Pile spacing effects under lateral loading
Publish place: International Conference on Contemporary Iran in Civil Engineering , Architecture and Urban Development
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CICEAUD01_0127
تاریخ نمایه سازی: 29 فروردین 1397
Abstract:
Ultimate lateral resistance and lateral subgrade modulus within a pile group are known as the key parameters in the soil-pile interaction phenomenon. In this study, Experimental investigations were conducted on twelve model pile groups of configuration for embedded length-to-diameter ratio l/d=32 into loose and dense sand, spacing form 3 to 6 pile diameter, in parallel and series arrangement. The ultimate lateral load is increased 53% in increasing of s/d from 3 to 6 owing to effects of sand relative density. An increasing of the number of piles in-group decreases the group efficiency owing to the increasing of overlapped stress zones and active wedges. A ratio of s/d more than 6d is large enough to eliminate the pile-to-pile interaction and the group effects. It may be more in the loose sand.
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Authors
Mahdy Khari
Assistant Professor, Department of Civil Engineering, East Tehran Branch, Islamic Azad University, Tehran, Iran
Majid Khari
Master Student, Department of Civil Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran