Study on the Construction Technology of Subgrade Pavement in Road and Bridge Settlement Section

With the continuous development of China’s economy,the construction of roads and bridges work has put forward higher requirements.Due to various factors,the long-term use of roads and bridges will produce a settlement phenomenon.Therefore,it is crucial to address settlement issues during the construction of roads and bridges to ensure that the quality of subgrade and pavement construction meets national regulations.This paper introduces the harm of subgrade pavement subsidence,analyzes the causes of subgrade pavement deformation,and discusses the technical points of subgrade pavement construction,hoping to provide some reference for relevant practitioners.

Technologies for Asphalt Pavement Surface Testing in Road and Bridge Construction

Asphalt pavement is currently one of the main components in the construction of roads and bridges.However,from a practical point of view,various quality problems are prone to occur in the surface layer of asphalt pavement,which will lead to the poor overall quality of road and bridge projects.Therefore,it should be applied reasonably.Advanced testing technologies are used to test the mixture quality,compaction,segregation,thickness,and other aspects of the asphalt pavement surface layer,so as to improve the quality of the asphalt pavement surface layer,and then improve the overall quality of road and bridge construction.Therefore,this paper mainly analyzes the technologies for asphalt pavement surface layer testing in road and bridge engineering construction.

Construction Technology and Safety Monitoring Measures of Road and Bridge Engineering

With the acceleration of urbanization and the continuous improvement of urban infrastructure construction,roads and bridges,as an important infrastructure content in China,directly affect people's daily travel.Therefore,the construction and management of roads and bridges must be improved to ensure the quality and safety of roads and bridges and effectively prevent safety accidents.Strengthen the management of road and bridge construction through safety monitoring,improve the safety factor of the project and ensure people's travel safety.This paper mainly analyzes the common diseases and construction technology of road and bridge engineering construction,and puts forward safety monitoring measures.

Quality Problems and Preventive Measures for Municipal Road and Bridge Construction

In the process of construction of municipal roads and bridges,it is especially important for the construction of waterproof roadbed.If the leakage of waterproof foundation surface will inevitably lead to the impact of the quality of roads and bridges,not only the economic and social benefits of the enterprise be lost but also threaten the safety of pedestrians'lives and property.Therefore,this paper analyzes the influencing factors in the waterproof roadbed surface of municipal road bridge construction,and proposes corresponding solutions.

Analysis of Common Diseases and Construction Treatment Technologies of Road and Bridge Engineering

In recent years, the rapid growth of the number of private cars has greatly increased the traffic pressure, so the quality of roads and bridges should be further improved. The paper expounds the related matters of road and bridge engineering from three aspects. Firstly, it expounds the construction principles of road and bridge engineering, which are regarded as the theoretical basis of follow-up research. Secondly, it analyzes the common diseases of road and bridge engineering, including bridgehead damage, rein-forcement corrosion, and subgrade uneven settlement, etc. Finally, it puts forward the construction treatment technology of road and bridge engineering on the basis of the construction principles and taking the common diseases as reference.

Application of Mobile Formwork Cast-In-Situ Beam Technology in Bridge Construction

The application of mobile formwork cast-in-situ beam technology is conducive to providing quality assurance for bridge constructions.At the same time,it can improve the overall mechanization level of the construction process and further accelerate the construction progress,so as to shorten the construction period and improve the economic benefits of enterprises.In fact,this construction method has been widely applied.In order to assure a positive outcome from the use of this technology,this paper analyzes the application of mobile formwork cast-in-situ beam technology in bridge construction to provide reference.

Analysis on Construction Technology of Reinforced Concrete Tied Arch Bridge

Bridge construction has received a lot of attention as transportation continues to improve.Reinforced concrete linked arch bridges are a common bridge style in today’s bridge construction.This type of bridge not only has a basic and generous shape,but it is also incredibly easy to construct,resulting in significant material and construction cost savings.This article analyzes the construction technology of a reinforced concrete linked arch bridge in order to achieve good construction and application.It is hoped that this analysis can provide a scientific reference for the guarantee of the construction quality and subsequent application effect of this kind of bridge.

Study of the Application of Expansive Cement in Building Construction

A China’s construction industry continues to develop,the amount of building construction has increased significantly,and construction technology has been continuously advancing.In particular,the application of expansive cement in building construction is becoming more popular.The correct use of construction technologies can not only speed up the progress of the construction project,but also reduce the project cost significantly.In this paper,the application of expansive cement building construction is discussed in detail,and the solutions of related problems are proposed.

市政路桥工程的钻孔灌注桩施工技术分析

对市政路桥工程的钻孔灌注桩施工工艺进行分析,探讨市政路桥工程的钻孔灌注桩施工应注意的问题,如护筒下沉、钻孔倾斜、坍孔缩孔、断桩,结合工程案例对市政路桥施工中钻孔灌注桩施工技术的应用进行详细介绍。

沥青道路施工技术在市政道路建设中的应用

沥青道路施工技术是市政道路建设的关键技术,对于提高道路质量、降低噪声、提高通行效率、减轻环境影响以及确保道路坚固性和平整度具有重要作用。在维也纳大道至新机场至卡特特项目中,沥青道路施工技术被广泛应用,取得了良好的效果。为了进一步提高道路质量,需要重视先进施工理念的应用、材料和工艺的持续改进,以及加强质量监管和成本控制。因此,对维也纳大道至新机场至卡特特项目中沥青道路施工技术在市政道路建设中的具体应用进行了探讨。

