Focusing on engineering disease of embankment longitudinal cracks,the paper illustrates the testing characteristics of expansive adamic earth and the causes of engineering disease by using this material for subgrade filling,also it brings forwards the treatment measures accordingly.

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Reinforced earth technology has been applied extensively to embankment design and construction at present.

加筋土技術(shù)是現(xiàn)代路堤設(shè)計與施工中廣泛應(yīng)用的新技術(shù)之一日韩三级视频免费。

With consideration of various analysis methods for reinforced embankment, the model of homogeneous earth slope is setup on the base of Finite Element Method. Using ANSYS-APDL language, the nonlinear finite element program for static analysis of the high reinforced embankments is made in this paper.

在綜合考慮加筋路堤各種分析方法的基礎(chǔ)上，利用ANSYS的APDL語言一级A片大片免费上线观看，建立了基于有限元法的加筋路堤參數(shù)化模型自拍偷拍第六页，編寫了對加筋路堤進行穩(wěn)定性分析的非線性有限元程序，并且綜合各種影響因素對加筋路堤結(jié)構(gòu)進行優(yōu)化設(shè)計。

The test results show the principle of variation of pressures on culverts beneath high fill is similar, it is that, even if the embankment is filled up to a higher height, the earth pressures can still partly transfer to the top of culvert, as a result the pressures on the culvert increase nonlinearly with the variation of height of fill and further the pressures are obviously lower than theoretical value by σ=γH.

模型試驗和數(shù)值模擬計算結(jié)果表明黄页网站大全免费，當填土達到一定高度后丁香五月婷婷黄色网站，高填方涵洞上方將產(chǎn)生明顯的拱效應(yīng)，但由于涵洞填土為破碎的巖土國產視頻自拍，其拱效應(yīng)與巖石中開挖洞室上方的拱效應(yīng)不同三级片网站视频免费看，高填方涵洞上方填土產(chǎn)生的"土拱"效應(yīng)具有不穩(wěn)定的特點，表現(xiàn)為隨著填土高度的增加仍有部分土壓力傳遞到涵洞上精品国产看高清国产AV毛片，涵頂土壓力隨填土高度成非線性增加。

Therefore,test and research on subgrade treatment of cataclastic expansive rock,retaining and protection of high cut slope in crushing and weak rock,and new retaining structure types of high embankment slope,such as piles-plate wall of prestressed anchor wire,reinforced earth retaining wall of new type straps,are conduc.

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