CCRC VY Newsletter No.44 Summer Meets. JUNE Sun 4th Litt£e HuLL Pot. Penyghent, Yorkshine NGR SD 821744 Grade.4 Depth 98m Length 1.1Km Sat 10th Bixks Fell Cave: Upper Whangdate, Yorkshine NGR SD 931769 Gaade 4 Depth 142m Length 4.6 Sat 17th Dan Y Ogog. Brecon Beacons, South Wales Gnade 3-4 Depth ? Length 15km JuLy Sat 14% Washgokd Pot. Agum Pot Anxea, Yorkshine NGR SD 774765 Grade 5 Depth 112m Length 312m Sun 9th Pippikin Pot / Link Pot. Castexton, Yorkshinc. Pippikin. NGR SD 667800 Grade 4 D 142m L 7Km Link Pot. NGR SD 668803 Grade 3 D 85m L 3.2Kh Sat 15th S£Laughter Stream Cave. Forest of Dean, Gkouceste! NGR SO 582137 Grade 3-5 Depth"? Length 11km Sun 23nd Long Rake Mine. Bradwekt, Derbyshine. NGR 153808 Grade 4 Depth 150m Length 160m Sat 5th Gaange Rigg Pot / Chalstmas Pot. Yorkshire Grange Rigg. NGR SD 755727 Grade 4 D 87m L 56pm Chaistmas Pot. NGR SD 757727 gaade 3 D 75m L 13%m Sun 13th Whitescar Cave. Yorkshine. NGR SD 712745 Grade 3 Depth ? Length 6.5Km (Show Cave) Sat 19th Lost Johns. Leck gel, Yorkshine. NGR SD 670786 Grade 3-4 Depth 141m Length 6Km RIGGING IN LANCASTER HOLE During September the ladders from Fall pot and Stake pot vere removed, this was done for two reasons; 1; The ladders had been in place since 1949 and vere. second hand railvay signal ladders when they were put in, 2, They vere heavily used especially by large parties doing @ through trip fron Lancaster hole to County pot, a reduction in the number of parties doing a through trip vill help conserve and reduce erosion of the cave, especially the high level fossil series, The pitches have been rigged with resin bonded Eco hangers, Ladders and lifelines or $,R,T, nay be used, The Stake pot one is self explanatory. Fall pot, two alternative rigs are possible, the old ladder route can be rigged with a re- belay hang past the tvo ledges, An alternative and better route leads off from the south east end of the top Level of Fall pot, on the opposite wall to the old ladder location via a traverse along a vide ledge to a straight 14 retre hang, ELL TRAVERSE ROUTE , OLD LADDER ROUTE > | 14M PITCH STAKE POT 8M TO BOBS BOS: —_— ITCH 2 eel 2 DOSUDMS S66b JoIo1eqn SUN! GE-VE — sWAmuod 110} SI9ADO NOU ‘ADP SU}. UO LUD Q0'DL-0¢"g USEMJeq $| SAOUSHIOM JO} UOYDYsIBayy (NAO UNOA SNS) WHDIA. SAN 4 HIIM “BAId JO SINWAL SOS NOTWHINSd ¥ 39 THM 33H, SO3IdIA Luv samo. “SSTVM'D'D Java anos3a ASAL JdOu Vdoe | YON SAV TdsIC| SHISNIRID Lav OIA SCUVONVIS NID Noave ADOT! NOLVWAUASNOD SNIAIG ONISON NOUVS01 olava Qiv Isuld___ SAAISO1dX4 ONISSIG ONIIOG = OISVE LS GIONVAGY Lus SNIATAUNS AHdVUODOLOHd ASOIONGAH 4901039 ASOTWHOUY [SdOHSHIOM | “yeays iy Jo 49eq OY) UO WHO) Su) Buln ‘Ajlea Yoog silas pue S@0USAGXS UIA BINGUIUOD OF aneY NO, SseooNs e sey ay} @YeLU O] Uo oy Alen ale aoljod jeo0] ayL ey SION) ‘9 “suaweSueu 1nq papinoid aq jm UoRepoLULCD9e 40 1S|| Yooq aid NOA 4} ‘edi BUS HO JO} "JAIgYVO ON 1286 Bune ume inoA Bu} you ed 342} 0} SI ap! ay “juan UoNe BOOKING FORM ME ADDRESS POST CODE There are three options. A) Allin, both days, Entrance, Workshops, Camping and Stomp, (Includes food at Stomp only). B) Saturday only, Entrance,Workshops and Stomp. C) Sunday only, Entrance, Workshops, COST No, Req. Total TIMETABLE. FRIDAY 23 FEB. 16.30 ON REGISTRATION 19.00 BAR 22.00 SLIDE SHOWS SAT. 24 FEB. 8.30/10.00 WORKSHOP REG. 10.00/16.00 WORKSHOPS 18.00 PENTATHLON 20.00 STOMP 21.30 FOOD SUN.25 FEB.. 8.30/10.00 WORKSHOP REG. 10.00/16.00 WORKSHOPS 16.30 CLOSE The main venue be the Brickwork’s Quarry just beyond The Stomp is a live band and during breaks there will be slide shows in the Brickwork’s Quarry. Trade stands ete. will be all day and there will be caving trips if Il be provided but you must be reserve ABER Redacted MASKHILL MINE. ECO-RESIN HANGERS - TEST DATE: 9 July 1994 LOCATION: Dingle Quary, Dalton, Lancs, SUPERVISED: Les Sykes of CNC. Three hangers were installed on § July 1904 by Les Sykes using the corect method of placement. Above © the hangers ME" self drilling bolts were placed to hold