DCA has installed BP and Eco-anchors in a number of major caves and mines in the region in line with national policy. The number of these is kept to a minimum - it is not the aim of DCA to make caving easier, but to make it safer. (Note that DCA does not install fixed hand-lines and any such found attached to DCA installed anchors are not subject to DCA inspection.)
The caves currently rigged with BP or Eco-anchors by DCA are:
- Bagshawe Cavern †
- Carlswark Cavern
- Devonshire Mine
- Eldon Hole ‡
- Giants Hole ‡
- Hillocks / Whalf Pipe Mine
- James Hall Over Engine Mine (JH)
- Jug Holes
- Knotlow Cavern
- Lathkill Head Garden Path Entrance
- Lathkill Head Top Entrance
- Layby Pot †
- Maskhill Mine
- Merlins Mine †
- Nettle Pot
- Nickergrove Mine ‡
- Odin Mine
- Old Tor Mine †
- Oxlow Cavern ‡
- Peak Cavern, Block Hall
- Robins Shaft Mine
- Rowter Hole
- Speedwell, Cliff Cavern Series
- Speedwell, Pilkington's
- Suicide Cave †
- Water Icicle Close Cavern
- Winnats Head Cave
† Sites with just one simple pitch, no topo included but rope length required listed below:
- Bagshawe Cavern - 15 m Layby Pot - 25 m
- Merlins Mine - Side Entrance: 8 m ladder, 12 m rope; S2 Shaft: 9 m ladder, 15 m rope.
- Old Tor Mine - 7 m (3 m pitch)
- Suicide Cave - 15 m
‡ Sites with ring and wire anchors installed - see below for details.
Titan has been rigged with bolts by the original explorers and details of ropes required to rig this may be found on the Peak/Speedwell website at www.peakspeedwell.info.
Ring and Wire Belays
Ring and wire belays have been, or will shortly be, installed to avoid situations where a rope might otherwise be threaded directly through the eye of an anchor, leading to abrasion wearing a groove in the eye so that the anchor itself would have to be replaced. The two upper ends of the wires are attached permanently to anchors, forming a Y-hang with the ring at the bottom. The ring, through which the rope should pass, is a 10cm diameter steel ring, which is free to rotate on the wire, so avoiding a single abrasion point.
These systems are being installed where there is:
i) a requirement for a pull-thro’ to reach a higher passage or for an abseil on a double rope or where the rope is pulled down afterwards, OR
ii) where a rope, threaded through the ring, is used to lower or lifeline people down.
Rope should never be threaded directly through the eye of an anchor.
Sites where ring & wire belays have been, or will be, installed - rope lengths required (double rope):
- Eldon Hole: Climb up to Damocles Rift - 55 m.
- Giants Hole: Descent from Upper Series into Crabwalk - 30 m. Climb up to Wet Inlets - 20 m.
- Nickergrove Mine: Descent of internal shaft below the traverse - 30 m.
- Oxlow Cavern: Climb up to Pilgrim’s Way - 20 m.
All anchors should be checked before use. Twist the anchor using the fingers, while observing any movement. Slight flexing or rotational movement (+ / - 1 mm) of the anchor is acceptable.
The following points should be checked before using or loading the anchors:
- Looseness or fracture of the rock in which the anchor is placed.
- Grooves or abrasion inside the curvature of the anchor (i.e. the inside contact area of the anchor).
- Obvious damage to the anchor or placement from rock fall.
- Excessive rotation of the resin within the drilled hole.
- Rotation of the anchor within the resin.
- Fracturing of the rock within 20 cm of the anchor placement.
- Egress of the anchor from the resin or resin from the drilled hole.