兆瓦级风机塔架基础地基力学特性研究  

Study on Ground Mechanical Characteristics of Tower Foundation of Wind Turbine with Capacity More Than One Megawatt

作　　者：许新勇[1] 刘峥 张迪[3] 

机构地区：[1]华北水利水电学院,河南郑州450011 [2]中国水电顾问集团北京勘测设计研究院,北京100024 [3]黄河水利职业技术学院,河南开封475003

出　　处：《水力发电》2012年第12期74-76,共3页Water Power

基　　金：国家自然科学基金项目(51109081);河南省基础与前沿技术研究项目(122300410001)

摘　　要：以内蒙古辉腾锡勒风电场为例,基于ANSYS平台建立了风机塔架基础三维有限元数值模型。考虑基础与地基的接触非线性,针对从砂土软基到刚性地基的过渡变化,进行了多工况敏感性分析。研究了不同地基力学特性对风机基础结构沉降的影响,探讨了塔架基础结构的受力特性和规律。可为我国类似风电工程基础结构设计和优化提供参考。An ANSYS-based three-dimension finite element model is established for analyzing the structure of tower foundation of wind turbine in Huitengxile Wind Farm. The sensitivities of soil ground under different operation conditions are analyzed by considering the non-linear contact between ground and tower foundation and the transition from sand soil ground to a rigid foundation. The effects of the mechanical characteristics of soil ground on the settlement of tower foundation are studied, and the stress distributions of tower foundation are also researched. This study can provide references to the design and optimization of similar tower foundations.

关 键 词：风机 塔架基础 地基力学特性 敏感性分析 辉腾锡勒风电场 

分 类 号：TU473.12[建筑科学—结构工程] TM614[建筑科学—土工工程]