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Stratum near the bridge foundation is rhyolite porphyry in late Jurassic period. A little of slope eluvium exists on the top of the mountain, which is 200 m long and 80 m wide, and its all sides face to sea. The integrality of rock mass of the mountain is relatively poor because of the effect of some faults and other structural fissures.

桥基所在地层为晚侏罗系流纹斑岩,山体顶部有少量坡残积层,地形上该山体平均长200m、宽80m,四面临空,且受数条小断层及共他构造裂隙的影响,山体岩体完整性较差。

Combined with advanced geological forecast work of Changwuling tunnel the reflection characteristics of radar wave pass through integrated stratum with rock of single characteristics,rich water region,rock vein and fracture zone,interface between slope eluvium and bedrock are analyzed.

结合长坞岭隧道超前地质预报工程实例,分析了雷达波穿越单一岩性完整岩层、富水区围岩、岩脉及裂隙破碎带、坡残积层与基岩界面时的反射特征,指出地质雷达在长坞岭隧道超前地质预报优化设计施工方案中发挥了重要作用,可为保障施工安全提供有效指导。

According to material composition, landslides in this area can be divided into two categories: rockslide and sedentary-slope wash landslide.

依据该地区滑坡物质组成特征将滑坡分为岩质滑坡和坡—残积物滑坡两类。

There are three features in the minibasins induced by gravitational sliding on the slope: the firstly, feature is surface of unconformity developed by onlap on minibasin margins or surface of unconformity truncated by mass transport-complex are sequence boundary in the study area; the secondly , accommodation of gravity flow is controlled by up lift rate and sedimentation rate , and styles of filling in the minibasins are dominated by the interrelationship between the two factors; and the third , there are two stacking patterns that consists of upward of turbidite fan-hemipelagic drape mud or mass-transport complexes-turbidite fan-hemipelagic drape mud.

认为在深水陆坡重力滑动作用所形成的微盆地内,层序边界表现为微盆地边缘上超不整合面或重力流对下伏地层的侵蚀不整合;逆冲构造隆升速率与沉积速率共同控制了重力流可容空间和沉积充填样式;沉积垂向演化以块状搬运复合体一浊积扇-深海披覆泥或浊积扇-深海披覆泥为特征。

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

河谷坡脚处的崩积体通常只影响到谷底较窄的地带。

For colluvial slopes, the usage of bedrock model or the assumption of a fictitious weak layer at the interface between colluviums and bedrock is a reasonable way for stability analysis to reflect common noncircular slides in colluvial slopes.

对於崩积层边坡的分析可采岩盘模式分析,或在崩积层与岩盘的界面引入一虚拟软弱层的方式,以得到合的分析结果。

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个崩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崩积物和坡面沉积物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。

After studying the sequence stratigraphy and the provenance system, they definite the sedimentary type, sequence position, depositional area and formation mechanism of the gravity flows and set up the depositional models of the delta slump turbidite fan, slop-moving turbidity fan, nearshore subaqueous fans, sublacustrine fan and slope fan.

通过层序地层研究及物源供给系统分析,明确了重力流的沉积类型、层序位置、发育部位和形成机制,建立了三角洲滑塌浊积扇、坡移浊积扇、近岸水下扇、湖底扇和斜坡扇共五种类型的重力流发育模式。

In ecological fragile zone in arid and semi-arid area of Inner Mongolia, the ecological forest net works were constructed by afforestation in drought sun slope of Daqingshan mountain ,along highway and of shelter belt in farm land.

在内蒙古干旱、半干旱区生态脆弱带,通过对内蒙古大青山干旱阳坡、绿色通道和山前冲积、洪积平原农田防护林等三个类型森林生态网络体系的构建,遵循适地适树的原则,选择适宜树种、营养杯或带土托大苗,采用了保水抗旱造林技术措施,使得干旱阳坡造林成活率达到了 85~ 95%;绿色通道林造林成活率为 80 -1 0 0 %;农田防护林造林成活率为 90~99.8%。

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