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1、Precautions on common defects of CRTS-I Non-Ballasted track construction成渝客运成渝客运专线监理三理三标CRTS I 型双型双块块式无式无砟轨砟轨道道施工常施工常见见缺失与本卷缺失与本卷须须知知1Basic concept must keep in mind必需常记在心的根本观念1.Accuracy / Tolerance requirement: mm evenmm2.施工精度与误差要求：毫米甚至毫米以下，施工精度与误差要求：毫米甚至毫米以下，3.失之毫厘差之千里失之毫厘差之千里4.3. Working and insp
2、ecting in details5.细化施工工艺与检查：多检查并及时整改才干细化施工工艺与检查：多检查并及时整改才干少返工。魔鬼藏在细节里少返工。魔鬼藏在细节里6.Standardized construction procedures7.规范化施工工序：谋定而后动，一次到位规范化施工工序：谋定而后动，一次到位8.一步错全盘皆输一步错全盘皆输2Protection on CPIII Bench marksCPIII 网控制点的网控制点的维护维护No protection cap applied and Mortar clued onto bolt thread预埋的预埋的CPIII 螺栓孔未
3、加螺栓孔未加防护盖防护盖,水泥砂浆粘附孔水泥砂浆粘附孔内螺纹内螺纹3Protection on CPIII Bench marksCPIII 网控制点的网控制点的维护维护No clearance between CPIII pole and backfilling layerCPIII 控制点立柱与路基回填控制点立柱与路基回填资料之间资料之间,未坚持净空未坚持净空4Protection on CPIII Bench marksCPIII 网控制点的网控制点的维护维护Scratch found on the CPIII poleCPIII 控制点立柱外表存控制点立柱外表存在碰撞痕迹在碰撞痕迹56
4、Protection on CPIII Bench marksCPIII 网控制点的网控制点的维护维护Out forcing on the CPIII pole施加外力在施加外力在CPIII 控制控制点立柱上点立柱上Preparation and takeover the Deck furniture桥面系附属构件的预备与移交任务桥面系附属构件的预备与移交任务Uncleaned formwork plugs on the derailing wall footing防撞墙墙脚防止漏浆的木塞没有去除干净，墙防撞墙墙脚防止漏浆的木塞没有去除干净，墙脚呈现烂根情形脚呈现烂根情形Uncleaned v
5、arious concrete leaked from the derailing wall footing防撞墙墙脚漏浆的废渣没有去除干净，墙脚呈防撞墙墙脚漏浆的废渣没有去除干净，墙脚呈现烂根情形现烂根情形78Preparation and takeover the Deck furniture桥面系附属构件的预备与移交任务桥面系附属构件的预备与移交任务OCS foundation was cast in two pieces接触网根底被分割为接触网根底被分割为两次浇筑，非一体成两次浇筑，非一体成型浇筑型浇筑9Preparation and takeover the Deck furnitu
6、re桥面系附属构件的预备与移交任务桥面系附属构件的预备与移交任务Expansion joint seams of precast parapet were not match to the inner wall of CIS parapet，then the joint seams broken due to lack of free space for the girder deflection现浇现浇A墙的伸缩缝与预墙的伸缩缝与预制遮板的伸缩缝未对制遮板的伸缩缝未对齐，因梁体挠度变化齐，因梁体挠度变化呵斥呵斥A墙与遮板无伸缩墙与遮板无伸缩空间而积压破损空间而积压破损Multi constr
7、uction properties arrangement同一施任务业面多种作业工程与工序的安排同一施任务业面多种作业工程与工序的安排Precast concrete fence installation also ongoing预制混凝土栅栏也在安装预制混凝土栅栏也在安装Unfinished concrete foundation of Electricity pole接触网根底尚未完成接触网根底尚未完成Wooden sleepers installed for track way of Gantry Crane 龙门吊行走钢轨的枕木已安装龙门吊行走钢轨的枕木已安装到位到位Temporary
8、 electricity cable暂时用电的电缆线不规范暂时用电的电缆线不规范10Roughness treatment on Bridge deck桥桥面的面的凿凿毛任毛任务务Chipping the bridge deck by pneumatic pick, chipping proportion less than specified 75%运用风镐凿毛，凿毛面积未达运用风镐凿毛，凿毛面积未达75%的规定的规定Chipping the bridge deck by concrete scrubber, but done in wrong methodology运用凿毛机凿毛，但方法错
