- mold case
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模型箱的英文
例句與用法
- Considering the similitude law for shaking table test , we study the test results and obtain some conclusions which are a ) generally , the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration , b ) when the intensity is on and above eight degree , the silty soil deposit will be liquefied dramatically , c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great , the relationship is represent as a concave curve , or else as a protruding curve and tends to stability . ( 3 ) based on the triaxial compression test and the resonant column test , some studies are made such as a ) the duncan - chang parameters of constitutive model , b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits . in order to deal with the test data , a computer program is compiled
( 2 )利用小型振動(dòng)臺(tái)進(jìn)行了k _ 0固結(jié)狀態(tài)下粉土的振動(dòng)液化模擬研究，通過分析正弦荷載作用下的試驗(yàn)資料，驗(yàn)證了粉土的孔隙水壓力增長(zhǎng)模式的合理性；從微分方程推導(dǎo)了基于土體振動(dòng)臺(tái)模型試驗(yàn)的相似律，并從模型實(shí)體、孔壓時(shí)程曲線和相似律等方面做出了分析，得出了如下結(jié)論：在小型振動(dòng)臺(tái)試驗(yàn)中，模型箱中的粉土都發(fā)生了液化，液化的時(shí)刻和輸入加速度幅值有關(guān)，而對(duì)頻率的變化不太敏感；粉土在相當(dāng)于8 9度地震烈度的加速度幅值作用下可能產(chǎn)生嚴(yán)重的液化；孔壓的增長(zhǎng)曲線形狀與施加的荷載有關(guān)：當(dāng)施加荷載為由小到大的形式時(shí)，曲線形狀為上凹的曲線；當(dāng)施加荷載為等幅的正弦荷載或荷載幅值由大到小時(shí)，曲線形狀為上凸的曲線，且逐漸趨于穩(wěn)定。 - Secondly , a study of one kind of composite soil nailing , that is , a combination of soil nails with waterproof cement - soil mixing pile wall , was carried out by laboratory model test , the retaining structures were modeled according to a similarity rule that geometric length of the structure is in inverse proportion to deformation duration of the structure and the staged excavation and retaining was carried out during experiment to simulate actual construction procedures in situ
其次，通過模型試驗(yàn)研究了土釘與水泥土樁聯(lián)合支護(hù)型式的變形、破壞形態(tài)以及作用原理。試驗(yàn)模型箱為無(wú)蓋六面箱體，內(nèi)空凈尺寸長(zhǎng)寬高為3 . 4m 1 . 0m 2 . 0m ，試驗(yàn)填料為重塑土，土釘采用硬質(zhì)鋁管。