Soil stabilization

About: Soil stabilization is a research topic. Over the lifetime, 3161 publications have been published within this topic receiving 48437 citations.

Ground improvement techniques for railway embankments

Abstract: A high-speed railway project for trains of speeds of up to 160 km/h is currently being constructed between Rawang and Bidor (110 km long) in Peninsular Malaysia. The ground improvement methods adopted in the project are vibro-replacement with stone columns, dry deep soil mixing (cement columns), geogrid-reinforced piled embankments with individual pile caps and removal/replacement works. This paper provides a detailed insight into the design and implementation of vibro-replacement and the deep soil mixing treatment methods used in the project. The use of plate bearing tests and field instrumentation to monitor the performance of the stone columns and soil mixing ground treatment methods is also discussed. This paper also provides a brief overview of other treatment methods implemented in this high-speed railway project such as a pile embankment with geogrids and removal/replacement works.

Stabilization of clayey soil using ultrafine palm oil fuel ash (POFA) and cement

Abstract: Palm oil fuel ash (POFA) in both cost-effective and environmentally friendly ways has potential applications in soft soil stabilization. This study investigates the possible uses of POFA (individually and in combination with cement) on several basic characteristics of clayey soil behavior, such as proctor compaction, Atterberg limit, and unconfined compression strength (UCS). These properties are compared with those of unstabilized clay and stabilized clay with cement. Scanning electron microscopy with X-ray microanalysis is conducted on untreated and treated soil to elucidate their strength development, and the observed test results are then explained. Findings show that POFA and POFA/cement mixture treatments result in significant reductions in the soil plasticity index (PI). The results of the compaction test indicate that the utilization of POFA and POFA/cement mixture in soft soil stabilization decreases the optimum moisture content and increases the maximum dry density across selected binder dosages. The results show that using POFA alone to stabilize clayey soil results in a slight increase in the UCS of the specimens until the 28 days of curing, whereas combining POFA with cement results in a sharp increase in the UCS of the samples in the same curing time. The results demonstrate the environmental, technological, and economic advantages of utilizing this well known agricultural waste as a partial substitute for cement in stabilizing soils, particularly soft soils that usually demand high quantities of stabilizer to reach satisfactory results.

A Review on Different Types Soil Stabilization Techniques

Abstract: Soil stabilization is the process of improving the shear strength parameters of soil and thus increasing the bearing capacity of soil It is required when the soil available for construction is not suitable to carry structural load Soils exhibit generally undesirable engineering properties Soil Stabilization is the alteration of soils to enhance their physical properties Stabilization can increase the shear strength of a soil and/or control the shrink-swell properties of a soil, thus improving the load bearing capacity of a sub-grade to support pavements and foundations Soil stabilization is used to reduce permeability and compressibility of the soil mass in earth structures and to increase its shear strength The main objective of this paper is to review the physical and chemical properties of soil in different types of stabilization methods Stabilization and its effect on soil indicate the reaction mechanism with additives, effect on its strength, improve and maintain soil moisture content and suggestion for construction systems Soil stabilization can be accomplished by several methods All these methods fall into two broad categories namely mechanical stabilization and chemical stabilization Mechanical Stabilization is the process of improving the properties of the soil by changing its gradation and chemical stabilization of expansive soil comprises of changing the physico-synthetic around and within clay particles where by the earth obliges less water to fulfill the static imbalance and making it troublesome for water that moves into and out of the framework so as to fulfill particular designing road ventures

Stabilized earth roads

Abstract: Keywords: Stabilite des sols ; Fondation Reference Record created on 2004-09-07, modified on 2016-08-08