舟山与大陆联网大跨越线路工程海上铁塔基础防撞系统设计  

Anti-collision System Design of Offshore Tower Foundation of Zhoushan-Mainland Long Span Power Transmission Project

作　　者：胡列翔[1] 张浙杭[2] 高志林[2] 朱斌[3] 李琪[2] 杨涛[2] 

机构地区：[1]浙江省电力公司,杭州市310007 [2]浙江省电力设计院,杭州市310012 [3]浙江大学,杭州市310058

出　　处：《电力建设》2011年第3期9-14,共6页Electric Power Construction

基　　金：国家电网公司科技项目(舟山与大陆联网海上大跨越关键技术研究与实施)

摘　　要：基于相关局部冲刷水槽试验、通航环境安全评估等资料,确定了舟山与大陆联网大跨越线路工程海上输电铁塔基础的防撞标准,采用桩基水平大变形p-y曲线分析法并基于撞击能量控制设计了海上铁塔基础的柔性护墩桩式防撞系统。新型防撞系统由内外圈防撞桩及桩间连系梁组成,所有防撞桩连为一个整体共同抵抗船舶撞击能量,而连系梁中的柔性钢丝束还可保证船舶无法突破防撞系统。该柔性防撞系统一方面能有效降低船舶在撞击过程中的损坏程度,另一方面能抵抗一般高能量撞击而不必修复,对于极限高能量撞击,修复受损局部即可。Based on the information of local scouring flume test and navigation safety evaluation,the anti-collision standard of the offshore transmission tower foundation of the Zhoushan Island-mainland power transmission project was determined.A new flexible pile-type anti-collision system was designed for this foundation by using the p-y curve method and based on the collision energy control.The proposed new anti-collision system is composed of piles and girders.All the anti-collision piles are connected into an integral system to resist the collision energy of the moving ship,and the flexible wire bundle can prevent any ship from breaking through the anti-collision system.The flexible anti-collision system can effectively reduce the damage that may be induced by ship collision,and can resist high-energy collision without any repairment.And for the extreme-high energy collision,the repairment is only needed for the damaged location.

关 键 词：海上铁塔 防撞系统 P-Y曲线法 大跨越 

分 类 号：TU43[建筑科学—岩土工程] TM75[建筑科学—土工工程]