寒冷地区土壤冻結深度大,基础埋置深。过去采用条形基础、独立基础、筏式基础等等,要用人工挖填大量的土方,劳动強度大,工期长,用料多,造价高,不符合多快好省的要求。这是寒冷地区在建筑技术上共同存在着的一个主要矛盾。为了解决这个矛盾,这些地区的施工、設計和科学研究单位实行三結合,集中力量,圍攻重点;技术人員在毛泽东思想指引下,敢于突破舊框框,深入实践,与工人相结合,在仅仅两年时間內,找到了地基基础技术革命的方向,闖出了自己的道路。去年十月,东北三省土木建筑学会召开了爆扩矩桩基础和浅基础学术会議,全国有許多省、市的施工、設計、科学研究单位和大专院(校)等都派了代表参加。会士交流了經驗,在提高思想統一认識的基础上产生了爆扩短桩設計要点和施工操作規程(草案)两个文件,制定了爆扩短桩基础协調研究計划,为我們进一步发展运用这項新技术創造了良好的开端。我們在这一期上刊登了有关爆扩短桩基础的几篇文章,並刊登了东北三省学术会議的討論成果,以供讀者参考。我們希望各个地区在推广这种新型基础時,开展試驗研究工作,以摸清規律,解决目前存在的技术理論問題,确定合理的計算方法,使这項新技术日趋完善。 Frozen soil in the freezing depth, the foundation buried deep. In the past, the use of strip foundation, independent foundation, raft foundation and so on, to dig a large number of artificial earthwork, labor-intensive, long construction period, materials and more, high cost, does not meet the requirements of more and better. This is a major contradiction that co-exists in building technology in cold regions. In order to solve this contradiction, the construction, design and scientific research units in these areas have implemented the principle of "Three Combining, Concentrating and Siegeing Key Points. Under the guidance of Mao Zedong Thought, technicians dare to break through old frameworks, practice in depth and combine with workers in only two years Time, found the direction of foundation technology revolution, break through their own way. In October last year, the Civil Society of Northeast China held a conference on the basis of explosion-expanding pile foundation and a shallow foundation. Many construction and design institutes, scientific research units and tertiary institutions in the provinces and municipalities throughout the country sent representatives. The exchange exchange of experience, in raising the unity of thinking on the basis of the explosion has expanded short pile design elements and construction operation procedures (draft) two documents, developed a short expansion pile foundation for the coordination of research programs for our further development The use of this new technology has created a good start. During this period, we published several articles on the basis of the explosion of short piles and published the results of the discussions in the academic conferences in the three northeastern provinces for your reference. We hope all the regions in the promotion of this new type of foundation to carry out experimental research work to find out the law, solve the existing theoretical issues of technology, to determine a reasonable method of calculation, so that the new technology is maturing.