Ring bit Tunnel Forepoling Casing Advance

Forepoling, magħruf ukoll bħala tubu umbrella, hija applikazzjoni użata biex issaħħaħ is-saqaf tal-mina f'kundizzjonijiet ta 'blat miksur.Sistema tat-tħaffir tikkonsisticasingtubi li huma mtaqqbin mill-piż żejjed bħala umbrella u mimlija bil-grouting.KAT Casing System tippermetti sewqan faċli tat-tubi tal-casing fl-art b'domanda baxxa ta 'torque.Fil-forepoling moderni wkoll casings tal-fibreglass jistgħu jintużaw għal facebolts ultra-twil.

KAT Casing Systems l-aktar użati fil-forepoling huma RoX + 88,9/8, RoX 114,3/10 u RoX 139,7/10.

Tubi tal-kisi

Tipikament munzell wieħed jikkonsisti f'diversi kisi ta 'l-azzar ta' 1,5 – 3 metri

Konnessjoni bil-ħajt

Valvoli ta' injezzjoni għall-grouting

Dijametri standard tal-kisi: 88,9 – 114,3 – 139,7 – 168,3 mm

.Bits pilota.Ċirku Assemblaġġi.Drill Vireg.Kaxxi tal-Istarter.Kisi ta' Estensjoni.Grouting Plugs (tappijiet tat-tarf) .Adapters .Valvoli tal-grouting.Forepoling Sistemi ta 'Tħaffir

Kodiċi tas-sistema	Kejsing				Ring bit				Bit pilota		Thread
	[mm]	[fi]	[mm]	[fi]	[mm]	[fi]	[mm]	[fi]	[mm]	[fi]
RoX+ 76,1/4	76.1	3	4	0.157	52	2.047	90	3.543	66	2.598	R32
RoX+ 76,1/8	76.1	3	8	0.315	47	1.850	90	3.543	59	2.323	R32
RoX+ 88,9/4	88.9	3 ½	4	0.157	71	2.795	99	3.898	80	3.150	T38
RoX+ 88,9/8	88.9	3 ½	8	0.315	50.8	2.000	94.9	3.736	70	2.756	T38
RoX+ 101,6/10	101.6	4	10	0.394	65	2.559	110	4.331	79	3.110	T38
RoX+ 114,3/5	114.3	4 ½	5	0.197	91	3.583	128	5.039	102	4.016	T38
RoX 114,3/10	114.3	4 ½	10	0.394	73.5	2.894	120.30	4.736	92.5	3.642	T38
RoX 139,7/10	139.7	5 ½	10	0.394	94	3.701	145.70	5.736	117.5	4.626	T45
RoX+ 159,0/10	159.0	6 ¼	10	0.394	119	4.685	169.0	6.654	137	5.394	T45
RoX+ 168,3/10	168.3	6 ⅝	10	0.394	127	5.000	182.3	7.177	147	5.787	T45
RoX+ 219,1/12,7	219.1	8 ⅝	127	0.500	167	6.575	234	9.213	191	7.520	T45
RoX+ GFRP 76,1/8	76.1	3	8	0.315	47	1.850	90	3.543	59	2.323	R32
RoX+ GFRP 76,1/8	76.1	3	8	0.315	47	1.850	90	3.543	59	2.323	T35