Multi-shaft drilling bụ usoro owuwu ala dị omimi nke a na-eji eme ihe iji mepụta ihe mgbochi n'okpuru ala na mkpuchi mkpuchi site na ịkpụzi ma ọ bụ n'otu oge na ịkpụzi ọtụtụ boreholes na-ejikọta ma ọ bụ na-agba n'akụkụ. Teknụzụ a bụ ihe bụ isi na iwulite mgbidi diaphragm, mgbidi secant, mgbidi tangent, na ihe mgbochi jet-grouted na ọnọdụ geotechnical siri ike ebe ụzọ otu-shaft ọdịnala na-egosi na ọ bụghị zuru oke ma ọ bụ na-adịghị mma n'ahịa. Ngwa bụ isi nke multi-shaft drilling gụnyere iwulite mgbidi diaphragm jupụtara na slurry maka excavations dị omimi, mkpuchi mmiri n'okpuru ala na-ewu dam na njikwa seepage embankment, na ihe mgbochi ịchịkwa contaminants na ọrụ ndozi. Usoro multi-shaft na-egosi uru pụrụ iche ebe njikọ hydraulic na ịdị mma owuwu bụ ihe dị mkpa. A na-eji usoro ndị a na excavations mixed-face ebe ala na nkume dị iche iche na-achọ atụmatụ ịkpụzi na-adabere, na saịtị nwere ohere dị oke njọ ebe ịkpụzi n'ịbụ na ọtụtụ shafts na-eme ka arụmọrụ dịkwuo mfe, na gburugburu obodo ebe mkpọtụ na vibration na-achọ ka owuwu na-eme n'ọtụtụ oge. Ngwa na-agbasa na iwulite mgbidi ala-cement-bentonite (SCB), mmepụta mgbidi secant site na strata na-egbochi, na ịmepụta kọlụm jet grouting ebe mkpuchi na-ejikọta na-eme ka ọ bụrụ na ọ gaghị abanye mmiri ma nwee ikike ibu. Usoro ọrụ nke multi-shaft drilling na-adabere na nhazi geometric ziri ezi nke trajectories borehole ọtụtụ iji nweta ihe mgbochi n'okpuru ala na-aga n'ihu ma ọ bụ na-erughị ala. Na iwulite mgbidi diaphragm, shaft mbụ na-eme ka etinye panel mbụ ebe shafts nke abụọ na-agba ọsọ na-etinye panel nke abụọ na-ejikọta, na geometry njikọ a na-eme ka o doo anya na ịdị mma owuwu na ịdị mmiri. Maka iwulite mgbidi secant, a na-agba mgbidi sacrificial mpụga mbụ, mgbe ahụ, a na-agba mgbidi nke dị n'ime nke na-etinye akụkụ nke mgbidi mbụ, na-emepụta ihe owuwu jikọtara. Ngwa jet grouting na-eji ọtụtụ ụlọ ọrụ drilling etinyere iji mepụta ahịrị kọlụm grout na-ejikọta, na ntọala ntinye—nrụgide, ọsọ mmiri, na ọsọ elu—na-ejikọta nke ọma n'ahịrị iji mantenere njikọ grout na nkọwa diameter kọlụm. Nhazi akụrụngwa dị mkpa n'ime multi-shaft drilling gụnyere hydromill na mgbidi diaphragm na-ejikọta maka mmepụta mgbidi slurry, augers na-aga n'ihu (CFA) maka ọrụ mixing ala, ngwaọrụ drilling percussion maka nkume na-emekarị, na ngwaọrụ jet grouting nwere ọtụtụ usoro ntinye monitor. Nhọrọ akụrụngwa na-adabere na nkọwa bore diameter (na-adịkarị 600–1,200 mm maka mgbidi diaphragm), ịdị elu penetration chọrọ, nyocha composition ala, ọnọdụ nrụgide hydrostatic, na ibu owuwu. Ihe ndị ọzọ a na-atụle gụnyere nkọwa pipe tremie maka shafts jupụtara na slurry, usoro casing nke na-adịgide adịgide na nke na-adịgide adịgide maka strata na-adịghị kwụsie ike ma ọ bụ na-enweghị njikọ, ngwaọrụ nyocha na njikọ, na usoro conditioning slurry maka mmiri nkwado na-adabere na bentonite. Ụkpụrụ ụlọ ọrụ na-achịkwa multi-shaft drilling gụnyere EN 1538 maka mgbidi diaphragm na reinforced concrete, EN 12716 maka imewe na mmezu jet grouting, ISO 22282 usoro maka nyocha na nyocha saịtị geotechnical, na DIN 4126 maka iwulite mgbidi secant. Ụkpụrụ ndị a na-emepụta usoro imewe, nkọwa ihe, tolerances maka njikọ na njikọ, na usoro njikwa àgwà iji hụ na a na-enyocha arụmọrụ n'oge owuwu na ndụ ọrụ ogologo oge.
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