Status Data Acquisition in TBM tunneling. Lars Babendererde

Transcription

1 Status Data Acquisition in TBM tunneling Lars Babendererde

2 TBM operation without any PLC system No data collection - documentation and quality control via written documents 2

3 Information Transfer TBM operators were the source for what happened during tunnel excavations. 3

4 Information Transfer in the 90 s 4

5 Significant technology jumps since the 90 s So did the TBMs! 5

6 TBM control today Live link to site and other offices worldwide Even remote control possible Documentation with specialised computer programs 6

7 Information Transfer in the 90 s 7

8 Information Transfer nowadays 8

9 TBM control today Increasing use of mobile applications 9

10 General setup of modern data monitoring 10

11 Platform Comparison Argument Local Web Mobile Customization to project Ease of external access Performance Data volume Update Control Application Monitoring No technical limits No installation required, uses RDP launcher, part of operating system Best performance through LAN on project site High capacity within LAN, independent from access (internal/external) Full control over back end server and main application Access for QC and bug handling More difficult, as limited to web browser compatibility Access through browser Same performance for every one through Internet Data display static, operations with high data volume limited in speed Up-date of web browser by user; control over backend Limited to server back end Possession of data On site Virtual Virtual Only limited to device s operation system and capability At hand and anywhere Same performance as other solutions, depending on net quality Data display static, operations with high data volume limited in speed Up-date of app by user; full control of back-end Feedback by app; bug handling by app up-dates Server costs after TBM excavation None to minimal Continued rent Continued rent 11

12 Data points by TPB type Geo-Monitoring STP Belt Conveyor Grout/Rocksupport TBM 0 EPB Slurry Multi Mode Double Shield Main Beam Ground Geo-Monitoring: modest application for metro tunnel 12

13 Information Flood Human being incapable of overseeing the information Filtering and sorting required by Graphical processing for better overview Automatic reporting Automatic monitoring and alarming based on pre-set levels Saving of all data for later back-analysis as required 13

14 Project data volume Assumption: 2000 data points (1 TBM plus modest geotechnical monitoring) 1/10 sec 1/1 sec 213 GB Avg. server size: 600 GB 1 TB Cost differences: 21 GB approx. USD 1, MB 600 MB with technical enhancement: approx. USD 6,000 Data volume per day Data volume per year Cost difference not relevant! 14

15 CASE 1 Main drive damage due to torque peaks Subway tunnel project Bull gear damage due to peak loads from one drive motor Discussion between manufacturer and contractor about the overload source: geology/operation or technology/equipment Standard 10 sec data sampling showed torque within permissible limit 15

16 CASE 1 Main drive damage due to torque peaks Failure investigation with 10 sec frequency showed one torque peak passing the trigger level at 80%. 16

17 CASE 1 Main drive damage due to torque peaks Data stream with 1 sec frequency showed a lot more torque peaks than earlier anticipated. The following investigation revealed that the torque limiter was the root cause of the damage. The release mechanism of the clutch lost its prestressing over time. Would not been detected by 10 sec frequency 17

18 Building Information Modelling (BIM) Data Acquisition and Management Software can support BIM applications in tunnel projects with selected data and information, concerning the final structure. Global Position Type of ring (concrete, reinforcement, connectors, etc.) Volume of excavated material Orientation of the ring Damages and Repairs Grouted volumes behind the ring 18

19 BIM Collaboration Formats The collaboration format defines the level of system integration during design and construction. Level 0 Level 1 Level 2 Level 3 Pre-BIM Object-based Modelling Model-based Cooperation Network-based integration Unmanaged CAD Managed CAD in 2D or 3D Managed 3D environment with separate BIM tools (for example Revit) Paper or pdf exchange and information Collaboration by providing common data environment and standard data structures and formats Integration into an single exclusive model, based on the separate BIM tool. Open process and data integration Work within web-based software and in a collaborative model server. Software standards required! Level 2 is currently in the implementation in tunneling, but still needs to define THE global BIM tool for implementation. Additionally, the definition for the tunneling processes and objects need to be globally standardized. Level 3 would require standards for the collaborating software solutions themselves to permit seamless interaction. 19

20 BIM Level of Development LoD Further challenge for the Data Management and Visualization Software is the implemented Level of Development for tunnels, to be exported into the BIM model. LoD Description 100 Conceptual model where parameters like area, height, volume, location and orientation are defined. 200 General model where elements are modeled with approximate quantities, size, shape, location and orientation. Non-geometric information can be attached to the model elements. 300 Accurate modeling and shop drawings where elements are defined with specific assemblies, precise quantity, size, shape, location and orientation. Here too, non-geometric information can be attached to the model elements. 350 It includes model detail and element that represent how building elements interface with various systems and other building elements with graphics and written definitions. 400 Model elements are modelled as specific assemblies, with complete fabrication, assembly, and detailing information in addition to precise quantity, size, shape, location and orientation. Non- geometric information to the model elements can also be attached. 500 Elements are modeled as constructed assemblies for maintenance and operations. In addition to actual and accurate in size, shape, location, quantity, and orientation, non-geometric information is attached to modeled elements. Source: NBIMS-US 20

