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（同濟大學(xué)建筑工程系， 上海 200092）
［摘要］對于山地風(fēng)電場，基巖埋深很淺，采用傳統(tǒng)的鋼筋混凝土擴展基礎(chǔ)，需要通過爆破進行基坑開挖，難度很大，對山區(qū)環(huán)境造成破壞。采用巖石錨桿基礎(chǔ)，可以利用基巖的高承載力，有效減小基礎(chǔ)尺寸和埋深，節(jié)省投資。根據(jù)現(xiàn)行規(guī)范中已有錨桿計算方法，針對風(fēng)力發(fā)電塔巖石錨桿基礎(chǔ)受力特點，研究和歸納了錨桿拉力、抗拔承載力以及疲勞壽命的計算方法，并給出了各項關(guān)鍵參數(shù)的取值，為今后的實際應(yīng)用提供了參考依據(jù)。
［關(guān)鍵詞］風(fēng)機發(fā)電塔； 巖石錨桿基礎(chǔ)； 設(shè)計方法； 錨桿拉力； 抗拔承載力； 疲勞壽命
中圖分類號：TU471+.6文獻標(biāo)識碼：A文章編號：1002-848X(2017)06-0086-05
Study on the design method of rock bolt foundation for wind turbine
Chen Junling， Wu Ming， Li Xiaobin
(Department of Structural Engineering，Tongji University，Shanghai 200092， China)
Abstract:For wind farms in mountain areas，if the reinforced concrete spread foundation was applied，its deep foundation pit usually needs to be excavated by blasting because of the shallow rock. Therefore，it is difficult to be constructed and may have destructive changes to the environment. However，the high bearing capacity of bedrock can be taken full use by rock bolt foundation，the size and embedding depth of the foundation will be decreased. As a result，it can save the construction cost. According to the calculation method in current design specifications，the calculation method of bolt tension，uplift bearing capacity and fatigue life was studied and summarized by taking into account the mechanical characteristics of wind turbine rock bolt foundation, and the values of the key parameters were also given. The proposed method can provide the reference for the application of the rock bolt foundation in future.
Keywords:wind turbine； rock bolt foundation； design method； bolt tension； uplift bearing capacity； fatigue life
作者簡介：陳俊嶺，博士，副教授，Email: chenjl@#edu.cn。
