Bar anka Hakowa Kai
Fa'idodi da Halaye kamar haka:
1. Ba a buƙatar tukwane, saboda ana iya huda sandunan anga cikin ƙasa maras kyau ba tare da buƙatar tukwane don tallafawa rijiyoyin burtsatse ba.
2. Saurin hakowa da shigarwa, saboda hakowa, shigarwa da grouting suna cikin aiki guda ɗaya.
3. Dukansu zaren igiya da zaren trapezoid suna da ƙarfi kuma suna da kyau don hakowa mai jujjuyawa-percussive da kuma tabbatar da babban matakin haɗin gwiwa tare da gout na borehole.
4. Ƙaƙwalwar maɗaukaki ba wai kawai yana aiki don flushing a lokacin hakowa ba, har ma don grouting bayan hakowa.
5. Zaren ci gaba da tabbatar da sanduna za a iya yanke su kuma a haɗa su a kowane wuri, ko tsawaita.
6. Daban-daban raƙuman anka suna samuwa don yanayi daban-daban na ƙasa.
R zaren anga bar ko kuma ake kira rock bolt, ƙasa ƙusa, wanda shi ne wani nau'i na threaded m mashaya, mashaya surface tare da igiya zaren bisa ga ISO 10208 & 1720. Mai da farko ƙirƙira shi a kan 1960S don warware low yi gudun a kan rikitarwa. ayyukan karkashin kasa, a zamanin yau;ya shahara sosai a duk faɗin duniya.
