lng墙体施工方案书-施工方案.doc

Fujian LNG Terminal and Trunkline Project
_____________________________________________________________________________________________________________________________

Method Statement for Cracks control method of mass concrete
______________________________________________

REVISION :A

PAGE: 13/48

0
2009.10.6
张晓斌
廖明强
刘俊

B
2009.9.25
张晓斌
廖明强
刘俊

A
2009.9.2
张晓斌
廖明强
刘俊

版次
Rev.
日期
Date
编 制
Prepared By
审 核
Reviewed By
批 准
Approved By
CBI
业主/监理
Owner/Supervisor

修 改 说 明 提交供审核
Revision Description. IFC (Issue for Construction)

中国核工业华兴建设公司
CHINA NUCLEAR INDUSTRY HUAXING CONSTRUCTION CO.
福建LNG一期新增3#、4#储罐工程
FJLNG Phase I Additional #3 And #4 Tanks Project

液化天然气低温储罐土建工程
LNG Cryogenic Tank Civil Works

编码CODE
FJLNG-CO2-HUAX-014

文件类别
Doc. Type
方案Method Statement
文件名称
Doc. Title
福建LNG罐混凝土墙体施工方案
Method Statement for the Concrete Wall of FJLNG Tank

版次Rev
页码Page
A
B
C
D
E
F
G
版次Rev
页码Page
A
B
C
D
E
F
G
0

11

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

21

Fujian LNG phrase 1 Additional 3# & 4# Tanks Project
_____________________________________________________________________________________________________________________________

Method Statement for the Concrete Wall of LNG Tank
______________________________________________

REVISION :0

PAGE: 51/51

CHANGE RECORD PAGE

REVISION DESCRIPTION OF REVISION
A Issue for Review
B Issue for Review
0 IFC

REVISION TABLE

PAGE
REVISION
PAGE
REVISION
APPENDIX
REVISION

A

A

A

1
X

26
X

1
X

2
X

27
X

2
X

3
X

28
X

3
X

4
X

29
X

4
X

5
X

30
X

5
X

6
X

31
X

6
X

7
X

32
X

7
X

8
X

33
X

8
X

9
X

34
X

10
X

35
X

11
X

36
X

12
X

37
X

13
X

38
X

14
X

39
X

15
X

40
X

16
X

41
X

17
X

42
X

18
X

43

19
X

44

20
X

45

21
X

46

22
X

47

23
X

48

24
X

49

25
X

50

目 录 Content

1. General概述 6
2. Scope 范围 6
3. References 参考文献 7
3.1. Drawing 图纸 7
3.2. Specifications 规范 11
4. Construction preparation 施工准备 11
4.1. Personnel人员 11
4.2. Construction materials施工主要材料 11
4.3. Construction equipment and tools施工机具 11
5. Construction methodology施工方法 14
5.1. Construction sequence 施工顺序 14
5.2. Survey control 测量控制 15
5.3. Installation of embedded parts 预埋件安装 17
5.4. Rebar fabrication and fixing 钢筋制作及安装 21
5.5. Pre-stressing duct erection 预应力管道安装 25
5.6. Formwork erection 模板支设 25
5.7. STRIKING OF FORMWORK 拆模 37
5.8. Horizontal construction joints treatment水平施工缝的处理 38
5.9. Concrete work 混凝土浇注工作 39
5.10. Temporary Construction Opening 临时施工洞口 41
6. Contingency Plans 应急方案 42
7. Controls 控制 42
8. Access 通道 43
9. TRAINING 培训 44
10. Safety plan for wall construction墙体施工安全方案 45
10.1. Physical barrier to be installed安装硬围护 45
10.2. Climbing of Doka formwork 多卡模板爬升 45
10.3. Fall protection 防坠落保护 45
10.4. Access and emergency access 通道和紧急通道 46
10.5. Electrical safety measure 用电安全措施 46
10.6. Bad weather plan 坏天气计划 46
11. Appendix 附件 47

