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Hot Rolled Sheet Piling - Z Sections AZ Series The essential characteristics of Z-sections are the continuous form of the web and the location of the interlock symmetrically on each side of the neutral axis. Both aspects have a positive influence on the section modulus. The AZ series, a section with extraordinary characteristics and the proven qualities of the Larssen interlock, has the following advantages: Extremely competitive section-modulus-to-mass-ratio Increased inertia for reduced deflection Large width, resulting in good installation performance Good corrosion resistance, the steel being thickest at the critical corrosion points. The biggest Z sheet pile in the AZ series with section modulus of 5015 cm3/m is the heaviest Z section sheet pile in the world, produced by ArcelorMittal.Hot Rolled Sheet Piling - U Sections

The advantages of U-sections are multiple: A wide range of sections forming several series with various geometrical characteristics, allowing a technically and economically optimum choice for each specific project. Combination of great profile depth with large flange thickness giving excellent statical properties The symmetrical form of the single element has made these sheets piles particularly convenient for re-use The possibility of assembling and crimping the piles into pairs in the mill improves installation quality and performance. Easy fixing of tie-rods and swiveling attachments, even under water. Good corrosion resistance, the steel being thickest at the critical corrosion points.

Cold Formed Sheet Piling - Omega Sections The advantages of O series are as follows: An innovative section to ease sheet piling installation that is adjacent to existing building. An innovative manufacturing process allows changing of profile width that provide a wide range of omega sections. 0Higher width reduces number of interlock per meter run of wall and directly improve water tightness control of wall.The O series was designed with optimized section for the following applications: Canalization Permeability cut off wall Riverbank structural protection

Foundation Pipes Driven by the ambition to answer alltypes of foundations requirements, Oriental Sheet Piling has built a new modern and automated pipe plant. Located at a strategic position, OSP local processing center comprises the following facilities in the same area:Fully automated spiral welded pipe machine Coating andsand blasting facilities Storage area Crane handling long full-length pipes and waterfront facilitiesAll these facilities provide flexibility needed offering tailor-made and cost competitive solution according to our customer's specific requirements in foundations. After production, every single pipe is subjected to strict and rigorous quality controls ensuring all finished goods are reaching international standards and references.

Complying with out mission statement, OSP pipe offer has been enriched by extra added value services than existing ones: Piles shoes fabrication and splicing Attachements and clutches welding Sand blasting and coating Third party inspection and quality assurance services Oriental Sheet Piling comprehensive and cost effective pipe solutions are significantly decreasing time of construction programs and as a consequence lowering overall project costing for the benefit of our customers.

Tie Rods Sheet piling wall can be optimized significantly with effective anchorage tie back system thus reducing project cost. Tie rod has been found to be effective load transfer for anchoring sheet piling works for various types of connections and retaining wall layout. Parallel to our business philosophy, we provide complete tie back system for full force transfer to all components and connections. Thus ensuring the following Quality is critical: Quality Tie Rod scheme Quality Product Quality Execution To meet various tie back requirement in heavy wharf structures, jetty, double skin wall and excavation, we are able to provide the following types of tie rod: Upset end forged bar Continuous thread bar

Struts Temporary cofferdam using steel sheet pile and strutting system has made many underground construction feasible even for complex layout, deep excavations and difficult working environment. We supply the following strutting system for complete underground foundation requirements: Structural beam with bolt & nut and preload jacking system for fast installation and ease of dismantling. Pipes for long span strutting element. Beam element with decking system to support heavy construction vehicle load. We can also provide the following services to further optimize strutting system: Stocking of struts. Rental & leasing of struts material & component Technical support, retaining analysis & structural calculation Fabrication services for proper connection detailing Working layout, construction details, execution drawing and method of statement to ensure proper execution.

Fast, Low-Cost Method of Attaching Formwork to Steel Structures

Modified 3/4" arc weld stud with swiveling loop coil tie Useful for one-sided walls against sheet piling and other structures 4500 lbs Max. Safe Working Load (see load tables)

Steel Dog Coil-StudsTM provide low-cost attachment points for coil hardware-based form ties onto steel structures. Typical application: one-sided forming against soldier piles or sheet piling.

FEATURES: Extremely fast installation with standard stud welding equipment Approximately 1/4 the cost of angle weld bracket Swivel loop coil tie end to accommodate misalignment between stud placement and formwork tie location. Accepts standard coil rod or -13 NC rod (SCS-4NC) Can be manually welded to head

INSTALLATION:Base metal surface must be clean and dry. Remove rust, paint, oil, etc. Ferrules must be dry Do not weld if base metal temperature is below 0 deg F Ensure good ground connection to base metal

WELDINGConsult welding equipment manufacturer's literature for recommended weld settings for 3/4" steel studs welded to steel Adjust stud gun to accommodate Coil-Stud so that swivel coil loop does not impede free and full movement of stud during welding Studs must be welded perpendicular to surface only

INSPECTIONThere should be a full 360 deg weld fillet around stud. Reject any studs with a partial weld or undercut. TESTINGAfter setting up welder, test at least two Coil-StudsTM before further welding. Bend at least 30 degrees from initial position with hammer or bending tool. Repeat bend test every 1/2 hour, or after any change in weld settings, operator, or any other welding conditions. 11

