(2)(0.62)(051F)
- 格式:doc
- 大小:34.00 KB
- 文档页数:5
钻井现场常用数据1.井低压力:Pm=9.8*10-3P m-- H 其中:Pm-井地压力Mpa, pm-钻井液密度g/cm3 , H-液柱垂直深度m.2.井底有效压力(平衡压力):Pb=Pm+△P 其中:Pb --井底有效压力Mpa, Pm --井地压力, △P--压力附加值。
油井:△P=1.5∽3.5 Mpa,气井:△P=3.0∽5.0 Mpa.3.压井钻井液密度计算: P m1= P m+102Pd /H 其中:P m1--压井所需钻井液密度g/cm3, P m-原始钻井液密度g/cm3 , Pd-关井时立压Mpa, H-井涌地层的垂直井身m.4.钻具中性截面的位置: Ln=Pb/(Qa*Kb) 其中:Ln --中性截面距井底的高度m, Pb-钻压N, Qa-钻铤在空气中的每米重量N/m, Kb -浮力系数。
5.钻具出现一次弯曲的临界压力:钻柱钻具直径(mm)临界钻压钻铤外径内径Φ203.2 Φ100 72.0Φ75 80.0Φ177.8 Φ80 52.0Φ75 55.0Φ70 55.0Φ158.8 Φ57.15 41.1钻杆Φ127.0 8.83Φ88.9 4.806.卡点计算: L1=K×△L/△P [k=21×F] 其中:△L-平均伸长cm,△P--平均拉力 t, F-管体截面积 cm2.各种常用管具K值表:各种常用管具K值表:直径mm 壁厚mm 截面积cm2 K值内容积l/m钻杆?127 9.19 34.03 715 9.27?88.9 9.35 23.36 491 3.87?73 9.19 18.44 387 2.34套管?244.5 10.03 74.02 1554 38.5011.05 81.04 1702 38.4411.99 87.65 1841 38.17?177.8 8.05 42.93 902 20.539.19 48.73 1023 19.9610.36 54.45 1143 19.3811.51 60.08 1262 18.82?139.7 7.72 31.93 671 12.149.17 37.53 788 11.5710.54 42.81 899 11.047.钻杆允许扭转圈数:N=K×H其中:N---允许扭转圈数圈,H-卡点深度m, K-扭转系数圈/米。
第一章:基本数据1.1 常用钻具数据1.1.1 塔里木常用钻杆数据表6-1-1 塔里木常用钻杆数据1.1.2 推荐钻杆上扣扭矩表6-1-2 推荐钻杆上扣扭矩1.1.3 塔里木常用钻铤数据表6-1-3 塔里木常用钻铤数据1.1.4 推荐钻铤上扣扭矩1.1.5 塔里木油田常用钻具稳定器表6-1-5 塔里木油田常用钻具稳定器规格与扣型1.1.6 塔里木常用加重钻杆数据1.1.7 塔里木常用方钻杆数据1.1.8 常用接头丝扣数据表6-1-9 石油钻具接头螺纹尺寸表6-1-10 石油钻具接头螺纹正常磨损允许量单位:mm1.1.9 石油钻具接头螺纹名称与现场叫法对照表1.1.10 塔里木油田钻具分级方法表6-1-13 钻杆分级标记表6-1-14 钻杆接头允许最小长度单位:mm表6-1-15 钻杆接头分级数据表6-1-19 钻杆允许直线度(SY/T5369-94)表6-1-20 钻铤允许直线度(SY/T 5369-94)表6-1-21 方钻杆允许直线度(SY/T5369-94)表6-1-22 方钻杆与方补心间隙(SY/T5369-94)1.1.11 螺杆钻具技术参数螺杆钻具命名方式:例:C 5 LZ 172 * 7.0 Ⅱ-D K W F G其中“C”表示:马达形式(C-长马达、D-短马达、K-空气或泡沫马达省略-常规马达)“5”表示:转子头数“LZ”表示:螺杆钻具产品代号“172”表示:螺杆钻具规格(外径,mm)“7.0”表示:允许使用的转子水眼压降(MPa)“II”表示:产品改进次数“D”表示:弯钻具弯角形式:D-单弯(弯接头或弯壳体)P-大偏移距同向双弯(弯接头+单弯壳体)T-同向双弯S-异向双弯(DTU)J-铰接钻具K-可调弯壳体无-直钻具“K”表示:K-可调弯壳体钻具结构形式省略-固定弯壳体钻具结构形式“W”表示:稳定器(W-传动轴壳体带稳定器;省略-不带稳定器)“F”表示:转子中空分流(F-转子中空分流;省略-转子非中空)“G”表示:钻具耐温特性(G-耐温150℃;省略-耐温120℃)1.1.12 Q10Y-M液气大钳扭矩表6-1-26 Q10Y-M液气大钳扭矩表1.2 油管及套管数据1.2.1 API 油管基本数据 API 油管数据见表6-1-27。
编码食物名称食部(%)水分(g)能量(kcal)蛋白质(g)脂肪(g) 001大米10012.9342 6.90.7 002糯米10012.63487.31 003小麦粉1009.935415.7 2.5 004玉米面10011.23398.5 1.5 005小米1009.73558.93 006玉米10011.829880.8 007油条10021.8386 6.917.6 008挂面10010.236113 1.5 009土豆9478.679 2.60.2 010粉条10014.33370.50.1 011豆腐10078.61119.28.1 012干豆腐1009.443151.623 013绿豆10012.331621.60.8 014豆浆10093.8303 1.6 015豆奶100 2.441919.49.4 016豆腐脑10096.715 1.90.8 017红萝卜9694.2150.80.1 018青萝卜959123 1.20.2 019胡萝卜97902510.2 020绿豆芽10095.313 1.70.1 021黄豆芽10089.832 4.4 1.6 022豆角9790.118 2.20.3 023茄子9593.413 1.10.1 024黄瓜9296120.90.2 025南瓜7488.831 1.40.1 026大青椒8294.61610.2 027小青椒9193.4170.80.3 028蒜8566.6126 4.50.2 029大白菜8395.69 1.10.1 030菠菜8991.224 2.60.3 