diff --git a/handbook/survey/drawup.htm b/handbook/survey/drawup.htm index 598d36465..e20c199d1 100644 --- a/handbook/survey/drawup.htm +++ b/handbook/survey/drawup.htm @@ -1,7 +1,5 @@ -
-The original notes and sketches should be filed in a clearly marked -envelope - don't take them out until you are ready to draw up, and put them +
The original notes and sketches will be filed in a clearly marked +wallet - see "Creating a new cave" +- don't take them out until you are ready to scan them, and put them away again as soon as you have finished. They may never be referred to again, but ultimately they are the most valuable record of your survey and are kept for reference if there is ever a problem.
+After typing in all the data in +survex format , run + +aven (the GUI interface to survex) and print out a centre-line plan. +
Take the printed centre lines and redraw the survey round it, working from the original sketches as if this was to be the final published survey. You can "invent" details like boulders in boulder-strewn passage, but otherwise, @@ -36,41 +40,25 @@ by the BCRA, with occasional differences - such as large-enough boulders which are sketched to scale using the US symbol. The current state of standardisation for cave survey symbols (a useful guide to what we should be using where possible) has been documented by -Häuselmann, +Häuselmann, Weidmann and Ruder (1996), but this is up for discussion in 1997. An alternative set of standards can be seen from the Australian Speleological Federation -here.
+here.Make sure that you draw both plan and elevation (the latter should be an extended section, rather than a projected elevation) for horizontal passage. For pitches, several plans at different levels may be easiest (rather like the cross sections at each survey station used in horizontal passage). Also -projected elevations may be useful in addition to the extended section.
+projected elevations may be useful in addition to the extended section. But +learning a good set of procedures for using survex is the way to go. -Write a passage description. This should be detailed enough to be -followed by someone in the cave who hasn't been there before, and should -include all passage names, lengths of pitches and climbs, compass directions -when this makes left/right/ahead clearer. If your passage is a connection -it is worth while writing descriptions from both directions. It will be -regarded as helpful if you actually type this description into a computer -rather than writing in the log book - but make sure it can be found again! In -written descriptions, underline passage names the first time they are -mentioned, or when they are "defined".
- -Complementing the passage description in vertical bits is a Rigging -Guide. This is usually easiest to do as a sketch, but include notes to -ensure that all bolts can be found again, and all natural belays recognised. -Ideally, the knots should be left in ropes removed at derigging, so they can -be measured for the rigging guide. Remember to do this before undoing -the knots for rope-washing. Although a good survey and details of the belays -can be used to estimate the length of rope needed, this is no substitute for -measuring how much rope it actually took to rig!
If you did all that properly, there should be very little left to do in the UK, unless you have volunteered to help with drawing up the final survey. (Fool!) However, it is as well to check that you have done all you can before BCRA conference, by reading the Back in the UK page.
+* As people spend longer and longer at top camp, we may establish a wallet file at top camp +
* As people spend longer and longer at top camp, we may establish +a wallet file at top camp too, with pre-allocated numbers.
The original notes and sketches should be filed in the clearly marked @@ -99,7 +101,8 @@ of what information is in the wallet and where the corresponding survey data is
This is where the scanned copies of the survey notes are kept.
If your initial backup photos of your notes were poor quality, use the scanner in the potato hut to make better copies. Scan to JPEG format as .jpg files. -
Name the scanned pages "notes1.jpg", notes2.jpg" etc. +
Name the scanned pages "notes1.jpg", notes2.jpg" etc. This is important as a script detects whether these files exist +and if you name them something else it will hassle you unnecessarily.
Scanned survey notes are voluminous and so are not kept in the version control system. Instead it is all kept in the file bucket "expofiles" on the expo server in Cambridge. @@ -114,7 +117,7 @@ If you want to do this yourself, or are using your own laptop, then learn how to - as documented for uploading your expo photographs. The correct folder on the expo server is the same as that on the expo laptop- because we set up the expo laptop to be like that. -
[This has been described in several places and we are in the process of consolidating the documentation and getting rid of out of date notes.] @@ -140,11 +143,11 @@ ensure that it is saved, committed, and pushed appropriately.
to be documented
to be documented +
to be documented See drawing up the sketches.
to be documented @@ -154,6 +157,32 @@ ensure that it is saved, committed, and pushed appropriately.
Tunnel only produces plan surveys, but they are very pretty. +
Write a passage description. This should be detailed enough to be +followed by someone in the cave who hasn't been there before, and should +include all passage names, lengths of pitches and climbs, compass directions +when this makes left/right/ahead clearer. If your passage is a connection +it is worth while writing descriptions from both directions. +You will type this description, and pass it on to someone more nerdy who +will file it in the right place. In +written descriptions, underline passage names the first time they are +mentioned, or when they are "defined".
+ +Complementing the passage description in vertical bits is a Rigging +Guide. This is usually easiest to do as a sketch, but include notes to +ensure that all bolts can be found again and any deviations and natural belays recognised. +
+One way of getting the rope lengths for your rigging guide is to +leave the knots in ropes removed at derigging so they can +be measured, but these days our caves are a bit deep +and complicated for this to be feasible . +Although a good survey and details of the belays +can be used to estimate the length of rope needed, this is no substitute for +measuring how much rope it actually took to rig.
+ +to be completed +