valuation of the optimum dimension of installation pocket for pressure cell using numerical modeling
Subject Areas :Kaveh Ahangari 1 , Seyed Mohsen Moosavi Kojori 2
1 - کارشناس ارشد مهندسی معدن دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران
2 - کارشناس ارشد مهندسی معدن دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران
Keywords: Total stress, Pressure cell, flac2D software, Earth dam, Locating pocket dimension,
Abstract :
Pressure cell is used to measure total stress in soil. There is possibility of the rotation of pressure cell duringthe fill compaction and damage due to traffic passage. So, the pressure cell is located in a pocket which isexcavated in soil. Unsuitable pocket dimension will prevent accurate measurement of pressure cell. In thisstudy a new model is introduced to determine the optimum dimension of the pocket and investigate theeffects of the pressure cell properties and the installation condition on results of this device in earth dam. Atwo dimensional finite different method, FLAC software, was used for this purpose. Results of modelingshowed that the width of each pocket must be about 3 times more than the diameter of the pressure cell andits height is equal to the diameter of installed cell.