031酸菜10094.950.70.2 032大头菜8694.5120.90.2 033芹菜10095.4110.40.2 034西葫芦9193.711 1.80.1 035西红柿9795.2110.90.2 036菜花8293.215 1.70.2 037香菜8190.531 1.80.4 038生菜9496.710 1.60.4 039地瓜9083.4570.70.2 040姜8294.5190.70.6 041鲜蘑菇10094.414 1.70.1 042木耳10091.821 1.50.2 043海带10068.389 1.47.5 044紫菜10012.720726.7 1.1045苹果7685.9520.20.2 046梨8285.8440.40.2 047香蕉7077.182 1.10.2 048桔类7786.9510.70.2 049葡萄8688.7430.50.2 050草莓9791.33010.2 051西瓜5693.3250.60.1 052枣8128.3266 2.70.7 053香瓜7892.9260.40.1 054干核桃4349.832812.829.9 055栗子8057.3164 4.41 056瓜子48 2.756728.549 057松子69 3.453012.940.4 058猪肉10074.715019.67.9 059猪内脏10072.612619.2 4.7 060牛羊肉1007213422.35 061肠、火腿10057.42121410.4 062鸡肉666916719.39.4 063鸡肝10074.412116.6 4.8 064鸭鹅肉6863.924015.519.7 065牛奶粉100 2.251625.429.6 066鲜牛奶10087.267 3.1 3.7 067酸奶10081.2883 3.2 068鸡蛋8676.315112.110.5 069鸭蛋847017713.813.5 070松花蛋8366.417814.810.6 071鹅蛋8571.918212.713.6 072鹌鹑蛋867316012.811.1 073鱼5878.29617.7 2.6 074虾8678.18716.4 2.4 075虾皮10087.84810.40.7 076蟹4279.28114.2 1.1 077糕点10022.3325 5.4 6.9 078方便面100 4.544710.217.9 079面包10038260 6.6 3.7 080饼干100 1.4449 6.215.9 081糖1006452 3.716.5 082蜂蜜100223210.4 1.9 083茶10099.71Tr0 084可乐10089.1430.10 085芝麻酱1000.46871866.8 086豆瓣酱10046.617813.6 6.8 087辣椒酱10071.2310.8 2.8 088腐乳10067.815813.111.6 089腌黄瓜10076.22430.3 090腌萝卜10078.7440.60.3 091腌蒜7466.1114 2.10.2092榨菜10087.210 1.50.1 093蚕蛹10057.523021.513 094豆油1000900099.9 095盐1000.1000膳食纤维碳水化合物(g)总(g)可溶性(g)不溶性(g)胆固醇(mg)灰分(g)79.2 2.3———0.378.30.8—0.870.9 3.7———178.4 5.5———0.477.7 4.6———0.779.214.4———0.2510.9— 2.774.70.8———0.617.8 1.20.1 1.1—0.884.20.6—0.93 2.8——— 1.112.58.1——— 3.562 6.4— 3.31.20.3———0.465.2—— 1.0a— 3.60——0.64.2 1.60.5 1.1—0.76.9 2.7———0.78.1 3.2———0.72.6 1.30.1 1.2—0.33.6 3.6———0.67.3 4.3———0.74.83———0.62.50.9———0.48.8 2.70.1 2.6—0.93.8 1.3———0.45.2 2.5———0.327.6 1.1— 1.12.6 1.8———0.64.5 1.7— 1.42.6 2.6——— 1.64 2.3———0.43.1 1.30.31—0.93.6 2.8———0.83.3 1.9———0.44.2 2.70.6 2.1—0.76.2 1.2— 1.11.1 1.1———0.215.3 2.2———0.43.70.9—0.53.2 1.6———0.66 2.6—0.515.311.3———7.544.121.6—15.413.5 1.2—0.213.3 3.1—0.320.8 1.8———0.811.90.4—0.310.30.4—0.37.1 1.1—0.45.80.3—0.266.8 4.5——— 1.56.20.4—0.46.1 4.3— 1.436.3—— 1.9a—115.112.1 3.98.2— 4.740.311.6———30———— 1.21.8———180 1.70———44 1.1 15.6———57 2.61.3—106482.8—356 1.40.2—940.737.1———58 5.85.300010.711.9————0.70.10———10000— 4.25.8—595 2.410———0.82.1—51510.5———4710———240 3.90———— 1.13.6———40 1.964.8 4.4———0.662.6 1.4——— 4.850.1——0.2b— 1.675.3 5.1——0 1.272.8——0.6—175.6————0.10.3————Tr10.80——00.19.4—— 5.9— 5.417.1 1.5—15.93.2 2.6—220.8——0.5— 6.83.4 1.2——17.115.3 5.7——— 5.127.6 1.7—44.1 3.3———7.1 6.7—155 1.3 0.1000—0 0000099.9VitA(ugRE)胡萝卜素(ug)硫胺素(mg)核黄素(mg)维生素B6(mg)维生素B12(ug)000.040.02————0.110.04000.460.050.070 