双鱼岛陆域高程确定的要素分析

双鱼岛作为离岸式城市综合开发类人工岛,岛上陆域高程是一个独立的系统,陆域高程的确定关系到规划、安全、护岸、景观、土方量和造价、防洪排涝、亲水性等。对人工岛填海造地期和使用期高程确定的主要因素进行论述,并整体介绍双鱼岛高程的变化趋势,对不同部位的高程确定进行分析,同时对工程安全性与景观的平衡、高程与上部规划的关系、高程与土方量及最优造价进行研究。研究成果可供类似工程的高程确定提供思路及参考。

Analysis of elements for land elevation design of Shuangyu Artificial Island

Shuangyu Island is an offshore artificial island for urban comprehensive development,and the land elevation on the island is an independent system.The determination of land elevation concerns planning,safety,revetment,landscape,quantity of land reclamation,cost,flood control and drainage,hydrophily etc.We discuss the main factors that influence the determination of land elevations at reclamation and operation periods,and use Shuangyu Island as an example of case to give an overall introduction on the change trend of land elevation,to analyze the determination of elevation for different parts,and to study on the balance between engineering safety and hydrophily,relationship between elevation and upper planning,optimality principle between elevation and land reclamation quantity or cost.The research results can be used to provide ideas and references for the elevation determination of other similar projects.