Posachedwapa, Tyhen Foundation's low headroom KR300ES rotary drilling rig idagwira nawo ntchito yomanga projekiti ya Guangzhou-Baiyun District Jingguang High-Speed Rail Line 5.
Monga malo oyendetsera njanji zamatawuni aku Guangzhou, Baiyun Station ndiye malo oyamba akulu omangidwa molingana ndi malingaliro amakono ophatikizika a mayendedwe ku Guangzhou.Ntchitoyi makamaka ikukhudza ntchito yomanga Siteshoni yatsopano ya Guangzhou Baiyun, komanso kukonza malo ogwirizana nawo monga Dalang Bus Maintenance Depot ndi kulumikiza njanji.Ntchitoyi ikuyembekezeka kutha mu 2023.
KR300ES Low headroom rotary pobowola pomangapo Guangzhou high-liwiro njanji mulu mulu wa 1000mm, mulu kuya pakati 28 ~ 33 metres, zinthu zachilengedwe ndi zovuta: makamaka kudzaza (makamaka mapangidwe backfill, zomangamanga zinyalala zazikulu), dongo dongo. , silt (mamita 3-6, dzenje losavuta kugwa), miyala, miyala yolimba yolimba, siltstone wonyezimira.Dothi lodzaza kumtunda ndi dzenje la chidebe cha mchenga ndiyeno pafupi mamita 5 pansi pa chubu.Pambuyo pogunda mchengawo, matope okhuthala amasinthidwa kuti madzi asalowe.Lowani mwala wopendekeka, kuboworani mozama kenako ndikuuwedza ndi ndowa yamchenga.Ngati slurry kutayikira m'phanga laling'ono karst, ndiye backfill simenti, ndi kupitiriza kubowola pambuyo solidifies simenti.KR300ES Low headroom rotary pobowolera (utali wa 10.9 metres) kutalika kwa 11 metres, yokhala ndi 300 kN.Mutu waukulu wamagetsi a torque wa m umapereka chiŵerengero choyenera chamatope kuti chiteteze khoma kuti athetse kupanga mapangidwe a mchenga wa quicksand ndi mphamvu yamphamvu yopititsa patsogolo ntchito yomanga yolowera mwala.Imathetsa bwino mavuto omwe amakumana nawo m'malo ang'onoang'ono, mulu waukulu m'mimba mwake, kuya kwakuya ndi mwala wovuta.Zomangamanga kudya ndi mkulu Mwachangu makasitomala kupanga ndalama, anapambana yomanga malo ogwira ntchito matamando.
KR300ES low headroom pobowola pobowola amagwiritsidwa ntchito pomanga njanji yothamanga kwambiri ya Guangzhou, pomwe mulu wake ndi 1000mm, ndipo kuya kwa mulu kumayambira 28 mpaka 33 metres.Maonekedwe a geological ndi ovuta ndipo amaphatikiza zinthu zosiyanasiyana monga dothi lodzaza mosiyanasiyana (makamaka zodzaza ndi tinthu tating'onoting'ono tomanga), dongo lamchenga, mchenga wamatope (kuyambira 3 mpaka 6 metres, womwe umakonda kugwa), magawo amiyala ozungulira, matope opindika kwambiri. sandstone, ndi miyala yamtengo wapatali ya silty sandstone.Pa dothi lakumbuyo lakumbuyo, chidebe chokokera mchenga chimagwiritsidwa ntchito kupanga choyikapo mozungulira 5 metres pansi.
Mukafika pamchenga, matope amatope ambiri amagwiritsidwa ntchito kuti asalowe m'madzi.Mukakumana ndi zigawo za miyala, mbiya yapakati imagwiritsidwa ntchito kulowa, yotsatiridwa ndi kugwiritsa ntchito chidebe chokokera mchenga kuchotsa zinthuzo.Pakang'ono kapena ming'alu, simenti imabayidwa, ndipo kubowola kumapitilira simentiyo ikalimba.
KR300ES low headroom rotary pobowola cholumikizira, ndi kutalika kwa 10.9 metres, imagwira ntchito pamalo okwera mamita 11 ndipo ili ndi mutu wamphamvu wa 300kN.m torque.Amagwiritsidwa ntchito ndi chiŵerengero choyenera cha matope pofuna kuteteza khoma, kuthana ndi zovuta zogwirira ntchito m'mipangidwe ya mchenga woyenda ndikuwonjezera luso la zomangamanga polowa m'matanthwe.Chingwechi chimathetsa bwino mavuto omwe amakumana nawo pomanga, kuphatikiza malo ochepa, mulu waukulu wa mulu, kuya kwakukulu, ndi kulowa kwa miyala yovuta.Kuthamanga kwake komanso luso lake lamangamanga latamandidwa ndi onse ogwira ntchito pamalo omangawo, zomwe zapindulitsa makasitomala.
Nthawi yotumiza: Oct-25-2023