7400.070.040.080——0.320.06—0 171000.030.02—0——0.010.07000.130.040.80 160.10.020.270——0.01———0.050.020.03—472800.220.12—Tr 221300.250.11——0.020.02——1525— 1.01 1.32————0.040.02Tr Tr0.010.020.040 15880.010.020.080 6854107—0.020.160 2110.020.020.030 290.050.070.060 885260.060.050.060——0.030.030.050 7400.020.010.040 25315180.030.040.150 13760.020.020.120 16980.020.020.170 5300.040.065310.020.020.080 48729200.040.11——0.010.01—0 2120.020.020.060 3180.010.020.060 271640.010.030.050 633750.020.010.060 2110.040.040.110 19311600.040.144260.020.010.050 1257500.050.010.150———0.012100.030.080.09—3200.010.05674020.040.030.07—22813700.27 1.02维生素A3200.060.026330.030.066360.020.020.190 1488900.080.048500.040.025300.020.03754500.020.03Tr Tr0.170.14—0 5300.020.03——0.070.14956———09520.940.120.860——0.140.170.210 Tr00.320.20.2—650200.22 2.020.29—Tr00.040.10.33—5—0.260.43——0.050.0910414—0.33 1.152—0.080.22830.23 1.20.12 5.9114—0.020.110.03———0.030.140.02—147180.040.39————0.150.280.03—310—0.020.13174180.060.32——337—0.110.49Tr0Tr0.040.1—48—0.040.03Tr—0.010.020.01—Tr00.030.10.04—Tr Tr0.020.03——794750.240.040.08—000.050.06————0.030.120.03—79—0.020.14————Tr0.05——00000—0—0000——0.260.240.2———0.110.460.461327900.010.09——————301800.060.01——Tr0.010.04———0.040.06——0.010.02————0.07 2.23Tr0——00——————维生素E叶酸(ug)烟酸(mg)维生素C(mg)Total(mg)a-TE(mg)钙(mg)磷(mg)8.70.820Tr Tr3822.3— 1.290.872611323.3 1.9100.32Tr31167—0.800.980.052219622.4 1.040 1.620.39815810.40.5600.38Tr——0.7— 3.19 2.746778.1 1.260Tr Tr2111212.4—14Tr Tr7460.1———352339.80.11Tr8.41105112 Tr0.91Tr46.55 5.672394942—10.958133750.14Tr 1.060.17542— 3.593230.1un6353930.4—10.46—18525.80.22 5.6Tr Tr392726.30.627Tr Tr47314.8—90.310.3127386.10.354Tr Tr141930.10.3240.64un306075.4—130.39un62556.3——Tr Tr5021 Tr——Tr Tr92331.70.525 1.92 1.9216563.60.391300.410.41——3.60.62590.380.3811200.67 1.07 1.07391175.3—11Tr Tr66120.632 1.74 1.4666473.9Tr———4838—0.2416Tr Tr281813.60.222Tr Tr1513——13.30.13un33475.60.49140.420.2842413.50.3232Tr Tr31322.2480.80.681014931.6—Tr Tr Tr141219.60.24Tr Tr18260.32——91114.7——0.37un45417.51 4.0534121.6Tr—2.37un201277.32 1.82 1.612643500.24 2.12 1.534120.36 1.340.4491411.20.51 4.90.20.29170.4280.920.9235180.2250.70.155130.3470.710.5418270.260.10.0689——Tr Tr Tr62610.3150.470.1114170.9143.210.8256294——18.9 3.49un1990 304.5 2.1—11.79.711121032— 1.36—28.2516.0414453 Tr 6.37Tr0.330.336184 425.110.11Tr Tr Tr62434.9 6.24Tr Tr Tr32412.3—0.710.7191875.6—0.670.57915611.9— 1.88 1.8872634.2—0.270.176122—0.6—0.01un66779610.70.11Tr0.10.1989411.30.06Tr——160168—0.10——3520688.20.040 2.85 2.22522120.2— 1.060.2526263—0.10——41700.1— 3.08 1.674718015.5 