爆炸成腔与爆炸衬砌对土体含水率的影响  

Influence of explosive enlargement and explosive lining on moisture content of soil

作　　者：王海亮[1] 马敏[1] 叶朝良[2] 赵常伟[1] 

机构地区：[1]山东科技大学矿山灾害预防控制省部共建教育部重点实验室,山东青岛266510 [2]石家庄铁道学院,河北石家庄050043

出　　处：《岩土工程学报》2008年第3期425-428,共4页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金资助项目(10672091);河北省自然科学基金资助项目(501279)

摘　　要：介绍了土中爆炸成腔与爆炸衬砌的试验步骤,给出了爆炸形成腔体的实测参数。对爆炸成腔与爆炸衬砌周围土体含水率的实测数据进行了分析。研究结果表明,爆炸成腔后在腔体壁面附近的土体中依次形成了含水率降低区、含水率升高区和含水率恢复区。爆炸衬砌后砌体周围土体含水率的分布状态是爆炸成腔和爆炸衬砌作用叠加的结果。爆后砌体周围土体含水率的分布分为水分渗入区、含水率降低区、含水率升高区和含水率恢复区。The test procedures of explosive enlargement and explosive lining in soil were introduced,and the measured data were presented and analyzed.It was shown that different zones were formed in the surrounding soil of explosive enlarged cavity and they were in turn zones of lowering,rising and restoring moisture content.The moisture content distribution formed by explosive lining was the superimposed effect of explosive enlargement and explosive lining,and different zones in the surrounding soil of explosively formed lining were the infiltration zone,and zones of lowering,rising and restoring moisture content.

关 键 词：爆炸衬砌 爆扩 腔体 土 含水率 

分 类 号：TU411.91[建筑科学—岩土工程]