{"product_id":"large-in-situ-direct-shear-tests-on-mine-rock-piles-von-kwaku-boakye","title":"LARGE IN SITU DIRECT SHEAR TESTS ON MINE ROCK PILES","description":"\u003cp\u003eThe purpose of this research study is to perform  in  situ and laboratory direct shear tests to evaluate  the shear strength parameters of rock piles  deposited during surface mining operation at the  Chevron Mining Inc. (formerly Molycorp Inc.) located  in Taos County, New Mexico and evaluate the effect  of weathering on these shear strength parameters.  Weathering of rock piles is an important process  that can change the shear strength (cohesion and  friction angle) of these materials. A modified in  situ direct shear test apparatus was designed and  used to evaluate in situ cohesion and friction angle  of rock pile materials. Two test apparatuses were  constructed; a 30 cm square metal shear box and a 60  cm square metal shear box. The main difference  between the in situ shear box and its conventional  laboratory equivalent is that the in situ shear box  consists of a single box that confines an excavated  block of rock pile material. The lower half of the  block consists of the rock pile material underneath  the shear plane that is a semi-infinite domain. This  book gives an in-depth describtion of the device,  test performed and results analyses.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838399676\"\u003e\u003ch3\u003eDifferent Geotechnical Testing Technique\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838399676","offer_id":39469151846493,"sku":"9783838399676","price":79.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/434e349c-8f37-43bd-a696-d767c82cc3ed.jpg?v=1768976322","url":"https:\/\/shop.autorenwelt.de\/products\/large-in-situ-direct-shear-tests-on-mine-rock-piles-von-kwaku-boakye","provider":"Autorenwelt Shop","version":"1.0","type":"link"}