顆粒分析參數(shù)表

1、土顆粒分析數(shù)據(jù)處理(以甲種密度計為例)一、計算小于某粒徑試樣質(zhì)量占總試樣的百分?jǐn)?shù)：式中 X小于某粒徑試樣質(zhì)量百分?jǐn)?shù)（），計算至0.1； md試樣干質(zhì)量（g）；30g, 當(dāng)試樣中易溶鹽含量大于0.5時，應(yīng)洗鹽 Cs顆粒密度校正值；從表1查得 mT 懸液溫度校正值；從表2查得 CD分散劑校正值； n彎液面校正值； R甲種密度計讀數(shù)。表1 甲種密度計顆粒密度校正值Cs顆粒密度s（g/cm3）顆粒密度校正值Cs顆粒密度s（g/cm3）顆粒密度校正值Cs2.501.0382.700.9892.521.0322.720.9842.541.0272.740.9812.561.0222.760.9762.58

2、1.0172.780.9732.601.0122.800.9692.621.0072.820.9642.641.0022.840.9612.660.9972.860.9582.680.9932.880.954表2 甲種密度計溫度校正值mT懸液溫度()溫度校正值mT懸液溫度()溫度校正值mT10.0-2.020.00.010.5-1.920.5+0.111.0-1.921.0+0.311.5-1.821.5+0.512.0-1.822.0+0.612.5-1.722.5+0.813.0-1.623.0+0.913.5-1.523.5+1.114.0-1.424.0+1.314.5-1.324.5

3、+1.515.0-1.225.0+1.715.5-1.125.5+1.916.0-1.026.0+2.116.5-0.926.5+2.217.0-0.827.0+2.517.5-0.727.5+2.618.0-0.528.0+2.918.5-0.428.5+3.119.0-0.329.0+3.319.5-0.129.5+3.530.0+3.7彎液面校正值n將密度計放于20純水的量筒中，求出彎液面上、下緣讀數(shù)之差，此值即為彎液面校正值。見圖1。圖1注意:此例中為乙型密度計 n=0.9994-0.9998=-0.0004分散劑校正值CD1、儀器設(shè)備.攪拌器：攪拌桿應(yīng)高出量筒。.分散劑：4六偏磷酸鈉

4、。2、校正步驟.注適量純水于1L量筒中，再加入用量與試驗時相同的4六偏磷酸鈉（NaPO3）6溶液，然后用純水稀釋至刻度。.放攪拌器于量筒內(nèi)上、上攪拌均勻；另取一個1L量筒注純水至刻度，兩者同時放入恒溫水槽中使至20恒溫。.先將密度計放入純水量筒中，測記密度計讀數(shù)；取出密度計再放入加分散劑的量筒中，測記密度計讀數(shù)，兩者讀數(shù)之差即為分散劑校正值。3、分散劑校正值計算：CD=RD20-R H20式中: CD分散劑校正值；RD20加分散劑溶液密度計讀數(shù)；R H20純水中密度計讀數(shù)。二、計算土粒粒徑: 式中 d土粒粒徑(mm)，計算至0.001mm； 水的動力黏度（106kPas），查表3； s顆粒密度

5、（g/cm3）； T 時水的密度（g/cm3），查表3； w4 時水的密度（g/cm3）； L某一時間內(nèi)土粒沉降距離（cm）；根據(jù)密度計形狀參數(shù)和密度計讀數(shù)計算 t沉降時間（s）。表3 T時，水的動力黏度和密度溫度T動力黏度水的密度w溫度T動力黏度水的密度w溫度T動力黏度水的密度w10-6kPa.sg/cm310-6kPa.sg/cm310-6kPa.sg/cm35.01.5160.99999215.01.1440.99912625.00.8990.9970745.51.49398215.51.13005025.50.8890.9969446.01.47096816.01.1150.99897

6、026.00.8798136.51.44995116.51.10188826.50.8696797.01.42793017.01.08880227.00.8605427.51.40790517.51.07471427.50.8504038.01.38787618.01.06162328.00.8412628.51.36784418.51.04853028.50.8321199.01.34780919.01.03543329.00.8230.9959749.51.32877019.51.02233429.50.81482610.01.31072820.01.01023230.00.8066761

7、0.51.29268220.50.99812830.50.79752411.01.27463321.00.98602131.00.78936911.51.25658021.50.9740.99791131.50.78121312.01.23952522.00.96379932.00.77305412.51.22346622.50.95268532.50.7650.99489413.01.20640423.00.94156733.00.75773113.51.19033923.50.93044833.50.74956614.01.17527124.00.91932734.00.74239914.

