發(fā)布時(shí)間：2018-03-15 06:21

  本文選題：道路工程　切入點(diǎn)：斜導(dǎo)管加固邊坡　出處：《公路交通科技》2017年05期 　論文類型：期刊論文

【摘要】：為分析公路填方邊坡在遇到滑移開(kāi)裂變形破壞時(shí)使用斜導(dǎo)管注漿框架梁的可靠性,通過(guò)一個(gè)成功的邊坡變形病害治理實(shí)例,應(yīng)用ABAQUS有限元三維模擬,分析了斜導(dǎo)管注漿框架梁的適用范圍、受力特點(diǎn)、加固前后邊坡的穩(wěn)定變化及加固效果。斜導(dǎo)管注漿方案將復(fù)合地基理念引入邊坡加固,通過(guò)在邊坡中植入穿過(guò)潛在滑動(dòng)面的鋼管并且注漿,注漿本身讓變形體及附近土體成為復(fù)合土體,同時(shí)起到保護(hù)鋼管免受銹蝕的作用。鋼管類似于加筋體,可直接在滑動(dòng)面上提供阻滑力。應(yīng)用斜導(dǎo)管注漿框架梁克服了坡體里缺少較堅(jiān)硬的錨固段而無(wú)法使用預(yù)應(yīng)力錨索、錨桿框架梁的限制,保護(hù)既有路基,且施工快速。結(jié)論表明斜導(dǎo)管注漿框架梁是一種較理想的處治方法,可為此類治理?xiàng)l件受限的邊坡變形破壞提供有益借鑒和參考。
[Abstract]:In order to analyze the reliability of grouting frame beam with oblique ducts when highway fill slope is subjected to slip cracking and deformation failure, the ABAQUS finite element method is used to simulate the slope deformation disease through a successful treatment example. This paper analyzes the applicable range, stress characteristics, stability change and reinforcement effect of slope before and after reinforcement. The concept of composite foundation is introduced into slope reinforcement by inclined duct grouting scheme. By inserting and grouting steel pipes through potential sliding surfaces in the slope, the grouting itself makes the deformable body and the surrounding soil into composite soil, while protecting the pipe from corrosion. The pipe is similar to a reinforced body. The slanting pipe grouting frame beam is used to overcome the lack of stronger anchoring section in the slope body and can not use the prestressed anchor cable, and the anchor frame beam can protect the existing roadbed. The conclusion shows that the inclined duct grouting frame beam is an ideal treatment method, which can provide useful reference and reference for the slope deformation and failure with limited treatment conditions.
【作者單位】： 交通運(yùn)輸部公路科學(xué)研究院;華杰工程咨詢有限公司;山東省東營(yíng)市公路管理局;
【基金】：西部交通建設(shè)科技項(xiàng)目(2011318740240)
【分類號(hào)】：U416.14

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1 丁小平;;錨桿框架梁在公路施工中的應(yīng)用[J];交通標(biāo)準(zhǔn)化;2013年15期

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本文編號(hào)：1614818