Rashin ƙarfi na dutse

Shaƙewar dutse tarin manyan duwatsu ne ko tarkace da ke toshe shinge ko wucewa a cikin kogo ko nawa. Domin samun ci gaba ta hanyar kogo sau da yawa suna buƙatar yin shawarwari ko share shaƙewar dutse.

Ana iya yin shaƙewar dutse ta hanyar faɗuwar dutse, jibgar rafi, ko tarkacen ma'adinai. Saboda yanayin samuwar su dutsen dutse na iya zama mara ƙarfi kuma yana iya zama da wahala a kewaya da taswira saboda sarƙaƙƙiyarsu. 

Domin share wani dutse shake duwatsun da ke toshe hanyar na iya buƙatar cirewa, galibi suna buƙatar farfashewa da farko ko dai ta hanyar inji ko ta amfani da ƙaramin fashewa.  Tsarin Ƙungiyoyin Ƙungiyoyin Uku ya zama kogo mafi tsawo a Birtaniya lokacin da kogo suka yi nasarar kawar da hanya ta hanyar dutsen dutse na tsawon  don haɗa tsarin kogo guda biyu da aka sani, motsa jiki wanda ya ɗauki shekaru uku. 

Ƙunƙarar dutse na iya zama haɗari, saboda tsaunin da ba a daidaita ba na iya motsawa ba zato ba tsammani, mai yuwuwar murkushe ko kama koguna.  A cikin Mayu 1988, alal misali, an kashe wasu kogo uku a cikin wani dutsen dutse a Ease Gill Caverns .  A cikin kogo masu saurin ambaliya, kunkuntar hanya da karkatacciyar hanya ta cikin shaƙewar dutse na iya cika ruwa da sauri, hana ci gaba.  A cikin 1972, mambobi goma na Jami'ar Leeds Speleological Association sun makale a bayan wani hadadden dutsen dutse da ya mamaye Langcliffe Pot, wanda ya haifar da tafiya mai tsawon sa'o'i 44. 

 Manazarta