水電站技改工程可行性研究報(bào)告

水電站技改工程可行性研究報(bào)告1.1概述 11.2水文氣象 11.3工程地質(zhì) 21.4工程任務(wù)和規(guī)模 41.5工程布置及建筑物 41.6金屬結(jié)構(gòu) 61.7水力機(jī)械及電氣設(shè)備 61.8水庫(kù)淹沒(méi)處理及工程永久占地 71.9工程施工 71.10工程估算 71.11經(jīng)濟(jì)評(píng)價(jià) 82.1流域概況 2.2氣象 2.3水文基本資料 2.4徑流 2.5洪水 292.6泥沙及其他 323.1區(qū)域地質(zhì)概況 363.2水庫(kù)區(qū)工程地質(zhì)條件 383.3壩址區(qū)工程地質(zhì)條件及壩址比選 383.3.5壩址的選擇 403.4下壩線的主要工程地質(zhì)問(wèn)題及評(píng)價(jià) 423.5發(fā)電廠房工程地質(zhì)問(wèn)題及評(píng)價(jià) 443.6天然建筑材料 444.1社會(huì)經(jīng)濟(jì)概況與用電預(yù)測(cè) 464.2工程改造的必要性與總體改造方案 534.3流域規(guī)劃情況 554.4洪水計(jì)算 554.5徑流調(diào)節(jié)計(jì)算 574.6正常高水位和尾水位的確定 624.7發(fā)電死水位的確定 624.8裝機(jī)容量的選擇 624.9水輪機(jī)額定水頭及機(jī)型選擇 634.10水庫(kù)運(yùn)行方式與水庫(kù)回水 645.1設(shè)計(jì)依據(jù) 655.2工程等別與防洪標(biāo)準(zhǔn) 665.3工程選址 675.4樞紐總體布置 725.5主要建筑物 736.1庫(kù)區(qū)概況及淹沒(méi)占用范圍 786.2淹沒(méi)標(biāo)準(zhǔn)及淹沒(méi)占用主要實(shí)物指標(biāo) 796.3土地淹沒(méi)征用補(bǔ)償原則 797.1水力機(jī)械及附屬設(shè)備 807.2輔助機(jī)械設(shè)備 827.3水電站與電力系統(tǒng)的連接 837.4電氣主接線 837.5主要電氣設(shè)備 847.6消防及其它 847.7金屬結(jié)構(gòu) 858.1施工條件 878.2施工導(dǎo)流 888.3施工總布置及總進(jìn)度 909.1工程管理 939.2環(huán)境保護(hù)設(shè)計(jì) 939.3水土保持設(shè)計(jì) 9510.1編制說(shuō)明 9910.2估算表 10011.1概述 10911.2投資估算 10911.3財(cái)務(wù)經(jīng)濟(jì)評(píng)價(jià) 10911.4財(cái)務(wù)經(jīng)濟(jì)指標(biāo)計(jì)算 11.5財(cái)務(wù)經(jīng)濟(jì)評(píng)價(jià) 1綜合說(shuō)明及結(jié)論面積為210km2，設(shè)計(jì)水頭6.3我公司于二○○六年五月接受業(yè)主委托進(jìn)行XX電站技改工程XX水、XX水后，又折向東北流至司前匯合司前水，在馬坳附近流流域水能資源較豐富，干流理論蘊(yùn)藏量12.2mw，可開(kāi)發(fā)量XX水電樞紐工程壩址下游12km處有國(guó)家水文測(cè)站—XX水文端最低氣溫-11.6℃,多年平均相對(duì)濕度79徑流、洪水系列從1957年～2002年共46年，壩址多年平均流量1.38m3/s，壩址設(shè)計(jì)洪水成果：設(shè)計(jì)洪水標(biāo)準(zhǔn)(p=5%)時(shí)洪峰流量為造帶之中，區(qū)內(nèi)褶皺，斷裂較發(fā)育，根據(jù)《中國(guó)地震動(dòng)參數(shù)區(qū)劃圖》（GB18306-2001本區(qū)相應(yīng)地震設(shè)防烈度為Ⅵ度，動(dòng)峰值加速度等庫(kù)區(qū)河谷狹窄，河曲發(fā)育。初擬正常高水位167.41m時(shí)，水庫(kù)回發(fā)電廠房位于大壩左端非溢流段下游30m，上部覆蓋層厚1.5~2.5m，為粗砂（礫）及卵石，下部為強(qiáng)風(fēng)化砂質(zhì)板巖，厚2～4m，底塊石料：初選壩址上游500米左岸料場(chǎng)，料場(chǎng)巖性為新民組石英水位(P=1%)172.51m，總庫(kù)容為30.50×104m3，電站裝機(jī)容量為XX水電站工程效益主要為發(fā)電效益，電站多年平均年發(fā)電各建筑物的相應(yīng)運(yùn)行洪水標(biāo)準(zhǔn)為：大壩按20年一遇洪水設(shè)計(jì)，100年一遇洪水校核；發(fā)電廠房按20年一遇洪水設(shè)計(jì)，50年一遇×寬），電站裝機(jī)容量2×320KW。升壓站采用戶外式，布置在廠房設(shè)計(jì)水頭6.30m，選用軸流機(jī)型，立式布置。水輪機(jī)型號(hào)為ZD級(jí)LGJ—35線路輸送電能，輸電線路長(zhǎng)4.0KM，電網(wǎng)接入點(diǎn)為XX鎮(zhèn)接地體采用自然接地體，接地電阻小于4Ω。備，9月初完成圍堰填筑工作，開(kāi)始?jí)误w施工，至次年3月完成大壩167.410m高程以下工作量及廠房土建。次年4-8月完成大壩掃尾、機(jī)XX電站工程總投資為363.52萬(wàn)元，靜態(tài)總投資363.52萬(wàn)元，各序號(hào)名稱(chēng)單位數(shù)量一水文1全流域km2956.0壩址以上流域面積km22102利用的水文系列年限年441958～2001年3多年平均年徑流量108m3徑流深935mm4代表性流量多年平均流量m3/s6.25設(shè)計(jì)洪水標(biāo)準(zhǔn)及流量P=5%m3/s校核洪水標(biāo)準(zhǔn)及流量P=1%m3/s設(shè)計(jì)洪水標(biāo)準(zhǔn)及流量P=5%m3/s校核洪水標(biāo)準(zhǔn)及流量P=1%m3/s二水庫(kù)1水庫(kù)水位正常蓄水位m167.41發(fā)電死水位m167.21設(shè)計(jì)洪水位m171.17P=5%校核洪水位m172.512正常蓄水位時(shí)水庫(kù)面積104m28.43回水長(zhǎng)度km4水庫(kù)容積總庫(kù)容104m330.5正常蓄水位以下庫(kù)容發(fā)電調(diào)節(jié)庫(kù)容104m32.5發(fā)電死庫(kù)容104m35水庫(kù)調(diào)節(jié)特性%無(wú)調(diào)節(jié)序號(hào)名稱(chēng)單位數(shù)量備注三大壩下泄流量及相應(yīng)下游水位大壩1設(shè)計(jì)洪水位時(shí)最大泄量m3/s相應(yīng)下游水位m163.332校核洪水位時(shí)最大泄量m3/s相應(yīng)下游水位m164.50四工程效益指標(biāo)裝機(jī)容量kw640多年平均年發(fā)電量202.42年利用小時(shí)數(shù)h3163五淹沒(méi)損失及工程永久占地1淹沒(méi)河灘地畝2.52淹沒(méi)房屋m23工程永久占地畝六主要建筑物及設(shè)備1大壩型式漿砌塊石重力壩地基特性砂質(zhì)板巖溢流壩段長(zhǎng)度m60消能方式挑流溢流壩頂高程m167.41最大壩高m序號(hào)名稱(chēng)單位數(shù)量備注2壓力管道型式明鋼管單管長(zhǎng)度m302根m管厚mm83廠房型式鋼筋砼結(jié)構(gòu)地基特性砂質(zhì)板巖主廠房尺寸（長(zhǎng)×寬×高）m12.5×7.0×5.5水輪機(jī)安裝高程m604.504開(kāi)關(guān)站型式戶外式地基特性砂質(zhì)板巖面積（長(zhǎng)×寬）M2648×85主要機(jī)電設(shè)備水輪機(jī)臺(tái)數(shù)臺(tái)2型號(hào)ZD680－LH－120額定出力kw358額定轉(zhuǎn)速r/min333.3序號(hào)名稱(chēng)單位數(shù)量備注最大工作水頭m6.5最小工作水頭m6.0額定水頭m6.3額定流量m2/s6.5發(fā)電機(jī)臺(tái)數(shù)臺(tái)2型號(hào)SFW320-18/1730單機(jī)容量kw320發(fā)電機(jī)功率因素0.8額定電壓kv0.4主變S9—800/10.5/0.4起重機(jī)t5電動(dòng)葫蘆6輸電線kv回路線1輸電距離km4七施工1主體工程主要工程量土方開(kāi)挖m33550石方開(kāi)挖m3705漿砌塊石m34380砼和鋼筋砼m3鋼筋制安t33.25金屬結(jié)構(gòu)安裝t2主要建筑材料木材m325水泥t980序號(hào)名稱(chēng)單位數(shù)量備注砂m32150礫石m39503施工臨時(shí)房屋m24施工導(dǎo)流底孔導(dǎo)流5施工占地畝6施工期限投產(chǎn)工期月總工期年1八經(jīng)濟(jì)指標(biāo)1靜態(tài)總投資萬(wàn)元363.522總投資萬(wàn)元363.52其中：建筑工程萬(wàn)元128.82機(jī)電設(shè)備及安裝工程萬(wàn)元98.48金屬結(jié)構(gòu)設(shè)備及安裝工程萬(wàn)元34.43臨時(shí)施工工程萬(wàn)元6.73水庫(kù)淹沒(méi)處理萬(wàn)元其它費(fèi)用萬(wàn)元47.01基本預(yù)備費(fèi)萬(wàn)元33.003經(jīng)濟(jì)指標(biāo)水電站單位千瓦投資元/kw5680單位電度投資元/kwh2財(cái)務(wù)內(nèi)部收益率%上網(wǎng)電價(jià)元/kwh0.31投資回收年限年含建設(shè)期2水文氣象一條較大支流，由XX水、XX水、XX水和司前水匯合而成，其中XX水為XX水的干流。XX水西北隔XX山脈與長(zhǎng)XX岸支流陸水匯合XX水、XX水后，又折向東北流，至司前匯合司前水，在馬坳XX水流域面積448.85平方公里。河道干流總長(zhǎng)69.8公里，平均坡片農(nóng)田。流域水能資源較豐富，其中干流理論蘊(yùn)藏量1.22萬(wàn)千瓦，常見(jiàn)，遭臺(tái)風(fēng)雨的機(jī)會(huì)甚少。5～6月份太平洋副熱帶高壓穩(wěn)定在北XX壩址以上流域內(nèi)無(wú)氣象臺(tái)站，據(jù)相距較近的XX縣氣象站虬津、XX和XX等站，這些測(cè)站均為國(guó)家基本水文觀測(cè)站，水文資殿流量站，觀測(cè)水位、流量、降水量等，1958年增測(cè)含沙量，1963年增測(cè)水化、水溫，1966年改為XX水文站。該站測(cè)驗(yàn)河段順直，XX站為XX水流域控制站，XX站為XX水上游控制站，兩站XX站具有1958年-2001年共44年的實(shí)測(cè)XX水文站在1958-2001年之間其上游未修建大中型蓄、引、提水XX水文站1958年～2001年各年的年均流量XX水文站歷年平均流量統(tǒng)計(jì)表年份XX站平均流量3/s)排序經(jīng)驗(yàn)頻率年份XX站平均流量3/s)排序經(jīng)驗(yàn)頻率9.3551.81819.9944.449.2657.78829.4448.89607.064088.8983613.33617.9775.56847.0166.67628.8662.22857.4184.44636.124395.56867.6877.78649.3255.56879.3453.33657.55808828.8966408935.566748.89908.9860684.324497.789133.336924.44926.864191.11817.789322.227.4282.2294715.567.1986.679524.44511.119637.788.4271.119726.6731.119812.2242.229936.679008.7664.448.4368.89017.9973.336.834293.33809.5846.67XX水文站豐水年（1969年）逐日平均流量一月二月三月五月六月七月八月九月十月十一月十二月3.053.054.258.788.412.22188.013.054.902.772.592.772.774.257.216.292.2263.042.9610.724.442.772.592.402.773.976.294.712.5923.2016.087.764.252.772.592.132.593.799.154.712.9615.1615.168.413.972.592.590.742.773.517.7632.073.3323.9410.726.293.792.592.593.513.056.0110.442.5929.7616.556.013.332.772.775.182.964.905.3629.2112.665.363.052.772.777.215.363.973.973.0530.877.495.182.962.592.597.765.733.053.0512.6680.326.934.902.772.402.402.406.564.442.402.779.1549.5452.874.712.592.402.5947.795.363.97158.067.4922.0944.464.252.592.222.5912.665.363.5172.934.7147.7069.603.792.402.402.406.294.903.0516.922.7742.2452.873.512.222.962.404.713.792.779.982.2220.2421.073.332.968.132.403.513.332.777.76106.0211.093.053.338.782.403.052.962.777.212.77197.077.212.593.057.762.402.772.592.596.293.79420.015.732.402.966.562.402.598.132.404.253.0571.544.712.222.774.442.402.4015.622.222.1386.333.0532.074.252.402.773.972.222.4011.922.222.9655.642.4022.657.212.592.593.512.222.226.563.053.9716.0813.594.712.403.793.332.132.225.184.903.0544.372.139.613.5111.095.733.052.222.134.4416.552.2253.805.558.413.054.7115.072.962.222.223.9711.098.4119.23130.987.493.058.1310.442.962.222.593.796.9316.559.9896.786.0166.099.065.182.772.222.403.975.3610.446.9330.875.1832.8111.094.712.772.402.223.79150.027.766.0116.926.2912.296.293.512.592.592.403.7947.0540.764.9013.225.187.765.363.052.592.592.590.0057.5926.903.51202.064.7114.336.292.962.592.402.960.0021.6311.922.9638.274.2551.395.362.962.592.403.510.0013.130.002.590.003.5116.920.002.770.002.40一月二月三月五月六月七月八月九月十月十一月十二月0.180.180.250.520.490.1311.060.180.070.290.160.150.160.160.250.420.370.133.710.170.630.260.160.150.140.160.230.370.280.150.950.460.250.160.150.130.150.220.540.280.170.890.890.490.230.150.150.040.160.210.460.200.630.370.220.150.150.090.210.180.350.610.150.970.350.200.160.160.080.300.170.290.320.110.740.320.180.160.160.080.420.320.230.230.180.440.300.170.150.150.080.460.340.180.180.744.730.410.290.160.140.140.140.390.260.140.160.542.913.110.280.150.140.152.810.320.230.119.300.442.620.250.150.130.150.740.320.210.094.290.282.814.090.220.140.140.140.370.290.180.080.162.493.110.210.130.170.140.280.220.160.080.590.130.200.170.480.140.210.200.160.070.460.116.240.650.180.200.520.140.180.170.160.070.420.1611.590.420.150.180.460.140.160.150.150.080.370.2224.710.340.140.170.390.140.150.480.140.080.250.184.210.280.130.160.260.140.140.920.130.135.080.180.250.140.160.230.130.140.700.130.173.270.140.420.150.150.210.130.130.390.180.230.950.110.800.280.140.220.200.130.130.300.290.182.610.130.570.210.650.340.180.130.130.260.970.133.160.330.490.180.280.890.170.130.130.230.650.497.710.440.180.480.610.170.130.150.220.410.970.595.690.353.890.530.300.160.130.140.230.320.610.410.300.650.280.160.140.130.228.830.460.350.370.720.370.210.150.150.140.222.772.400.290.780.300.460.320.180.150.150.150.003.390.2111.890.280.840.370.170.150.140.170.000.700.172.250.253.020.320.170.150.140.210.000.770.000.150.000.210.000.160.000.14XX站平均流量（m3/s）XX站平均流量（m3/s）XX站平均流量（m3/s）XX站平均流量（m3/s）月旬月旬1上20.31.1277上53.329.582中8.834.901中98.1454.468下2.505下6.743.7412上4.422.4538上14.4498.019中6.393.546中22.82112.666下4.4482.468下19.63810.8993上4.1382.2979上7.0843.932中2.841.576中3.0231.678下30.65517.013下6.9853.8774上5.9673.312上3.6092.003中1.6060.891中2.7581.531下13.2037.328下5.462.035上8.1824.541上2.6331.461中42.42723.547中5.0872.823下15.4847.093下2.8071.5586上4.2832.377上2.5981.442中3.423中2.4021.333下53.86729.896下2.3561.308一月二月三月五月六月七月八月九月十月十一月十二月2.503.1410.8121.0771.452.592.132.313.142.962.682.313.1410.8166.1854.543.052.962.962.503.427.5820.6121.073.330.748.412.962.503.425.9211.1824.773.602.1312.482.962.504.165.3673.3980.793.606.937.212.032.962.5030.785.0833.65108.0512.395.274.812.032.962.5016.644.1615.7147.705.272.873.602.032.682.508.233.6013.4025.883.603.142.032.682.035.643.1423.2046.222.1314.332.962.032.682.034.813.1470.9983.285.272.683.142.682.034.163.1454.7253.982.592.503.142.682.032.313.6010.9126.0743.912.312.132.313.602.684.163.1441.0416.0835.032.593.602.313.142.684.163.1457.4010.4431.243.334.622.312.963.703.142.9633.097.5833.745.273.603.6020.704.162.682.9617.566.2919.044.072.592.9616.083.602.502.6812.114.6225.793.056.8414.233.602.502.508.603.8886.052.137.866.848.973.142.502.315.923.6046.3111.185.085.923.142.312.035.643.6027.185.270.655.085.362.962.316.197.8635.4982.453.050.834.165.362.962.315.3611.6533.0089.382.1321.073.609.982.682.682.034.8124.3119.6040.7643.813.147.212.682.314.446.8413.4013.4018.1240.212.965.362.682.032.313.429.6116.649.159.9824.492.964.812.682.682.502.688.2337.256.936.934.0711.742.684.162.682.682.504.8110.4447.705.555.273.426.842.683.602.682.312.318.237.2117.564.344.075.275.922.503.602.682.312.310.004.8111.183.603.052.595.362.503.142.682.312.310.004.1611.653.052.594.624.162.313.142.682.502.960.003.600.002.870.003.603.420.002.960.002.68一月二月三月五月六月七月八月九月十月十一月十二月0.150.180.644.200.150.130.140.180.110.170.160.140.180.643.893.210.180.110.110.170.110.170.150.110.200.450.200.100.040.490.110.170.150.110.200.350.660.210.100.130.730.110.170.150.110.240.324.324.750.210.080.410.420.120.170.150.110.306.360.730.080.310.280.120.170.150.110.980.240.922.810.310.080.170.210.120.160.150.110.480.210.790.210.080.110.180.120.160.120.110.330.182.720.130.840.090.170.120.160.120.110.280.184.184.900.100.310.090.160.180.160.120.110.240.183.223.180.100.150.080.150.180.160.120.140.210.642.580.140.130.070.140.210.160.110.240.182.410.952.060.150.210.060.140.180.160.110.240.183.380.610.200.270.060.140.170.220.110.180.170.450.310.210.060.210.240.110.160.170.370.240.150.060.170.950.210.110.150.160.710.270.180.110.060.400.840.210.110.150.150.510.235.060.130.460.060.400.530.180.110.150.140.350.212.720.090.660.060.300.350.180.100.140.120.330.210.080.310.040.300.320.170.100.140.080.360.462.094.850.180.050.240.320.170.100.140.080.320.695.260.130.210.590.160.110.160.120.282.400.102.580.180.420.160.110.140.260.400.790.790.092.370.170.320.160.120.140.200.570.980.540.590.100.170.280.160.160.150.160.482.190.410.410.240.690.160.240.160.160.150.280.612.810.330.310.200.400.160.210.160.140.140.480.420.260.240.310.350.150.210.160.140.140.000.280.660.210.180.150.320.150.180.160.140.140.000.240.690.180.150.270.240.140.180.160.150.170.000.210.000.170.000.210.200.000.170.000.16XX站平均流量（m3/s）XX站平均流量（m3/s）XX站平均流量（m3/s）XX站平均流量（m3/s）月旬月旬1上7上3.25中2.81中4.532.51下2.42下3.072上8.334.628上2.81中2.95中0.58下3.55下15.268.473上5.963.319上5.142.85中19.5410.84中3.972.20下6.473.59下2.954上34.9419.39上2.08中13.687.59中8.144.67下19.9111.05下4.842.695上56.3731.29上2.85中40.2122.32中3.25下12.466.92下2.746上4.132.29上2.39中2.65中下26.2614.57下2.26一月二月三月五月六月七月八月九月十月十一月十二月2.132.409.613.054.8114.973.054.814.533.242.966.382.132.1313.772.776.198.322.774.3417.102.962.964.712.772.1360.542.595.825.362.592.4026.992.962.594.162.402.7740.582.404.534.162.032.9624.032.772.593.512.4036.1445.943.052.773.246.389.432.592.133.242.4048.0639.383.052.7717.756.192.592.132.962.2214.9730.134.536.3814.4215.162.592.132.772.405.7333.9239.192.134.716.4724.492.592.312.593.1419.6914.512.59130.054.5325.052.592.312.594.162.7711.837.585.3648.806.199.432.592.772.593.605.368.697.5830.7819.238.326.842.314.712.592.964.166.7510.9118.1223.8519.975.272.133.242.592.773.7923.1116.826.7531.898.695.822.132.772.592.594.1620.2414.884.7124.030.925.827.954.442.312.409.0621.8123.394.1612.200.743.606.386.752.132.4015.5317.109.436.387.580.742.774.713.794.162.2211.2810.917.584.715.080.742.773.798.326.382.137.587.9513.4069.323.600.653.423.245.364.162.135.0834.5717.0825.602.776.842.966.383.512.134.4462.9515.1613.592.035.552.9618.024.712.133.7943.8142.7010.170.924.342.779.435.362.133.2435.2224.4918.390.742.962.592.595.734.163.2431.8912.2010.910.742.222.593.514.444.162.7721.818.696.380.742.032.313.793.793.792.3114.1439.014.442.593.244.163.243.512.319.8035.313.244.812.599.432.962.963.247.2117.102.593.242.595.362.592.963.245.279.805.272.773.792.592.963.242.400.004.817.214.534.073.242.594.162.963.420.003.885.273.794.073.056.842.962.5910.172.962.770.003.420.0023.020.002.776.190.002.770.002.96一月二月三月五月六月七月八月九月十月十一月十二月0.130.140.570.180.280.880.180.280.270.190.170.380.130.130.810.160.360.490.160.260.170.170.280.160.133.560.150.340.320.150.140.170.150.240.140.162.390.140.270.240.120.170.160.150.210.142.132.700.180.160.190.100.380.550.150.130.190.142.832.320.180.110.160.080.360.150.130.170.130.880.270.110.380.070.850.890.150.130.160.140.342.002.310.130.280.060.380.150.140.150.180.110.850.157.650.060.270.150.140.150.240.160.700.450.322.870.090.360.550.150.160.150.210.320.510.450.090.490.400.140.280.150.170.240.400.640.080.310.130.190.150.160.220.990.400.060.510.340.130.160.150.150.240.880.280.050.340.470.110.260.140.140.530.240.720.040.210.380.110.400.130.140.910.550.380.450.040.160.280.110.220.240.130.660.640.450.280.300.040.160.220.110.490.380.130.450.470.794.080.210.040.200.190.110.320.240.130.302.030.160.060.400.170.110.380.210.130.263.700.890.800.120.080.330.170.110.280.130.222.582.510.600.110.050.260.160.110.550.320.130.192.070.100.040.170.150.150.340.240.110.190.720.640.100.040.130.150.210.260.240.110.160.510.380.090.040.120.