某電站可研報(bào)告水文部分

PAGE2水文氣象2.1流域概況××流域位于××省的東南部,北緯26°00′～27°20′,東經(jīng)112°52′～114°07′,跨株洲、郴州、衡陽(yáng)三個(gè)地區(qū)，包括茶陵縣、炎陵縣、安仁縣的全部、攸縣的大部分及資興、永興、衡東的一部分?！痢翞橄嫠囊患?jí)支流，發(fā)源于湘贛交界處井崗山萬(wàn)洋山西麓，流經(jīng)酃縣、茶陵、攸縣至衡東雷溪市注入湘江。河長(zhǎng)296km,流域面積10305km2,占湘水流域面積的11％，流域平均坡降為1.01‰，流域內(nèi)海拔高程50～2000m。地勢(shì)東南高西北低。東以萬(wàn)洋山與贛江支流禾水遂川為界，南起八面山與耒水毗鄰，西鄰耒水中下游以山嶺、蛤蟆口、大山為界,北抵低矮山嶺以婆婆巖、黃土崗等與淥水分界，西北匯入湘江。干流流向大致由東南向西北，整個(gè)流域南北寬而東西窄。根據(jù)流域地貌，可分為上游高山區(qū)，中、下游丘陵低山區(qū)，茶陵縣浣溪以上屬××上游山區(qū)，河谷深切，河床狹窄，河床坡降大，灘險(xiǎn)毗連，跌水與瀑布較多，河床多為巖石及卵石組成，地表植被良好，森林茂密，為我省主要林源之一；浣溪以下河谷開(kāi)闊，水流減緩，河床比降為0.24～1.2‰，海拔一般在70～150m左右，浣溪圩至茶陵城附近為丘陵盆地，沿干流間有較大平地。茶陵城以下至平水圩又為山區(qū)峽谷；平水圩至石峽又為盆地丘陵地區(qū)，兩岸開(kāi)闊，平地較多，石峽至甘溪有一不長(zhǎng)的峽谷段，兩岸高山多在100m以內(nèi)，山勢(shì)不甚整齊，河床多為泥沙，間有少量的卵石，甘溪以下至河口，屬于衡陽(yáng)盆地范圍?！痢亮饔蛎娣e在450km2以上較大支流除源流溆瀨水外共6條，左岸有永樂(lè)江，右岸有河漠水，沔水、茶水、攸水、清江(攸縣)五條，雖左右岸支流分布不均，但永樂(lè)江流域面積較大，故兩岸流域面積相差尚不懸殊。各支流特征值見(jiàn)表2.1。 ××流域支流情況表表2.1河名河漠水沔水茶水攸水清江(攸縣))永樂(lè)江面積(km22)90477590311924782572河長(zhǎng)(km))681006211563210坡降(‰)7.935.631.331.840.871.90茶陵縣城位于××流域中上游,縣城控制斷面龍牲以上流域面積4343km2,占××流域面積42.1％，占龍家山水文站集雨面積的96.2％。2.2氣象××流域位于南嶺北坡，屬于亞熱帶氣候，年內(nèi)4～6月，因冷暖空氣交鋒停滯于南嶺一帶，便開(kāi)始本流域的梅雨季節(jié)，6月以后東亞對(duì)流層鋒逐漸北移，夏季熱帶海洋氣團(tuán)盛行，冬季受中緯度大陸氣團(tuán)控制及冰洋氣團(tuán)影響，本區(qū)亦處于臺(tái)風(fēng)侵襲的邊緣地帶，形成流域春濕秋燥，夏熱冬冷，春夏之間多梅雨。流域內(nèi)暴雨多系氣旋雨，受臺(tái)風(fēng)侵襲形成臺(tái)風(fēng)雨，天氣系統(tǒng)高空為西南低渦，江淮切變線，地面為靜止鋒，暴雨中心常位于流域的東南側(cè)，如攸水、沔水、河漠水的上游一帶。其中黃豐橋、高壟、策源、柏市一帶亦是我省的暴雨中心之一，年最大1d、3d降雨多發(fā)生于4～8月，暴雨歷時(shí)單站一般2～4d，流域2～3d。氣象要素主要依據(jù)茶陵氣象站39年(1957～1995)實(shí)測(cè)資料統(tǒng)計(jì)，最大1d降水270.7mm，發(fā)生在1983年；多年平均降水量1520mm；最大年降水量2250.4mm，發(fā)生在1997年；最小降水量799mm，出現(xiàn)在1963年；多年平均氣溫17.9℃；極端最高氣溫40℃，發(fā)生在1963年；極端最低氣溫-9.9℃，出現(xiàn)在1972年。多年平均日照時(shí)數(shù)1715.9h；多年平均蒸發(fā)量1477.0mm，多年平均風(fēng)速2.6m/s，最大風(fēng)速17.7m/s，風(fēng)向NW，發(fā)生在1978年。2.3水文基本資料干流茶陵段縣城上游有坑口水文站,縣城下游有龍家山水文站,兩站基本情況如下：⑴龍家山水文站該站位于茶陵縣龍牲控制斷面下游21.6km，控制流域面積4515km2，1956年5月1日由××省水文總站設(shè)立。同年6月1日正式觀測(cè)至今，為××中游控制站，流量測(cè)驗(yàn)段尚整齊，單式斷面，兩岸倚山，無(wú)漫溢現(xiàn)象，比降上斷面上游約100m處為彎道，彎道右岸有小溪匯入，比降下斷面下游約400m處有一大沙洲，河床右岸系礫石、左岸系細(xì)沙組成，洪水時(shí)左岸略有沖淤，流量測(cè)驗(yàn)一般采用流速儀施測(cè)，高水用浮標(biāo)測(cè)流，浮標(biāo)系數(shù)采用0.85。建站至今實(shí)測(cè)最高水位為92.74m(56黃海)，發(fā)生在1982年6月17日，相應(yīng)流量為4560m3/s,實(shí)測(cè)水位變幅8.01m。測(cè)站基本水尺斷面于1979年上遷30m，1980年4月又將測(cè)流斷面上遷30m，使基本水尺斷面與測(cè)流斷面合一，上、下比降水尺斷面未變動(dòng)。本站系凍結(jié)基面，換算關(guān)系：凍結(jié)基面-6.11m=56黃海基面。⑵坑口水文站該站1957年1月建于茶陵縣桃坑鄉(xiāng)坑口村，是沔水的控制站，集雨面積692km2，觀測(cè)項(xiàng)目有水位、流量、降雨等。測(cè)驗(yàn)河段約有200m的較順直段，一般中低水位水面寬約40～50m，高水時(shí)近100m寬，在基本水尺斷面上游約150m處有一急彎；斷面下游約1000m有一急灘，成為良好的測(cè)站控制。河床右岸系細(xì)沙組成，左岸系巖石及黃土組成，較堅(jiān)實(shí)，河床底部為卵石，當(dāng)水位到達(dá)88.31m時(shí)，右岸開(kāi)始漫灘，漫灘寬度約30m。流量測(cè)驗(yàn)時(shí)低水多用流速儀施測(cè)，中、高用浮標(biāo)或流速儀水面一點(diǎn)法施測(cè)，浮標(biāo)及水面流速系數(shù)均用0.85。2.3.1龍家山水文站歷年逐月平均流量資料及逐月最大流量資料龍家山站歷年逐月實(shí)測(cè)平均流量資料見(jiàn)表2.3.1.1。龍家山站歷實(shí)測(cè)逐年各月有關(guān)徑流參數(shù)計(jì)算（1月～12月）見(jiàn)表2.3.1.2。龍家山水文站歷年逐年逐月最大流量資料見(jiàn)表2.3.1.3。龍家山站逐年逐月平均流量資料（1月～12月）表2.3.1.1單位：m3/s年份1月2月3月4月5月6月7月8月9月10月11月121956382.0159.072.360.049.631.650.427.2195732.5128.0164.0259.0232.0195.045.863.464.0147.063.345.2195842.889.6111.0161.0337.0245.0109.052.555.848.229.322.5195927.8130.0133.0135.0272.0431.0107.098.5111.031.955.447.4196045.430.2187.0182.0305.0144.051.7259.082.667.275.984.9196142.091.8184.0401.0153.0478.0142.0294.0391.0103.074.756.6196252.733.3113.0170.0282.0610.0235.096.098.770.195.349.2196329.748.677.054.258.845.230.129.927.423.877.637.6196491.082.9177.0305.0161.0363.086.1131.463.650.231.124.9196521.728.566.