新加坡环线地铁工程的设计施工技术与坍塌应急处理方案讲座

1、 GIA Engineers (S) Pte LtdEngineering Overview of MRT Circle Line Projects In Singapore Dr. Zhang Q.H. Oct 2006, China, NanningPossible Topics for TodayGeneral Overview of MRT CCL projects in SingaporeEngineering Challenges and Main Construction Method Design Code and Software used for MRT projects

2、Technical Brief of Incident Nicoll HighWay SGP MRT Protection Code and Instrumentation Work. GIA EngineersMRT Circle Line in Singapre The CCL (Circle line) will be 33.3 km long with 29 stations. Costing $6.7 billion. A fully underground orbital line will interchange with North-South Line, East-West

3、Line and North East Line. The project will be in five stages and to complete in 2021. GIA EngineersCircle Line 1 to 5 mapGIA EngineersBenefits and ChallengesBenefits - Using the CCL, will be able to bypass the busy major interchanges.Challenges -Traffic diversions.Soft soil conditions at the Milleni

4、a and Nicoll Highway stations.Boring tunnels under the Kallang Basin. Interface of tunnels with proposed KPE, DTSS tunnels Upper Paya Lebar/ Airport Road.GIA Engineers$1.39b; 5.4km; 6 Stations; Starting March 2002GIA EngineersCircle Line 1 $1.55b; 5.6km; 5 Stations; Starting August 2002GIA Engineers

5、Circle Line 2 $1.2b; 5.7km; 5 Stations; Starting Oct. 2003GIA EngineersCircle Line 3 $2.5b; 17km; 13 Stations; Starting Oct. 2004GIA EngineersCircle Line 4 &5 1$2.5b; 17km; 13 Stations; Starting Oct. 2004GIA EngineersCircle Line 4 &5 2Construction Method Top-down Construction - Dhoby Ghaut, Museum,

6、Convention Centre, Millenia, Nicoll Highway, Lorong Chuan and Holland stations.Construction of Secant Pile Wall.Construction of Contiguous Bored Pile Wall.Construction of Diaphram WallConstruction of Sheet Pile WallGIA EngineersTop Down ConstructionGIA EngineersTop Down & Diaphram Wall GIA Engineers

7、StrutSlabStrutStrutOpeningDeckingContiguous Bored Pile WallGIA EngineersStruttingSlabSecant Pile Wall GIA EngineersStruttingSlabSheet Pile Wall StruttingSlabGIA EngineersDesign Code & SoftwareBased on British Code. BS5950 &CP65 Structural Use of Steelwork in BuildingBS8004 FoundationBS 8002 Earth Re

8、taining StructureBS 8110 PT The Structure Use of ConcreteBS6399 PT Design Loading for BuildingCommon Used Geotechnical SoftwarePlaxis, Excave97, Wallap, RIDO and Slope/W GIA EngineersGeotechnical Software - Plaxis 2D &3D FEM software for Soil and Rock. Developed in 1987 by Technical University of De

9、lft.Used by 30 over European Country for more than 20 years.GIA EngineersMRT Protection Code 1of 3 GIA EngineersMRT Protection Code 2of 3 GIA EngineersMRT Protection Code 3 of 3Allowable Engineering Parameter:Structure/track Movement in any Plane -15mm Differential movement /Twist 3mm in 6m (1:2000)

10、Peak Particle Velocities (Vibration) 15mm/secChange in Pore Water Pressure 10KN/m2GIA EngineersIncident Nicoll Highway CCL Stage 1 - C824 (1 of 8)GIA EngineersIncident:On 20 of April about 3:30pm Cut and Cover Tunnel Section 9th layer strutting (9 of 10), excavation depth 30mFirst layer of JPG was e

11、xcavated.100m Temporary D-wall collapse; Collapsed Area = 100m x130m of Nicoll Highway4 FatalitiesAffected nearby structure: Overhead Bridge, Canal, Golden Mile towerIncident Nicoll Highway CCL Stage 1 - C824 (2 of 8)GIA EngineersProject OverviewDesign & Build. 1.6Km C&C Tunnel, 800m Bored Tunnel, B