2.48Tr Tr Tr17152—— 5.330.06325186—Tr Tr0.70.72315715.6 1.46Tr0.580.58—29316.4Tr—7.02un1610811.60.94— 3.12un22124—0.60——427514.80.4— 3.41un4577—Tr— 2.74 2.15———0.13——43 00000210000031399.87.26———6121932.4—0.57531541.1—2.87 2.1811730——0——91—0.952732.10.12—Tr Tr——0.2—0.710.238448.10.15—Tr Tr47222.29.890.1481207 0—0102.9523.231——————22—钾(mg)钠(mg)镁(mg)铁(mg)锌(mg)硒(ug)铜(mg)锰(mg)碘(ug) 111 2.2160.3 1.9410.10.350.44—137 1.549 1.4 1.54 2.710.25 1.54190 3.1500.60.27.420.060.1Tr249 2.3840.40.08 2.680.010.02Tr3350.650 1.6 2.81 2.720.410.38Tr ————— 1.24———227585.21910.758.60.190.52122110.64810.08 3.460.040.05 1.8 347 5.9240.40.30.470.090.1 1.2189.611 5.20.83 2.180.180.161067.363 1.50.74 2.460.060.07—8777.417911.7 4.08 2.26 1.17 2.715787 3.2125 6.5 2.18 4.28 1.08 1.11117 3.7150.40.28Tr0.160.16Tr571221.3478.3 6.25————107 2.8280.90.49Tr0.260.2516111.2240.30.230.270.020.04124856150.30.160.10.020.06—119120.7180.30.220.60.070.08Tr3225.8180.30.20.270.050.050.2 17528.3360.60.370.340.090.220.4 1719.5550.80.380.660.120.27Tr1475110.50.20.090.040.09Tr141 2.290.20.170.10.030.070.2 4451190.40.220.490.040.03——————0.38———1547150.30.210.020.050.050.6 30219.621 1.20.88 3.090.220.2915638.2140.20.230.290.010.070.4 31185.258 2.90.850.970.10.6610443.1210.30.030.16Tr0.01Tr4642.1140.20.120.270.010.09Tr128166.4160.20.140.070.030.040.3203180.40.220.10.040.080.3 1799.7120.20.12Tr0.040.06 2.5 20639.2180.40.17 2.860.020.09Tr27248.533 2.90.450.530.210.289116.170.20.120.040.010.06Tr8870.9170.20.160.220.050.080.4 160 1.9240.80.170.10.03 3.38 20813.2130.70.570.250.080.050.8528.557 5.50.530.460.040.97442511.746 2.3 4.930.50.070.33923 1796710.510554.9 2.477.22 1.68 4.32119 1.640.60.190.120.060.0392 2.180.50.46 1.140.620.07208 3.2330.20.040.070.10.07Tr 154 1.4110.20.080.30.040.14104 1.380.40.180.20.090.06131 4.212 1.80.140.70.040.4987 3.280.30.10.170.050.0548612.224 1.20.50.60.480.22 2.6 1398.8110.70.090.40.040.04385 6.4131 2.7 2.17 4.62 1.17 3.44———0.4— 1.8———399634.7509 6.47.4556.68 2.42 3.4838.5 1007666272 3.9 4.320.59 1.01 1.369.7 31743.228 1.5 2.018.320.01Tr—23568.62423.2 3.6826.120.020.01—14075.1290.4 4.73 3.570.01Tr0.5 217771.222 4.5 3.229.20.360.1425163.319 1.4 1.0911.750.070.03222921612 2.438.550.320.241916914 2.2 1.3312.250.210.06 1500491.292 4.9 5.74 1.380.10.0930.2 15948.9110.20.51 1.1Tr Tr 1.4 27269.612 1.60.63 1.420.010.03—130130— 1.7—————226113122 2.1 1.532.760.20.0730 148—8 3.9 2.7344.320.120.06 7645— 2.5—————138106.611 3.2 1.6125.480.090.04 3253626 1.30.3811.670.010.01—329133.8604 2.2429.650.640.27 98272.190.60.6210.860.070.05—370321.5238 1.1 3.1525.60.40.69—26279.428 1.60.7120.140.26—128465.524 2.60.75 6.990.230.6225.1 