卷取机由气动胀缩卷筒组成。
胀缩是一个可逆过程。
结果表明膨胀土的胀缩变形过程并不完全可逆。
It was shown that the swelling-shrinkage deformation of expansive soils was not completely reversible.
研究了膨胀土路基发生胀缩沉降的基本力学条件；
The fundamental mechanical conditions of the swell-shrink and settlement are studied.
木材随含水量变化发生膨胀或收缩，这种现象称为胀缩。
The swelling or shrinkage with changes in moisture content is known as movement.
膨胀土胀缩等级评判是膨胀土地区工程建设的重要工作。
The swell shrink grade judgment of expansive soil is an important work for engineering construction in the expansive soil area.
针对膨胀土特殊工程性质，分析了胀缩变形量的影响因素。
Based on special engineering properties of expansion soils, influence factors of swell-shrink distortion are analyzed.
特别是对影响膨胀土胀缩特性的某些因素作了较深入的研究。
Especially, the factors influencing swell and contraction properties of expansive soil are thoroughly investigated.
当压力一定时，土的胀缩变形幅度与水分变化量呈线性关系。
When pressure is kept constant, the relationship between the magnitude of soil expansion and shrinkage deformations and the moisture movement appears linear.
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.
东区段主要的地质灾害是地面沉降、地裂缝和膨胀土的胀缩灾害。
In the east section, the hazards are mainly ground subsidence, ground cracks and expansion and shrinkage of expanded soils.
树木根系吸水引起土壤含水率显著降低，从而导致胀缩性地基沉陷。
Soil water extracted by tree roots can cause significant decrease of the soil water content and eventually lead to ground settlement.
将该方法应用于膨胀土的胀缩等级分类，其合理性和有效性得到了验证。
The method has been applied to determine expansive scale of expansive soils and its reasonableness and effectiveness is proved by the example.
荷载对干湿循环过程中膨胀土的胀缩幅度及强度衰减具有明显抑制作用。
The effects of load in certain range were to restrain the swelling-shrinkage deformation and the attenuation of shear strength.
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.
文中对悬浮粒子间多次散射作用不再限于胀缩波，而且也包括了热波和粘滞波。
The thermal wave and the viscous wave as well as the compressional wave are considered in the multiple scattering process among suspended particles.
柳州市广泛分布的红粘土及次生红粘土层强度普遍较高，但具有弱-中等的胀缩性。
The red clay and secondary red clay widely distributed in Liuzhou City have low-middle swell shrinking property as well as more higher strength.
膨胀岩土是自然地质过程中形成的由强亲水性矿物构成的一种具有显著胀缩性的地质体。
Swelling rock, formed in natural geologic processes and composed of a great deal of strong hydrophilic clay minerals, is of remarkable shrink-swell properties.
如色彩的暖和感、距离感、重量感、胀缩感、软硬感等，人们对它大体上有着相似的看法。
If colorific is warm feeling, distance feeling, weight feeling, bilge shrink feeling, soft good sense, people is having similar view to its substantially.
研究了路基土场土的物理性能、矿物组成及胀缩特性，采用多种方法综合评价土场土膨胀潜势；
The physical properties, mineral composition and expansive-shrinkage characteristics of the borrow soil were studied, and the evaluation of expansive potential was carried out.
本文分析了碾压砼路面板的胀缩过程，提出初始热压温度、有效热压温度概念和板平均最高温度。
Through the practicing wo rk get every technology parameter such as temperature pressure and time for the hot press.
实验表明：DPB是一种性能较好的木材阻燃剂，但DPB处理木材的抗胀缩率和阻湿率值均很低。
The experiments showed that DPB is a well wood fire retardant. but ASE and MEE of modified wood are low.
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.
认为土壤胀缩运动主要决定于土壤粘粒的含量，同时季节性冻融作用与干湿交替作用是导致土壤胀缩运动的直接因素。
Moreover, seasonal freezing and melting and seasonal drying and wetting are the direct factors causing soil to expand and contract.
这种新方法需要一种专门的高效率的机械装置。对接坡口焊是一种连接迅速的施焊工艺，它可以有效地保证金属盖板的胀缩。
The welted joint, executed in this way, is a rapid means of jointing and effectively allows for expansion and contraction of the metal covering.
从分析路面温度场入手，研究了多孔混凝土基层的温度翘曲应力和温度胀缩应力，据此分析了多孔混凝土基层接缝的设置依据和缝间距离。
Started with the analysis of temperature field, the temperature-warping stress and temperature contraction stress of porous concrete are studied, and the location of joint are discussed.
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.
文章论述了我国地区性土（黄土、红土和胀缩土）的地理分布和工程地质特性，分析了各类地区性土的物质成分和微结构特征以及它们的区域性变化规律。
The geographic distribution of regional soils such as loess soil, laterite soil andexpansive soil in China and their special engineering properties are briefly described in this paper.
膨胀土是一种吸水膨胀、失水收缩、胀缩变形显著的粘性土，其主要工程性质对公路有比较强的破坏作用，要减少膨胀土对路基路面的破坏，必须从设计上采取措施加以处理。
Expansive soil is a kind of swell-shrinking clay with strong damaging to highway. In order to lessen the damage, some efficient measures must be taken with from design.
膨胀土是一种吸水膨胀、失水收缩、胀缩变形显著的粘性土，其主要工程性质对公路有比较强的破坏作用，要减少膨胀土对路基路面的破坏，必须从设计上采取措施加以处理。
Expansive soil is a kind of swell-shrinking clay with strong damaging to highway. In order to lessen the damage, some efficient measures must be taken with from design.
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