the gous The third hanger had a thermometer placed against the hanger and in the resi toa depth of 4S A.00.01-10mm gauge was used to record the niovement of the hangers in the direction bof the loud. These were held in place by the pre-installed "MB" self drilling butts The readings for the eriueal load pont are approximate as we were unable to take this reading accurately Critical Load Point: The point at which the rope and hanger arrest the fall of the weight At Rest Under Load: The reading that was taken after the FF. once the weight had stopped moving OM Load: ‘The reading that was taken when the loud used for the drop test was removed thus. no Inad on the hanger The following drop tests were done using #765 Kg weight. A Fall Factor | was incurred for each drop test HANGER 1 This was placed with the lead | beanng curvature —peunting dowuwands, as it would be used | STATIC STRESS TEST: For tus test the hanger was lenuled with #9 Kg., the type of loading drop dung ev lay usage. Under je =: in position. 4 Feading af O.06nN 88s recemled. DROP TEST RESULTS DROP TESTS: Dunng the next 5 drop tests the gauge wus not zeroed after euch drop test. ‘The following readings were recorded: Test Critical = AtRest’ «OMT No. Load Point Under Load Load 1 00.20mm —00.10mm —00.02Smm 2 00.60mm —00.2Inm—00.12mm 3 00.80mn —00.26nin 00.17 mm 4 OL1Omm —00.2%mm—G0-19mm 3 OLjnum 00.24 The results of the drop tests confinn that hus considerable strength and an absorb the energy created during a retained its sntegnity and shape. tt would not dim af a hanger bik cor BY USINg € be possible to asee sustained fall fa alone. Although the readings ut the enti load point are significant, up to 13am on the Sth, drop west. the hanger dees not bend 24mm unloaded after § drop considerably tests The importance of radius the lower © of the dniled hole tw accept the hanger ensures tha to the roek. thus reduc hanger during tals and general usage HANGER 2 This was placed using tire correct method of placement but the foad beanng curvature was foarallel co the ground, 85Kg bounce je the hanger was in w TESREGOP — ionzwmal positon. This was to test far moventent of hangers in traverse lines where the thot ben Lune wath dhe han STATIC STRESS TEST. The Tadd sth 8S Ky. aml reading was recorded, When off loaded read 00, 17tmm was recorded rand the we Tor 30 seconds. hhanging on triverse lines amd Bouncing in the During the maximum reading oF 0.500 was observed When off leaded reads of 0.189 5 € Was 2 was loaded ‘was bounced Thus was fo simulate cavers houne 1t ma Pot-holer in cave drama Coarse mete maak an oe ie ibe ery iit aor Sara er Serie en tera pubes Seer ree recorded. (Remember the gause was zeroed after the previous test.) This moventent af 050mm 1s equivalent to 2 tonque of 40psi/S.5Kg Metres DROP TEST 1: A 76.5 Ke. weight was used and a Fall Factor | was incurred. Because of the angle of the kanger to the Toad. the hanger tent at the head of the shank. chus the load hearing curvatures of hanger were rotated 5.50nim in the direct fof the foxud. At this point the resin had not cracked oF When off leaded the hanger retained its S.Smm deflection, DROP TEST 2: A 765 Ke used and a Fall Factor | was created critical toad point the resia eracked hhanger rotated further towards the direction of the load. The deflection was too great co measure on a (0.01-10mIm gauge. Although the hanger had obviously Tailed. dere was ie rotational movement NOTES ARISING FROM THE DROP TESTS There is normally more than one hanger in a wverse line. therefore the type of lea and the fall factor used would not cecur during onal caving. Any loading of the inverse fine would be shared between hangers. hus reducing the This, though, ed. weight was At the and te is not sctly true because whew ngeine travenes the person ngsing should ensure that the averse line 1s kept taught tn the event of a fall on the traverse line thes sould produce an angle of about 170" in the Line at the posit ot loading. This would result i