ABSTRACT
HU combined sheet pile support system is a new type of foundation support system with traditional Larsen sheet pile and H-beam pile, there is no mature theoretical basis for the horizontal spacing of H-beam piles set behind the Larsen sheet pile wall. The formula for calculating the spacing of H-beam piles satisfies the static equilibrium condition and strength condition and is corroborated by MADIS GTS/NX 3D numerical simulation. Finally, an effective calculation method for the maximum value of horizontal spacing of H-beam piles in the HU combined sheet pile support system is obtained to guide the actual project.
