A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a low-altitude grouping type seamless turnout stress relief construction method. The method comprises the following steps that firstly, construction preparation work is conducted; secondly, rail temperature observation points are arranged at rail webs of steel rails on the two sides of a turnout head, a frog center and a turnout tail of the seamless turnout to be diffused; step 3, loosening the connection between the seamless turnout steel rail and the fastener of the switch tie; fourthly, a plastic base plate is placed between the seamless turnout steel rail and the switch tie, and it is guaranteed that the rail top position of the seamless turnout steel rail is visually smooth, the rail direction is straight, and the poor line conditions such as triangular pits do not exist; 5, taking a single group of seamless turnouts as a stress relief unit, keeping the position of the frog unchanged, and taking the frog part as a stress relief zero point to perform stress relief; and step 6, after the stress of the whole group of seamless turnouts is released, the seamless turnouts are locked. The invention aims to solve the technical problems that a roller is inconvenient to place, a steel rail is easy to damage and the position of a turnout switch rail is difficult to control during stress relief of a seamless turnout.
本发明公开了一种低空分组式无缝道岔应力放散施工方法，包括如下步骤：步骤一，施工准备工作；步骤二，在拟放散的无缝道岔的岔头、辙叉心、岔尾的两侧钢轨的轨腰位置设置轨温观测点；步骤三，松开无缝道岔钢轨与岔枕的扣件连接；步骤四，在无缝道岔钢轨和岔枕之间安放塑料垫板，保证无缝道岔钢轨的轨顶位置目视平顺、轨向顺直，无三角坑等不良线路情况；步骤五，以单组的无缝道岔作为一个应力放散单元，保持辙叉位置不变，以辙叉部分作为应力放散的零点进行应力放散；步骤六，整组无缝道岔的应力放散完成后，进行无缝道岔的锁定。本发明要解决无缝道岔在应力放散时不便放置滚筒，易对钢轨造成损伤以及不易控制道岔尖轨位置的技术问题。
The invention discloses a low-altitude grouping type seamless turnout stress relief construction method. The method comprises the following steps that firstly, construction preparation work is conducted; secondly, rail temperature observation points are arranged at rail webs of steel rails on the two sides of a turnout head, a frog center and a turnout tail of the seamless turnout to be diffused; step 3, loosening the connection between the seamless turnout steel rail and the fastener of the switch tie; fourthly, a plastic base plate is placed between the seamless turnout steel rail and the switch tie, and it is guaranteed that the rail top position of the seamless turnout steel rail is visually smooth, the rail direction is straight, and the poor line conditions such as triangular pits do not exist; 5, taking a single group of seamless turnouts as a stress relief unit, keeping the position of the frog unchanged, and taking the frog part as a stress relief zero point to perform stress relief; and step 6, after the stress of the whole group of seamless turnouts is released, the seamless turnouts are locked. The invention aims to solve the technical problems that a roller is inconvenient to place, a steel rail is easy to damage and the position of a turnout switch rail is difficult to control during stress relief of a seamless turnout.
本发明公开了一种低空分组式无缝道岔应力放散施工方法，包括如下步骤：步骤一，施工准备工作；步骤二，在拟放散的无缝道岔的岔头、辙叉心、岔尾的两侧钢轨的轨腰位置设置轨温观测点；步骤三，松开无缝道岔钢轨与岔枕的扣件连接；步骤四，在无缝道岔钢轨和岔枕之间安放塑料垫板，保证无缝道岔钢轨的轨顶位置目视平顺、轨向顺直，无三角坑等不良线路情况；步骤五，以单组的无缝道岔作为一个应力放散单元，保持辙叉位置不变，以辙叉部分作为应力放散的零点进行应力放散；步骤六，整组无缝道岔的应力放散完成后，进行无缝道岔的锁定。本发明要解决无缝道岔在应力放散时不便放置滚筒，易对钢轨造成损伤以及不易控制道岔尖轨位置的技术问题。
Low-altitude grouping type seamless turnout stress relief construction method
一种低空分组式无缝道岔应力放散施工方法
2023-09-08
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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