9、误使得梁面构运用凿毛机凿毛，但方法错误使得梁面构成犹如钻掘产生的孔洞成犹如钻掘产生的孔洞11Roughness treatment on Bridge deck桥面的凿毛任务桥面的凿毛任务Roughness treatment applied on the waterproofing area设计上需求铺设防水层设计上需求铺设防水层的位置也进展了凿毛的位置也进展了凿毛12Roughness treatment on Bridge deck桥面的凿毛任务桥面的凿毛任务Uncleaned waste hardened concrete after roughness treatment桥面上浇置桥
10、面上浇置AB墙时遗留硬墙时遗留硬固的混凝土残渣未清理干固的混凝土残渣未清理干净，直接在残渣上凿毛净，直接在残渣上凿毛13Tool rail and steel frame轨排框架与工具轨轨排框架与工具轨No timber installed between tool rail and steel frame during stockpiling轨排框架采硬碰硬的直接堆轨排框架采硬碰硬的直接堆叠，未运用方木隔离叠，未运用方木隔离14Tool rail and steel frame轨排框架与工具轨轨排框架与工具轨Deformation and disfeatured tool rail工具轨损伤
11、与变形工具轨损伤与变形15Expansion joint seal and steel channel installation伸缩缝耐候型钢与橡胶密封带的安装伸缩缝耐候型钢与橡胶密封带的安装16Exposure of the steel channel causing the gap distance different from concrete base layer伸缩缝耐候型钢突出，伸缩缝耐候型钢间隙与伸缩缝耐候型钢突出，伸缩缝耐候型钢间隙与底座板间隙不同底座板间隙不同Designed gap distance of the expansion joint and concrete b
12、ase layer伸缩缝耐候型钢突出，伸缩缝耐候型钢间隙与伸缩缝耐候型钢突出，伸缩缝耐候型钢间隙与底座板间隙不同底座板间隙不同Expansion joint and steel channel installation伸缩缝耐候型钢与橡胶密封带的安装伸缩缝耐候型钢与橡胶密封带的安装Pre-installed expansion joint seal collecting waste materials on it and difficult to clean预先安装的伸缩缝橡胶密封预先安装的伸缩缝橡胶密封带在施工过程中会有各种废带在施工过程中会有各种废渣堆集，日久后难以清理渣堆集，日久后难以清
13、理Uneven cast concrete partition wall of the electricity channel intruding or away from expansion joint桥面电缆槽及桥面电缆槽及AB墙，部分安墙，部分安坐在伸缩缝橡胶密封带上，坐在伸缩缝橡胶密封带上，部分未将耐候型钢嵌入部分未将耐候型钢嵌入17Expansion joint and steel channel installation伸缩缝耐候型钢与橡胶密封带的安装伸缩缝耐候型钢与橡胶密封带的安装Unbalanced tensile forcing on the expansion joint
14、seal and causing deformation伸缩缝耐候型钢安装不对称，伸缩缝间隙未思伸缩缝耐候型钢安装不对称，伸缩缝间隙未思索安装橡胶密封带时的环境温度与橡胶密封带索安装橡胶密封带时的环境温度与橡胶密封带的尺寸匹配，橡胶密封带扭曲变形的尺寸匹配，橡胶密封带扭曲变形Design requirement of the expansion seal installation设计要求的伸缩缝橡胶密封带安装规定设计要求的伸缩缝橡胶密封带安装规定18Expansion joint and steel channel installation伸缩缝耐候型钢与橡胶密封带的安装伸缩缝耐候型钢与橡胶密
15、封带的安装Incompletely inserted expansion joint seal伸缩缝橡胶密封的嵌条，未伸缩缝橡胶密封的嵌条，未完全嵌入耐候型钢的卡槽内完全嵌入耐候型钢的卡槽内19Geotextile installation of Track slab construction无砟轨道轨道板施工无砟轨道轨道板施工-土工布隔离层安装土工布隔离层安装Late removed fixing nail串钉拔除时机太晚串钉拔除时机太晚20Rebar installation of Track slab construction无砟轨道轨道板施工无砟轨道轨道板施工-钢筋安装钢筋安装Lack
16、 accurate of fabrication angle and sizes 裁切尺寸与加工弯折角度的精裁切尺寸与加工弯折角度的精度不良度不良21Rebar installation of Track slab construction无砟轨道轨道板施工无砟轨道轨道板施工-钢筋安装钢筋安装Defective insulation绝缘不良绝缘不良22Rebar installation of Track slab construction无砟轨道轨道板施工无砟轨道轨道板施工-钢筋安装钢筋安装Lack of concrete cover混凝土维护层缺乏混凝土维护层缺乏23Concrete cu
17、ring of Track slab construction无砟轨道轨道板施工无砟轨道轨道板施工-混凝土养护混凝土养护Lack of continue moistening未坚持混凝土潮湿的延续性未坚持混凝土潮湿的延续性2425Suggestion of construction optimization施工优化的建议施工优化的建议-桥面板凿毛时的防尘桥面板凿毛时的防尘Install cover and vacuum on the concrete scrubber to prevent dust pollution安装防护罩及吸尘安装防护罩及吸尘机在凿毛机上，及机在凿毛机上，及时将凿毛时的
