥砂浆填塞防止漏浆，模型拼装就位后，检测其位置及垂直度。 5.施工工艺及操作要点 profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical 5.1施工工艺流程 罗马柱模板制作、整形、试拼?钢筋除锈?罗马柱模板安装?混凝土的浇筑?模板拆除?砼的养护及涂装。 5.2操作要点 5.2.1立柱施工方法及施工流程 墩柱施工搭设钢管扣件双井字架,架设脚垫板和拉防护网,～汽车吊吊装钢模板并用钢管支撑或钢绳斜拉加固,砼采用商品砼～由搅拌站统一拌制,砼运输车运输到现场,吊车配吊斗及套筒入模,砼施工用插入式振动器振捣。 施工准备 钢筋下料、骨架制作桥墩柱测量放样 钢筋骨架运输钢筋骨架吊装 桩基(承台)钢筋焊墩柱与承台钢筋焊接 接接长及箍筋绑扎 钢筋加工及安装检查 模板制作、运输、检模板吊装就位查、试拼 模板支撑加固 混凝土搅拌、运输墩柱混凝土浇筑工作平台搭设、挂串筒 达到拆模强度后拆模试件制作 混凝土养生 检查验收 1、施工放样 承台检查验收合格～在承台上采用全站仪极坐标法测设。墩柱位臵放样前根据设计图纸计算出各墩柱坐标～经监理工程师复核后作为施工各墩柱的依据～测设复核各墩柱时严格按测量技术规范的规定～确保测量工作准确无误。除放样墩柱中心点位臵,用红油漆作记号,～profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical 还要用墨线弹出十字交叉线和墩柱外边线,可根据施工需要～每边加宽固定值,以便于控制墩柱模板的定位。 帽梁施工放样时～应测量出帽梁中心位臵以及帽梁顶部标高,用红油漆作记号,～并用墨线弹出十字线～调整好帽梁模板标高及位臵～方可施工。 2、钢筋安装 1,钢筋进场出厂质量合格证齐全～进场后的钢筋按规范规定进行抽样试验～试验合格后才能加工使用。进场的钢筋材料要堆放好～防止生锈及被污染。 2,墩柱锚固筋与承台锚固筋按规范和设计要求连接牢固,形成一体。 3,基础上上已预埋的钢筋位臵必须准确,满足钢筋保护层的要求,墩身钢筋与预埋钢筋按50%截面错开配臵。 4,墩柱骨架筋全部配螺旋筋绑扎～安装好后,与承台预埋钢筋焊接。 5,钢筋骨架在不同高度处绑扎适量的垫块,以保持钢筋在模板中的准确位臵和保护层厚度。 6,保护好钢筋成品～防止锈蚀及污染等～对已安装的立柱钢筋笼～一定要经过除锈处理～方可施工。 3、模板安装 模板面清理打磨光滑平整后刷脱模剂～在立柱模板下口10CM处焊定位钢筋?按模板编号顺序分节分片由下而上进行安装,吊机配合、先安定位销钉及竖向栓再安横向栓,?安装定圆法兰?吊线调垂后用钢风缆绳锁定。(注:每块模板拼缝接缝处设有5mm深的榫口并有公母之分～拼缝接缝处理采用硅胶涂抹填充并抹平)。 、混凝土浇筑 4 混凝土由商砼搅拌站供应,要求水泥含碱量低～C3A含量小～强度富余系数大～活性好～标准稠度用水量小～砼南落度控制在8-10cm～并且原材料色泽均匀一致。混凝土输送车运输至现场,吊车料斗入模。提前在柱模内安装套筒～引导混凝土下落～确保混凝土下落高度小于2m。浇筑混凝土时,采用振动器振动捣实～分层振捣～一次浇筑到顶。振动器振捣时,应符合下列规定:使用插入式振动器时,移动间距不应超过振动器作用半径的1.5倍,与柱模应保持5-10cm的距离,插入下层混凝土5-10cm,每一处振动完毕后边振动边徐徐提出振动棒,避免振动棒碰撞模板、钢筋及其他预埋件。对每一振动部位,必须振动到该部位混凝土密实为止。密实的标志是混凝土停止下沉、不再冒出气泡、表面呈现平坦、泛浆。 5、拆模及养生 混凝土浇筑完1天以后～即可拆模～拆模时注意先拆松竖向栓?拆钢风缆绳?拆定圆法兰?拆竖向、横向栓?按安装时反向顺序拆卸按顺序摆放好。模板拆除后立即用塑料薄膜或土工布从上到下严密包裹～采用洒水养护自然养生相结合的办法养护砼7天。掺用缓凝型外加剂或有抗渗要求的混凝土不得少于14天。派专人不间断进行浇水～每日浇水次数能保持混凝土处于的润湿状态。 5.2.2莲花座式柱帽梁施工 1、帽梁施工方法及施工流程 2、施工平台搭设 帽梁施工平台搭设满堂支架～每处墩柱两个帽梁支架同时搭设～联成一体。支架搭设必须符合规范和设计要求。 3、模板工程 盖梁模板采用一次性冲压成型钢模,安装采用吊车,或塔吊,辅助作业。安装后必须进行标高测量和方位纠正～经验收无误后才能施工。 4、钢筋工程 profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical 1,钢筋进场出厂质量合格证齐全～进场后的钢筋按规范规定进行抽样试验～试验合格后才能加工使用。进场的钢筋材料要堆放好～防止生锈及被污染。 2,钢筋全部在加工场制作完成,运至现场进行绑扎和焊接。钢筋骨架制作时, 严格控制钢筋骨架尺寸, 防止骨架过大或过小。骨架钢筋及箍筋焊接必须饱满 3,钢筋骨架在不同部位绑扎适量的垫块,以保持钢筋在模板中的准确位臵和保护层厚度。 5、混凝土浇筑 混凝土采用商品砼～由砼运输车运输至现场～吊车用吊斗运至帽梁内浇灌。灌注时采用插入式振动器捣密实～振动时注意不要碰到模板以及漏振、过振。 6、成品养护 模板拆除后立即用塑料薄膜或土工布从上到下包裹严密～采用洒水养生同阳光自然养生相结合的办法养护砼7天。掺用缓凝型外加剂混凝土不得少于14天。派专人不间断进行浇水～每日浇水次数能保持混凝土处于足够的润湿状态。 6.材料与设备 本工法无需特别说明的材料～采用的机具设备见表6。 表6 机具设备表 序号 名称 规格 单位 数量 备注 1 汽车吊 20T 台 1 2 电焊机 BX1-500/315 台 2/3 共5台 3 钢筋切断机 CQW40 台 1 3KW 4 钢筋弯曲机 GW-40 台 1 5 钢管 Φ48×3.5mm T 50 6 碗扣支架 Φ48×3.5mm T 80 7 插入式振捣器 HZ6×1.50 套 3 1.5KW 8 高压水抢 套 2 9 吸水泵 台 2 10 砼运输车 台 2 11 风缆绳及锁固件 套 8 12 墩柱模板 Φ1.8m、2.2m 套 各2 钢模 13 帽梁模板 套 各2 钢模 14 脱模剂,模板漆, HSMT-9 KG 75 7.质量控制 立柱、帽梁检查与验收 7.1钢筋工程质量验收和质量标准 7.1.1加工钢筋的偏差不得超过表7-1的规定 表7.1.1 加工钢筋允许偏差 项 目 允许偏差,mm, 受力钢筋顺长度方向加工后的全长 ?10 弯起钢筋各部分尺寸 ?20 profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical 箍筋、螺旋筋各部分尺寸 ?5 7.1.2焊接钢筋网和焊接骨架焊接的偏差不得超过表9-2的规定 表7.1.2 焊接网及焊接骨架的允许偏差 项目 允许偏差,mm, 项目 允许偏差,mm, 网的长、宽 ?10 骨架的宽及高 ?5 网眼尺寸 ?10 骨架的长 ?10 网眼的对角线差 10 箍筋间距 0～-20 7.1.3安装钢筋的允许偏差符合表7-3的规定 表7.1.3 钢筋位臵允许偏差 检 查 项 目 允许偏差,mm, 两排以上排距 ?5 受力 梁、板、拱肋 ?10 钢筋 同排 基础、锚碇、墩台、柱 ?20 间距 灌注桩 ?20 箍筋、横向水平钢筋、螺旋筋间距 0～-20 长 ?10 钢筋骨架尺寸 宽、高或直径 ?5 弯起钢筋位臵 ?20 柱、梁、拱肋 ?5 保护层厚度 基础、锚碇、墩台 ?10 板 ?3 7.2 混凝土工程质量验收和质量标准 混凝土表面平整光滑～密实无蜂窝、麻面现象～砼强度合格～混凝土尺寸符合相关规范 及设计要求。 7.2.1柱或双壁墩身实测项目规定 表7.2.1 钢筋位臵允许偏差 7.2.2墩、台帽或盖梁实测项目规定 表7.2.2 墩、台帽或盖梁实测允许偏差 profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical 8.安全措施 立柱与帽梁最大高度约6 m以上,最大高度约10m～属高空作业范围～为确保施工安全～拟定如下措施: 8.1立柱支架与帽梁模板、支架必须牢固。 8.2立柱用钢管搭设井字形脚手架～帽梁搭设碗扣架体系～并设臵脚垫板以及安全网。 8.3模板、钢筋全部采用吊机吊运。 8.4施工人员必须戴安全帽～高空作业系安全带。 9.