1. General概述
This method statement is established to define construction method for the concrete wall of FJLNG phrase 1 Additional 3# and 4# Tanks project. 此方案适用于福建LNG一期新增3#和4#储罐工程混凝土墙体施工方案。
2. Scope 范围
Variations of sequence or method may evolve as the work progresses, which will maximize efficiency and use of available equipment and resources. A revised Method statement will be issued for variations in work practice. 施工顺序或方法会随工程进展而改动，以便最大化的提高资源使用效率。
The tank wall is circular on plan, tank height of 50054mm, 1000mm thick tapering down to 550mm thick at a height of 6750mm. The inner radius of wall is 41000mm, the outer radius is 41550mm, and the thickness of standard wall is 550mm. The concrete C50 will be used for the wall, reinforced with high yield steel reinforcement on the faces of the wall and cryogenic reinforcement just be used on the inner face of lift 2. 罐体墙体为圆形, 罐高50054mm, 在高度6750mm范围内，罐厚从1000mm渐变到550mm. 墙体内径为41000mm,外径为41550mm,标准墙体厚度为550mm。墙体使用C50混凝土，墙体钢筋高屈服钢筋，第二层墙体内侧使用低温钢筋。
Post Tensioning is applied to horizontal and vertical pre-stressing ducts built into the walls. 预应力适用于墙体的水平和竖直预应力管道。
The description of tendon prestressing and duct grouting will be addressed in separated method statement. 预应力和孔道灌浆的描述参见单独的施工方案。
During construction of the wall, welding joints and deformation of inserts control shall be performed by the mechanical subcontractor in accordance with the relevant specification, other work shall be carried out by civil contractor. The mechanical subcontractor shall use the access and platform set by civil subcontractor for welding of inserts. 在罐筒体施工过程中，预埋件焊接连接和变形控制措施工作由机械分包商按照相关规范执行，其余相关工作均由土建分包商完成。机械分包商进入筒体执行预埋件焊接时，可利用土建分包商设置的通道和操作平台。
Construction will be 11 lifts of the following heights: 施工每层高度：
Lift No
Height (mm)
Concrete Dosage(m³)
1
3375
790
2
3375
621
3
3800
587
4
3800
587
5
3800
587
6
3800
587
7
3800
587
8
3800
587
9
3800
587
10
3775
584
11
11-1
2275
534
11-2
1100
437

