In the mining and sawing operations in the mine, when the cutting surface enters the final stage, the old wire saw must be used to replace the wire saw in use .This is because in the final stage of cutting, especially the final stage of horizontal cutting, the connection area between the ore body and the separated body is relatively small, and only the steel wedge inserted between the horizontal plane is not enough to support the separation body, so it is difficult to ensure that the separation body will not collapse, leading to the accident of the beaded rope being pressed in the saw joint and scrapped. Especially for ore bodies with relatively developed fissures, local rock collapse in the separated bodies often occurs. Even if it is vertical cutting or block trimming cutting, the wire saw may be crushed in the saw gap and scrapped due to the side slip and dumping of the separated body. If a new wire saw or a wire saw with a certain service life is used to saw the last connection surface, encountering such an accident, the whole or most of the wire saw will be scrapped and unnecessary economic losses will be caused.
De réir cásanna éagsúla, is é an t-am athsholáthair go ginearálta le linn sábhadh cothrománach. Nuair a laghdaítear an t-achar idir an chonaic sreang isteach agus amach as an scoilt chonaic go 1.5-2.5 méadar, cuir rópa sreang d'aois atá beagnach briste in ionad an chonaic sreinge atá in úsáid, agus lean ar aghaidh le scaradh agus gearradh an dromchla ceangail deiridh den comhlacht méine agus an comhlacht scartha. Éilíonn an chéim dheireanach maidir le plánaí ingearacha a ghearradh nó gearrtha a dhíscaoileann agus a scamhadh, go n-éilíonn an cineál seo oibríochta freisin chun cinn nua a chur in ionad sean rópaí. Má tá suíomh an roth treorach suiteáilte i gceart, is féidir leis an sean-rópa sreang fiú a ghearradh tríd an scoilt go díreach gan aon chuid nasctha a fhágáil, ionas go mbeidh an dromchla gearrtha cothrom, agus go seachnófar é nuair a bhíonn an chuid deiridh scartha scartha, ceann amháin. déanfar taobh dented agus ardófar an taobh eile, rud a chuirfidh isteach ar fhoirmiú an bhloc.
