中国港湾建设
中國港灣建設
중국항만건설
China Harbour Engineering
2015年
11期
1-3
,共3页
宿发强%李进%宁进进%张建军
宿髮彊%李進%寧進進%張建軍
숙발강%리진%저진진%장건군
港珠澳大桥%沉管%径流%潮位%流速
港珠澳大橋%沉管%徑流%潮位%流速
항주오대교%침관%경류%조위%류속
Hongkong-Zhuhai-Macao Bridge%immersed tube%runoff%tide level%current
目前正在施工的港珠澳大桥沉管隧道位于珠江三角洲径流的影响范围内，为了掌握大径流对沉管安装的影响，开展了潮位、流场和海水密度等一系列实时观测。通过现场实测，珠江三角洲汛期带来的大径流，一方面影响流速，另一方面影响海水密度和浊度等。大径流对沉管施工影响显著，尤其对沉管浮运拖航和沉放对接等关键工序影响极大。
目前正在施工的港珠澳大橋沉管隧道位于珠江三角洲徑流的影響範圍內，為瞭掌握大徑流對沉管安裝的影響，開展瞭潮位、流場和海水密度等一繫列實時觀測。通過現場實測，珠江三角洲汛期帶來的大徑流，一方麵影響流速，另一方麵影響海水密度和濁度等。大徑流對沉管施工影響顯著，尤其對沉管浮運拖航和沉放對接等關鍵工序影響極大。
목전정재시공적항주오대교침관수도위우주강삼각주경류적영향범위내，위료장악대경류대침관안장적영향，개전료조위、류장화해수밀도등일계렬실시관측。통과현장실측，주강삼각주신기대래적대경류，일방면영향류속，령일방면영향해수밀도화탁도등。대경류대침관시공영향현저，우기대침관부운타항화침방대접등관건공서영향겁대。
The Hongkong-Zhuhai-Macao Bridge immersed tunnel project under construction is in the range of the influence of Pearl River Delta’s runoff. In order to get the large runoff effects on immersed tube installation, we carried on a series of observation and research on tide, current, and seawater density. The large runoff from Pearl River Delta flood season has influence on current, seawater density and turbidity within actual measurement. It has a great influence on the immersed tunnel construction, especially on the key processes of immersed tube floating and sinking.
