Answer
Uburebure burebure bwa Crest-to-Crest amasoko (aho $ L_ {ubuntu} / D_m> 1.5 $) arashobora guhitanwa cyangwa 'guswera' mugihe uhagaritswe. Uburebure bwurukuta rwa radial $ b $ bugira uruhare muburyo bukomeye. Kugirango wirinde gukomera, isoko igomba kuyoborwa nigiti cyangwa muri bore. Ihanagura rigomba kuba rito ariko rihagije kugirango yemere kwaguka diameter mugihe cyo kwikuramo. Niba nta buyobozi bushoboka, injeniyeri agomba kongera ubugari bwa radiyo $ b $ kugirango atezimbere umwanya wa inertia $ I = \ frac {b t ^ 3} {12} $ ugereranije nicyerekezo cya axial, byongera neza umutwaro uremereye $ P_ {cr} $.