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Colluvial deposits at the foot of valley slopes usually affect only narrow strips of valley bottom.

河谷坡脚处的积体通常只影响到谷底较窄的地带。

Rock slopes and colluvial slopes are common natural slopes in mountain areas. For simplicity, the slope stability analysis is often performed by two-dimensional limit equilibrium methods in terms of circular slide surfaces, which are not usually found in rock and colluvial slopes.

岩石边坡及积层边坡为山坡地常的自然边坡,许多上述边坡的稳定分析,常简地假设破坏面为圆弧形,采二维的极限平衡法分析软体进动面的安全系计算,此常与实际的况一致。

But in many reinforcement projects, some unfavourable geological are encountered frequently, such as colluvial soil, residual soil, slope wash, etc., which result in collapse of borehole and clip of bore rod during drilling of borehole that will bring considerable difficulties to construction and many incipient faults for construction quality.

但是,锚固工程常遇到各类不良地层(例如塌积、残积、坡积和积层等碎石土地层),在锚固施工的钻孔中由于严重的塌孔、卡钻,给施工带来很大困难,同时也给锚固工程质量带来隐患。

The results show that these gravel silty clays distributed at the range between the rock slope with an altitude lower than 190m and the rock platform with an altitude about 140-150m are formed from sliding; and that those gravel silty clays distributed above 190m of the rock surface are residual, colluvial and talus deposits; and that the gravel sand layer located along Zhuxi River is a kind of alluvial deposit.

研究结果表明:分布在基岩面高程190m以下的斜坡与基岩面高程140~150m平台上的粉质黏土夹碎石土层是由滑坡作用形成的;分布在基岩面高程190m以上的粉质黏土夹碎石土层是由积、残积及坡积作用形成的;卵石砂土层是苎溪河的冲积作用形成的。

Ten samples of slope-wash and colluvial deposits from a trench wall at Xiyangfang,Yanqing County,located in the northern margin fault zone of the Yanqing Basin,about 90 km northwest Beijing,have been dated by both green light stimulated emission and infrared stimulated emission.

对北京延庆西羊房古地震探槽西壁采集的 10个积物和坡面沉积物样品进行了细颗粒(4~ 11μm)多测片的红外释光和绿光释光测年。

The IRSL and GLSL age estimates reported for 11 samples of colluvial and slope wash deposits from trench wall at Xiyangfang, Yanqin county, Beijing, could be useful for understanding tectonic activity in the last 20ka, particular in last 2000 years, in turn, for assessing earthquake risk around the Yanqing area.

北京延庆西羊房探坑剖面积物和坡面沉积物11个样品的IRSL和GLSL测年数据将有助于对延庆地区近二万年来,尤其近二千年来构造活动的理解和地震危险性评估。

The upper layer is modern river deposit; the middle layer is relative thick,mainly consisting of icewater deposit,colluvial deposit and deluvium as well as barrier dam accumulation; the bottom layer is formed by ancient river bed deposit and boulder rocks.

河谷覆盖层是由一套不同时期、不同成因类型的沉积物相互迭置的结果,由表及里宏观上可分为3层:表层为现代河流相堆积;中间主要为以冰水、积、坡积、堰塞堆积与冲积混合为主的加积层,厚度相对较大;底部主要为古河床的冲积、冰水漂卵砾石层。

Dapingzi highway tunnel is located in sound potash granite covered by debris.The overburden of the tunnel is relatively thin and the bias is great. In entrance zone,slope surface is covered with thick deluvial,colluvial,alluvial debris,resulting in difficult tunneling condition.

锦屏电站专用公路大坪子隧道岩体为钾长花岗岩,岩体完整性较好,表层为块碎石土,但隧道埋深较浅,偏压严重,进洞口段边坡表面覆盖有较厚的坡冲积块碎石土,成型进洞困难。

This mudstone formation is deposited from the late Tertiary to the early Quaternary. Due to the shorter digenetic period, it has some unfavorable properties such as lower strength, swelling and slaking behaviors, lower resistance of weathering, etc.

泥岩形成於第三纪的末期及第四纪前期,成岩时间较短,强度较低,遇水后易产生回胀、解的现象,抵抗外在环境的能力较差,特别是水的影响。

The decision of cohesive system and the selection of disintegrative system are two key questions of the study of tablet detergent for washing .

粘和体系的确定和解体系的选定是片状洗涤剂研究中两个至关重要的问题,本文围绕该问题进行了一系列研究,得到了比较满意的实验结果。

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