Bayes Ahmed
Landslides are a common hazard in the highly urbanized hilly areas in Chittagong Metropolitan Area (CMA), Bangladesh. The main cause of the landslides is torrential rain in short period of time. This area experiences several landslides each year, resulting in casualties, property damage, and economi...
Song-Yu Liu, Yan‐Jun Du, Yaolin Yi, Anand J. Puppala
The soil cement deep mixing method has been used to improve soft clayey soils under embankment loading conditions. A compacted granular fill layer or geosynthetic reinforcement layer is placed over the top of soil cement deep mixed (DM) columns to reduce differential settlement between DM soil and t...
D. Clouteau, Maarten Arnst, Tahmeed M. Al‐Hussaini, Geert Degrande
C.R.I. Clayton, Abu Bakar Siddique, R.J. Hopper
The detailed features of the design of a sampling tube, such as area ratio, inside clearance, cutting edge taper angle, etc., have an important influence on the disturbance caused when a tube sampler is pushed into cohesive soil. Currently, most tube sampler designs have evolved on the basis of empi...
Hossain Md. Shahin, Teruo Nakai, Kenji Ishii, Toshikazu Iwata et al.
M. S. A. Siddiquee, Fumio Tatsuoka, Тадатсугу Танака, Kazuo Tani et al.
Raja Sekhar Madhyannapu, Anand J. Puppala
This paper discusses both design methodology and construction procedures for stabilizing expansive subsoils of moderate active depths, using deep soil mixing (DSM) technology/construction. These procedures were derived as a part of the research focusing on the evaluation of effectiveness of DSM tech...
Shangchuan Yang, Ben Leshchinsky, Kai Cui, Fei Zhang et al.
For conventional assessment of the bearing capacity of shallow foundations on level ground, dimensionless bearing capacity factors are used to establish the contribution of footing size, footing embedment, and soil shear strength. This study presents the derivation of an analytical approach toward e...
Joel Smethurst, Alister Smith, Sebastian Uhlemann, C. Wooff et al.
Instrumentation is often used to monitor the performance of engineered infrastructure slopes. This paper looks at the current role of instrumentation and monitoring, including the reasons for monitoring infrastructure slopes, the instrumentation typically installed and parameters measured. The paper...
Dennes T. Bergado, Sayeed Ahmed, Casan L. Sampaco, A. S. Balasubramaniam
Time‐settlement data of more than 30 different sections of the 55‐km long Bangna‐Bangpakong Highway in Thailand are analyzed. The deformation parameters, namely: undrained modulus, Eu; drained modulus, E′; and coefficient of consolidation, Cv, are backfigured from the field performance of the highwa...
Enamul Hoque, Takeshi Sato, Fumio Tatsuoka
Abstract The performance of local deformation transducers (LDTs) is described in the light of obtaining reliable data on the stiffness of geomaterial in a small-strain range. The components of LDTs and their functions are described, including recent modifications aimed at improving performance. Reso...
Naveel Islam, Bipul Hawlader, Chen Wang, Kenichi Soga
Large-scale landslides in sensitive clays cannot be explained properly using the traditional limit equilibrium or Lagrangian-based finite-element (FE) methods. In the present study, dynamic FE analysis of sensitive clay slope failures triggered by an earthquake is performed using a large-deformation...
Fengwen Lai, Ningning Zhang, Songyu Liu, Dayu Yang
Active earth pressure on retaining structures supporting a narrow column of soil cannot be properly analysed using Coulomb's theory. Finite-element limit analysis (FELA) shows that the soil forms multiple failure surfaces if the soil column is sufficiently narrow. This paper proposes a framework for...
Hilal Ahmad, Chen Ningsheng, Mahfuzur Rahman, Md Monirul Islam et al.
The China–Pakistan Economic Corridor (CPEC) project passes through the Karakoram Highway in northern Pakistan, which is one of the most hazardous regions of the world. The most common hazards in this region are landslides and debris flows, which result in loss of life and severe infrastructure damag...
Mingxing Zhu, Yanbei Zhang, Weiming Gong, Lei Wang et al.
To investigate the influence of the axial force and its distribution along the pile shaft on the response of laterally loaded piles, a generalized solution is proposed based on the transfer matrix approach, in which the transfer matrix coefficients for piles in the free, elastic, and plastic zones w...