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  1. emilywalters

    Westergaard hydrodynamic pressure on bulkhead wall

    See attached link for proposed calculation of hydrodynamic pressure acting on a bulkhead wall that is retaining alternating strata of low and high permeability material, and with free water against the other face. I would like to know if anyone else has come across this kind of situation...
  2. emilywalters

    Double Retaining Wall System

    thread507-193368 It has been suggested that a temporary sheet pile wall is installed close in front of a permanent mass concrete wall. The sheet pile wall is to be tied back to the mass concrete wall at two locations and the space in between the two then back-filled. I am having difficulty...
  3. emilywalters

    Weep Hole - Coefficient of Discharge

    The problem: A large, mass concrete sea wall with free-draining backfill is subjected to overtopping and is designed to allow for 1.0 m tidal lag (hydrostatic head). The weep holes / drainage pipes therefore need to be capable of allowing a flow through the wall greater than the overtopping...
  4. emilywalters

    Placement of Mass Concrete to Control Thermal Cracking

    When placing concrete for a large mass concrete gravity retaining wall - what is the best placement method for control of thermal cracking? I typically deal with smaller reinforced slabs which I know benefit from a sequential bay construction rather than an alternate bay construction /...
  5. emilywalters

    Weff Effective Section Modulus for Class 4 CHS (Circular/Tubular Hollow Section) (Eurocodes)

    Could anyone direct me to the formula for the calculation of Weff (effective section modulus) for a CHS. I need this and the Aeff (effective area) to perform a verification check for local buckling in accordance with BS EN 1993-1 and BS EN 1995-1. I have the following equations but no idea where...
  6. emilywalters

    Combined Wall - Sheet Pile and CHS - Minimum Thickness of Sheet Pile?

    BS EN 1993-5:2007 Clause 5.5.2 (7) States: For sheet piles used as secondary elements, further verification may be omitted if all the following conditions are met: - wall thickness of the sheet piles: >or= 10mm; - ... For design of a harbour wall, does anyone know if this requires the...
  7. emilywalters

    How does ProSheet Check for failure

    I have performed a prosheet check on an anchored sheetpile bulkhead wall. I notice that the output gives me a maximum moment. It tells me that my safety factor is > 1.0 (which for my purposes is acceptable). However, my hand calculation outputs a smaller maximum moment, and yet this is greater...
  8. emilywalters

    Concrete column with groove / slot / key for precast panel

    I am attempting to design a concrete column which is an I section due to the fact that I wish to have two grooves running down either side of the column in order to slot a precast wall panel between columns. There is a horizontal pressure on each of the wall panels which transfers directly to...

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