190370— 1.2—————242303.418 1.30.38 2.370.110.18 3.4———————— 3.5 280.3210.370.150.030.07—610Tr Tr0.1—Tr——14100.010.10.010.02—424 5.42549.4 3.32— 1.020.91 1.8 772601212516.4 1.4710.20.62 1.37 2228027.691 3.80.260.520.120.3—2020—4—————2993769.517 3.70.89 2.420.090.64———20.6Tr0.010.02Tr 174692.213 1.30.440.80.110.23822461.75 2.10.390.740.030.22—272140.2103 2.6 6.1711.10.530.6419.110.3 1.81————1439311210.2410.140.29。
第四章 起起重设备(5)1. 010 吊杆轴向压力5.125)05(1015)2(=++⨯='++=Q G Q H L R 2. 018 千斤索张力513010102)1010()05(12)()2(22=+⨯⨯-+=+⨯⨯-+=SIN SIN H L H L G Q T θ 3. 019 吊杆的轴向压力105)05(1010=++⨯=R 4. 042P P SIN P SIN HLH L G Q T 5.1210121)0(12)()2(22≈=+⨯⨯-+=+⨯⨯-+=θ 5. 051千斤索张力5130121)05(12)()2(22=+⨯⨯-+=+⨯⨯-+=SIN SIN HLH L G Q T θ第六章 船舶与货物基础知识(56)6. 003 d B L C V dB L VC b b ⨯⨯⨯=⇒⨯⨯=56.237868281487.0025.1=⨯⨯⨯⨯==∆V ρ7. 004 箱形驳船其方形系数为1,不用计算。
8. 012 船舶实际排水量876.19804015.1025.120000=⨯÷=∆ 9. 053 56875.6850.660.6645.686=+⨯+=++=⊗A F m d d d d10. 054 吃水漂心修正量005375.0)5.0(20035.1220.10=+⨯-=⋅=f BP x L t 11. 055δ43286++=++=⊗A F A F m d d d d d d (2A Fd d d +-=⊗δ其中拱垂量),所以选B 12. 056左舷吃水减少(或右舷吃水增加)3492.02tan 220tan 2=⨯=⨯=θB 13. 074 TPC=0.01A W ×ρ=0.01×1200×1.000=1214. 075 TPC=0.01A W ×ρ=0.01×1800×1.025=18.45 15. 082 淡水进入海水,吃水减少m TPC FWA 125.020401001000040100=⨯⨯=⨯∆=,所以进入海水区域的吃水为:9-0.125=8.875m 。
常用胆机输出牛的参数仅供参考(转)2A3B单端的输出牛:96*40,初级0.27线2500T,分5层500T绕。
次级8欧姆1.0线140T,分4层35T夹入初级5层间,4欧姆99T抽头,铁心顺插,间隙0.12。
2A3单端牛:96的Z11新片,片厚0.35。
叠厚5CM。
初级0.25,次级0.86 Z11用骨架初级2500T分5个500T绕。
次级8欧姆148T分4层37T夹入初级,4欧姆抽头在102T处,铁心间隙0.2。
300B单端牛:输出阻抗3.5K/4/8欧姆,铁心用EI96,叠厚50,初级用0.27线绕2700T,分5层绕,每层540T。
次级8欧姆用0.51线140T,共4个140T夹入初级然后并联起来,4欧姆在99T处抽头,也是4个头并联,注意次级4个140T的准确,不要一层141T或139T的情况出现,铁心顺插,间隙0.2。
6P3P单端:3.5K输出牛参数输出牛铁心选EI960.35矽钢片,叠厚50初级线径0.25处即线2960T,分5个592T绕次级8欧姆0.88线168T,4欧姆120T处抽头,分4个42T夹入初级5层间,铁心间隙0.2KT66单端输出牛:舌宽28的EI86型铁心(旧的)曡厚可以用到5CM以内抗阻3.5K次级4欧8欧。
初级0.23线2500T,分4层625T绕次级8欧姆0.53线130T,4欧姆92T抽头,分3次绕夹入初级间,然后并连起来(每层都130T),铁心顺插,间隙0.26P14推挽牛:舌宽25.4MM 叠厚42MM,手上有0.19和0.62的线,阻抗9K:8 。
初级0.19线2800T,1400T抽头为B ,分4段绕,每段700T。
次级8欧姆0.62双线并绕96T,4欧姆68T抽头。
6P1单端牛:66的片子叠厚42MM 阻抗是5K,可以用在6P14或者6V6。
初级用0.17线绕3300T,分成5个660T绕。
次级8欧姆0.67线143T,分4层36T夹入初级,铁心顺插,间隙0.12。
本桥选择左幅桥2号桥墩和右幅桥3号桥墩计算1、左幅桥2号墩(非过渡墩)(一)、基本资料:1).设计荷载:公路Ⅰ级2).T梁(单幅5片梁,简支变连续)高:2.4m3).跨径:40m4).该联跨径组合:(3×40)m5).结构简图如下:二、水平力计算1.横向风力计算按《公路桥涵设计通用规范(JTG D60-2004)》附表1,取湖北省黄石市设计基本风速为V10=20.2m/s;横桥向水平风力计算表参数k0k1k2k3k5桩柱式墩顺桥向挡风面积很小,故顺桥向水平风力不计。
2.温度力计算温差按25度考虑,混凝土收缩徐变近似按温差15度考虑,计算刚度K时,偏安全的忽略支座和桩基的刚度,计算如下表:3.汽车制动力力计算(考虑2车道,一联中近似由一个非过渡墩承受)4.撞击力计算由《公路桥涵设计通用规范(JTG D60-2004)》查得,六级航道内的撞击力顺桥向为100KN,横桥向为250KN,作用点位于通航水位线以上2m的桥墩宽度或长度的中点。
5.桥墩及盖梁自重荷载计算三、作用组合1.支反力汇总按上述盖梁计算立面图,5片主梁从左到右依次编号为1~5,其对应盖梁顶支座反力如下表:2.墩底内力计算因墩柱与盖梁(约5:7)刚度相近,将盖梁与墩柱在横桥向做刚架计算,其中,盖梁计算书另行给出,此处只计算墩柱部分。
