With the aim of measuring the thickness of loose rock zone around roadway by use of digital panoramic borehole camera technique,a crack detection system of loose rock zone around roadway was developed with program language Visual Basic 6.0 and digital image processing technique,and a digital panoramic borehole camera system for the thickness measurement of loose rock zone around roadway was established.This system has been applied successfully in industrial field.

煤矿巷道围岩松动圈的存在是一个普遍现象,随着煤矿开采深度的增加,巷道开挖后出现围岩松动圈不可避免.以研究全景数字钻孔摄像系统测量围岩松动圈厚度值为目的,结合visualBasic6.0编程语言,采用数字图像处理技术及其方法,研制了围岩松动圈裂缝检测系统,建立了围岩松动圈厚度值的全景钻孔数字摄像测量系统,成功地将钻孔数字摄像测量系统应用于现场工业性试验中.

It is proposed a new point of view of using counterfort retaining wall for a coal bunker,based on the conditions of coal bunkers for medium and small coal mines.Through calculations and checks of unti-overturning,untislip,sectional strength and base stress etc of the retaining walls,the use of counterfort retaining wall in a coal bunker has been realized.Social and economic benefits have been obtained.

Taking Xuzhou as an example,this article analyzed the urgent need to find solutions issues of the land open-trade,which concluded the main body of land demand,macro regulation of the government,remise fashion,exchanges,trading systems and information updating,and then it put forward a series of specific and practical measures which contained adhering to the going out and inviting in,the practice of real estate planning,increasing the cleansold,putting the web-competitiveinto practice,innovating the system and establishing the land market information system.After the research,it was known that the construction of the land market in our country was immature,but establishing a standardization land market was a long-term,complicated process,and it needed long time to practice and explore.

自2001年7月1日起,徐州市土地市场服务中心严格执行国有土地有偿使用制度,依法规范建设用地供地方式.2001年10月2日<徐州市城镇国有土地使用权招标拍卖挂牌交易办法>正式公布施行.五年来,徐州市土地公开交易取得了长足发展,但也存在不少问题.