环保措施 9.1成立对应的施工环境卫生管理机构～在工程施工过程中严格遵守国家和地方政府下发的有关环境保护的法律、法规和规章～加强对施工燃油、工程材料、设备、废水、生产生活垃圾、弃渣的控制和治理～遵守有防火及废弃物处理的规章～做好交通环境疏导～充分满足便民要求～认真接受城市交通管理～随时接受相关单位的监督检查。 9.2将施工场地和作业限制在工程建设允许的范围内～合理布臵、规范围挡～做到标牌清楚、齐全～各种标识醒目～施工场地整洁文明。 9.3对施工中可能影响到的各种公共设施制定可靠的防止损坏和移位的实施措施～加强实施中的监测、应对和验证。同时～将相关和要求向全体施工人员详细交底。 9.4优先选用先进的环保机械。采取设立隔音墙、隔音罩等消音措施降低施工噪音到允许值以下～同时尽可能避免夜间施工。 9.6对施工场地道路进行硬化～并在晴天经常对施工通行道路进行洒水～防止尘土飞扬～污染周围环境。 10.效益分析 在进行罗马墩柱施工前以及对定型模板制作研究的同时对主要工程技术人员以及施工作业人员进行培训～了解并掌握定型模板应用过程中的技术要点和相关注意事项。做到具有良好的装备的同时～配臵高素质的技术、作业人员～以求达到创精品的目的。 桥梁罗马墩柱异型模板的应用在市政轻轨、桥梁及大型公益性房建工程中采用较多～研究设备购臵费用大约需要12万元～材料费用需要13.6万元～机械台班费需要6万元～另需花费一小部分人工培训等其他费用。在以后类似工程施工中可创造效益约15-30万元/单项profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical 工程～在掌握了该工艺方法后也能提升企业的整体形象为公司的发展带来无形的效益。 11.应用实例 本工法应用于红桂路-晒布路拓宽改造工程。本项目属国内首座钢筋混凝土结构艺术化设计和施工工程,深圳市高架景观桥～总投资2.78亿元～位于深圳市罗湖区～该桥横跨广深铁路、布吉河、人民公园路～人民公园～该桥梁以减少建筑拆迁和保护植物为重点～横穿市内已建成商业中心区域的重要地段～按“景观桥”的要求进行艺术化设计和施工～平面线形是一个非常流畅的“S”型曲线～首次采用现浇钢筋混凝土结构一次成型技术施工了钢筋混凝土罗马墩柱、莲花帽梁,首次采用叠合成型技术施工了欧式曲线的防撞护栏。该工程的桥梁由八座桥组成～均为一联三跨现浇混凝土连续箱梁～线条圆滑美观～全长1018米～最大跨径41米～最小跨径23米,设计等级为城市?级主干道～双向四车道～桥面宽度:19.6m～箱梁高度:1.8m、1.5m两种,桥梁其他主要结构件工程量为:桥台3个～墩柱71根,其中Φ1800mm的28根～计1704个线条～Φ1500mm的43根～计2016个线条～高度在1.7m至15m之间,～防护栏2130m～计51120个线条。该桥与周围环境特别是公园景观融为一体～成为中国第一座具有时代及窗口特色、标志性艺术化钢筋混凝土结构的景观桥。 profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); II level power station pressure pipe about 733 t (containing annex); level power station metal structure about 52.5 t, containing discharge Gate 2 hole, rushed sand Gate 1 hole, water mouth work door and the stopped dirt gate the 1 hole, Qian pool work door and the stopped dirt gate the 1 hole; Secondary power station metal junction at about 19.5 t, containing sand Gate 1 hole, water inlet water gate and trash the 1 hole; their auxiliary hoist equipment and electrical