18、尘土时将凿毛时的尘土搜集在吸尘机的集搜集在吸尘机的集尘袋内，防止凿毛尘袋内，防止凿毛时的尘土飞扬时的尘土飞扬Suggestion of construction optimization施工优化的建议施工优化的建议-底座板施工底座板施工Water stop wall挡水台Starter bar for Water stop wall挡水台预留筋Starter steel groove for Expansion joint seal伸缩缝橡胶带耐候型钢Install starter bar near expansion joint end of the concrete base layer
19、to prevent crack occurred at the joint between the base concrete layer and water stop wall底座板施工时在梁端伸缩缝底座板施工时在梁端伸缩缝处的左右两侧安装挡水台的处的左右两侧安装挡水台的接茬筋，防止未来因列车行接茬筋，防止未来因列车行走时的震动与温差，呵斥底走时的震动与温差，呵斥底座板与挡水台接缝处的开裂座板与挡水台接缝处的开裂2627Suggestion of construction optimization施工优化的建议施工优化的建议-轨道板钢筋问题轨道板钢筋问题Designed upper lay
20、er and lower layer rebar were in same size and length, the hooks joint together became complicated at corner. It causing different concrete cover on side and the rebar cage will not be quadrated shape. Especially 4 hooks fixed at corners.设计钢筋笼上下层钢筋长设计钢筋笼上下层钢筋长度一样，因此在轨道板周度一样，因此在轨道板周围的立面弯钩都会出现相围的立面弯钩都
21、会出现相互关扰，特别是四个角落互关扰，特别是四个角落钢筋弯钩的绑扎变得极其钢筋弯钩的绑扎变得极其复杂，呵斥同一根钢筋有复杂，呵斥同一根钢筋有不同的维护层的景象；且不同的维护层的景象；且钢筋笼整体无法构成方正钢筋笼整体无法构成方正的主体的主体Suggestion of construction optimization施工优化的建议施工优化的建议-轨道板钢筋调整方案轨道板钢筋调整方案-128Modify all the rebar to two different lengths as upper layer rebar longer than lower layer 一致将钢筋笼上下层钢筋长度
22、调整一致将钢筋笼上下层钢筋长度调整成上层筋较下层筋长，以上包下的成上层筋较下层筋长，以上包下的方式构成箍方式构成箍Plan view 平面效果模拟平面效果模拟Vertical view 立面效果模拟立面效果模拟3D view 立体效果模拟立体效果模拟Longitudinal bar 纵向钢筋纵向钢筋Horizontal bar 横向钢筋横向钢筋Suggestion of construction optimization施工优化的建议施工优化的建议-轨道板钢筋调整方案轨道板钢筋调整方案-229Combine the upper and lower layer horizontal bar to
23、 be closed stirrup if there is no problem with the electricity insulation between each single one of them and agreed by designer. It could save huge cost on material and installation请设计单位研讨，在请设计单位研讨，在无单一组上下层钢筋无单一组上下层钢筋绝缘必要性的前提下，绝缘必要性的前提下，将横向钢筋笼上下层将横向钢筋笼上下层改为由单一根钢筋弯改为由单一根钢筋弯折成的闭合箍，可省折成的闭合箍，可省下许多本钱下许多
24、本钱Fix the overlap joint by two insulation clips 闭合搭接处运用两个绝缘卡闭合搭接处运用两个绝缘卡夹固定夹固定Three hooks remained at corners from four轨道板各个角落的弯钩可因轨道板各个角落的弯钩可因此由四个减少到三个此由四个减少到三个30Suggestion of construction optimization施工优化的建议施工优化的建议-防水层基底防水层基底-底座板根部底座板根部Base concrete layer底座板底座板Bridge deck桥面板桥面板50mm5mm Flashing5mm泛
25、水泛水Waterproofing membrane防水层防水层Make footing corner as smooth curve prevent void kept under waterproofing将底座板的根部做成圆弧可有效保证防水将底座板的根部做成圆弧可有效保证防水层密贴防止防水层下气泡层密贴防止防水层下气泡Suggestion of construction optimization施工优化的建议施工优化的建议-防水层基底防水层基底-底座板模板底座板模板31谢谢倾听听敬敬请指教指教hanks for your attention32CYPDL Supervision Lot 3成渝客运成渝客运专线监专线监理理3标标 - 高生高生华华
