输电线路采空区铁塔叠加基础构想

为进一步保障地区电网安全稳定运行、电力可靠有序的供应,提高地区主网辖区内输电线路采空区铁塔倾倒的预防能力,针对输电线路采空区出现的倾斜铁塔基础进行调整和改造,设计出了适用于铁塔的叠加基础,通过调整基础根开和基础面达到治理铁塔倾斜的目的,经过采空区运行线路实践取得了很好的效果。

Successful application of optimized aperture based CRS stack in the Shengli exploration area

The common reflection surface （CRS） stack is based on the local dip of the reflector and the reflection response within the first Fresnel zone. During the CRS stack all the information given by a multi-coverage reflection dataset can be successfully utilized. By now, it is known as the best zero-offset （ZO） imaging method. In this paper high quality CRS kinematic parameter sections are obtained by a modified CRS optimization strategy. Then stack apertures are calculated using the parameter sections which finally results in the realization of the CRS stack based on optimized aperture. Thus the advantages of CRS parameters are fully developed. Application to model and real seismic data reveals that, compared with the image section by a conventional CRS stack, the image section by CRS stack based on an optimized aperture improves both the signal-to-noise ratio and the continuity of reflection events.

沈阳红梅味精厂老发酵厂房加固改造设计

针对红梅味精厂老发酵厂房生产过程中对原结构造成不同程度损害、以及历史资料不详等问题,结合改造后的使用功能及保留原有风貌的要求,对原结构的不同部位、不同构件提出不同的加固改建方案。西部三连拱区域屋盖与外墙完全保留,基础采用在原有基础上叠加独立和筏板基础的方法进行加固,通过内贴外框架新建混凝土柱、内柱外包格构钢柱、梁外包钢桁架建立新的结构受力体系;中部三层区仅保留外墙,其余部分置换新建;东部两层区完全拆除新建。通过加固改造,在满足新时期的使用需求的条件下,有效保护了老发酵厂房的历史风貌。