简述高速公路拓宽工程技术及要点毕业设计_计算机程序设计_计算机设计辅导_计算机设计代做_java_安卓_小程序_springboot

简述高速公路拓宽工程技术及要点

摘要：本文从以下三个方面探讨高速公路拓宽工程施工技术与管理是高速公路拓宽工程概述，说明了高速公路拓宽工程的特点和要求；二是高速公路拓宽施工技术，分析了拓宽工程施工的具体环节与方法三是高速公路拓宽工程施工管理，针对拓宽工程施工过程中出现的问题采取有针对性的管理措施。随着国民经济的快速发展，道路交通运量迅猛增长，既有公路、城市道路等旧路加宽加铺改造工程也随着大量的付诸实施。对旧路进行加宽加铺改造时要特别注意：①新旧路基间的不均匀沉降以及新路基的塑性累积变形对路面结构响应的影响，②新旧路基间的刚度差异对路面结构响应的影响，为此，在旧路加宽改造工程的实施之前必须进行先期的方案试验研究。通常可采用软弱地基处理、基底清淤换填、旧路路堤台阶开挖、土工合成材料加筋垫层和加筋土路堤、土工织物防渗和排水、改良土高强路堤和轻质路堤、铺设土工合成材料防裂层或增大加铺层厚度等工程技术措施。

关键词：高速公路拓宽工程；施工技术；加宽

Abstract: This article from the following three aspects of construction technology and management of freeway widening project is the project of highway, introduces the characteristics and requirements of the freeway widening project; two is the construction technology of expressway widening, analyzes the link and method of widening engineering construction is three engineering construction management of highway engineering construction process, to broaden the problem of targeted management. With the rapid development of the national economy, the rapid growth of road traffic volume, the existing roads, urban roads and other old road widening and renovation project has also been implemented with a large number of. The old road widening pavement reconstruction should pay special attention to: uneven settlement and cumulative effect of deformation on the response of pavement subgrade and roadbed of the new plastic between the effects of the stiffness difference between the new and old embankment to the pavement structure response to this end, before the implementation of the old road widening reconstruction project must be carried out preliminary study on the test scheme. Usually can be used for soft ground treatment, basement, old road embankment dredging for fill step excavation, geosynthetic reinforced and reinforced embankment, geotextile anti-seepage and drainage, soil embankment and high strength lightweight embankment, laying geosynthetics layer or increasing the thickness of overlay technique.

Key words: Highway Widening Project; construction technology; widening

1.高速公路拓宽工程概述…………………………………………………………………………. 1

1.1新老路基结合部位病害原因分析…………………………………………………. 1

1.2 新老路基结合部处理的主要内容………………………………………………… 1

2.路基加宽方案及方法…………………………………………………………………………….. 2

2.1加宽前准备…………………………………………………………………………………. 2

2.2地基处理…………………………………………………………………………………….. 2

2.2.1碎石垫层法……………………………………………………………………….. 2

2.2.2按设计图纸要求测量定出土工格栅的边桩…………………………. 3

2.3 施工准备工作…………………………………………………………………………….. 3

3拓宽公路与施工技术要求……………………………………………………………………… 4

3.1管桩的起吊与储运………………………………………………………………………. 4