نتایج جستجو برای: slope stability

تعداد نتایج: 348952  

Among all of the slope stability methods, use of stone columns and geosynthetic elements can be a good way for stabilizing. One of the efficient ways in order to reinforce earth slopes is Geogrid Encased Stone Column (GESC). This technique can dramatically increase bearing capacity and decrease settlement rate. The aim of this paper is experimentally to investigate a comparison between the beha...

Journal: :جنگل و فرآورده های چوب 0
منیژه طالبی دانشجوی کارشناسی ارشد ‏مهندسی جنگل، دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران باریس مجنونیان استاد گروه جنگل داری و اقتصاد جنگل، دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران احسان عبدی دانشیار گروه جنگل داری و اقتصاد جنگل، دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران محمدرضی الهیان کارشناس ارشد و کارشناس مسئول ادارة کل منابع طبیعی شهرستان کلیبر، ارسباران، ایران

forest roads are basic infrastructures for management of forested areas. sustainable management of roads depends on regular and timely forest road maintenance. road inventory is as an important tool to recognize the needs of roads and do corresponding correction operations. gis can be a powerful tool for acquirement, analysis and management of data in road management. the purpose of this study ...

عبدالشاهی, روح اله, مختاری فر, خدیجه , پورسیدی, شهرام ,

Genotype by environment interaction creates intricacy in yield prediction and is a challenge in agronomy and plant breeding. In order to assess yield stability of eight bread wheat genotypes in eight environments (four years under normal and drought stress conditions), eight randomized complete block design with three replications were conducted out in Kerman. Results analyzed as a combined des...

Journal: :JNW 2014
Wen Zhong Zhuoying Tan Xiaojun Wang Jin Wang Tianshou Hu

Rainfall infiltration exerts great effect on the stability of soil slopes. Based on the actual rainfall data, saturated-unsaturated seepage theory and the mechanical theory of unsaturated porous media, numerical simulations were conducted to examine the seepage field of saturatedunsaturated slope during rainfall infiltration in this paper. The influence of the coefficient with rainfall duration...

Earth slopes stabilization is one of the main issues focused on by are in geotechnical engineer. Use of stone columns is one of approaches well increasing the safety factor of earth slopes of the soil embankments; furthermore, it is economical besides the simplicity and ease it exhibits in implementation. . The present paper aims at an experimental comparison of the Ordinary Stone Column (OSC) ...

2017
Yijie Sun Hongzhong Xu Peng Gu Wenjie Hu

By installing FBG sensors on the geogrids, smart geogrids can both reinforce and monitor the stability for geogrid-reinforced slopes. In this paper, a geogrid-reinforced sand slope model test is conducted in the laboratory and fiber Bragg grating (FBG) sensing technology is used to measure the strain distribution of the geogrid. Based on the model test, the performance of the reinforced soil sl...

2001
Linlin GE

GPS multipath has long been considered a major error source in GPS applications. In this paper, however, an attempt is made to use multipath as a signal. The proposed application of using GPS multipath to monitor the slope stability involves two steps. The first step is to extract multipath and to detect its change based on an adaptive filter using the leastmean-square algorithm. In the second ...

2009
Ripendra AWAL Hajime NAKAGAWA Kenji KAWAIKE Yasuyuki BABA Hao ZHANG

Synopsis The failure of landslide dam formed by mass movements may occur by sudden sliding of the dam body. So, this study focuses on three-dimensional (3D) transient seepage and slope stability analysis of landslide dam. The 3D slope stability model coupled with transient seepage flow model is used for numerical simulations. Experiments are performed in the flume to measure movement of moistur...

2016
M. D. Ferentinou M. G. Sakellariou

The current paper illustrates the application of computational intelligence tools in slope performance prediction both in static and dynamic conditions. We present the results obtained by using the back-propagation algorithm, the theory of Bayesian neural networks and the Kohonen self-organizing maps, one of the most realistic models of the biological brain functions. We estimate slope stabilit...

2005
S. NANDY J. J. JIAO

On August 13, 1995, a slope above Shum Wan Road failed due to high rainfall and caused a 30-m section of Nam Long Shan Road to collapse. The slope consists of weathered tuffs with a clay layer on the surface ofthe failure. A hydrogeological study was carried out by saturated finite difference grid model, MODFLOW, for the slope at the Shum Wan Road area. From the ground-water model, it was found...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید