Njira yobowola mozungulira ya granite ndi miyala ina yolimba

Makhalidwe a mapangidwe a miyala yolimba monga granite ndi chiopsezo chopanga dzenje. Popanga maziko a milu ya milatho ikuluikulu, miluyo imafunika kulowa mu thanthwe lolimba lolimba mpaka kuya kwina, ndipo m'mimba mwake mwa milu yopangidwira maziko awa amakhala pamwamba pa 1.5mm. Ngakhale mpaka 2 m. Kubowolera m'miyala yolimba yolimba ngati iyi kumapangitsa kuti pakhale zofunikira kwambiri pamagetsi ndi kukakamiza kwa zida, nthawi zambiri zimafunikira torque pamwamba pa zida za 280kN.m. Pobowola mumtundu uwu wa mapangidwe, kutayika kwa mano obowola ndi kwakukulu kwambiri, ndipo zofunikira zapamwamba zimayikidwa pa kukana kugwedezeka kwa zipangizo.

Njira yopangira pobowola mozungulira imagwiritsidwa ntchito popanga miyala yolimba monga granite ndi sandstone. Miyezo iyenera kutengedwa kuchokera ku mfundo zotsatirazi kuti bowo lipange bwino komanso kuchepetsa zoopsa.

(1) Zida zokhala ndi mphamvu ya 280kN.m ndi pamwambapa ziyenera kusankhidwa pomanga pobowola. Konzani kubowola mano ndi kuuma kwambiri ndi bwino pogaya ntchito pasadakhale. Madzi ayenera kuwonjezeredwa ku mapangidwe a anhydrous kuti achepetse kuwonongeka kwa mano obowola.

(2) Konzani bwino zida zobowola. Pobowola mabowo a milu yayikulu m'mimba mwake mwa mtundu uwu wa mapangidwe, njira yobowola yokhazikika iyenera kusankhidwa. Mu gawo loyamba, kubowola mbiya yotalikirapo yokhala ndi mainchesi 600mm ~ 800mm kuyenera kusankhidwa kuti itulutse pachimake ndikupanga nkhope yaulere; kapena kubowola kakang'ono kozungulira kozungulira kayenera kusankhidwa kuti mubowole kuti mupange nkhope yaulere.

(3) Pamene mabowo opendekeka achitika pamiyala yolimba, kumakhala kovuta kwambiri kusesa mabowo. Chifukwa chake, mukakumana ndi thanthwe lopendekeka, liyenera kuwongoleredwa musanabowole bwino.