5145.0150.0155.047.150.747.748.3125.090.5196685.2100.069.9215.0117.0125.0180.043.729.269.737.246.1196731.382.6119.0210.0181.0145.0158.064.051.630.838.932.8196826.150.1137.0183.0136.0632.0354.0121.066.050.081.550.3196987.371.0126.0129.0239.0105.052.9191.065.6113.059.336.3197054.675.0146.0358.0492.0222.0127.0101.0206.0162.076.4152.0197159.570.971.469.1161.0185.042.7107.061.444.831.530.1197224.668.733.1291.0195.0111.038.5177.084.878.0106.0101.01973148.0107.0119.0454.0399.0311.0274.0155.0127.0124.089.447.6197448.1123.058.486.794.8190.0147.0143.049.147.541.545.0197560.196.3254.0291.0576.0259.087.0191.098.9126.0140.080.0197644.159.3122.0247.0217.0316.0347.0153.088.8105.075.643.6197771.469.647.6168.0287.0453.0145.077.258.150.433.229.7197851.033.098.0196.0259.0149.053.569.643.634.028.524.5197933.364.0152.0159.0238.0319.085.990.999.039.526.324.9198030.7123.0130.0340.0389.0102.093.6136.074.558.238.332.3198140.693.0165.0604.0195.0216.0125.0114.075.3122.0172.063.8198245.7170.0136.0187.0269.0515.0113.0151.0132.080.7148.0113.0198399.9216.0349.0289.0403.0436.091.466.160.143.328.327.1198428.741.362.5328.0322.0195.081.087.0150.071.045.340.2198541.7236.0223.0205.0114.0160.074.1118.0120.049.238.535.8198629.856.0107.0185.093.0158.0151.057.932.229.439.724.7198722.431.784.9196.0141.087.861.870.149.8216.0153.079.0198850.6131.0277.0257.0332.0131.056.972.380.538.330.726.4198956.1108.076.0124.0327.0173.0173.059.643.035.632.422.7199059.6114.0177.0301.0165.0190.0148.0120.0117.086.4136.054.0199151.991.9138.6232.1241.5253.5129.8123.787.072.465.752.0199267.5196.0419.0273.0235.0259.0326.076.584.138.230.935.5199355.057.2124.0122.0159.0259.0200.0123.058.658.455.943.1199431.8127.0176.0289.0265.0473.0283.0374.0129.0138.051.8185.01995151.0200.0137.0229.0162.0310.0113.0129.045.480.544.434.9199654.844.5142.0249.0168.0115.091.1382.0105.055.138.234.0合計(jì)2128.003770.005689.999513.119905.11103815330.335080.003564.002968.772692.442133.44平均51.992.0138.8232.0241.6253.2130.0123.986.972.465.752.0龍家山站實(shí)測(cè)逐年各月有關(guān)徑流參數(shù)計(jì)算（1月～12月）表2.3.1.2年份年流量（m3/s）月均流量（m3/s）年徑流量(108m33)月均徑流量(108m33)徑流模數(shù)（公升/秒..km2）徑流深度(mm)195619571439.2200119.933337.82223.15226.5633837.700119581303.7700108.644234.26112.85524.0622758.833119591580.0000131.666741.52223.46029.1622919.655519601514.9900126.244239.81223.31827.9611881.766219612411.1100200.922563.36445.28044.50221403.440419621905.3300158.777550.07114.17335.16661108.99981963539.900044.992214.18991.1829.965314.255419641567.2200130.600041.18663.43228.9266912.20041965976.000081.333325.64992.13718.0144568.099019661118.000093.167729.38112.44820.6355650.744319671145.000095.417730.09112.50821.1333666.455819681887.0000157.255049.59004.13334.82881098.334719691275.4400106.288333.51882.79323.5400742.355919702172.0000181.000057.08004.75740.08991264.22341971934.400077.867724.55662.04617.2466543.877719721308.7700109.055834.39332.86624.1555761.744219732355.0000196.255061.88995.15743.46661370.775119741074.110089.508828.22772.35219.8255625.199019752259.3300188.277559.37444.94841.70001315.004819761818.4400151.533347.78883.98233.56221058.441719771490.2200124.188339.16223.26427.5055867.388519781039.770086.642227.32332.27719.1900605.166819791331.8800110.988335.00002.91724.5811775.188719801547.6600128.966740.67113.38928.5644900.799619811985.7700165.477552.18444.34936.65001155.779619822060.4400171.700054.14774.51238.02991199.227619832109.2200175.766755.43004.61938.92991227.668119841452.0000121.000038.15993.18026.8000845.155