基坑土石方开挖方案.docxVIP

基坑土石方开挖方案

目录

1.内容描述................................................3

1.1项目背景.............................................4

1.2开挖目的.............................................4

1.3方案编制依据.........................................5

2.工程概况................................................6

2.1工程简介.............................................7

2.2地质条件.............................................8

2.3开挖区域.............................................9

3.开挖设计...............................................10

3.1开挖方案选择........................................11

3.1.1开挖方法........................................12

3.1.2开挖顺序........................................13

3.1.3开挖分层........................................14

3.2开挖尺寸及边坡设计..................................15

3.2.1开挖尺寸........................................16

3.2.2边坡稳定性分析..................................17

3.2.3边坡防护措施....................................18

4.开挖施工...............................................19

4.1施工准备............................................20

4.1.1施工人员........................................21

4.1.2施工设备........................................22

4.1.3施工材料........................................22

4.2施工工艺............................................24

4.2.1土方开挖........................................25

4.2.2石方开挖........................................26

4.2.3开挖过程中的质量控制............................26

4.3施工安全措施........................................27

4.3.1安全防护设施....................................28

4.3.2安全操作规程....................................29

4.3.3应急预案........................................30

5.开挖监测...............................................31

5.1监测内容............................................31

5.1.1边坡位移监测....................................32

5.1.2地下水监测......................................34

5.1.3开挖深度监测....................................35

5.2监测方法.............