Gabatarwar samfur
Bailey Bridge Rock: ana amfani da shi don sarrafa alkiblar truss ɗin turawa da ɗaukar nauyin gada. An shirya ƙarfe na shim na rabin-crescent a ƙarƙashinsa, wanda ya dace don tallafawa a kan katako na gada na gada. Dutsen yana iya jujjuya sama da ƙasa kyauta. Akwai kananan rollers 4 a bangarorin biyu. Lokacin turawa da jan tazarar gadar, ƙananan igiyoyin truss koyaushe ana sarrafa su a tsakiyar dutsen don tabbatar da alƙawarin turawa da ja tazarar gadar. Ya kamata a kafa dutsen da nadi a bangarorin biyu na macijin. Dutsen yana da nauyin kilogiram 102 kuma matsakaicin ƙarfin ɗaukar kaya shine 250 kN.
Aikace-aikace
Matsakaicin gangaren wurin da aka taru bai kamata ya wuce 3% ba, kuma gangaren da ke kwance ya kamata ya kasance a kwance. Saita abin nadi a matsayin abin abin nadi, kuma ya kamata a sanya tiren samfurin a ƙasa. Kowane dutse yana ba da damar jeri ɗaya kawai na trusses ya wuce. Lokacin da aka kafa gada mai layi daya, ana sanya rockers biyu akan kowane banki; idan aka kafa gadoji na layi biyu da uku, sai a sanya rockers hudu akan kowane banki. Lokacin tura layuka uku na gadoji, don gujewa hana shingen layin waje mai santsi, yakamata a cire rollers na waje da ke ƙarƙashin layin tsakiyar. Nisa tsakanin dutsen da farantin tallafi yana da kusan 1.0 m, kuma aƙalla bai wuce 0.75 m ba. An saita farantin wurin zama a matsayin axis farantin kujera. Tunda ginin gada yana da 79 cm sama da ƙasan farantin wurin zama, ya kamata a tono matsayin farantin wurin da kyau don rage haɓakar bene na gada. Gabaɗaya, bambancin tsayi tsakanin tudun gada da farfajiyar hanya bai kamata ya wuce 30 cm ba.
