马家吉船闸一字门简介

一、概况 马家击船闸位于湖南省常德市下游5km处的沅水左岸滩地,是马凌航线复航工程兴她的第一座船闸,是沟通沅水尾闾与西洞庭大垸内的水路通道。航道等级属六级,通航100t级拖带船队,闸室有效尺度:长80m,

巴江口电厂下闸首一字门裂缝检修技术

一字闸门的质量好坏决定着船闸的安全运行,对巴江口电厂船闸一字门贯穿裂纹进行处理,记录检修处理关键技术,供相关单位参考。

赵家口水库除险加固工程溢洪道闸门方案的选择

赵家口水库除险加固工程的溢洪道改造中,采用了在原溢洪道上下挖新溢洪道形成复式断面溢洪道,根据此特点,对下挖新溢洪道上的闸门设置,进行了叠梁钢闸门方案和一字钢闸门方案的比较,设计中选定了叠梁闸门,但是作者认为,在小型水利工程中,还是要进一步考虑利用一字闸门的可行性。

Roof design of China Southern Airlines No.1 Hangar in Beijing Daxing International Airport

To overcome the limitations of structural height imposed by airspace restrictions in the design of maintenance hangar roofs with long spans,a new diagonal truss roof structural system is introduced for the first time.In the design of China Southern Airlines No.1 Hangar,4 main trusses were arranged diagonally along the depth direction,forming a W-shape truss.3 lineshaped trusses were arranged along the span direction,and double-layer space latticed structure is laid on them.The design optimized the height of the 183 m+222 m super long-span roof to 11.5 m,the maximum dimension the site could provide,so that the building height is within the permitted 40m.The steel consumption of the roof is only 165 kg/m^(2).The installation of diagonal trusses changed the unidirectional load transmission path of the roof and enhanced the spatial load transmission,effectively relieving the burden on the gate-side truss.This design enables the implementation of a maintenance hangar with a 222 m-span and heavy roof within the constraints of low airspace height.

启闭机采用电液比例同步控制液压系统的设计应用

液压传动广泛用于水电启闭机上,在一字门启闭过程中,对两台液压缸的同步要求比较高,根据其总体布局和工况要求进行了分析,采用电液比例同步控制液压系统,经设计计算,并通过实际使用,其速度同步误差在3mm左右。