BS 6349-2 PDF
PORT WORKS DESIGN MANUAL PART 2Guide to Design of Piers and Dolphins Civil Engineering Office Civil Engineering Department The Government. Find the most up-to-date version of BS at Engineering Buy BS Maritime works. Code of practice for the design of quay walls, jetties and dolphins from SAI Global.
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BS Maritime works. Code of practice for the design of quay walls, jetties and dolphins
The joints should be designed to take account of tolerances in casting and placing and differential settlement. Modern general cargo berths with transit sheds on the berth require a distance between berth face and shed of 20 m to 50 m. Code of practice for 6349-22 design of quay walls, jetties and dolphins. A suitable means of measuring tidal lag is to install a series of piezometers.
Where the capping or deck projects well in front of the wall, the waling may be placed outside and the tie-bolts can be omitted. NOTE Examples of persistent design situations are: Distribution of the action along the anchorage may be achieved using diagonal tie-backs arranged in opposing pairs.
Blocks are placed vertically above each other. They can also be used to form a temporary cut-off or cofferdam for the construction of an in-situ concrete 649-2 wall. Allowance should be made in service runs for differential movement of sections of a structure or between the structure and the ill, by the provision of articulated or sliding joints. Care should be taken, in handling tie rods, not to damage them by impact or bending.
B achieve maximum relief of lateral pressures on the wall, the width of the platform should be such that its rear edge intersects the failure plane of the soil, and the platform should be built as low as practicable. They can be built in most types of soil and may be toed or dowelled into solid rock, but are generally unsuitable where lowing or artesian water is present during construction. NOTE 2 Guidance on earthing and bonding, and on ire-ighting equipment, at marine oil terminals is given in the International safety guide for oil tankers and terminals .
This should extend outward at least 1. Some types of quay wall allow drainage through the wall at open joints. Where the construction sequence involves laying the bed well in advance of the wall, it might be necessary to remove any fresh silt layer by suction cleaning immediately prior to placing the wall units.
NOTE Detailed guidance on seismic-resistant design is given in Recommendations of the Committee for B Structures , Earthquake-resistant design  and Recommended practice for planning, designing and constructing ixed offshore platforms [13—14]. Materials should be chosen on the basis of their availability, quality and suitability for the particular project. An open-piled structure can be either rigid or lexible.
It vs usual to apply a small pre-stress to tie rods to limit wall movement. The driving of steel sheet and timber piles should be in accordance with BS EN This is of particular importance when designing container terminals. Care should be taken to provide appropriately sealed joints to prevent loss of material.
The most commonly used interlocking pile sections for steel embedded retaining walls are the U- and Z- types.
Dolphins should be provided where necessary, e. This shore-based ire bss system may be augmented by providing ire-ighting equipment on tugs.
The temporary support should be 634-92 only after the 634-2 has gained enough strength to stand unsupported. The piles may be of steel or concrete, either precast or in situ: Measures which may be taken to avoid settlement effects in tie rods include the provision of 66349-2 couplings and ixings in the rods, laying the rods to an upward curve, laying the rods on the invert of large diameter ducts, bss supporting the rods or the 63499-2 ducts on piles.
A considerable length of wall is needed to achieve the necessary resistance. NOTE 1 To reduce the amount of dredging needed at the time of initial construction, it is common to design a berth for a greater depth of water than is initially required. The embedded retaining wall may be incorporated into the permanent structure.
Fill materials should conform to 4. In addition, differential delections of crossheads supporting such pipes should be limited so that any additional stresses induced in the pipeline arising from the delections, when combined with the effects of other actions, are limited to values that the pipeline material can support without rupture.
Passenger and naval berths will also have different apron width requirements. Guidance on the design of tendons is given in BS EN Abrupt changes in proile might create suficient disturbance to affect the structure and possibly navigation in the vicinity.
At in-situ concrete walls, all soil replacement at the wall should be done in advance of wall construction. Appropriate 63449-2 should be provided to transfer horizontal actions across movement joints and to link the individual units of the wall. The availability of the plant should be taken into account when a design includes planned maintenance.