Core-egwu olulu maka geotechnical nnyocha

Coring akpọ mkpọpu ala, agaghi asu malite ịgba si kọlụm (isi) na-emebibeghị nkume n'ihi na nkume mbibi pụtara nanị na ihu mgbanaka. Nkà na ụzụ-egwu na ngwá ọrụ e mere ka nke ibe n'ibe, coring tube, tube ihe nkwụnye, malite ịgba mkpara, malite ịgba ndu tube na gland. Core egwu obụp mi ke 1862 Swiss J. Lesho.

Core uru nke usoro bụ na ọ ga-gbapuru fọrọ nke nta niile rock coring. Site na isi na-nyere ohere inweta ihe ndị kasị ihe ọmụma ziri ezi banyere geological ngalaba. Core-egwu na-eji na mmanụ na gas-egwu na geological Gọọmenti na nkewa ọrụ. Ọ dị oké mkpa maka ngagharị nke ịnweta ego, na a na-eji maka mmiri iyi, na geochemical ọmụmụ na geological engineering nyocha.

Nke a na ụdị egwu a na nkewa, dabere na anya na ala ile ahụ nke nkume ndị dị otú ahụ egwu ụzọ: akọrọ, kpochapu na abịakọrọ ikuku, iji a saa mmiri mmiri (mmiri ma ọ bụ apịtị).

Core-egwu na-eji maka ịkwọ ụgbọala nke akọrọ ụrọ ruhlyakovyh oké nkume. Na ike reciprocating mkpọpu ala bit ROP nkụ ọ ga-abụ ihe kasị dị irè, ma na kọlụm isi na-nkwarụ budata, dapụtara na agbagọ ọmụma na-adịghị anabata na ihe banyere engineering olulu a gbapuru. Mgbe ụgbọala na argillaceous nkume imebi ha eke Ọdịdị na iru mmiri ruru kpo oku na isi na deformation (curling, ma ọ bụ ndinyanade mbịne). Drilling akọrọ na weathered nkume-enye na-eduhie eduhie ozi na ogo nke weathering nke nkume, nnukwu njehie na-ekwe omume (n'ime 0,5 m) na definition nke oyi akwa ókè, otú onye n'ígwé nke oké nkume na-na mmepụta nke 0,25 ma ọ bụ karịa (ruo 0,5 m ) nwere ike ịhapụ (bụghị dere) at n'usoro ichikota na na-adịghị anakwere geotechnical nnyocha.

Core-egwu a na-eji kpochapu ikuku mgbe ụgbọala weathered nkume, ájá na ụrọ mụ na permafrost. Ò iji na flushing mmiri na ike na oké nkume na anụ poluskalnyh nkume. Nke a na usoro na-enye ezigbo àgwà geotechnical ọmụma.

Core mkpọpu ala weathered nkume iji kacha mma chebe isi a rụrụ abụọ kọlụm ọkpọkọ etinyere ma ọ bụ ejector coring projectiles. Umu anumanu na osisi dị nro (ruo Category III), ọkara ekweghị ekwe (Atiya IV -V) na ihe siri ike (V -VIII) gbapuru carbide okpueze. N'ihi na ike na oké nkume (IX - XII) na n'omume siri ike diamond na-eji na shot okpueze. Mgbe isi-egwu dị mkpa na-edebe-egwu mode - razruschayuschy axial ibu na ngwá ọrụ, projectile ọsọ (rev / min) na na usoro ka ohere maka flushing olu (l / min) mmiri mmiri ndepụta.