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SmugMug > keywords > collapse > F.D.N.Y. Apparatus > FDNY Collapse Rescue (1990)
SmugMug > keywords > collapse > F.D.N.Y. Apparatus > FDNY Collapse Rescue (1993)
SmugMug > keywords > collapse > Grand Canyon ... Boulder in the Abyss At 'The Abyss' overlook you can see deep into a side canyon of the Grand Canyon at fairly close range. You are standing on one of the harder layers of rock at the Grand Canyon, namely Kaibab limestone. It retains its natural creamy white color since no iron-bearing layer lies above it to 'bleed' iron oxide (rust) over its exposed surface. The Kaibab layer erodes by failure and collapse after being undercut by erosion of the softer Toroweap sandstone layer immediately beneath it. The result is that large, even huge boulders of white limestone come crashing and tumbling into the canyon. You can see such a boulder near the center of the picture... a white rectangular block deep in the crevass. Judging from the surrounding vegetation, it's about the size of a boxcar of a train.
SmugMug > keywords > collapse > F.D.N.Y. Apparatus > Collapse
SmugMug > keywords > collapse > Trench construction, safety: Caterpillar 3128 crawler mounted backhoe moves large pipe section/spool into trench to construct underground pipe. Workers standing in 8 ft deep trench have no support against sidewall collapse. Near worker is applying pipe joint lubrication in preparation for inserting pipe spool/segment into previously placed pipe. Worker safety and the law require: (1) Trenches 5 feet (1.5 meters) deep or greater must be supported or sloped back unless the excavation is made entirely in stable rock, and this soil is not stable rock. (2) Workers must have easy, close exit from trenches, which pipes crossing this trench prevent. Michigan 2006
SmugMug > keywords > collapse > Trench construction, safety: Caterpillar 3128 crawler mounted backhoe moves large pipe section/spool into trench to construct underground pipe. Workers standing in 8 ft deep trench have no support against sidewall collapse. Worker safety and the law require: (1) Trenches 5 feet (1.5 meters) deep or greater must be supported or sloped back unless the excavation is made entirely in stable rock, and this soil is not stable rock. (2) Workers must have easy, close exit from trenches, which pipes crossing this trench prevent. Michigan 2006
SmugMug > keywords > collapse > Trench construction, safety: Caterpillar 3128 crawler mounted backhoe moves large pipe section/spool into trench to construct underground pipe. Workers standing in 8 ft deep trench have no support against sidewall collapse. Near worker is applying pipe joint lubrication in preparation for inserting next pipe spool/segment. Worker safety and the law require: (1) Trenches 5 feet (1.5 meters) deep or greater must be supported or sloped back unless the excavation is made entirely in stable rock, and this soil is not stable rock. (2) Workers must have easy, close exit from trenches, which pipes crossing this trench prevent. Michigan 2006
FDNY Collapse Rescue (1990)
F.D.N.Y. Apparatus > FDNY Collapse Rescue (1990)
FDNY Collapse Rescue (1990)
Photo by: BTFirephotos • see photo in gallery
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