本文選題：邊坡工程 + 格構(gòu)錨固�。� 參考：《巖石力學(xué)與工程學(xué)報》2017年04期

【摘要】：格構(gòu)錨固工程在滑坡防治中的應(yīng)用已越來越廣泛,但其作用機制研究卻遠滯后于實際應(yīng)用。針對全長黏結(jié)注漿工況下格構(gòu)錨固工程的受力情況、破壞模式及作用機制,開展格構(gòu)錨固工程大型物理模型試驗。試驗結(jié)果表明,全長注漿格構(gòu)錨固可有效提高滑坡的穩(wěn)定性;錨固力在滑面處最大,向兩端遞減,格構(gòu)所承受錨固力很小,其基底反力呈跨中大節(jié)點小的近三角形分布;錨桿在滑面位置發(fā)生剪切變形,格構(gòu)僅發(fā)生輕微撓曲變形,滑坡體發(fā)生整體滑移;錨桿發(fā)揮剪切抗滑作用,為主要抗滑構(gòu)件,格構(gòu)則保證了滑坡的整體穩(wěn)定性;全長注漿工況格構(gòu)錨固設(shè)計應(yīng)注重校核錨桿的抗剪切能力,格構(gòu)部分建議采用構(gòu)造配筋設(shè)計。試驗研究結(jié)果揭示了全長黏結(jié)注漿工況下格構(gòu)錨固體系的力學(xué)抗滑機制,可供其他類似工程參考和借鑒。
[Abstract]:The application of lattice Anchorage engineering in landslide prevention and control has been more and more extensive, but the study of its action mechanism lags far behind the practical application.Aiming at the stress, failure mode and action mechanism of latticed Anchorage engineering under the condition of full-length cement grouting, the large-scale physical model test of latticed Anchorage engineering is carried out.The test results show that the full-length grouting lattice anchoring can effectively improve the stability of the landslide, the anchoring force is the largest at the sliding surface and decreases to the two ends, the anchor force of the lattice structure is very small, and the reaction force of the base is nearly triangular distribution with small span and large joints.The shear deformation of anchor rod occurs in the position of sliding surface, only slight flexural deformation occurs in lattice structure, and the whole slide occurs in landslide body, and the anchor rod plays the role of shear anti-slide, and the lattice structure ensures the overall stability of landslide.In the design of lattice Anchorage under full-length grouting condition, the shear resistance of anchor rod should be checked, and the structural reinforcement design should be adopted in the lattice structure part.The experimental results reveal the mechanical anti-sliding mechanism of latticed Anchorage system under the condition of full-length bond grouting, which can be used as reference for other similar projects.
【作者單位】： 中國地質(zhì)環(huán)境監(jiān)測院;長安大學(xué)地質(zhì)工程與測繪學(xué)院;陜西省地質(zhì)環(huán)境監(jiān)測總站;
【基金】：“十二五”國家科技支撐計劃(2012BAK10B01) 國家級地質(zhì)環(huán)境監(jiān)測與預(yù)報項目(1210800000022) 國土資源大調(diào)查項目(1212011220145)~~
【分類號】：TU476;P642.22

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