DIAPHRAGM WALL CONSTRUCTION

Diaphragm wall excavation

Diaphragm wall reinforcement & concreteing

Grab used for excavation

Reinforcement

The finished wall after excavation

A retaining wall is a structure that holds back soil or rock from a building, structure or area. Retaining walls prevent downslope movement or erosion and provide support for vertical or near-vertical grade changes. Cofferdams and bulkheads, structures that hold back water, are sometimes also considered retaining walls. Retaining walls are generally made of masonry, stone, brick, concrete, vinyl, steel or timber. Once popular as an inexpensive retaining material, railroad ties have fallen out of favor due to environmental concerns. Segmental retaining walls have gained favor over poured-in-place concrete walls or treated-timber walls. They are more economical, easier to install and more environmentally sound. The most important consideration in proper design and installation of retaining walls is that the retained material is attempting to move forward and downslope due to gravity. This creates lateral earth pressure behind the wall which depends on the angle of internal friction (phi) and the cohesive strength (c) of the retained material, as well as the direction and magnitude of movement the retaining structure undergoes. Lateral earth pressures are typically smallest at the top of the wall and increase toward the bottom. Earth pressures will push the wall forward or overturn it if not properly addressed. Also, any groundwater behind the wall that is not dissipated by a drainage system causes an additional horizontal hydrostatic pressure on the wall. As an example, the International Building Code requires retaining walls to be designed to ensure stability against overturning, sliding, excessive foundation pressure and water uplift; and that they be designed for a safety factor of 1.5 against lateral sliding and overturning.Retaining wall

Gravity walls:-Gravity walls depend on the weight of their mass (stone, concrete or other heavy material) to resist pressures from behind and will often have a slight 'batter' setback, to improve stability by leaning back into the retained soil. For short landscaping walls, they are often made from mortar less stone or segmental concrete units (masonry units). Dry-stacked gravity walls are somewhat flexible and do not require a rigid footing in frost areas.Today, taller retaining walls are increasingly built as composite gravity walls such as: geosynthetic or with precast facing; gabions (stacked steel wire baskets filled with rocks); crib walls (cells built up log cabin style from precast concrete or timber and filled with soil); or soil-nailed walls (soil reinforced in place with steel and concrete rods).Various types of retaining wallsSheet pilingSheet pile walls are usually used in soft soils and tight spaces. Sheet pile walls are made out of steel, vinyl or wood planks which are driven into the ground.For a quick estimate the material is usually driven 1/3 above ground, 2/3 below ground, but this may be altered depending on the environment. Taller sheet pile walls will need a tie-back anchor, or "dead-man" placed in the soil a distance behind the face of the wall, that is tied to the wall, usually by a cable or a rod. Anchors are placed behind the potential failure plane in the soil.It is very important to have proper drainage behind the wall as it is critical to the performance of retaining walls. Drainage materials will reduce or eliminate the hydrostatic pressure and will therefore greatly improve the stability of the material behind the wall, assuming that this is not a retaining wall for water.Cantilevered Prior to the introduction of modern reinforced-soil gravity walls, cantilevered walls were the most common type of taller retaining wall. Cantilevered walls are made from a relatively thin stem of steel-reinforced, cast-in-place concrete or mortared masonry (often in the shape of an inverted T). These walls cantilever loads (like a beam) to a large, structural footing, converting horizontal pressures from behind the wall to vertical pressures on the ground below. Sometimes cantilevered walls are buttressed on the front, or include a counter fort on the back, to improve their strength resisting high loads. Buttresses are short wing walls at right angles to the main trend of the wall. These walls require rigid concrete footings below seasonal frost depth. This type of wall uses much less material than a traditional gravity wallAnchored This version of wall uses cables or other stays anchored in the rock or soil behind it. Usually driven into the material with boring, anchors are then expanded at the end of the cable, either by mechanical means or often by injecting pressurized concrete, which expands to form a bulb in the soil. Technically complex, this method is very useful where high loads are expected, or where the wall itself has to be slender and would otherwise be too weak.Soil nailing Soil nailing is a technique in which soil slopes, excavations or retaining walls are reinforced by the insertion of relatively slender elements - normally steel reinforcing bars. The bars are usually installed into a pre-drilled hole and then grouted into place or drilled and grouted simultaneously. They are usually installed untensioned at a slight downward inclination. A rigid or flexible facing (often sprayed concrete) or isolated soil nail heads may be used at the surface.

Soil-strengthenedA number of systems exist that do not simply consist of the wall itself, but reduce the earth pressure acting on the wall itself. These are usually used in combination with one of the other wall types, though some may only use it as facing (i.e. for visual purposes).Gabion meshesThis type of soil strengthening, often also used without an outside wall, consists of wire mesh 'boxes' into which roughly cut stone or other material is filled. The mesh cages reduce some internal movement/forces, and also reduce erosive forces.Mechanical stabilization Mechanically stabilized earth, also called MSE, is soil constructed with artificial reinforcing via layered horizontal mats (geosynthetic) fixed at their ends. These mats provide added internal shear resistance beyond that of simple gravity wall structures. Other options include steel straps, also layered. This type of soil strengthening usually needs outer facing walls (S.R.W.'s - Segmental Retaining Walls) to affix the layers to and vice versa. The wall face is often of precast concrete units that can tolerate some differential movement. The reinforced soil's mass, along with the facing, then acts as an improved gravity wall. The reinforced mass must be built large enough to retain the pressures from the soil behind it. Gravity walls usually must be a minimum of 50 to 60 percent as deep or thick as the height of the wall, and may have to be larger if there is a slope or surcharge on the wall.