a 100 Kg. ongn about 146 Ky. on each hat load of abut 2292 Ke. practice and bul nuged with excessive slick would ofler Iouuling producing " ef, sith a nal Considered bad © ELDON HOLE QUARRY The quarry application which owners, asks to continues for approximately the quarry outside its present RMC will be extend the putting in a time seven years without the iimits.The company planning which working need to extend state that this for would allow them to make a better job of restoring the excavation to appear more like a natural landform. Currently the permission runs out in 1997 and a Public Enquiry a few years ago refused application for extensions. As part of their public relations exercise the quarry held an “Open Day" for cavers on 3rd December and several dozen cavers were able to have a good look round, ask questions and also to investigate some open cave passage just broken into by recent blasting, Naturally DCA will be looking very closely at this application and will be seeking veiws from local cavers and cave scientists before deciding what line the application. CLATTERWAY SOUGE should be taken in relation to Cottage and now owned by Mr M Cruttenden. The new phone number is ‘Contd. from prev. page lesser loaded angle of rope, resulting in a reduced loading of individual hanger The test was extreme. to test the flexibility of resin bonded hangers: as the result stows, the hanger bent but held the load without failure. Wis apparent from the staic stress test and the bounce fest that the hanger does move wen loaded from the side, as in traverse lines. In fact. as a caving group progresses along the taverse to the head of the pitch, each hanger is being mul directionally loaded. If cavers use the rope to pull themselves up/along or hang in their hhamesses in mid-traverse, then considerable sMress is being placed upon the hanger and resin bond ‘Although the hanger and resin bond possess strength and flexibility. the type of actions mentioned above will, ultimately. weaken the resin bund prematurely. This, ‘hough, wil not lead to a rapid failure ofthe hanger or resin and may only show as a slight rotational movement in tinse. feel that it WOULD NOT eamprontise the safety of the user as hangers that have had slight rotational movernent have proved stubbom and hard to emowe. ‘When using traverse lines the body weight, should be kept on the feet and hand holds: the tuverse line should be used as u safety fine, not ax a means of suspension when teaver The practice of driving a groove with 3 chisel in the base of the hole: for about 45mm will increase the-surface area of the resin and help alleviate slight rotational movement. All installers) who have amended the eco-resin traning will be seat fan amended training procedure, HANGER 3 es This was. installed 3 so metres above the ground using the correct method. "A thermo- meter was inserted with the hanger to a depth of 45mm, half the depth of the hanger. and was in contact with the hanger and the resin, ‘The test was Set up to ascertain what amount of heat build up would be created when a load is lowered on a rope through the eye of the hanger. ASI Ke. weight was used for this test. The temperanure reading before the start of the test was 22°C. After 10 ascents and lescents of the load, a teal travel distance of dim. the hanger was too hot to touch although the reading on the thermometer remained at 22°C. A further 10 ssvents and descents were conducted. The reading on the thermo meter remained at 22°C although the ropeflanger contact ara was extremely hot. After 3 minutes the hanger could be touched seithout sustaining a bum. 6. sikg The test did glaze the rope and it was vious the rape had been mis-used. ‘The hanger had a shiny area where the ‘contact had taken place, although there was Ro obvious groove. NOTES: This test was conducted mainly for the B.M.C, who “lower off” after a climb. + ‘The test was conducted using a dry. clean rope. A wet rope would have reduced friction, resulting in a