ANALYSIS OF CONSOLIDATION SETTLEMENT USING ANALYTICAL, NUMERICAL METHODS AND FIELD OBSERVATIONS. CASE STUDY : CONSTRUCTON OF INDRAPURA KISARAN TOL ROAD SECTION 1 STA 111+505 UNTIL STA 112+300
One of the most common occurred challenges on highway construction projects is the structural embankment that lies above soft soil surface, causing the problems such as long-term settlement, unstable embankment slope, and low subgrade bearing capacity. Proper and suitable soil improvement techniq...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/85425 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | One of the most common occurred challenges on highway construction projects is
the structural embankment that lies above soft soil surface, causing the problems
such as long-term settlement, unstable embankment slope, and low subgrade
bearing capacity. Proper and suitable soil improvement technique shall be chosen
to overcome those problems. This thesis presents the results of consolidation
settlement study on the Indrapura-Kisaran Toll Road Construction Project based
on analytical method, numerical method, and site observation results. The amount
and duration of settlement was estimated analytically by using 1-D Terzaghi
formula, and numerically by using Finite Element Method, to be compared with
actual settlement by data using Asaoka method. The consolidation analysis was
conducted by comparing settlement rate without Prefabricated Vertical Drain
(PVD) and with PVD usage. The result shows that the analytical method produce
highest settlement amount, whereas Asaoka method produce the lowest. The study
sums up that it needs 2-5 days to reach 90% consolidation degree by using PVD,
much faster than without PVD which needs up to 47 days. |
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