本文選題：錨桿 + 錨固段　； 參考：《地震工程學(xué)報》2015年S2期

【摘要】：國內(nèi)規(guī)范及工程實踐中把錨桿結(jié)構(gòu)劃分為錨固段、自由段及錨頭段,這種劃分方法已經(jīng)不能滿足錨桿技術(shù)發(fā)展需求,建議增加一種將桿體劃分為黏結(jié)段、非黏結(jié)段與張拉段的劃分方法。工程中普遍存在將黏結(jié)段作為錨固段使用的現(xiàn)象,錨固段與黏結(jié)段、自由段與非黏結(jié)段的功能不同,不能混淆。止?jié){塞是物理上將錨固段與自由段分開的關(guān)鍵構(gòu)件,不設(shè)置止?jié){塞則無法確定錨固段的起止位置及長度,也就無法對錨固段進(jìn)行準(zhǔn)確設(shè)計計算。實際工程中止?jié){塞的設(shè)置位置造成拉力型錨桿帶有拉壓型錨桿的受力特征。為保證錨固段置于假定破裂面以內(nèi)的穩(wěn)定土體中,需將止?jié){塞設(shè)置在假定破裂面以內(nèi)1~2m處。
[Abstract]:In the domestic code and engineering practice, the bolt structure is divided into anchor section, free section and anchor head section. This method can no longer meet the demand of bolt technical development, so it is suggested to add a new method to divide the bolt body into adhesive section. The method of dividing the unbonded segment from the tensioning section. There is a common phenomenon that the bonding segment is used as the anchoring section in engineering. The functions of the anchoring segment and the bonding section, the free section and the non-bonded section are different, so it can not be confused. The grouting plug is a key component that separates the anchoring section from the free section physically. The starting and stopping position and length of the anchoring section can not be determined without the slurry stopper, and the precise design and calculation of the anchoring section can not be carried out. The setting position of suspension plug in practical engineering results in the mechanical characteristics of tension type anchor with tension and compression type anchor. In order to ensure that the anchoring section is placed in the stable soil mass within the assumed fracture plane, it is necessary to set the grouting stopper at 1m within the assumed fracture plane.
【作者單位】： 中國京冶工程技術(shù)有限公司;
【分類號】：TU476

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本文編號：1794663