Vol. 63 No. 1 CONTENTS
Special Issue on Ground Improvement

Special Issue on Ground Improvement (Vol.63 No.1)

Foreword

Mikio YAMADA

1

Original Paper (Vol.63 No.1)

Application of Ground Improvement Methods to Restoring of the Takamatsu Castle Tower Base

Kazuhiko NISHIDA, Kazunori OSHIMA,Tomio TAMANO, Minoru YAMANAKA, Ken SIRAISHI, Hiroyoshi KASA, Hideya NISHIYAMA and Kazunori KITAZONO

2

Applicability of the Rotary Crushing and Mixing Method to the Separation of Tsunami Deposits and Soil Improvement

Mitsushi KADOWAKI, Noriaki NAKAJIMA, Suehiko YOKOTA, Hitoshi YAMAMOTO and Masahiko YAMANO

8

Laboratory and Field Tests on Performance Evaluation of Portable Test Device for Bearing Cpacity of Ground

Minoru Yamanaka, Hirohiko Iwahara and Norio Nakayama

15

Case Study on Countermeasure to Liquefaction by Dewatering Method

Seiji SUWA and Mitsuharu FUKUDA

21

Permeability Test and Hydraulic Conductivity of Improved Soils by Deep Mixing Method

Kazuaki HIOKI, Shumpei IWANAGA, Atsushi HASHIMOTO and Shigehiro MURAKAMI

28

Effect on Reduction in Secondary Consolidation of Vacuum Preloading Method for Peat Deposit and Its Estimation

Hirochika HAYASHI and Satoshi NISHIMOTO

32

Reduction Characteristics of the Purified Water Sludge and Its Stabilization Effect under the Optimum Moisture Content

Mikio YAMADA, Hiroaki SANO, Tomohiro INAZAWA and Eiji MORIKUNI

38

About the Uncertainty of Unconfined Compression Test Results on Cement Improved Soil

Kohei SAWA, Yoshihisa NAKAYAMA, Natsuko KUSUMOTO and Yumi NAKATA

44

Deterioration Progress of Cement-Treated Ariake Clay under Seawater

Hiroyuki HARA, Daisuke SUETSUGU, Shigenori HAYASHI and Hiroshi MATSUDA

49

Evaluation of Compressive Strength of Cement-Treated Column by Numerical Simulation with Conditional Distribution

Tsutomu NAMIKAWA

55

Mechanical Properties and Possibility of the Repetitive Use of Cement Stabilized Soil

Takuro FUJIKAWA and Kenichi SATO

61

Evaluation of Durability on Water-Swelling Materials as Seepage Control Works in Waste Landfill Sites

Shinya INAZUMI, Hideo KAWABATA, Hiroyasu OHTSU and Takayuki ISODA

67

Evaluating the Long-Term Leaching Characteristics of Heavy Metals in Excavated Rocks

Toru INUI, Mariko KATAYAMA, Takeshi KATSUMI, Atsushi TAKAI and Masashi KAMON

73

Lecture (Vol.63 No.1)

Topics on Mineral & Chemical Admixture for Concrete ‡T:Expansion of Effective Use of Fly-Ash

Kazuto FUKUDOME, Nobuo OMAE, Seigo WADA and Mamoru SAKAMOTO

79