Ci gaban ductule, Bututu Shed, bututun grout don tono rami
1. Bayani mai sauƙi:
Cigaban ƙananan magudanar ruwa hanya ce ta tsari a cikin aikin tono rami. An fi amfani dashi a cikin yanki mai rauni mai rauni
tare da ɗan gajeren lokacin tabbatar da kai, sashin da aka binne mara zurfi, sashin matsa lamba a ƙofar, sashin yashi,
sashin yashi da tsakuwa, yankin da ya karye laifin da sauran sassan. pre-goyon baya.
2. Daraja:
Q195, Q235, SS400, S235, STK400
3. Ka'idar tallafi:
1) Jagoran ƙananan magudanar ruwa hanya ce ta taimako mai tasiri sosai don daidaita fuskar hakowa.
A cikin ginin rarraunan dutsen da ya karye, ƙananan mashigar ruwa na ci gaba na taka rawa wajen ƙarfafawa
sako-sako da dutse stratum. Bayan grouting, kwanciyar hankali na sako-sako da rauni kewaye da dutsen yana inganta, wanda yake da amfani
zuwa kwanciyar hankali na dutsen da ke kewaye da shi bayan hakowa da kuma kammala lokacin tallafi na farko. , don haka
Dutsen da ke kewaye da shi ba zai lalace kuma ya lalace ba har sai ya rushe.
2) Ci-gaba kananan bututu grouting ya dace da rauni kewaye dutsen na rami baka, sako-sako da, uncohesive ƙasa Layer,
yashi Layer tare da matalauta kai stabilizing iyawa da tsakuwa (tsakuwa) dutse matakin karya dutse Layer.
3) Yanayin da kwanciyar hankali na dutsen da ke kewaye da shi za a iya canza shi ta hanyar grouting ta hanyar ƙananan ƙananan hanyoyi.
Bayan an yi allurar a cikin rarrauna ko sako-sako, ko karaya na fashewar dutsen da ke kewaye da ruwa mai dauke da ruwa.
yana iya kasancewa cikin kusanci da kuma ƙarfafawa. Sulurry yana maye gurbin danshi da iska tsakanin sassan ƙasa da kuma cikin dutsen
fissures ta hanyar cika, rarrabuwa, da sauransu, sannan ya mamaye matsayinsa. , Jikin da aka haɗa tare da babban ƙarfi da mai kyau ruwa
yin aiki sosai yana inganta sako-sako da fashe kewayen dutsen. .
4. Siga:
Ya kamata a ƙayyade ma'auni don gina ƙananan ƙananan magudanar ruwa bisa ga iyakokin ƙasa
yanayi na dutsen da ke kewaye, yanayin dutsen da ke kewaye, nau'i na tsarin tallafi da girman girman
sashin rami. Gabaɗaya, ana saita ginin ƙananan magudanan ruwa na ci gaba tare da layin kwandon haƙa a cikin kewayon digiri 120.
A karkashin yanayi na al'ada: tsayin ƙananan magudanar ruwa L = tsayin mataki na sama + 2m. Ƙananan catheter diamita: 38-50mm.
An yi ɓangaren gaba na ƙananan magudanar ruwa zuwa siffar mazugi mai tsayin kusan 10cm, kuma an yi wa ƙwanƙarar karfe tare da diamita na 6 ~ 8mm a ƙarshen wutsiya.
Gabaɗaya kwanar extrapolation ana sarrafa shi a digiri 10 zuwa 15. Ana sarrafa matsa lamba grouting a kusan 2MP.
Matsakaicin radius mai yaduwa shine gabaɗaya 0.5m. Ana sarrafa saurin grouting a 50-100L/MIN. Ana sarrafa tsayin haɗe-haɗe na kowane ƙaramin magudanar ruwa mai kewayawa tsakanin 1m.
5. Samar da:
1) Gabaɗaya, an yi shi da bututun ƙarfe na welded ko sumul tare da diamita na 38 ~ 50mm.
2) Yi siffar mazugi mai tsayi kusan 10cm a gaban ƙarshen ƙaramin magudanar ruwa, sannan a haɗa hoop ɗin ƙarfe mai diamita na 6 ~ 8mm a ƙarshen wutsiya.
Ba a buɗe ramuka tsakanin 100cm daga ƙarshen baya, kuma an shirya ragowar ɓangaren tare da rami mai diamita na 6mm a cikin siffar furen furen 20 ~ 30cm.
6. Shigarwa:
Ana iya amfani da hanyar kai tsaye ko ta hanyar turawa.
1) Ramin ramuka tare da rawar wuta na lantarki, diamita na ramin ya fi girma fiye da 10-20mm na diamita na ƙananan magudanar ruwa, kuma zurfin rami ya dogara da tsawon mashigin.
2) Idan yana da wuya a saka catheter, yi amfani da rawar motsa jiki na pneumatic tare da aikin jacking don jack catheter.
3) Yi amfani da abin hurawa don busa tarkacen da ke cikin rami.
4) Ƙarshen ƙaramin catheter ɗin ana naɗe shi da zaren auduga, ta yadda ƙaramin catheter ɗin yana kusa da ramin da aka haƙa, sannan a toshe tashar ruwan da babu auduga.
5) Bayan an shigar da ƙananan magudanar ruwa, dole ne a rufe shi da kankare da aka fesa a cikin wani yanki na kewaye da shi. Ana sarrafa kauri na fesa a 5-8cm.
7. Hoto:
