ʻO ke kaʻaahi ʻo Guangzhou-Zhanjiang Zhanjiang Bay Undersea Tunnel

ʻO ke kaʻaahi kiʻekiʻe kiʻekiʻe ʻo Guangzhou-Zhanjiang he hoʻokahi tunnel ma lalo o ke kai, ʻo ka Zhanjiang Bay Undersea Tunnel. ʻO ka Zhanjiang Bay Undersea Tunnel e hele ana ma Zhanjiang Bay me ka lōʻihi o 9.640km (me ka 7.352km o ka pale pale, 1.148km o ka puka hāmama a me ka hana maikaʻi ʻana (ʻo ia ka 794m ma ka ʻaoʻao mileage liʻiliʻi), kahi lua lua hoʻokahi. -track tunnel me ka hoʻolālā wikiwiki o 250km / h a me 200km / h. ʻO ka hohonu hohonu i kanu ʻia o ka waihona ma kahi o 31m. , ma waena o ka lepo palupalu (palolo palupalu, lepo silty, silt) ma kahi o 5 a 15m mānoanoa. ʻO ka ʻāpana waena o ka tunnel, aia ma kahi o 2.5 mau kilomita ka nui, iho i lalo i nā wai o Zhanjiang Bay, a ʻo ke koena ka ʻāpana ʻāina.

ʻO kekahi o nā huahana Yuru i hoʻohana ʻia i kēia papahana he polyurethane waterproof coating. Ma muli o kona ʻano wai ʻole, ka pale ʻana i ka wā a me ka pale ʻana o UV, ʻaʻole loli maoli kāna hana i ka laulā o -30°C i ka 80°C. Loaʻa iā ia ka hana elongation maikaʻi a hiki ke hoʻololi i kahi ʻili kumu. Hiki ke hoʻololi ʻia ka laulā ākea o ka deformation i nā ʻāpana kumu like ʻole a me nā wahi kūkulu hale, a kūpono ia no nā noi wai wai. Eia hou, ua hoʻohana ka papahana i nā mea Yuru huahana polyurethane grouting. ʻO kekahi mea hydrophilic polyurethane grouting material, i hoʻolālā ʻia e hoʻopaʻa i nā hono a me nā māwae i loko o ke kaila mai ke komo ʻana o ka wai. Loaʻa iā ia ka elongation kiʻekiʻe e hana i ke sila paʻa i ka neʻe ʻana i nā māwae. ʻO kekahi mea hydrophobic polyurethane grouting material, nui hoʻonui ratio, ua hoʻolālā ʻia e hoʻōki i ka hoʻokomo ʻana o ka wai a hoʻopiha i nā hakahaka ma waho o kahi hale a i ʻole a hui pū a me nā māwae i loko o nā hale paʻa. Hiki ke hoʻohana ʻia i nā noi me ka wai kahe kiʻekiʻe. Loaʻa iā ia ka hopena hoʻopaʻa wai a me ka leak-proof reinforcement