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grade beam with helical pile
i am designing reinforced concrete grade beam with helical piles below in an area with high water table and underground springs.
although beam can be 24 inches deep based upon loads, plan examiner tell me that 7 ft deep beams are generally used in underground spring areas and in coastal areas because of possible scour of soil below beam.
is this so? can an underground stream scour the soil and therefore impact the piles. is this plan examiner correct.
check out our whitepaper library.
scour is a definite problem in coastal areas where tidal ebb and flow causes almost continual changes in bottom contours. not familiar with this action from underground springs, but sounds like a reasonable concern.

2009-09-09, 02:58 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	grade beam with helical pile grade beam with helical pile i am designing reinforced concrete grade beam with helical piles below in an area with high water table and underground springs. although beam can be 24 inches deep based upon loads, plan examiner tell me that 7 ft deep beams are generally used in underground spring areas and in coastal areas because of possible scour of soil below beam. is this so? can an underground stream scour the soil and therefore impact the piles. is this plan examiner correct. check out our whitepaper library. scour is a definite problem in coastal areas where tidal ebb and flow causes almost continual changes in bottom contours. not familiar with this action from underground springs, but sounds like a reasonable concern. __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]