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TBM SHIEL MACHINE

CONTENTS. Brief Introduction Projects Location Map Classification of CTG TBM / Shield TBM/Shield Excavation DataTBM

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TBM SHIEL MACHINE

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    1. TBM & SHIEL MACHINE

    2. CONTENTS Brief Introduction Projects Location Map Classification of CTG TBM / Shield TBM/Shield Excavation Data TBM & Shield Tunneling Typical TBM/shield Project Experience Research & Development

    3. Brief Introduction China Railway Tunnel Group is the national large-scale construction enterprise with special grade qualification, whose business lines are: design, construction and technical service for various long tunnel & underground works, comprehensive railway project, highway project of various classes, bridge, tunnel, water conservancy and hydro-power tunnel works, municipal project, industrial & civil buildings, coal mining works etc. It is a technology group integrating design, construction, scientific research and manufacture into a single entity.

    4. China Railway Tunnel Group has been devoting herself to the research, development and application of new technology for tunnel and underground works, and has been successively conducting technical exchanges and cooperation with dozens of countries and regions as Germany, Japan, England, France, and Sweden, etc.. She keeps in the leading position in international underground engineering field, especially in the construction of tunnels and underground works.

    5. In the past decades, China Railway Tunnel Group has participated in various railway trunk lines and metro projects in China. She has built over 600 railway tunnels, totaling more than 800km long, extra-large and large bridges totaling over 50km long.

    6. Since the 1980s China Railway Tunnel Group, supporting by her abundant technical resources and rich tunneling experiences, has conducted the researches on TBM and shield machine. In the early 1990s, she has designed and manufactured independently the China’s first blade shield which has applied successfully in Beijing Metro project. In the middle 1990s, she has imported the world’s most advanced TBM, 8.8m in diameter, from Germany. In the late 1990s, she has imported successively 6 EPB shield machines and 1 slurry shield machine from Germany which has successful applied in the metro projects in Guangzhou, Nanjing and Shenzhen.

    7. The successful application of TBM and shield machines marks that China’ tunneling technology steps into a new epoch and reaches international advanced level. Currently, China Railway Tunnel Group is the sole enterprise that has project achievements and management experience in hard rock TBM and shield machine in China. Through nearly 20 years technology researches and applications of TBM and shield machine, China Railway Tunnel Group has trained a large number of middle and young aged experts in technology and management, and formed an engineering technical team with rich experience.

    8. With “take a lead in China and be famous in the world” as enterprise target, China Railway Tunnel Group is implementing the strategy of tapping international market, strategy of capital operation, strategy of relying on science to rejuvenate the enterprise, strategy of quality and brand, strategy of joint venture, as well as talent solidarity mechanism, financial accumulation mechanism, management innovation mechanism, technological progress mechanism and self-discipline mechanism. Only thus can we make she be a world-class Chinese enterprise in TBM & shield machine industry.

    9. PROJECT LOCATION MAP

    10. LIST of TBM/SHIELDs Owned by CTG

    11. TBM/SHIEL EXCAVATION DATA TBM/shield total excavation length: 160km 1) Hard rock TBM excavation length: 59.257km Open-type TBM: 38.089km Double-shield: 21.168km 2) Shield excavation length: 110.079km EPB shield: 96.631km Slurry shield:13.448km 3) Underwater shield excavation length: 18.267km

    12. TBM/SHIELD TUNNELING

    13. TBM/Shield Tunneling CTG own 19 sets of shield machines & 3 sets of TBMs. In 1997, CTG imported the first hard rock TBM, and completed the constructions of Qinling Tunnel on Xi’an-Ankang Railway Line and Mogouling Tunnel on Xi’an-Nanjing Railway Line successfully. Through Qinling tunnel construction, CTG has mastered TBM excavation techniques, advance geological forecasting, advance reinforcement technique, spring treatment in fault and broken zone, and excavation technique in soft & weak rock etc.

    14. In 2000, CTG started tunnel excavation with shield method. Up to now, CTG has undertaken 26 shield tunneling projects and 4 hard rock TBM tunneling projects. During the construction of Yuesan Section tunnel of Guangzhou Metro Line 2, CTG has solved the construction difficulties such as the unbalance of rock hard & soft, drive mode exchange and mastered shield construction technique. CTG has accumulated rich shield tunneling organization & management experiences in the complex geological and surrounding conditions.

