【正文】 (2) is able to adapt to the foundation deformation。s case, probably twice, in one hundred after a one hundred did not e to pass. Small reservoirs in the flood control standards of earth and rockfill dam: small (a) type reservoir level of main building to level 4, the design flood control standard is once every 30 to 50 years and check once the flood control standard is 500。s two main characteristic level reflects the degree of reservoir filling up with rain, generally expressed in altitude, the unit is meters, meters, such as water level, said with average sea level as a datum, Qingdao yellow sea water meters on the datum plane, also known as the yellow sea refers to when a water reservoir can water storage volume size (volume), usually with cubic water level and capacity of the unit is different, but the corresponding relationship between them have each other, a reservoir water level is corresponding to a corresponding capacity. General said the reservoir characteristics of water level and capacity. Water area of curveAs the change of water level, the surface area of the reservoir is also different, different water for different surface area. Water level, the corresponding relationship between the size of the available curve, called water level area of curve Level capacity curveBy the same token, the different levels have different capacity, according to its corresponding relation, draw water capacity catchment area above refers to the dam site and the abutment and the area of the watershed is surrounded, is able to rainwater to the total land area of reservoir, generally expressed in square kilometers, can amount to take on topographic map, small reservoirs are often measured using the measured method.2 Reservoir engineering inspection The task of reservoir engineering inspection observations(1) monitoring the status of engineering change and work situatio