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Yanwangbizi reservoir used to change the way of flood control

Hennessy play the role of pesticides. 2 2.1 Flood and operating methods to determine the principles of flood control (1) The reservoir has been at Yanwangbizi \principles. (2) The original \second reservoir flood storage by using the proposed flow and water level conditions as a judge, so that the flood protection standards, Chaoyang City, the preliminary design of the original 50 year flood up to 100 year flood,tory burch outlet, or 100 year flood Yanwangbizi Reservoir Once Yan discharge interval in the sun with the convergence of flows are less than or equal to 8800m / s. 2.2 determine the Flood Control Reservoir Flood Control by the process can be seen, WATER,ghd glätteisen salon, Chaoyang City 50 No. 5, 2008 (Volume 26 286) the flow is mainly affected by silk combined discharge of Yanwangbizi Reservoir, So as long as proper control of 100 year flood water level in a section of the discharge to meet the requirements. The calculation and analysis, the water level between the 20 ~ 2l30m control reservoir spillway overflow weir at 8 holes to meet the requirements. 100 year flood control reservoir discharge Yanwangbizi Chaoyang station portfolio flows to no more than 8800in / s, calculated by the flood regulation,p90x workout schedule, flood check Yanwangbizi reservoir is 216.26m, the corresponding capacity l28.97 × 10. rI1, the corresponding maximum discharge flow 14795.42ITI / s. Design l0O year flood water level is 212.44m, the corresponding capacity of 55.93 × 10. m. Reservoir control using methods shown in Table l, flood adjustment calculation results in Table 2. Table 1 Yanwangbizi reservoir water, the use of his way to note-ft weir water flow holes f) (.) Chou site 2l1. O ~ 213. O38213. O ~ 3101, storage ≤ 1000m / S, the storage = a bank; 2, storage> 1000m / S, n ≤ 4300m / s when the library ≤ 3900m / s; 3, warehousing> 4300m / s, and the water level ≤ 211.0m, the reservoir discharge opening Yanwangbizi Table 2 Calculation results of flood regulation storage table frequency of the highest flood peak discharge amount of the maximum water level (%) peak (m3 / s) corresponding water level (m) the highest water level (m) corresponding storage capacity (10m.) (m / s) Table 3 Yanwangbizi reservoir change the original design and subsequent use of the highest flood water level frequency comparison table m3 feasibility analysis of dam stability analysis: According to the dam Stability of view, check condition of stable reservoir control reservoir in Table 3 Yanwangbizi change the original design and subsequent use of the highest flood water level frequency comparison table shows that 100 years of design water level is only 054m higher than the original design , calculated by the review, 1O0 design water level elevation of 0.54m, does not affect the stability of the dam. Influence of reservoir sedimentation: the reservoir flood control operation mode can be seen, the reservoir is only in the regulation of flood when the water level began to control more than 211.0 vent, but in the event of more than 50 years until the beginning of a flood event standards Control of discharge. Therefore, the occurrence of the event marked 50 years; Zhui the following flood conditions not deteriorating reservoir sedimentation. Adjustment calculation results by the flood can be seen, 100 year flood is only higher than the preliminary design of the original 0.54m, 200 year flood is only higher than the 0.23rll, we can see that compared with the preliminary design, if the reservoirs in accordance with this use, will not be a serious deterioration in conditions of sedimentation, and the occurrence of the event marked 50 years; Zhui more floods are rare, so the effects can even be ignored. Influence of reservoir resettlement relocation: It can be seen from Table 3, and 50 years of flood pool level with no major changes in the original design, therefore, had no effect on the relocation of migrants. 4 Conclusion Yanwangbizi Reservoir Following the left bank of Chaoyang City flood control standards for the 40-year event, other than Daling River Park section of 5 years of a dike,oakley brillen, but are no embankment. Results of the original design, the reservoir after the completion of urban flood control standard will enable sunrise once in 40 years by the increase in 50 years, and after changing the way the use of the flood, urban flood control standard will enable sun once in the 40 years up to hundred years, the calculation, without increasing the input of any work under the premise of flood control benefits for many years an average increase of 51.47 million yuan,converse all star, the effect is very significant. [Received Date] 2008-01 A o4 [Author] Tengde Wei (1966 a) Male, Liaoning Changtu, senior engineer, engaged in water conservancy construction and management.