12、LV station.Tem. D-wall with “ bottom up methodSupporting : D-Wall Thx=800m, Depth =38 to 40 m deep, 10 layer struts 2 layer Jet Grouting, 1st 1.5m 28m, 2nd 3mformation levelGIA EngineersIncident Nicoll Highway (3 OF 8)RecoveryGIA EngineersIncident Nicoll Highway (4 OF 8)RecoveryGIA EngineersIncident

13、 Nicoll Highway (5 OF 8)RecoveryGIA EngineersIncident Nicoll Highway (6 OF 8)RecoveryGIA EngineersIncident Nicoll Highway (7 OF 8)RecoveryGIA EngineersIncident Nicoll Highway (8 OF 8)RecoveryReal Time Instrumentation CCL MRT ProjectStrutting Monitoring System VWSG and Load CellStructure Monitoring E

14、L Sensor, VW Cracking, VibrationGround Monitoring In Place Inclinometer, Piezometer Rod ExtensometerMRT Structure Monitoring ATM Survey, Vibration, EL track MonitoringEnvironmental Monitoring Corrosion & VWSG GIA EngineerMonitoring ResultsThe monitoring results consist of ground, structural and envi

15、ronmental monitoring results. All results presented in the real time display and report includes:Horizontal, vertical and lateral deformationsPore pressure changes / Water level changeRotational tilting of structuresVibration and Noise levelSOIL & FOUNDATION PTE LTDInstrumentation Database ServerWeb

16、 ServerReal Time Data VisualizationGround InstrumentStructural InstrumentEnvironmental MonitoringAutomated Survey SystemAcquisition Logging SystemNetwork PrinterGSM ModemGSM ModemAlarm messages sent by emailsAlarm messages on mobile phone or pagersGW Web ClientsService Network Management SystemFirew

17、allAlarm messages sent by emailsAlarm messages on mobile phone or pagersAllow Client to View / Download Data, Report and Method Statement AnytimeAcquisition Logging SystemAcquisition Data SystemAcquisition Logging SystemReal Time Monitoring SystemGIA EngineersGround Monitoring SystemInclinometerVibr

18、ating Wire PiezometerBorehole Rod ExtensometerVW Settlement CellAlarm messages sent by emailsAlarm messages on mobile phone or pagersAlarm Alert SystemAcquisition Logging SystemReal Time VisualizationGIA EngineersStructure Monitoring SystemEL Beam SensorVibrating Wire Crack MeterVibrating Wire Strai

19、n GaugeAlarm messages sent by emailsAlarm messages on mobile phone or pagersAlarm Alert SystemAcquisition Logging SystemVibrating Wire Strain Gauge (Concrete)Real Time VisualizationEL Tilt SensorGIA EngineersCorrosion Monitoring SystemCorrosion SensorAlarm messages sent by emailsAlarm messages on mo

20、bile phone or pagersAlarm Alert SystemReal Time VisualizationCorrosion SensorCorrosion SensorCorrosion SensorAcquisition Logging SystemVibration Monitoring SystemVibration MonitorAlarm messages sent by emailsAlarm messages on mobile phone or pagersAlarm Alert SystemVibration MonitorVibration Monitor

21、Vibration MonitorReal Time VisualizationGIA EngineersAutomated Survey Monitoring SystemAlarm messages sent by emailsAlarm messages on mobile phone or pagersAlarm Alert SystemAcquisition Data SystemReal Time Data VisualizationTarget (Prisms)Target (Prisms)Target (Prisms)Radio / Cable NetworkRadio / C

22、able NetworkGIA EngineersProject PicturesGIA EngineersPictures of CCL Line -1GIA EngineersPictures of CCL Line -2GIA EngineersPictures of CCL Line -3GIA EngineersPictures of CCL Line -4GIA EngineersPictures of CCL Line -5GIA EngineersPictures of CCL Line -6GIA EngineersPictures of CCL Line -7GIA EngineersPict