Patsogolo ductule, Chitoliro Shed, grout chitoliro pofukula ngalandeyo
1. Kufotokozera kosavuta:
Njira yaying'ono yotsogola ndi njira yopangira njira yofukula ngalandeyo. Amagwiritsidwa ntchito makamaka m'dera lofooka losweka
ndi nthawi yaifupi yodzilimbitsa, gawo losaya kwambiri, gawo lopanikizika pakhomo, gawo la mchenga,
gawo la mchenga ndi miyala, chigawo chosweka cholakwa ndi zigawo zina. chithandizo choyambirira.
2. Gulu:
Q195, Q235, SS400, S235, STK400
3. Mfundo yothandizira:
1) Njira yaying'ono yotsogola ndi njira yothandiza kwambiri yopangira kukhazikika kwa nkhope yakukumba.
Pakumanga miyala yofooka komanso yosweka, njira yaying'ono yotsogola imathandizira kulimbikitsa
stratum ya rock yotayirira. Pambuyo pa grouting, kukhazikika kwa thanthwe lotayirira ndi lofooka lozungulira kumalimbikitsidwa, zomwe zimapindulitsa
kukhazikika kwa thanthwe lozungulira pambuyo pofukula ndi kutha kwa nthawi yoyamba yothandizira. ,kuti
thanthwe lozungulira silidzawonongeka ndi kuwonongeka mpaka litagwa.
2) Chitoliro chaching'ono chotsogola ndi choyenera pamwala wofooka wozungulira wa ngalandeyo, wosanjikiza, wosanjikiza dothi,
mchenga wosanjikiza wopanda mphamvu wokhazikika wokhazikika ndi miyala (mwala) mulingo wamwala wosweka.
3) Mkhalidwe ndi kukhazikika kwa thanthwe lozungulira lingasinthidwe ndi grouting kudzera munjira yaying'ono yapamwamba.
Grouting ikabayidwa m'malo ofooka kapena otayirira kapena ming'alu ya mwala wosweka wosweka,
ikhoza kukhudzana kwambiri ndi kulimbitsa. Dothi lotayiriralo limalowa m’malo mwa chinyezi ndi mpweya pakati pa tinthu tating’onoting’ono ta nthaka ndi mwala
ming'alu podzaza, kupatukana, etc., ndiyeno imatenga malo ake. , Thupi lophatikizidwa lomwe lili ndi mphamvu zambiri komanso lopanda madzi
ntchito bwino kwambiri lotayirira ndi wosweka ozungulira thanthwe. .
4. Parameter:
Zomwe zimapangidwira pomanga ngalande yaying'ono yotsogola ziyenera kutsimikiziridwa molingana ndi malire a geological
mikhalidwe ya thanthwe lozungulira, mkhalidwe wa thanthwe lozungulira, mawonekedwe a mawonekedwe othandizira ndi kukula kwa
gawo la tunnel. Nthawi zambiri, kupanga ma ngalande ang'onoang'ono otsogola amayikidwa m'mphepete mwa mizere yofukula pamtunda wa madigiri 120.
Pazochitika zachilendo: kutalika kwa ngalande yaying'ono L = kutalika kwa sitepe yapamwamba + 2m. Small catheter awiri: 38-50mm.
Gawo lakutsogolo la ngalande yaying'ono limapangidwa kukhala mawonekedwe a cone ndi kutalika pafupifupi 10cm, ndipo hoop yachitsulo yokhala ndi mainchesi 6 ~ 8mm imawotchedwa kumapeto kwa mchira.
Mbali ya extrapolation nthawi zambiri imayendetsedwa pa madigiri 10 mpaka 15 madigiri. Kuthamanga kwa grouting kumayendetsedwa pafupifupi 2MP.
Kutalika kwa matope nthawi zambiri kumakhala 0.5m. Kuthamanga kwa grouting kumayendetsedwa pa 50-100L / MIN. Kutalikirana kwa kanjira kakang'ono kakang'ono kamene kamazungulira kumayendetsedwa mkati mwa 1m.
5. Kupanga:
1) Nthawi zambiri, amapangidwa ndi mipope zitsulo welded kapena opanda msoko ndi awiri a 38 ~ 50mm.
2) Pangani mawonekedwe a chulucho pafupifupi 10cm kutalika kutsogolo kwa ngalande yaying'ono, ndikuwotchererani hoop yachitsulo yokhala ndi mainchesi 6 ~ 8mm kumapeto kwa mchira.
Palibe mabowo omwe amatsegulidwa mkati mwa 100cm kuchokera kumapeto kumbuyo, ndipo gawo lotsalalo limakonzedwa ndi dzenje losefukira la 6mm mumtundu wa maluwa a 20 ~ 30cm.
6. Kuyika:
Njira yotsogolera kapena yolunjika ingagwiritsidwe ntchito.
1) Kubowola mabowo ndi kubowola magetsi, m'mimba mwake wa dzenje ndi lalikulu kuposa 10-20mm ya m'mimba mwake wa ngalande yaing'ono, ndipo kuya kwa dzenje kumadalira kutalika kwa ngalande.
2) Ngati kuli kovuta kuyika catheter, gwiritsani ntchito kubowola pneumatic ndi jacking ntchito kuti mutseke casing.
3) Gwiritsani ntchito chowuzira kuti mutulutse zinyalala mu dzenje.
4) Mapeto a catheter yaing'ono amakulungidwa ndi ulusi wa thonje, kotero kuti catheter yaying'ono imamangiriridwa pafupi ndi dzenje lobowola, ndipo doko lopanda kanthu limatsekedwa ndi thonje.
5) Pambuyo poyika ngalande yaying'ono, iyenera kusindikizidwa ndi konkire yopopera pakati pamitundu ina yozungulira. Kupaka utoto kumayendetsedwa pa 5-8cm.
7. Chithunzi:
