(1)增加試驗之出水強度,亦即增加泵浦馬力(水壓、流速)、增加流功(加大 出水孔徑),才能對 Kh值更高之岩盤施做試驗。
(2)將圖 6-1 可轉部中之入水處螺牙孔徑加大,並且將可轉部內之水流管路 設計成倒三角錐的形狀,可大幅降低因縮管所造成之壓力損失。
圖 6-1 可轉部建議改良示意圖
(3)原量尺量測的準度雖然還不算太差,但是以短時間岩石的沖蝕量來講,
精度還需要再提升,建議未來設置類似液壓游標尺的儀器在 Mini Jet 上,將 更能提升數據的可靠度。
(4)標桿底部本研究是製作出一個高 5.5mm 直徑 5mm 之圓柱體,以此圓柱
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碰觸試驗體來進行量測,但是此設計會因為沖蝕坑的大小,而使量測的值 出現不同的結果,例如,沖蝕坑在還沒完全發展下,如果其寬度小於 5mm,
這樣就會量測不到,也就是無法量測到真正沖蝕坑的底部,如果要克服這 個問題,縮小標桿底部是個可以考慮的方法,但是如果標桿底部太過尖銳,
反而會破壞到試體,因此建議將其設計成一個直徑 1mm~2.5mm 的球體,
將會是更理想的形式。
(5)增加底座之固定力,使儀器可於大角度傾斜之岩盤上施做。
(6)計算基礎理論運用在軟岩上並無太大問題,但是未來應將計算程式寫成 能自動將短時間沖蝕所造成較大(大於 1mm)之沖蝕量自動剔除,也就是沖 蝕深度圖中斜率極大之處。
(7)因試驗水流的濁度對沖蝕量有很大之影響,因此該對現地試驗用水進行 採樣,並由室內實驗分析來確定水流的含泥砂量。
(8)4.4 節的試驗方法及步驟中說明本文所模擬的是在流速為 10.98m/s 時所 造成之沖蝕率,因此建議可以藉由流速的改變(改變泵浦馬力或噴嘴)來進行 試驗,取得在相同岩性下時不同流速的沖蝕率,由此分析出流速與沖蝕率 之間的關係式(圖),便可估測此種岩性受各流速沖蝕時所對應之沖蝕率。
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10 1.258925 1.584893 1.995262 2.511886 3.162277 3.548134 3.981072 4.466836 5.011872 5.623413 20 1.349283 1.820564 2.45646 3.314454 4.472136 5.194772 6.034176 7.009217 8.14181 9.457416 30 1.405116 1.97435 2.774191 3.89806 5.477226 6.492571 7.696136 9.122814 10.81396 12.81861 40 1.446126 2.091279 3.024252 4.373448 6.324555 7.605591 9.146101 10.99864 13.22641 15.90541 50 1.478758 2.186724 3.233635 4.781762 7.071068 8.598714 10.4564 12.71541 15.46247 18.80302 60 1.505966 2.267933 3.41543 5.143521 7.745967 9.50568 11.66516 14.31523 17.56733 21.55825 70 1.52936 2.338943 3.577086 5.470654 8.3666 10.34675 12.79555 15.82391 19.569 24.20045 80 1.549919 2.402249 3.723291 5.7708 8.944272 11.13524 13.8629 17.25872 21.48637 26.74961 90 1.568282 2.459509 3.857205 6.049187 9.486833 11.88046 14.87803 18.63192 23.33296 29.22011 100 1.584893 2.511886 3.981072 6.309573 10 12.58925 15.84893 19.95262 25.11886 31.62278 150 1.650476 2.72407 4.496011 7.420557 12.24745 15.7344 20.21412 25.96924 33.36291 42.86161 200 1.698646 2.8854 4.901274 8.325532 14.14214 18.43175 24.02249 31.30902 40.80572 53.18296 250 1.736977 3.017088 5.240612 9.102821 15.81139 20.83853 27.46401 36.19604 47.70435 62.87167 300 1.768936 3.129135 5.535239 9.791484 17.32051 23.03651 30.63887 40.75011 54.1982 72.08434 350 1.796416 3.227109 5.797228 10.41423 18.70829 25.0748 33.60786 45.04475 60.37368 80.9191 400 1.820564 3.314454 6.034176 10.98561 20 26.98566 36.41128 49.12912 66.28908 89.44272 500 1.861646 3.465724 6.45195 12.01124 22.36068 30.50939 41.62766 56.79767 77.49595 105.7371 600 1.895899 3.594432 6.814679 12.91994 24.4949 33.72743 46.43984 63.94378 88.04524 121.2309 700 1.925351 3.706975 7.137225 13.74166 26.45751 36.71165 50.93999 70.6828 98.07733 136.0892 800 1.951232 3.807308 7.428942 14.49559 28.28427 39.50931 55.18919 77.09185 107.6869 150.4241 900 1.97435 3.89806 7.696136 15.19487 30 42.15347 59.23051 83.22573 116.9418 164.3168 1000 1.995262 3.981072 7.943282 15.84893 31.62278 44.66836 63.09573 89.12509 125.8925 177.8279 1500 2.077826 4.31736 8.970722 18.6396 38.72983 55.82776 80.47385 116.0004 167.2106 241.0285
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1 154.4064 154.4064 154.4064 154.4064 154.4064 154.4064 154.4064 154.4064 154.4064 154.4064 10 180.0247 209.8934 244.7177 285.3199 332.6586 359.1965 387.8514 418.7923 452.2016 488.276 20 188.5388 230.2163 281.1068 343.247 419.1236 463.1373 511.773 565.5162 624.9032 690.5266 30 193.7047 243.0048 304.8524 382.441 479.7767 537.3739 601.8855 674.1418 755.0725 845.7189 40 197.4556 252.507 322.907 412.9347 528.0626 597.1555 675.2886 763.6448 863.5618 976.5521 50 200.4149 260.1326 337.6443 438.2522 568.8382 648.0687 738.3349 841.1738 958.3366 1091.818 60 202.8658 266.5338 350.1835 460.0861 604.4808 692.8739 794.1927 910.3274 1043.444 1196.027 70 204.9613 272.0686 361.1478 479.3928 636.353 733.1644 844.7041 973.213 1121.272 1291.857 80 206.7941 276.956 370.9227 496.7708 665.3172 769.9545 891.0486 1031.188 1193.367 1381.053 90 208.4242 281.3397 379.7641 512.6214 691.9577 803.9351 934.0334 1085.185 1260.797 1464.828 100 209.8934 285.3199 387.8514 527.2283 716.6912 835.6006 974.2388 1135.879 1324.338 1544.064 150 215.6444 301.1694 420.6139 587.4304 820.4066 969.5396 1145.782 1354.061 1600.201 1891.085 200 219.8201 312.946 445.5243 634.2689 902.9743 1077.399 1285.516 1533.834 1830.119 2183.637 250 223.1146 322.3968 465.8578 673.1565 972.6996 1169.257 1405.534 1689.557 2030.973 2441.38 300 225.8431 330.3302 483.1585 706.6935 1033.648 1250.096 1511.868 1828.456 2211.339 2674.398 350 228.176 337.1898 498.2864 736.3487 1088.148 1322.788 1608.024 1954.767 2376.278 2888.68 400 230.2163 343.247 511.773 763.0413 1137.676 1389.166 1696.248 2071.213 2529.065 3088.129 500 233.6667 353.6129 535.1301 809.8242 1225.525 1507.606 1854.613 2281.493 2806.627 3452.633 600 236.5241 362.3144 555.0034 850.1699 1302.314 1611.836 1994.922 2469.056 3055.878 3782.17 700 238.9674 369.8382 572.3807 885.846 1370.981 1705.564 2121.801 2639.619 3283.808 4085.21 800 241.1042 376.4819 587.8728 917.9578 1433.382 1791.149 2238.213 2796.862 3494.948 4367.274 900 243.0048 382.441 601.8855 947.2474 1490.778 1870.198 2346.186 2943.318 3692.427 4632.193 1000 244.7177 387.8514 614.7031 974.2388 1544.064 1943.862 2447.177 3080.813 3878.514 4882.76 1500 251.4229 409.3966 666.6282 1085.483 1767.512 2255.445 2878.074 3672.583 4686.421 5980.136
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ix
1 231.6097 231.6097 231.6097 231.6097 231.6097 231.6097 231.6097 231.6097 231.6097 231.6097 10 270.037 314.8401 367.0766 427.9799 498.9879 538.7947 581.7772 628.1885 678.3024 732.414 20 282.8082 345.3245 421.6603 514.8705 628.6853 694.7059 767.6596 848.2743 937.3548 1035.79 30 290.557 364.5072 457.2786 573.6614 719.6651 806.0608 902.8283 1011.213 1132.609 1268.578 40 296.1834 378.7605 484.3604 619.4021 792.0939 895.7332 1012.933 1145.467 1295.343 1464.828 50 300.6224 390.1989 506.4664 657.3782 853.2573 972.1031 1107.502 1261.761 1437.505 1637.728 60 304.2987 399.8007 525.2752 690.1291 906.7212 1039.311 1191.289 1365.491 1565.167 1794.041 70 307.442 408.103 541.7217 719.0893 954.5295 1099.747 1267.056 1459.819 1681.909 1937.785 80 310.1911 415.434 556.384 745.1562 997.9758 1154.932 1336.573 1546.782 1790.051 2071.58 90 312.6364 422.0096 569.6461 768.9321 1037.937 1205.903 1401.05 1627.778 1891.196 2197.242 100 314.8401 427.9799 581.7772 790.8425 1075.037 1253.401 1461.358 1703.819 1986.507 2316.097 150 323.4666 451.7542 630.9209 881.1456 1230.61 1454.309 1718.673 2031.092 2400.302 2836.627 200 329.7302 469.419 668.2865 951.4033 1354.461 1616.098 1928.274 2300.751 2745.179 3275.455 250 334.672 483.5952 698.7868 1009.735 1459.049 1753.886 2108.301 2534.335 3046.459 3662.07 300 338.7646 495.4953 724.7378 1060.04 1550.471 1875.143 2267.802 2742.685 3317.008 4011.597 350 342.264 505.7848 747.4296 1104.523 1632.222 1984.182 2412.037 2932.15 3564.416 4333.02 400 345.3245 514.8705 767.6596 1144.562 1706.515 2083.749 2544.372 3106.819 3793.598 4632.193 500 350.5 530.4193 802.6952 1214.736 1838.287 2261.408 2781.92 3422.239 4209.941 5178.949 600 354.7862 543.4716 832.5051 1275.255 1953.472 2417.754 2992.383 3703.584 4583.817 5673.255 700 358.4511 554.7574 858.5711 1328.769 2056.471 2558.346 3182.701 3959.428 4925.713 6127.816 800 361.6563 564.7228 881.8093 1376.937 2150.074 2686.724 3357.319 4195.293 5242.422 6550.91 900 364.5072 573.6614 902.8283 1420.871 2236.167 2805.297 3519.279 4414.977 5538.64 6948.29 1000 367.0766 581.7772 922.0547 1461.358 2316.097 2915.793 3670.766 4621.22 5817.772 7324.14 1500 377.1343 614.0949 999.9422 1628.225 2651.269 3383.167 4317.111 5508.874 7029.632 8970.203
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