Hoʻohana i ke ʻano hana kūkulu TRD ma Xiongxin High-speed Railway Project

ʻO nā ʻāpana i hōʻike ʻia ma ka ʻili o ka Xiongan New Area a me kekahi mau wahi a puni he Quaternary loose layers. ʻO ka mānoanoa o nā sediment Quaternary ma kahi o 300 mau mika, a ʻo ke ʻano o ka hoʻokumu ʻana he alluvial.

(1) Pūnaehana hou loa (Q₄)

Kanu ʻia ka papahele Holocene ma kahi o 7 a 12 mau mika ka hohonu a ʻo ia ka nui o nā waihona aluvial. ʻO ka 0.4 ~ 8m kiʻekiʻe ka mea hou i waiho ʻia i ka palolo silty, silt, a me ka pālolo, ʻo ka hapa nui o ka hina i ka hina-ʻeleʻele a me ka melemele-ʻeleʻele; ʻO ka lithology o ka papa haʻahaʻa he pālolo maʻemaʻe maʻemaʻe, paʻakai, a me ka pālolo, me kekahi mau ʻāpana i loko o ke one silika maikaʻi a me nā papa waena. Aia ka papa one ma ke ʻano o ka lens, a ʻo ka waihoʻoluʻu o ka papa lepo he melemele-ʻeleʻele a ʻeleʻele-melemele.

(2) Hoʻohou i ka ʻōnaehana (Q₃)

ʻO ka hohonu o ke kanu ʻana o ka papahele ʻo Upper Pleistocene he 50 a 60 mau mika. ʻO ka nui o nā waihona aluvial. ʻO ka lithology ka nui o ka lepo silty, silt, clay, silty fine sand and medium sand. He paʻakikī ka lepo lepo i ka plastic. , ʻo ka ʻāina one he ʻano-nui a paʻapū, a ʻo ka papa lepo he hina-melemele-ʻeleʻele ka nui.

(3) Pūnaehana Mid-Pleistocene (Q₂)

ʻO ka hohonu kanu o ka papa waena o Pleistocene he 70 a 100 mau mika. ʻO ka nui o ka mea i haku ʻia me ka pālolo palolo alluvial, ka pālolo, ka lepo lepo, ke one maʻemaʻe, a me ke one waena. He paʻakikī ka lepo pālolo i ka plastic, a ʻo ka lepo one ma kahi ʻano paʻa. ʻO ka papa lepo he melemele-ʻeleʻele, ʻeleʻele-melemele, ʻeleʻele-ʻulaʻula, a ʻeleʻele.

(4) He 0.6m ka hohonu o ka lepo ma ka hikina hikina.

(5) Ma lalo o ka Mokuna II kūlana kahua, ke kumu kumu o ka ōlaʻi kiʻekiʻe acceleration partition waiwai o ka paena i manaʻo 'ia he 0.20g (degere); ʻO ke kumu o ka hoʻokē ʻai ʻana o ka ōlaʻi kikoʻī kikoʻī kikoʻī o ka waiwai hoʻokaʻawale he 0.40s.

2. Nā kūlana hydrogeological

ʻO nā ʻano wai lepo i komo i loko o ka hohonu ʻimi ʻana o kēia kahua ka nui o ka wai phreatic ma ka papa lepo pāpaʻu, ka wai paʻa iki i ka papa lepo lepo ma waena, a me ka wai paʻa i ka papa one hohonu. Wahi a nā hōʻike geological, ʻo nā ʻano mahele o nā ʻano aquifers like ʻole:

(1) Ka wai ʻili

ʻO ka wai ili mai ka muliwai ʻo Baigou ka nui (ʻo kahi hapa o ka muliwai e pili ana i ka tunnel ua hoʻopiha ʻia e ka ʻāina wao nahele, ka ʻāina mahiʻai a me ke kāʻei ʻōmaʻomaʻo), a ʻaʻohe wai ma ka muliwai ʻo Pinghe i ka wā ana.

(2) Luʻu

ʻO Xiongan Tunnel (Pauku 1): Hoʻokaʻawale ʻia ma kahi kokoke i ka ʻili, ʻike nui ʻia ma ka papa pāpaʻu ②51, ②511 papa, ④21 papa lepo lepo, ②7 papa, ⑤1 papa o ke one maʻemaʻe, a me ⑤2 papa one ma waena. ②7. ʻOi aku ka maikaʻi o ka lawe ʻana i ka wai a me ka permeability o ka papa one maʻemaʻe ma ⑤1 a me ke one one ma waena o ⑤2, ʻoi aku ka mānoanoa, ʻoi aku ka maikaʻi o ka hāʻawi ʻana, a me ka waiwai o ka wai. He mau papa wai-permeable lākou. ʻO ka papa luna o kēia papa he 1.9 ~ 15.5m hohonu (ʻo ke kiʻekiʻe he 6.96m ~ -8.25m), a ʻo ka papa lalo he 7.7 ~ 21.6m (ʻo ke kiʻekiʻe he 1.00m ~ -14.54m). He mānoanoa a puʻunaue like ʻia ka aquifer phreatic, he mea nui ia no kēia papahana. He hopena nui ke kūkulu. Ke emi mālie nei ka ʻilikai o ka lepo mai ka hikina a i ke komohana, me ka hoʻololi ʻana o ke kau o 2.0~4.0m. ʻO ka pae wai paʻa no ka luʻu ʻana he 3.1~16.3m hohonu (3.6~-8.8m kiʻekiʻe). Hoʻopili ʻia e ke komo ʻana o ka wai ʻili mai ke kahawai ʻo Baigou Diversion, hoʻopiha ka wai ʻili i ka wai o ka honua. ʻO ka pae wai honua ka mea kiʻekiʻe loa ma ka muliwai ʻo Baigou Diversion a me nā wahi kokoke i DK116+000 ~ Xiongbao DK117+600.

(3) Ka wai kaomi

Xiongan Tunnel (Pauku 1): E like me ka hopena o ka noiʻi ʻana, ua māhele ʻia ka wai kaomi i ʻehā mau papa.

ʻO ka papa mua o ka wai i hoʻopaʻa ʻia he ⑦1 one silty maikaʻi, ⑦2 one medium, a ua māhele ʻia ma ka ʻāina i ⑦51 lepo lepo. Ma muli o nā hiʻohiʻona māhele o ka wai i loko o ka ʻāpana lalo o ka papahana, ua helu ʻia ka wai paʻa i loko o kēia papa ma ke ʻano he aquifer paʻa ʻia ʻo No.

ʻO ka lua o ka wai i hoʻopaʻa ʻia he ⑧4 one silty maikaʻi, ⑧5 one medium, a ua māhele ʻia ma ka ʻāina i ka ⑧21 lepo lepo. ʻO ka wai i hoʻopaʻa ʻia i loko o kēia ʻāpana ua māhele nui ʻia ma Xiongbao DK122+720~Xiongbao DK123+360 a me Xiongbao DK123+980~Xiongbao DK127+360. Ma muli o ka hoʻomau ʻia ʻana o ka papa one No. Hoʻokaʻawale ʻia ke one, ⑧5 one medium, a me ⑧21 lepo lepo lepo aquifers i loko o ka lua i hoʻopaʻa ʻia. Ma muli o nā hiʻohiʻona māhele o ka wai i loko o ka ʻāpana lalo o ka pāhana, ua helu ʻia ka wai i hoʻopaʻa ʻia ma kēia papa ma ke ʻano he aquifer paʻa ʻia ʻo No.

ʻO ka papa ʻekolu o ka wai i hoʻopaʻa ʻia he ⑨1 one silty fine, ⑨2 one medium, ⑩4 silty fine sand, a me ⑩5 medium sand, ka mea i māhele ʻia ma ka kūloko ⑨51.⑨52 a me (1021.⑩22 silt. Distribution from the underground section. ʻenekinia aquifer Nā ʻano, ua helu ʻia kēia papa o ka wai paʻa ma ke ʻano he No. ③ aquifer paʻa.

ʻO ka papa ʻehā o ka wai i hoʻopaʻa ʻia he ①3 one silty maikaʻi, ①4 one liʻiliʻi, ⑫1 one silty fine, ⑫2 one one, ⑬3 one silty fine, a me ⑬4 one liʻiliʻi, i māhele ʻia ma ①21.⑫51.⑫22. .⑬21.⑬22 Ma ka lepo pauda. Ma muli o nā hiʻohiʻona māhele o ka wai i loko o ka ʻāpana lalo o ka papahana, ua helu ʻia ka wai paʻa i loko o kēia papa ma ke ʻano he aquifer paʻa ʻia ʻo No.

ʻO Xiongan Tunnel (Pauku 1): ʻO ke kiʻekiʻe o ka wai paʻa o ka wai paʻa i ka Xiongbao DK117+200~Xiongbao DK118+300 ʻāpana he 0m; ʻO ke kiʻekiʻe kiʻekiʻe o ka wai paʻa i ka Xiongbao DK118+300~Xiongbao DK119+500 ʻāpana he -2m ; ʻO ka piʻi ʻana o ka wai paʻa o ka ʻāpana wai kaomi mai Xiongbao DK119+500 a hiki i Xiongbao DK123+050 -4m.

4. Hoao paia hoao

Hoʻoponopono ʻia nā silos longitudinal wai-hoʻomaha o kēia papahana e like me nā ʻāpana 300-mika. ʻO ke ʻano o ka pale pale wai e like me ka pale wai ma nā ʻaoʻao ʻelua o ka lua kumu pili. He nui nā kihi a me nā ʻāpana lohi o ke kahua kūkulu, e paʻakikī ai ke kūkulu ʻana. ʻO ia hoʻi ka manawa mua i hoʻohana ʻia ke ʻano hana kūkulu TRD ma ke ʻano nui ma ka ʻākau. ʻO ka noi āpau e hōʻoia i ka hiki ke kūkulu ʻia o ke ʻano hana TRD a me nā mea hana ma lalo o nā kūlana stratum, ka maikaʻi o ka paia o ka pā hui ʻana o ka lepo sima-ʻeleʻele like ʻole, ka hoʻohui like ʻana o ka sima, ka ikaika a me ka hana hoʻomaha wai, etc. nā ʻāpana hana like ʻole, a hana maʻamau E hana i kahi hoʻāʻo pā hoʻāʻo ma mua.

Nā koi hoʻolālā pā hoʻāʻo:

ʻO 800mm ka mānoanoa o ka pā, 29m ka hohonu, a ʻaʻole emi ka lōʻihi o ka mokulele ma mua o 22m;

ʻAʻole ʻoi aku ka nui o ka ʻae ʻana o ka paia ma mua o 1/300, ʻaʻole ʻoi aku ka nui o ka neʻe ʻana o ka paia ma mua o + 20mm ~ -50mm (ʻoi aku ka maikaʻi o ka hoʻokaʻawale ʻana i loko o ka lua), ʻaʻole ʻoi aku ka nui o ka hohonu o ka paia ma mua o 50mm, ka pā. ʻAʻole e emi ka mānoanoa ma mua o ka mānoanoa o ka pā i hoʻolālā ʻia, a e hoʻomalu ʻia ka ʻokoʻa ma waena o 0 ~ -20mm (e hoʻomalu i ka nui o ke poʻo o ka pahu ʻoki);

ʻO ka waiwai maʻamau o ka ikaika compressive unconfined o ka pā sima-ʻāina hui pū ʻia o ka mānoanoa like ma hope o 28 mau lā o ka wili kumu ʻaʻole i emi iho ma mua o 0.8MPa, a ʻaʻole pono ka nui o ka pā permeability coefficient ma mua o 10-7cm/sec;

Kaʻina hana kūkulu:

Hoʻohana ka pā hui ʻana o ka lepo me ka mānoanoa like ʻole i ʻekolu mau ʻanuʻu i ka hana ʻana i ka paia (ʻo ia hoʻi, ka ʻeli ʻana i mua, ka ʻeli ʻana, a me ka hui ʻana o ka pā).