Authors :
Wahyu Afrizal; Titis Lukita Sari
Volume/Issue :
Volume 8 - 2023, Issue 7 - July
Google Scholar :
https://bit.ly/3TmGbDi
Scribd :
https://tinyurl.com/2zxkvek8
DOI :
https://doi.org/10.5281/zenodo.8238478
Abstract :
Way Sekampung Dam is one of the national
strategic projects located in Pringsewu Regency,
Lampung. One of the main works in the Way Sekampung
Dam Project is the excavation of slopes. Natural slopes
are converted into angular slopes, to maintain soil
stability at the site, but the potential for landslides due to
erosion and water flow is still very likely. Referring to
these problems, protection is needed to reduce erosion
that occurs due to water flow on the surface of the
excavated slope. Natural slopes are converted into slopes
with a certain slope with the aim of maintaining soil
stability at the location. However, the potential for
landslides due to erosion and water flow is still very
likely. Referring to this, protection is needed to reduce
erosion problems that occur due to water flow on the
surface of the excavated slope. This protection is expected
to be used in high and steep locations. This research was
conducted to analyze the effectiveness of the use of
vegetation as protection against excavated slopes in the
area around the dam which will be seen from the safety
factor (SF) parameter as the main indicator. In this
research, an analysis of three different conditions was
carried out, slopes in natural conditions, slopes in
disturbed conditions (due to excavation) and slopes with
disturbed conditions that were strengthened in the form
of vegetation. From the results of the analysis of the
safety factor (SF) value in natural slope conditions was
1.9; while on slopes with disturbed conditions, the SF
value was obtained by 1.3 and after the addition of
vegetation on the surface of the slope was disturbed, an
SF value of 1.5 was obtained. This indicated an increase
in slope stability after the addition of vegetation on the
soil surface of the slope is disturbed. Thus, it could be
concluded that planting vegetation on the surface of the
slope was quite effective to increase the strength and
stability of the soil and can reduce the danger of erosion
on the slope.
Keywords :
Slope Stability, Safety Factor (SF), Reinforcement, Erosion
Way Sekampung Dam is one of the national
strategic projects located in Pringsewu Regency,
Lampung. One of the main works in the Way Sekampung
Dam Project is the excavation of slopes. Natural slopes
are converted into angular slopes, to maintain soil
stability at the site, but the potential for landslides due to
erosion and water flow is still very likely. Referring to
these problems, protection is needed to reduce erosion
that occurs due to water flow on the surface of the
excavated slope. Natural slopes are converted into slopes
with a certain slope with the aim of maintaining soil
stability at the location. However, the potential for
landslides due to erosion and water flow is still very
likely. Referring to this, protection is needed to reduce
erosion problems that occur due to water flow on the
surface of the excavated slope. This protection is expected
to be used in high and steep locations. This research was
conducted to analyze the effectiveness of the use of
vegetation as protection against excavated slopes in the
area around the dam which will be seen from the safety
factor (SF) parameter as the main indicator. In this
research, an analysis of three different conditions was
carried out, slopes in natural conditions, slopes in
disturbed conditions (due to excavation) and slopes with
disturbed conditions that were strengthened in the form
of vegetation. From the results of the analysis of the
safety factor (SF) value in natural slope conditions was
1.9; while on slopes with disturbed conditions, the SF
value was obtained by 1.3 and after the addition of
vegetation on the surface of the slope was disturbed, an
SF value of 1.5 was obtained. This indicated an increase
in slope stability after the addition of vegetation on the
soil surface of the slope is disturbed. Thus, it could be
concluded that planting vegetation on the surface of the
slope was quite effective to increase the strength and
stability of the soil and can reduce the danger of erosion
on the slope.
Keywords :
Slope Stability, Safety Factor (SF), Reinforcement, Erosion
