Posachedwapa, KR90A pobowola mozungulira maziko a Tyhen maziko amangidwa pulojekiti yolimbikitsa fakitale ku Luoyang, Province la Henan.Zikunenedwa kuti geology ndi backfill wa miyala ndi silt, maziko kukhazikika adzachititsa ming'alu ndi kukhudza chitetezo cha surficial yomanga.Ntchito pa malo ogwirira ntchito imaphatikizapo grouting yoyamba kudzaza ming'alu ndi kubweza mipata mu strata, kutsatiridwa ndi kugwiritsa ntchito kubowola mulu wotopetsa kuti apange maziko opangira maziko atsopano, potsirizira pake kukwaniritsa cholinga cha kulimbikitsa pansi.
Zovuta za polojekitiyi ndi izi:
1. Kumanga mu fakitale ndi malire a kutalika kwa 12 m, malo omangapo ndi opapatiza, kubowola m'mimba mwake 600mm ndi kubowola kuya 20 ~ 25m.
2. Geology makamaka ndi backfilling silt, miyala yayikulu ndi yambiri, kotero kuti mabowo ndi osavuta kugwa.
3. Simenti slurry jekeseni mu ming'alu ndi mipata zinachititsa kuuma mosagwirizana pobowola, kuti atengeke kupatuka.Pofuna kuthana ndi mavutowa, mainjiniya ochokera ku Tyhen Foundation adapanga njira yaukadaulo.Anasankha ogwiritsira ntchito aluso ndikuwonjezera ubwino wa KR90A rotary drilling rig, pogwiritsa ntchito makina ophatikizira mchenga owirikiza kawiri ndi mitu yobowola mozungulira.Njirayi idawalola kuti azitha kuwongolera kukakamiza kwa chowongolera ndikugwiritsa ntchito mwayi wamakokedwe ake apamwamba, ndikulowa bwino pamagawo obwerera.Zotsatira zake, ndalama zomanga zidachepetsedwa kwa kasitomala, ndikutamandidwa ndi omwe adagwira nawo ntchitoyo.
Tysim KR90A rotary pobowola rig imakhala ndi injini ya 86kW, yolemera matani 25, ndipo imatha kukumba mabowo okhala ndi mainchesi kuyambira 400mm mpaka 1200mm, kuya kwake kokwanira mpaka 28 metres.Chombocho chimapangidwa ndi zomangamanga zopepuka, zomwe zimapangitsa kuti injini igwiritse ntchito mphamvu zochepa chifukwa cha kuchepa kwake.Pansi pamikhalidwe yofananira yomanga, mphamvu zambiri zama injini zimaperekedwa pakubowola.Kuphatikiza apo, ndodo zobowola zomwe zimagwiritsidwa ntchito ndi chowongolera ndizopepuka, zomwe zimalola kukweza kwambiri ndikutsitsa liwiro mpaka 75m / min pansi pazikhalidwe zomwezo zachitetezo.Liwiro lozungulira la rig limatha kufika 5r / min, ndipo mutu wamagetsi ukhoza kuzungulira mofulumira pa 8-30r / min.Kapangidwe kameneka kamapangitsa nthaka kulowa mwachangu, kuthira mafuta pang'ono, komanso kumanga bwino kwambiri.
Nthawi yotumiza: Oct-26-2023