Per OSHA, Heaving or Squeezing is caused by the downward pressure created by the weight of adjoining soil. This pressure causes a bulge in the bottom of the cut. Heaving and squeezing can occur even when shoring or shielding has been properly installed. For additional information, see OSHA Technical Manual (OTM) Section V: Chapter 2 (Definitions). […]
Excavation & Trenching Safety
Read posts about Excavation & Trenching Safety from Ron Meyer & Associates Excavating, West Michigan excavation contractors.
What is Surcharge in Trenching/Excavation?
Per OSHA, Surcharge means an excessive vertical load or weight caused by spoil, overburden, vehicles, equipment, or activities that may affect trench stability. For additional information, see OSHA Technical Manual (OTM) Section V: Chapter 2 (Definitions). At Ron Meyer & Associate Excavating, Inc, we’ve been providing underground and commercial construction to private and commercial businesses for […]
What are Underground Installations in Trenching/Excavation?
Per OSHA, Underground Installations include, but are not limited to: Utilities (sewer, telephone, fuel, electric, water, and other product lines) Tunnels Shafts Vaults Foundations Other underground fixtures or equipment that may be encountered during excavation or trenching work. For additional information, see OSHA Technical Manual (OTM) Section V: Chapter 2 (Definitions). At Ron Meyer & Associate […]
What is a Trench?
Per OSHA, A Trench is a narrow excavation (in relation to its length) made below the surface of the ground. An Excavation is any man-made cut, cavity, trench, or depression in an earth surface that is formed by earth removal In general, the depth of a trench is greater than its width, and the width (measured at […]
What is Unconfined Compressive Strength in Trenching/Excavation?
Per OSHA, Unconfined Compressive Strength is the load per unit area at which soil will fail in compression. This measure can be determined by laboratory testing, or it can be estimated in the field using a pocket penetrometer, by thumb penetration tests, or by other methods. For additional information, see OSHA Technical Manual (OTM) Section V: […]
What are Subsurface Encumbrances in Trenching/Excavation?
Per OSHA, Subsurface Encumbrances include underground utilities, foundations, streams, water tables, transformer vaults, and geological anomalies. For additional information, see OSHA Technical Manual (OTM) Section V: Chapter 2 (Definitions). At Ron Meyer & Associate Excavating, Inc, we’ve been providing underground and commercial construction to private and commercial businesses for 39 years. As the general contractor or […]
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