Introduction
The anchor scheme came about in early 1990, as a need was identified by the CNCC, to replace spit anchors that where either failing or whose life looked to be short, and would require replacement.
The issue with replacement of the spit anchors, was the proliferation of spits when older ones had passed their useful life, this issue affected the placement in both good rock and also quality of rope hang from the new positions. To this end the CNCC with the backing of the National Caving Association (Now BCA), started a program of research into suitable anchors, resins, and establishing best practices for the installation of the anchors.
The Anchor scheme, undertakes to train installers of anchors, to log all installations, and to provide insurance for all registered installers, and the anchors they have placed.
Summary
General
Eco/Peco resin bonded anchors that are to be included on the BCA anchor scheme insurance must only be installed by cavers who have been trained under the scheme approved by the British Caving Association and have the authority of the Regional Council.
BCA E&T Committee will agree the procedure for installing anchors under the scheme.
Regional Caving Councils (RCC) should appoint Regional Co-ordinators for anchors. Regional Co-ordinators will advise BCA Equipment and Techniques (E&T) Committee of all trained competent installers. Regional Co-ordinators will issue any revision of installation procedures to all competent installers.
BCA will provide insurance for all recognised Installers and Regional Co-ordinators.
BCA E&T Committee may conduct audits of the scheme.
Installation
Installers must be competent in SRT, rigging and identifying new anchor positions and must be approved by RCCs. Such persons will be trained by BCA appointed trainers. Following initial training all qualified installers must attend a workshop and be re- validated every three years.
Records
The Regional Co-ordinator or deputy will keep records of all anchors placed under the scheme plus records of their inspection. The Regional Co-ordinator will also keep records of any defect reports made and their follow up. The BCA Membership Administrator will keep a record of all trained installers.
Inspection
All anchors should be checked before use. Twist the anchor using the fingers, while observing any movement. Slight flexing or rotational movement (+ / – 1mm) 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 20cm of the anchor placement. Egress of the anchor from the resin or resin from the drilled hole.