The biggest hydraulic hammer utilized at New Sakonnet River bridge, USA


    The replacement of the Sakonnet River Bridge, which carries nearly 40,000 cars per day and provides a critical transportation system link between Massachusetts and Rhode Island, is necessary to meet current highway design standards for shoulder width and structural capacity. A, 3,160-ft-long, 4-lane bridge will be built along an alignment located immediately south of the existing bridge, which will remain in operation during construction.

    Standing where the new bridge will soar overhead, State officer Carcieri and other officials marked a milestone in the long process to replace the 53-year-old bridge. Construction work under way and is projected to open to Route 24 traffic in spring 2012.

    It is extraordinarily important to towns on both sides of the span. The project will replace the old span with one directly to the south. The new bridge will include a 13-foot sidewalk for pedestrians and bicyclists, a passage underneath for boats more than twice as wide, and a boat ramp on the Tiverton side. More importantly for motorists, the new bridge would end a detour of up to 30 miles for trucks heavier than 18 tons. The weight restriction also kept fire trucks in Portsmouth and Tiverton from helping in emergencies in each others communities.
    It is the most expensive bridge project in state history and is projected to create up to 140 construction jobs and 330 indirect jobs, according to RIDOT. We need the jobs, Carcieri said. It will be built by Warwick, R.I., company Cardi Corp., which is also building the Providence River Bridge, which carries Interstate 195.

    Decorative features of the bridge have been preserved, however. LED lights — which according to renderings will be red, blue or green — will highlight the bridges piers in the river, and red lights will be attached vertically to light posts that line the center median. The new bridge will be 65 feet, the same height as the current span. The new bridge is expected to open in 2012.

    Community benefits ;
    * Improved public safety and seismic protection
    * Increased transportation capacity for existing and future traffic volumes
    * Added bicycle and pedestrian path, separated from vehicular traffic by safety rails
    * Replacement bridge alternative minimizes the cumulative impacts to the environment

    Assembling the BRUCE SGH-4719 Hydraulic Hammer in Vertical Position

    Because of its heavy weight and extraordinary length measured in total 86.6 ton (19100 lbs) and length, 13 meter (43 ft), assembling the SGH-4719 Hydraulic Hammer was progressed on site.
    Assembling it related to this job completed with a crane suspended type from the bottom in order.

    A four lump of Ram Segment are put together to fit with the Ram Assembly.
    Inside dia. 1854 of Long Pile Skirt for 72 inch Steel Casing is being assembled with Drive Cap.
    Finally, 2.9 meter of Cylinder Housing is being put together with Ram Housing.

    BRUCE SGH-4719 Hydraulic Hammer accomplished 72 inch Casing Pile job

    A major US contractor of this project used BRUCE SGH-4719 Hydraulic Hammer featured with 89.3 tom.m (876 kJ) of maximum potential energy,1.9 meter (6.23 feet) of maximum stroke and is powered by 1100 HP (820 kW) capacity of power pack model PQ-1200 for the first time since in the US bridge construction history, specializes in marine and general construction, marine equipment rental and sales to include ABS and inland barges.
    The Company has both the expertise and the equipment to provide the highest levels of services and products available
    in the marine industry.

    This project was located in Tiverton, Rhode Island, USA. This heavy and marine construction project involved pile driving of 72 inch diameter and 200 feet long (join 150 ft + 50 ft) steel casing piles for foundation support for bridge structures, with retaining the ground shake along the new Sakonnet River Bridge retaining more increased span on both side of the bridge for the future transportation volume. The entire pile driving operation was controlled by the smart and sophisticated Remote Control Box ensuring the electrical and hydraulic movements to be seen by operators visual check.

    BRUCE SGH-4719 will be the most powerful hydraulic hammer by its pile driving value.

    SGH-4719 Hammer Specification

    Hammer Weight

    86.6 ton (191000 lbs)

    Ram Weight

    47 ton (103617 lbs)

    Maximum Stroke

    1.9 meter (6.23 feet)

    Max. Potential Energy

    89.3 ton.m (876 KJ)

    Operating Pressure

    200 bar (2901 psi)

    Required Flow Rate

    1250 lpm (330 gpm)

    Power Source

    PQ-1200 Model with 1100HP

    BRUCE SGH-4719 hydraulic hammer was driven by the uniquely designed and built PQ-1200 model of Power Pack which equipped with increased cooling capacity of Diesel Engine for a constant stability of the job performance. PQ-1200 Power Pack with closed loop type and lockable sheet metal housing removal for easy component access, performed 1250 liter per minute of Hydraulic Flow Rate by the reliable Rexroth and Doosan Pump to drive adequately to 72 inch Steel Casing Pile.
    Powerful hydraulic Flow Rate enables Ram Stroke to do reciprocating motion as much as specified up to 1.9 meter movements of the hammer resulted in 89.3 ton m (876KJ) of Maximum Potential Energy.

    Power Pack PQ-1200  Specification

    Engine Type

    Doosan Engine

    Engine Power

    1100HP / 820kW @1800 rpm

    Engine Speed

    Low 900 rpm / High 1800 rpm

    Setting Pressure

    200 bar (2901 psi)

    Hyd. Oil Tank Capa.

    1800 liter (476 gal

    Fuel Oil Tank Capa.

    1000 liter (264 gal)

    Roll Over Cradles on the Barge for Hammer movement and Hammer Sitting

    At the first stage, BRUCE SGH-4719 Hydraulic Hammer is being safely laid down on the 2.8 meter length of Roll Over Cradle anchored on deck of the barge to go to construction site.
    To be continued, the head part of the hammer is laid down on the 2.2 meter of Roll Over Cradle.

    Biodegradable SHEVRON CLARITY Hydraulic Oil

    Energy Monitor system was utilized for BRUCE SGH-4719

    Before everything else, the most attractive merit of using this device account for enabling the field crew to take immediate action even far from the distance.
    IEA is essential for a driven pile foundation to estimate hammer energy efficiency at a real time basis of the driven pile working. it is also possible to adjust IEA system to fit adequate stroke height without checking the making line on the hammer.
    The IEA system will give the engineer the option of determining the penetration depth for a single pile and it assesses hammer energy capacity, cumulative blows, blow rates etc, at a real time data interpretation.
    When the engineer is present on site by the IEA system, it displays all the job data and results, therefore, a field crew can evaluate the data such as blows per step, blow rate and energy per step through it. It is an excellent way of protecting both pile materials and hammers.

    Advantages of IEA system

    Window touch screen of monitor display
    Up to date, robust, and easy to use.
    Design and construction of driven pile foundation.
    Actual Stroke Height adjustment without checking marking line on the hammer.
    Analysis of an average hammer energy on Penetration Depth by step.
    Blow rates at each steps and whole steps for a single pile.
    Unlimited job data storage for the next time working schedule.
    A total pilling time of a single pile for set up a construction plan.
    A real time basis of job data by selecting the operation mode.
    Easy conversion the Engineering Unit for customer convenience.
    Pile history management and a job proof to be presented.
    Job data printing out for an immediate interpretation on site.
    Compatible with Widows or Windows Vista and evaluation data at the office.

    Job Briefing

    Job Title

    Bridge Construction

    Materials of Piles

    Steel Casing

    Pile Length

    200 feet

    Pile Size

    72 inch