Papahana mālama kūikawā no ka ʻāpana Xinxian o Daguang Expressway

ʻO Daqing-Guangzhou Expressway, i kapa ʻia ʻo Daqing-Guangzhou Expressway, ʻo ia hoʻi ʻo Daqing-Guangzhou Expressway, ʻo ia kekahi o nā laina kumu nui akau-hema o ka ʻupena alaloa aupuni o Kina.

Hoʻomaka ka laina mai Daqing City ma Heilongjiang Province ma ka ʻākau a hiki i ke kūlanakauhale ʻo Guangzhou ma Guangdong Province ma ka hema, e hele ana ma Jilin Province, Inner Mongolia Autonomous Region, Beijing City, Hebei Province, Henan Province, Hubei Province, Jiangxi Province, a me Guangdong Province , me ka loa o 3,437 kilomika. , me ka wikiwiki hoʻolālā o 80 a 120 mau kilomita i kēlā me kēia hola.

Ma ʻAukake 15, 2022, i mea e hoʻomaikaʻi ai i ka maikaʻi o ka hana alanui a me ka pae lawelawe o ka Xinxian Section o Daguang Expressway ma Henan Province ("Southern Henan Expressway") a hoʻomaikaʻi i nā pono waiwai a me ka pilikanaka a puni ka pōʻai ola, ua ʻae ʻia e hoʻokō i ka Daguang Expressway ma Henan Province Special project no ka hoʻomaikaʻi ʻana i ka maikaʻi a me ka hoʻomaikaʻi ʻana i ka ʻāpana kalana hou.

Pono nā tunnels a pau o kēia papahana kūikawā i ka wai ʻole, ka leakage plugging a me ka mālama ʻana i nā hana, a me nā mea polyurethane hiki ke hoʻoheheʻe ʻia i ka wai Yuru a me nā lawelawe e pili ana (me ka hoʻopili ʻana, ka lawe ʻana, ka hoʻouka ʻana a me ka wehe ʻana, nā lawelawe ʻenehana, nā lawelawe ma hope o ke kūʻai aku, etc.) ua koho ʻia. ʻO ka huahana Yuru i hoʻohana ʻia i loko o kēia papahana he hydrophilic polyurethane grouting material, ʻo ia ka nonflammable hydrophilic polyurethane resin i hoʻolālā ʻia e hoʻopili i nā hono a me nā māwae i loko o ke koneki mai ka hoʻokomo ʻana o ka wai. Loaʻa iā ia ka elongation kiʻekiʻe e hana i ke sila paʻa i ka neʻe ʻana i nā māwae. Non-corrosive, hiki ke hoʻololi, kūpono no ka pale kiʻekiʻe a me ka hoʻopili ʻana i nā noi.