21 BIM Level of Development LoD 300: The amount of data to be computed and to be transferred into BIM system could be quite substantial, though with limited variation in information. ID; Name; Location ID; Name; (Global); Location Orientation; (Global); Shape, Orientation; Dimension; Shape, Material; Dimension; Production; Material; Weight Production; Weight ID; Name; Location (Global); Orientation; ID; Name; Shape, Location Dimension; (Global); Orientation; Material; Production; Shape, Dimension; Weight Material; Production; Weight ID; Name; Location ID; (Global); Name; Orientation; Location (Global); Shape, Orientation; Dimension; Shape, Material; Dimension; Production; Material; Weight Production; Weight ID; Name; Location (Global); Orientation; ID; Name; Location Shape, Dimension; (Global); Orientation; Material; Production; Shape, Dimension; Weight Material; Production; Weight ID; Name; Location ID; Name; (Global); Location Orientation; (Global); Shape, Orientation; Dimension; Shape, Material; Dimension; Production; Material; Weight Production; Weight ID; Name; Location (Global); ID; Name; Orientation; Location (Global); Shape, Dimension; Orientation; Material; Shape, Production; Dimension; Material; Weight ID; Name; Location (Global); Production; Orientation; Weight Shape, Dimension; Material; Production; Weight ID; Name; Location ID; (Global); Name; Location Orientation; (Global); Shape, Orientation; Dimension; Shape, Material; Dimension; Production; Material; Weight Production; Weight ID; Name; Location ID; (Global); Name; Orientation; Location (Global); Shape, Orientation; Dimension; Shape, Material; Dimension; Production; Material; Weight Production; Weight ID; Name; Location (Global); ID; Name; Orientation; Location Shape, (Global); Dimension; Orientation; Material; Shape, Production; Dimension; Weight Material; Production; Weight ID; Name; Location ID; Name; (Global); Location Orientation; (Global); Shape, Orientation; Dimension; Shape, Material; Dimension; Production; Material; Weight Production; Weight ID; Name; Location (Global); Orientation; ID; Shape, Name; Dimension; Location Material; (Global); Orientation; Production; Weight Shape, Dimension; Material; Production; Weight ID; Name; Location (Global); ID; Orientation; Name; Location Shape, (Global); Dimension; Orientation; Material; Shape, Production; Dimension; Weight Material; Production; Weight ID; Name; Location (Global); ID; Orientation; Name; Location Shape, (Global); Dimension; Orientation; Material; Shape, Production; Dimension; Weight Material; Production; Weight ID; Name; ID; Location Name; Location (Global); (Global); Orientation; Orientation; Shape, Dimension; Shape, Dimension; Material; Material; Production; Production; Weight Weight ID; Name; Location ID; Name; (Global); Location Orientation; (Global); Shape, Orientation; Dimension; Shape, Material; Dimension; Production; Material; Weight Production; Weight 21

22 BIM Level of Development LoD 200: With a reduction of one level down the amount of data could be substantially reduced w/o substantial lack of knowledge. ID; Segment E; Location (Global); Orientation; Shape; Dimension; Material; Production; Weight ID; Segment K; Location (Global); Orientation; Shape; Dimension; Material; Production; Weight ID; Grout Volume; Location; Dimension; Material; Production; Weight ID; Segment A; Location (Global); Orientation; Shape; Dimension; Material; Production; Weight ID; Segment D; Location (Global); Orientation; Shape; Dimension; Material; Production; Weight ID; Damage; Location (Global); Orientation; Shape; Dimension; Material; Repair; Photo ID; Damage; Location (Global); Orientation; Shape; Dimension; Material; Repair; Photo ID; Segment B; Location (Global); Orientation; Shape; Dimension; Material; Production; Weight ID; Segment C; Location (Global); Orientation; Shape; Dimension; Material; Production; Weight 22

23 Building Information Modelling (BIM) BIM in the US: NBIMS-US International Tunnelling Association ITA Working Group 22 Animateur: Juri Karlovsek Vice Animateur: Paolo Cucino University of Queensland SWS Engineering S.p.A. St. Lucia, Australia Trento, Italy 23

24 Summary TBM data acquisition is continually improving as the technology permits more possibilities Remote live access to thousands of data points is possible Adequate software support is necessary to manage the flood of information High data rates and many data points are recommended for optional back analysis. The related costs for hardware are negligible. Data Management and Visualisation Systems can play a significant role as data source as well for future BIM projects. 24

25 Thank you for your attention!