Experimental Study on the Influence of other Factors on Compression Resistance Performance of Emulsion Explosives in Deep Water

2014 ◽  
Vol 535 ◽  
pp. 729-733
Author(s):  
Lei Liu ◽  
Qiang Liu ◽  
Li Cheng
Keyword(s):  
Experimental Study ◽  
Water Content ◽  
Deep Water ◽  
Experimental Results ◽  
Paraffin Wax ◽  
Emulsion Explosive ◽  
Emulsion Explosives ◽  
Small Influence ◽  
Resistance Performance ◽  
Compression Resistance

Since oil phase materials, oxidizer, and water are important components of emulsion explosive, their influences on compression resistance performance of emulsion explosives in deep water was studied by using reusable experiment device to simulate the deep charging environment. The experimental results show that with the equivalent content of the oil phase material, the sequence of three oil phase types of emulsion explosives from good to bad in terms of compression resistance performance and explosion performance in deep water are composite wax, composite wax and machine oil, paraffin wax, vaseline and machine oil. With the equivalent content of oxidant, the type of oxidant species has quite small influence on compression resistance performance and explosion property. Within a certain range, water content has small influence on compression resistance performance, and explosion performance increases with the increasement of water content, while it significantly decreases with water content increasing to a certain amount.

Influence of Physical Sensitizing Agent on Compression Resistance of Deep Water of Emulsion Explosives

2013 ◽  
Vol 295-298 ◽  
pp. 2869-2873 ◽  
Author(s):  
Lei Liu ◽  
Yi Yang ◽  
Cheng Liang Zhang ◽  
Guo Hua Wang
Keyword(s):  
Deep Water ◽  
Pressure Effect ◽  
Water Pressure ◽  
Glass Microspheres ◽  
Good Resistance ◽  
Emulsion Explosive ◽  
Emulsion Explosives ◽  
Explosive Performance ◽  
Compression Resistance ◽  
Emulsion Matrix

A study of emulsion explosive of deep-water pressure performance can provide theoretical basis for underwater blasting, deep hole blasting and the design of emulsion explosive. The sensitizer is the heavier components of emulsion explosive, using reusable experimental device to simulate the environment of deep water charge, perlite and glass microspheres in two kinds of commonly used physical sensitizing agent content on properties of emulsion explosives with deep water pressure effect. The experimental results show that : with the increasing of the content of physical sensitizing agent, emulsion explosive of deep-water pressure performance also gradually improve, when the pressure is larger, the effect is particularly pronounced; in a certain range, with the increase of the content of physical sensitizing agent, emulsified explosive performance also gradually improve, but reaches a certain value, the explosion properties but declined; in emulsion matrix under the same conditions, the perlite content of 5%, glass microspheres content is 2%, the emulsion explosive has good resistance to water pressure and explosion properties.

Experimental Study on the Effects of Pumice Powder to Cement Soil

2013 ◽  
Vol 834-836 ◽  
pp. 706-712
Author(s):  
Yong Qin Wen ◽  
Xiang Dong Shen ◽  
Lei Niu ◽  
Ya Ping Cui
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Water Content ◽  
Soft Soil ◽  
Cement Composite ◽  
Unconfined Compression ◽  
Optimum Amount ◽  
Composite Cement ◽  
Cement Soil ◽  
Compression Resistance

With pumice as the additive agent used in cement composite soil . In order to test the strength of the composite cement soil, the unconfined compression resistance were tested in the lab with different additive quantity (4%,8%,12%,16%), different curing periods (7d,28d,60d), The results show that the strength of the composite cement soil are significantly increase with increasing curing periods , with increasing additive quantity the strength variation of the composite cement soil first added, and then reduces. there is an optimum amount 8%.The pumice powder may evidently improve the mechanical properties of soft soil which has the characteristic of rich-water content, when water content from 12% to 19%, the strength of the composite cement soil are increased about 20%.

Influence of Compound Sensitizers on Compression Resistance of Deep Water of Emulsion Explosives

2014 ◽  
Vol 535 ◽  
pp. 738-743
Author(s):  
Lei Liu ◽  
Shen Zhang Liu ◽  
Hong Quan Zhao
Keyword(s):  
Sodium Nitrite ◽  
Deep Water ◽  
Hot Spots ◽  
Water Pressure ◽  
Glass Microspheres ◽  
Emulsion Explosive ◽  
Emulsion Explosives ◽  
Explosive Performance ◽  
Environment Study ◽  
Pressure Resistance

compound sensitizing agent is an important component of the emulsion explosive, by using reusable experiment device to simulate the deep charging environment, study compound sensitizing agent on the properties of emulsion explosive deep water pressure resistance. Experimental results show that the mixed sensitizing, the deep water pressure resistance of three kinds of emulsion explosive performance award to him a bad order: glass microspheres + perlite + sodium nitrite sensitization, glass microspheres + perlite and sensitizing sodium nitrite sensitization. Compound containing glass microspheres sensitizer, the measurement of explosive performance closer to sensitization performance when only glass microspheres, perlite, the addition of sodium nitrite on the explosive performance contribution is small. Sodium nitrite and perlite mixed sensitizing, explosive detonation "hot spots", first class formation is chemical sensitization is given priority to, only a minority of perlite as "hot spots", the measurement of explosive performance closer to use sodium nitrite sensitization performance.

