Ngwaọrụ Nlekota Nchekwa Tunneli bụ sistemụ ngwá ọrụ na usoro nyocha pụrụ iche nke a na-emepụta iji soro arụmọrụ na ịdị mma nke ogige jet grouting, mgbidi ala, na akwa nke na-egbochi mmiri n'oge owuwu tunneli na ọrụ nkwụsị ala. N'ọrụ injinia ntọala miri emi, ngwaọrụ ndị a na-arụ ọrụ dị mkpa site n'ịnye data n'oge a na-eme ihe gbasara arụmọrụ grouting, nkesa ihe, nzaghachi ala, na omume ihe owuwu n'oge usoro jet grouting na n'oge usoro nkwụsị tunneli na-esote. Ha na-enye ndị na-arụ ọrụ ohere iji jide n'aka na a na-emezu ihe ndị a na-eme atụmatụ, chọpụta ihe na-adịghị mma n'oge a na-eme ihe, ma mee ndozi tupu mmebi ihe owuwu ma ọ bụ mmegharị ala na-adịghị mma emee. Ngwaọrụ nlekota nke tunneli a na-eji na ọtụtụ usoro nkwụsị ala gụnyere ogige jet grouting maka ihu na mgbidi tunneli, akwa na-egbochi mmiri maka njikwa mmiri ala gburugburu ebe tunneli, ọrụ jetting mgbidi diaphragm, ịmepụta pile secant na tangent, na usoro ngwakọta ala maka ọnụ ụzọ tunneli na owuwu oghere. Ha dị mkpa karị na ọrụ tunneli obodo ebe njikwa nkwụsị dị mkpa, na strata nwere mmiri ebe ogo grouting na-emetụta njikwa mmiri ala, na mpaghara ebe ihe owuwu dị n'akụkụ na-etinye oke nrụgide na mmegharị. Usoro ọrụ ahụ gụnyere ịmepụta ma ọ bụ ịtụgharị oge niile nke ihe ndị bụ isi n'oge na mgbe ọrụ jetting gasịrị. Ngwá ọrụ nrụgide na ndị na-enyocha mmiri na-enyocha ọnụego ntinye ihe grouting, nrụgide, na olu iji hụ na nkesa na-adịgide adịgide ma chọpụta ihe na-egbochi ma ọ bụ mmejọ ngwá ọrụ. Inclinometers na ndị na-enyocha nkwụsị na-enyocha mmegharị ala na ihe owuwu iji chọpụta nkwụsị na-adịghị mma ma ọ bụ mmegharị lateral. Piezometers na-enyocha nzaghachi nrụgide pore na mgbanwe ọkwa mmiri ala n'ime na gburugburu ebe a na-emepụta. Ngwaọrụ na-enyocha ọdịnaya mmiri na usoro nyocha ịdị arọ na-enyocha na ihe grouting na-enweta ike na njirimara permeability a tụrụ aro. Usoro nlekota akustik na usoro nyocha anya (foto boreholes) na-enyocha ogo ogige ma chọpụta oghere ma ọ bụ ihe na-adịghị mma na ngwugwu a na-emepụta. Ngwaọrụ dị mkpa na nke a gụnyere ngwaọrụ ndekọ nrụgide nke na-adọrọ adọrọ na ngwá ọrụ jetting, netwọk nchịkọta data ọtụtụ paramita na-enweghị eriri nke jikọtara nrụgide, mmiri, mmegharị, na ndị na-enyocha nrụgide pore, usoro ịdọ aka ná ntị akpaaka nke na-eme ka ọkwa na-atụgharị mgbe a na-eme ihe karịrị ihe a tụrụ aro, na nyiwe ndekọ data jikọtara nke na-enye ohere n'oge a na-eme ihe maka njikwa ọrụ n'ebe dị anya. Ngwaọrụ pụrụ iche gụnyere transducers nrụgide dị iche iche maka nlekota ịdị mma ogige grouting, piezometers vibrating wire maka nyocha mmiri ala ogologo oge, na usoro GNSS kinematic n'oge (RTK) maka ịmepụta nkwụsị atọ dị mma. Nhọrọ nke ngwaọrụ nlekota nke tunneli gụnyere mgbagwoju anya nke profaịlụ geotechnical na ogo nke ala dị iche iche, nso nke ihe owuwu dị mkpa na ihe a chọrọ maka nkwụsị, ụdị ihe grouting na nrụgide ntinye, ịdị miri emi nke tunneli na usoro mmiri ala, ogologo oge ọrụ na mkpa maka nlekota ogologo oge, ihe achọrọ maka nnyefe data (n'oge vs. oge), na njikọ na usoro njikwa jetting akpaaka. Ihe ndị na-emetụta gburugburu ebe obibi dịka ọnọdụ saturation, mgbanwe okpomọkụ, na nkwado kemịkal nke ndị na-enyocha na ihe grouting ga-enwerịrịkwa ka a tụlee. Ụkpụrụ ụlọ ọrụ dị mkpa na-achịkwa nlekota gụnyere EN 1538 (Mgbidi Diaphragm), EN 14199 (Micropiles), DIN 4125 (Grouting), ISO 6892-1 (Nnwale Mechanical), na API RP 65 (Nlekota na Iji Casing na Tubing). Usoro nlekota kwesịrị ịkwado na akụkọ ntọala geotechnical na tebụl nzaghachi omume nke ihe a tụrụ aro maka nkwụsị (TART), na-eme ka nlekota usoro a na-eme ka usoro owuwu na-adabere na mgbanwe na-eme n'oge a na-eme ihe n'oge nkwụsị.
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