绿色环保理念在公路工程道路桥梁施工中的技术运用分析

文章研究了绿色环保理念在公路工程道路桥梁施工中的技术运用,在明确绿色环保理念概念内涵的基础上,从节地技术措施、节水技术措施、节能技术措施、节材技术措施、环境保护措施等方面出发,分析了绿色施工技术应用要点,结合工程特点和现场条件,达到节约施工资源、降低能源消耗、保护生态环境的目的。

浅谈桥梁施工中桩基础施工技术要点

为提高桥梁工程建设质量,加强桥梁施工中桩基础施工技术的研究与应用,论文阐述了桥梁工程的特点以及桩基础施工技术的重要性,分析了桥梁桩基础施工中测量放样、护筒埋设、钻孔、护壁、检孔与清空、钢筋制作与安装、混凝土浇筑等环节的技术要点。

张吉怀铁路酉水大桥非对称拱桥钢拱肋架设技术研究

张吉怀铁路酉水大桥主桥为主跨292 m的非对称上承式钢管混凝土拱桥,其钢拱肋采用斜拉扣挂法进行节段悬臂架设施工。本文结合张吉怀铁路酉水大桥工程,针对高速铁路非对称拱桥钢拱肋安装施工技术展开研究,主要包括:复杂地形条件下的施工技术,因地制宜地进行缆索起重机的设计及安装,钢管拱整节段拼装和架设,合龙装置和技术等。该施工技术保障了钢拱肋架设的精度和质量,钢拱肋的成拱线形与设计值较为吻合。该桥运营以来,各结构性能指标均满足设计要求。

论道路桥梁路基施工技术的应用分析

在社会经济快速发展背景下,道路桥梁工程建设规模逐渐增大,而道路桥梁路基施工受到广泛关注,为了保证路基施工满足规范要求,则需要重视路基施工技术的应用,以实现工程顺利施工建设。在道路桥梁施工过程中,路基施工会给工程质量起到重要影响,所以针对路基工程施工必须高度重视,严格根据规范标准完成施工设计,并结合具体施工情况,采取针对性路基施工技术,综合考虑施工环境,把握施工要点,确保可以提高路基施工质量,最终提高道路桥梁工程整体质量。对此,下文主要分析道路桥梁路基施工技术。

公路桥梁施工管理中应用BIM 技术的研究分析

在公路桥梁的工程施工管理全面开展实施中,现阶段的建筑信息模型(Building Information Modeling,BIM)立体化以及智能化工程管理技术正在被普遍适用于公路桥梁施工。工程管理人员对大体积的公路桥梁基础设施结构应当合理采用BIM的辅助管理技术,从而实现更加优良的工程信息化管理效益,节约公路桥梁的工程全过程管理资源。因此,探讨了在公路桥梁施工过程中全面采用BIM管理技术方法的应用要点。

预应力技术在桥梁工程施工中的应用研究

预应力技术可提高工程的耐久性和抗裂性,具有较强的实践价值。文章阐释了预应力施工技术的基本原理和应用优势,从混凝土构件施工、梁段预制、受弯构件施工等方面探究了预应力施工技术在道路桥梁施工技术中的具体应用,分析了预应力施工技术应用于桥梁施工技术出现的问题,并提出了相应的施工质量控制措施。

基于“职业院校现场工程师专项培养计划”的道路与桥梁工程技术专业建设探讨

以“职业院校工程师专项培养计划”为依据,广西交通职业技术学院联合北部湾投资集团有限公司,在校企共同构建“四融四阶”课程体系,建设平台课程、模块化课程和“项目+活页”数字化教材的形式联合开发课程教学资源,实施“双主体育人、双导师教学、校内校外教学工场”三双融合的教学组织形式,创新考核评价方式等方面提出了道路与桥梁工程技术专业建设的基本思路,初步形成了一种道路与桥梁工程技术专业现场工程师培养的模式,为其他兄弟院校培养职业类现场工程师提供借鉴。

张湾特大桥低净空跨国道箱梁悬臂浇筑关键技术

随着交通建设的高速发展,悬臂浇筑施工技术被广泛应用于桥梁建设中。张湾特大桥斜跨S335省道,采用箱梁悬臂浇筑技术在低净空下施工。依托张湾特大桥为工程背景,针对现场箱梁悬臂浇筑施工过程中存在的技术难点,采取一定的应对方案,改进悬臂浇筑技术措施,经现场实施后效果良好,有效保障了施工的可靠性和安全性。

跨繁忙铁路干线钢-混混合梁转体桥梁施工监控技术研究

为确保大跨度钢-混混合梁转体施工的顺利进行,需对其结构的安全性能和稳定性能参数进行实时监控。以某跨繁忙铁路干线钢-混混合梁转体桥梁为研究背景,采用数值模拟计算与现场监测相结合的方法,研究了大跨度钢-混混合梁转体施工监控技术。研究结果表明:经数值模拟计算得到的桥梁受力与变形结果均满足相关设计要求,表明该数值计算模型具有一定的合理性与准确性;现场实测得到的关键截面应力、主梁线形等安全性能参数均满足规范要求,且各安全性能参数实测结果与数值模拟计算结果相吻合,有效验证了大跨度钢-混混合梁转体施工监控技术体系的适用性;通过分析梁端实测振动响应曲线发现,在转体过程中出现了因撑脚与滑道接触、滑道不平顺等偶然现象而产生的梁端震颤现象,但其影响程度在可控范围内。相关结论可为类似大跨度钢-混混合梁转体桥梁施工监控技术提供一定参考。