direct shear 中文意思是什麼
direct shear
解釋
直剪-
Strength behavior of rockmass containing coplanar close intermittent joints under direct shear condition
共面閉合斷續節理巖體的直剪強度研究 -
At the same time, the parameters of shear strength have been estimated using jrc - jcs model, the comparison study in this paper proves that the results of estimate - method and direct shear test match very well and the estimate - method have a wide foreground in application
對比研究表明， jrc - jcs模型的估算結果和直剪試驗得到的結果相當吻合，結構面抗剪強度的經驗估算方法具有廣闊的應用前景。 -
Standard test method for performing laboratory direct shear strength tests of rock specimens under constant normal force
在恆定的常規應力下進行巖石樣品的實驗室直接剪切強度試驗的標準試驗方法 -
Testing of direct shear strength for rock and soil
巖土室內直接剪切強度的測定 -
In this paper, the influence of cycles of drying and wetting on strength and deformation are studied by means of routine direct shear apparatus, triaxial apparatus and light consolidation apparatus which include : the influence of force of constraint on strength, the total stress strength of expansive soils with different saturation degree, the influence of cycles of drying and wetting on the total stress strength, the relation between saturation degree and compression modulus and that between saturation degree and void ratio, the influence of cycles of drying and wetting on the effective stress strength, the relation between saturation degree and generalized suction
本文利用常規直剪儀、三軸儀以及輕便固結儀，分別對非飽和膨脹土的強度和變形特性以及干濕循環對強度和變形的影響進行了一系列的試驗研究。以飽和度、干濕循環次數為變量，分別探求了外力約束對膨脹土強度的影響，不同飽和度膨脹土的總應力強度特性，干濕循環對非飽和膨脹土總應力強度的影響，飽和度與壓縮模量以及孔隙比的關系，干濕循環對飽和膨脹土有效應力強度指標的影響，廣義吸力與飽和度的關系，建議了一組計算非飽和膨脹土變形及強度特性的經驗公式。 -
To avoid this problem, the authors improved the equipment of lab large - scale direct shear tests and developed a special new one which overcame the disadvantages of normal equipment, made the result more accurate and could be used to analyze the shear surface and dilatability of the mixture
本文對室內大型直剪試驗進行了改進，研發了新型的土石混合料室內大型直剪試驗系統，克服了常規直剪儀存在的主要問題，使得試驗結果更精確、可靠，試驗分析更完善。 -
By direct shear for and normal triaxial shear tests of non - saturated desert sand, the parper studied the effect of water content and dry density on the strength of the non - saturated desert sand, and set up the code of this sand. based on the plane strain test of non - saturated desert sand slope, the paper analysed the destruction way of the excavaion side during the construction by means of adding water, and brough forward a formule that calculates the allowable of excavation and pile hole
通過非飽和沙漠砂直剪試驗和常規三軸剪切試驗，研究了含水量和干密度對非飽和砂強度的影響，建立了這種砂的強度準則。通過非飽和沙漠砂邊坡室內平面應變試驗，分析了沙漠井場浸法施工中就基坑壁的破壞方式，推導出了基坑和樁孔容許開挖深度的計算公式。 -
( 1 ) systematic triaxial compression tests are made for the sand reinforced by various national geosynthetics. comprehensive investigations into the interaction characteristics are also made between sand / lime fly ash and various national geosynthetics by direct shear tests and pull out tests, which can help choosing geosynthetic type and understanding the geosynthetic reinforcement mechanism ; ( 2 ) this paper is also firstly systematically presents the results of a comprehensive investigation into the interaction characteristics between lime fly ash and various national geosynthetics ; ( 3 ) by non - linear fem, the influence of the modulus of geosynthetics, the thickness of the soft ground and the width of the foundation on the effectiveness of geosynthetic reinforcement are also studied ; ( 4 ) the main conclusions are as followed : ( geotextiles are likely to be suited for projects allowing high displacement, polyester warp knitting geogrids and oriented geogrids for projects allowing medium displacement, glass fiber geogrids for projects allowing low displacement and geonets for secondary projects. ( the confining effect of fill material to act on different kinds of geosynthetics varies largely, which must be considered
（ 1 ）本文利用三軸壓縮試驗，比較各種國產土工合成材料對砂土的加筋效果；利用直剪試驗和拉拔試驗，比較各種國產土工合成材料與砂土或石灰粉煤灰的界面摩擦特性，深入研究土工合成材料的加筋機理，首次明確提出加筋土工合成材料的選型原則； （ 2 ）本文首次系統地研究了石灰粉煤灰與各種國產土工合成材料的界面摩擦特性； （ 3 ）本文採用有限元法，系統研究了加筋模量、軟土地基厚度、基礎寬度等因素對土工合成材料加固軟土地基效果的影響； （ 4 ）本文主要結論如下： （無紡土工織物適合用於允許大變形的加筋土工程；滌綸纖維經編土工格柵和塑料拉伸土工格柵適合用於對變形有較嚴格要求的加筋土工程；玻璃纖維經編土工格柵適合用於對變形有嚴格要求的加筋工程；土工網適合用於低等級的加筋土工程。 -
Test method for in situ determination of direct shear strength of rock discontinuities
巖石間斷性直接剪切強度的現場測定方法 -
Wu, po - kai, 2003, “ particle size effects on soil - reinforcement interaction in direct shear tests ”, ph. d. dissertation, department of civil engineering, the university of tokyo, japan
