Njengoba sihamba sisuka kwenye indawo siya kwenye, sivame ukuthatha kalula inethiwekhi eyinkimbinkimbi yengqalasizinda yezitimela eyenza ukusebenza kwezitimela kube lula futhi kusebenze kahle. Enhliziyweni yale ngqalasizinda kukhona imisele yensimbi, eyakha ingxenye eyisisekelo yemizila yezitimela. Phakathi kwezinhlobo ezahlukene zemisele yensimbi etholakalayo, leyo enamathela kumazinga e-BS idlala indima ebalulekile ekuqinisekiseni ukuphepha nokuthembeka kwezinhlelo zezitimela.
Isitimela sensimbi esijwayelekile se-BS, eyaziwa nangokuthi iBritish Standard Rails, yaklanywa futhi yakhiqizwa ngokuhambisana nezincazelo ezibekwe yiBritish Standards Institution (BSI). Lezi zitimela zenzelwe ukuhlangabezana nezidingo zekhwalithi nokusebenza okuqinile, okwenza zibe ukukhetha okubalulekile kumaphrojekthi okwakhiwa nokugcinwa kwezitimela. Ukunamathela kumazinga e-BS kusho ukuzibophezela ekwenzeni kahle, ukuqina, kanye nokungaguquguquki ekukhiqizweni kwezitimela zensimbi, ekugcineni kunegalelo ekusebenzeni kahle nasekuphepheni kokusebenza kwezitimela.
Enye yezinzuzo ezibalulekile zama-rail ensimbi ajwayelekile e-BS amandla awo aphezulu nokuqina kwawo. Lawa ma-rail akhiwa kusetshenziswa izinto zensimbi ezisezingeni eliphezulu futhi ahlolwa ngokuqinile ukuqinisekisa ikhono lawo lokubekezelela imithwalo esindayo, izimo zezulu ezimbi kakhulu, kanye nokuguguleka okuqhubekayo. Ngenxa yalokho, anikeza ukumelana okungavamile nokuguqulwa, ukuqhekeka, kanye nokugqwala, ngaleyo ndlela andise isikhathi sokuphila kwemizila yesitimela futhi anciphise isidingo sokushintsha noma ukulungisa njalo. Lokhu kuqina kubalulekile ekugcineni ubuqotho bengqalasizinda yesitimela nokuvimbela ukuphazamiseka kwezinsizakalo zesitimela.
| BS11: Isitimela esijwayelekile sika-1985 | |||||||
| imodeli | usayizi (mm) | into ethile | ikhwalithi yezinto ezibonakalayo | ubude | |||
| ububanzi bekhanda | ukuphakama | ibhodi lesisekelo | ukujula kokhalo | (kg/m) | (m) | ||
| I-A(mm) | I-B(mm) | C(mm) | D(mm) | ||||
| 500 | 52.39 | 100.01 | 100.01 | 10.32 | 24.833 | 700 | 6-18 |
| 60 A | 57.15 | 114.3 | 109.54 | 11.11 | 30.618 | 900A | 6-18 |
| 60R | 57.15 | 114.3 | 109.54 | 11.11 | 29.822 | 700 | 6-18 |
| 70 A | 60.32 | 123.82 | 111.12 | 12.3 | 34.807 | 900A | 8-25 |
| 75 A | 61.91 | 128.59 | 14.3 | 12.7 | 37.455 | 900A | 8-25 |
| 75R | 61.91 | 128.59 | 122.24 | 13.1 | 37.041 | 900A | 8-25 |
| 80 A | 63.5 | 133.35 | 117.47 | 13.1 | 39.761 | 900A | 8-25 |
| 80 R | 63.5 | 133.35 | 127 | 13.49 | 39.674 | 900A | 8-25 |
| 90 A | 66.67 | 142.88 | 127 | 13.89 | 45.099 | 900A | 8-25 |
| 100A | 69.85 | 152.4 | 133.35 | 15.08 | 50.182 | 900A | 8-25 |
| 113A | 69.85 | 158.75 | 139.7 | 20 | 56.398 | 900A | 8-25 |
Ngaphezu kokwakhiwa kwazo okuqinile,izinsimbi zensimbizenzelwe ukuhlangabezana nokubekezelelana okuqondile kobukhulu kanye nokwejiyometri. Leli zinga lokunemba libalulekile ekuqinisekiseni ukuhamba okubushelelezi nokuzinzile kwezitimela ezindleleni. Ngokunamathela ezimisweni ezijwayelekile ze-BS, lezi zitimela zakhiwa ngamaphrofayili ahambisanayo, ukunemba, kanye nokuqondana, okubalulekile ekunciphiseni ukungahambi kahle kwethrekhi nokugcina ukuxhumana okuhle phakathi kwamasondo ezitimela kanye nezitimela. I-geometry enembile yezitimela zensimbi ezijwayelekile ze-BS inikela ekuphepheni kanye nenduduzo yokuhamba ngesitimela, kunciphisa ingozi yokuphuma kwesitimela futhi kuthuthukise ukusebenza kahle kwenethiwekhi yesitimela.
