WebFort: A fully enclosed earthwork. Fortification: A man-made structure or portion of the natural terrain that made a defensive position stronger. Man-made fortifications were permanent … WebGlossary of seismological terms. Accelerograph: A type of seismograph used to measure ground acceleration as a function of time. ... Trench: Long, narrow arcuate depression in the seabed which results from the bending of the lithospheric plate as it descends into the mantle at a subduction zone.
A Glossary of Fortification Terms American Battlefield Trust
WebThe terms “soil-bentonite backfill” and “backfill” are used interchangeably in these specifications. Slurry Trench Specialist – An individual who has proven and successful experience in slurry trench construction evidenced by 5+ years of experience and who is knowledgeable of: 1 the proper methods employed to mix slurry and backfill, http://www.patriotpipelinesafety.com/wp-content/themes/vfs/pdfs/terminology-guide.pdf sunova koers
Sapping - Wikipedia
WebTrenches are a type of drainage system containing a dominant trough or channel-shaped body and are used for the rapid evacuation of surface liquids. Trench drains are the drains … WebTrench Drain Terminology and Alternatives . As you explore trench drain options, you may find certain terms used interchangeably. These include "trench drain," "channel drain," and "line drain." Each of these terms describes a drain system that removes water via a trough—or open trench—with removable grates. WebOSHA is focusing on reducing trenching and excavation hazards. Trench collapses, or cave-ins, pose the greatest risk to workers' lives. To prevent cave-ins: SLOPE or bench trench walls. SHORE trench walls with supports, or. SHIELD trench walls with trench boxes. Employers should also ensure there is a safe way to enter and exit the trench. sunova nz