Two numerating methods are used in traditional structural design of gate chamber . first , considering the gate frusta to be fastened on the weir body , it is calculated as plane stress problem independently . then applying the results ( moment and vertical force ) on the bottom of gate frusta as concentrating load on the weir body , and the weir body is viewed as a elastic foundation beam or plate and unilateral stress analysis was performed 传统闸室结构计算有两种计算方法，其一是将闸墩视为固端于堰体上，单独进行闸墩平面受力计算，再将闸墩下部的计算结果(弯矩和垂直力)作为集中荷载作用于堰体上，堰体作为弹性地基梁或板进行片面应力计算。
Chapter two ascertains main technological factor of dong gou lock reconstructing , including forecast the cargo and volume through the lock to reason about representative type of vessel designed for through the lock and its operation organize . chapter three design the renovate engineering through ascertaining the main technological factor scale of the lock , dimension , designed water level and altitude , including design of structure of the lock , lock chamber and lock gate , and select the main technological factor and pattern of headstock gear . chapter four draws a comprehensive compare of the two design scheme of the renovate project with engineering project economy evaluation method , and makes out the recommended scheme , and furthermore , to calculate the economic evaluation index of the recommended scheme and makes the economic sensitivity analysis of the scheme and finally demonstrate economic feasibility of the scheme 本论文共分四章：第一章主要介绍了原东沟船闸的地理位置和营运现状，说明了船闸在航道建设和水资源综合利用中的作用及东沟船闸改造的必要性；第二章东沟船闸改造的主要技术因素确定其中包括东沟船闸过闸货种和货运量发展的预测，并确定东沟船闸的设计代表船型及营运组织；第三章东沟船闸改造工程设计本章通过船闸改造工程主要技术参数：船闸规模、尺度、设计水位和高程等的确定，设计了二个船闸改造方案，包括钢筋混凝土整体坞式闸首结构、闸室和闸门的设计，并选定了启闭机的主要技术参数和型式；第四章采用了工程项目经济评估方法对东沟船闸改造工程二个设计方案进行全面综合比较后，确定了推荐方案。
After excavation , there are concentration phenomenon of stress at the corner or the shiplock room , and the tension zone lies in half of the middle part as well as the part of the two slopes to the lower part of the upright wall . finally the analysis results are compared with site monitoring data in period of construction as well as the feedback reports , the result of all comes to meet with each other very well 开挖完成后，在闸室拐角处存在不同程度的应力集中现象，中隔墩上部1 2的岩体及南北边坡至直立墙顶部平台以下的部分岩体为拉应力区。在两侧边坡及边墙的塑性区出现在损伤区和部分卸荷影响区内，中隔墩大部分区域的岩体都进入了塑性状态，闸室底板处的塑性区基本上与损伤区一致。
Based on structural design criterion of floodgates , a finite clement method is adopted to analyze and calculate deep - hole gate chamber . and based on space plank analysis theory , area stress is considered in the stress calculation of original laminose problems . the method is simple , convenient and manageable and reaches better precision 本文在设计规范的基础上针对水闸的结构设计，采用有限元对深孔闸的闸室进行了分析计算，根据空间板的分析理论，在原薄板问题的受力计算基础上考虑了闸内力的作用。
And the conclusion can be obtained thatrafter excavation , the horizontal deformation increased continuedly with the depth of excavation . while the whole deformation takes on a tendency of nearly horizon and slightly downward . the middle part of the shiplocks maintains the state of unloading feedback during the excavation , when the excavation is finished , it expands toward two sides 本文研究发现开挖完成后闸室直立墙和南北边坡的岩体水平方向变形随着开挖深度的下降而不断增大，开挖完成后的总体变形表现为近水平略向下。中隔墩在开挖过程中，始终处于卸荷回弹，开挖完成后，中隔墩向两侧张开。
With the further economic growth and the implement of development of the western regions , hydroelectric construction in our country is undergoing rapid growth , anumber of high - dam power - station is in building or in programming . in view of its higher - head and larger magnitude of spill structure outlet , it is difficult for conventional concrete or reinforced concrete structure of pier and pier room to support its vast water pressure . coupled with the improvement of prestressed method , it has been the noteworthy tool in solving the problem 随着我国经济的加速发展及西部大开发战略的实施，我国水电事业也迎来了迅猛发展的大好时机，一批高坝水电站正在建设或规划之中，其泄水建筑物孔口及水头愈来愈大，常规混凝土或钢筋混凝土闸室闸墩结构难以承受如此之大的水推力作用，随着预应力技术的成熟，这一技术已成为解决该问题的关键技术措施之一。
The surrounding rock mass of the tgp shiplocks is jointed rock mass cut by well - developed discontinuous joints . the middle frusta and vertical border wall are the important components of the lock room construction . its deformability and stability will directly affect the construction function and using security 永久船闸区岩体属于一种断续节理切割的裂隙岩体，中隔墩和直立边墙是闸室结构的重要组成部分，其变形大小和稳定程度将直接影响三峡航道的结构功能和运行安全。
At last the corresponding formulae was yielded . 4 . the design scheme of jiangtang lake flood - intake sluice was systematically researched , including selecting the sluice location , calculating the height of the sluice soleplate , selecting of the sluice structure and bank wall , and then the reliable proof for determining rational structure scheme was provided 4从闸址选择、闸底板高程确定、闸室结构和岸墙等方面，对姜唐湖进洪闸工程的设计方案进行了系统的研究，为最终确定较为合理的结构方案提供了可靠依据。
Shankou spillway project has many specific characteristics , for example , the gate frusta and weir body have equivalent thickness , the weir body is low and have corridor , the foundation of the weir body is " high - low foot " " and the side frusta is also used as retain wall . in view of the characteristics , to better analyze the stress distribution on weir body , gate frusta , the joints between gate chamber and weir body , under the condition that the gate chamber is applied with asymmetrical loads and complicated constraints , three dimensional finite element method is applied in this paper 本文针对山口溢洪道闸墩与堰体底板厚度相当，堰体为低堰且设有廊道、堰体建基面“高低脚”及边墩兼作挡土墙等具体特点，在闸室设计中采山口水利枢纽工程溢洪道闸室三维有限元整体应力计算分析用三维有限元整体应力计算方法分析闸室的受力状态，分析闸室在荷载不对称。
Shipment traffic usually is heavy in littoral area , the navigation capability is required in many riverway . navigation lock was set to suit for the water level ' s variety caused by tide . for a long period , being lack of the quantified assessment on the influence of saltwater intrusion , approaches that freshwater is inpoured to the lock chamber are adopted lest the high concentration salt water be imported to the inland waterway , when the navigation lock is in operation . but such manner should not be reasonale enough 沿海地区船运发达，很多河道有通航要求，为克服潮汐造成的水位变化而设置船闸。长期以来，由于缺乏对盐水入侵内河河道产生影响的定量评估，在船闸运行过程中为防止高盐度咸水入侵内河，通常采用将内河淡水打入闸室的方式来调节通航水位，船闸的这种运行方式不尽合理。