lesser temperature increase on the exposed hanger but a dirty rope would definitely abrade the hanger's contact curvatures and reduce the diameter of the contact curvature to 6mm (the ‘minimum) prematurely. There is obviously no appreciable heat build up that is transmitted to the resin oF down the shank of the hanger. Generated heat obviously dissipates effectively through the surface medium, | would not recommend that hangers are lused in this way. especially underground, where the ingress of gnt is inevitable, Pulleys, krabs wr maillons should always be used. Where this practice is the non then a ‘careful, regular check should be ntaintained o ensure that the hangers st ‘inimuny Gunn in diameter i Should any of these test results be re produced or copied, then the source of the information must be quoted. Les Sykes, Hon. See. CN.C.C. Fran CN.CC. Newsletier 4/94 995 meEmBERS kIST- 0.0.80, teaber Howe Ptove — Surnane First Page 1 Town Post Code Werk Brandvocd Sharon Bratt teliyn Brookes: Jane Conde Darren Conde Weil Conde Tracy Cooper Higel Crane Carole Crane George ‘Edeonds Brian tien th Falkner Keith Forster Peter Foster Kick ‘Gaable Tony Grindley Tan Hanson-Abbot = Adrian Holdcroft Paul Soinsn al Redacted Iobason Marguerite Kelsav John fume dy Knapper Fiona Knox ‘Steve iar tae tt ath Kit Martin Joho Worris Colie Paul Gamble restore Reade Pip Reynolds Tony Schofield ¢ Shenton Joba ath ite ‘saith Terry Willingtaa Jobe The above list is the upto date "paid up" memb the Crewe Climbing and potholing Club. If your name and not on the list, but you have paid your subs for 1995, for leaving you off, but could you please let me know possible, because this is the only mailing list for the If you have over looked paying your subs and wish ta Newsletter, for as little as 35p per week, that is £18 discount for paying late I’m afraid ) you can remain probable the best Caving Club in Britain. Also if you your details and anyone else’s on the list and correct especially post codes, and return to me as soon as possi 7 Phone ers list for details are I apologise as soon as Newsletter, receive the a year ( no a member of could check if necessary ble. SOROMAN basieturie, atte 270 ee iashe ed missed _her ier dijs-extendad to 55 hours : ai times ine former: stable-girl kept fit by egeink L000 males Su het exer teat a slog ihe tmpect of otal solation ou space travellers. Tealian. Cristina lost all track of ime and ‘thought she, had sbeen cise bike tind also tauight herself to ‘veal Engi previous women's record was i by Veronique: Le Guen, from Pari, who killed her~ self afew months later. But as Cristina eame to the sur- face in Ancona, Italy, she said: “As soon as I'm finished with the medical examinations T'm off (0 the diseo. ‘This was a lonely experience icatTect th but I'm not going Fest ot" tifec™ She, added: “When they told me the fxperiment was over 1 ihomaht ie ras sil the middle of October, 30 now I need to celebrate muy" Dictiday,Christreas ata Easter a together” Scientists monitored dy and wil now naaee ay dow ana ite aformation. Unique She had to carry out her ow heath chsh message on a coms [puter in the cave told her the ordeal was over. “My life will never be the same again,” said ‘who is single. Up: Cristina Lanzonl at the end ofher nine month stay underground SRT .Grrterranten Raw terrae) ty Hairball DR JACKSON'S cave DCA has had reports pending into their position, The satter is being looked into by OCR and it is hoped this problen will only be tenporary. encviries Legal OxLON cAVERKS Hr Rowlands” of Oxlow House Farn did fot, in the event, fara in il There is access but DCA is checking again to see if it Right be possiole to restore the future, [Malcom 1 waat o For menths you have divorce been Sneaking off and coming echassted't fact the tubber gear and | thought you were into sere kinky Sex cing home” tired and Thea 1 feund + Stushed mars bar iS sto) @ caver arnt maleam 1 can. exelaia' everythiag GOAT GAP INN with en suite accommodation .-~<