trench shield

(redirected from Trench shields)

trench shield

[′trench ‚shēld]
(civil engineering)
A movable shoring system consisting of steel plates and braces that are bolted or welded together; used to support the walls of a trench while work is in progress.

trench box, trench shield

trench box
A heavily braced box of wood or steel which can be moved along a trench bottom as excavation and pipe laying

trench shield

A shoring system composed of steel plates and braces which are welded or bolted together; the shoring system supports the walls of a trench from the ground level down to the bottom of the trench; can be moved along as the work progresses.
Mentioned in ?
References in periodicals archive ?
Tenders are invited for (2) 8~ by 14~ trench shields and (2) 98" diameter by 96" tall manhole shields.
Based in Houston, TX, and with locations nationwide, NTS provides trench boxes, trench shields, slide rail systems, barrier walls, message boards and other related safety products, along with trench and traffic safety training.
The target is based in Michigan and is engaged in producing and leasing trench shields and shoring gear for underground construction.
For instance, trench shields are really nothing more than steel or aluminum boxes that can be placed into a trench to provide a safe environment for workers.
Contractors installing long joints of pipe have historically used steel trench shields due to the inherent productivity benefits of having a box long enough to install the joints while also being able to drag that box.
Contract Awarded for Supply and Delivery Trench Shields and Trench Shores for Manager Office of Jayawadanagama and Dehiwala, Mount Lavinia
Several working sites are shown to illustrate practical applications of trench shields and their effectiveness in reducing the amount of excavation and restoration required.
All GME trench shields are certified by a Professional Engineer to meet OSHA Standards 800.
Number needed: 2 WD loaders (120)--204; 4 WD loaders (380)--591; backhoe loaders (634)-909; bulldozers (102)-- 125; compactors (156)--254; dewatering pumps (236)--497; equipment trailers (415)--854; hydraulic excavators (136)--167; motor graders (163)--234; pipe/cable locators (235)--388; skid steer loaders (249)--308; stormwater pumps (202)--421; trenchers (70)--94; trench shields (114)--175; wheel loaders (117)--161.
But in those past instances, JD was able to use four-sided trench shields to shore the pits, but that was not an option this time.
For example, smaller and lighter trench shields have become more prevalent since the expansion of the mini-excavator's role in utility work.