ICS?93.080.01

CCS?P66

15

内 蒙 古 自 治 区 地 方 标 准

DB15/T?2422—2021

高纬度多年冻土区公路路基

设计与施工技术规程

Technical?specifications?for?design?and?construction?of?road?subgrade

in?high-latitude?permafrost?regions

2021-10-15?发布 2021-11-15?实施

内蒙古自治区市场监督管理局 发?布

DB15/T?2422—2021

目 次

前言?.................................................................................? II

1 范围?...............................................................................?1

2 规范性引用文件?.....................................................................?1

3 术语和定义?.........................................................................?1

4 基本规定?...........................................................................?3

5 路基设计?...........................................................................?4

5.1?一般规定?.......................................................................? 4

5.2?设计原则?.......................................................................? 4

5.3?地基处理?.......................................................................? 5

5.4?路堤设计?.......................................................................? 5

5.5?路堑设计?.......................................................................? 8

5.6?过渡段设计?.....................................................................? 9

5.7?边坡护道、护脚设计?............................................................? 11

5.8?排水设计?......................................................................? 12

6 路基施工?..........................................................................?13

6.1?一般规定?...................................................................... ?13

6.2?施工准备?...................................................................... ?13

6.3?路堤施工?...................................................................... ?14

6.4?路堑施工?......................................................................