140.220.220.220.110.140.832.290.260.100.070.150.190.240.190.210.110.140.582.080.190.090.280.150.550.170.170.190.100.110.420.150.190.100.150.320.150.170.190.100.110.310.580.110.310.080.160.220.150.170.190.140.000.280.420.110.270.080.240.190.150.240.170.200.000.230.310.220.240.180.400.170.150.600.170.160.000.200.000.000.160.360.000.160.000.17XX站平均流量（m3/s）XX站平均流量（m3/s）XX站平均流量（m3/s）XX站平均流量（m3/s）月旬月旬1上2.6071.4477上1.8971.053中2.5521.400中1.0010.561下2.4051.335下1.7870.9922上11.8846.5968上7.013.891中6.6033.665中6.7873.767下2.7151.507下3.5411.9653上30.47616.9149上16.2399.013中21.39811.876中5.0142.783下16.4759.144下3.8322.1274上8.2784.594上2.731.515中13.7817.648中2.0011.111下20.18311.202下2.9071.6145上3.8142.117上2.5031.389中18.42110.224中6.3843.543下7.8884.378下4.9972.7736上22.87612.696上3.5491.970中13.2167.335中3.5141.950下2.7241.512下3.6152.006生時(shí)期主要是4—7月，6月發(fā)生的次數(shù)最多。約占37.8%，其次是4月和5月，分別占21.6%和18.9%。從洪水過(guò)程形狀來(lái)看，單峰型居多，nQ參mF參—XX站集雨面積（km2）年份XX站洪峰流量（m3/s）XX電站壩址洪鋒流量（m3/s）排序經(jīng)驗(yàn)頻率年份XX站洪峰流量（m3/s）壩址洪鋒流量（m3/s）排序經(jīng)驗(yàn)頻率584293.33432483066.75960743928.94963582146.7604497.82114088.9614395.695436.7624713402555.64353142760.0634543282657.82243986.76456941135.62743782.2652243884.42892093577.8664953582248.988864276724.43082233271.1684943572351.19012.26979057189171151424.4703312393168.9923012173373.3714191.19359142733.3725133712044.49454839642.27374459565947626.77471251422.2962922113475.675713515920.0973662642964.4764273082862.29859242831.17778048.9997446784773452453.3002733680.07956941137.80156140540.0 CS=2.629CV頻率（%）0.20.51252050流量（m3/s）2220775543273根據(jù)水利水電工程施工組織設(shè)計(jì)規(guī)范（SDJ338－89）之規(guī)定，施工期洪水按5～3年一遇洪水考慮，本工程按3年一遇洪峰流量為流量的30%，因此3年一遇枯水期洪水按3年一遇洪峰流量的30%水位下泄流量0262437635893水位下泄流量0262437635893水位流量00.572.373.745.738.6711.8518.0821.5125.2128.6432.463工程地質(zhì)安樂(lè)林組上段（Ptbn2a2底部為石英砂新民組（Ptbn2x下部為礫巖、含礫砂巖及含礫板巖，上部為巖漿巖：區(qū)域西部和西南部出露燕山早期第二階段巖漿巖，為云母花崗閃長(zhǎng)巖（r52(2)與前震旦系板溪群呈侵入接觸關(guān)系。上述本區(qū)相應(yīng)地震設(shè)防烈度為Ⅵ度，動(dòng)峰值加速度等于0.05g，可不進(jìn)行庫(kù)區(qū)河谷狹窄，河曲發(fā)育，初擬正常蓄水位為167.41m時(shí)，水庫(kù)址處，下壩線位于XX鎮(zhèn)XX村X(qián)X電站原壩址下游約約600mXX堰址第四系（Q4壩區(qū)第四系不發(fā)育，一般厚1～2米，局部可超過(guò)第四系全新統(tǒng)沖積層（alQ4沿河分布，構(gòu)成不對(duì)稱(chēng)的新月形不好、礫卵石以石英砂巖為主，呈滾園狀，厚度2-4米；一級(jí)階地沖積物具二元結(jié)構(gòu)，下部為松散粗砂、礫石層，厚約2米，上部為黑褐前震旦系板溪上亞新民組（Pt板溪群上亞群新民組代號(hào)為Ptbn2x為了方便，本報(bào)告書(shū)中壩區(qū)工程地質(zhì)圖等圖件均用P基底式膠結(jié)，膠結(jié)物為泥質(zhì)（多重結(jié)晶為云母膠結(jié)。巖石堅(jiān)走向北東（北37°~40°東）和走向北北東（北5°東）三組壓性結(jié)口位于攔水壩前右側(cè)山坡坡腳，隧洞全長(zhǎng)120m，進(jìn)口底板高程為至左岸廠房發(fā)電，壓力鋼管全長(zhǎng)20m。下壩線位于XX鎮(zhèn)XX村X(qián)X電站原壩址形呈階梯形臺(tái)地，高程在168.75m～1均為弱風(fēng)化砂質(zhì)板巖，其承載力在2.0mpa，無(wú)不利地質(zhì)構(gòu)造。經(jīng)過(guò)般厚1.5～3.0m；弱風(fēng)化帶，河床中部厚2～5m左右，壩肩兩側(cè)厚5~本工程擋水壩最大壩高壩為13.2m，為低壩，結(jié)合各風(fēng)化巖體的各部位的建議開(kāi)挖深度（含覆蓋層）分述如下：左岸2.50～3.00m、擋水壩及發(fā)電廠房將座落在前震旦系板溪上亞新民組砂巖板巖性度比力%fCf’c’EωF兩岸壩肩節(jié)理裂隙發(fā)育，其中以走向SE125°傾向SW傾角70°~下游河床表層基巖為弱風(fēng)化，但其上部0-5米基巖節(jié)理裂隙較發(fā)速（水深≥3m取5.5.0-6.5m/s，故建議對(duì)壩下沖刷段進(jìn)行適當(dāng)防發(fā)電廠房位于大壩左端非溢流段下游30m，上部覆蓋層厚1.5~2.5m，為粗砂（礫）及卵石，下部為強(qiáng)風(fēng)化砂質(zhì)板巖，厚2～4m，底建議開(kāi)挖邊坡為:XX水電站工程中提出天然建筑材料用量如下：塊石4000m3.6.1塊石料：初選壩址上游500米左岸料場(chǎng)，料場(chǎng)巖性為新民3.6.2砂卵料：礫（卵）石料及砂料可從壩址下游4kmXX村河4工程任務(wù)和規(guī)?！?。年平均降雨量1575.5mm，上半年降雨多，一般占全年70%，20.84萬(wàn)畝，難以開(kāi)發(fā)的裸露巖山、高山、草甸、河灘、沙洲67.18XX歷史悠久，名人輩出。商代為艾候國(guó)，宋時(shí)稱(chēng)XX縣，國(guó)史XX縣轄36個(gè)鄉(xiāng)鎮(zhèn)，449個(gè)行政村，5531個(gè)村民小組，186972足進(jìn)步。至“十五”期末，全縣實(shí)現(xiàn)生產(chǎn)總值為28.9億元，年均遞實(shí)現(xiàn)工農(nóng)業(yè)總產(chǎn)值43.65億元，年均遞增22.9%；農(nóng)業(yè)總產(chǎn)值12.45但是，XX縣是一個(gè)山區(qū)大縣、國(guó)定貧困縣，也是個(gè)農(nóng)業(yè)大縣，平均降雨量1575.5毫米?？