ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Explosive lining is a new method to construct underground space in soil. By making themost of compressibility of soil and thixotropy of concrete under explosive loading, this method offersan efficient path to form a cavity and its concrete support layer synchronously. In order to investigatethe forming effect, a series of contrastive laboratory tests, including explosive lining method andconventional explosive compaction method, were performed under same soil and explosiveconditions. Results show that measured dynamic stress and displacement by explosive lining methodare higher than that of by conventional explosive compaction method under same equivalent radius,and the range of compact region in soil is larger too. Similarly, the physical and mechanicalperformance indexes of soil, such as water content and cohesion are superior to that of byconventional explosive compaction. It is approved that an even thickness concrete support layer canbe formed in one-shot forming process by explosive lining, and there is no evident cranny region inthe soil around the cavity
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.1121.pdf
Permalink