porosity ratio meaning in English
孔隙比
Examples
- The black earth is a kind of alfisol , with a thick layer of humus , loose texture , high fertility , high porosity ratio , poor permeability and a high content of clay , which is suitable for cultivation
摘要黑土是一种腐殖质层厚，质地松散，肥力很高，孔隙比较大而透水性差，粘粒含量高，适于耕作的淋溶土。 - The soft foundation has the characteristic of " three low and three high " , namely high moisture content , high porosity ratio , high compressibility , low intensity strength , low permeability , low coefficient of consolidation
软土地基具有“三低三高”特性，既高含水量，高孔隙比，高压缩性，低强，低渗透性，低固结系数。 - The unconfined compressive strength , shearing strength and permeabi lity of stabilized soils were tested in laboratory , the strength of contaminated composite soils sampled with different ph and soaped in corresponding ph were compared . the results from experiments indicate that there exists a certain relationship between the soft soil properties and the unconfined compressive of grouted soil . with the increase of water content , porosity ratio , degree of porosity , plasticity limit , liquid limit and liquid index , the compressive strength of cement - sodium silicate - stabilized soil decreases , while increases as the bulk weight and compressibility modulus
通过对水泥?水玻璃加固土的无侧限抗压强度试验，以及用不同酸碱性水制成与养护的固结土所进行强度对比试验，得出软土的物理力学性质指标与加固土的抗压强度之间存在一定的相关关系，即随着含水量、孔隙比、孔隙度、液塑限及液性指数的增加，水泥?水玻璃加固土的抗压强度相应地降低；而随着原状土的容重、压缩模量的增加，水泥土的抗压强度也随之增加。 - Through comparative analysis to the test data of tow sampling methods in drilling hole and sampling method in shaft , it was found out by the author that the drilling sampling method has obvious disturbance and depression to the soil sample , which caused the soil sample ' s dry density to be increased , porosity ratio to be decreased , filtration coefficient to be decreased , and modulus of compression to be increased
笔者通过对钻孔两种方法获取的土样与竖井土样试验数据的对比发现，钻孔取样对土样有明显的扰动和压密作用，造成了土的干密度增大、孔隙比减小、渗透系数降低、压缩模量增大。 - With the development of human society , because of the lack of sustainable utilization consciousness , and the eager for quick success and instant benefit , the black earth suffered excessive cultivation and management , causing the reduction of its recycled ability , decrease in organic content , porosity ratio , fertility dropped and the properties of water retaining and water retention , which make the black soil harden and degenerate seriously
但是随着人类社会的发展，在缺乏保护和可持续利用意识、急功近利思想影响下，黑土遭到过度垦殖和掠夺式经营，人类对其活动范围远远超过了其再生能力，导致有机质含量减少，肥力下降，孔隙比减小，保水持水能力降低，土壤板结，黑土严重退化。