Dewi, Ratna and Borgan, William and Zunita, Ira and Sutejo, Yulindasari and Iqbal, Maulid Muhammad (2019) EFFECT OF DEEP SOIL MIXING TO INCREASING BEARING CAPACITY ON PEAT SOIL. International Journal of Geomate, 17 (63). pp. 126-132. ISSN 2186-2982 (P), 2186-2990 (O)
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Abstract
The peat soils have high compressibility properties and low bearing capacity; therefore, the settlement in peat soils is very significant. The ground improvement, such as deep stabilization needs to be carried out to increase the bearing capacity of the peat soil. The deep stabilization or deep soil mixing (DSM) is a method of soil improvement by the soil column reagent mixed with cement and other pozzolanic materials. This study used the following ingredients: added clay + 12% calcium carbide residue (CCR) and clay + 8% rice husk ash (RHA), which are expected to increase soil carrying capacity because of the properties of silica and lime possessed by pozolan materials that can bind soil particles. The variations in diameter and the number of DSM column test piece are as follows: 4 and 16 column variations with a diameter of 3.75 cm and 1 column with a diameter of 15 cm. The soil mixing column is compacted in a pipe and the concrete cylinder formwork is then pressed for 4 days. The test results showed the increased soil bearing capacity on peat using the DSM. The DSM column (clay + CCR) with a diameter of 15 cm showed the highest bearing capacity of 32.44 kPa with a bearing capacity improvement (BCI) value of 6.151 or a percentage increase in the bearing capacity by 515.09%. On the other hand, the columns (clay + RHA) with a diameter of 3.75 (4 columns) have the lowest bearing capacity, which is equal to 18.67 kPa.
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA703-712 Engineering geology. Rock mechanics. Soil mechanics.Underground construction |
| Divisions: | 03-Faculty of Engineering > 22201-Civil Engineering (S1) |
| Depositing User: | Users 1787 not found. |
| Date Deposited: | 13 Jul 2021 07:04 |
| Last Modified: | 13 Jul 2021 07:04 |
| URI: | http://repository.unsri.ac.id/id/eprint/49483 |
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