نتایج جستجو برای: embankment

تعداد نتایج: 1656  

ژورنال: Journal of Railway Research 2017
Astaraki, Farshad Astaraki, Esmaeili, Morteza, Khajehei, Hamid ,

A large portion of Iran railway routes are located in sandy desert areas. Therefore, paying attention to soil stabilization methods seems essential. In present study, in parallel to introducing the deep soil mixing as an efficient and economic method of soil improvement, in the frame work of a practical example, assuming loose sandy soil parameters, feasibility of the method application is inve...

2004
Kevin S. Richards Krishna R. Reddy

During the spring of 2003, the downstream slope of an embankment dam began to move during an extreme flooding event. The current study was implemented to evaluate the slope stability of the embankment and as a case-study to compare the limit equilibrium and continuum modeling methods. Initially, stability analyses were performed using conservative shear strength of soils estimated from both bor...

2014
Qulin Tan Xiao XU

SAR differential interferometry is an innovative space-based measurement technology for ground deformation. Under inclement Qinghai-Tibet plateau environment, monitoring and analysis of railway subgrade deformation using satellite interferometry in plateau permafrost region has very important engineering significance for stability evaluation and safety management. In the paper, a brief descript...

2013
Amin Fakhari Ali Ghanbari

There are various evaluation methods available for the discharge rate passing from the body of dam 1) Analytical methods, 2) Numerical methods and 3) Experimental methods. In the initial stages of dam design, it is necessary to approximately calculate the seepage and board of the project. In this research, almost 600 geometric models have been considered for embankment dam with clay core which ...

2009
Paulo Martins

The static loading plate tests have been done in different engineering works and particularly in earthwork quality control. At Portugal AFNOR NF P94-117-1 and DIN 18134 standards are frequently used for this purpose. These standards differ on the test protocol and on test interpretation, which reflects on the final elastic modulus obtained. Attempting the importance that this parameter assumes ...

2009
Antonio Fernandez Paul C. Rizzo

Paul C. Rizzo Associates, Inc. (RIZZO) has developed efficient computational tools to evaluate the liquefaction potential of earth embankment dams located within high risk seismic regions. Two relevant case histories are the Saluda Dam and the Santee Cooper East Dam Extension, both structures susceptible to liquefaction, and located in South Carolina. Saluda Dam presents liquefaction risks with...

2016
Radhanauth Roy

to take measures of safety. He rejected the old embankment and caused a new one to be constructed far away from the river side to the east of several villages between Harala and Kashra, a distance of more than two miles in length, and which still goes by his name. The villages ti the west of this bund during each overflow were allowed to suffer their destiny. The heavy losses suffered by the pe...

2008
P. E. Miller J. P. Mills S. L. Barr M. Lim D. Barber G. Parkin B. Clarke S. Glendinning

Transport networks play a crucial part in the global economy, with roads and railways being of particular importance at regional and national scales. However, roads and railways are founded on earthworks such as embankments, which can be susceptible to slope failure. Slope instability is a costly problem, which can lead to travel disruption, and injury or loss of life. Earthwork stability asses...

ژورنال: Journal of Railway Research 2017
Khatibi, Fatemeh, Esmaeili, Morteza , Khalilian, Valiollah ,

Construction of railway track embankment over a soft subgrade will bring the necessity of using soil improvement methods for bearing capacity and settlement criteria satisfaction. As a practical improvement method, railway embankment filled with geofoam blocks is studied in this paper. First; a bilinear stress-strain model developed in FLAC2D to simulate geofoam embankment behavioral model. Sec...

2015
Yunshan Han Yanli Dong Yuanlong Wang Wei Duan Weihua Qin

To investigate the dynamic compaction mechanism of loess-filled embankment, a computational model of unit volume compaction effort was proposed as compared with the compaction test. The energy level of dynamic compaction used in actual projects was also considered. The differences between the compaction test and the unit volume compaction effort in the actual projects were studied. And also, th...

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