Use of Light-Weight Treated Soils Made of Waste Soil in Airport Extention Project

Tsuchida, Takashi; Fujisaki, H.; Makibuchi, Masaharu; Shinsha, Hiroshi; Nagasaka, Yuji; Hikosaka, Kaneo

doi:10.2208/jscej.2000.644_13

Cited by 12 publications

(4 citation statements)

References 2 publications

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“…In order to understand the flow-ability of the fluidization treated soils (A) and (B), the flow test based on "Test Method for Air Mortar and Air Milk (JIS A 313-1992, using an air cylinder of φ80mm h 80mm) [8], [9]" is performed. At the same time, an animation of the flow test is also taken.…”

Section: Understanding and Evaluation Of Flow-ability By The Flow Testmentioning

confidence: 99%

Evaluation of Flow-Ability on Fluidization Treated Soils Based on Flow Analysis by MPS Method

Inazumi¹

2017

geomate

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ABSTRACT:Recently, fluidization treated soils have come to be used as landfill materials or fillers in such landfill of underground space in Japan. However, the design and construction of the fluidization treated soils at present is based only on empirical knowledge. Therefore, taking into account the findings based on a theory is thought to be useful. In this study, it has evaluated the flow-ability of the fluidization treated soils based on the flow analysis by the MPS method and the experimental evaluation. Favorable results have been obtained in the numerical flow analysis by using the Bingham model to the MPS method. In addition, the authors have developed a fluidization treated soil with increased flow-ability (super-fluidization treated soil). It has evaluated from two aspects of mechanical properties and flow properties of the high flow of the super-fluidization treated soil. The flow properties show that it has a high flow-ability than the fluidization treated soil.

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Section: Understanding and Evaluation Of Flow-ability By The Flow Testmentioning

confidence: 99%

Evaluation of Flow-Ability on Fluidization Treated Soils Based on Flow Analysis by MPS Method

Inazumi¹

2017

geomate

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“…The low unit weight, typically 6-15 kN/m 3 , is a result of incorporating lightweight materials such as air-foam or EPS. This makes the lightweight soil useful as a backfilling material to compensate for its high cost and reduces the overburden stress applied to underlying compressible soils (Tsuchida et al, 2000;Otani et al, 2002;Tsuchida andKang, 2002, 2003;Watabe et al, 2004).…”

Section: Experiments For Rlsmentioning

confidence: 99%

Prediction of strength of reinforced lightweight soil using an artificial neural network

Park

Kim

2011

Engineering Computations

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Purpose -Reinforced lightweight soil (RLS) consisting of dredged soil, cement, air-foam, and waste fishing net is considered to be an eco-friendly backfilling material because it provides a means to recycle both dredged soil and waste fishing net. It may be difficult to find an optimum mixing ratio of RLS considering the design criteria and the construction's situation using the limited test results because the unconfined compressive strength is complicatedly influenced by various mixing ratios of admixtures. As a result, in order to expedite the field application of RLS, an appropriate prediction method is needed. The paper aims to address these issues. Design/methodology/approach -In this study, an artificial neural network (ANN) model that was based on experimental test results performed on various mixing ratios, was developed to predict the unconfined compressive strength of RLS. Findings -It was found that the unconfined compressive strength of RLS at a given mixing ratio could be reasonably estimated using the developed neural network model. In addition, sensitivity analysis was also conducted to evaluate the effect of mixing conditions on the compressive strength of RLS. Practical implications -RLS is considered to be environmentally friendly because it provides a means to recycle both dredged soil and waste fishing net. The contractors could use the proposed ANN model as an alternative method to predict the strength of RLS with a specific mixing ratio. Originality/value -This paper reveals that the developed ANN model can be served as a simple and reliable predictive tool for the strength of RLS without excessive laboratory tests for various admixture contents. An optimum admixture ratio of composed materials to get a designed strength could be easily found by using the proposed ANN model.

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“…Its unit weight, typically in the range 6-15 kN=m 3 , can be adjusted by varying the amount of air foam mixed with the soil mixture (Tsuchida and Egashira 2004). In Japan, lightweight soil has been used in coastal construction projects (Tsuchida et al 2000;Tsuchida andKang 2002, 2003). One of the most common applications of lightweight soil is as backfill material, especially on underlying compressible soil, to reduce both the overburden stress acting on underground structures and the lateral earth pressure acting on retaining structures.…”

Section: Lightweight Soil and Cgmmentioning

confidence: 99%

Experimental Study on Engineering Characteristics of Composite Geomaterial for Recycling Dredged Soil and Bottom Ash

Kim

Lee

Park

2011

Marine Georesources & Geotechnology

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This article describes an experimental evaluation of engineering characteristics of composite geomaterial (CGM). Using several series of unconfined compression tests, flow tests, direct shear tests, and elastic wave tests. The experimental results indicated that flow value of CGM depended greatly on water content of the soil mixture, and unconfined compressive strength as well as stress-strain behavior of CGM were strongly influenced by the content of each component in the mixture. Unconfined compressive strength increased with an increase in cement or bottom ash content, but decreased with an increase in water or air foam content. Small strain properties of CGM also increased as bottom ash content increased. These increases in the shear strength and small strain moduli of CGM caused by adding bottom ash to the mixtures may be due to both friction at the interface of mixture components and particle bonding caused by pozzolanic reaction of bottom ash.

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Use of Light-Weight Treated Soils Made of Waste Soil in Airport Extention Project

Cited by 12 publications

References 2 publications

Evaluation of Flow-Ability on Fluidization Treated Soils Based on Flow Analysis by MPS Method

Evaluation of Flow-Ability on Fluidization Treated Soils Based on Flow Analysis by MPS Method

Prediction of strength of reinforced lightweight soil using an artificial neural network

Experimental Study on Engineering Characteristics of Composite Geomaterial for Recycling Dredged Soil and Bottom Ash

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