人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
11期
9-11
,共3页
水下保护%壳体结构%结构分析%白鹤梁水下保护工程
水下保護%殼體結構%結構分析%白鶴樑水下保護工程
수하보호%각체결구%결구분석%백학량수하보호공정
underwater protection works%shell structure%structural analysis%White Crane Ridge Inscription
白鹤梁水下保护工程的关键性结构是水下椭圆形直立钢筋混凝土导墙和上覆的钢筋混凝土壳体。为给壳体设计提供可靠的受力参数，采用三维有限元模型，按施工过程中及运行期9种荷载组合工况对导墙结构进行了分析计算。结果表明：按现有设计尺寸，墙体可以承受外围水压力的作用；参观廊道安装后，墙体仍有很大的安全储备；若遇突发洪水，增加2m高的临时围堰后，可以保证墙体安全。
白鶴樑水下保護工程的關鍵性結構是水下橢圓形直立鋼觔混凝土導牆和上覆的鋼觔混凝土殼體。為給殼體設計提供可靠的受力參數，採用三維有限元模型，按施工過程中及運行期9種荷載組閤工況對導牆結構進行瞭分析計算。結果錶明：按現有設計呎吋，牆體可以承受外圍水壓力的作用；參觀廊道安裝後，牆體仍有很大的安全儲備；若遇突髮洪水，增加2m高的臨時圍堰後，可以保證牆體安全。
백학량수하보호공정적관건성결구시수하타원형직립강근혼응토도장화상복적강근혼응토각체。위급각체설계제공가고적수력삼수，채용삼유유한원모형，안시공과정중급운행기9충하재조합공황대도장결구진행료분석계산。결과표명：안현유설계척촌，장체가이승수외위수압력적작용；삼관랑도안장후，장체잉유흔대적안전저비；약우돌발홍수，증가2m고적림시위언후，가이보증장체안전。
The vertical elliptic reinforced concrete guide wall and the overlay reinforced concrete shell are the key structures of White Crane Ridge Inscription underwater in-situ protection works. In combination with 9 load cases in construction and opera-tion periods, 3D FEM was adopted to carry out structural analysis for the structure, so as to provide reliable loading parameters. The results show that the wall structure could bear the outside water pressure by the given size, and with much safety margin even after the visiting corridor was assembled. Under the condition of flood, the wall structure could be guaranteed by supplementing a 2m high temporal cofferdam.