8、51.16020024.50.90920134.50.734230以 公式可寫成： 表4 粒徑計算系數(shù)K值溫度()顆粒密度（g/cm3）2.52.552.602.652.702.752.802.852.902.953.005.00.13620.13400.13190.12980.12790.12610.12430.12260.12100.11940.11805.50.13510.13290.13090.12880.12690.12510.12330.12170.12000.11850.11706.00.13420.13200.12990.12790.12600.12420.12250.1208

9、0.11920.11770.11626.50.13310.13100.12890.12690.12510.12330.12150.11990.11830.11670.11537.00.13220.13000.12800.12600.12420.12240.12070.11890.11740.11590.11457.50.13120.12900.12700.12510.12320.12140.11970.11810.11650.11500.11368.00.13030.12810.12610.12420.12240.12060.11890.11730.11580.11420.11288.50.1

10、2930.12720.12520.12330.12140.11970.11800.11640.11490.11340.11209.00.12840.12630.12430.12240.12060.11880.11720.11560.11410.11260.11129.50.12740.12540.12340.12150.11970.11800.11630.11470.11320.11180.110410.00.12660.12450.12260.12070.11890.11720.11560.11400.11250.11100.109610.50.12570.12370.12170.11980

11、.11820.11650.11470.11320.11170.11020.108811.00.12480.12280.12090.11900.11730.11560.11400.11240.11090.10950.108111.50.12390.12190.12000.11820.11640.11470.11310.11160.11010.10870.107312.00.12310.12110.11920.11740.11560.11400.11240.11080.10940.10800.106612.50.12230.12060.11840.11660.11500.11330.11160.1

12、1010.10870.10730.105913.00.12150.11950.11760.11580.11410.11250.11090.10940.10800.10650.105213.50.12070.11870.11680.11510.11340.11180.11020.10870.10720.10580.104514.00.11990.11790.11610.11430.11260.11100.10940.10790.10650.10510.103814.50.11910.11720.11530.11350.11180.11020.10870.10720.10580.10450.103

13、115.00.11830.11640.11460.11280.11120.10960.10800.10650.10520.10380.102515.50.11750.11560.11380.11210.11030.10870.10730.10580.10440.10310.101816.00.11680.11490.11310.11140.10970.10820.10660.10520.10380.10240.101216.50.11610.11420.11240.11070.10910.10750.10600.10450.10310.10180.100517.00.11530.11340.1

14、1170.11000.10840.10680.10530.10380.10250.10120.099917.50.11460.11270.11090.10920.10770.10620.10460.10320.10180.10050.099218.00.11390.11200.11030.10860.10700.10540.10400.10250.10120.09990.0986續(xù)表4 粒徑計算系數(shù)K值溫度顆粒密度（g/cm3）2.52.552.602.652.702.752.802.852.902.953.0018.50.11320.11130.10960.10790.10640.10490

15、.10330.10190.10060.09930.098019.00.11250.11060.10890.10720.10570.10410.10270.10130.10000.09860.097419.50.11180.11000.10830.10660.10500.10350.10210.10070.09930.09810.096820.00.11110.10930.10760.10590.10440.10290.10140.10000.09870.09740.096220.50.11040.10860.10690.10530.10390.10240.10080.09940.09810.0

16、9690.095621.00.10980.10800.10630.10470.10310.10160.10020.09880.09760.09630.095121.50.10910.10740.10570.10410.10260.10110.09560.09830.09700.09570.094522.00.10850.10670.10500.10340.10190.10040.09900.09770.09640.09510.094022.50.10780.10610.10440.10280.10130.09990.09840.09710.09580.09460.093423.00.10720

17、.10550.10380.10220.10070.09930.09790.09650.09530.09400.092923.50.10660.10480.10320.10160.10020.09880.09730.09600.09470.09350.092324.00.10600.10430.10260.10110.09960.09820.09680.09540.09420.09300.091824.50.10540.10360.10200.10050.09900.09760.09620.09490.09360.09240.091325.00.10480.10310.10150.09990.0

18、9840.09700.09570.09440.09310.09190.090825.50.10420.10250.10090.09930.09790.09650.09510.09380.09260.09140.090226.00.10360.10190.10030.09880.09730.09590.09460.09330.09210.09090.089726.50.10300.10130.09970.09820.09680.09540.09400.09270.09150.09030.089227.00.10250.10080.09920.09770.09630.09490.09360.092

19、30.09110.08990.088827.50.10180.10020.09860.09710.09570.09430.09300.09170.09050.08930.088228.00.10130.09970.09810.09660.09520.09380.09250.09120.09000.08890.087828.50.10080.09910.09760.09610.09480.09350.09200.09070.08950.08840.087329.00.10020.09860.09700.09560.09420.09280.09150.09030.08910.08790.086829.50.09970.09800.09650.09500.09390.09260.09100.08970.08860.08740.086330.00.09920.09750.09600.09460.09320.09180.09060.08930.08810.08700.085930.50.09860.09700.09550.09400.09270.09130.09000.08880.08760.08650