挡土墙设计ppt课件.ppt

第六章挡土墙设计
Design of the Retaining Wall
§6-1:概述 Introduction
一、挡土墙的用途 Use of the Retaining Wall
定义 Definition
with the subgrade at abrupt slopes或岩石风化的路堑边坡地段slope of cut plat with rock decayed ;
plat for avoiding mass cutting and lowering the height of the side slope;
,滑坡的不良地质地段geologically bad plat with possible eboulement and landslide;
subgrade plat seriously scoured by current or steeped in water for a long perioud
connecting section between bridge and subbase
,减少拆迁或少占农田地地段plat for conserving land, reduce removal or farming land
,生态环境或其它特殊需要的地段plat for protecting important buildings, ecological environment or other special needs
Use
路堑墙 cutting wall
路肩墙 shoulder wall
山坡墙 hillside wall
路堤墙 embankment wall
桥头挡土墙
bridgehead retaining wall
路肩墙 Shoulder Wall:
;
;
,减少占地,减少填方量;
山坡墙 Hillside Wall:
支挡山坡覆盖层或滑坡下滑
Types of the retaining wall
:
Classification based on the wall position
山坡墙、路堤墙、路堑墙、路肩墙
:
Classification based on the building types of the wall
石砌、混凝土、钢筋混凝土、砖砌、木质、钢板墙
:
Classification based on the structural form of the wall
重力式、半重力式、衡重式、锚杆式、薄壁式、加筋土、垛式
挡土墙的特点及适用范围 Features of all types of walls
1、重力式挡土墙
重力式挡土墙
Gravity retaining wall