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- cemented soil columns 水泥搅拌桩
- Some evaluable conclusions are obtained as following: 1) the cement quantity is most important among all the factors which influence the cemented soil strength. 本文通过研究,得到以下结论:1)在众多水泥土的强度影响因素中,水泥掺量依然是最为重要的一个,这一结论对水泥加固有机质软土同样成立。
- Humus was added into nonorganic silt to clarify the effect of a variety of additives on the cemented soil performance. 在去除有机质的黏质粉土中加入腐殖酸,研究了经某种液态添加剂改良后的水泥土特性。
- The long-term unconfined compression strength of cemented soil is the important design parameter of cemented soil mixed pile composite foundation. 水泥土的无侧限长期抗压强度是水泥土搅拌桩复合地基设计的重要参数。
- deep cement mixing (DCM) soil column 水泥土桩
- For the research on characters of cemented soil of SMW(soil mixing wall) technology in medium-hard strata is shortage,so the application in medium-hard soil is restrained. 针对SMW工法缺乏对中硬地层的水泥土性能研究,利用首例北京地区在中硬地层中地铁基坑工程采用SMW工法搅拌后的水泥土,进行了三轴压缩试验。
- The result indicated that the leach-loss quant ity of K+ from lignin compound was less than that from conventional soluble fertilizer in different soil columns. 结果表明:在不同的土壤柱中,木质素复合肥的钾淋失量均显著低于普通水溶性化肥中钾的淋失量。
- By leaching experiment in soil columns, the purification and migration characteristics of arsenic in loessial soil were stud-ied. 通过土柱淋滤试验,从动态角度研究了黄土性土壤对砷的净化作用及迁移规律。
- An experiment of water, salt and heat movement in soil columns in the lab under simulated evaporation conditions was conducted. 在模拟蒸发条件下,通过室内土柱实验,对土壤水盐热的迁移做了初步研究。
- Benfuracarb and carbofuran move to lower in soil column with more precipitations. 对丙硫克百威在湖南几种土壤中的迁移和降解进行了研究。
- The removal of PCP in the upper 0.15 mm layer of the soil column accounted to 63.7% and 73.0% respectively after 24 h and 48 h irradiation. 结果表明:在风干土壤中;只有土柱表层土壤中的PCP发生了光化学反应;且具有较快的光转化速率; 24 h、48 h后;土壤表面0.;15 mm厚的土层中PCP的光转化率分别达到63
- A FORTRAN program has been processed to solve the numerical equation and has been tested by the experiment of vertical soil column. 用FORTRAN语言编写数值计算的程序,并用垂直土柱试验验证了程序的可行性,也与Parlange解法作了比较。
- Effects of PAM application rate and method on saturated hydraulic conductivity were studied in laboratory through a soil column leaching experiment. 通过室内土柱淋洗试验,研究了PAM施用量和施用方式对不同碱度土壤饱和水力传导度的影响。
- By means of dynamic lab-experiment, we simulate the migrating and transforming course of ammonia nitrogen in polluted river permeating in soil column. 方法通过室内动态实验模拟污染河流中的氨氮渗入地下后的迁移转化过程。
- Soil column is used to study the characteristics of calcium movement in uprightness direction in Brown-soil which is in a middling rainfall condition. 采用室内土柱淋溶模拟试验方法,以棕壤为供试土壤,研究了在一次中等程度的降雨条件下钙肥在土壤垂直方向上的淋溶迁移特征。
- Through experiments of static degradation and dynamic soil column, both purification efficiency of phenol and influences of reed wetland soil were studied. 摘要用动态土柱法和静态降解法研究了芦苇湿地土壤对苯酚的净化效果及其影响因素。
- Soil column method was used to study the characteristics of the movement, transformation, and leach of urea-N in soil added by different ways of the fertigation. 摘要采用室内土柱模拟试验方法,研究了不同灌溉施肥方式下尿素态氮在土壤中的迁移、淋溶和转化特徵。
- An influent quality experiment of artificial soil rapid infiltration s ystem has been conducted by using both soil column and pilot-scale plant filled with artificial soil. 利用人工土柱和中试工程开展了人工土快滤处理系统的进水水质试验。
- He cemented the bricks into place. 他用水泥砌砖。
- The floor has been cemented over. 地板上铺了一层水泥。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries