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(江蘇金海新能源科技有限公司, 鹽城 224400)

［摘要］提出了一種新型預(yù)應(yīng)力自鎖頭錨桿，靠自鎖頭和巖石間壓緊摩擦錨固，并施加預(yù)應(yīng)力減小錨桿的疲勞應(yīng)力幅，自鎖頭錨桿可代替?zhèn)鹘y(tǒng)巖石錨桿用作基礎(chǔ)和巖石間的錨固。分別進(jìn)行了傳統(tǒng)錨桿的疲勞試驗(yàn)和靜力試驗(yàn)與自鎖頭錨桿的疲勞試驗(yàn)和靜力試驗(yàn)，共4組試驗(yàn)。通過(guò)對(duì)試驗(yàn)結(jié)果的整理和分析發(fā)現(xiàn)，巖石自鎖頭錨桿的抗疲勞性能是傳統(tǒng)錨桿的45倍，并比傳統(tǒng)錨桿的極限抗拔承載力高。自鎖頭錨桿可以安全可靠地運(yùn)用在巖石地基上的風(fēng)力發(fā)電塔基礎(chǔ)或類似的巖石地基抗疲勞領(lǐng)域。

［關(guān)鍵詞］風(fēng)力發(fā)電塔； 巖石基礎(chǔ)；  錨桿； 自鎖； 抗疲勞

中圖分類號(hào)：U455-7+1，TU471+.6文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)14-0001-07

Anti-fatigue experimental research on pre-stressed self-locking anchor bolt in rock foundation of wind power generation tower

Ma Yihu， Huang Zhangyu

(Jiangsu Jinhai New Energy Technology Co., Ltd.,  Yancheng 224400, China)

Abstract:A new pre-stressed self-locking anchor bolt was presented. It depends on the compacted friction between self-locking foot and rock to anchor and pre-stress was exerted to reduce fatigue stress amplitude of anchor bolt. Self-locking anchor bolt can replace traditional rock anchor bolt to apply to anchorage between foundation and rock. Totally four sets of experiments were done, including fatigue experiments and static experiments on traditional anchor bolt as well as self-locking anchor bolt. Through the collation and analysis of test results, it reveals that anti-fatigue performance of rock self-locking anchor bolt is 45 times as strong as that of traditional anchor bolt, and has stronger ultimate uplift bearing capacity. Self-locking anchor bolt can be safely and reliably used in the wind power base on rock foundation or similar anti-fatigue fields of rock foundation.

Keywords:wind power generation tower; rock foundation; anchor bolt; self-locking; anti-fatigue

作者簡(jiǎn)介：馬逸鵠，英國(guó)工程碩士，Email：mayihugood@163.com。