Land mine - Wikipedia
WEBA land mine, or landmine, is an explosive weapon concealed under or camouflaged on the ground, and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. [1]
Current Types of U.S. Landmines - The National Academies Press
WEBThis appendix provides descriptions of currently available antipersonnel landmines (APL) and some antitank (AT) mines that are part of mixed systems (see Table C-1).
Fully mechanised mixed mining technology involving solid …
WEBFeb 18, 2016 · In this condition, this paper introduces an innovative mining method based on consolidated backfill mining technology, namely, mixed mining technology involving solid backfilling and caving methods, and presents its underlying technical principles.
Mapping open-pit mining area in complex mining and mixed …
WEBMay 1, 2024 · The area in Fig. 5 (b) is around the city of Yangquan, where a large number of open-pit mines are mixed with urban, rural, and underground mines, the classification results show the distribution of reclaimed and active mines in this area.
Green coal mining technique integrating mining-dressing-gas …
WEBJan 1, 2017 · The technique integrates mining of the protective seam in the rock stratum, UDCG method, gas drainage system, and mixed mining method combining solid backfilling and conventional, fully mechanized mining together.
How do we extract minerals? | U.S. Geological Survey - USGS.gov
WEBThe primary methods used to extract minerals from the ground are: Underground mining. Surface (open pit) mining. Placer mining. The location and shape of the deposit, strength of the rock, ore grade, mining costs, and current market price of the commodity are some of the determining factors for selecting which mining method to use.
What are the main methods of mining? | American Geosciences …
WEBPlacer mining is used to sift out valuable metals from sediments in river channels, beach sands, or other environments. There are four main mining methods: underground, open surface (pit), placer, and in-situ mining.
Double verification and quantitative traceability: A solution for mixed …
WEBFeb 1, 2024 · The new approach is especially useful for mixed water sources and in mines with complicated hydrogeological conditions.
Double verification and quantitative traceability: A solution for mixed …
WEBFeb 1, 2024 · Double verification and quantitative traceability: A solution for mixed mine water sources. Y. Zeng, Aoshuang Mei, +3 authors. Zhaolai Hua. Published in Journal of Hydrology 1 February 2024. Environmental Science, Engineering. View via Publisher. Save to Library. Create Alert.
What are the 3 types of landmines? - Answers
WEBJun 15, 2024 · Best Answer. The three main types of landmines are anti-personnel mines, anti-tank mines, and mixed mines that combine both anti-personnel and anti-tank features. Anti-personnel mines are...