ʻO ka pahu alumini he mea metala porous me nā waiwai maikaʻi loa e like me ka buffering absorption buffering, ka pale electromagnetic, ka hoʻoheheʻe ʻana o ke kani a me ka hoʻohaʻahaʻa ʻana i ka walaʻau, ke kūpaʻa wela kiʻekiʻe, a me ke kūpaʻa ikaika o ka wā. Ma kēia hoʻoponopono hou ʻana o ka tunnel, ua hoʻolālā ʻia kahi hoʻonā ʻōnaehana e like me nā ʻano o ka alumini foamed material a me nā pono o ka Haoshan Tunnel Project. Hoʻohana ʻia ka pā o loko o ka tunnel he 10 mm mānoanoa foam aluminium plate, a mālama ʻia kahi lua 50 mm ma ke kua, a hoʻohana ʻia ke kila kila māmā no ke kau ʻana. ʻO ka mea hoʻoheheʻe alumini i hoʻopili ʻia i ka paia o loko o ka tunnel hiki ke hana i kahi ʻano noʻonoʻo diffuse, no laila e neʻe mālie ke kukui mai ka puka a hiki i ka tunnel, a pale maikaʻi i ka ʻālohilohi (ghosting) i ka wā e hele ai i ka tunnel. I ka manawa like, loaʻa i ka mea alumini nā ʻano o ka hoʻohaʻahaʻa ʻana i ka walaʻau, ke kūpaʻa ahi, ke kaumaha māmā a me ka maʻalahi o ka hoʻololi ʻana, ka mālama ʻana i ke kaiapuni a me ke ola lōʻihi, e kōkua i ka hoʻomaikaʻi ʻana i ka hana holoʻokoʻa o ka tunnel.

Shandong High-Speed ​​High-Tech Materials Technology Co., Ltd.