| 路肩石、中央分隔带护栏施工工艺 |
| 添加时间：2020/11/28 14:19:21 浏览次数： |
| 路肩石、中央分隔带护栏施工工艺 Construction technology of shoulder stone and median barrier 1、一般规定 1. General provisions 1) 路肩石、中央分隔带护栏采用统一规格、集中预制。 1) The shoulder stone and the guardrail of central partition belt are prefabricated in a unified specification. 2) 路肩石下垫层要采用无砂混凝土垫层。 2) No sand concrete cushion shall be used for the underlayer of shoulder stone. 3) 应轻拿轻放，避免损坏。强度不合格、掉边（角）、蜂窝、麻面、颜色不一致的不得使用。 3) Handle with care to avoid damage. Unqualified strength, edge (corner), honeycomb, pitted surface and inconsistent color shall not be used. 4) 中央分隔带护栏的安装采用“预安装”方法，经监理验证后再进行正式安装。 4) The "pre installation" method is adopted for the installation of median guardrail, and the formal installation can be carried out after being verified by the supervisor. 2、施工工艺流程 2. Construction process 1) 路肩石施工工艺流程 1) Construction process of shoulder stone 路肩石预制→运输至现场→施工放样→安装→调整→勾缝→养护。 Shoulder stone prefabrication → transportation to site → construction setting out → installation → adjustment → pointing → maintenance. 2) 中央分隔带护栏施工工艺流程 2) Construction process of median barrier 护栏预制→运输至现场→施工放样→预安装→监理检验→调整→勾缝→维护 Guardrail prefabrication → transportation to site → construction setting out → pre installation → supervision inspection → adjustment → joint pointing → maintenance 3、施工要点 3. Key points of construction 1）测量放样 1) Survey and setting out 安装前，应校核设计中线，测设安装控制桩，直线段桩距为10m，曲线段不大于5m。按照设计高程进行控制测量。 Before installation, the design center line shall be checked, and the control pile shall be measured and installed. The pile distance in the straight line section shall be 10 m, and the curve section shall not be more than 5 m. Control survey shall be carried out according to the design elevation. 2）运输 2) Transportation 预制件在运输过程中，应放置平稳，避免损坏。运到施工现场的要及时安装，若不能及时安装完毕要与其他材料沿路面一侧摆放整齐，不能影响路容路貌。 During transportation, prefabricated parts shall be placed stably to avoid damage. Those transported to the construction site should be installed in time. If the installation cannot be completed in time, they should be placed in order along one side of the pavement with other materials, so as not to affect the appearance of the road. |
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