pit slope mining


Ghanaian Radar Engineer; Installation on a mine in West ...

A quick trip to install a new IDS Georadar Equipment for pit slope monitoring in a West African Mine. Follow and like and share so you and others can see eve...

Get More

Managing and Analyzing Overall Pit Slopes

mizing the impact of progressive slope failure on mining. Regressive slope failures often occur as a result of rock mass yielding near the toe of the slope. In the United States, case histo­ ries of regressive slope failures in open-pit mining have been doc­ umented in the literature since the early 1950s (Bisbee, Arizona, and Butte, Montana).

Get More

Slope Design and Implementation in Open Pit Mines ...

Jan 01, 2012· Keywords: slope stability, slope design, engineering geology, fault, open pit mines, SOMAIR uranium mine, OCP phosphate mine 1. Introduction Slopes of mines and quarries, some of which may reach several hundred meters deep, must be regarded as "geotechnical works" in the sense that we speak of mine works or civil engineering works.

Get More

Slope | mining | Britannica

Other articles where Slope is discussed: mining: Pit geometry: …a pit have a certain slope determined by the strength of the rock mass and other factors. The stability of these walls, and even of individual benches and groups of benches, is very important—particularly as the pit gets deeper. Increasing the pit slope angle by only a few degrees can…

Get More

Pit Wall Angles and Bench Width – How Do They Relate?

May 10, 2015· The wall of an open pit wall will consist of a series of stacked benches. Geotechnical engineers will normally provide the pit slope design criteria based on the inter-ramp angle ("IRA") for various sectors around the pit. The IRA represents the toe-to-toe slope angle, as shown in the diagram below. The inter-ramp angle can be… Continue reading...

Get More

Development of a mine dewatering and pit slope ...

Development of a mine dewatering and pit slope depressurisation review process E Reano Piteau Associates Peru S.A.C., Peru G Beale Piteau Associates UK Ltd, UK J Dowling Piteau Associates, USA LC Tejada Freeport-McMoRan Inc., USA M Lacey Freeport-McMoRan Inc., USA H Hazwezwe Freeport-McMoRan Inc., USA Abstract

Get More

SLOPE STABILITY ANALYSIS FOR OPEN PITS 1

Analyses of a deep wall in an open pit mine in the Peruvian Andes are used to compare limit equilibrium methods (SLIDE) with distinct element methods (UDEC) when the stability is controlled by rock mass strength. The pit wall has an overall slope angle of 37º and a …

Get More

Modeling variable pit slopes in the open pit production ...

mining a given block. Traditionally, the slope constraints have been modeled with cone templates representing the required wall slopes of the open pit mine. The overall pit slopes constructed by these templates are a function of the width and height of the geological block model. Therefore, the overall slopes are fixed in one bearing.

Get More

Pit Slope Stability Monitoring Plan

Pit Slope Stability Monitoring Plan, Rev. 3 Page 2 2.0 PLAN DETAILS The details associated with this Plan are listed below. 2.1 MINE PLANNING Open pit design not only takes ore grade into consideration but also the strength and competency of the materials making up the pit walls, including structural features that may create zones of weakness.

Get More

THE TRANSITION FROM OPEN PIT TO UNDERGROUND …

The South African Institute of Mining and Metallurgy International Symposium on Stability of Rock Slopes in Open Pit Mining and Civil Engineering R. K. Brummer, H. Li & A. Moss Page 411 THE TRANSITION FROM OPEN PIT TO UNDERGROUND MINING: AN UNUSUAL SLOPE FAILURE MECHANISM AT PALABORA Richard K. Brummer*, Hao Li* & Allan Moss♦

Get More

Cost-Benefit Design of Open Pit Slopes

the slope instability cost from the benefits has a maximum. The slope angle at which this maximum occurs is the optimum angle as mining at either a flatter or steeper slope angle will result in less benefit. Since the life of a mine can be 15 to 20 years or more,

Get More

CONSIDERATIONS IN THE OPTIMISATION OF BENCH FACE …

The South African Institute of Mining and Metallurgy International Symposium on Stability of Rock Slopes in Open Pit Mining and Civil Engineering Ian de Bruyn _____ Page 558 height, bench face angle and berm width can be used in the slope design. All geometrical pit slope elements referred to here are illustrated in Figure 1. The

Get More

Pit Slope Design Process - Home - LOP

A Brief History of Open Pit Slope Design Slope design is an integral part of the engineering of an open pit, regardless of its size. Most cases the slope angles are a key component dictating the economic viability of a proposed or current mining project. This has resulted in open pit mining operating

Get More

Home - LOP

Our Mission The Large Open Pit (LOP) project is an international research and technology transfer project focused on the stability of large slopes associated with open pit mines. It is an industry-sponsored and funded project that was initiated in 2005. The LOP's sponsors have comprised a diverse group of multinational mining companies,

Get More

DETERMINATION OF OPTIMUM OVERALL SLOPE ANGLE …

the overall slope angles and corresponding mining depth. The developed chart can also be applicable for the iron ore mines in Turkey showing the same geotechnical characteristics with Bizmişen region. Keywords: Open-pit Mining, Rock Slope Stability, Overall Slope Angle, Limit

Get More