高等级公路路基路面施工技术教案.rar

高等级公路路基路面施工技术
班级 日期 ----------------
课题 路基施工准备工作
 
教学目的 了解路基施工前要做的准备工作
重点难点 路基边坡放样的方法
教学内容、教学方法设计与时间分配：
第一章 路基施工的准备工作
第一节 概述
一、路基 施工的 重要性及施工方法
1 、重要性
    路基施工的重要性是路基强度和稳定性的保证，不少公路病害的重要原因就是路基施工质量不良，引起交通阻塞，并消耗大量的养护和维修费用。
    在公路建设中，路基土石方工程数量很大，各别公路路基工程要占全部公路的 65% ，某些重点路段往往是公路施工进度的关键。
2 、施工方法
主要有这么几种：
a 人工施工 效率低、强度大、进度慢；
b 简易机械化施工 生产效率较高，
c 水力机械化施工
d 机械化施工使用配套机械。
二、 路基施工的一般程序与内容
路基施工过程：
Highway Construction Technology Pavement
Class Date ----------------
Preparation of subgrade construction issues
 
Objective To understand the foundation of teaching to do the preparatory work before construction
Setting out the key and difficult way roadbed slope
Teaching content, teaching methods and designs and time allocation:
Chapter Subgrade preparation
Section Overview
First, the importance of subgrade construction and construction method
1, the importance of
    The importance of roadbed roadbed construction guarantees strength and stability, an important reason why many highway disease is poor construction quality of roadbed, causing traffic congestion, and consume a large amount of maintenance and repair costs.
    In highway construction, the roadbed earthwork large number of individual highway subgrade to 65% of total roads, some of the key sections of highway construction is often the key to progress.
2, construction method
There are so few:
a low efficiency of artificial construction, strength, progress slow;
b simple mechanical construction of high production efficiency,
c Hydraulic Mechanical Construction
d the use of mechanized construction related machinery.
Second, the general procedures subgrade construction and content
Subgrade construction process: