ʻIkepili o TRD

Hoʻolauna iā TRD •
ʻO TRD (Trench cutting Re-mixing Deep wall method), kahi ʻano hana kūkulu pā mau ma lalo o ka lepo sima mānoanoa like, i hoʻomohala ʻia e Kobe Steel o Iapana i ka makahiki 1993, kahi e hoʻohana ai i kahi pahu ʻoki kaulahao ʻokiʻoki e kūkulu mau i nā pā mau ma lalo o ka lepo sima mānoanoa like ʻenehana kūkulu.
Ua hiki aku ka hohonu o ke kūkulu ʻana ma nā papa lepo one maʻamau i 56.7m, a ʻo ka mānoanoa o ka paia he 550mm~850mm. He kūpono nō hoʻi ia no nā ʻano papa like ʻole e like me nā ʻiliʻili, nā ʻiliʻili, a me nā pōhaku.
He ʻokoʻa ʻo TRD mai ke ʻano hana kūkulu pā mau ʻano kolamu o kēia manawa ma lalo o ka lepo sima i hana ʻia e nā mīkini wili wili hoʻokahi-axis a i ʻole multi-axis kuʻuna. Hoʻokomo mua ʻo TRD i kahi mea ʻoki ʻano kaulahao i loko o ke kahua, ʻeli a hiki i ka hohonu i hoʻolālā ʻia o ka pā, a laila hoʻokomo i kahi mea hoʻōla, kāwili iā ia me ka lepo in-situ, a hoʻomau i ka ʻeli ʻana a me ka hoʻoulu ʻana ma ke ʻano pālahalaha, a holomua ma ke ʻano pālahalaha e kūkulu i kahi pā mau e kāwili ana i ka sima kiʻekiʻe.

Nā hiʻohiʻona o TRD
(1) He nui ka hohonu o ke kūkulu ʻana; hiki i ka hohonu loa ke hiki i 60m.
(2) He kūpono ia no nā ʻano papa like ʻole a he hana ʻeli maikaʻi kona i nā papa paʻakikī (lepo paʻakikī, ʻiliʻili one, pōhaku palupalu, a pēlā aku)
(3) He maikaʻi ke ʻano o ka pā i hoʻopau ʻia, ma ke kuhikuhi hohonu o ka pā, hiki iā ia ke hōʻoia i ka maikaʻi o ka lepo sima like, ka ikaika i hoʻomaikaʻi ʻia, ka discreteness liʻiliʻi, a me ka hana interception wai maikaʻi.
(4) Palekana kiʻekiʻe, ʻo ke kiʻekiʻe o nā lako he 10.1m wale nō, kikowaena haʻahaʻa o ke kaumaha, kūpaʻa maikaʻi, kūpono no nā wahi me nā palena kiʻekiʻe.
(5) Pā mau me nā hui liʻiliʻi a me ka mānoanoa like o ka pā, hiki ke hoʻonohonoho ʻia ke kila ʻano H ma ka mamao kūpono.

Kumumanaʻo o TRD
Hoʻokele ʻia ka pahu ʻoki kaulahao e ka motika hydraulic o ka pahu mana, a ua hoʻopili ʻia nā ʻāpana e wili i kahi hohonu i hoʻoholo mua ʻia, a ua holomua ka ʻeli ʻana i ka pae. I ka manawa like, ua hoʻokomo ʻia ka wai paʻa i loko o ka lalo o ka pahu ʻoki e hui ikaika a hoʻoulu me ka lepo in-situ, a hiki ke hoʻokomo ʻia ka paia hui lepo sima i hana ʻia me ka mānoanoa like i loko o ke kila profile e hoʻonui i ka paʻakikī a me ka ikaika o ka paia hui.
Hoʻololi kēia ʻano hana kūkulu i ke ʻano kāwili ʻana o ka pā sima-lepo mai ka kāwili ʻana o ka papa pālahalaha kuʻuna o ke koʻokoʻo wili auger axis vertical i ka kāwili ʻana o ka pahu ʻoki kaulahao ʻoki axis horizontal ma ka hohonu o ka pā.