Triple fluid jet grouting bụ teknụzụ mmezi ala na nkwụsị ala nke dị elu nke na-eji ntinye nke akụkụ mmiri atọ dị iche iche—slurry simenti, ikuku ma ọ bụ nitrogen na-emepụta nrụgide, na mmiri—site na nozzle concentric n'ime oghere otu iji mepụta ogige ala ka mma nke nwere ike ime ka ike dịkwuo elu na belata permeability. Usoro a na-anọchi anya ụdị kachasị elu nke teknụzụ jet grouting ma na-arụ ọrụ dị mkpa na injinịa mgbọrọgwụ omimi, nkwụsị ala, na ọrụ mmezi ebe ọnọdụ geotechnical na-achọ ka a chịkwaa usoro ala na mmetụta gburugburu ebe obibi dị ala. Ngwa ndị bụ isi nke triple fluid jet grouting gụnyere nrụpụta mgbidi secant pile na mgbidi tangent pile maka nkwado nchịkọta na nrụpụta basement, itinye mkpuchi mkpuchi na ọdọ mmiri na n'okpuru mgbidi dị ugbu a iji belata seepage na hydraulic uplift, pre-grouting nke strata na-adịghị ike n'okpuru mgbidi pile iji mee ka ikike ibu na-achịkwa ntughari, na ịmepụta ogige grout na-aga n'ihu maka ngwakọta ala na densification ala na ala ndị na-esiri ike gụnyere clays dị nro, silts, nkume a na-emebi, na ihe na-emepụta na mmiri ala. Teknụzụ a bara uru karị na gburugburu obodo na ebe ncheta ebe usoro nchịkọta ala ọdịnala na-eweta ihe ize ndụ na-adịghị anabata nke mmegharị elu, vibration, na subsidence na ihe owuwu na ụlọ ọrụ ndị dị n'akụkụ. Usoro ọrụ nke triple fluid jet grouting gụnyere ntinye nke ikuku ma ọ bụ nitrogen na-emepụta nrụgide (n'ozuzu 15–30 MPa) nke na-eme ka slurry simenti (ntinye na 25–50 MPa) site na nozzle monitor concentric nke a na-emegharị, ebe mmiri na-emepụta nrụgide ma ọ bụ slurry na-adịghị ike (na nrụgide dị ala nke 5–15 MPa) na-etinye na otu oge iji melite kinetics erosion na arụmọrụ ngwakọta n'ime ala gburugburu. Ntinye nke atọ a na-enye njikwa ka mma na radius erosion, ịdị n'otu nke diameter ogige, na mmepe ike ikpeazụ ma e jiri ya tụnyere usoro mmiri otu ma ọ bụ abụọ. Ngwakọta slurry grout na-ejikarị mmiri na simenti na-erughị 1.0:1 na 2.0:1, dabere na ihe achọrọ permeability na ọnọdụ ala, ma na-ejikarị ihe ndị ọzọ na-eme ka simenti, bentonite, ma ọ bụ silica fume iji gbanwee njirimara penetration, mmepe ike, na ịdịgide ogologo oge. Nhazi ngwá ọrụ maka usoro triple fluid jet grouting gụnyere ngwá ọrụ drilling kwụsiri ike nke nwere manifold ntinye triple-feed na-edobe njikwa nrụgide onwe ha, ikpo okwu drilling rotary nwere ngwá ọrụ ngwakọta na compressor, na ngwá ọrụ drilling-grouting pụrụ iche nwere ike idobe usoro nrụgide ziri ezi n'etiti mmiri. Ihe ndị bụ isi nke usoro a gụnyere compressors diesel (nke kachasị 10–15 cubic mita kwa nkeji na 30 MPa), ụlọ ngwakọta grout na ụlọ ọrụ na-agba ọsọ na-agba ọsọ, pumps na-emepụta nrụgide dị elu na-arụ ọrụ na nrụgide ma ọ bụ na-arụ ọrụ na njikwa, valves decay, na casing borehole pụrụ iche nwere nozzle concentric e mere iji chịkwaa oge ntinye na ọnụego mmiri. Nhọrọ nke usoro triple fluid jet grouting na-adabere na nkọwa strata ala a tụrụ aro na ịdị arọ, diameter ogige achọrọ (n'ozuzu 0.6–3.5 mita), ọkwa ntinye achọrọ, ọnọdụ mmiri ala, na ụlọ ọrụ mobilization dị. Nchekwa injinịa gụnyere ịmata nrụgide ntinye kwesịrị ekwesị maka njikọ ala na permeability, chemistry grout nke a haziri maka ịdịgide na leachability, usoro spacing ogige iji hụ na usoro a na-eme, na usoro nyocha iji kwado geometries ogige a rụpụtara na mmepe ike. Ụkpụrụ ụlọ ọrụ gụnyere EN 1538 (Nrụpụta nke ọrụ geotechnical pụrụ iche—Mgbidi diaphragm), EN 14679 (Nrụpụta nke ọrụ geotechnical pụrụ iche—Jet grouting), na ụkpụrụ imewe mba (German DIN 4093, British HA 68/94) nke na-emepụta nkọwa ogige kacha nta, nrụgide, usoro ngwakọta, na ihe achọrọ maka nkwado maka ọrụ triple fluid jet grouting na ngwa injinịa mgbọrọgwụ.