机械挖土工艺标准
1、 范围
本工艺标准适用于工业和民用建筑物、构筑物的大型基坑（槽）、管沟以及大面积平整场地等机械挖土。
2、 施工准备
2．1主要机具：
2．1．1挖土机械有：挖土机、推土机、铲运机、自卸汽车。
2．1．2一般机具有：铁锹（尖、平头两种）、手推车、小白线或20号铅丝和钢卷尺以及坡度尺等。
2．2作业条件：
Mechanical excavator technology standards
1, range
This technology is applicable to industrial and civil buildings and structures of large pit (tank), trench, and a large area land leveling and other mechanical excavators.
2, construction preparation
2.1 Main equipment:
2.1.1 earth-moving machines are: excavators, bulldozers, scrapers, dump truck.
2.1.2 General machine has: spade (sharp, flat head two), trolleys, white line or wire and steel tape measure 20 and slope foot and so on.
2.2 Operating conditions: