考慮施工缺陷的輸電線路承臺式巖石錨桿基礎(chǔ)承載力研究

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摘 要：基于考慮粘結(jié)-滑移的界面本構(gòu)關(guān)系，研究在典型施工質(zhì)量缺陷條件下承臺式巖石錨桿基礎(chǔ)在上拔荷載作用下的界面破壞過程及抗拔承載力的變化規(guī)律。研究表明：考慮施工缺陷情況下，此類基礎(chǔ)與單根錨桿的破壞形式存在差異，且與錨固長度、缺陷部位等因素有關(guān)。建議工程中增加錨桿檢測數(shù)量，以確?；A(chǔ)安全可靠。

關(guān)鍵詞：承臺式；巖石錨桿基礎(chǔ)；抗拔承載力；質(zhì)量缺陷

中圖分類號：TU472

文獻(xiàn)標(biāo)志碼：A

文章編號：1001-5922（2023）07-0155-04

Study on bearing capacity of transmission line rock bolt foundation with pile-cap platform considering construction defects

XU Weizhong1，GOU Ming1， ZHANG Liguang1，CHEN Zhong1，CHEN Yanfa1，YAN Xiaoming2

（1.Yichang Electric Power Survey & Design Institute Co.，Ltd.，Yichang  443000，Hubei China; 2.College of Electrical Engineering & New Energy，China Three Gorges University，Yichang  443000，Hubei China

）

Abstract：

Based on the bond-slip interface constitutive relation，the interface failure process and the change law of the pulling capacity of such foundation under the uplift load are studied under the condition of typical construction quality defects.The research shows that the failure form of such foundation is different from that of single anchor bolt when considering construction defects，and it is related to anchoring length，defect location and other factors.It is recommended to increase the number of bolt detection in the project to ensure the safety and reliability of the foundation.

Key words：pile-cap platform;rock bolt foundation;pulling capacity;quality defects

承臺式巖石錨桿基礎(chǔ)是山區(qū)輸電線路工程中常見的上拔基礎(chǔ)形式。（剩余4673字）