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Corpo Nazionale Soccorso Alpino e Speleologico 5 th European Cave Rescue Meeting 2011 Starigrad Paklenica, Croatia 15 th – 18 th September 2011 PRESENTATION.

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Presentation on theme: "Corpo Nazionale Soccorso Alpino e Speleologico 5 th European Cave Rescue Meeting 2011 Starigrad Paklenica, Croatia 15 th – 18 th September 2011 PRESENTATION."— Presentation transcript:

1 Corpo Nazionale Soccorso Alpino e Speleologico 5 th European Cave Rescue Meeting 2011 Starigrad Paklenica, Croatia 15 th – 18 th September 2011 PRESENTATION OF RESULTS IN TESTING OF EQUIPMENT, TECHNIQUES AND PROCEDURES OF CAVE RESCUE CNSAS - Commissione Tecnica Speleologica

2 C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011 The Commissione Tecnica Speleologica is a CNSAS committee intended to work on technical subjects Members come from almost regions of Italy Subjects the CTS works on: Design of a new stretcher Design of an helmet for the casualty Real time forces measurement system for rescue maneuver characterization Development of a proprietary wired telephone What is CTS

3 new stretcher helmet rescue maneuver characterization wired telephone Subjects C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

4 -Single UIAA equipment is provided with its maximum ratings -In a rescue system several equipment interact each other -The whole system behavior can hardly be predicted by theoretical thoughts Rescue maneuver (considerations) C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

5 Whats going to happen, anchor by anchor, during the execution of a rigging maneuver? o Strength on each equipment changes instantaneously according to the geometry that changes through the maneuver o Some geometries could lead to unexpected loads What about the residual safety margins? Whats going to happen if something breaks? Could some configuration be simplified? Rescue maneuver testing: why? C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

6 An approach C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

7 A data measurement and recording tool is proposed Portable and on-field operable Simultaneous multiple points acquisition Real time acquisition and analysis Post acquisition data processing Requirements C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

8 Portable and on-field operable C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

9 Simultaneous multiple points acquisition C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

10 The data acquisition system is composed by: 12 strain gauge load cells (0 – 3000 kg) 16 bits USB data acquisition card (National Instruments DAQ) Laptop Home made software for data recording and post-processing System description C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

11 System description: load cells & DAQ C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

12 DAQ BOX USB Operating scheme C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

13 One load cell mounted on each relevant point (belays, stretcher, pulleys, …) All the strengths measured and saved real time Raw graphics available on the fly Post-processing and data filtering is allowed trough an home-made software developed by CTS Finally some graphics are reported for the highlights The data acquisition process C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

14 Load cells positioning C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

15 Home-made software C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

16 Graphic of loads C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

17 The data processing is followed by an in deep analysis: -Graphics analysis and annotation -Live recorded notes -Discussion The results of the investigation are described on a structured technical report Data acquisition results C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

18 Three main sections Introduction: abstract, brief description of the technique and its variants Operating scheme: geometrical data (angles, lengths,..) load cells positions, Data analysis: graphics explanations Conclusions and final discussion Technical report C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

19 Graphics analysis and annotation C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

20 Technical report C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

21 Characterization of the standard rigging techniques adopted and deployed within the CNSAS Analysis of faults Analysis of new techniques (collaboration with the SNATSS - Caving Rescue Technician National School) State of the art C.N.S.A.S. Commissione Tecnica Speleologica Paklenica 16 Sept 2011

22 DONT LET OUR BraIN DOWN BUT… FIRST OF ALL… UPSIDE Thanks for your attention


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