荷载分别计算上述“上构支反力汇总”三种活载工况及“横桥向水平风力”作用下墩底内力,计算模型及工况3计算结果如下图所示,其他见下表。
1)活载横桥向产生的墩底内力:(1)墩柱盖梁刚架模型(2)活载工况3结构弯矩图(3)工况3结构剪力图(4)工况3结构轴力图活载横桥向墩底内力左右工况1 N 1029.63 N -23.03 Q 5.38 Q 5.38 M 16.96 M 72.57工况2 N 1650.48 N 362.82 Q 11.97 Q 11.97 M 111.86 M 11.93工况3 N 1447.94 N 907.662)风力横桥向产生的墩底内力:3)墩底内力组合a.考虑顺桥向撞击力的偶然组合:对于圆形截面,纵横向内力应合并计算。
《好题》小学数学五年级上册第一单元小数乘法检测(含答案解析)(7)一、选择题1.乐乐冲洗15张照片,每张照片的冲洗费是0.85元,乐乐笔算如下,箭头所指的“85”表示()。
A. 冲洗1张照片的钱B. 冲洗5张照片的钱C. 冲洗10张照片的钱D. 冲洗15张照片的钱2.某日,中国银行外汇牌价如图。
这一天,同一块手表在美国标价80美元,在香港标价610港元,在法国标价62欧元。
换算成人民币()的标价最低。
A. 美国B. 香港C. 法国D. 无法判断3.与0.3×1.21的积相等的式子是()。
A. 3×0. 12B. 12.1×0.03C. 0.03×0.1214.下列各式中,积最小的是()。
A. 4.2×8.6B. 2.2×9.1C. 8.2×4.65.甲数×1.1=乙数×0.9(甲、乙两数均不等于0),那么()。
A. 甲数>乙数B. 甲数=乙数C. 甲数<乙数6.6.7×(100+1)=6.7×100+6.7运用了()。
A. 乘法交换律B. 乘法结合律C. 乘法分配律7.下列三个选项中,有并且仅有一个选项是7.6× 的积,它是()。
(表示一个两位小数)A. 5.016B. 6.46C. 7.988.下面表示“1.2×0.7”的意义,错误的图是()。
A. B.C. D.9.计算28×0.25,最简便的方法是()。
A. 28×0.5×0.5B. 28×0.2+28×0.05C. 7×(4×0.25)10.下面各算式可以运用乘法分配律简算的是()。
A. (0.25×8)×0.4B. 2.6×3.7+2.6×6.3C. 0.79×2+7.9×9811.下列算式中,结果与5.6×4的积不同的是()A. 5.6+5.6+5.6+5.6B. 5.6×1+5.6×4C. 5×4+0.6×412.在估算5.09×7.9时,误差较小的是估成()A. 6×8B. 5×8C. 6×7D. 5×7二、填空题13.根据23×45=1035,那么10.35=________×________=________×________14.7.2+7.2+7.2+7.2+7.2=________×________=________。
中国南方电网2005年继电保护竞赛笔试试题注意事项:1. 本卷为闭卷考试,要求独立完成。
满分100分,考试时间150分钟。
2. 答卷前将装订线左边的项目填写清楚,装订线外不得出现单位、名字及其他提示性的标记。
3. 答卷必须用蓝色或黑色钢笔、圆珠笔,不允许用铅笔或红笔。
一、判断题(请在试题后面的括号内打√或×,每题1分,共15分)1、如果电流互感器一、二次都以从星标端流入的电流为正方向,当忽略励磁电流时,一、二次电流相位相反。
[ ]2、同杆并架双回线与非同杆并架双回线相比较,外部发生接地故障时,前者双回线中流过的零序电流要比后者的大。
[ ]3、一般地说安装在送电侧的阻抗继电器在区外经过渡电阻短路时容易误动,安装在受电侧的阻抗继电器在区内经过渡电阻短路时容易拒动。
[ ]4、保护装置的远方起信和收发信机的远方起信功能可以同时投入,以相互备用。
[ ]5、大接地电流系统中发生CA 两相经电阻接地短路时,C 相接地阻抗继电器保护范围伸长在区外短路时容易误动,A 相接地阻抗继电器保护范围缩短在区内短路时容易拒动。
[ ]6、在振荡中发生单相金属性短路时,接在故障相上的阻抗继电器的测量阻抗会随着两侧电势夹角 的变化而变化。
[ ]7、三相短路由于没有零序电流,接地阻抗继电器无法正确测量阻抗。
所以它不能用来保护三相短路。
[ ]8、如果忽略电容电流,在35KV 系统中发生接地短路时零序电流是零,复合序网图中没有零序序网,所以两相短路接地可以用两相短路的复合序网图求解电压和电流。
[ ]9、母线保护动作后都应对闭锁式的高频保护采取停信的措施。
[ ] 10、当电力系统发生振荡时,第一个振荡周期总是最短的。
[ ] 11、单相重合闸能重合成功的前提条件是潜供电流能自动熄弧,故障相有足够的恢复电压。
[ ]考生姓名:-----------------------------------------封----------------------装--------------------线--------------------------12、无功功率总是从电压较高的母线向相邻电压较低的母线方向送出。
Test 2 Part I Listening Comprehension A 卷 Section A Directions: In this section you will hear 10 statements. Each statement will be read only once. Then there will be a pause. During the pause, you must read the four suggested choices marked A),B),C)and D),and decide which is closest in meaning to the sentence you have just heard. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