3. References 参考文献
3.1. Drawing 图纸
General Arrangement 总体安排 DD-DWG-TS-ST-025101
Tank ＃TS-T-02-03 Orientation 3#罐定位图 DD-DWG-TS-ST-025102-01
Tank ＃TS-T-02-04 Orientation 4#罐定位图 DD-DWG-TS-ST-025102-02
Outer Paste on Liner 衬里的外部粘贴材料 DD-DWG-TS-ST-025122
Outer Liner Embed Details 外罐衬里预埋件详图 DD-DWG-TS-ST-025123-01
Outer Liner Embed Details at TCO 临时洞口外罐衬里预埋件详图 DD-DWG-TS-ST-025123-02
Outer Liner Embed Details 外罐衬里预埋件详图 DD-DWG-TS-ST-025123-03
3" Outer Bottom Insulation Purge N13
3"外罐底隔热层排气管N13 DD-DWG-TS-ST-025192
Outer Liner Embed Details 外罐预埋件详图 DD-DWG-TS-ST-025139
2" Dia Pres. Equalization - N14A/B & N20A/B
2"稳压管N14A/B & N20A/B DD-DWG-TS-ST-025194
Temporary Outer Line Rain Gutter 临时外排水管 DD-DWG-TS-ST-02ER5
Compression Bar Anchor抗压钢筋锚固件 DD-DWG-TS-ST-025158
Embedment Plates for Escape Ladder逃生梯预埋件 DD-DWG-TS-ST-025270
Embedment Plates for Escape Ladder逃生梯预埋件 DD-DWG-TS-ST-025271
Embedment Plates for Main Stairway 主要通道预埋件 DD-DWG-TS-ST-025272
Embedment Plates for Main Stairway 主要通道预埋件 DD-DWG-TS-ST-025273
Embedment Plates for Main Pipe Rack 主管支架预埋件 DD-DWG-TS-ST-025274-01
Embedment Plates for Main Pipe Rack 主管支架预埋件 DD-DWG-TS-ST-025274-02
Embedment Plates for Firewater Piping 消防管道预埋板DD-DWG-TS-ST-025275
Embed Plates for Circumferential Handrail 环形栏杆预埋件图纸
DD-DWG-TS-ST-025277
Embed plates for roof walkway 穹顶走道预埋件 DD-DWG-TS-ST-025280
Roof embed dimensions 穹顶预埋件尺寸 DD-DWG-TS-ST-025284
Roof embed dimensions 穹顶预埋件尺寸 DD-DWG-TS-ST-025285
Circumferential handrail 环形栏杆 DD-DWG-TS-ST-025321
Concrete Tank Elevation 混凝土罐体立面图 DD-DWG-TS-ST-025400
Reinforcing Steel Bend Details 钢筋弯曲详图 DD-DWG-TS-ST-025411
Concrete Wall Reinforcement 混凝土墙体钢筋 DD-DWG-TS-ST-025415
Starter Bar Arrangement @Buttress 扶壁柱处插筋布置图 DD-DWG-TS-ST-025416
Concrete Wall Reinforcement Arrangement @Buttress扶壁柱混凝土墙体钢筋布置图DD-DWG-TS-ST-025417
Concrete Wall Pre-stress Details 混凝土墙体预应力详图 DD-DWG-TS-ST-025418
Temporary Construction Opening (Concrete Wall) 临时施工洞口(混凝土墙体) DD-DWG-TS-ST-025419
Concrete roof reinforcement 混凝土穹顶钢筋 DD-DWG-TS-ST-025420
General note总说明 DD-DWG-TS-ST-0253000
Anchorages details and wall typical section锚具详图和墙体截面图 DD-DWG-TS-ST-0253001
Wall Plan and Sections墙体平面和截面图 DD-DWG-TS-ST-0253002
Horizontal Prestress Layout(sht 1)水平预应力分布图（1） DD-DWG-TS-ST-0253003
Horizontal Prestress Layout(sht 2)水平预应力分布图（2） DD-DWG-TS-ST-0253004
Setting-out for horizontal prestress ducts水平预应力管定位 DD-DWG-TS-ST-0253005
Horizontal prestress layout at wall buttress扶壁柱水平预应力分布图DD-DWG-TS-ST-0253006
Vertical prestress layout(U-shaped ducts) 竖向预应力分布(U形管) DD-DWG-TS-ST-0253007
Vertical prestress layout(U-shaped ducts) 竖向预应力分布(U形管) DD-DWG-TS-ST-0253008
Vertical prestress typical setting-out of steel pipe竖向预应力钢管定位DD-DWG-TS-ST-0253009
Setting-out plan of steel pipes for vertical prestress ducts(sht 1) 竖向预应力管钢管定位平面图（1） DD-DWG-TS-ST-0253010
Setting-out plan of steel pipes for vertical prestress ducts(sht 2) 竖向预应力管钢管定位平面图（2） DD-DWG-TS-ST-0253011
Setting-out plan of steel pipes for vertical prestress ducts(sht 3) 竖向预应力管钢管定位平面图（3） DD-DWG-TS-ST-0253012
Setting-out plan of steel pipes for vertical prestress ducts(sht 4) 竖向预应力管钢管定位平面图（4） DD-DWG-TS-ST-0253013
Setting-out for vertical prestress duct竖向预应力管定位 DD-DWG-TS-ST-0253014
Vertical prestress-Typical steel pipe details & at buttress setting-out竖向预应力-钢管详图及扶壁柱处的定位 DD-DWG-TS-ST-0253015
Vertical prestress steel pipe at opening-Detals临时洞口的竖向预应力钢管详图DD-DWG-TS-ST-0253016
Connection detail of prestress ducts at opening临时洞口的预应力管连接详图DD-DWG-TS-ST-0253017
Tank wall pre-stressing sequence墙体预应力张拉顺序DD-DWG-TS-ST-0253018

3.2. Specifications 规范
Project Specification for Cast-in-Place Concrete Construction for Cryogenic Storage Tank
低温储罐现浇混凝土规格书 DD-SPC-TS-ST-02504
Project Specification for Pre－stress Materials and Installation
预应力材料及安装规范 DD-SPC-TS-ST-02505