119851415.3300117.944237.19443.10026.1222823.78891986963.700080.308825.32662.11117.7877560.933119871193.550099.458831.36552.61422.0288694.688819881483.7700123.644238.99223.24927.3855863.600219891230.4400102.533332.33552.69522.7099716.166619901668.0000139.000043.83553.65330.7866970.877619911540.0062128.333840.47333.37328.4255896.400819922040.7700170.055853.63004.46937.66551187.880919931315.2200109.600034.56332.88024.2755765.522519942522.6600210.211766.29445.52446.56001468.330419951636.2200136.355042.99993.58330.1999952.366619961478.7700123.222538.86003.23827.2922860.6992合計(jì)63155..365262.99471659.7723138.31101165.665836760..200平均1540.3375128.366540.48113.37328.4311896.5990龍家山站逐年逐月最大流量資料（1月～12月）表2.3.1.3單位：m3/s年份1月2月3月4月5月6月7月8月9月10月11月12月19561220.00859.0178.0120.0181.057.2262.031.2195797.043.5479.01710.00766.0963.085.0178.0468.0801.0125.072.2195898.9190.0353.068.01050.00467.0564.0136.0199.0117.034.327.6195941.4355.0687.0726.01150.001780.00278.0666.0945.040.2182.0103.0196079.345.6911.0745.0780.0248.0129.01480.00262.0194.0414.0481.0196154.2297.0650.01920.00380.02080.001060.001990.001850.00829.0152.0116.01962103.071.0561.0634.0934.02240.001290.00257.0458.0315.0244.0103.0196344.6100.0236.0171.0394.0150.079.1102.062.848.4470.069.21964388.0171.0564.01880.00527.02720.00219.0740.0177.0111.046.132.0196534.974.5263.0552.0850.0665.0123.0202.0102.0130.0868.0156.01966285.0188.0128.0667.0443.0447.01060.00144.071.3580.061.561.5196741.4275.0608.0629.0555.0807.02310.00253.0121.039.1123.054.3196842.572.6612.0608.0809.02990.003010.00354.0189.0128.0405.0149.01969180.0156.0343.0532.01250.00304.0158.02640.00392.0602.0125.052.11970225.0118.0620.01670.001490.00891.0415.0290.01010.001110.00152.0603.0197189.4476.0240.0336.0480.0964.0234.0430.0182.085.144.185.1197232.7158.063.41470.00560.0660.0130.02680.00223.0164.0403.0304.01973418.0308.0301.01980.001080.001220.001010.00974.0412.01070.00228.064.11974207.0614.0124.0232.0261.0717.0583.0663.094.0131.071.4280.01975172.0312.0661.0676.02130.001880.00243.0986.0269.0420.0619.0233.0197651.3226.0354.0476.01050.001250.002970.001340.00422.0364.0151.054.81977101.099.183.7436.01130.001590.00335.0236.0140.0107.059.088.71978192.054.0272.0489.01390.00415.0154.0387.089.876.537.933.5197960.2205.0814.0935.0834.01340.00401.0385.0317.063.434.829.7198068.7578.0548.01030.001490.00271.0810.0851.0263.0218.057.943.8198199.2705.0480.02520.001070.00760.0550.0626.0414.0664.0725.0102.0198268.2610.0402.0832.01430.004560.00397.0680.0486.0247.0458.0204.01983170.01010.001710.001060.002280.003600.00284.0178.0138.073.439.455.8198446.377.716.01250.001680.001450.00468.0932.01160.00152.4120.086.0198574.6922.0463.0929.0845.01010.00290.0502.0417.094.661.377.8198656.2110.0783.0883.0270.0490.0532.0125.0125.060.880.745.6198754.6164.0256.0646.0350.0395.0181.0215.0128.0215.0426.0173.01988176.0666.0961.01460.001450.00328.0196.0383.0252.078.551.056.61989271.0367.0207.0399.01980.00972.01140.00123.085.297.556.144.41990244.0723.0808.01070.00608.0900.01530.00565.0479.0479.0582.0526.01992229.0574.01500.001290.001130.001260.002680.00145.0490.070.760.8106.01993153.0327.0458.0223.0802.0906.01400.00393.0116.0260.0148.096.3199455.8805.0834.01570.001600.002580.002200.001880.00247.0761.0108.0676.01995522.0723.0253.0810.0464.01380.00132.0792.0148.0386.078.791.51996141.084.5763.0725.0458.0374.0706.0460.0260.086.959.264.02.3.2降雨茶陵縣氣象站1956～2000年歷年1～12月逐月降雨量統(tǒng)計(jì)見(jiàn)表2.3.2.1。