%0 Journal Article
%T MODEL TESTING STUDY ON PREFABRICATED SPIRAL V-NOTCH BLASTING<br>螺旋切槽孔松动爆破模型试验研究
%A Zheng Zhoulian
%A Chen Shanlin
%A Yie Xiaoming
%A Ming Chengyun
%A <br>郑周练
%A 陈山林
%A 叶晓明
%A 明成云
%J 岩石力学与工程学报
%D 2004
%I 
%X Prefabrication spiral V-notch blasting can control diameter of blasting block and reduce the second blasting by adjusting spiral angle. Model testing study is made on prefabricated spiral V-notch blasting,and hydromatic method is used to simulate the quasi-static process in blasting of explosive. It is found from the model test that the crack initiates and develops along the tip of spiral V-notch and that the bigger the spiral angle is the easier the crack initiates and the spiral V-notch hole model is easier to crack than the circle hole one.
%K blast engineering
%K spiral V-notch
%K loosening blasting
%K model testing study
%K initiation and develop- ment of crack<br>爆破工程
%K 螺旋切槽
%K 松动爆破
%K 模型试验
%K 裂缝
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=B4677C01770D9249&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=38B194292C032A66&sid=BD7D27247C63490C&eid=78BF76CF5B7CB0F2&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=1&reference_num=7