1) Improved soil
改良土
1.
Research into cement admixture quantity of improved soil in a certain municipal road;
某市政道路改良土水泥掺量研究
2.
Study on engineering properties of improved soil by GT soil firming agent;
GT型土壤固化剂改良土的工程特性研究
2) Modified soil
改良土
1.
Research purposes: Unconfined compressive strength is the key index for evaluating the performance of modified soil.
研究目的:无侧限抗压强度是评价改良土性能的一个关键性指标,本文对水泥改良和石灰改良的风化泥质板岩的无侧限抗压强度进行试验研究。
2.
Aiming at two planning building railway,according to soil unloading the author gets indoor improvement mixing ratio experiment,analyzes the physical mechanical characteristics of the expansive soil and modified soil,confirms the most optimum mixing ratio,which can be taken as references in design.
指出膨胀土吸水膨胀、失水急剧收缩开裂的特性决定了其不能直接作为路基填料,必须进行改良,针对两条拟建的铁路,通过取土进行室内改良配比试验,分析了膨胀土和改良土的物理力学性质,确定了最佳改良配比,作为设计时的参考。
3) improving soil
改良土
1.
Constructing skill of passenger line basement project improving soil;
客运专线路基工程改良土施工技术
2.
To guarantee the safety of train, it s very important to study the cyclic fatigue of improving soil.
改良土是高速、重载铁路路基建设中重要的填筑材料。
4) soil improvement
土壤改良
1.
Feasibility studies on coal-fly-ash application in refuse dump of coal mine for soil improvement;
用粉煤灰对煤矿排土场土壤改良可行性研究
2.
Application of attapulgite in soil improvement and new type fertilizer development;
凹凸棒土在土壤改良和新型肥料开发上的应用
3.
The technical measures of soil improvement in Longchi Ponkan orchard of Jinping county;
锦屏县龙池片区椪柑果园土壤改良技术措施
5) soil amelioration
土壤改良
1.
Effects of sand covering and soil amelioration on turf performance of white clover retina sod;
覆沙和土壤改良对白三叶网草皮坪用性状的影响
2.
Taking Heidaigou open-pit coal mine as an example,in the mining area,after engineering reclamation of mined land,the theoretical and technologic problems such as soil amelioration,vegetation variety screening and vegetation technologies and so on had been studied during the process of biological reclamation.
以黑岱沟露天煤矿为例,对矿区工程复垦后土地生物复垦中的土壤改良、植被品种的筛选和植被工艺等理论与技术方面的问题进行了研究。
3.
Based on the physical and chemical properties analysis of red mud from Bayer-process, the soil amelioration and planting on red mud in the storage yard of Pingguo Aluminum Industrial Corporation is investigated in laboratory.
在分析拜耳法赤泥理化性质的基础上 ,研究广西平果铝堆场赤泥的土壤改良与种植。
6) soil amendment
土壤改良
1.
It concluded that maize straw could be used as an organic materials for blueberry soil amendment instead of peat.
由此可知,玉米秸秆可以替代草炭作为越橘栽培中土壤改良的有机物料。
2.
The effects of fly ash as sandy soil amendment on the physical properties of soil water were tested by measuring the accumulated water infiltration in the soil.
粉煤灰土壤改良层中含水率较沙土有明显提高,有效水分滞留时间显著增加。
补充资料：粉煤灰改良土壤
粉煤灰改良土壤
fly ash in soil amelioration
fenme一hu一90}l一ong turong粉煤灰改良土坡(fly ash in 5011 ameliora-tion)粉煤灰是由多种颖粒组成的，包括:碳粒、球形颗粒、蜂窝状顺粒、石英等.粉煤灰中粒径大于。.01 mm的物理性砂粒占85%左右，毛细管孔隙度为“%~85%，视密度为2.。~2.29/cm，，容积密度为。.609/cm，。因此，粉煤灰具有质轻、多砂、多孔、渗透快、吸水性及保温性好、吸附性高等特性。同时，粉煤灰中含有植物所需的多种化学营养元素，因此是一种多功效的土壤改良剂。 扮性土城改良各种猫性土壤都质地猫重、通气透气不良、耕性差，水、肥、气、热不协调，因而影响作物生长。利用粉煤灰的物理特性，适量施人粉煤灰(2 .25~4.5 kg/m，)，可以明显地改良土壤质地。主要是:①降低翁土中猫粒相对含量，改良质地;②减小土壤容重.③增加土壤孔隙度，④提高猫土15 cm土层内的温度;⑤提高土坡含水量和田间持水量;⑥调节土壤三相比(固相:液相:气相);⑦减小土镶膨胀率.提高土壤渗透性，防止土坡流失。粉煤灰对猫性土壤物理性质的显著改善.促进了土壤中徽生物活性，有利于养分转化和保温保墒，使水、肥、气、热走向协调，为作物生长创造良好的土壤环境.同时，粉煤灰中含有的硅、铜、锌、钥、钙、铁、锰、翻、硒等营养微量元素，增加了土壤中这些营养元素的含量，改善了土壤养分状况;施用粉煤灰，还可提高土壤中有效磷含量。实践证明，施用适量粉煤灰对小麦、玉米、水稻、大豆等主要作物皆有显著的增产效果，其中小麦平均增产12.7士5.8%，玉米平均增产20.8士10%。另外，对谷子、甘薯、棉花、蔬菜等作物也有一定的增产效果。同时，施用粉煤灰后长出的粮食中蛋白质含量有所增加。 酸性土壤改良对于酸性猫质土壤，除有上述改良作用外，粉煤灰还可以提高土坡中的pH值，使酸性土壤中性化，有利于作物的生长。 盐化潮土的改良向盐化翁性潮土施用粉煤灰，既可改良潮土的翁性，又可起到降盐作用。 在有效硅较低的土壤中，粉煤灰与腐殖酸结合使用，可以提高土壤中有效硅含量，从而改善作物的生长条件。 粉煤灰中含有一定量的有害元素，如锅、铬、铅、砷、汞、苯并(a)花、放射性元素等，经过大量的研究和实践，在施粉煤灰量4.5 kg/mZ以下时，不会对土壤产生污染.对这些土壤中生长的粮食作物也不会造成污染。但由于煤种的不同，粉煤灰中有害元素含量也各有差别，故在施用粉煤灰时应做试验.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条