茶陵縣氣象站1956～2000年歷年1～12月逐月降雨量統(tǒng)計(jì)表表2.3.2.1單位：mm年份1月2月3月4月5月6月7月8月9月10月11月12月合計(jì)月平均195646.1114.5215.1139.8353.686.069.445.953.228.888.610.11251.11104.3195767.9164.1139.3201.1163.6131.720.3118.9136.9212.721.345.41423.22118.6195856.460.3112.9134.4300.8229.5165.225.025.983.58.826.71229.44102.4195938.9251.2131.1116.9311.0226.8189.3116.829.623.8109.265.41610.00134.2196029.551.7283.7149.3221.279.863.6144.424.874.4120.018.51260.99105.1196117.8112.3185.0319.2156.2264.2129.6252.8123.18.381.258.81708.55142.419624.251.1139.9163.4296.2409.074.7143.154.388.0126.532.91583.33131.919639.068.790.050.380.064.024.196.310.580.6164.561.4799.466.61964113.493.3137.4289.7109.1214.0103.280.444.746.42.79.61243.99103.7196518.259.9164.0178.0149.3134.444.7103.440.430.9213.380.01216.55101.4196682.669.385.6260.667.8106.1258.49.62.1175.833.964.41216.22101.4196735.0104.2238.4146.8202.3191.2163.1165.571.910.685.232.61446.88120.6196858.257.7208.8175.4183.3428.7238.795.9204.819.6137.693.31902.00158.5196977.236.0116.0135.0189.1101.344.1276.019.6115.333.612.81156.0096.31970369.867.3211.1306.3323.0176.3116.8102.5150.0107.557.4125.22113.22176.1197136.063.267.272.1257.8151.420.7132.011.138.412.944.0906.875.619723.9116.946.0257.9213.186.328.2120.0107.959.8132.2100.21272.44106.0197371.553.9101.5251.2253.4226.8254.9128.121.3120.4140.10.41623.55135.3197490.387.943.4132.1100.2149.9106.665.43.779.714.169.2942.578.5197549.969.3247.2249.2379.2111.324.8334.720.568.491.555.01701.00141.8197625.1108.5150.8160.5136.1297.3382.5142.7102.3147.1108.917.91779.77148.3197782.638.446.4183.9390.4334.079.858.030.364.517.364.91390.55115.9197874.720.1204.1225.2253.0121.096.764.631.219.095.131.61236.33103.0197975.068.8191.1166.7233.5266.646.2113.042.40.16.615.61225.66102.1198079.9207.1149.3304.3302.6120.073.7175.619.179.03.915.61530.11127.5198189.6110.2219.6410.5185.2146.086.8105.154.4170.6161.24.91744.11145.3198225.8178.387.2146.2248.7407.580.299.1163.379.0119.747.71682.77140.2198381.0229.9173.1204.3199.4567.057.667.5128.128.67.759.01803.22150.3198435.130.7115.3323.3321.773.184.8118.963.750.443.459.71320.11110.0198536.1286.7169.4157.8103.0116.060.8171.082.17.953.539.81284.11107.0198629.463.9133.2163.957.6186.2114.817.038.182.240.94.1931.377.6198739.881.9132.8157.4152.269.730.077.147.5187.6147.31.91125.2293.8198857.1151.4152.0181.3262.281.455.068.845.635.44.129.11123.4493.61989164.8101.687.694.7252.0139.2198.744.250.963.428.421.11246.66103.91990120.3167.3198.1164.7218.7158.9200.177.4110.7127.7157.321.71722.99143.61991156.246.9277.9136.6109.339.834.7114.2119.590.480.036.61242.11103.5199257.5161.7429.6105.2180.6220.8208.843.97.65.77.084.01512.44126.0199394.9101.0100.1124.4192.1165.4209.7165.831.896.848.235.41365.66113.8199417.1133.2139.8214.4231.6447.0152.8245.350.887.349.3172.71941.33161.81995123.4149.6113.0162.1113.6289.623.6162.4177.671.332.712.41431.33119.31996100.730.9234.3149.9198.2122.8154.9440.444.38.710.920.51516.55126.41997102.195.5243.1175.5189.0250.7169.1396.4290.5170.0111.4128.82322.11193.51998204.1155.4310.9110.9289.9325.129.351.541.218.655.638.01630.55135.9199950.225.0127.0234.1306.8175.4344.4232.7107.927.423.91.31656.11138.0200080.659.0171.1227.4195.6230.782.6137.8175.4215.262.211.71649.33137.4合計(jì)3278.994555.887320.448413.999633.228919.995198.005947.003212.663406.883151.111981.9965019..55418.33平均72.86101.244162.688186.988214.077198.222115.511132.16671.3975.7170.0244.041444.888120.4112.3.3蒸發(fā)茶陵縣氣象站1956～2000年歷年1～12月逐月蒸發(fā)量統(tǒng)計(jì)見(jiàn)表2.3.3.1。