消滩水力指标确定方法

曹民雄

消滩水力指标确定方法

曹民雄

南京水利科学研究院港口航道泥沙工程交通行业重点实验室, 江苏南京 210024

基金项目:

国家西部交通建设科技项目 2001 328 224 68

详细信息

作者简介:
曹民雄(1965-), 男, 江西永新人, 南京水利科学研究院高级工程师, 工学博士, 从事港口航道整治与工程泥沙研究

中图分类号: U661.331
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- 被引次数: 0
出版历程
- 收稿日期: 2006-06-18
- 刊出日期: 2006-12-25

Defined method of hydraulic parameter of rapids abating

CAO Min-xiong

Key Laboratory of Harbor, Waterway and Sediment Engineering of Ministry of Communications, Nanjing Hydraulic Research Institute, Nanjing 210024, Jiangsu, China

More Information

Author Bio:
Cao Min-xiong(1965-), male, PhD, seniorengineer, 86-25-85829315, mxcao@nhri.cn

摘要

摘要: 为寻求可直接计算消滩水力指标确定方法, 从船舶有效功率与滩上水流功率对比的角度提出了功率法, 并通过理论分析与滩段概化模型的船模上滩试验进行了验算。结果发现船舶自航上滩时其有效功率大于水流功率, 并随对岸航速的增加, 大于的幅度越大; 船舶不能自航上滩时, 其有效功率小于水流功率。可见, 与其他确定方法相比, 功率法可以通过滩段的水力条件和不同船型的性能资料直接计算消滩水力指标, 满足航运发展的远期设计需要, 可推广应用于急流滩险的航道整治工程设计。
- 航道工程 /
- 消滩水力指标 /
- 船模试验 /
- 功率法
Abstract: In order to directly define the hydraulic parameter of rapids abating, power method was suggested according to the comparison of ship effective power and water flow power in rapids reach, and was verified by theoretic analysis and the test data of remote-control model while ship ascending rapid in generalized rapids reach.It is pointed that ship effective power was larger than water flow power while ascending rapid, the difference range increases with the sailing speed of opposite bank; while ship failed to ascend rapid, ship effective power was lower than water flow power.Analysis result shows that the method can directly determine the hydraulic parameter of rapids abating according to hydraulic conditions and the performance data of different ship types, can satisfy the future design of waterway development, and may be applied in the regulation design of rapids channel.
- waterway engineering /
- hydraulic parameter of rapids abating /
- ship model test /
- power method

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图 1 船模上滩试验

Figure 1. Test of ship model ascending rapids

下载: 全尺寸图片幻灯片

图 2 功率比较

Figure 2. Power comparison

下载: 全尺寸图片幻灯片

表 1 计算结果

Table 1. Calculation result

流量/ (m³·s^-1)	水流速度/ (m·s^-1)	水面比降	对岸航速/ (m·s^-1)	水深/m	水流功率/kW	船舶有效功率/kW	E/P_E
0.05	3.04	0.008 7	0.00	0.109	121.84	103.40	0.85
	3.29	0.010 5	0.00	0.107	122.87	135.93	0.90
	3.47	0.006 6	0.00	0.085	110.07	72.69	1.51
	3.39	0.000 2	1.58	0.096	15.80	199.29	0.08
	3.21	0.005 3	0.61	0.106	74.46	155.24	0.48
	3.53	0.000 0	1.57	0.092	14.72	204.73	0.07
	3.44	0.000 6	1.81	0.094	24.30	209.88	0.12
0.04	3.22	0.013 5	0.00	0.093	155.82	132.92	1.17
	3.60	0.011 5	0.00	0.079	156.10	148.65	1.05
	3.00	0.011 0	1.04	0.098	77.68	162.99	0.48
	3.57	0.000 3	1.52	0.080	27.28	204.43	0.13
	3.18	0.005 2	0.93	0.097	80.77	166.22	0.49
0.03	2.87	0.011 6	0.00	0.082	124.11	118.51	1.05
	3.02	0.013 9	0.00	0.074	158.26	124.78	1.27
	3.04	0.005 0	0.00	0.067	106.54	114.09	0.93
	2.74	0.003 0	1.73	0.086	59.10	178.08	0.33
	3.04	0.004 1	0.88	0.081	69.34	158.36	0.44
	2.77	0.003 5	1.47	0.081	65.85	169.35	0.39
	2.85	0.000 2	1.57	0.073	27.17	176.62	0.15
	2.86	0.012 0	0.76	0.082	158.43	146.70	1.08
0.02	3.98	0.001 1	0.00	0.061	120.37	108.40	1.11
	2.89	0.004 2	0.00	0.058	102.91	97.71	1.05
	3.07	0.010 6	0.00	0.062	137.07	126.73	1.08
	2.89	0.004 2	0.00	0.058	86.52	81.23	1.07
	3.07	0.010 6	0.00	0.062	137.07	126.73	1.08
	2.64	0.008 3	1.07	0.066	89.30	149.08	0.60
0.01	2.41	0.009 5	0.00	0.043	136.53	99.60	1.37
	2.53	0.012 5	0.00	0.042	173.75	104.63	1.66
	3.58	0.000 6	0.42	0.048	79.22	163.31	0.49
	1.80	0.004 6	0.75	0.047	85.86	102.42	0.84

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参考文献(10)

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