【摘要】：預(yù)應(yīng)力錨索是一種主要承受拉力的構(gòu)件，通過鉆孔將錨固段固定于深部穩(wěn)定的巖土體中，，并通過張拉錨索產(chǎn)生預(yù)應(yīng)力，從而達到使被錨固體更加穩(wěn)定和限制其變形的目的。由于預(yù)應(yīng)力錨索具有主動加固、結(jié)構(gòu)輕巧、加固效率高等特點，在邊坡、深基坑等工程中得到了廣泛應(yīng)用。目前，靜荷載作用下預(yù)應(yīng)力錨索的性能研究較多，但是地震作用下預(yù)應(yīng)力錨索抗震性能的研究還處于起步階段。論文研究了預(yù)應(yīng)力錨索在地震作用下的破壞模式，開展了抗震錨索的性能試驗研究，并進行了現(xiàn)場試驗與工程應(yīng)用。論文主要工作如下： 首先分析了錨索施工、時間和巖體變形三個因素對預(yù)應(yīng)力錨索錨固性能的影響。根據(jù)汶川地震后邊坡的破壞特征詳細的研究了預(yù)應(yīng)力錨索在地震作用下的響應(yīng)機制和破壞模式，并針對預(yù)應(yīng)力錨索的破壞特征進行了原因分析。在此研究的基礎(chǔ)上提出了一種適用于高烈度震區(qū)的抗震錨索。 其次，對提出的抗震錨索進行了實驗研究，通過抗震錨索性能試驗得出錨索的屈服荷載，并分析了壓力分散型抗震錨索是否能利用其獨特的抗震屈服大位移的特點來解決錨索各受力筋受力不均勻的問題。同時通過現(xiàn)場錨索的張拉實驗來驗證在既有施工條件和地質(zhì)條件下抗震錨索是否能夠承受設(shè)計荷載，并驗證了錨索的張拉工藝是否可以優(yōu)化。 最后，根據(jù)抗震錨索在畢威高速公路上某處高邊坡的應(yīng)用，依托實際工程案例中抗震錨索的施工情況和錨索預(yù)應(yīng)力監(jiān)測數(shù)據(jù)的綜合分析，研究了抗震錨索在工程實例中的錨固性能，確定了抗震錨索在工程的各種參數(shù)，為抗震錨索的設(shè)計和施工提出了有效的建議和改進。
[Abstract]:Prestressed Anchorage cable is a kind of member which mainly bears tensile force. The anchoring section is fixed in the deep stable rock and soil by drilling hole, and the prestress is produced by tension anchor cable, so as to make the Anchorage body more stable and limit its deformation. Prestressed anchor cables are widely used in slope, deep foundation pit and other projects because of their advantages of active reinforcement, light structure and high reinforcement efficiency. At present, there are many researches on the behavior of prestressed anchor cable under static load, but the seismic behavior of prestressed anchor cable under earthquake is still in its infancy. In this paper, the failure mode of prestressed anchor cable under earthquake is studied, the performance test of anti-seismic anchor cable is carried out, and the field test and engineering application are carried out. The main work of this paper is as follows: firstly, the influences of cable construction, time and rock deformation on the anchoring performance of prestressed anchor cables are analyzed. According to the failure characteristics of slope after Wenchuan earthquake, the response mechanism and failure mode of prestressed anchor cable under earthquake are studied in detail, and the causes of failure characteristics of prestressed anchor cable are analyzed. On the basis of this research, a kind of seismic anchoring cable suitable for high intensity seismic area is proposed. Secondly, the experimental study of the proposed anti-seismic anchor cable is carried out, and the yield load of the anchor cable is obtained through the performance test of the anti-seismic anchor cable. This paper also analyzes whether the pressure-dispersive Anchorage cable can take advantage of its unique characteristics of seismic yield and large displacement to solve the problem that the stress of the cable is not uniform. At the same time, through the field cable tension experiment to verify whether the anti-seismic anchor cable can withstand the design load under the existing construction conditions and geological conditions, and to verify whether the tension process of the anchor cable can be optimized. Finally, according to the application of seismic Anchorage cable in a high slope of Biwei Expressway, the construction situation of anti-seismic anchor cable and the monitoring data of pre-stress of Anchorage cable in actual engineering cases are analyzed synthetically. The anchoring performance of seismic anchoring cables in engineering cases is studied, and various parameters of seismic anchoring cables in engineering are determined. Effective suggestions and improvements for the design and construction of seismic anchoring cables are put forward.
【學位授予單位】：重慶交通大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U416.1

【參考文獻】

相關(guān)期刊論文 前10條

1 賴杰;鄭穎人;方玉樹;葉海林;;預(yù)應(yīng)力錨索支護邊坡地震作用下動力響應(yīng)研究[J];地下空間與工程學報;2011年S2期

2 王浩;陳峰;柳墩利;吳振祥;廖小平;劉慶元;;動荷載作用下邊坡錨固系統(tǒng)合理設(shè)計探討[J];防災(zāi)減災(zāi)工程學報;2009年06期

3 羅斌;唐樹名;饒梟宇;文志兵;;抗震錨索的開發(fā)與應(yīng)用[J];公路交通技術(shù);2011年06期

4 洪海春;徐衛(wèi)亞;;地震作用下巖體錨固性能研究綜述與展望[J];金屬礦山;2006年03期

5 王志剛;;基礎(chǔ)抗震研究[J];科技傳播;2011年17期

6 李金華;袁兵;;土層中錨索拉拔力與位移關(guān)系的研究[J];煤炭科學技術(shù);2010年03期

7 王林兵;何鵬飛;;預(yù)應(yīng)力錨索在抗滑樁治理滑坡中的應(yīng)用[J];水電與新能源;2012年04期

8 孫超;薄景山;齊文浩;蘭景巖;;地下結(jié)構(gòu)抗震研究現(xiàn)狀及展望[J];世界地震工程;2009年02期

9 馮楊文;;預(yù)應(yīng)力錨索有關(guān)問題的分析研究[J];探礦工程(巖土鉆掘工程);2005年S1期

10 王義鋒;鄭文棠;石崇;;巖質(zhì)高邊坡的地震時程響應(yīng)分析[J];三峽大學學報(自然科學版);2008年03期

本文編號：2296820