市政道路桥梁工程中关于沉降的问题

文章作者：冯新安 期刊页码：2022年第15期39页

浏览次数：348次

【摘要】道路桥梁是国家基础设施中的重要环节，经过历史和时代的不断发展，我国道路桥梁工程领域方面的技术已经达到了世 界领先，市政道路的建设首要问题便是道路的安全性，在道路桥梁施工过程中，容易出现沉降，影响到工程的质量，沉降问题严 重甚至会成为道路桥梁垮塌的直接因素，造成重大的人员损失和经济损失。道路沉降现象出现的原因有很多种，主要分为两大类， 第一类是由于道路修建所处板块发生偏移撞击造成的沉降，这种沉降属于自然沉降；第二类便是由于建设不当，设计问题，施工 使用问题造成的道路沉降，属于人为沉降，二者的区别在与第一类沉降是不可逆的，第二类沉降是可逆的，即使是港珠澳大桥在 其施工过程中也出现过沉降问题，由于专家的及时处理而使得大桥的整体工程并未受到很大影响，由此可见，了解了道路桥梁沉 降产生的原因以及处理方法，道路桥梁建设质量将得到很好的控制。针对道路桥梁建设过程中沉降问题的成因，本文通过温度、 混凝土、材料和钢筋四个方面进行分析，并提出了沉降控制措施，保证了道路桥梁的结构安全性。

【关键词】道路桥梁；沉降 Problems about settlement in municipal road and bridge engineering Abstract: Roads and bridges are an important link in the national infrastructure. After the continuous development of history and times, my country's technology in the field of road and bridge engineering has reached the world's leading position. The primary problem of municipal road construction is road safety. In the process of bridge construction, settlement is prone to occur, which affects the quality of the project. Serious settlement problems may even become a direct factor in the collapse of roads and bridges, resulting in significant human and economic losses. There are many reasons for road subsidence, which are mainly divided into two categories. The first category is the subsidence caused by the offset impact of the plate where the road is built, which is a natural subsidence; the second category is due to improper construction. , design problems, and road settlement caused by construction and use problems are man-made settlements. The difference between the two is that the first type of settlement is irreversible, and the second type of settlement is reversible. Even the Hong Kong-Zhuhai-Macao Bridge during its construction process If there is a settlement problem, the overall project of the bridge has not been greatly affected due to the timely treatment by experts. It can be seen that, by understanding the causes and treatment methods of road and bridge settlement, the construction quality of roads and bridges will be well controlled. Aiming at the causes of settlement problems in the construction of roads and bridges, this paper analyzes the four aspects of temperature, concrete, materials and steel bars, and proposes settlement control measures to ensure the structural safety of roads and bridges. Key words: road and bridge; settlement

【DOI】10.12334/j.issn.1002-8536.2022.15.012