胀缩性

最后建议用fisher判别分析方法进行膨胀土的判别与分类，并建议用反映膨胀土胀缩性、强度特征的指标来验证分类结果。

Finally , the fisher 's discriminant analysis method for identification and classification of expansive soil is proposed and a approach validating the results with the indices that characterize the swelling-shrinkage and strength of expansive soil is suggested .

膨胀土胀缩性评价中有关问题的研究

Some problems in assessment of swelling and shrinkage potential of expansive clay soils

胀缩性土渠道的应力和变形研究

Study on stress and deformation of dilative soil canal

物化型软岩微结构单元特征及其胀缩性研究

Study on microstructure unit character and its swell-shrink property for physico-chemical soft rock

裂土三向胀缩性的室内研究

Laboratory investigations of three - dimensional swell - shrinking characteristics of expansive soils

从岩溶作用认识碳酸盐岩红土的胀缩性

Understanding of the dilation shrinkage characteristic of Guizhou carbonate derived laterite based on karstification

膨胀土物理指标的变异性明显小于胀缩性指标的变异性；

Expansive soil physical index 's variability less than expand and shrink characteristic index ;

试验研究结果表明：在膨胀土中掺入一定量的石灰可有效降低膨胀土的胀缩性；

The swell-shrinking test results show that add lime in expansive soil reduces the swell-shrinking potential .

探讨了如何处理红粘土的胀缩性问题。

And give the suggestions to deal with the shrink-swell properties of red clay . 4 .

南宁膨胀土胀缩性模糊评判分析人工林杉木木材干缩湿胀性质的研究

Fuzzy Evaluation on Swell-Shrink Characteristics of Nanning Swelling Soil Shrinkage and Swelling of Plantation Chinese Fir Wood

膨胀土胀缩性与土性指标之间的关系存在较大的模糊性和地域性。

There are fuzziness and regionalism between the expansion and shrink of soil and the performance indexes .

徐州地区上更新统含钙结核粉质粘土胀缩性研究

Study on the swelling - shrinkage characteristics of the silty clay with calcium - module in Upper Pleistocene in Xuzhou

膨胀土是一种具有胀缩性、裂隙性和超固结性的特殊粘性土。

Expansive soil is a special clay soil , possessing three features of swelling and shrinkage , over-consolidation and fissures .

结合区内工程对上更新统含钙结核粉质粘土的强度、变形及胀缩性进行测试分析，及时为设计、施工提供地质服务，在此基础上对其工程地质特征做探索性的总结。

With projects in this district , the strength , deformation and the swelling-shrinkage characteristic of the silty clay with calcium-mod -

此外，在胀缩性方面，纤维的掺入减小了石灰土的膨胀性，但增加了收缩性。

Furthermore , addition of fibre caused a decrease in swelling potential of lime treated soils while led to an increase in shrinkage potential .

采用压汞法对水泥硬化浆体的孔结构进行了分析。采用比长仪对该水泥的胀缩性进行了研究。

The expansion and dry shrinkage performance and pore structure of hardened paste of the cement have been measured by using the length instument and mercury porosimeter .

膨胀土作为填筑土时，其胀缩性将增大1&4倍；

(ⅱ) If the expansive clay is used as fills , its swell-shrinking content would increase to 1 & 4 times as that of the intact clay .

通过对钛石膏-粉煤灰复合路基回填材料的物理力学性能、胀缩性及路用工程性能的试验研究，探索了钛石膏-粉煤灰回填材料的工程性质和性能。

This paper studied the mechanical properties , expansion and contraction and road performance of backfill material made by waste gypsum from TiO 2 production and fly ash .

化学改良是工程中常用的处治方法，评价改良效果通常也采用土体的强度、胀缩性及塑性指数等指标。

Chemical improvement is a common treatment method in engineering , and the strength , swell-shrinking property and plasticity index etc. of soil body are usually adopted to evaluate improvement effect .

各项胀缩性指标较改性前也有大幅度下降，无荷膨胀率约为改性前的2%，膨胀力约为改性前的5%；

The results also indicate that index for swelling-shrinkage property has reduced , swelling ratio without load is 2 % - 3 % and swelling power is 5 % of those without modifying .

膨胀土是一种特殊土，具有超固结性，裂隙性和胀缩性的特性，膨胀土路堑滑坡问题一直是公路建设中的难题之一。

Expansive soil is one kind of special clay , which has over consolidated , fracture and swell-shrinking characteristics . Expansive soil cutting landslide has always been a difficult problem in highway construction .

文献与调查结果表明，膨胀土中水的浸入与反复胀缩性会导致该土层中粘结式锚杆锚固力降低。

Investigation and literature information show that water immerging and the properties of swelling-shrinking to and fro of expansive soils will result in abating of anchorage force of anchored bar in such stratum .

本文论述在建筑施工中，应注意红粘土的胀缩性和裂隙性对地基承载能力和基础稳定性的影响，建议尽量利用土层较硬质的土作基础持力层。

In construction , attention must be paid to the effect of expansion shrinkage and cracking of the red clay on the bearing capacity of ground-base and on the stability of the foundation .

胀缩性、超固结性和多裂隙性是膨胀土最为鲜明的特性，若不经过改良或者改良填筑施工时质量控制不严，都将严重影响路基的稳定性。

Expansion and contraction , over consolidation and multiple fissures of expansive soil is the most distinct characteristics , if not modified or improved filling construction quality control is lax . will seriously affect the stability of the roadbed .

膨胀土主要是由强亲水性粘土矿物成分&蒙脱石和伊利石组成的，具有膨胀结构以及多裂隙性、强胀缩性和强度衰减性的高塑性粘性土。

Expansive soil is composed of a great deal of strong hydrophilic clay minerals , such as montmorillonite and illite , it has much character , such as expansive construction , many cracks , strong expansive and contraction , intensity decadence .

针对路堤出现纵向裂隙的工程病害，阐述了胀缩性红粘土的试验特性及其作为路基填筑料所导致工程病害的成因，提出了相应的处治措施。

Focusing on engineering disease of embankment longitudinal cracks , the paper illustrates the testing characteristics of expansive adamic earth and the causes of engineering disease by using this material for subgrade filling , also it brings forwards the treatment measures accordingly .

膨胀土是一种富含亲水性矿物并具有特定结构和特殊工程性质的粘土，多以非饱和的状态存在，遇水则膨胀变形，失水则收缩干裂，具有较大的往复胀缩性。

Expansive soil is a special clay which contains the mineral that gets close to water and has particular structure and particular character of engineering , it mostly exists by not-saturated , swelled with water and shrank without water , this character can be changed extensively .

将生物技术引入膨胀土改良问题中，根据不同类型的膨胀土筛选出生命力强、能消除或显著减弱土的胀缩性，且能促进自然生态环境良性发展的菌种。

Biotechnology is introduced to the problem of expansive clay improvement . Some stronger life force microorganism , which can eliminate or lessen swell-shrinking property of expensive clay and promote the benign development of natural ecological environment , is culled according to the different type of expansive clay .

粗粒土具有明显的剪胀剪缩性，为非虎克材料。

Coarse-grained soils exhibit evident dilatancy , and they do not obey the Hook 's law .

在材料不可压缩或胀/缩塑性流动情况下，传统低阶单元有体积闭锁问题。

Traditional low-order elements may suffer the problem of volumetric locking in the analysis of soil under the condition of volume-preserving or dilatant / contractant plastic flow .