In this paper, continuous n-heptane spill fire experiments were conducted in a rectangular trench covered with water.
These are: (1) light-weight embankments, (2) imperfect trenches, (3) slot-trench cover systems and (4) post and beam cover systems.
Also highlighted is research recently performed to develop a slot-trench cover system designed to protect buried, high-strength steel pipelines from potential rupture resulting from vertical permanent ground deformation (e.g., tectonic faulting).
The results of the evaluation program show that EPS geofoam blocks can be used as a light-weight, slot-trench cover system in urban roadways to protect buried high-strength steel pipelines threatened by potential rupture resulting from faulting, or other sources of permanent ground deformation.
Regarding "From the Classroom to the Trenches" (Cover article, Nov. 5): Our organization represented parents in one of the nation's first cases establishing the right to special education for students with retardation, and continues to represent parents and families in New Jersey, Pennsylvania and across the nation in special-education matters.
Fresh dung from a lactating cow is mixed with rock phosphate and crushed eggshell, then packed into shallow brick trenches, covered with sacking and left for 30 days.
Then, if our bodies are still unclaimed by relatives or friends, we're ferried for one last ride across the East River to the potter's field at Hart Island, where inmates from Rikers Island on burial detail stack our plywood coffins in a long trench and cover us with dirt.
It is unconformably overlain by trench slope cover sediments of the Kagamigaura Formation (Yamamoto et al. 2012) and by younger trench-fill sediments of the Chikura Group in the south of the Boso Peninsula (Kawakami and Shishikura 2006).
They had built concrete walls and dug trenches to cover their tracks".
The trench is covered by a debris of coarse, fragmented rocks resulting from gravitational sliding and slumping.