h內(nèi)河流眾多，以XX為主流，至三都鎮(zhèn)資源理論蘊(yùn)藏量達(dá)390MW，可開(kāi)發(fā)量200M年均發(fā)電量40997×104kw.h，(其中省屬XX電站、抱子石電站共計(jì)河流名稱(chēng)集雨面積多年平均流量（m3/s）河道長(zhǎng)度（km）天然落差（m）理論蘊(yùn)藏量規(guī)劃可開(kāi)發(fā)量（全縣內(nèi)）已開(kāi)發(fā)量（包括支流）干流裝機(jī)容量年發(fā)電量（萬(wàn)kw.h）容量基準(zhǔn)年發(fā)電量（萬(wàn)度）XX干流5551152.72199.315.04713.593600010335026836XX水及支流49.25136.755.67.1642.82610275165606125渣津水XX河745240上衫河80026085西港水465司前水47695626.3078.62.7240.824654610黃沙水514.314.1565.33.2052.52968592693287溪口水48513.3462.9116.52.2140.95240674060汩羅水2635759XX水2840780黃坳水4100合計(jì)20.7086317914746840997注：表中規(guī)劃可開(kāi)發(fā)水能系幾條已規(guī)劃流域干流水能資源可開(kāi)發(fā)量。裝機(jī)容量和發(fā)電量計(jì)入XX縣城鄉(xiāng)經(jīng)濟(jì)和社會(huì)產(chǎn)業(yè)結(jié)構(gòu)的變化和城區(qū)建設(shè)發(fā)展，電用電量、人均最高負(fù)荷是反映縣城用電水平的一個(gè)重要指標(biāo)，XX縣出了XX縣電力市場(chǎng)還有較大的發(fā)展空間。情況也隨著產(chǎn)業(yè)結(jié)構(gòu)的調(diào)整而發(fā)生了變化。2004年間XX縣在用電年份項(xiàng)目2004200520062007200820092010201520203104335622391484310247412521545736984294112805年均增長(zhǎng)率14.7510.008.006.00負(fù)荷（MW）86.296．32112.3121.3141.5207.9278.3年均增長(zhǎng)率11.748.008.006.00序號(hào)企業(yè)名稱(chēng)預(yù)計(jì)設(shè)備裝機(jī)容量（kVA）用電最高負(fù)荷（kW）年用電量（萬(wàn)kWh）投產(chǎn)時(shí)間1XX贛北礦業(yè)深加工10000900032502005-20062洛克啤酒有限責(zé)任公司9500850034002006-20093福寧礦業(yè)有限責(zé)任公司8500750028882005-20064湯橋鳳凰山莊2800250092220065水泥廠二期擴(kuò)建600048002005-20066昆山鎢礦500040002005-20067香爐山鎢礦口新建三處12000960034562005-20088土龍山金礦8002882005-20069上海萬(wàn)民林業(yè)產(chǎn)品深加工600048002008-2010布甲鄉(xiāng)大理石項(xiàng)目20005762005-2007全豐金礦4602005-2008全豐石英廠600048002005-2009合計(jì)704005918021864--年份項(xiàng)目2004200520062007200820092010電量（萬(wàn)kWh）88081330015317176392031323393年均增長(zhǎng)率31.13負(fù)荷（MW）34.6643.9750.1372.2684.66年均增長(zhǎng)率26.85年份項(xiàng)目2004200520062007200820092010201520203104338813441305017657050648667375398465124655年均增長(zhǎng)率25.0313.705.954.83負(fù)荷（MW）86.29739250.9315.5年均增長(zhǎng)率22.812.395.734.69最大負(fù)荷利用小時(shí)數(shù)360036653708375337963838388439243951干流以開(kāi)發(fā)水能資源為主要任務(wù)。XX水電水平低，盡管1992年實(shí)施了東電西送工程，但用電需求仍得不到滿足，目前已建成和正在建的電站遠(yuǎn)遠(yuǎn)不能滿足不斷提高的電力需4.5m，建基面弱風(fēng)化基巖。本階段擬將構(gòu)。大壩左岸設(shè)1孔沖沙閘，閘孔尺寸為2.0m×2.0m，閘孔底板高力管布設(shè)形式為兩臺(tái)機(jī)組兩根管的單機(jī)單管供水形式，壓力管全長(zhǎng)發(fā)電廠房位于壩址下游約30m左岸一開(kāi)闊空地，采用鋼筋砼框架結(jié)構(gòu)，廠房平面尺寸為13.50×7.0m（長(zhǎng)×寬），電站裝機(jī)容量2工程改造后，保持原有正常高水位不變，且泄洪寬度由原來(lái)的XX省水利規(guī)劃設(shè)計(jì)院于一九九三年十月對(duì)XX干流及主要支流XX電站是一座以發(fā)電為主的小型水利樞紐工程，水庫(kù)總庫(kù)容3/s,51本工程無(wú)實(shí)測(cè)水文資料，本階段利用參證站(XX站)的徑流資料根據(jù)水輪發(fā)電機(jī)組生產(chǎn)廠家資料，查得水輪機(jī)額定效率為87%，用流量6.5×2=13.0m3/s，由出力公式N=AQ調(diào)H計(jì)算各日出力，從而面積按旬調(diào)節(jié)后得到的各日平均流量和區(qū)間逐日平均流量相加得到個(gè)代表年各日的發(fā)電量（見(jiàn)表4.5.1～3）累加除以3即為該站多年經(jīng)計(jì)算多年平均年發(fā)電量為E多=(221.23+189.59+196.43)×104一月二月三月五月六月七月八月九月十月十一月十二月3157305045826044300215360984441122747313730504471589430021536098374791271431373030440657833028153601076445822701312430174608578330541536010699462826823137299745107716308015360103864478266931892965438661883028153601079744582636330729584308582929821536010523441226163450312842425731306115360101574399261034903154417756663740153601011843802597340530634131564634921536013362436725849258464121661536028101536015360230520203542677746412133153602614153601536022732007355563274608210015360247715360153602253359462164530208115360243815360153602240204639606131449720811536024181536015360222020724006609844712081153602477153601536021882052393460784445206815360254915360153602175204638496065483620551536024961536015360216220333699605253652042153602496153601536021752033366660525104204215360245115360153602188202036342877153608816104881536046331313146603689277915360875112486153604353130465273382627261536086921315215360426813013482344862694153609130107101536042021301350644159268115360970