茶陵縣氣象站歷年1～12月逐月蒸發(fā)量統(tǒng)計(jì)表（mm）表2.3.3.1年份1月2月3月4月5月6月7月8月9月10月11月12月合計(jì)（mm）1956128.9115.4244.3195755.041.662.7121.4142.8189.7386.0252.1186.5136.5106.956.01737.22195859.264.486.3171.5132.2186.8287.1276.0223.1124.5100.1103.11814.33195960.542.5104.0129.896.1167.9261.3209.0200.1198.564.732.81567.22196048.578.095.692.493.9184.8293.1207.4206.1150.370.876.41597.33196178.454.475.8120.2159.8186.4262.1202.4119.3120.674.255.01508.66196278.892.8101.8112.5114.6129.4277.6239.7181.3139.368.974.61611.33196394.767.398.2133.9227.5184.9341.3339.0265.3140.875.075.32043.22196443.648.372.7134.3164.1146.0303.9215.3211.6120.5130.568.61659.44196584.253.498.290.9158.6160.0285.7228.5174.8120.280.450.61585.55196645.762.885.284.5171.1150.1231.3270.7256.4137.5110.8606.11967無(wú)記錄196872.555.672.1108.5121.2118.0235.3197.1200.1120.375.356.21432.22196943.739.080.7120.1158.8154.9256.8193.1184.6129.488.191.21540.44197047.346.642.8112.4122.1167.5227.5205.1138.5126.488.942.21367.33197175.171.372.287.2132.2187.1298.4211.2161.4139.1124.674.91634.77197276.138.7131.862.2149.8196.3260.0228.3128.096.870.049.31487.33197335.857.651.994.982.1161.0190.0229.3152.1120.9104.1111.21390.99197444.864.895.7127.9145.7147.5193.5204.5202.7154.2111.644.41537.33197545.161.864.2100.562.5179.9239.8162.8162.6105.868.963.01316.99197676.064.848.290.5153.7143.0209.1241.1179.611.2579.564.61462.66197723.273.4106.1103.1119.1121.5222.8201.0160.2124.2101.777.91434.22197852.857.354.499.6111.6158.3283.9228.1179.3142.670.073.21511.11197933.351.948.786.995.4113.7243.6195.1134.5187.6143.394.31428.33198037.140.346.373.414.55191.6218.6144.0154.6137.9110.984.41384.66198153.636.468.579.4132.1160.0209.2226.3168.872.946.186.11339.44198265.229.461.791.1120.4118.5234.9182.3107.6110.858.365.21245.44198341.043.561.4106.7140.1151.2253.1217.3161.5106.5113.577.31473.11198447.126.660.670.6118.5199.7263.3196.2140.9105.790.140.91360.22198537.531.439.0115.3131.3175.4258.7190.4135.0126.781.454.61376.77198657.350.274.389.2174.8145.7208.4220.8201.6127.667.182.01499.00198754.473.267.7115.3136.2148.6210.7222.5137.794.948.088.21397.44198844.034.568.5101.5117.6205.6253.1180.0116.7110.1109.375.11416.00198963.175.065.472.9101.5156.3208.9182.5137.0154.1102.669.71389.00199043.638.381.5108.3143.6186.1265.2237.8145.3135.084.769.91539.33199122.555.857.593.9167.0204.2318.3239.9162.3140.190.555.71607.77199263.747.543.5110.0118.3155.8212.7238.0165.2176.1153.471.81556.00199347.568.577.598.5988143.2208.9181.5150.9139.470.181.61366.44199463.140.355.396.1156.0156.6212.3180.9140.6107.399.743.81352.00199542.551.161.686.0162.3170.2258.4207.3187.199.1106.691.81524.00199648.081.761.2100.0126.7174.7200.6153.9168.0146.176.184.61421.66199763.045.979.576.3169.7144.0145.9153.597.797.382.841.01196.66199827.952.959.3155.2146.5112.7266.9305.6211.3197.2103.174.01712.66199958.384.768.4106.9131.6164.9153.7154.6165.9104.884.596.81375.11200046.734.264.273.3141.2172.3231.3171.2127.678.061.260.01261.222.4、徑流2.4.1、龍家山站基本資料處理根據(jù)龍家山站資料統(tǒng)計(jì)，汛期4月～8月雨量約占全年總雨量的58.9%，以4、5、6月份雨最多，分別占全年的14.7%、14.9%、14.0%。最大一日雨量龍家山站起來(lái)232mm（1983年6月19日）。本次龍家山站設(shè)計(jì)典型年，按當(dāng)年4月～下年3月計(jì)算。見(jiàn)表2.4.1.1。龍家山站設(shè)計(jì)逐年各月有關(guān)徑流參數(shù)計(jì)算（當(dāng)年4月～下年3月）見(jiàn)表2.4.1.2。龍家山站逐年逐月流量資料（當(dāng)年4月～下年3月）表2.4.1.1單位：m3/s年份４月5月6月7月8月9月10月11月12月1月2月3月1956234.0382.0159.072.3060.049.6031.6050.4027.2032.50128.0164.01957259.0232.0195.045.8063.464.00147.063.3045.2042.8089.60111.01958161.0337.0245.0109.052.555.8048.2029.3022.5027.80130.0133.01959135.0272.0431.0107.098.5111.031.9055.4047.4045.4030.20187.01960182.0305.0144.051.70259.082.6067.2075.9084.9042.0091.80184.01961401.0153.0478.0142.0294.0391.0103.074.7056.6052.7033.30113.01962170.0282.0610.0235.096.098.7070.1095.3049.2029.7048.6077.00196354.258.845.2030.1029.927.4023.8077.6037.6091.0082.90177.01964305.0161.0363.086.10131.463.6050.2031.1024.9021.7028.5066.501965145.0150.0155.047.1050.7047.7048.30125.090.5085.20100.069.901966215.0117.0125.0180.043.7029.2069.7037.2046.1031.3082.60119.01967210.0181.0145.0158.064.0051.6030.8038.9032.8026.1050.10137.01968183.0136.0632.0354.0121.066.0050.0081.5050.3087.3071.00126.01969129.0239.0105.052.90191.065.60113.059.3036.3054.6075.00146.01970358.0492.0222.0127.0101.0206.0162.076.40152.059.5070.9071.40197169.1161.0185.042.70107.061.4044.8031.5030.1024.6068.7033.101972291.0195.0111.038.50177.084.8078.00106.0101.0148.0107.0119.01973454.0399.0311.0274.0155.0127.0124.089.4047.6048.10123.058.40197486.794.8190.0147.0143.049.1047.5041.5045.0060.1096.30254.01975291.0576.0259.087.00191.098.90126.0140.080.0044.1059.30122.01976247.0217.0316.0347.0153.088.80105.075.6043.6071.4069.6047.601977168.0287.0453.0145.077.2058.1050.4033.2029.7051.0033.0098.001978196.0259.0149.053.5069.6043.6034.0028.5024.5033.3064.00152.01979159.0238.0319.085.9090.9099.0039.5026.3024.9030.70123.0130.01980340.0389.0102.093.60136.074.5058.2038.3032.3040.6093.00165.01981604.0195.0216.0125.0114.075.30122.0172.063.8045.70170.0136.01982187.0269.0515.0113.0151.0132.080.70148.0113.099.90216.0349.01983289.0403.0436.091.4066.1060.1043.3028.3027.1028.7041.3062.501984328.0322.0195.081.0087.00150.071.0045.3040.2041.70236.0223.01985205.0114.0160.074.10118.0120.049.2038.5035.8029.8056.00107.01986185.093.0158.0151.057.9032.2029.4039.7024.7022.4031.7084.901987196.0141.087.8061.8070.1049.80216.0153.079.0050.60131.0277.01988257.0332.0131.056.9072.3080.5038.3030.7026.4056.10108.076.001989124.0327.0173.0173.059.6043.0035.6032.4022.7059.60114.0177.01990301.0165.0190.0148.0120.0117.086.40136.054.0051.8891.88138.61991232.1241.5253.5129.8123.787.0172.3665.752.0267.50196.0419.01992273.0235.0259.0326.076.5084.1038.2030.9035.5055.0057.20124.01993122.0159.0259.0200.0123.058.6058.4055.9043.1031.80127.0176.01994289.0265.0473.0283.0374.0129.0138.051.80185.0151.0200.0137.01995229.0162.0310.0113.0129.045.4080.5044.4034.9054.8044.50142.0合計(jì)9264.119737.1110264..55239.224698.003459.002913.662654.222099.442128.003770.005689.99平均231.600243.433256.644130.988117.45586.4872.8466.3652.4953.2094.25142.255龍家山站設(shè)計(jì)逐年各月有關(guān)徑流參數(shù)計(jì)算（當(dāng)年4月～下年3月）表2.4.1.2年份年流量（m3/s）月均流量（m3/s）年徑流量(108m33)月均徑流量(108m33)徑流模數(shù)（公升/秒..km2）徑流深度(mm)19561390.6600115.888336.54553.04525.6666809.411219571358.1100113.177535.69112.97425.0666790.499519581351.1100112.599235.50772.95924.9377786.422119591551.8800129.311740.78113.39828.6422903.244019601570.1100130.844241.26223.43928.9799913.899219612292.3300191.022560.24225.02042.30991334.225619621861.6600155.133348.92334.07734.36001083.55621963735.500061.292219.32991.61113.5755428.100519641333.0000111.088335.03112.91924.6033775.888619651114.440092.867729.28662.44120.5688648.644719661095.880091.317728.79882.40020.2255637.822119671125.330093.775529.57332.46420.7700654.999219681958.1100163.177551.45994.28836.14111139.773119691266.7700105.555833.28992.77423.3799737.299519702098.2200174.855055.14114.59538.72661221.22781971859.000071.583322.57551.88115.8555499.988919721556.3300129.699240.90003.40828.7255905.866019732210.5500