LT SAMBO has the largest number of line ups in the field of Cast-In-Place pile equipment. In Korea, we has the best technology that we have successfully built civil and building construction as well as projects with the highest degree of difficulty such as deep water drainage (SEA SHAFT) of nuclear power plants and other plants.
We are also competing with global players fairly in Singapore, Southeast Asia, and middle east like UAE (Dubai and Abu Dhabi), Kuwait and Qatar.
Cast-In-Place pile method is to form piles in the ground by drilling ground holes with excavation equipment and placing concrete in the perforation holes after introducing the stress material (reinforcing bars, H-BEAM). Compared to conventional pile driving method, it is advantageous for downtown construction because there is little noise and vibration, In particular, it is possible to construct large diameter piles. According to the mechanical excavation method, it is classified into RCD, PRD, EARTH DRILL, and deep foundation method.
The R.C.D. (Reverse Circulation Drill Method) method is one of the typical large-scale cast-in-place concrete pile construction methods. After installation of casing, it is excavated while maintaining the wall of driven hole by hydrostatic pressure and natural mud water occurring during excavation. In the excavation method, a special roller bit is attached to the end of the drill rod, and the rock is excavated by rotating 360 degrees. The shredded and excavated soil is discharged through the drill rod pipe, and the discharged circulating water is circulated to the excavator through the settling pond.
It is a type of foundation that supports ground structures, which excavates the ground by rotating it while blowing it with compressed air, and discharging the excavated soil with compressed air. The existing foundation method is applied to one or two strata, but this construction method can be applied to various kinds of soil layering, rock foundation, prevention of slope movement and TOP-DOWN construction. It is a construction method that can secure the grounding force with a cross section corresponding to the diameter of 600mm ~ 1200mm which is slightly smaller than R.C.D Pile
Earth Drill method
Generally, it is a method to excavate with a bucket or earth-drill excavator and to form a cast-in-place pile by concrete pouring without the need to maintain the wall of driven hole by the use of a casing or a stabilizer liquid
Deep foundation method(caisson pile)
This method is to excavate by using manpower for concrete foundation construction such as vertical gang excavation from the ground and earth shielding installation with steel pipe. This is a method of making the concrete foundation construction including the vertical gang excavation work easier, and more efficiently & reliably while minimizing noise and vibration in a narrow place, a narrow space, and a sloping place in which a equipment is difficult to enter.