Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for laying ballastless track on large-span bridge
The invention discloses a construction method for laying a ballastless track on a large-span bridge. The construction method comprises the steps that a bridge theoretical model is established, and a linear change rule is analyzed; constructing a bridge floor accessory structure, and checking and accepting a beam surface line shape; carrying out full-bridge preloading, correcting a theoretical model and adjusting a cable; setting-out construction of the base plate is controlled through the relative height difference; roughly paving the track plate, performing CPIII general measurement, and finely adjusting the track plate by adopting absolute elevation; self-compacting concrete is poured, and the self-compacting concrete ballasting load is unloaded during construction; steel rails are laid, temperature loads are compensated, and the line shape is adjusted through the fastener adjusting amount. Relative height difference control and absolute coordinate control are combined in the construction process, and each working procedure in the construction process is accurately controlled; in order to solve the problem of multi-valued coordinates of the CPIII control network on a bridge, a new datum point is laid during construction to control construction, and a method for rapidly measuring the CPIII control network is provided, so that the laying of a ballastless track and the track surface line shape after the bridge is formed can meet the requirements.
本发明公开了一种大跨度桥上铺设无砟轨道施工方法，包括建立桥梁理论模型，分析线形变化规律；桥面附属结构施工，验收梁面线形；全桥预加载，修正理论模型并调索；利用相对高差控制底座板放样施工；粗铺轨道板并进行CPⅢ通测，采用绝对高程精调轨道板；灌注自密实混凝土，施工同时卸载自密实混凝土压重荷载；铺设钢轨并补偿温度荷载，利用扣件调整量调整线形。本发明在施工过程中将相对高差控制和绝对坐标控制相结合，精准控制施工过程中的每一道工序；针对桥上CPIII控制网坐标多值性问题，在施工时布设了新的基准点控制施工，并提出了一种CPIII控制网快速测量的方法，可保证无砟轨道的铺设及成桥后的轨面线形满足要求。
Construction method for laying ballastless track on large-span bridge
The invention discloses a construction method for laying a ballastless track on a large-span bridge. The construction method comprises the steps that a bridge theoretical model is established, and a linear change rule is analyzed; constructing a bridge floor accessory structure, and checking and accepting a beam surface line shape; carrying out full-bridge preloading, correcting a theoretical model and adjusting a cable; setting-out construction of the base plate is controlled through the relative height difference; roughly paving the track plate, performing CPIII general measurement, and finely adjusting the track plate by adopting absolute elevation; self-compacting concrete is poured, and the self-compacting concrete ballasting load is unloaded during construction; steel rails are laid, temperature loads are compensated, and the line shape is adjusted through the fastener adjusting amount. Relative height difference control and absolute coordinate control are combined in the construction process, and each working procedure in the construction process is accurately controlled; in order to solve the problem of multi-valued coordinates of the CPIII control network on a bridge, a new datum point is laid during construction to control construction, and a method for rapidly measuring the CPIII control network is provided, so that the laying of a ballastless track and the track surface line shape after the bridge is formed can meet the requirements.
本发明公开了一种大跨度桥上铺设无砟轨道施工方法，包括建立桥梁理论模型，分析线形变化规律；桥面附属结构施工，验收梁面线形；全桥预加载，修正理论模型并调索；利用相对高差控制底座板放样施工；粗铺轨道板并进行CPⅢ通测，采用绝对高程精调轨道板；灌注自密实混凝土，施工同时卸载自密实混凝土压重荷载；铺设钢轨并补偿温度荷载，利用扣件调整量调整线形。本发明在施工过程中将相对高差控制和绝对坐标控制相结合，精准控制施工过程中的每一道工序；针对桥上CPIII控制网坐标多值性问题，在施工时布设了新的基准点控制施工，并提出了一种CPIII控制网快速测量的方法，可保证无砟轨道的铺设及成桥后的轨面线形满足要求。
Construction method for laying ballastless track on large-span bridge
一种大跨度桥上铺设无砟轨道施工方法
YANG RONGSHAN (Autor:in) / LI JUN (Autor:in) / LIU CHENGLONG (Autor:in) / YANG XUEFENG (Autor:in) / SUN HONGBIN (Autor:in) / QU SHUFENG (Autor:in) / GUO YUPENG (Autor:in) / CHEN XIAOHUI (Autor:in) / XING SHUKE (Autor:in) / WANG ZHAOGANG (Autor:in)
03.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
/
E01D
BRIDGES
,
Brücken
/
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
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