410057153604098174655130378726941536092739842153604039151155273375426811536090849776153604118136664934367026811536011415969815360403913346486936370153601043595501536040071381049343630015360937895611536039741536048693630015360095350392213992036170一月二月三月五月六月七月八月九月十月十一月十二月578047381536015360293223353643210657804738153601536029652322363021065800450915360153602984230940162106580043921536015360300423094303210658524352153601536030042283230239312106773243331536015360362422832185376121066734426815360153603121228320153676208661394228153601536030042283364320865957419615360153602899319736302086589841961536015360287325573611208620032263132481298915360320878228295828235020362223137961096515360317576928165861235021672191153601026015360200832807562816582823502167219115360986215360206033527562816581524222095217815360965915360219732807562908706924552062217814266956815360211232087562862674224162049215813881945015360204031627563136661224162049214513633939815360358075631366240238320492132134449379153603815756301260242383203621121342493791536033977303012598523702343437513305865415360207610179328423434316135728477153602011116093610238942771446775311488413215341425584421136967093132851296032842487461713925679312710118503245243445191536066361249521481095031992584467515360653812377210210604316028264447139906454122932233105383160042771354064011222120441049931270423213572636212188218710414312704192063490211510362031140189.59×104kw.h一月二月三月五月六月七月八月九月十月十一月十二月8093153605726287315360502211149205328158074153605706297115360498912036203426988074153605693294415360485212735203426598119153605680285315360489112526202126131047615360572627291536051331149520082594113181536057262670153605935112662008257489811536058302670153605700118992008256183281536082782683153605139125592008254880541536065352716153605002125982008254820358119153606046291215360511911495200825485073148889719144431017077151023809458325244988147519954135491049675259243698447825244962153601037212746110647325128373744462524498815360102351260210509726492538874563250453341536010836125639674713476937764726249157911536098501272093477134710365845182635549115045971912602917171347103593483727915229148361013115360906670647563554462926355053153601049614078900873249973534470025895007153601025513229895575249063534552326741142613617535224202561335524561081912331593323222548200830942371105841146254042270254820733003237198721121450842257252820922957234593301335649472296259421192918232590241309448632296303120342898230588411180848172296274420082898230587041129347712065230926332008289823050867111110476520132400259420082983228608606109734902259625742008340722860857306260025500202102286196.43×104kw.h同時(shí)根據(jù)年利用小時(shí)數(shù)控制在3500小時(shí)左右時(shí)投資較為經(jīng)濟(jì)的原項(xiàng)目單位裝機(jī)容量(kw)640800保證出力多年平均發(fā)電量萬(wàn)kwh202.42215.57最大水頭m6.506.50最小水頭m6.06.0設(shè)計(jì)水頭m6.36.3水量利用率%76.781.6年利用小時(shí)數(shù)h31632695工程靜態(tài)投資萬(wàn)元363.52376.77單位千瓦投資元/kwh56804710單位電能投資元/kw.h注:表中數(shù)據(jù)為裝機(jī)容量選擇階段成果,各方案比較基礎(chǔ)一致，水頭損失為0.36m。設(shè)備價(jià)格相差不大；各裝機(jī)容量方案經(jīng)濟(jì)指標(biāo)均較好，考慮到800kwXX電站最大凈水頭為6.5m，最小凈水頭為6.0m，設(shè)計(jì)水頭為量為5.8m3/s，確定本電站機(jī)組為二臺(tái)，單機(jī)容量為320kw，總裝機(jī)游洪水將起到削峰作用。水庫(kù)淤積量較大后,可在豐水期全開(kāi)沖砂閘分別為171.17和172.51m。根據(jù)工程的自然地理?xiàng)l件與實(shí)物淹沒(méi)情5工程選址、工程總布置及主要建筑物水庫(kù)特征水位與對(duì)應(yīng)流量:XX電站是一座以發(fā)電為主要效益的水利樞紐工程，水庫(kù)總庫(kù)容表5.2.1洪水重現(xiàn)期（年）正常運(yùn)用（設(shè)計(jì)）非常運(yùn)用校核）大壩（含泄洪、沖沙建筑物）發(fā)電廠房大壩消能防沖建筑物施工導(dǎo)流3（非汛期）上壩線引水渠方案：大壩位于XX鎮(zhèn)XX村X(qián)X電站原壩（XX原XX電站大壩壩型為漿砌塊石重力壩，溢流段布置在河床中間，總泄洪凈寬41m。大壩座落在弱風(fēng)化砂質(zhì)板巖基礎(chǔ)上，溢流段堰下游為1：1的斜坡，與挑流段銜連，大壩底寬11m。挑流鼻坎高程164.41m。