Ngwá ọrụ micropiling multifunctional nke etinyere na Kit Jet Grouting

Ngwá ọrụ micropiling nke nwere ọrụ ọtụtụ na jet grouting bụ ngwọta jikọtara ọnụ maka ọrụ ntọala miri emi nke na-ejikọta ntinye ụkwụ nwere obere diamita na ọgwụgwọ ala na njikọta n'ala. A na-eji ụdị ngwá ọrụ a eme ihe maka ndị na-arụ ọrụ na-achọ ngwọta injinia n'okpuru ala nke nwere mgbanwe ebe ntinye ụkwụ miri emi bụ ihe na-adịghị mma n'ihi oke oghere, ihe achọrọ ibu, ma ọ bụ ọnọdụ ala nke chọrọ njikọta na nkwado ntọala. Ngwá ọrụ micropiling na-enye ikike ntọala nke ụlọ, ebe usoro jet grouting jikọtara na ya na-enye ohere maka ọgwụgwọ ala, belata permeability, na ịkwalite ike n'otu oge, na-eme ka oge ọrụ dum na mpaghara saịtị belata. A na-ejikarị ngwá ọrụ ndị a na-arụ ọrụ n'ịkwado na mmezi seismic, ebe ụlọ ndị dị ugbu a chọrọ nkwado ntọala na-enweghị ịkwaga. Ha na-adabara nke ọma maka ịmepụta mkpuchi jet grouting na ụlọ mmiri, mmezi ebe a na-emebi, na ngwa njikwa mmiri. Na ọrụ mgbidi diaphragm, njikọta na-enye ohere maka ịrụ ọrụ n'otu oge nke mgbidi secant ma ọ bụ tangent mgbe a na-eme ọgwụgwọ jet grouting iji nweta nkọwa permeability achọrọ. Na mgbakwunye, ụdị ngwá ọrụ a na-akwado ọrụ ngwakọta ala maka imezi ala na mpaghara dị nro ma ọ bụ compressible ebe ịkwalite ikike ibu na-abịa tupu ntinye ihe owuwu. Usoro ọrụ na-ejikọta usoro ịkụ ụkwụ rotary ma ọ bụ percussion maka ntinye micropile na usoro injection jet grouting nke nwere nrụgide dị elu. N'oge mmepe micropile, a na-ejikarị akpụkpọ ụkwụ na-agba ọsọ ma na-aga n'ala, na-agba ọsọ n'otu oge na ngwaọrụ ịkụ ụkwụ n'ime. Usoro grouting jikọtara—na-arụ ọrụ n'onwe ya ma ọ bụ n'otu oge—na-ejikwa slurry simenti na nrụgide nke na-adịkarị n'etiti 300 na 600 bar site na ọtụtụ ebe ntinye a na-ekesa n'ogologo ọgwụgwọ. Usoro abụọ a na-enye ohere maka ọgwụgwọ ala ịhọrọ tupu ma ọ bụ n'otu oge na ntinye micropile, na-eme ka nnyefe ibu na arụmọrụ ụlọ ka mma. Ihe mejupụtara jet grouting na-emepụta mkpuchi ma ọ bụ ahịrị nke geometry jikwaa dabere na usoro ntinye (monojet, bijet, ma ọ bụ trijet) na ọsọ nke isi ngwá ọrụ. Nhazi ngwá ọrụ n'ịdị a na-agbanwe agbanwe nke ukwuu dabere na ikike miri emi (n'ozuzu 10–50 mita), diamita micropile (150–350 mm), akara nrụgide grouting, na ihe achọrọ maka ịkwaga. Nhazi ngwá ọrụ na-agụnye site na ngwá ọrụ dị mfe, nke a na-etinye na ụzọ, ruo na usoro buru ibu nke a na-etinye na akụrụngwa maka ọnụ ọgụgụ mmepụta dị elu. Ụlọ grouting jikọtara, usoro nyocha nrụgide, na njikwa omimi/nrụgide akpaaka bụ atụmatụ ọkọlọtọ. Ihe dị iche bụ ogo kachasị nke ịkụ, olu grouting na ikike nrụgide, ịdị adị nke OD nke akpụkpọ ụkwụ, na nhọrọ njikọ jet grouting modular. Nhọrọ ngwá ọrụ dabere na ọtụtụ paramita teknụzụ: stratigraphy n'okpuru ala na ikike ịkụ, ikike ibu achọrọ na ụkpụrụ nrụgide, nkọwa omimi na diamita ọgwụgwọ jet grouting, oghere ọrụ dị, na ihe mgbochi nke ngwá ọrụ, na oge ọrụ. Ndị na-arụ ọrụ ga-enyocha ma ntinye micropiling na grouting n'otu oge ma ọ bụ ọrụ na-esochi ga-ejere mkpa ọrụ. Ihu mmiri nke ala na njikwa mmiri chọrọ na-emetụta ihe mejupụtara na nrụgide usoro. Ụkpụrụ na ụkpụrụ mmezu metụtara gụnyere EN 14199 (micropiles), EN 14490 (ala na nkume anchors), ISO 13761 (grouting), na DIN 4128 (jet grouting), na mgbanwe mpaghara na-egosipụta omume geotechnical mpaghara na ụkpụrụ gburugburu ebe obibi.