SOIL IMPROVEMENT METHOD SELECTION MANAGEMENT FOR SHORE PROTECTION FACILITIES IN PORT OF MUYA CORRESPONDING TO ON-SITE SITUATION

2018 ◽  
Vol 74 (1) ◽  
pp. 11-25
Author(s):  
Yukinobu ODA ◽  
Yasuyuki NIIMI ◽  
Katsuhiko KOIZUMI ◽  
Hideo TSUBOI
Keyword(s):  
Soil Improvement ◽  
Shore Protection ◽  
Method Selection ◽  
Improvement Method

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.

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

Various Flow Equations to Model the New Soil Improvement Method Biogrout

2012 ◽  
pp. 633-641 ◽  
Author(s):  
W. K. van Wijngaarden ◽  
F. J. Vermolen ◽  
G. A. M. van Meurs ◽  
C. Vuik
Keyword(s):  
Soil Improvement ◽  
Flow Equations ◽  
Improvement Method

scholarly journals Analytical methods for stress transfer efficacy in the piled embankment

2020 ◽  
Vol 61 (HTCS6) ◽  
pp. 81-87
Author(s):  
Hung Van Pham ◽  
Phuc Dinh Hoang ◽  
Thinh Duc Ta ◽  
Keyword(s):  
Analytical Methods ◽  
Load Transfer ◽  
Soft Soil ◽  
Stress Transfer ◽  
Soil Improvement ◽  
Soil Arching ◽  
Negative Skin Friction ◽  
Load Transfer Mechanism ◽  
Improvement Method ◽  
Piled Embankment

Soft soil reinforced by rigid inclusions under embankment is a soft soil improvement method, known as a piled embankment. It has been widely studied and applied over the world, since 90’s decade of the last century. The behavior of a piled embankment is mainly based on the formation of soil arching within the embankment and the negative skin friction around inclusion shaft. The paper investigates the mechanical behavior of a piled embankment to make clear the load transfer mechanism of the method. Additionally, some of the analytical methods in determining the stress transfer efficacy are presented.

scholarly journals EVALUASI SETTLEMENT MENGGUNAKAN SURCHARGE PRELOADING DENGAN PVD PADA PROYEK DI BANDUNG SELATAN

2020 ◽  
Vol 3 (3) ◽  
pp. 911
Author(s):  
Michael Christopher Yapriadi ◽  
Inda Sumarli ◽  
Ali Iskandar
Keyword(s):  
Pore Water ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Soil Improvement ◽  
Soil Layers ◽  
Excess Pore Water Pressure ◽  
Surcharge Preloading ◽  
Improvement Method ◽  
Degree Of Consolidation ◽  
Excess Pore

The development in Indonesia continues to grow. Hence, the feasible land for construction is drastically decreased. However, some projects must be constructed on that kind of land. One solution to solve this problem is by using a soil improvement. A project in Bandung Selatan chose to apply Surcharge Preloading with PVD soil improvement method. This project used a combination of 9,2 metres surcharge preload and a 28 metres depth PVD, with triangular formation and 1,2 metres spacing. The soil improvement was finished after 548 days. This analysis aims to evaluate the settlement from the soil improvement result, which is 1,297 metres. This analysis uses a finite difference method program. The excess pore water pressure from the analysis result is 0,229 T/m2 on the 548th day. Therefore, these soil layers have possibilities to settle again in future. The 90% degree of consolidation settlement for this soil layers is 2,31 metres, which will be reached on the 813,4th days. It is suspected that there are some mistakes either during the soil improvement designing or the soil improvement process. Pembangunan di Indonesia terus berkembang. Akibatnya jumlah tanah yang baik untuk proyek konstruksi semakin menipis. Kendati demikian, ada kalanya suatu proyek harus dilaksanakan di lokasi tersebut. Salah satu solusi yang dapat ditempuh adalah dengan melakukan perbaikan tanah. Sebuah proyek di Bandung Selatan melakukan perbaikan tanah dengan metode Surcharge Preloading dengan PVD. Proyek ini menggunakan kombinasi antara timbunan setinggi 9,2 meter dan PVD sedalam 28 meter, dengan formasi segitiga yang dipasang dengan jarak antar PVD 1,2 meter. Perbaikan tanah dilakukan selama 548 hari. Analisis ini bertujuan melakukan evaluasi terhadap kurang maksimalnya penurunan di lapangan yang hanya mencapai 1,297 meter. Analisis dilakukan dengan bantuan program beda hingga. Berdasarkan hasil analisis, besarnya excess pore water pressure pada hari ke-548 adalah 0,229 T/m,2, sehingga lapisan tanah tersebut masih memiliki potensi untuk mengalami penurunan. Adapun penurunan konsolidasi 90% yang dapat terjadi sebesar 2,31 meter pada hari ke-813,4. Diduga terdapat kesalahan baik dalam perhitungan perencanaan awal ataupun saat pelaksanaan di lapangan.

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