国际会议汇报(英文)
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extremely close distance away from Yangtze River 4. Fine sandstone and silty clay
•2
•Method
• 2.1 Safety system design
Waterproofing
1. The cement paste tends to be washed
Drill four holes well-distributed around the excavation region, and then test the permeability of each hole.
<=1 m3/d
Drill to obtain four cores well-distributed around the excavation region, and then test the homogeneity of each core.
• Central South University
• New words
Shaft: 通风井 Grouting: 灌浆，给…灌浆 High-pressure jet grouting piles(HJGP): 高压喷射灌浆柱 Silty clay: 粉质黏土 Tunnel boring machine(TBM): 隧道掘进机 Gush: 涌出 Double-spool: 双轴
Uniformity
• 2.3 Safety control process
2.3.2 Freezing control
Layout of freezing holes
Workers are examining the freezing effect.
• 2.3 Safety control process
Disadvantages 1. Large scale 2. Long duration 3. Complex technical issues
• 1.2 Objective
The primary aims of this study were to investigate:
i Overall Process Safety Management (OPSM) in tunnel construction. ii A more reasonable solution for the waterproofing and reinforcing works. iii A real-time update of both environmental parameters and control measures.
2.3.3 UCW removing control
• PART 1 • PART 2 • PART 3 • PART 4
Introduction Method Results
Conclusion
• Outline
•1
•Introduction
• 1.1 Background
Shield tunneling technology
Advantages 1. High level of mechanization 2. Fast progression of tunneling works 3. Lesser environmental impact
Lowering of water level method
Ground freezing
Reinforcing
• 2.1 Safety system design
• 2.2 Safety analysis
Systemic safety
Economic requirements
Numerical simulation
• Safety management in tunnel construction: Case study of Wuhan metro construction
• in China
• Author： MiroslawJ. Skibniewski
•
Lieyun Ding, et al
• Reporter: Wu Tong-gang
Items
Reinforced soil strength
Reinforced soil permeability
Reinforced soil homogeneity
Checking methods
Checking criteria
Drill to obtain two cores on each side deep into the >=1 Mpa excavation bottom five miles away from the tunnel axis, and then conduct the core test.
• 1.3 Project profile
Wuhan Yangtze Metro Tunnel (WYMT)
Characteristics: 1. Double-spool tunnel connecting
two large cities 2. Two sets of ventilation shafts 3. A curve radius of 350m and an
away by the flowing water, resulting in
poor reinforcement.
A high-pressure jet grouting
2. No significant waterproofing results would be achieved due to the close proximity to the Yangtze River.
wk.baidu.com
ANSYS
Ground heterogeneity
Construction
methods
Soil structure interact-
ion
Nonlinear behavior of soils
• 2.3 Safety control process
2.3.1 Reinforcement control
•2
•Method
• 2.1 Safety system design
Waterproofing
1. The cement paste tends to be washed
Drill four holes well-distributed around the excavation region, and then test the permeability of each hole.
<=1 m3/d
Drill to obtain four cores well-distributed around the excavation region, and then test the homogeneity of each core.
• Central South University
• New words
Shaft: 通风井 Grouting: 灌浆，给…灌浆 High-pressure jet grouting piles(HJGP): 高压喷射灌浆柱 Silty clay: 粉质黏土 Tunnel boring machine(TBM): 隧道掘进机 Gush: 涌出 Double-spool: 双轴
Uniformity
• 2.3 Safety control process
2.3.2 Freezing control
Layout of freezing holes
Workers are examining the freezing effect.
• 2.3 Safety control process
Disadvantages 1. Large scale 2. Long duration 3. Complex technical issues
• 1.2 Objective
The primary aims of this study were to investigate:
i Overall Process Safety Management (OPSM) in tunnel construction. ii A more reasonable solution for the waterproofing and reinforcing works. iii A real-time update of both environmental parameters and control measures.
2.3.3 UCW removing control
• PART 1 • PART 2 • PART 3 • PART 4
Introduction Method Results
Conclusion
• Outline
•1
•Introduction
• 1.1 Background
Shield tunneling technology
Advantages 1. High level of mechanization 2. Fast progression of tunneling works 3. Lesser environmental impact
Lowering of water level method
Ground freezing
Reinforcing
• 2.1 Safety system design
• 2.2 Safety analysis
Systemic safety
Economic requirements
Numerical simulation
• Safety management in tunnel construction: Case study of Wuhan metro construction
• in China
• Author： MiroslawJ. Skibniewski
•
Lieyun Ding, et al
• Reporter: Wu Tong-gang
Items
Reinforced soil strength
Reinforced soil permeability
Reinforced soil homogeneity
Checking methods
Checking criteria
Drill to obtain two cores on each side deep into the >=1 Mpa excavation bottom five miles away from the tunnel axis, and then conduct the core test.
• 1.3 Project profile
Wuhan Yangtze Metro Tunnel (WYMT)
Characteristics: 1. Double-spool tunnel connecting
two large cities 2. Two sets of ventilation shafts 3. A curve radius of 350m and an
away by the flowing water, resulting in
poor reinforcement.
A high-pressure jet grouting
2. No significant waterproofing results would be achieved due to the close proximity to the Yangtze River.
wk.baidu.com
ANSYS
Ground heterogeneity
Construction
methods
Soil structure interact-
ion
Nonlinear behavior of soils
• 2.3 Safety control process
2.3.1 Reinforcement control