1.A) The edge of the card catalog holds pencils. B) The edge of the card are sharp. C) The pencil can be found on the card catalog. D) There is a pencil sharpener at the end of the card catalog. 2.A) The program won’t go beyond ten. B) There won’t be more than ten people at the program. C) It will continue beyond the tent. D) The program will end after ten o’clock. 3.A) Bonnie and Paul messed up dinner. B) Both Bonnie and Paul long for dinner. C) Neither Bonnie nor Paul came to dinner. D) Bonnie and Paul used to be thinner. 4.A) Mary was looking at the leaf. B) Mary was looking for the leaf. C) Mary looked under the microscope for leaf. D) Mary wanted to examine the microscope. 5.A) Please open the window. B) Do you mind that the window isn’t open? C) Do you have an open mind? D) I don’t mind closed window. 6.A) I suspected they didn’t know the answers. B) They didn’t think I didn’t know the answers. C) I was suspected because I knew the answers. D) They didn’t suspected me because I didn’t know the answers. 7. A) Jane is staring at her elder sister. B) Jane respects her elder sister. C) Jane’s elder sister told her to look up the word. D) Jane is waiting for her elder sister. 8. A) I’m learning only a little bit of English. B) I bit my tongue while speaking English. C) The best way to learn English is to progress in little bits. D) My English is gradually improving. 9. A) How thin are you? B) Have you ever been any heavier? C) Isn’t Ben thin? D) Is it always made out of thin? 10.A) My headache isn’t getting better. B) It looks like my headache is stopping. C) When I go away I get headache. D) I’ve stopped headache. Section B Directions: In this section you will hear 10 conversations. At the end of each conversation, a question will be asked about what was said. The conversation and question will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
11.A) He left his notes in class. B) He borrowed the notes from his classmate. C) He needn’t have the exam. D) A classmate borrowed his notes. 12.A) He has a better idea. B) It would be better if Mary could come with him. C) He thinks Mary’s idea is the best. D) Mary should come up with a better idea. 13.A) Finish the work. B) Wait till next morning. C) Go home. D) Have a rest. 14.A) They want to go downtown. B) They want to go to a park. C) The man doesn’t know where to park the car. D) The man wants to know where the park is. 15.A) He wants to join the others. B) He is behind in his work. C) He missed work when he was ill. D) He will catch up with his friends later. 