A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to an urban rail transit large settlement section ballast bed transformation method which comprises the steps that cast-in-place heightening supporting blocks higher than existing sleepers are cast in place between the existing sleepers, the existing sleepers on the two sides of an expansion joint are chiseled away at the position of the expansion joint of an existing ballast bed, and the heightening supporting blocks are cast in place at the in-situ position after chiseling away. The lifting height of the cast-in-place heightened supporting block is matched with the settling volume compared with the existing sleeper; cast-in-place heightened ballast beds are cast on the existing ballast bed around the cast-in-place heightened supporting blocks, and the cast-in-place heightened ballast beds limit and enclose the cast-in-place heightened supporting blocks; and the connection between the steel rail and the existing sleeper is removed, and the steel rail is fixedly mounted on the cast-in-place heightened supporting block through a fastener, so that the elevation adjustment of the rail surface elevation of the steel rail is realized. The fastener has the advantages that effective height adjustment of the steel rail can be effectively achieved, the fastener is suitable for track bed transformation requirements of a large settlement section of rail transit, the fastener particularly has a wide and extremely high height adjustment range, the transverse stability of the fastener is ensured, and driving safety is guaranteed.
本发明涉及一种城市轨道交通大沉降地段道床改造方法，在既有轨枕之间的位置现浇高度高于既有轨枕的现浇加高支承块，在既有道床的伸缩缝位置处，凿除该伸缩缝两侧的既有轨枕，在凿除后的原位位置现浇加高支承块，现浇加高支承块相较于既有轨枕的抬高高度与沉降量相适应；在现浇加高支承块周围的既有道床上现浇加高道床，现浇加高道床对现浇加高支承块进行限位围合；解除钢轨与既有轨枕之间的连接，并将钢轨通过扣件固定安装在现浇加高支承块上，实现钢轨的轨面标高的抬高调整。本发明的优点是：能够有效实现钢轨的有效调高，适应于轨道交通大沉降地段道床改造需要，尤其是具有宽泛且极高的调高范围，确保扣件的横向稳定性，保障行车安全。
The invention relates to an urban rail transit large settlement section ballast bed transformation method which comprises the steps that cast-in-place heightening supporting blocks higher than existing sleepers are cast in place between the existing sleepers, the existing sleepers on the two sides of an expansion joint are chiseled away at the position of the expansion joint of an existing ballast bed, and the heightening supporting blocks are cast in place at the in-situ position after chiseling away. The lifting height of the cast-in-place heightened supporting block is matched with the settling volume compared with the existing sleeper; cast-in-place heightened ballast beds are cast on the existing ballast bed around the cast-in-place heightened supporting blocks, and the cast-in-place heightened ballast beds limit and enclose the cast-in-place heightened supporting blocks; and the connection between the steel rail and the existing sleeper is removed, and the steel rail is fixedly mounted on the cast-in-place heightened supporting block through a fastener, so that the elevation adjustment of the rail surface elevation of the steel rail is realized. The fastener has the advantages that effective height adjustment of the steel rail can be effectively achieved, the fastener is suitable for track bed transformation requirements of a large settlement section of rail transit, the fastener particularly has a wide and extremely high height adjustment range, the transverse stability of the fastener is ensured, and driving safety is guaranteed.
本发明涉及一种城市轨道交通大沉降地段道床改造方法，在既有轨枕之间的位置现浇高度高于既有轨枕的现浇加高支承块，在既有道床的伸缩缝位置处，凿除该伸缩缝两侧的既有轨枕，在凿除后的原位位置现浇加高支承块，现浇加高支承块相较于既有轨枕的抬高高度与沉降量相适应；在现浇加高支承块周围的既有道床上现浇加高道床，现浇加高道床对现浇加高支承块进行限位围合；解除钢轨与既有轨枕之间的连接，并将钢轨通过扣件固定安装在现浇加高支承块上，实现钢轨的轨面标高的抬高调整。本发明的优点是：能够有效实现钢轨的有效调高，适应于轨道交通大沉降地段道床改造需要，尤其是具有宽泛且极高的调高范围，确保扣件的横向稳定性，保障行车安全。
Urban rail transit large settlement section ballast bed transformation method
一种城市轨道交通大沉降地段道床改造方法
WU JUN (author)
2024-05-07
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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