ʻenehana hoʻoheheʻe ʻana no ke kūkulu ʻana i ka tunnel ka lōʻihi kiʻekiʻe

1. ʻO Guanjiao Tunnel Project Overview

Aia ʻo Guanjiao Tunnel ma Tianjun County, Qinghai Province. He papahana hoʻomalu ia o ka xining -Golmudlaina laina o Qinghai-Tibet Railway. ʻO 32.6km ka lōʻihi o ka tunnel (ʻo 3380m ke kiʻekiʻe inlet, a ʻo 3324m ke kiʻekiʻe o ka hoʻokuʻu ʻana), a he ʻelua mau ala pololei like me ka laina laina o 40m. ʻO ka awelika wela o ka makahiki ma ia wahi he -0.5 ℃, ka wela haʻahaʻa haʻahaʻa loa he -35.8 ℃, ʻo ka awelika wela o ka mahina anu loa he -13.4 ℃, ʻo ka mānoanoa hau kiʻekiʻe he 21cm, a ʻo ka hohonu o ka hau hau he 299cm. ʻO ka wahi tunnel he alpine a me hypoxic, ʻo ke kaomi o ka lewa he 60% -70% wale nō o ke kaomi o ka lewa maʻamau, hoʻemi ʻia ka nui o ka oxygen o ka ea ma kahi o 40%, a ua hoʻemi nui ʻia ka pono o nā mīkini a me nā limahana. Hana ʻia ka tunnel ma ke ʻano o ka wili ʻana a me ka puhi ʻana, a ua hoʻohana ʻia nā 10 trackless transport inclined shafts e kōkua i ke kūkulu ʻana i ka tunnel nui, ʻo ia hoʻi, ua hoʻonohonoho ʻia he 3 inclined shafts i ka tunnel o ka laina I a me 7 inclined shafts i hoʻonohonoho ʻia i ka tunnel o ka laina II.

E like me ka hoʻolālā o ka hui kūkulu hale, ua hōʻike ʻia ka hoʻonohonoho hana o ke komo ʻana a me ka puka ʻana a me nā wahi hana inclined shaft ma ka Papa 1. E noʻonoʻo ana i nā hoʻololi a me nā hoʻololi i ka hana maoli, aia kēlā me kēia wahi hana inclined shaft i nā koi o ka hana like ʻana o ka inlet a me ka puka o ka laina I a me ka laina II. ʻO ka lōʻihi o ka hoʻoheheʻe ʻana i ke poʻo hoʻokahi he 5000m, a ʻo ke kiʻekiʻe o ka wahi hana ma kahi o 3600m.

E hoʻomau ʻia…