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A blast resistant mine is a
A blast resistant mine is a landmine
A land mine, or landmine, is an explosive weapon often concealed under or camouflaged on the ground, and designed to destroy or disable enemy targets as they pass over or near it. Land mines are divided into two types: anti-tank mines, whi ...
(intended for anti-tank or anti-personnel purposes) with a fuze
In military munitions, a fuze (sometimes fuse) is the part of the device that initiates its function. In some applications, such as torpedoes, a fuze may be identified by function as the exploder. The relative complexity of even the earliest fu ...
which is designed to be insensitive to the shock wave
In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance that moves faster than the local speed of sound in the medium. Like an ordinary wave, a shock wave carries energy and can propagate through a me ...
from a nearby explosion. This feature makes it difficult or impossible to clear such mines using explosive minefield breaching techniques. As a result, the process of clearing minefields is slower and more complex. Blast resistance can be achieved in a number of ways.
Pressure blast resistant fuzes
In pressurefuze
In military munitions, a fuze (sometimes fuse) is the part of the device that initiates its function. In some applications, such as torpedoes, a fuze may be identified by function as the exploder. The relative complexity of even the earliest fu ...
d landmines this is achieved by having the fuze react differently based on the duration of the pressure impulse. For example, a number of Italian landmines like the VS-1.6 use an air system, where air is forced through a small hole into an air bladder, the inflation of which rotates a locking collar and releases the striker into the detonator. The sudden impulse from impact or explosion does not have sufficient duration to inflate the bladder and rotate the locking collar, whereas steady pressure from a vehicle's wheel or track does.
A second technique involves the use of tilt or pull, rather than downward pressure to trigger the mine. An example of a mine using this technique is the Valmara 69.
A third technique involves the use of a pressure plate with a small surface area yet broad ground coverage like the M1 mine. This is less effective than the first two techniques, but much simpler to implement.
Non-pressure blast resistant fuzes
The use of electronic fuzes allows mines to intelligently ignore blast shock waves, by either being designed to ignore the characteristics of a blast shock wave or by using the characteristic magnetic field of the target to detonate the mine. Additionally seismic fuzes can be used to detonate mines, based on the characteristic sounds of footsteps or vehicles.See also
*Minimum metal mine
A minimum metal mine is a land mine that is designed to use the smallest amount of metal possible in its construction. Typically, the only metal components are located inside the fuze mechanism which triggers detonation. Both minimum metal anti-ta ...
*Anti-handling device
An anti-handling device is an attachment to or an integral part of a landmine or other munition such as some fuze types found in general-purpose air-dropped bombs, cluster bombs and sea mines. It is designed to prevent tampering or disabling, ...
* VS-50 mine - blast resistant anti-personnel mine
* TS-50 mine - blast resistant anti-personnel mine
*SB-33 mine The SB-33 is a small Italian minimum metal blast type anti-personnel mine formerly manufactured by '' Misar'', that entered service in 1977. The SB-33 can be emplaced by hand or scattered using the helicopter mounted SY-AT system.
The body of the ...
- blast resistant anti-personnel mine
* SB-81 mine - blast resistant anti-tank mine
* TC/3.6 and TC/6 mines - blast resistant anti-tank mine
References
Land mines {{Landmine-stub