16.A) She felt sleepy during the lecture. B) She didn’t like the lecture. C) She found the lecture interesting. D) She felt asleep also. 17.A) The woman has chosen a doctor. B) The man doesn’t care which color is chosen. C) The man is concerned about the color. D) The man has chosen a different color. 18.A) No one has a friend like Tom. B) Everyone is Tom’s good friend. C) The man feels lucky to have Tom as a friend. D) The woman doesn’t like any of the man’s friends. 19.A) The man thinks the book is excellent. B) All the papers say that the book is excellent. C) The woman thinks the book is excellent. D) Reactions to the book are different. 20.A) Relaxing just a bit. B) Enjoying sight-seeing. C) Getting the room back into shape. D) Exercising. Part I Listening Comprehension B 卷 Section A Directions: In this section you will hear 10 statements. Each statement will be read only once. Then there will be a pause. During the pause, you must read the four suggested choices marked A),B),C)and D),and decide which is closest in meaning to the sentence you have just heard. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
1.A) The pencil can be found on the card catalog. B) The edge of the card are sharp. C) The edge of the card catalog holds pencils. D) There is a pencil sharpener at the end of the card catalog. 2.A) The program won’t go beyond ten. B) There won’t be more than ten people at the program. C) It will continue beyond the tent. D) The program will end after ten o’clock. 3.A) Neither Bonnie nor Paul came to dinner. B) Both Bonnie and Paul long for dinner. C) Bonnie and Paul messed up dinner. D) Bonnie and Paul used to be thinner. 4.A) Mary was looking at the leaf. B) Mary was looking for the leaf. C) Mary looked under the microscope for leaf. D) Mary wanted to examine the microscope. 5.A) Do you have an open mind? B) Do you mind that the window isn’t open? C) Please open the window. D) I don’t mind closed window. 6.A) I suspected they didn’t know the answers. B) They didn’t think I didn’t know the answers. C) I was suspected because I knew the answers. D) They didn’t suspected me because I didn’t know the answers. 7. A) Jane’s elder sister told her to look up the word. B) Jane respects her elder sister. C) Jane is staring at her elder sister. D) Jane is waiting for her elder sister. 8. A) I’m learning only a little bit of English. B) I bit my tongue while speaking English. C) The best way to learn English is to progress in little bits. D) My English is gradually improving. 9. A) Isn’t Ben thin? B) Have you ever been any heavier? C) How thin are you? D) Is it always made out of thin? 10.A) My headache isn’t getting better. B) It looks like my headache is stopping. C) When I go away I get headache. D) I’ve stopped headache.