砾

Both the a-axis and ab-plane dip towards the downstream , the dip angles of the a-axis are low and concentrated, being 7—8°,the ab-plane dips at 7～21°, and the a-axis has more preferred dip of fabrics than the ab-plane; the peak of the grain-size frequency distribution curve of deposits in the Lushan area is in the range of 4 and 5 φ;The quartz sand grains are subangular and have well-developed conchoidal fractures, parallel striatio ns, upturned cleavage flakes,"V"-shaped holes and siliceous deposits.

摘 要：庐山第四纪泥砾沉积物的砾石组构特征表明，砾石岩性与山体基岩基本一致，砾石的等体积球径较小，加权平均砾径较中值砾径大，分选系数大于1，分选性差，φ值相对较小，平均为0.66，F值相对较大，在2左右，F/φ比值介于2.75～4.75，ρ值集中且较小，为22.75%～37.75%，砾石以棱角、次棱角状为主，磨圆较差；a轴和ab面都倾向沟谷下游，a轴倾角集中且较小，为7～8°，ab面倾角为7～21°，a轴较ab面具有更为优势的组构倾向；沉积物粒度频率曲线在4～5Φ范围内表现为峰；石英砂颗粒为次棱角状，贝壳状断口发育，具平行擦痕、上翻解理片、V形坑和硅质沉淀。

The occurrence of ore body was controlled by Xinwuli rock body, Triassic limestone, structure, especial the fragile dilatant fault structure which was formed in the same period of time with rock body.

脆性扩容断裂构造带中普遍发育有角砾岩，包括角砾状花岗闪长岩、角砾状矿石和角砾状大理岩等三种主要类型。

In this research, we try to find a more practical formula for calculating the impact force of boulders. We infer an academic formula from the elastic collision theory. Then, in the experiments, we simulate the impact by debris flow with mixed diameters in order to correct the result formula. We hope we can provide a reference for future slit dam design and debris flow prevention.

本研究目的为利用弹性体碰撞理论，推求出巨砾冲击力之理论式为基础，藉由实验方式，以混合粒径模拟土石流撞击梳子坝，来修正推算出之冲击力理论式，求得一个更符合实际撞击情形之巨砾冲击力计算式，期能对尔后梳子坝设计及土石流灾害防治问题，提供一设计之参考。

This type is accompanied by the structure-salt dissolution breccias,being vein or flamboyancy in cross section while some of them shot through the lead and zinc ore. In fact,the breccias were lead and zinc orebodies themselves.

其角砾成分单一(主要为沥青质灰岩、晶质灰岩)、大小混杂(nmm～nX10m)、无分选，角砾多呈不规则状和次棱角状或次浑圆状，部分角砾具有可拼性，角砾间为砂质充填或无充填，表明它是一套构造和膏溶共同作用形成的角砾岩。

By means of our own constant head permeameter,we have measured the permeability coefficients of soil-rock-mixture s with different gravel content,and the results show that there exists an index relationship between them.

通过自制的常水头渗透仪，测定了不同含砾量时土石混合体渗透系数值，研究发现含砾量与土石混合体渗透系数之间存在指数关系；基于幂平均法，提出了土石混合体复合渗透系数的计算公式，并通过试验结果验证了该式的正确性，为土石混合体渗透系数的理论计算提供了一个简明有用的计算工具

Stone gravel desert was particularly prevalent in the desert between Jammu and mainly distributed in the Libyan Desert Rock, the Atlas mountains, the Piedmont Xishan, and other alluvial fan areas, such as tibbesiti gravel desert, Carrancho gravel desert, covered map Cypriot gravel desert, and so on.

砾漠多见于石漠与沙漠之间，主要分布在利比亚沙漠的石质地区、阿特拉斯山、库西山等山前冲积扇地带，如提贝斯提砾漠、卡兰舒砾漠、盖图塞砾漠等。

This paper analyses the occurrence characteristics and formation conditions for uranium deposits within calderas and brecciated complexes of some granites in China and foreign countries .

本文分析了国内外若干产于花岗岩中破火山口及角砾杂岩内的铀矿床产出特征及形成条件，提出今后应在花岗岩区叠加的火山活动中心，注意寻找角砾杂岩型的铀矿，并把它作为花岗岩中铀矿找矿的新方向予以积极探索。

In the Hunza valleys of the central Karakoram, glacier termini advance below 2,300 metres above sea level.

无论成堆的还是圆锥状的漂砾堆积，其核心几乎全是冰，漂砾总是在不断游动。

Hydraulic fracturing breccia can be joggled joint and the veins have clear fluid evidence. It is found that the fractures were developed in the crust around the uncompacted belt. Hydraulic fracturing experiments were conducted by using composite samples consisting of micrite and sandstone.

通过对大港滩海区沙一段下部岩心观察和薄片分析，识别出水力破裂角砾、砂岩脉、水力破裂裂缝及活化同沉积裂缝4种水力破裂作用产物，水力破裂角砾之间具有可拼合性，脉体具有明显流体作用痕迹；本区水力破裂发生于欠压实带周围的&壳&中。

It works by choosing appropriate gravel, scree, talus decries, coarse sand, medium sand, then ram them to be closely knitted. The sand gravel cushion can increase the bearing capacity of weak groundwork.

这种垫层法是用碎石、卵石、角砾、圆砾、砾砂、粗砂、中砂或石屑等坚硬、较粗粒径的回填材料，经合理级配并夯压密实后形成持力垫层，其主要目的是为了提高浅层软弱地基或不均匀地基的承载力。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。