粗砂

路由区除北端粗砂区表层海底土为强氧化环境外，其余无论是表层还是1.5m层都属于还原环境和过渡环境区域；

The coarse sand area in the north section of route belongs to strong oxidizing environment , and others areas of route are deoxidizing or transition environments .

提出在CFG桩静载荷试验时，可以采用厚度为50～150mm的石屑+中粗砂、碎石+中粗砂或碎石+石屑垫层，桩间土的承载力发挥系数为0.75～1.0。

The suitable cushion thickness is 50 ~ 150 mm for a mixture of coarse sand and detritus , and the developing coefficient of bearing capacity of the soil between piles is 0.75 ~ 1.0 .

建议将粗砂掺到黏重的土壤里，以提高排水性能。

It is advisable to mix coarse grit into heavy soil to improve drainage .

冻结粗砂土中甲烷水合物形成CT试验研究

Experimental research of formation process of methane hydrate in freezing coarse-grain sand by computerized tomography

利用CT扫描对粗砂土中甲烷水合物形成过程中水分迁移特征的分析

Study of the Moisture Migration during Methane Hydrate Formation in Gritty Soil by CT Scan

粘粒复合体中Pb含量是粗砂中的2.3倍，Cd是粗砂的3.8倍，而Cr是粗砂的2.8倍。

The levels of Pb , Cd and Cr in clay aggregate are respectively 2.3,3.8 and 2.8 times higher than that of coarse aggregates .

本文根据台湾浅滩柱状沉积物的粒度、矿物、化学、微体古生物、~（14）C测年等项目的分析，讨论了该浅滩中粗砂的形成时代及其成因。

Based on the analytical results of granularity , mineralogy , chemistry , micropaleontology , ~ ( 14 ) C chronology of the medium-coarse sands in the Taiwan Shoal , the age and origin of the medium-coarse sands are discussed .

下部中、粗砂层和圆砾层属管涌层；粗颗粒TATB制备技术

The lower parts of the deposits are medium-grained and coarse sand and pebble layer easily piping ; The Manufacture of Coarse TATB

Bt纯蛋白在粗砂土降解最慢，半减期为97.6d；

The degradation of purified Bt protein in S7 ( Intertidal sandy soil ) was slowest with half-life of 97.6d .

孔隙度大于8%、渗透率大于0.5×10-3μm2的样品通常分布于粒度中值在0.50mm以上的粗砂岩中；

The samples which porosity is more than 8 % and permeability more than 0.5 × 10 - 3 μ m2 are generally distributed in the coarse sand-stones with grain size mid-value of above 0.50 mm ;

挤压铝型材门窗、幕墙料经氧化着色后常出现白条、阴阳面、模线、粘附刮伤、V型条纹、粗砂面等表面缺陷。

The surfaces of oxidized extruded aluminium profiles for doors and windows and aluminium glass curtain walls , often appeared defects , such as white streaks , faces of bright and dark , machining grains , adhesion scratch , stripes in form V , rough faces and so on .

由此可见，粗砂糖状白云岩形成于埋深不小于2600m的深埋藏热水白云化环境。

It is hence believed that the coarse saccharoidal dolostones must have been formed in deep burial environments with hot water dolomitization .

参考相关性分析，将与地下水硝态氮含量相关性较高的两个因子（土壤粗砂含量和全氮含量）作为协克里金（Co-Kriging，CK）插值方法中的协同因子，对山东省地下水硝态氮污染进行插值。

Through the correlation analysis , two factors ( Coarse sand percentage and total nitrogen percentage in soil ) were chosen and were using as synergy factors of Co-Kriging to interpolate the groundwater nitrate pollution in Shandong Province .

坝基含卵砾中粗砂振冲加密试验与施工原河床上部平均5m地层结构松散，均需采用振冲加密法进行处理，才能达到设计要求的密实度。

The structure of the stratum with the thickness of about 5 m above the original riverbed is quite loose and then has to be treated by the vibroflotation compaction , so as to meet the compactness required by the design .

为了分析粗砂层上埋深14.5m扩底墩的竖向承载性状，建立了三维有限元非线性数值模型。

In order to analyze the vertical bearing behavior of belled pier embedded in coarse sand at the depth of 14.5m , a three-dimensional non-linear finite-element numeric model is established .

振冲桩按梅花形布置，排距2.6m、桩距3.0m，填料用粗砂或2～8cm粒径碎石。

The arragement of vibration holes are quincunx with a row space of 2.6m and distance between holes of 3m . The filling materials are coarse sand or crushed stone with 2 ~ 8cm size .

粗砂对苯、甲苯和单环芳烃总量（TBETX）总净化率分别为32.06%、21.39%和27.13%；

Total decontamination ratios of benzene , toluene and total aromatic hydrocarbons ( TBETX ) in the coarse sand is 32.06 % , 21.39 % and 27.13 % , respectively ;

不同密度柠条对土壤理化特性的影响：2490丛/hm~2柠条草地土壤的紧实度和2.0～0.2mm粗砂粒含最低，0.2～0.02mm的细砂粒含量最高，1665丛/hm~2次之。

Intermedia on soil physical and chemical character : the soil tight degree and the content of 2.0-0.2 mm Sand granule of C. intermedia grassland of 2490 clusters / hm2 were the lowest and its content of 0.2-0.02 silver sand was the highest , and C.

粗砂桶上方附除尘系统风口。

Large sand vats are fuselage with a dust removing device .

散落的粗砂堵塞设备，同时引起滑倒危险。

Loose grit fouling equipment and also producing a slip hazard .

改善和提高中粗砂的力学性能是桥台地基处理的关键。

The foundation treatment can improve mechanical properties of the sand .

在水淋滤过程中，粗砂中石油释放最快。

The oil releases fastest in coarse sand with water leaching .

单轴压缩下粗砂岩热损伤统计本构模型

Statistical thermal damage constitutive model of grit stone under uniaxial compression

粗砂粒组和粘粒组对芘的吸附能力较大，细砂粒组和粉砂粒组相对较小。

Thus coarse sand and clay had larger capacity for pyrene sorption .

台湾浅滩中粗砂的时代与成因

Preliminary study on age and origin of medium-coarse sands in Taiwan Shoal

深层搅拌法改变粗砂渗透性的试验研究

Study of Deep Mixing Method for Changing Permeability of Sand

河流携带的部分粗砂砾在河床上形成滞留沉积。

Some coarse gravel loaded by the river deposited in the river channel .

中粗砂冻胀主因素分析

Analysis on the factors caused the frost - heaving of medium coarse sand

粗砂渗透系数与抗渗强度概型分布

Probability model distribution of permeability coefficient and anti - permeability strength of sand

巨石、中粗砂填海区风动潜孔锤引孔钻进工艺应用的研究

Application of guided-boring technology of pneumatic down-the-hole hammer in megalithic and coarse-sand see reclamation