Ngwaọrụ Grouting

Ngwaọrụ grouting na-anọchi anya otu ụdị igwe pụrụ iche dị mkpa nke e mere iji tinye grouting cementitious ma ọ bụ kemịkal na ala na nkume iji kwụsị, mechie, ma ọ bụ melite njirimara injinia ha. N'ime usoro ndị ọzọ gbasara ịkpụ ala na teknụzụ mmezi ala, ngwa grouting na-akwado ntinye mgbidi diaphragm, mkpuchi mkpuchi, usoro pile secant, na usoro jet grouting ebe ntinye nke na-adabere na nrụgide dị mkpa iji nweta ebumnuche arụmọrụ imewe. Ọrụ bụ isi nke ngwa grouting bụ iji nweta nnyefe grouting kwụsie ike na nrụgide na ọnụego mmiri akọwapụtara, na-enye ndị na-arụ ọrụ ohere ịchịkwa permeability, ịkwalite ikike nkwado, belata ntọhapụ, ma ọ bụ mepụta mgbidi na-adịghị arịọ na ngwa ngwa ntọala omimi. Ngwaọrụ grouting na-arụ ọrụ na ụkpụrụ bụ isi nke na-eme ka ngwakọta grouting homogenous na-emepụta ma nyefee ha na ọkwa na ebe akọwapụtara site na oghere ntinye ma ọ bụ pipes nnyefe n'okpuru nrụgide achịkwa. N'ịrụ mgbidi diaphragm na ihe owuwu pile secant, ngwa grouting na-etinye grouting ozugbo na matrix ala gbara gburugburu ma ọ bụ n'etiti piles iji wepụ oghere ma mepụta ihe na-eburu ibu monolithic. Maka ngwa mkpuchi mkpuchi na jet grouting, ngwaọrụ ahụ na-emepụta mmiri nrụgide dị elu dị mkpa iji rụọ ọrụ na ngwakọta ala mgbe ọ na-ejikwa jupụta oghere a mepụtara na grouting. Usoro ọrụ na-emekarị gụnyere ngwakọta nke ihe ndị a na-ejikarị (Portland cement, mmiri, admixtures) na ụlọ ọrụ grouting, nchekwa nkeji na tanks agitation iji manten homogeneity, na mgbe ahụ nnyefe site na pumps cavity na-aga n'ihu ma ọ bụ piston pumps na ebe ntinye ebe ngwaọrụ dị n'okpuru ma ọ bụ pipes tube kewapụtara na-ekesa grouting n'akụkụ na n'elu dịka atụmatụ imewe. Uru ngwa ahụ gụnyere ọtụtụ ụdị igwe dị iche iche nke nwere ike ịrụ ọrụ n'otu n'otu ma ọ bụ dị ka usoro jikọtara. Ụlọ ọrụ grouting na-ejikọta hoppers ihe ndị na-adịghị mma, usoro ịkekọrịta mmiri, na mixers ọsọ ọsọ nwere ike ịmepụta 5 ruo 50+ cubic mita nke grouting kwa elekere dabere na oke. Pumps cavity na-aga n'ihu (peristaltic) na-achịkwa ngwa ntinye na-adabere na nrụgide n'ihi ikike ha iji jikwaa slurry cementitious na-emebi emebi na ịmaintain displacement kwụsie ike n'etiti nrụgide dị iche iche. Usoro agitation na circulation na-maintain consistency grouting n'oge nchekwa na njem, nke dị mkpa iji gbochie ntọhapụ cement na usoro mmiri-cement dị elu. Units monitoring nrụgide na ịkekọrịta na-enye ohere maka mgbanwe n'oge a na-eme nke ntinye, ebe usoro ndekọ data akpaaka na-edekọ nrụgide, olu, na oge signatures dịka ihe akaebe nke ịkwado atụmatụ imewe. Nhọrọ nke ngwa grouting dabere na ọtụtụ ihe ndị teknụzụ gụnyere viscosity na mmiri-cement ratio nke grouting akọwapụtara (na-emetụta ụdị pump na mkpa ike), nrụgide ntinye imewe (na-agba ọsọ site na 10 bar maka ala soilcrete columns ruo 100+ bar maka ngwa jet grouting), ọnụego mmepụta chọrọ na olu grouting niile maka ọrụ ahụ, ihe mgbochi ịnweta saịtị na-emetụta ọnọdụ ngwa, na mkpa maka monitoring nrụgide na olu n'oge a na-eme iji gboo usoro nkwado àgwà. Ihe ndị metụtara gburugburu ebe obibi, dịka ịbelata grouting na njikwa ihe ndị fọdụrụ, na-emetụta ịhọrọ ngwa ka ọ bụrụ atụmatụ usoro mechiri emechi na njikwa fọdụrụ. Ọrụ grouting na-achịkwa site na ụkpụrụ ndị metụtara gụnyere EN 14679 (imepụta ọrụ geotechnical pụrụ iche—mgbidi diaphragm), EN 12716 (grouting nke ala—nkọwa na nkọwa), ISO 12572 (nchịkọta arụmọrụ nke ngwaahịa grouting), na DIN 4126 (mgbidi diaphragm). Ụkpụrụ ndị a na-achịkọta ụkpụrụ arụmọrụ kacha nta maka mmepe ike grouting, oke nrụgide ntinye, na ihe ndị a chọrọ n'akwụkwọ nke ngwa grouting ga-akwado iji hụ na nkwado nkwekọrịta na ịdịgide ogologo oge nke ntinye ntọala omimi.