    15. TYPICAL TBM/SHIELD PROJECT EXPERIENCE

    16. Typical TBM/Shield Project Experience Tunnel Name: Yuesan Section Tunnel of Guangzhou Metro Line 2. TBM: 2 sets Diameter: 6.25m Length: 3926m Project feature: It passes through 65m long guangcong fault zone. It passes under 14 tracks of Guangzhou Railway Station. It passes under 145 buildings and 56 pipelines Present status: Completed.

    17. Typical TBM/Shield Project Experience Tunnel Name: Dahan Section Tunnel of Guangzhou Metro Line 3. TBM: 2 sets Diameter: 6.25m Length: 7397m Project feature: It passes through the fault zone with plenty water. The ground is uneven in hardness. The earth strength varies between 30 – 157 Mpa. Present status: Completed.

    18. Typical TBM/Shield Project Experience Tunnel Name: Xiaoxin Section Tunnel of Guangzhou Metro Line 4. TBM: 2 sets Diameter: 6.25m Length: 3180m Project feature: The tunnel slope is 5% max. It passes under the sea with 510m length, and water depth is 5 – 17m, and min. overburden is 8.5m depth. Its geology condition is complex and its strength is various between 3 –120Mpa. Present status: Completed.

    19. Typical TBM/Shield Project Experience Tunnel Name: Fuhui Section Tunnel of Shenzhen Metro Line 4. TBM: 2 sets Diameter: 6.25m Length: 1090m Project feature: It passes through F1 fault & broken zone. The earth is soft in the upper part and hard in the down part, and the difference (between 3 – 150MPa) is large. Present status: Completed.

    20. Typical TBM/Shield Project Experience Tunnel Name: TA15 Section Tunnel of Nanjiang Metro TBM: 2 sets Diameter: 6.39m Length: 4548m Project feature: 400m tunnel section passes under Xuanwu Lake. The tunnel also passes under the old city wall and a highway tunnel, and Longfan Road Tunnel of Nanjiang Railway Square. Present status: Completed.

    21. Typical TBM/Shield Project Experience Tunnel Name: West Extension Line Tunnel of Shanghai Metro Line 2 TBM: 1 sets Diameter: 6.39m Length: 2651m Project feature: It passes under the buildings and pipe lines with near distance . Present status: Completed.

    22. Typical TBM/Shield Project Experience Tunnel Name: Shanghai Metro Line 6 TBM: 1 sets Diameter: 6.39m Length: 2651m Project feature: It passes under the approach bridge of Nanpu Large Bridge, the underground pipe lines and buildings with near distance. It pass through Bailanjing River with only 4.5m overburden. Present status: under construction

    23. Typical TBM/Shield Project Experience Tunnel Name: Underwater Heat & Water Supply Piping Tunnel of Guangzhou University City TBM : 1 sets Diameter: 6.25m Length: 1347m Project feature: It passes under Zhujiang River with 450m length where the overburden is 7.3m. Present status: completed

    24. Typical TBM/Shield Project Experience Tunnel Name: Guangzhou Metro Line 3 TBM : 1 sets Diameter: 6.25m Length: 3470m Project feature: It passes under Zhujiang River with 400m length and its overburden is 7.3m. Present status: completed

    25. Typical TBM/Shield Project Experience Tunnel Name: Lot 19 of Beijing Metro Line 4 TBM : 2 sets Diameter: 6.39m Length: 5072m Project feature: It passes through coble stratum, and passes under Yuanmingyuna Lake. Present status: under construction

    26. Typical TBM/Shield Project Experience Tunnel Name: Chongqing City Drainage Underwater Tunnel TBM : 1 sets Diameter: 6.6m Length: 908m Project feature: It passes under Yangtze River , where the river water is 37.5m deep, river bottom overburden is 9m thick, and max water pressure is 6 bar. Present status: completed

    27. Typical TBM/Shield Project Experience Tunnel Name: Chengliangji Underwater Tunnel TBM : 1 sets Diameter: 3.2m Length: 2011m Project feature: It passes under Yangtze River with 1500m long , and river bottom overburden is 8.5m, and max water pressure is 0.66 bar. It passes through the fault & broken zone, with max fault zone being 11m wide. Present status: completed