Ngaphezu kwalokho, ukunamathela kumazinga e-BS kuqinisekisa ukuthi izinsimbi zensimbi zidlula ezilinganisweni zokulawula ikhwalithi ngokuphelele kuyo yonke inqubo yokukhiqiza. Kusukela ekukhetheni izinto zokusetshenziswa kuya ekuhlolweni kokugcina kwezinsimbi eziqediwe, ukunamathela ngokuqinile kumazinga kuqinisekisa ukuthi izinsimbi zihlangabezana nezakhiwo ezidingekayo zemishini, ukwakheka kwamakhemikhali, kanye nezici zokusebenza. Leli zinga lokulawula ikhwalithi libalulekile ekufakeni ukuzethemba ekuthembekeni nasekusebenzeni kwezinsimbi zensimbi ezijwayelekile ze-BS, okuhlinzeka abaqhubi bezitimela nabaphathi bengqalasizinda ngesiqinisekiso sokuthi izinsimbi zizohlangabezana nezidingo zokusebenza kwezitimela ezisindayo njalo.
Ukubaluleka kwemizila yensimbi ejwayelekile ye-BS kudlulela ngale kwezimfanelo zayo zomzimba, njengoba futhi idlala indima ebalulekile ekukhuthazeni ukusebenzisana kanye nokulinganisa embonini yezitimela yomhlaba wonke. Ngokunamathela endinganisweni eyaziwayo nehlonishwayo njengendinganiso ye-BS, amaphrojekthi engqalasizinda yezitimela angazuza ekuvumelaneni nezinhlobo eziningi zezimpahla ezigoqekayo, izinhlelo zokubonisa, kanye nemishini yokulungisa eyenzelwe ukuhlangana kalula nemizila ehlangabezana nendinganiso efanayo. Lokhu kusebenzisana kwenza kube lula ukuthengwa, ukufakwa, kanye nezinqubo zokulungisa ingqalasizinda yezitimela, ekugcineni kuholele ekongeni izindleko kanye nokusebenza kahle kwabaqhubi bezitimela kanye neziphathimandla.
Ekuphetheni, ukusetshenziswa kwe-BSIsitimela Esijwayelekilekubaluleke kakhulu ekuthuthukisweni, ekunwetshweni, nasekugcinweni kwengqalasizinda yesitimela yesimanje. Lezi zitimela zihlanganisa izimiso zekhwalithi, ukuqina, ukunemba, kanye nokusebenzisana, konke okubalulekile ekuqinisekiseni ukusebenza okuphephile nokusebenza kahle kwamanethiwekhi ezitimela. Njengoba isidingo sezinhlelo zezitimela ezinokwethenjelwa nezisebenza kahle siqhubeka nokukhula, indima yezitimela zensimbi ezijwayelekile ze-BS ekwakheni ikusasa lokuthuthwa kwezitimela ayinakukhushulwa. Ngokugcina amazinga abekwe yi-British Standards Institution, imboni yezitimela ingaqhubeka nokuthembela emandleni aqinisekisiwe ezitimela zensimbi ezijwayelekile ze-BS ukusekela ukuhamba kwabantu nezimpahla ngokuzethemba nangokwethembeka.
Isikhathi sokuthunyelwe: Meyi-23-2024