Liboto cheka liliba tsa diphuputso geotechnical

Coring bitsoa ho cheka, ao ho 'ona ho tirila tsoa karolong e ngotsoeng (konokono) senyeha lefika hobane lefika felisoeng ha le hlaha feela ka lesale sefahleho. Theknoloji cheka sesebelisoa e entsoe ka likotoana, coring tube,, tube, adapters, melamu tirila, tirila tataiso tube, le tšoelesa. cheka konokono sisintsweng ka 1862 Switzerland J. Lesho.

Molemo konokono tsa mokhoa ke hore e ka e ile ea fata hoo e ka bang tsohle lefika coring. From konokono a fuoa monyetla oa ho fumana boitsebiso bo nepahetseng ka ho fetisisa mabapi le karolo Geological. cheka konokono e sebelisoa ka oli le khase ho cheka ka Geological mapotiele le dimmapa mesebetsi. Ho ke ba bohlokoa haholo bakeng sa diphuputso tsa mobung matsoai, 'me e atisa ho sebediswa bakeng sa liliba metsi, ka lithuto tsa geochemical le Geological boenjiniere le dipatlisiso.

mofuta ona wa ho cheka o classified, ho itšetlehile ka sebaka se tloha tlase fela likaroloana tsa mafika joalo cheka mekhoa: omileng, purge le moea petetswa, sebelisa ho hlatsoa mokelikeli (metsi kapa seretse).

cheka konokono e sebediswa bakeng sa ho khanna ea letsopa omeletseng le e ruhlyakovyh mafika le letšo-letšo. Le matla reciprocating cheka hanyane Rop omella ho tla ba atlehang ka ho fetisisa, empa lenaneng la konokono e holofala haholo, ho fellang ka lesedi a fosahetseng mabapi le le sa amohelehe tabeng ea liliba le boenjiniere ntse e ile ea fata. Ha u khanna majoeng argillaceous hataketse sebopeho bona tsa tlhaho le mongobo ka lebaka la futhumatsang ea mantlha le deformation (kobeha, kapa otlolla). Cheka omileng majoeng weathered hape e fana ka boitsebiso ba khelosa ka tekanyo e sa bosa a mafika, phoso e kholo e boetse ke khoneha (ka hare ho 0.5 limithara) ka tlhaloso ea meeli kolohantsoeng, ho joalo le ka le dikarolo motho oa lefika le khumo ea 0,25 kapa ho feta (ho fihlela ho 0.5 limithara ) ka lea ka la boleloa (se tlalehiloeng) ka documenting hore hape e sa amoheleheng ka diphuputso geotechnical.

cheka konokono e sebediswa ho purge moea ha u khanna weathered lefika, lehlabathe le letsopa a tsitsitseng le permafrost. Kwalwang ho sebelisa le Flushing metsi ka lefika le thata 'me ka poluskalnyh mafika tsitsitseng. Mokhoa ona e fana ka boleng bo botle geotechnical tlhahisoleseding.

cheka konokono weathered majoe e le hore a molemo ka ho fetisisa ho boloka ea mantlha e phethahatsoa liphaephe habeli lenaneng la sebelisoa kapa ejector coring projectiles. Mefuta e bonolo (ho fihlela ho Category III), thatafala mahareng (sehlopha IV -V) le tiileng (V -VIII) e ile ea fata carbide meqhaka. Bakeng sa lefika le thata (IX - XII) le mokhoa o sa fellang tiileng taemane e sebediswa le thunngoa moqhaka. Ha ea mantlha ho cheka Ke habohlokoa ho boloka ho cheka mokgwa wa - razruschayuschy axial mojaro ka sesebelisoa sa, projectile lebelo (Tšen / mets) le ka ho tshebetso ya ho dumella ho Flushing bophahamo ba modumo (k / mets) mokelikeli iphepe.