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2001-08-15 19:29:27 +01:00
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2004-04-22 21:43:17 +01:00
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<title>CUCC Expo Surveying Handbook: Drawing Up</title>
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2001-08-15 19:29:27 +01:00
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2004-04-24 12:50:58 +01:00
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<h2 id="tophead">CUCC Expo Surveying Handbook</h2>
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<h1>Drawing up your survey</h1>
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<p>The original notes and sketches should be filed in a clearly marked
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envelope - don't take them out until you are ready to draw up, and put them
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away again as soon as you have finished. They may never be referred to again,
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but ultimately they are the most valuable record of your survey and are kept
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for reference if there is ever a problem.</p>
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<p>Take the printed centre lines and redraw the survey round it, working from
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the original sketches as if this was to be the final published survey. You
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can "invent" details like boulders in boulder-strewn passage, but otherwise,
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draw only what was recorded faithfully in the cave. If this makes your
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drawing look bad - record more next time! If things really are unclear,
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consider taking a copy of this drawing back into the cave to clarify it.</p>
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<p>Make sure the drawing clearly shows the point of connection to previous
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surveys (look at the relevant drawing in the old survey book to ensure the
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sketches match and you really have connected where you think). Make sure you
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note which Question Mark was addressed by this survey and show the location
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of any new question marks, with an estimate of quality and any difficulties
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which will be encountered (eg. if it is a climb, are bolts going to be
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needed ? If a dig, is it a few loose boulders or a crawl over mud?)</p>
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<p>CUCC use a set of symbols pretty close to the standard ones promulgated
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by the BCRA, with occasional differences - such as large-enough boulders
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which are sketched to scale using the US symbol. The current state of
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standardisation for cave survey symbols (a useful guide to what we should
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be using where possible) has been documented by
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<a href="http://www.olsen.ch/~devon/uis/misc/praezis/">Häuselmann,
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Weidmann and Ruder (1996)</a>, but this is up for discussion in 1997.
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An alternative set of standards can be seen from the
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Australian Speleological Federation
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<a href="http://rubens.its.unimelb.edu.au/~pgm/asf/stdsurv.html">here</a>.</p>
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<p>Make sure that you draw both plan and elevation (the latter should be an
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extended section, rather than a projected elevation) for horizontal passage.
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For pitches, several plans at different levels may be easiest (rather like
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the cross sections at each survey station used in horizontal passage). Also
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projected elevations may be useful in addition to the extended section.</p>
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<p>Write a <b>passage description</b>. This should be detailed enough to be
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followed by someone in the cave who hasn't been there before, and should
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include all passage names, lengths of pitches and climbs, compass directions
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when this makes left/right/ahead clearer. If your passage is a connection
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it is worth while writing descriptions from both directions. It will be
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regarded as helpful if you actually type this description into a computer
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rather than writing in the log book - but make sure it can be found again! In
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written descriptions, underline passage names the first time they are
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mentioned, or when they are "defined".</p>
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<p>Complementing the passage description in vertical bits is a <b>Rigging
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Guide</b>. This is usually easiest to do as a sketch, but include notes to
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ensure that all bolts can be found again, and all natural belays recognised.
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Ideally, the knots should be left in ropes removed at derigging, so they can
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be <b>measured</b> for the rigging guide. Remember to do this before undoing
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the knots for rope-washing. Although a good survey and details of the belays
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can be used to estimate the length of rope needed, this is no substitute for
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measuring how much rope it actually took to rig!</p>
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<p>If you did all that properly, there should be very little left to do in
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the UK, unless you have volunteered to help with drawing up the final survey.
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(Fool!) However, it is as well to check that you have done all you can before
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BCRA conference, by reading the <a href="athome.htm">Back in the UK</a> page.</p>
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<!-- This looks like a rather hollow joke in the context of the last year's
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experience: it's now late April 2004, and the 204 survey is only just
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approaching completion. This shows how easy it is for these things to go wrong.
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The chief problems were a change of software and the fact that the Expo printer
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broke down last summer, so a number of surveys never got drawn up. -->
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2004-04-22 21:43:17 +01:00
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<hr />
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<ul id="links">
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<li><b>Expedition Handbook:</b>
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<ul>
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<li>Expo Handbook <a href="../index.htm">Introduction</a></li>
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<li><b>Surveying:</b>
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<ul>
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<li>Surveying <a href="index.htm">Overview</a> and index of
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topics</li>
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<li><a href="what.htm">What is a cave survey?</a></li>
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<li><a href="why.htm">Why am I doing this?</a></li>
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<li>Methods: <a href="how.htm">underground</a></li>
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<li>Pitfalls to avoid, <a href="hints.htm">hints'n'tips</a> to
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make life easier</li>
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<li>Methods: <a href="ontop.htm">surface</a></li>
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<li>Base Camp: <a href="getin.htm">getting it in</a> to the
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computer</li>
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<li>Base Camp: drawing it up, writing the description</li>
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</ul></li>
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<li><a href="../look4.htm">Prospecting guide</a></li>
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<li><a href="../rescue.htm">Rescue guide</a></li>
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<li><a href="../rigit.htm">Rigging guide</a></li>
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<li><a href="../photo.htm">Photography guide</a></li>
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</ul></li>
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<li><a href="../../infodx.htm">Index to info/topics pages</a></li>
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<li><a href="../../indxal.htm">Full Index to area 1623</a>
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<ul>
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<li><a href="../../areas.htm">Area/subarea descriptions</a></li>
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</ul></li>
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<li><a href="../../index.htm">Back to Expedition Intro page</a></li>
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<li><a href="../../../index.htm">Back to CUCC Home page</a></li>
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</ul>
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2001-08-15 19:29:27 +01:00
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</body>
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</html>
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