4. Construction preparation 施工准备
4.1. Personnel人员
Relevant staff and crews are all through mobilization training and technique training. Special workers are all with special work certificates. The future mobilized personnel also will be trained. 相关管理人员和施工人员已经经过进场培训，特种操作人员持有相应的特种操作证书，相关施工人员和管理人员已经经过相应的技能培训，后续进场人员会按照既定的培训计划进行进场培训和技能培训。
4.2. Construction materials施工主要材料
The recently necessary constructions materials have already arrive at jobsite and qualified after test and ready for usage. The future mobilized materials will also be tested and accepted as per specifications and approved for usage after being tested qualified. 目前所需施工主要材料已经报批进场，并检验合格，正式施工时可以投入使用。后续材料会按照规范要求进行材料进场验收，合格后方可投入使用。
4.3. Construction equipment and tools施工机具
A part of wall construction equipment and tools have already get to jobsite being installed, accepted and used. The future equipment and tools also will be tested for acceptance before being used. The equipment and tools at jobsite now are as follows: 墙体所需施工机具部分进场安装完毕，并通过验收，且已经投入使用。后续设备会按照现场要求进行验收，合格后投入使用。已经进场的设备和施工机具见下表：
序号No.
设备名称Equipment
产地Producing Area
规格/型号Specification/Type
单位Unit
数量Quantity
1
砼搅拌运输车
Truck Mix
中国China
XEJ5270（6m3／each每罐）
辆Each
2
XZJ5259（8m3／each每罐）
辆Each
4
2
平板货车Lorry
中国China
T850（8t）
辆Each
1
3
自卸车Dump Truck
中国China
EQ3141G（7.5T）
辆Each
1
4
拖头Tractor
中国China
EQ4150J（25t）
辆Each
1
5
拖板Trailer
中国China
SE9410（25t）
辆Each
1
LY9381（20t）
辆Each
1
6
汽车吊
Mobile Crane
中国China
25t
台Each
1
7
塔式起重机
Tower Crane
中国China
21CJ210
台Each
1
21CJ290
台Each
2
TC6515C-12E
台Each
3
TC7052
台Each
1
8
砼搅拌站
Batching Plant
中国China
HZS50B（50m3/h）
套Set
2
9
砼布料机 Concrete Placing Boom
中国China
（固定式fixed）38m
套Set
2
（行走式 movable）38m
套Set
1
10
振捣棒 Vibrator
中国China
Ф35—ф70
根Each
15
11
大型移动式钢筋剪切生产线 rebar cutting product line
中国China
GJW-150
套Set
1
12
钢筋大弧弯曲机 Rebar Large Arc Bending Machine
美国America
KRB11# 34
台Each
1
13
自动钢筋弯曲机Rebar Bending Machine
中国China
XGW-40
台Each
2
14
木工圆锯机Carpenter Circular Saw
中国China
MJ-106A
台Each
1
15
木工平面刨 carpenter plane
中国China
MB-504
台Each
1
16
水泵 pump
中国China
AS75-2CB
台Each
2
17
高压水枪 High pressure water jet
中国China
猫王1.35MPa
台Each
2
18
吸尘器 Vacuum
中国China
WVD2002
台Each
1
19
水准仪 Level
瑞士
徕卡NA728
架Each
2
20
全站仪 Total Station
瑞士
TCR702
架Each
1
21
手提圆盘电锯 Portable circular Saw
中国China
C235
台Each
2
22
电钻 Electrical Drill
中国China
JIZ SD05--13A
台Each
4
23
交直流电焊机 Electrical Welding Machine
中国上海Shanghai China
ZXZ1-400/500
台Each
4
24
逆变电焊机 Reverse Welding Machine
中国China
ZX7-400B
台Each
4
25
空压机
Air Compressor
中国China
LGD-20/8（20m3）
台Each
1
26
抽水泵
Water Pumping
中国China
200扬升
台Each
4
27
装载机
loading Truck
中国China
ZL-50
台Each
1
XG951
台Each
1
28
皮带运输机 Conveyer
中国China

架Each
2
29
波纹管加工机械
中国China

套Set
1

5. Construction methodology施工方法
5.1. Construction sequence 施工顺序
Previous lift前一层
Rebar mats pre-fabrication预制钢筋网片
Treatment of construction joint施工缝处理
Rebar mats and inserts installation钢筋网片和预埋件安装
Horizontal /vertical sheath installation水平/垂直预应力管安装
Fixing Rebars at the buttress附壁柱钢筋绑扎
Lifting and Installing the inner formwork内模板提升和安装
Adjusting and fixing inserts and ducts预埋件与预应力管道校正与固定
Cleaning, lifting and installing the outer formwork外模板清理、提升和安装
Concrete mixing and transporting混凝土搅拌与运输
Survey checking and reporting测量检查和报告
Joint inspection and acceptance联合检查和验收
Moistening of construction joint施工缝润湿
Concrete pouring, roughing construction joint and curing混凝土浇筑、施工缝冲毛和养护
Removing formwork and applying curing compound模板拆除和刷养护剂
Geometrical survey and surface inspection & treatment罐体测量和表面处理

Next lift commencement开始下一层
Installation of rebar mats, inserts and ducts for next lift下层钢筋、预埋件和管道安装
The construction sequence of concreting for one wall lift is shown as follows单层墙体施工顺序如下：

5.2. Survey control 测量控制
After the concrete at central area of pile cap reached enough strength, the survey team shall set the center point accurately by using the survey control points approved by Contractor. An