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Room and pillar mining

Room and pillar or pillar and stall is a mining system in which the mined material is extracted across a horizontal plane, creating horizontal arrays of rooms and pillars. To do this, "rooms" of ore are dug out while "pillars" of untouched material are left to support the roof – overburden.

History & Applications

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Explore the main themes, entities and connections around Room and pillar mining. Start with the topic map, then use the sections below for research and deeper semantic analysis.

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History

Surface miningUnited States GypsumMediapolis, IowaSalt minesGoderich, Ontario
8 related topics

Overview

MiningOreOverburdenStratumSubsidence
19 related topics

Process

BackfillTailings
2 related topics

Modern use

Longwall
1 related topics

Topics to explore

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Overview

Process

History

Modern use

Advanced semantic analysis

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Map overview Semantic statistics

Room and pillar mining

Nodes35
Edges34
Triples16
Avg. degree1.94
Density0.057143
Components1

How this topic connects Entity context

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Room and pillar mining

Top relations

related to history · 6
Room and pillar mining → Early, Europe, It, Room, United States, US
related to Disadvantages · 4
Room and pillar mining → Abandoned, Due, In, Significant
related to Advantages · 3
Room and pillar mining → At, Room, This

Important terminology Word statistics

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Important terminology

mining pillar room pillars mine used mines surface use ore coal roof rooms layout retreat subsidence due size deposits gypsum

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
faults require the regular pattern to be modifiedinstance ofand cut sequence.Mine layoutRoom and pillar mines are developed on a grid basis except where geological features0.80text
faults require the regular pattern to be modifiedinstance ofMine layoutRoom and pillar mines are developed on a grid basis except where geological features0.80text
longwall or surface mininginstance ofmore mechanized types of mining0.80text
Room and pillar miningrelated to AdvantagesRoom0.60section
Room and pillar miningrelated to AdvantagesAt0.60section
Room and pillar miningrelated to AdvantagesThis0.60section
Room and pillar miningrelated to DisadvantagesDue0.60section
Room and pillar miningrelated to DisadvantagesAbandoned0.60section
Room and pillar miningrelated to DisadvantagesIn0.60section
Room and pillar miningrelated to DisadvantagesSignificant0.60section
Room and pillar miningrelated to historyRoom0.60section
Room and pillar miningrelated to historyEarly0.60section

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    Min side: 3
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