184.200858.09224.84140.79991286.664319741255.0000104.588332.98112.74823.1644730.488519752074.3300172.855854.51334.54338.28551207.336719761781.6600148.466746.82003.90232.88331036.999819771483.6600123.633338.98993.24927.3833863.544419781107.000092.250029.09222.42420.4322644.344019791366.2200113.855035.90442.99225.2166795.211019801562.5500130.200841.06333.42228.8399909.466819812038.8800169.900053.58004.46537.63001186.770319822373.6600197.800062.37885.19843.81001381.557719831576.8800131.400041.43883.45329.1033917.799219841820.2200151.688347.83553.98633.59551059.446519851107.440092.283329.10222.42520.4399644.57731986909.900075.825523.91221.99316.7944529.611619871513.1100126.099239.76443.31427.9277880.711519881265.2200105.433333.24992.77123.3522736.422219891340.9900111.744235.23992.93724.7499780.488419901599.7780133.311542.04223.50429.5277931.166819911940.1182161.688250.98884.24935.81001129.330219921594.4400132.866741.90113.49229.4288928.033619931413.8800117.811737.15553.09626.0955822.911619942675.8800222.988370.32005.86049.38771557.447619951389.5500115.799236.51663.04325.6466808.7772合計(jì)61917..9605159.88301627.2204135.60001142.881936039..960平均1547.9949128.999640.68003.39028.5700900.99992.4.2、龍家山站徑流量頻率計(jì)算選取龍家山站當(dāng)年4月～下年3月年徑流量資料（見(jiàn)表2.4.2.1）作頻率分析計(jì)算，成果見(jiàn)表2.4.2.2。龍家山站逐年徑流量資料表（當(dāng)年4月～下年3月）表2.4.2.1序號(hào)年份年徑流量(1108m3)備注1195636.54552195735.69113195835.50774195940.78115196041.26226196160.24227196248.92338196319.32999196435.031110196529.286611196628.798812196729.573313196851.459914196933.289915197055.141116197122.575517197240.900018197358.092219197432.981120197554.513321197646.820022197738.989923197829.092224197935.904425198041.063326198153.580027198262.378828198341.438829198447.835530198529.102231198623.912232198739.764433198833.249934198935.239935199042.042236199150.988837199241.901138199337.155539199470.320040199536.5166合計(jì)項(xiàng)1627.2205平均40.6800龍家山站逐年徑流量頻率計(jì)算表表2.4.2.2編號(hào)P=m/（nn+1）（%）年徑流量(1108m3)相應(yīng)年份備注注12.4470.3200199424.8862.3788198237.3260.2422196149.7658.09221973512.20556354.51331975717.0753.58001981819.5151.45991968921.9550.988819911024.3948.923319621126.8347.835519841229.2746.820019761331.7142.042219901434.1541.901119921536.5941.438819831639.0241.262219601741.4641.063319801843.9040.900019721946.3440.781119592048.7839.764419872151.2238.989919772253.6637.155519932356.1036.545519562458.5436.516619952560.9835.904419792663.4135.691119572765.8535.507719582868.2935.239919892970.7335.031119643073.1733.289919693175.6133.249919883278.0532.981119743380.4929.573319673482.9329.286619653585.3729.102219853687.8029.092219783790.2428.798819663892.6823.912219863995.1222.575519714097.5619.329919632.4.3龍家山站典型年份設(shè)計(jì)按設(shè)計(jì)豐水年P(guān)=10%,設(shè)計(jì)枯水年P(guān)=90%、中水年50%確定典型年。計(jì)算成果見(jiàn)表2.4.3.1。各設(shè)計(jì)頻率下年徑流成果表見(jiàn)表2.4.3.2。P-Ⅲ型曲線配線圖見(jiàn)圖2.4.3.1。龍家山站設(shè)計(jì)代表年逐月流量資料（當(dāng)年4月～下年3月）表2.4.3.1單位：m3/s設(shè)計(jì)保證率((%)10%20%50%80%90%實(shí)際保證率((%)9.76%21.95％％51.22%%80.49%%90.24%%典型年份1973.44～1974.31991.44～1992.31977.44～19788.31967.44～19688.31966.44～1967.34月454.000232.077168.000210.000215.0005月399.000241.500287.000181.000117.0006月311.000253.499453.000145.000125.0007月274.000129.844145.000158.000180.0008月155.000123.70077.2064.0043.709月127.00087.0158.1051.6029.2010月124.00072.360050.4030.8069.7011月89.4065.7033.2038.9037.2012月47.6052.0229.7032.8046.101月48.1067.500051.0026.1031.302月123.0196.00033.0050.1082.603月58.40419.00098.00137.000119.000龍家山站設(shè)計(jì)年徑流成果表（當(dāng)年4月～下年3月）（40年均埴:40.680108m3，CV=0.3，CS=2CV）表2.4.3.2P(1%)Kp年徑流量(1108m3)備注注0.012.520102.51140.102.19089.08990.202.08084.61440.332.01081.76770.501.94078.91991.001.83074.44442.001.71069.56335.001.54062.647710.001.40056.952220.001.24050.443350.000.97039.460075.000.78031.730090.000.64026.035595.000.56022.781199.000.44017.89992.4.4××電站逐年逐月平均流量設(shè)計(jì)龍家山水文站(F=4515km2)位于××電站壩址上游9.9km處，壩址控制集雨F=4566km2。