INSTITUT KEMAHIRAN BELIA NEGARA BANTING, SELANGOR – MALAYSIA VERTICAL DRAINS Category: Infrastructure: Road Client: Public Works Dept Malaysia Engineer: Jurutera Konsult Maju Contractor: Pembinaan Megah Ikhlas Sdn Bhd Area / Quantity: 121,400 m2 MY-PVD-LPT2 PACKAGE 12-REV.0 Page 1 PROJECT DESCRIPTION An Institute with buildings up to 5-storey high were to be constructed over soft clay. As the underlying soil was highly compressible, it was proposed that the soil be consolidated before construction of building foundations to minimize post-construction settlement. M astaka SEKOLAH REKABENTUK PENGELUARAN motorcycle parking SEKOLAH KEJURUTERAAN AWAM covered parking primary entrance post guard landscape visitor's parking covered parking visitor's parking chainlink fence BRICK FENCING walkway landscape landscape ASRAMA LELAKI ASRAMA PEREMPUAN ASRAMA LELAKI covered walkway BOUNDARY LINE reserve road 30m from centre road 40ft building setback BOUNDARY LINE 40ft building setback Site Layout Plan SOIL CONDITION / GEOTECHNICAL PROBLEM Project soil profile: Project specifications: Settlement: Total post construction settlement shall not exceed 10% of primary consolidation after completion of work. Seven (7) years post construction settlement shall not exceed 10% of the sum of the total theoretical primary consolidation settlement and secondary settlement. In addition, total post construction settlement shall not exceed 250 mm. Within the first seven (7) years of service, the differential settlement shall not exceed 100 mm within a length of 50 m in areas of transition between piled approach embankments and general low embankment or 100 mm within a length of 100 m in areas remote from structures and transition zones. MENARD SOLUTION Prefabricated Vertical Drain (PVD) + Surcharge (by others) was installed to accelerate rate of consolidation and improve soil undrained shear strength.