A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for renovating open-joint grouting damage of CRTS I-type double-block ballastless track sleeper
The invention relates to a method for renovating open-joint grouting damage of a CRTS I-type double-block ballastless track sleeper. The method comprises the following steps: planting steel bars and anchoring roadbed slabs on two sides of the damaged sleeper; polishing the top surface of the roadbed slab; installing a WJ-7 type fastener embedded sleeve; chiseling away roadbed slab concrete at thediseased sleeper; pouring grouting materials into the ballast bed pit; removing the original WJ-8 type fastener, and installing the WJ-7 type fastener for transition; dismounting a WJ-7 type fastenerfor transition; installing an original WJ-8 type fastener; performing fine adjustment of steel rail. The stress form of the ballastless track structure does not need to be changed, and the stress stability of the ballastless track after renovation is guaranteed. The fasteners do not need to be repeatedly adjusted so that the maintenance workload is reduced, and the empty hanging damage of the sleeper with limited fastener adjusting capacity is treated; the used grouting material has high flowability, micro-expansibility and good bonding strength, after concrete of a roadbed slab at the heightof the sleeper is chiseled away, gaps of new and old joint parts can be thoroughly eliminated by pouring the grouting material, the periphery of the sleeper is effectively and completely filled, and the treatment is thorough according to the reasons of diseases.
一种CRTS I型双块式无砟轨道轨枕离缝冒浆病害的整治方法，包括：将病害轨枕两侧道床板进行植筋锚固；将道床板顶面进行打磨；安装WJ‑7型扣件预埋套管；凿除病害轨枕处道床板混凝土；往道床坑内灌注灌浆材料；拆除原有WJ‑8型扣件，安装WJ‑7型扣件进行过渡；拆除过渡用的WJ‑7型扣件；安装原有的WJ‑8型扣件；对钢轨进行精调。本发明不需改变无砟轨道结构受力形式，保证整治后无砟轨道受力稳定性。不需反复调节扣件，减小养护维修工作量，对扣件调整能力有限的轨枕空吊病害进行整治；所用灌浆材料具有较高流动性、微膨胀性和良好粘结强度，将轨枕高度道床板混凝土凿除后，灌注该材料可彻底消除新旧结合部缝隙，有效完整填充轨枕四周，针对病害产生原因，整治彻底。
Method for renovating open-joint grouting damage of CRTS I-type double-block ballastless track sleeper
The invention relates to a method for renovating open-joint grouting damage of a CRTS I-type double-block ballastless track sleeper. The method comprises the following steps: planting steel bars and anchoring roadbed slabs on two sides of the damaged sleeper; polishing the top surface of the roadbed slab; installing a WJ-7 type fastener embedded sleeve; chiseling away roadbed slab concrete at thediseased sleeper; pouring grouting materials into the ballast bed pit; removing the original WJ-8 type fastener, and installing the WJ-7 type fastener for transition; dismounting a WJ-7 type fastenerfor transition; installing an original WJ-8 type fastener; performing fine adjustment of steel rail. The stress form of the ballastless track structure does not need to be changed, and the stress stability of the ballastless track after renovation is guaranteed. The fasteners do not need to be repeatedly adjusted so that the maintenance workload is reduced, and the empty hanging damage of the sleeper with limited fastener adjusting capacity is treated; the used grouting material has high flowability, micro-expansibility and good bonding strength, after concrete of a roadbed slab at the heightof the sleeper is chiseled away, gaps of new and old joint parts can be thoroughly eliminated by pouring the grouting material, the periphery of the sleeper is effectively and completely filled, and the treatment is thorough according to the reasons of diseases.
一种CRTS I型双块式无砟轨道轨枕离缝冒浆病害的整治方法，包括：将病害轨枕两侧道床板进行植筋锚固；将道床板顶面进行打磨；安装WJ‑7型扣件预埋套管；凿除病害轨枕处道床板混凝土；往道床坑内灌注灌浆材料；拆除原有WJ‑8型扣件，安装WJ‑7型扣件进行过渡；拆除过渡用的WJ‑7型扣件；安装原有的WJ‑8型扣件；对钢轨进行精调。本发明不需改变无砟轨道结构受力形式，保证整治后无砟轨道受力稳定性。不需反复调节扣件，减小养护维修工作量，对扣件调整能力有限的轨枕空吊病害进行整治；所用灌浆材料具有较高流动性、微膨胀性和良好粘结强度，将轨枕高度道床板混凝土凿除后，灌注该材料可彻底消除新旧结合部缝隙，有效完整填充轨枕四周，针对病害产生原因，整治彻底。
Method for renovating open-joint grouting damage of CRTS I-type double-block ballastless track sleeper
一种CRTS I型双块式无砟轨道轨枕离缝冒浆病害的整治方法
XU PENG (author) / LI QIUYI (author) / SUN LI (author) / YANG YANLI (author) / TAN SHIYU (author) / WANG SENRONG (author) / ZHANG SHIJIE (author) / ZHU BIN (author) / LI YANGCHUN (author) / LIU YONGCUN (author)
2021-02-23
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
CRTS II type ballastless track joint damage detection method and system
| European Patent Office | 2023
| European Patent Office | 2023