該工程直接參證龍家山水文站。設(shè)計(jì)逐年逐月平均流量按面積比修正系數(shù)0.736次方進(jìn)行插補(bǔ)延長(zhǎng)推求,求得××電站逐年逐月平均流量成果見(jiàn)表2.4.4.1?！痢岭娬驹O(shè)計(jì)逐年各月有關(guān)徑流參數(shù)計(jì)算（當(dāng)年4月～下年3月）見(jiàn)表2.4.4.2?！痢岭娬局鹉曛鹪铝髁抠Y料（當(dāng)年4月～下年3月）表2.4.4.1單位：m3/s年份4月5月6月7月8月9月10月11月12月1月2月3月1956235.9443385.1771160.322072.900060.498850.012231.862250.818827.426632.7700129.0663165.36611957261.1550233.9226196.611946.180063.926664.5311148.222063.825545.575543.155590.3444111.92211958162.3337339.7998247.0334109.900552.936656.263348.600029.543322.687728.0311131.0779134.10041959136.1221274.2558434.5778107.888899.3188111.922132.165555.860047.793345.777730.4511188.55521960183.5111307.5332145.199552.1299261.155083.286667.758876.530085.605542.349992.5622185.52271961404.3229154.2770481.9668143.1779296.4441394.2446103.855575.320057.070053.137733.5766113.93381962171.4111284.3441615.0664236.955196.797799.519970.682296.091149.608829.947749.003377.6399196354.650059.288845.575530.350030.148827.627723.998878.244437.912291.755583.5888178.46691964307.5332162.3337366.011386.8155132.499164.128850.617731.358825.107721.880028.737767.05221965146.2004151.2445156.288747.491151.121148.096648.7011126.033891.251185.9077100.833070.48001966216.7885117.9771126.0338181.499444.063329.442270.279937.509946.483331.560083.2866119.98881967211.7443182.5003146.2004159.311264.531152.028831.056639.223333.072226.317750.51661385119137.1229637.2446356.9339122.000466.548850.415582.177750.718888.025571.5899127.04461969130.0771240.9884105.877253.3399192.588666.1455113.933859.792236.601155.053375.6233147.21121970360.9772496.0884223.8443128.0554101.8338207.7110163.344577.0344153.266259.994471.489971.9933197169.6744162.3337186.533643.0544107.888861.910045.172231.761130.350024.804469.270033.37551972293.4116196.6119111.922138.8200178.466985.504478.6477106.8880101.8338149.2229107.8888119.98881973457.7669402.3112313.5882276.2775156.2887128.0554125.022990.142247.995548.4999124.022158.8855197487.420095.5877191.5777148.2220144.188749.508847.894441.845545.374460.599997.0999256.10091975293.4116580.7882261.155087.7222192.588699.7211127.0446141.166280.664444.466659.7922123.01131976249.0550218.8001318.6223349.8881154.277089.5377105.877276.228843.962271.993370.178847.99551977169.3995289.3882456.7660146.200477.841158.582250.818833.476629.947751.423333.274498.81441978197.6227261.1550150.233753.944470.178843.962234.282228.737724.703333.576664.5311153.26621979160.3220239.9776321.644886.613391.655599.822239.828826.518825.107730.9555124.0221131.07791980342.8222392.2229102.844794.3777137.122975.118858.683338.618832.568840.937793.7722166.37701981609.0114196.6119217.7993126.0338114.944675.9255123.0113173.422864.330046.0799171.4111137.12291982188.5552271.2333519.2775113.9338152.2553133.099681.3700149.2229113.9338100.7229217.7993351.89971983291.3999406.3445439.611992.159966.649960.599943.659928.535527.325528.938841.643363.01991984330.7223324.6773196.611981.672287.7222151.244571.589945.676640.534442.0466237.9559224.85511985206.7002114.9446161.322874.7155118.9880120.999649.608838.820036.097730.047756.4655107.888819