大壩上游防滲面板及溢流堰面均為厚30cmC20鋼筋砼，壩體采用M7.5漿砌塊石。電站廠房為河床式，廠房作為擋水建筑物設(shè)在大壩右端，廠房寬9.5米、長(zhǎng)11.5米，屋頂高程1損現(xiàn)象。利用該壩加固，擬拆除溢流面板重新澆筑厚30cm面板，拆除原廠房，在原廠房位置設(shè)1孔沖沙閘，閘孔尺寸為2.0m×2.0m，閘孔底板高程為162.41m，沖沙閘邊墩采用C20鋼筋砼結(jié)構(gòu)，墩厚于攔水壩前右側(cè)山坡坡腳，隧洞全長(zhǎng)120m，共分1段，進(jìn)口底板高端接明渠，渠道全長(zhǎng)310m，共分2段，設(shè)1個(gè)拐點(diǎn)，在渠道未端設(shè)前池，用壓力鋼管引水至右岸廠房發(fā)電，壓力鋼管全長(zhǎng)20m。發(fā)電廠房布置在壩址下游約0.50km右岸一開(kāi)闊空地，廠房平面），站裝機(jī)容量2×320KW。將XX堰拆除，疏通河槽，尾水直接排入主河30cm面板，拆除原廠房，在原廠房位置設(shè)1孔沖沙閘，閘孔尺寸為左岸廠房發(fā)電，壓力鋼管全長(zhǎng)20m。），下壩線位于XX鎮(zhèn)XX村X(qián)X電站原壩址下游約約600mX處，堰頂高程為163.10m，該處河床寬約66m，河床高程158.60m~161.85m，出露基巖巖性為砂質(zhì)板巖，堰上游河床堆積物較多，堰下游河床基巖裸露；右岸岸坡地形呈階梯形臺(tái)地，高程在168.75m~及溢流堰面均采用C25鋼筋砼結(jié)構(gòu)，壩體采用M7.5漿砌塊石。在大壩左岸設(shè)1孔沖沙閘，閘孔尺寸為2.0m×2.0m，閘孔底板高程為162.41m，沖沙閘邊墩采用C20鋼筋砼結(jié)構(gòu)，墩厚2.0m。配20噸啟），排入下游河道，機(jī)組進(jìn)出水流較順暢，電站裝機(jī)容量2×320KW。編號(hào)項(xiàng)目單位比較方案?jìng)渥⑸蠅尉€渠道方案Ⅰ上壩線隧洞方案Ⅱ下壩線方案Ⅲ一特征水位與庫(kù)容1正常蓄水位m167.41167.41167.412設(shè)計(jì)洪水位m173.27173.27171.173校核洪水位m173.99173.99172.514死水位m167.21167.21167.215總庫(kù)容萬(wàn)m325.525.530.56死庫(kù)容萬(wàn)m3887有效庫(kù)容萬(wàn)m32.5二大壩1基本壩型重力壩重力壩重力壩2溢流壩頂高程m167.41167.41167.413最大壩高m4溢流凈寬m434360三引水系統(tǒng)引水形式隧洞+渠道+鋼管隧洞+鋼管鋼管引用流量m3/s隧洞長(zhǎng)度m71904隧洞斷面m4.0×3.54.0×3.505渠道長(zhǎng)度27000四廠房1廠房結(jié)構(gòu)形式砼框架結(jié)構(gòu)砼框架結(jié)構(gòu)砼框架結(jié)構(gòu)2裝機(jī)容量Kw2×3202×3202×3203主廠房平面尺寸m×m13.5×7.013.5×7.013.5×7.0四庫(kù)區(qū)淹沒(méi)1淹沒(méi)河灘地畝002.52工程永久占地畝3淹沒(méi)房屋M300五年發(fā)電Kw.h202.42202.42202.42六工程投資349.95385.42363.52百姓聽(tīng)說(shuō)后迫切希望業(yè)主能把壩址移至XX堰以解決下游的灌溉問(wèn)利用XX堰建壩。置在壩址左岸下游約30米處一開(kāi)闊處，該位置場(chǎng)地開(kāi)闊便于廠區(qū)布XX堰包裹在其中，大壩基礎(chǔ)為弱風(fēng)化砂質(zhì)板巖，壩型為漿塊石。大壩左岸設(shè)1孔沖沙閘，閘孔尺寸為2.0m×2.0m，閘孔底板端非溢流段，鋼管全長(zhǎng)30m，進(jìn)口底高程為16發(fā)電廠房位于壩址下游約30m左岸一開(kāi)闊空地，采用鋼筋砼框架結(jié)構(gòu)，廠房平面尺寸為13.50×7.0m（長(zhǎng)×寬），電站裝機(jī)容量2攔河壩為漿砌塊石重力壩，溢流壩段長(zhǎng)60m，WES溢流壩頂，上公式：Q=mB式中：Q——下泄流量(m3/s);B----溢流寬度為60m;H----溢流壩頂水深m;求得設(shè)計(jì)和校核洪水情況下溢流壩頂過(guò)水深分別為3.76m和公式：2hl=0.0166Wh0----波浪中心線超高（m水庫(kù)正常高水位為167.41m,求得設(shè)計(jì)與校核洪水工況下所需壩攔水壩為漿砌塊石重力壩,底寬7.0m,上游面鉛垂,下游面約為厚C20砼防滲墻，溢流面設(shè)30cm厚C25砼護(hù)面，所有砼內(nèi)均設(shè)φ10@200單層雙向鋼筋網(wǎng)。在溢流段中間及兩端各在左側(cè)非溢流壩底設(shè)沖砂閘一孔，孔口尺寸為2.0×2引水鋼管進(jìn)口不淤積泥沙，在攔水壩的左側(cè)非溢流段設(shè)一孔2.0×廠址工程地質(zhì)條件較好。廠房和大壩進(jìn)水口之間通過(guò)長(zhǎng)30米壓力鋼機(jī)，總裝機(jī)容量為640kw。廠家提供的最重件為水輪機(jī)，選5噸地面6水庫(kù)淹沒(méi)及占用規(guī)劃的重要性及其原有防洪標(biāo)準(zhǔn)，不同淹沒(méi)對(duì)象的設(shè)計(jì)洪水標(biāo)準(zhǔn)采用如7水力機(jī)械、電工及金屬結(jié)構(gòu)由第四章可知，XX電站裝機(jī)容量定為640kw，最大水頭6.5m，設(shè)計(jì)水頭6.3m，最小水頭6.0m。適應(yīng)該水頭與單機(jī)容量水輪機(jī)系列為軸流式。由水輪機(jī)型譜查得，適應(yīng)本工程的轉(zhuǎn)輪型號(hào)為ZD680-最優(yōu)模型轉(zhuǎn)輪效率90.5水機(jī)最優(yōu)原型轉(zhuǎn)輪效率87將以上參數(shù)代入公式，求得水機(jī)轉(zhuǎn)速為360r/min，為了與電機(jī)極數(shù)相適應(yīng)，轉(zhuǎn)速最后取定為333r/min，反求得模型單位轉(zhuǎn)速為5T的起重機(jī)。在屋面梁底的機(jī)組軸線位置安裝一根與廠房縱向等長(zhǎng)電站最小水頭6.0m，從壓力管取水經(jīng)減壓與過(guò)濾后作為廠房的切割機(jī)、砂輪機(jī)、扳手等。在宿舍樓內(nèi)設(shè)工7.3水電站與電力系統(tǒng)的連接發(fā)電機(jī)選型為SFW320—18/1730，最大送網(wǎng)功率為發(fā)電機(jī)額定功線路長(zhǎng)4.0km，接網(wǎng)點(diǎn)為XX變電站。本站以輸送電能至電網(wǎng)為主要于電站以輸送電能為運(yùn)作方式，主變應(yīng)考慮能滿足最大送網(wǎng)功率要求，無(wú)需考慮大網(wǎng)倒送負(fù)荷需要，故主變采用S9—800/10.5/0.4雙按《電力設(shè)備電壓保護(hù)設(shè)計(jì)技術(shù)規(guī)程》配置。10kV升壓站配電選用φ25×3000㎜鍍鋅鋼管，并在鉆好的孔中，灌注接地電阻降阻夜晚燈光照明。本地區(qū)多年平均氣溫16.5度,最低氣溫-11.6度,氣布置，與水平面夾角75度，攔污柵設(shè)計(jì)為鋼結(jié)構(gòu)，采用四面進(jìn)水型閥以方便右岸下游農(nóng)田灌溉。管壁厚均為5mm，采用無(wú)縫鋼管，管長(zhǎng)8施工組織設(shè)計(jì)豐枯期季節(jié)分明，枯水期為7月中旬至次年3月下旬；豐水期為4月上旬至7月中旬。為減少導(dǎo)流圍堰工程量，因此將壩體水下部分施工安本工程為Ⅴ等水電樞紐工程，其主要建筑物為5級(jí)建筑物，依據(jù)為5級(jí)建筑物，導(dǎo)流標(biāo)準(zhǔn)為3年一遇洪水。由前述2.4.5施工期洪水計(jì)壩右岸，截水寬度約40m，采用右岸明渠導(dǎo)流；二期圍堰布置在大壩二期圍堰上游圍堰采用粘土心墻土石壩，堰頂高程163.0m，堰統(tǒng)計(jì)算經(jīng)常性排水流量為270～300m3/h，排水設(shè)備選用潛水電場(chǎng)地主要布置在壩址下游右岸；廠房施工場(chǎng)地布置