ANALISIS STABILITAS BENDUNGAN URUGAN TANAH: UJI MODEL FISIK DI LABORATORIUM DAN ANALISIS ELEMEN HINGGA
The dam with the great benefits, also keeps the potential dangers that can make to disaster if the operation and maintenance not done well. Some conditions that considered unstable and may lead to the collapse or dam failure on the structure is the fluctuation of water level with great intensity but...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2014
|
| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/134073/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=75054 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Universitas Gadjah Mada |
| Summary: | The dam with the great benefits, also keeps the potential dangers that can
make to disaster if the operation and maintenance not done well. Some conditions
that considered unstable and may lead to the collapse or dam failure on the
structure is the fluctuation of water level with great intensity but in a short period.
Soil dam collapse mechanism is also very concerned with the interaction of water
level fluctuations with the material of soil dam body. This research analyzed the
influence of the fluctuation of water level to the deformations and the stabilities of
soil dam.
Physical model of soil dams built inside a drainage and seepage pool.
Model of soil dams constructed by 2 variations of upstream slope are 1:1 and
1:1.5 with the composition of body material are 10% sandy silt and 90% sand
(called T10P90), 20% sandy silt and 80% sand (called T20P80) and 100% soil
(called T100). The value of deformation and stability of experimental results
compared with numerical simulation results using finite element method by
PLAXIS programs version 8.5.
Experimental results and numerical simulation showed the deformation
and stability of dam model more affected by the height of water level. The higher
the water level, the greater the deformation happens and stability decrease. The
smallest of Safety Factor (SF) is 1,027 occurred on the model T10P90 with
upstream slope 1:1 (called T10P90-S1:1) on the conditions of rising water level,
amounted to 1,331 on T10P90-S1:1 at rapid rising of water level condition and
amounted to 1,051 on T10P90-S1:1 at rapid drawdown condition. The largest SF
occurred in model T100-S1:1 by 1,680 at rising of water level condition, amounted
to 1,944 on T100-S1-1,5 at rapid rising of water level, and 1,695 on the model T100-
S1:1 at rapid drawdown condition. SF on T100 model is more safety rather than
T20P80 and T10P90. It means the dam model with more of soil is more safety rather
than the dam model with more of sand. |
|---|