PERHITUNGAN DINDING PENAHAN TANAH PENANGANAN LONGSORAN RUAS JALAN MARANGKAYU KABUPATEN KUTAI KARTANEGARA

Abstract

Marang Kayu Subdistrict is one of the districts in the coastal region of Kutai
Kartanegara regency which has reserves of natural resources such as coal,
petroleum and natural gas. Marang Kayu Subdistrict rich in natural resources
infrastructure is still lagging behind compared to other districts in the coastal
area Regency, including the constraints of land transport infrastructure is still
damaged in one of its causes avalanches on some streets Marang Kayu. If
landslides feared would disrupt the flow of traffic so it is necessary the handling of
the avalanche, one of them is to build a retaining wall construction.
In this study retaining wall is planned in two segments, where the segment 1
has a length of 20 meters, 3,5 meters high plan, the soles of the foundation 2,5
meters wide, 0,50 meters thick soles of the foundation. While in the second
segment of the planned length of 15 meters high with a plan of 5 meters, the width
of the palm of the foundation 3,5 meters, 0,80 meters thick soles of the foundation.
Quality of concrete used is K.300, or 300 kg/cm2.
1 segment of calculation obtained 3567,0388 KN largest axial force, so that
the stability bolsters safe. While the largest shear force 1725,4703 KN and
stability against sliding in a safe condition.
Obtained from the calculation of segment 2 is 4925,5337 KN largest axial
force, so that the stability bolsters safe. While the largest shear force 2438,73 KN
and stability against sliding in a safe condition.