Kore pobowola zitsime za zofufuza geotechnical

Coring otchedwa kuboola mmene kubowola kunja ndime (pakati) labwinobwino thanthwe chifukwa thanthwe kuwonongedwa kumachitika kokha pa mphete nkhope. Zopangapanga pobowola chida wapangidwa Akamva, coring chubu, chubu adaputala azamagetsi, ndodo kubowola, kubowola kalozera chubu ndi England. pobowola pachimake akufuna mu 1862 Swiss J. Lesho.

ntchito yaikulu ya njira ndi kuti akhoza mokhomerera pafupifupi onse thanthwe coring. Kuchokera pakati amapatsidwa mwayi kupeza mfundo zolondola kwambiri zokhudza gawo miyala. pobowola pachimake ntchito mu mafuta ndi gasi pobowola pa miyala yoyeza ndi sanjira ntchito. Ndi chofunika kwambiri kwa kufufuza za madipoziti mchere, ndipo kawirikawiri ntchito zitsime madzi, mu maphunziro geochemical ndi miyala zomangamanga Kafukufuku.

Mtundu wa pobowola zimagawidwa, malingana ndi mtunda kuchokera pansi inasokoneza particles wa miyala ngati kuboola njira: youma, kutsegula m'mimba ndi mpweya wothinikizidwa, ntchito kusamba madzi (madzi kapena matope).

pobowola pachimake ntchito galimoto dongo louma ndi ruhlyakovyh miyala wandiweyani. Ndi wolimba reciprocating kuboola pokha ROP ziume zidzakhala zothandiza kwambiri, koma ndime pachimake ndi olumala kwambiri, chifukwa mu nkhani zolakwika ndi zosayenela zinachitikira zitsime zomangamanga kuti mokhomerera. Pamene galimoto pa miyala argillaceous linaphwanya dongosolo awo achibadwa ndi chinyezi chifukwa Kutentha pachimake ndi mapindikidwe (kupiringiza, kapena kutambasula). Pobowola youma pa miyala ikuwombedwa kupereka zinthu zonyenga pa mlingo wa weathering a miyala, zolakwa zazikulu ndi kotheka (mkati 0.5 m) mu tanthauzo la malire wosanjikiza, kotero zigawo munthu wa thanthwe ndi linanena bungwe la 0,25 kapena zambiri (kwa 0.5 mamita ) tingalisiye (sizinalembedwe) pa Kulemba kuti inunso zosavomerezeka pa zofufuza geotechnical.

pobowola pachimake ntchito kuyeretsa mpweya pamene galimoto ikuwombedwa thanthwe, mchenga ndi dongo khola ndi Madzi oundana. Zomveka ntchito ndi ankatenthetsa madzi pathanthwe zovuta ndi poluskalnyh miyala yokhazikika. njira imeneyi ili ndi wabwino geotechnical zambiri.

pobowola pachimake ikuwombedwa miyala kuti bwino kusunga pakati ikuchitika mipope iwiri ndime ntchito kapena ejector coring projectiles. Species wofatsa (mpaka Category III), kuuma sing'anga (gulu IV -V) ndi olimba (V -VIII) mokhomerera carbide akorona. Pakuti thanthwe molimba (IX - XII) ndi pang'ono olimba diamondi ntchito ndi mpirawo korona. Pamene pachimake pobowola n'kofunika kusunga pobowola mode - razruschayuschy ofananira katundu chida, projectile liwiro (Chiv / Mph) ndi ndondomeko kulola kuti ankatenthetsa buku (l / Mph) madzi chakudya.