基础石方开挖施工方案

目录

1.1施工条件 ------------------------------------------------------------------------------------------------ 2

1.1.1前言------------------------------------------------------------------------------------------------- 2

1.1.2工程布置 ------------------------------------------------------------------------------------------ 2

1.1.3地质条件 ------------------------------------------------------------------------------------------ 2

1.1.4现场具备的条件 --------------------------------------------------------------------------------- 3

1.1.5项目制约条件 ------------------------------------------------------------------------------------ 3

1.2工作内容及要工程量 --------------------------------------------------------------------------------- 3

2、施工进度安排--------------------------------------------------------- 3

2.1施工总体安排 ------------------------------------------------------------------------------------------ 3

2.2石方开挖进度安排 ------------------------------------------------------------------------------------ 3

2.3施工强度 ------------------------------------------------------------------------------------------------ 3

3、施工布置------------------------------------------------------------- 4

3.1 施工布置原则 ----------------------------------------------------------------------------------------- 4

3.2 石方开挖道路 ----------------------------------------------------------------------------------------- 4

3.3 施工导流布置 ----------------------------------------------------------------------------------------- 4

3.4施工供电与照明 --------------------------------------------------------------------------------------- 4

3.5施工供风 ------------------------------------------------------------------------------------------------ 4

3.6施工排水 ------------------------------------------------------------------------------------------------ 4

3.7开挖料的堆存 ------------------------------------------------------------------------------------------ 5

3.8作业面布置 --------------------------------------------------------------------------------------------- 5

4、测量控制------------------------------------------------------------- 5

4.1施工放样 ------------------------------------------------------------------------------------------------ 5

4.2测量设备 ------------------------------------------------------------------------------------------------ 6

5、本方案引用标准和规程规范及资料--------------------------------------- 6

6、表层清理------------------------------------------------------------- 6

6.1表层清理的要求 --------------------------------------------------------------------------------------- 6

6.2植被清理的施工程序和方法------------------------------------------------------------------------ 6

6.2.1施工程序 ------------------------------------------------------------------------------------------ 6

6.2.2施工方法 ------------------------------------------------------------------------------------------ 7

7、基础石方明挖--------------------------------------------------------- 7

7.1主要项目及工作内容 --------------------------------------------------------------------------------- 7

7.2开挖程序 ------------------------------------------------------------------------------------------------ 7

7.3施工准备 ------------------------------------------------------------------------------------------------ 8

7.4石方开挖技术要求 ------------------------------------------------------------------------------------ 8

7.5石方开挖方法 ------------------------------------------------------------------------------------------ 9

7.5.1开挖方式 ------------------------------------------------------------------------------------------ 9

7.5.2石方开挖边坡设计 ------------------------------------------------------------------------------ 9

7.5.3基础开挖底面宽度 ------------------------------------------------------------------------------ 9

7.5.5装药量控制 --------------------------------------------------------------------------------------- 9

7.5.6爆破器材选用 ---------------------------------------------------------------------------------- 12

7.5.7装药与封堵 ------------------------------------------------------------------------------------- 12