scholarly journals Study on Development of Soil Improvement Method Using Construction Waste Soil.

1996 ◽  
pp. 199-210 ◽  
Author(s):  
Minoru Matsuo ◽  
Minoru Kimura ◽  
Ryouji Nishio ◽  
Yutaka Ando
Keyword(s):  
Soil Improvement ◽  
Construction Waste ◽  
Improvement Method ◽  
Waste Soil

scholarly journals Development of Soil Improvement Method Using Construction Waste Soil.

1997 ◽  
pp. 237-248 ◽  
Author(s):  
Minoru Matsuo ◽  
Minoru Kimura ◽  
Ryouji Nishio ◽  
Yutaka Ando
Keyword(s):  
Soil Improvement ◽  
Construction Waste ◽  
Improvement Method ◽  
Waste Soil

scholarly journals Strength Characteristics of Cement Treated and Expanded Polystyrene Mixed Lightweight of Waste Soil from the Construction Site of a Yangtze River Bridge in China

2020 ◽  
Vol 2020 ◽  
pp. 1-7 ◽  
Author(s):  
Weihua Lu ◽  
Jianyun Wang ◽  
Yongxing Zhang
Keyword(s):  
Compressive Strength ◽  
Yangtze River ◽  
Raw Materials ◽  
Fine Sand ◽  
Expanded Polystyrene ◽  
Strength Characteristics ◽  
Construction Site ◽  
Exponential Relationship ◽  
Construction Waste ◽  
Waste Soil

In the past decades, the speed and scale of Chinese infrastructure construction have been enormous, and the resulting construction waste is also quite amazing, which has become a huge threat to environmental protection. If the pollution-free engineering utilization of the construction waste can be achieved at a low cost, it will undoubtedly be a great benefit for the country and the people. Therefore, a preliminary experimental study was conducted to investigate the strength characteristics of the cement treated and expanded polystyrene mixed lightweight. The waste soil (muddy clay and fine sand) as the main component of the lightweight mixture is taken from a foundation construction site of a Yangtze River Bridge which connects two eastern coastal cities, Zhenjiang and Yangzhou. With different mixture ratios and additives of the cement treated and expanded polystyrene mixed lightweight, a series of cubic samples were tested by the unconfined compressive strength test, and collections of standard cylinder samples prepared by hand were inspected by the conventional triaxial shear test. Then, a good exponential relationship between the uniaxial compressive strength and the cement mixing ration was founded, and a logarithmic relationship was captured between the compressive strength and curing time within a period of 28 days after the specimens were made. Samples made of different soil as raw materials have different strengths, but all of these specimens show a strain-hardening and stable behavior. Results show that the mechanical strength characteristics of the cement treated and expanded polystyrene mixed waste soil mainly depend on the proportions of lightweight mixture.

SEISMIC EVALUATION MODEL TEST OF COUPLED PILES WITH ITS INTERMEDIATE SOIL IMPROVEMENT METHOD IN SHEET PILE QUAY WALLS

2019 ◽  
Vol 75 (2) ◽  
pp. I_569-I_574
Author(s):  
Ryota NATSUSAKA ◽  
Eiji KOHAMA ◽  
Hirotaka ITO ◽  
Satoshi MATSUMURA ◽  
Takaaki MIZUTANI ◽  
...  
Keyword(s):  
Model Test ◽  
Evaluation Model ◽  
Soil Improvement ◽  
Sheet Pile ◽  
Seismic Evaluation ◽  
Improvement Method

Development of in-Situ Soil Improvement Method using Collapsible Mixing Blades

2012 ◽  
Author(s):  
Hiroyasu Ishii ◽  
Tadafumi Fujiwara ◽  
Makiko Kobayashi ◽  
Tomoyuki Aoki ◽  
Hidetake Matsui ◽  
...  
Keyword(s):  
Soil Improvement ◽  
Improvement Method

INNOVATIVE SOFT SOIL IMPROVEMENT BY VACUUM DE-WATERING AND DYNAMIC COMPACTION

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Tuncer B. Edil
Keyword(s):  
Large Scale ◽  
Ground Improvement ◽  
Soft Soil ◽  
High Vacuum ◽  
Cohesive Soil ◽  
Soil Improvement ◽  
Economic Benefits ◽  
Dynamic Compaction ◽  
Environmental Benefits ◽  
Improvement Method

Recently, an innovative soft soil improvement method was advanced in China by integrating and modifying vacuum consolidation and dynamic compaction ground improvement techniques in an intelligent and controlled manner. This innovative soft soil improvement method is referred to as “High Vacuum Densification Method (HVDM)” to reflect its combined use of vacuum de-watering and dynamic compaction techniques in cycles. Over the past ten years, this innovative soft soil improvement technique has been successfully used in China and Asia for numerous large-scale soft soil improvement projects, from which enormous time and cost savings have been achieved. In this presentation, the working principles of the HVDM will be described. A discussion of the range of fine-grained, cohesive soil properties that would make them ideal for applying HVDM as an efficient ground improvement method will be discussed. The economic benefits and environmental benefits of HVDM are elucidated.

Study on the Strength Properties and Failure Mode of Recycled Sludge Lightweight Soil

2013 ◽  
Vol 275-277 ◽  
pp. 1281-1284 ◽  
Author(s):  
Guo Cai Wang ◽  
Ling Sha ◽  
Fei Li Jin
Keyword(s):  
Failure Mode ◽  
Volume Ratio ◽  
Strength Properties ◽  
Test Method ◽  
Construction Waste ◽  
Curing Conditions ◽  
Compressive Strength Test ◽  
Waste Gypsum ◽  
Mass Volume ◽  
Waste Soil

Lightweight technology is to transform the discarded materials, such as dredged silt, construction waste soil, waste foam plastics, industrial waste fly ash, waste gypsum, etc., into lightweight soil. This kind of soil has been utilized comprehensively, which can produce good economic benefit, environmental and social benefits. In order to further investigate the properties of mixed lightweight soil, this paper uses indoor test method to study the recycled sludge lightweight soil samples prepared from the construction waste soil by mixing with EPS particles and cement according to certain mass/volume ratio and cured in standard curing conditions. The strength properties and failure mode are analyzed using the direct shear test and unconfined compressive strength test, and the effect of curing period, cement content, EPS particle fraction, etc., on the strength and failure mode is analyzed.

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