Dredging Depth Research Articles

Design aids: anchored bulkheads in sand

Available design methods for anchored bulkheads do not allow easy optimization of design. To facilitate optimization, generalized parameters were developed to characterize the design situation and analytical results. Design aids were formulated as graphs and tables which show the relations among input data (anchor location, surcharge pressure, dredge depth, depth to water, and soil characteristics) and design output (maximum moment, anchor force, and embedment). Key words : bulkhead, anchored, design, dredged, sand.

TV has major role in pipe protection technology

In less than ten years the television camera has changed from being a “fascinating gadget” to establishing an important role in the pipe inspection and renovation business. Its other modern equivalent is possibly the laser beam which started life as an interesting straight beam of light which only took off in the construction industry when engineers exposed vast markets to the instrument designers by telling them just where, when and how they could use the pencil beam as a constant datum to replace the spasmodic sitings taken through optical instruments. The laser also added a vital component whereby the light beam had mechanical properties which could be effectively slaved to actuate recording and operational equipments. Today, the laser beam provides a constant datum on a building site, accurate alignment for a pipeline, automatic steering mechanisms for tunnel driving and automatic dredging depth in tidalwaters. Ere long, we will wonder how on earth we managed without it.