長洲樞紐擴(kuò)能船閘平面布置研究
發(fā)布時間：2018-09-06 11:58
【摘要】：通航建筑物是供船舶通過樞紐的水工建筑物，是樞紐各水工建筑物中最易因平面布置不當(dāng)而出現(xiàn)問題的。通航建筑物的平面布置問題一直是樞紐平面布置設(shè)計中的重點(diǎn)，解決樞紐中通航建筑物平面布置問題的最有效手段是水工模型試驗。擴(kuò)能船閘的平面布置問題是船閘平面布置中技術(shù)最為復(fù)雜的，因為在已建樞紐上擴(kuò)建，擴(kuò)能船閘位置的選擇空間受到明顯限制。 本文依托西江干線長洲水利樞紐擴(kuò)能船閘工程，開展船閘平面布置問題研究，，主要內(nèi)容涉及船閘位置的比選、口門區(qū)及連接段航道通航水流條件的改善措施等。 采用定床整體水工模型試驗及自航船模試驗相結(jié)合的研究方法，對擬建的長洲樞紐三線四線船閘布置方案進(jìn)行了對比分析。研究發(fā)現(xiàn)，中江方案三線四線船閘上游口門區(qū)位于內(nèi)江和中江分流口，洪水流量條件下存在較大的橫流，船舶航行試驗表明船舶進(jìn)出船閘上游引航道存在很大的安全隱患；三線、四線船閘下游引航道位于河道左側(cè)，與右側(cè)的主航道異岸連接，洪水期泄水閘泄流會對船舶航行造成不利影響。研究結(jié)合水流條件試驗和船舶航行試驗結(jié)果，并綜合考慮上下游已建橋梁等情況，確定中江方案不可行。 外江方案船閘位于已建一線二線船閘右側(cè)臺地，其通航水流條件遠(yuǎn)遠(yuǎn)優(yōu)于中江方案，但上游和下游引航道需與已建的一線、二線船閘共用口門區(qū)航道和連接段航道，航路復(fù)雜。綜合總體研究成果，選定外江方案為優(yōu)選布置方案。 本項目在外江方案基礎(chǔ)上開展了一系列優(yōu)化試驗研究，分析了不同工程措施條件下的通航水流條件，結(jié)合船模行試驗深入分析研究優(yōu)化措施的改善效果，在此基礎(chǔ)上提出推薦改善措施，最后通過會船試驗分析并研究了船閘同時運(yùn)營的雙向通航條件，研究結(jié)果顯示推薦工程措施滿足船舶對會安全要求。
[Abstract]:Navigable building is the hydraulic structure for ships to pass through the hub. It is the most prone to the problems caused by improper plane arrangement in each hydraulic structure of the hub. The plane layout of navigable buildings has always been the key point in the layout design of the hub. The most effective method to solve the layout problem of navigation buildings in the hub is hydraulic model test. The problem of the plane layout of the expanded lock is the most complicated in the layout of the ship lock, because the space of the location selection of the expanded lock is obviously limited by the expansion of the existing hub. Based on the capacity expansion project of the Changzhou Water Conservancy Project along the Xijiang River, this paper studies the layout of the ship lock plane, including the location comparison of the ship lock, the improvement measures of the navigable flow conditions in the entrance area and the connecting section, and so on. Based on the research method of fixed bed integral hydraulic model test and self-navigation ship model test, the layout scheme of the proposed third line and four-line lock of Changzhou Hub is compared and analyzed. It is found that the upstream gate area of the third and fourth lines shiplock of Zhongjiang project is located at the diversion port of Neijiang and Zhongjiang, and there is a large cross flow under the condition of flood discharge. The ship navigation test shows that there is a great hidden danger in the approach channel of ship entering and leaving the upper reaches of the lock. The downstream approach channel of the third and fourth lines lock is located on the left side of the channel and is connected with the right main waterway. The discharge of the sluice during the flood period will adversely affect the navigation of the ship. According to the results of flow condition test and ship navigation test, and considering the bridge built in upstream and downstream, it is determined that the Zhongjiang scheme is not feasible. The Waijiang Shiplock is located on the right platform of the second line lock, and its navigable flow condition is far better than that of the Zhongjiang scheme. However, the upstream and downstream approach channels need to share the channel of the entrance area and the connecting channel with the established channel, and the navigation route is complex. According to the overall research results, the Waijiang scheme is selected as the optimal layout scheme. This project has carried out a series of optimization test studies on the basis of the Waijiang project, analyzed the navigable flow conditions under different engineering measures, and analyzed the improvement effect of the optimization measures in combination with the ship model test. On the basis of this, the improvement measures are recommended. Finally, the two-way navigation conditions of shiplock are analyzed and studied by ship meeting test. The results show that the recommended engineering measures can meet the requirements of ship safety.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U641.2
本文編號：2226282
[Abstract]:Navigable building is the hydraulic structure for ships to pass through the hub. It is the most prone to the problems caused by improper plane arrangement in each hydraulic structure of the hub. The plane layout of navigable buildings has always been the key point in the layout design of the hub. The most effective method to solve the layout problem of navigation buildings in the hub is hydraulic model test. The problem of the plane layout of the expanded lock is the most complicated in the layout of the ship lock, because the space of the location selection of the expanded lock is obviously limited by the expansion of the existing hub. Based on the capacity expansion project of the Changzhou Water Conservancy Project along the Xijiang River, this paper studies the layout of the ship lock plane, including the location comparison of the ship lock, the improvement measures of the navigable flow conditions in the entrance area and the connecting section, and so on. Based on the research method of fixed bed integral hydraulic model test and self-navigation ship model test, the layout scheme of the proposed third line and four-line lock of Changzhou Hub is compared and analyzed. It is found that the upstream gate area of the third and fourth lines shiplock of Zhongjiang project is located at the diversion port of Neijiang and Zhongjiang, and there is a large cross flow under the condition of flood discharge. The ship navigation test shows that there is a great hidden danger in the approach channel of ship entering and leaving the upper reaches of the lock. The downstream approach channel of the third and fourth lines lock is located on the left side of the channel and is connected with the right main waterway. The discharge of the sluice during the flood period will adversely affect the navigation of the ship. According to the results of flow condition test and ship navigation test, and considering the bridge built in upstream and downstream, it is determined that the Zhongjiang scheme is not feasible. The Waijiang Shiplock is located on the right platform of the second line lock, and its navigable flow condition is far better than that of the Zhongjiang scheme. However, the upstream and downstream approach channels need to share the channel of the entrance area and the connecting channel with the established channel, and the navigation route is complex. According to the overall research results, the Waijiang scheme is selected as the optimal layout scheme. This project has carried out a series of optimization test studies on the basis of the Waijiang project, analyzed the navigable flow conditions under different engineering measures, and analyzed the improvement effect of the optimization measures in combination with the ship model test. On the basis of this, the improvement measures are recommended. Finally, the two-way navigation conditions of shiplock are analyzed and studied by ship meeting test. The results show that the recommended engineering measures can meet the requirements of ship safety.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U641.2
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