Abstract : by means of the basic climatic principle and the local astronomical parameters the optimal dip angle , maximum wind pressure borne by the roof material , the depth of the cold - proof ditch and the suitable distance between the greenhouses in chengdu area are calculated 文摘:应用气侯学基本原理,当地天文参数与气候资料,计算了成都地区节能日光温室采光面最佳倾斜角,顶面覆盖材料承受最大风压,防寒沟深度及温室间适宜距离。
( 3 ) ensemble character of structural planes as follows : in left dam abutment , meta basalt schistosity is main , and the structure is clockwise . low dip angle jointing did n ' t develop in rock mass ; in right dam abutment , rupture and jointing structural plane is main , and the structure is reversed . the structure was of obvious macroscopical slaty character ( 3 )通过对上述结构面的分析，得出其总体特征为：左坝肩以变玄武岩片理为主体，呈顺向结构，岩体内缓倾角节理极不发育；右坝肩主要为断裂及节理型结构面，呈反向结构，且具有明显的宏观板状结构特征，并发育有一定厚度的构造软岩带。
( 5 ) rock mass stability analysis on dam abutment of xia luo - yu damsite as follows : in left dam abutment , sideslip control structure has been relatively integrate , and low dip angle jointing did n ' t develop , so integrate sliding deformation control structure could n ' t been formed in three - dimensional space and rock mass stability could n ' t been influenced badly ; in right dam abutment , indicate rock mass distortion was caused by the rock mass mechanics condition , such as specific rock mass structure , compression stress concentrate with high strength and especial landform and so on ( 5 )对下落鱼坝址坝肩岩体稳定问题的分析得出：左坝肩岩体虽然具有相对较完整的侧滑控制结构，但由于缓倾角节理不发育，故在三维空间上不能形成完整的滑移变形控制结构，亦不会对坝肩岩体稳定性产生严重影响：右坝肩岩体复杂变形，是在特定的岩体结构、高强度的压应力集中及特殊的地形等不可或缺的岩体力学条件下产生的。
In view of characteristics of seismic data of gobi - sand dune areas , this paper , through various data - processing means such as quality control , high - pass filltering , dip angle filltering , field static correction , surface consistency deconvolution , precise velocity analysis , denoising before stack , multiple iterative operation of residual static correction , denoising after stack and modification after shift , has raised the data quality of seismic profiles in low signal - to - noise ratio areas and managed to form the seismic data - processing technique for such complex areas as gobi , foreland and dune 摘要针对戈壁、沙丘地区地震资料的特点，通过对原始资料进行质量控制、高通滤波、倾角滤波、野外静校正、地表一致性反褶积、精细速度分析、叠前去噪、剩馀静校正多次迭代、叠后去噪和偏后修饰等处理，提高了低信噪比地区地震剖面的资料质量，摸索出了一套戈壁、山前、沙丘等复杂地区地震资料处理技术。
It can be used not only to infer position of the magnetic body relative to the drill hole but also to make quantitative - semi - quantitative calculation and inverse interpretation and calculation of the distance and depth from head or tail of ore bodies to the known drill hole at surface by rotating an angle so as to design drilling depth , dip angle and orientation of the next drill hole 其作用不仅可以判断磁性体相对于钻孔的位置，而且可以进行定量和半定量计算，以及经旋转一角度采用地面方法作反演解释，计算矿体头部或尾部距已知钻孔的距离、深度，设计下一钻孔的深度、顶角、方位角。
A complete suit of closely analytical expressions of stress field is presented for the strike - slip shear fault with an arbitrary dip angle in a semi - infinite medium . checking and reviewing the analytical expressions of stress field by other researchers , closely mathematical reasoning for the expressions is done again , thus this suit of expressions has become more perfect and reliable 给出了半无限空间中任意倾角的走向滑动剪切断层错动产生的应力场的一套严密的解析表达式.对前人所做的该方面的工作进行了检验和回顾,重新对公式进行了严密的数学推导,给出了正确的结果,使得这一套公式更加完善和可靠
3 after analysed the deformation of the structures and fractures , predicted 2 - d fractural degree through the study of natural fracture net , indentified and evaluated fracture though logging data , analysed 3 - d seismic coherence data > counted the dip angle " s of strata etc , the distribution of fracture is pointed out , the prediction methods which combined with geological and geophysical technologies of the fractural zones in the tight sandstone is also presented 3通过构造及断裂形变分析、天然裂缝网络二维裂缝度预测、测井裂缝识别与评价、地震三维相干分析、地层倾角计算等预测裂缝分布区，提出地质裂缝预测技术和地球物理裂缝预测技术相结合的致密砂岩储层裂缝发育带预测方法。
