15 The Proof Behind Why Short Term Mine Schedules Run Late July 4, 2024 Does P50 in equal P50 out? The answer is, ‘very rarely!’ This article directly follows on from Article 14 and so I would recommend you read that article first. Now I’ve tried to explain slippage previously in Article 9, although in that article […]
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14 Does a Mine Plan With P50 Inputs Lead To P50 Outputs? July 4, 2024 In discussing probabilistic planning with a colleague Martyn Bloss, he told me it had recently dawned on him that a plan with P50 input assumptions, does not result in a plan with P50 outputs. Which was not something that
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13 Why Is Mine Scheduling So Different To Project Scheduling?? July 4, 2024 I have a question and it is for the designers and creators of mine scheduling software. But first, let’s provide some context before that question! Have you ever used project management software such as Microsoft Project or Primavera? Well I’m actually a Civil Engineer and
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12 So Who Owns The Mine Plan? July 4, 2024 Let me start this article with a fundamental philosophy that can’t be ignored – “you can’t be held accountable for something you don’t control”. I wrote this article for a blog 9 years ago without ever posting it, I found it recently and decided it
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11 How Do You De-Risk Your Mine Plan? July 4, 2024 So how do you de-risk a mine plan? There’s probably an entire book in discussing how you de-risk all of the components of a mine plan, this article will discuss just one component. The primary risk inherent in a mine plan is that it is wrong,
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10 How Do You Incorporate Variability Into Your Mine Schedule?! July 4, 2024 I can’t be any more blunt than this, if you’re not incorporating variability into your mine scheduling, you’re not producing a good mine schedule – it’s as simple as that! I wouldn’t have written three articles stressing the impacts of variability on
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9 The Little Known Effect On Mine Production of Variability July 4, 2024 This is one of those idiosyncrasies in production that is entirely logical when you sit back and analyse it, but we’re typically too busy in the process of mine design and planning, to have the time to sit back and appreciate. Thanks
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8 Variability – The Impact Is Worse Than What You Think!! July 4, 2024 Have you ever noticed that when a mine schedule is wrong, it’s always wrong on the downside? In my previous article, I wrote about why mine scheduling doesn’t work, in this article I want to take that work and highlight why
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7 Mine Scheduling – Why It Doesn’t Work! July 4, 2024 Let’s start by zooming out and looking at the typical mine scheduling process used at most mine sites. We’re given a geological model to use for mining designs, from which we export quantities such as volumes, areas and thicknesses, and a range of qualities
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6 The Four R’s – What Does A Good Mine Schedule Look Like? July 4, 2024 I want to thank everyone who contributed to my question in a LinkedIn post and to provide a summary of what I took away from the 40 responses to my question, combined with my 30 years of experience in
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