底孔

针对某大型水利枢纽导流底孔弧形闸门，在闸门上布置若干MR阻尼器，采用优化模糊半主动控制来减小振动。

Optimized fuzzy semiactive control strategy was proposed to reduce the vibration of certain tainter gate installed with magnetorheological ( MR ) dampers in certain key large hydraulic project .

DAPEIN（Ⅰ）水电工程大坝冲砂底孔体型试验

Model test for dam bottom flushing outlet of DAPEIN (ⅰ) Hydropower project

ANSYS在土坝渗流场和应力场及其耦合分析中的应用研究采用国际大型通用有限元软件ANSYS建模与自主开发主体计算程序相结合的办法来实现高寒地区碾压混凝土坝底孔温度应力的仿真计算。

The Application and Study of ANSYS on Seepage Field , Stress Field and Coupling Analysis for Earth Dam Through the adoption of finite element software ANSYS and simulation and analysis program to realize the calculation of high latitude RCC gravity temperature field stress field .

采用三维有限元法对某碾压混凝土坝（RCC）在施工导流期的应力场进行分析，着重校核了顶部未到设计龄期的碾压混凝土和大型导流底孔周边的应力分布；

Three dimension FEM is adopted in the stress analysis of a RCC gravity dam during the construction diversion period , which especially for clearing the stress distribution of the top area RCC concrete that under design RCC concrete age and around area of the large-scale bottom diversion outlet .

其间，许多关键技术创新成果经过了实践的检验：后期底孔导流的研究，满足了三期导流及围堰挡水发电水位135m的泄量要求；

Such as , the study on the outlet diversion in later stage met the discharge demands of the 3rd stage diversion and the level of 135m produced by cofferdam retaining for power generation ;

龚嘴水电站10号底孔检修门段修复，采用了浮体闸门系统坝前深水（60m以浅）自动封堵底孔进水口，形成旱地施工条件之后进行检修门段洞内修复的施工方法并获得成功应用。

To repair the emergency gate at the bottom scouring sluice No. 10 , we adopt floating gate system to block the bottom outlet automatically in 60 m underwater to make the repair construction in the dry , which proved to be successful .

在WES堰或泄洪建筑物的表孔、中孔、底孔中，其下缘体型曲线将很重要，这方面前人已经做了很多工作，但在如今的高坝设计中尚还不是很如意。

Weir release floodwater form hole , middle hole , underport of building in WES , reason size curve very much important under it , in this respect forefathers make much work already , but not yet no as one wishes even of the high design of dam of today .

本文叙述了采用PBM-3聚合物混凝土，通过导管在龚嘴水电站10号冲沙底孔水下58m水深范围内，整体修补了一个封水面，使浮体闸门一次性封水成功。

This article introduces the experience on repairing sealing surface whole by duct casting PBM-3 polymer concrete in the scope under water 58m , which made floating gate sealing success only by one effort .

底孔前伸进水口消涡措施试验研究

Experimental study on eddy-eliminating measures for a moving forwards bottom entrance

溢流坝导流底孔以下采用碾压混凝土。

To use RCC in the spillway below the diversion outlets ;

三峡导流底孔弧形闸门制造技术

Manufacture Technology of Diversion Bottom Outlet Radial Gate of Three Gorges

导流底孔金属结构安装工程监理质量控制

Quality control supervision on metal structure installation of diversion bottom outlets

三峡导流底孔弧形钢闸门结构应力有限元分析

FEM analysis of steel tainter gates of TGP diversion bottom outlets

东风水电站导流底孔及导流洞封堵设计

Closure design of diversion bottom hole and tunnel in Dongfeng Hydropower Station

本文结合岩滩泄水底孔减压试验，讨论了三个问题。

Three problems on the depression test of Yantan outlet are discussed .

底孔采用全过程仿真计算技术进行设计；

To design the bottom outlets with the all process emulation calculation ;

带底孔的圆筒形件成形后毛料孔的变形量研究

Study on displacement of blank hole for forming cylindraceous with bottom border

万安水利枢纽底孔坝段中隔墙流激振动响应分析

Flow-induced Vibration Analysis for Dividing-Wall in Bottom Outlets Section of Wan'an Project

金属薄板螺纹底孔变薄翻边的数学分析

The Mathematics Analysis of Flange for Screwed - Back Hole of Metal Sheet

三峡工程导流底孔布置试验研究

Experimental study on layout of TGP diversion bottom outlets

三门峡水利枢纽底孔应力试验分析

Stress test analysis and treatment of the bottom outlet for the Sanmenxia Hydroproject

三峡工程导流底孔布置及方案比较水力学研究

Hydraulics Study on Arrangement and Scheme Comparison of Diversion Bottom Outlets for TGP

冲压件小螺纹底孔翻边参数的修正

Modification of the Parameters of Flanging Part of Screwthread Underport of Stamping Piece

三峡泄洪底孔工作门安装优化施工

Optimum Installation of Bottom Outlet Service Gates at TGP

一种气瓶锥螺纹底孔铰刀的设计方法

Design Method of Reamer to Machining Basic Hole of Gas-jar 's Tapered Thread Hole

可转位浅孔钻非稳态加工的数学模型螺丝孔钻，螺丝底孔钻

A mathematical model of drilling in non-steady state for the drill with indexable inserts

三门峡水利枢纽底孔破坏机理及改建措施研究

Studies on destroying mechanism and Reconstruction measures of bottom outlet in Sanmenxia hydro project

模型试验中的阵发性不稳定流态及折冲流&李家峡水电站左底孔试验中的两个问题

Model Test on Instable Flow and Oblique Flow

大坝底孔弧形闸门原型振动试验研究

Prototype study on bottom sluice tainter gate Vibration

三峡大坝导流底孔闸门流激振动水弹性模型试验研究

Study on vibration of bottom outlet gate for Three Gorges Project by hydroelastic model