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pressure relieve valves
how can existence of pressure relieve valves in floor of underground concrete tank be taken into account to lessen influence of high water table on walls of a tank? should walls be designed for hydrostatic pressure of max wt anyway?
suggest that you ignore the valves and design the wall for the full load. no mechanical device is perfect - when the day comes that the valves fail, you do not want to risk wall failure also. chances are that the differential construction cost for "stronger" walls is minor anyway.
it's the net pressure that triggers design for strength and deformation compatibility.
during the service life of the tank, are there events in which the tank is empty?
and at the same time subject to atmospheric pressure?
how about events where the tank is full, then pressurized while the water table outside is drawn down?

2009-09-15, 02:37 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	pressure relieve valves pressure relieve valves how can existence of pressure relieve valves in floor of underground concrete tank be taken into account to lessen influence of high water table on walls of a tank? should walls be designed for hydrostatic pressure of max wt anyway? suggest that you ignore the valves and design the wall for the full load. no mechanical device is perfect - when the day comes that the valves fail, you do not want to risk wall failure also. chances are that the differential construction cost for "stronger" walls is minor anyway. it's the net pressure that triggers design for strength and deformation compatibility. during the service life of the tank, are there events in which the tank is empty? and at the same time subject to atmospheric pressure? how about events where the tank is full, then pressurized while the water table outside is drawn down? __________________ 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]