吳博凱， 1996 ， 「巖樣熱傳導試驗及深巖層地溫推估模式」 ，碩士論文，土木工程研究所，國立交通大學 -
Based on laborary study with triaxial shear tests, direct shear tests, compression tests, and expansiveness tests of the expansive soil in an ' kang area, shanxi province, p. r. china, the influence of structural behavior on expansibility, shearing strength and compression is discussed
本文對安康地區膨脹土進行了較為詳盡的室內靜三軸試驗，直剪試驗，壓縮試驗，膨脹性試驗，討論了結構性對其壓縮性、強度特性、膨脹性的影響。 -
It is necessary to carry out the comparison study between the estimate - method results and direct shear test results in order to improve the reliability applying the estimate - method to engineering practice. in this paper, the nature rock joint samples have been selected differently in lithology and dimension based on the extensive investigation. the parameters of shear strength have been acquired based on a series of direct wet and dry shear tests using multistage direct shear test
本文在對野外結構面的地質調查的基礎上，選取了不同巖性、不同尺寸的自然結構面試樣，採用單試件法進行了一系列乾燥狀態和飽和狀態的直剪試驗，得到結構面抗剪強度參數；同時，運用jrc - jcs模型對各塊試樣進行結構面抗剪強度的經驗估算，求取了結構面抗剪強度參數。 -
The friction coefficient, critical vertical loads and critical frictional resistance strength have been worked out by means of the pullout tests under the different vertical loads, analysis of frictional characteristics between soil and material and analysis of the different work mechanism between direct shear test and pullout tests. the creep characteristic parameters of some typical reinforcement materials have been obtained by the creep tests under the loads for a long time and the rheological analysis
對幾種典型筋材在不同法向荷載下進行了拉拔試驗，並進行了筋材與土介質的界面摩擦特性分析，直剪試驗與拉拔試驗不同機理分析，找出了影響摩擦特性試驗結果的主要因素；得出了筋材在工作荷載階段的摩擦系數、臨界法向中南大學博士學位論文荷載和臨界摩阻強度。 -
Geotextiles - determination of friction characteristics - direct shear test
土工織物.摩擦特性測定.直接剪切試驗 -
Secondly, in combination with basic physical experimentation of the henan item “ study on embankment settlement mechanism and development rule for highway in the silt soil region ”, the mechanics speciality of silty soil is completely cognized and realized, through the laboratory experimentation of three kind of classical silty soil in puyang city. the experimentation include laboratory physical mechanism test, static compaction test, direct shear test, permeability test. and also analysis the influence of water content on soil ’ s shear strength, permeability and other mechanism character
其次，結合河南項目「粉砂土地區高速公路路基沉降機理及其發展規律研究」課題的基本物理試驗部分，通過對濮陽市三種典型的粉質土的室內物性力學性質試驗、標準擊實試驗、直接剪切試驗、滲透試驗等一系列試驗研究，對粉質土的各力學特性進行全面系統的認識和了解，分析了含水量對粉質土的抗剪強度、滲透性等力學性質的影響。 -
Standard test method for direct shear test of soils under consolidated drained conditions
在固定排水條件下土壤直接剪切試驗的標準試驗方法 -
Based on the direct shear test of double - asperity joints include two tooth - shaped asperities, the shear properties of double - asperity joints are analyzed according to the difference of two asperities ' angles, and the failure mechanism of double - asperity joints and the effects to joints ' failure mode and shear strength produced by the order of two asperities are discussed
摘要通過對由兩個齒形凸體組合構成的雙齒節理進行直剪試驗，分析了兩個齒形凸體的起伏角相等時和不等時雙齒節理的剪切特性；觀察和分析含兩種不同起伏角凸起體的雙齒節理的漸進破壞過程與機理，以及兩個齒形凸起體的排列順序對此類雙齒節理的剪切強度和變形特性的影響。 -
? he resistant impact of rootstalks is from 30. 2j to 60. 4j. the resistant impact of rootstalks from the areas one crop a year increases 37 % more than that from areas two crop a year ; ( 3 ) the direct shear strength of soil rootstalk composite can be scribed by coulomb equation
玉米根茬的抗沖擊能量為30 . 2j 60 . 4j ，在相同試驗條件下，一年一熟玉米根茬的抗沖擊能量比一年兩熟玉米根茬的抗沖擊能量增大14 23 ；根茬徑向抗沖擊的沖擊能量比軸向大約23 。 -
Lab large - scale direct shear tests are broadly adopted in engineering due to their obvious advantage, even though the test principle is slightly departure from the mohr - coulomb law
但由於大型直剪儀自身結構及性能存在許多問題，使直剪試驗及結果與其試驗原理的應用條件及混合料的實際強度具有一定的偏差。 -
The effect of matric suction on the strength and deformation as well as water content of intact loess are studied in this paper. using the direct shear testing equipment and consolidation testing equipment and modified triaxial testing equipment in the university of logistical engineering in chunqing. 4 groups ( 16 specimens ) consolidated drained direct shear tests and 2 groups ( 6 specimens ) consolidated tests as well as 1 group ( 3 specimens ) triaxial shear tests with controling matric suction were conducted
用新研製的國內第一臺非飽和土固結儀、國內第一臺非飽和土直剪儀和經過改進的非飽和土三軸儀，做了4組16個非飽和土直剪試驗； 2組6個非飽和土固結試驗； 1組3個控制吸力的非飽和土三軸試驗。
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