    28. Typical TBM/Shield Project Experience Tunnel Name: Shenzhen Qianwan Power Plant Underwater Piping Tunnel TBM: 1 sets Diameter: 3.2m Length: 1230m Project feature: It passes under the sea and river bottom, with overburden being 12m thick, and max water pressure being 0.66 bar. Present status: completed

    29. Typical TBM/Shield Project Experience Tunnel Name: Wuhan Yangtze River Tunnel TBM : 1 sets Diameter: 11.38m Length: 5049m Project feature: It passes under Yangtze River where the river bottom overburden is 10m deep, and max water pressure is 6 bar. The ground is mainly sand stratum. Present status: completed

    30. Typical TBM/Shield Project Experience Tunnel Name: Huanghe River Tunnel TBM : 1 sets Diameter: 9m Length: 4250m Project feature: It needs the long distance excavation under water.and slurry water needs long-distance pipe pumping. Tunneling in Mengshan Section needs large slope penetration. Present status: under construction

    31. Typical TBM/Shield Project Experience Tunnel Name: Qinling Railway Tunnel TBM : 1 sets Diameter: 8.8m Length: 8000m Project feature: It passes through fault & broken zone and passes supper hard rock (300MPa). Present status: completed

    32. Typical TBM/Shield Project Experience Tunnel Name: Mogouling Railway Tunnel TBM : 1 sets Diameter: 8.8m Length: 5000m Project feature: It passes through soft & weak rock . Present status: completed

    33. Typical TBM/Shield Project Experience Tunnel Name: Dahuofang Water Transfer Tunnel TBM : 1 sets Diameter: 8m Length: 20000m Project feature: Soft rock, long-distance ventilation, continuous transport, assembly & disassembly inside tunnel Present status: completed

    34. Typical TBM/Shield Project Experience Tunnel Name: Yindajihuang Water Transfer Tunnel TBM: 1 sets Diameter: 5.93m Length: 19940m Project feature: long-distance ventilation & transport, fault & broken zone, high-pressure full water & coal gas stratum, high earth stress. Present status: under construction

    35. TBM/SHIELD RESEARCH & DEVELOPMENT

    36. Research & Development In Aug. 2002, CTG established TBM/shield industry base. After its establishment, CTG has conducted 4 items of State 863 Scient. & Research Program

    37. TBM/shield Design & Manufacture CTG has completed design of D6.3m EPB shield machine, and completed the research, design & development & manufacture of shield cutterhead. In July, 2004, CTG completed the research & manufacture of cutterhead, cutter , hydraulic system for application to the 2650m long excavation of shanghai Metro Line 2, in which average monthly advance rate of 331m and max monthly advance rate 470m were achieved. In Dec., 2005, it completed the research & manufacture of shield cutterhead suitable for sand & gravel stratum of Beijing Metro Project.

    38. Manufacture of Complex Shield & Hard-rock TBM In May, 2005, CTG manufactured D 6.21m complex shield for construction of Xiaoxin Section Tunnel of Guangzhou Metro Line 4, and construction of Lot 19 of Beijing Metro Line 4. In Dec. 2005, CTG manufactured D8.3m open-type TBM for construction of Dahuofang Transfer Water Tunnel.

    39. Design & Simulation Test of Big Diameter Slurry Shield CTG has completed design of D 9m slurry shield. CTG has completed Design & manufacture of control system simulation test platform. The diameter of simulated shield is 2.5m and it is the only one physical simulation test platform in China with intellectual property rights.

    40. Back-up System Manufacture CTG has researched & developed the frequency conversion locomotive, 40t portal crane, muck car, mortar car, segment car etc, transport equipment of back-up system with patents. Some products were sold aboard.

    41. Research & Manufacture of Cutterhead

    42. Design of Hydraulic System

    43. Segment Mould in three-dimensional Design

    44. State patented products: Series Products of Backup Haulage Equipment

    45. State patented products: Cutter

    46. Research on Microtunneling Machine

    47. Microshield Machine Scheme in Design

    53. THANKS CHINA RAILWAY TUNNEL GROUP Co., LTD.

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