Ring bit Tunnel Forepoling Casing Advance

Forepoling, kuma aka sani da tube laima, aikace-aikace ne da ake amfani da shi don ƙarfafa rufin rami a cikin yanayin dutsen da ya karye.Tsarin hakowa ya ƙunshicasingbututun da aka haƙa ta cikin nauyin nauyi a matsayin laima kuma an cika su da grouting.KAT Casing System yana ba da damar tuki cikin sauƙi na bututun casing zuwa cikin ƙasa tare da ƙarancin buƙatun juzu'i.A cikin gyaran fuska na zamani kuma ana iya amfani da casing ɗin fiberglass don ƙwanƙolin fuska mai tsayi.

KAT Casing Systems galibi ana amfani da su a cikin aikin kashe gobara sune RoX+ 88,9/8, RoX 114,3/10 da RoX 139,7/10.

Bututun casing

Yawanci tuli ɗaya ya ƙunshi casings na ƙarfe da yawa na mita 1,5 - 3

Haɗi ta zare

Allura bawuloli don grouting

Daidaitaccen diamita na casing: 88,9 - 114,3 - 139,7 - 168,3 mm

.Pilot Bits .Majalisun zobe .Rarraba Sanduna .Fara Casings .Extension Casings .Grouting Plugs (karshen iyakoki) .Adafta .Gouting Valves .Tsare-tsare na Hakowa

Lambar tsarin	Casing				Ring bit				Pilot bit		Zare
	[mm]	[in]	[mm]	[in]	[mm]	[in]	[mm]	[in]	[mm]	[in]
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