Grouting na permeation shine tsarin gyara ƙasa ƙwarai da ake amfani da shi don haɓaka ƙarfin ƙasa da rage yawan ruwa ta hanyar tiwatar da kayan grout na siminti ko sinadarai kusa da bututun ƙasa da rago. Wannan aikin shine muhimmi a cikin injiniyoyin kafa, musamman a cikin ayyukan da suka shafi kafa, gyaran kafa, da tabbatar da ƙasa ƙarƙashin gine-ginen wanzu. Duk da haka, grouting na permeation bai yi aiki ta hanyar motsin ƙasa ba, amma ya yi aiki ta hanyar grout inyasshe kusa da bututun ƙasa ba tare da canzawa yanayin ƙasa ba, wanda yake sa aikin ya dace da ayyukan da ake buƙatar ƙarancin motsin ƙasa. Aikin hajin ana buƙatar sa ake haɓaka ƙarfin ƙasa, rage zaɓaɓɓun ƙasa, da kuma kai tsaye a cikin gine-ginen geotechnical inda ake buƙatar gyara ƙasa.
Grout mixing da batching plants sune tsarin kayan aikin musamman da aka tsara don samarwa, haɗa, da kawo kayan cementitious a kan takamaiman takamaiman don amfani da kasa da kawar da ƙasa. Waɗannan wuraren aiki suna da mahimmanci a cikin ayyukan grouting na permeation, inda aka yi grout mai ƙarfi a cikin ƙasa da kankara don kawar da ƙarfin ɗaukar nauyi, rage zaɓen ƙasa, da haɓaka tsaurin ƙasa na foundation. Batching plants sun haɗu da kayan guda kamar Portland cement, bentonite, silica fume, water reducers, da rairayin rai a cikin kudade da aka kafa don samun siffofi na rheological da ake buƙata don sanya grout da nasara. Kayan aikin suna tabbatar da haɗin gwiwa na haɗin gwiwa da kiyaye ma'aunin aikin da ake buƙata don kora cikin ƙasashen mara ƙarfi, kankara mai ɓarna, da yankuna na canjin canjin da ake samu a lokacin ayyukan gine-gine na kasa.
Injection packers sune mahimman kayan aikin da ake amfani da su a cikin ayyukan grouting na permeation, suna aiki a matsayin hanyar da grout ake kawo cikin ƙasa da kankara don kawar da yanayin ƙasa da haɓaka siffofi na geotechnical. Waɗannan kayan aikin musamman an tsara su don aikawa a ƙasan mita na maɓuɓɓugar ruwa kuma suna ba da damar rarraba grout na cementitious ko sinadarai a cikin ƙasashen da ke kusa. Tsarin injection packer ya ba injiniyoyi damar samun tsaurin ƙasa na nufi, ƙarfin ɗaukar nauyi mai kawar da ƙasa, da rage canjin canjin a cikin ayyuka daga ayyukan gine-gine na kasa zuwa ayyukan kawar da ƙasa. Packers yawanci ana yin su daga kayan guntuwa masu karfi ko elastomer kuma suna zuwa a cikin saukaki da saukar kuɗin don shirya diameters na maɓuɓɓugar ruwa da buƙatun grouting. Suna aiki ta hanyar ƙirƙirar seal na hermetic a kan bangon maɓuɓɓugar ruwa, suna ba da umarnin grout da aka kawo cikin yankin da aka nufa maimakon a bar shi ya gudana ba tare da tsari ba a kan profile na maɓuɓɓugar ruwa.
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