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侧缘石质量通病及防治
侧缘石基础和靠背填土不实
The foundation and back filling of side kerb are not solid
5.1. 1现象:
5.1.1 phenomenon:
基础不实和靠背回填废料、虚土不夯实或夯实达不到要求密实度,竣工交付使用后即出现变形和下沉,出现弯弯曲曲,高低不平。
If the foundation is not solid and the back is backfilled with waste materials, the virtual soil is not compacted or the compaction fails to meet the required compactness, the deformation and subsidence will occur after the completion and delivery for use, and the bending, bending and uneven will occur.
5.1.2原因分析:
5.1.2 cause analysis:
*对单项路缘石工程未按设计要求作路缘石基础的认真夯实。
*For single kerb project, the kerb foundation is not compacted as per the design requirements.
*对道路工程中附属工程路缘石,其基础未坐落在被压实的路基和基层上,而是坐落在松软的路基或基层上。
*For curb of ancillary works in road works, its foundation is not located on the compacted subgrade and base, but on the soft subgrade or base.
*路缘石靠背也未按设计要求填筑石灰土或石灰粉煤灰砂砾混合料进行夯实。
*The back of the kerb is not compacted with lime soil or lime fly ash gravel mixture according to the design requirements.
5.1.2危害:
5.1.2 hazards:
稍触外力,即东倒西歪或下沉,保持不住路缘石顶面平顺和纵向直顺,使人行道步道砖难以接平,造成外观质量和使用功能上的明显缺陷。
A little touch of external force, i.e. tilting or sinking, can not keep the top surface of the curb smooth and vertical straight, which makes it difficult to connect the sidewalk sidewalk bricks, resulting in obvious defects in appearance quality and use function.
5.1.3治理方法:
5.1.3 treatment method:
*路缘石基础应与路面基层以同样结构摊铺,同步碾压;
*The kerb foundation shall be paved with the same structure as the pavement base and rolled synchronously;
*安装路缘石要按设计要求,砂浆卧底,并使基座处在坚实的结构层上。
*The installation of curbs shall be carried out in accordance with the design requirements, with mortar undercover, and the base shall be placed on a solid structural layer.
*路缘石体积偏大点,偏厚些,容易安装稳定直顺。比如,同一标段同样都在侧分带上K0+272~K1+250处路缘石稳固性较其他段落明显要好。
*Kerb volume is larger, thicker, easy to install, stable and straight. For example, the stability of kerbs at K0 + 272 ~ K1 + 250 on the side sub belt of the same bid section is obviously better than that of other sections.

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