Influence of Emulsifier on Compression Resistance of Deep Water of Emulsion Explosives

2013 ◽  
Vol 295-298 ◽  
pp. 2971-2975 ◽  
Author(s):  
Lei Liu ◽  
Qiang Liu ◽  
Wen Xin Li ◽  
Hai Yang Su
Keyword(s):  
Significant Contribution ◽  
Emulsion Explosive ◽  
Emulsion Explosives ◽  
Initial Stage ◽  
Explosive Performance ◽  
Oil In Water ◽  
Experimental Apparatus ◽  
Span 80 ◽  
The Impact ◽  
Compression Resistance

The oil-in-water emulsifier is a key component of the emulsion explosive, experimental apparatus to simulate the environment of deepwater charge reusable research T155; the Span-80 are two commonly used emulsifier content of the emulsion explosive anti-Sham pressure performance the impact. Experimental results show that: T155, Span-80 emulsified explosive sample at the initial stage as the emulsifier content improved explosive performance and anti sham pressure performance has significantly improved, when the content is increased to a certain value against Sham pressure performance improvement is no longer a significant contribution small explosive performance; T155 content of 2% and 3% in Span-80, the emulsion explosives at this time there are a better anti-deepwater pressure performance and explosive performance.

The Influence of Water Regime on the Performance of Aquatic Plants

1994 ◽  
Vol 29 (4) ◽  
pp. 127-132 ◽  
Author(s):  
Naomi Rea ◽  
George G. Ganf
Keyword(s):  
Deep Water ◽  
Aquatic Plants ◽  
Water Regime ◽  
Optimal Performance ◽  
Experimental Results ◽  
The Other ◽  
Full Potential ◽  
Influence Of Water ◽  
Emergent Species

Experimental results demonstrate bow small differences in depth and water regime have a significant affect on the accumulation and allocation of nutrients and biomass. Because the performance of aquatic plants depends on these factors, an understanding of their influence is essential to ensure that systems function at their full potential. The responses differed for two emergent species, indicating that within this morphological category, optimal performance will fall at different locations across a depth or water regime gradient. The performance of one species was unaffected by growth in mixture, whereas the other performed better in deep water and worse in shallow.

scholarly journals Experimental study of the $ \gamma p \rightarrow K^{0}\Sigma^{+}$, $ \gamma n \rightarrow K^{0} \Lambda$, and $ \gamma n \rightarrow K^{0} \Sigma^{0}$ reactions at the Mainz Microtron

2019 ◽  
Vol 55 (11) ◽  
Author(s):  
C. S. Akondi ◽  
K. Bantawa ◽  
D. M. Manley ◽  
S. Abt ◽  
P. Achenbach ◽  
...  
Keyword(s):  
Experimental Study ◽  
Cross Sections ◽  
Differential Cross ◽  
Legendre Polynomials ◽  
Neutral Kaon ◽  
Experimental Results ◽  
Differential Cross Sections ◽  
Theoretical Predictions ◽  
Photoproduction Reactions ◽  
Insight Into

Abstract.This work measured $ \mathrm{d}\sigma/\mathrm{d}\Omega$dσ/dΩ for neutral kaon photoproduction reactions from threshold up to a c.m. energy of 1855MeV, focussing specifically on the $ \gamma p\rightarrow K^0\Sigma^+$γp→K0Σ+, $ \gamma n\rightarrow K^0\Lambda$γn→K0Λ, and $ \gamma n\rightarrow K^0 \Sigma^0$γn→K0Σ0 reactions. Our results for $ \gamma n\rightarrow K^0 \Sigma^0$γn→K0Σ0 are the first-ever measurements for that reaction. These data will provide insight into the properties of $ N^{\ast}$N* resonances and, in particular, will lead to an improved knowledge about those states that couple only weakly to the $ \pi N$πN channel. Integrated cross sections were extracted by fitting the differential cross sections for each reaction as a series of Legendre polynomials and our results are compared with prior experimental results and theoretical predictions.

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