Ring bit Tunnel Forepoling Casing Advance

Forepoling, makwaara dị ka tube nche anwụ, bụ ngwa a na-eji na-ewusi elu ụlọ ọwara ike n'ọnọdụ nkume gbajiri agbaji.Usoro ikpo mmiri mejupụtaracasingtubes nke a na-agbapụ site na oke ibu dị ka nche anwụ ma jupụta na grouting.KAT Casing Sistemu na-enye ohere ịnya ụgbọ ala n'ụzọ dị mfe n'ime ala na-achọ oke ike.N'ihe mkpuchi ihu ọgbara ọhụrụ a nwekwara ike iji mkpuchi fiberglass mee ihe mkpuchi ihu dị ogologo.

KAT Casing Sistemu ndị a na-ejikarị eme ihe na mgbagha bụ RoX+ 88,9/8, RoX 114,3/10 na RoX 139,7/10.

Akpa akpa

Otu ikpo okwu nwere ọtụtụ casings ígwè nke 1.5 - 3 mita

Njikọ site na eri

Ịgba valves maka grouting

Dayameta casing ọkọlọtọ: 88,9 - 114,3 - 139,7 - 168,3 mm

.Pilot Bits .Mgbanaka Mgbanaka .Ogwe osisi .Casings mmalite.Mgbatị Mgbatị .Plugs Grouting (okpu ngwụcha) .Ihe nkwụnye ọkụ .Valves na-agbapụta .Sistemụ mgbọ mmiri

Koodu sistemụ	Casing				Obere mgbanaka				Pilot bit		eri
	[mm]	[na]	[mm]	[na]	[mm]	[na]	[mm]	[na]	[mm]	[na]
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