利用极值假说研究输沙率为零时的稳定断面形状。
The research of stable channel shape on the condition of bedload discharge equals zero by use the extreme hypotheses.
摘要在托马假定前提下,从调压室基本方程入手,推导复杂尾水系统的尾水调压室稳定断面计算公式,并通过工程实例进行验证。
Based on thoma supposition and basic equations of surge tank, a few formulas were proposed for the stable sectional area of tailrace surge tank on complicated tailrace system.
通过理论推导,研究了水轮机综合特性系数对调压室稳定断面的影响,即水轮机运行中不同工况点效率的相对变化对调压室稳定断面的影响。
The effect of turbine characteristic on stable sectional area of surge tank can be expressed by the synthetic characteristic coefficient of turbine, it shows the effect of turbine efficiency.
该圆弧形曲线形状实际上是将水力学中的水力最佳断面推广到考虑边坡稳定的情况。
This circular curve shape is actually the extension of the hydraulic optimum section in hydraulics to the situation of considering ban stability.
该圆弧形曲线形状实际上是将水力学中的水力最佳断面推广到考虑边坡稳定的情况。
This circular curve shape is actually the extension of the hydraulic optimum section in hydraulics to the situation of considering bank stability.
在断面模型试验与整体模型试验的基础上,确定了扭工字护面块体的稳定重量。
The stabilized weight of dolos armor block is determined on the basis of sectional model test and overall model test.
水下穿越管线采用全断面沟埋敷设于河床稳定层内,确保了穿越管段的安全。
The under water pipelines were laid into the stable bed by ditch burying of full cross-sectional area to ensure the safety of underwater pipelines.
研究成果表明,经过优化将要实施的二期围堰设计断面,渗透稳定是可以得到保证的。
The research results show that the seepage stability can be guaranteed through the optimized design profile of the second stage cofferdam.
该结构经严格设计计算,形成安全、稳定的断面形式,用于岸坡、堤防、路基等防护工程。
Structure through strict design and calculation, the security, stability, the cross section form, used for bank slope, embankment and subgrade protection project.
基于最小能耗原理,本文提出了一种稳定渠道断面设计的新方法。
Based on the principle of minimum stream power, a new method for designing stable channel is proposed.
虽然疾病加重期的气道细菌浓度高于稳定期,但是,以前的研究均为横断面研究,且缺乏菌株分型。
Bacterial concentrations are higher during exacerbation than during stable disease; however, these studies are cross sectional and devoid of strain typing.
通过对大断面大跨度巷道围岩稳定性的分析,提出了支护的总体思路。
The large span large section of the roadway surrounding rock stability analysis supporting the proposed overall idea.
同时,论述了大跨度隧道的稳定性以及断面尺寸、扁平率和隧道埋深对稳定性的影响。
At the same time, the stability of big-span tunnel with influence factor such as section size, high-span ratio and depth is studied.
运用有调压室的水轮机调节系统数学模型,引入无量纲参数,详细分析了调压室断面积对调节系统稳定域的影响。
The effect of sectional area of surge tank on stability of turbine regulation system has been analyzed by using the mathematic model of the non dimensional parameters of the whole system.
不整形圆木小住宅建筑的墙体断面构造形式采用V字形凹槽,适宜现场手工加工,加快了施工进度,墙体稳定性好,抗震能力强。
Small unshaped log residence of V-shaped wall cross section, which is fit for manual-making on site, can accelerate construction speed and has a good wall stability and seismic resistance.
该坝体断面大部分是按经验确定的,只有少数情况要进行稳定分析。
Main parts of the cross sections of the dam body can be determined by experience, and the others may be fixed up by the analysis of stability.
方法:钢帽式磁性附着体为轴对称稳定场,所以可对其断面的1/ 2进行二维磁场分析。
Methods:Because the magnetic field of cup-yoke-type magnetic attachment is stable axial-symmetrical, the authors only analyzed two-dimensional magnetic field of 1/2 section.
从监测情况来看,各地表水断面、水源地、重点污控企业排水情况都比较稳定,有几项指标都有大幅度改善。
According to the monitoring situation, regional form water section, source of water, enterprise drain off water situation to be more steady, several indexes are all improved.
结果表明:断面形状对巷道围岩的稳定性有较大影响。
The results show that the cross-section shapes of roadways strongly influence the stability of surrounding rocks.
研究表明:如果合理地选择设计连接管断面的尺寸和型式,就可以进一步减小有连接管的尾水调压室水位波动稳定所需的断面积。
According to this study, the optimal design in the size and shape of the linking pipe helps to reduce the sectional area for stability.
影响井巷稳定性的因素主要有:围岩性质、井巷位置、巷道轴线方向,断面尺寸,破岩方法等。
The factor that affect the well lane stability has primarily: Round the rock kind, well lane position, tunnel stalk line direction, cross section size, break rock method etc.
仿真测试表明:该算法性能稳定,能够有效实现不规则断面的井下巷道的三维快速重构。
The simulation detection shows that this algorithm is stable in performance, and can effectively realize the 3d fast reconstruction of irregular cross section of underground tunnel.
合理的扁平率对大断面隧道稳定性和经济性具有重要的意义。
Reasonable span-ratio has an important effect on configuration stability and economical nature of large-span tunnel.
利用断面物理模型试验,对3种结构形式(斜坡段、大台阶段、圆筒段)的护岸的稳定性和越浪量进行了研究。
The stability and wave overtopping rate of 3 kinds of revetments (sloping, big step and cylindrical structure types) are studied by using sectional model test.
全断面钻爆法适用于围岩坚固稳定,采用钻孔爆破方法将洞室开挖断面一次性开挖成型的地下建筑工程洞室开挖掘进方法。
The whole section explosion method which is the one for underground construction digging, suitable for stable and strong dam, form a section for one time by drilling explosion.
特别是改善了弯道出口断面的水舌厚度和流速横向分布的均匀性,保证了末端挑流消能的稳定性和安全性。
Especially they improved the thickness of curved way water tongue and the uniformity of current velocity which distribute in a cross section, promise the stability and the safety of the end jet flow.
当头部形状或开槽宽度不合适时,中间开槽不但不能提高颤振临界风速,反而降低了断面的颤振稳定性。
When the head's shape or width of central slot is unsuitable, central slot decreases critical flutter wind speed instead of increasing it.
随着云南电网的迅猛发展,断面稳定输送功率越限问题日益突出。
Along with the fast development of Yunnan electric power system, tie line over-load has become an increasingly serious problem.
针对虎门大桥,在断面中分别加入水平边稳定板、竖向边稳定板以及中央稳定板,形成三种添加气动稳定性措施的新断面模型。
Added horizontal stabilizer, vertical stabilizer and central stabilizer to the Humen bridge section respectively, to form three new models of cross-sections.
针对虎门大桥,在断面中分别加入水平边稳定板、竖向边稳定板以及中央稳定板,形成三种添加气动稳定性措施的新断面模型。
Added horizontal stabilizer, vertical stabilizer and central stabilizer to the Humen bridge section respectively, to form three new models of cross-sections.
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