The results proved that there is an increase in shear strength due to application of consolidation pressure. The initial shear strength predicted based on the equation developed for the results of Triaxial testing agreed with the in-situ strength obtained by field vane shear test, however the ratio of strength increase for peat in this …

soil. The strain of peat soil at a height of 30 mm is greater than or equal to that of other height samples, while that of mucky soil is 20 mm. Therefore, 30mm is the recommended sample height for peat soil for the one-dimensional consolidation test. Keywords: peat soil; one-dimensional consolidation test; control conditions; total nitrogen

Abstract. This paper studies the changes in the loss on ignition (LOI), total nitrogen content (TN), and strain in a one-dimensional consolidation test on peat soil. The effects of small-range ...

It can be seen that the compressi on curves of peat soil are in inverse S-shape. After calculation, the. compression coefficient of four groups of peat a 1-2 in the range of 5.7~8.8 MPa-1, which ...

Areas containing peat soil are among the most... With the increase in population, there is a dearth of land suitable for infrastructure development. Due to poor engineering properties, many areas of land remain unutilized which also slows down rapid development. ... Consolidation, and Stabilization of Tropical Peat Soil Using Traditional …

Controlling Conditions of the One-Dimensional Consolidation Test on Peat Soil. by Bo Peng 1,*, Ruiling Feng 1, Lijian Wu 2 and Yupeng Shen 1. 1. School of Civil …

Some scholars also propose that the consolidation process of peat soil is three-stage or four-stage consolidation. In order to describe the consolidation process of peat soil …

Dharma Wijewickreme. PDF | Four peat samples, covering a wide range of fiber contents, were subjected to one-dimensional …

The coefficient of fully saturated permeability for the peat soil ranges from 10 -07 to 10 -06 cm/s. The previous study [10] indicated that the fibrous peat soil is averagely porous and has a ...

The consolidation process of peaty soil can be divided into three stages. •. The primary and secondary consolidation are mainly drainage consolidation. •. The compression caused by decomposition mainly occurs in the third stage. •. The tertiary …

A series of conventional consolidation tests and 60 d creep consolidation tests were carried out on undisturbed peat soil samples taken from Kunming for the consolidation and secondary consolidation characteristics. The variation rule and formation mechanism of secondary consolidation parameters were analyzed in detail. Test results show that …

Soil's consolidation is a geotechnical problem resulting from a stress-transfer process that initiates when the load is applied to the water contained in the soil, producing a reduction in pore ...

This paper presents a ground improvement method using sand as material in columnar inclusion. The main focus of the study is to model the consolidation behavior of peat soil reinforced by sand columns. The effects of sand column length and column diameter were determined using numerical analysis. It was revealed that the final …

characterize and stabilize peat soil to make construction viable. This study encapsulates an extensive literature review of the available published data for Atterberg limits, consolidation, and stabilization of peat soil using traditional additives, especially cement and lime. Moreover,

The raft lies on a peat soil with E of 318 kPa, v of 0.35 and C u of 3.975 kPa, C c of 1.83 and e 0 of 1.50 (Table 1). Bearing capacity of the raft in peat soil is 192.1 kPa at ϕ of 26°. However, the elastic settlement of the raft foundation is 474 mm. It is larger than the allowable settlement (60 mm).

In this case, the lateral strain of the soil mass is neglected. The testing procedure to quantify the critical soil properties associated with soil consolidation is the Oedometer Test. The term "Oedometer" derives from the Ancient Greek language and means "to swell". The test is one of the most commonly conducted, and important ...

A series of electro-osmotic consolidation experiments were carried out on an organic soil from the central Sarawak region of Malaysia. Commercially available EVD was used to induce electro-osmosis and drainage of pore water. The influence of the method of drainage and pumping interval of drained water on electro-osmotic …

This study encapsulates an extensive literature review of the available published data for Atterberg limits, consolidation, and stabilization of peat soil using …

For example, the consolidation time of peat soil is very short, it is difficult to distinguish the primary consolidation stage from the secondary consolidation stage (Macfarlane, 1900). The instantaneous settlement can be accurately calculated by using the indoor consolidation test results, but the calculated primary consolidation settlement ...

Based on ASTM D442-84 (1989), the peat soil had 45.032 % ash peat and 54.968 % organic content, and it was classified as High Ash Peat. The acidity of peat soil was 4 and it was classified as Highly Acidic Peat with a pH less than 4.5. Index compression (C c) of the peat soil was 0.659 and the coefficient of consolidation (C v) was 0.317 cm 2 ...

First, the compression of peat is much larger than that of other soils. Secondly, the creep portion of settlement plays a more significant role in …

The reconstituted peat sample was used to determine the consolidation parameters since the undisturbed samples were difficult to collect. The selected sizes of soil particles passing have been ...

The soil profile consists of soft clay layer from ground surface to depth of 3m followed by a layer of peat soil of thickness 1m, the final layer was soft to very soft clay layer till end of ...

This research is mainly focused on consolidation behaviour of peat soil studied by odeometer and electro osmosis methods. The electro osmotic consolidation is studied using Ferrum electrode and the results are compared. Construction activities on soft soils including peat have proven to be a challenging task to engineers. Peat is a type of soil ...

Research Center for Soft Soil, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, 86400, Malaysia. khaidir@uthm.edu.my Munzilah Md Rohani, Faculty of Civil and Environmental Engineering ...

For the comparison purposed between the reconstituted peat samples, 0.425 mm recorded the lowest value of the water content compared to the reconstituted peat 1.000 mm, 2.360 mm and 3.350 mm at ...

The natural moisture content obtained was 657%, within the range of previously published values for peat originating from Klias, Beaufort, and Sabah [58, 59]. The organic content was valued at 96. ...

Peat soil including soil type has high compression and low bearing capacity. Improvement of peat soil can be done with stabilization using cement, lime and other materials, but it can not be applied at depths below 1 meter. Effective method to improve it is preloading method. Preloading can be applied using embankment material, so it can accelerate the …

Previous studies fail to provide consistent information on the division method of consolidation process of peat soil. Some scholars think that the consolidation process of peat soil is the same as that of common clay, which is two-stage consolidation. Some scholars also propose that the consolidation process of peat soil is three-stage or four …

Even if the failure can be avoided, it is also inevitable that soft water-logged soil and peat takes a long time to settle when loaded by an embankment or soil fill. ... (1991) Full-scale investigations of the effect of vertical drains on the consolidation of a peat deposit overlying clay, De Mello Volume. Editoria Edgard Bldcher LTDA, Caixa ...