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1)  subgrade of expansive rock
膨胀岩路基
2)  swelling roadbed
膨胀性路基
3)  swelling soil subgrade
膨胀土路基
1.
Infiltrating properties of modified swelling soil subgrade;
改性膨胀土路基受水特性
2.
Through the site test-road monitoring,indoors modeling test and other technical methods,it proposed a computing theory for the design of the swelling soil subgrade,improved the design methods for the reinforced swelling soil subgrade and developed an economical and proper treatment method for the swelling .
本文系统地研究了公路建设中遇到的膨胀土路基设计与施工等技术问题,通过现场试验路监测、室内大型模拟试验等研究方法,提出了膨胀土路基的设计计算理论,完善了加筋膨胀土路基的设计方法,开发了膨胀土路基经济合理的处治方法,为湖南省膨胀土路基设计和施工技术指南的编写以及相关技术规范的修订提供了科学依据。
4)  expansive soil roadbed
膨胀土路基
1.
Water-destroyed disaster of expansive soil roadbed and it s forecast based on rough neural network;
膨胀土路基水毁灾害及其粗糙神经网络预测
2.
Forecast mode of water-destroyed disaster for expansive soil roadbed
膨胀土路基水毁灾害的预测模型
3.
Connecting with the practice of Xi an-Nanjing railway engineering,and starting from various diseases of the expansive soil roadbed,and according to the engineering features of the expansive soil and the reasons of the diseases,this paper puts forward some measures and methods for preventing these.
结合西安南京铁路工程实践,从膨胀土路基出现的各类病害入手,根据膨胀土的工程特性及其病害产生的原因,提出了病害防治的措施及处理方法。
5)  expansive soil subgrade
膨胀土路基
1.
Study on determination of treatment depth for expansive soil subgrade in Hefei;
合肥地区膨胀土路基处置深度问题探讨
2.
In allusion to the subgrade damage form of expansive soil, the cause of damage is analyzed and the solving measures of expansive soil subgrade are expounded combining with one case, which can provide reference for treating this kind of subgrade.
针对膨胀土公路路基的破坏形式,分析膨胀土路基破坏的原因,并结合某高速公路膨胀土路基病害探讨膨胀土路基的处治措施,可为此类路基处治提供参考。
6)  swelling soil foundation
弱膨胀土路基
1.
It introduces the scheme design and construction technology of the swelling soil foundation treatment with lime-soil compaction pile in the special railway line K15+000~K15+100 in Chengzhuang of Jincheng coal group in detail,and analyzes the quality check contents and application effect,which will supply reference to the similar projects.
详细介绍了晋城煤业集团成庄铁路专用线K15+000~K15+100地段所采取的灰土挤密桩处理弱膨胀土路基的方案设计和施工工艺,并对其质量检验内容和应用效果进行了分析,以供类似工程参考借鉴。
补充资料:膨胀珍珠岩
分子式:
CAS号:

性质:一种天然酸性玻璃质火山熔岩非金属矿产,包括珍珠岩、松脂岩和黑曜岩,三者只是结晶水含量不同。由于在1000~1300℃高温条件下其体积迅速膨胀4~30倍,故统称为膨胀珍珠岩。一般要求膨胀倍数>7~10倍(黑曜岩>3倍,可用),二氧化硅70%左右。均为露天开采。不用选矿,只需破碎,筛分即可。可用作过滤剂、催化剂、分子筛以及橡胶、化肥、农药的载体。广泛用于建筑、冶金、石油、机械、轻工、水电、铸造、医药、食品、农林园艺等部门。经常温导热系数0.0245~0.048W/(m·K),高温导热系数0.058~0.175W/(m·K),低温导热系数0.028~0.038W/(m·K),最高使用温度80℃。用作高效保温、保冷填充材料。

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