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  • VIBRO HAMMER W/F

    VIBRO HAMMER F-Series (TILTING) VIBRO HAMMER TILTING. TIME-EFFICIENT WITH LESS LABOR. BULLSTER TILTING TYPE PILE DRIVER is the real time saver for pile driving jobs. With picking up a sheet pile in a horizontal position by 90-degree tilting function, the manual interference is reduced. In other words, almost nonstop piling operation is possible

  • Piling | Ground Engineering

    The Oscillator is an additional unit attached to the modern hydraulic piling rig that can generate up to 150 ton torque. Sizes range from 900mm to 1200mm (up to 9 000kN), with a maximum depth of 50m and can be installed up to an inclination of 1:6.

  • Pile Driving Part II: Pile Types and Guidelines

    Another composite pile is a shell pile head with a pipe pile bottom, while allows for the length and penetrating ability of the pipe with the low cost of a cast-in-place concrete head. Prestressed concrete piles that are combined with a H-pile stinger may also provide toe protection and penetration assistance for the pile.

  • Deep Foundation and Pile Techniques

    Friction DIPs are installed with an oversized conical grout point at the pile base. As the pile is driven, sand-cement grout is pumped through the grouting shank. The grout fills the hollow pile and exits through grout ports within the conical grouting point to fill the annular space created by driving the oversized cap.

  • Silent Piling Press

    However, as penetration of the pile group advances the skin friction between the reaction piles and the ground becomes the most significant factor in developing adequate total reaction. Once all piles in the group are advanced by the full stroke of all hydraulic cylinders, the entire pressing device retracts, ready to repeat the cycle.

  • CH 450

    Self-Erecting Hydraulic Piling Rig. 2 CH 450WPD (winch pulldown), LHR (low head room) versions and can be equipped with kelly bars with a maximum length of 12,5 to 13,5 m (CPD-WPD) and with different outerMax pile depth friction kelly CPD - WPD 56,6 - 62,9 m / 185' 8”

  • Pile Driving Basics, Common Problems, and Solutions

    Sometimes the pile driving hammer is the cause of problems. One example is a when the field stroke of a diesel hammer is less than 90% of the calculated stroke. In this case, ram friction may be the cause. If the observed blow count is less than calculated, soil resistance is likely lower than originally estimated.

  • American Piledriving Equipment Inc.

    All J&M hydraulic impact hammers have a patented hydraulic ram cycle control system that eliminates energy-robbing backpressure and ensures maximum energy to the pile. All J&M hammers are built with hard-chromed columns and self-lubricating nylon ram bearings to minimize friction and maximize transferred energy.

  • MODULE 4

    strong hydraulic winches and high pressure air bags there is a need for a knowledge of the basic concepts of leverage and gravity. It is the ability of the rescuer to make effective size upsn Friction may be the outside force acting on a object creating equilibrium. n The rescuer can change the amount of friction holding a