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抗胀与解胀法相结合的双层井壁施工 被引量:1
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作者 金江涛 廖万生 《煤矿安全》 CAS 北大核心 2001年第9期50-52,共3页
小江边泥灰岩抗压强度低 ,亲水性强 ,遇水极易膨胀而崩落。采用吊挂井壁作临时支护 ,而吊挂井壁局部浇灌混凝土 ,局部留空不浇混凝土 ,即起到抗胀与解胀作用 ,减少了井壁开裂 ,确保了井筒质量 ,同时 。
关键词 抗胀法 双层井施工 吊挂井壁 机理 施工工艺 泥灰岩
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Advances in Supercritical Fluid Crystallization 被引量:1
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作者 任聪 《Agricultural Science & Technology》 CAS 2016年第6期1422-1428,1454,共8页
The supercritical fluid crystallization technique is a novel technology for preparing ultrafine particles. This paper introduced the concept and features of the technique with an emphasis on three kinds of supercritic... The supercritical fluid crystallization technique is a novel technology for preparing ultrafine particles. This paper introduced the concept and features of the technique with an emphasis on three kinds of supercritical fluid crystallization techniques, i.e. rapid expansion of supercritical solutions, supercritical fluid anti-solvent and particles from gas saturated solutions Some questions and the prospect of this technique were also discussed. 展开更多
关键词 Supercritical fluid: Rapid expansion of supercritical solutions Supercritical fluid anti-solvent Particles from gas saturated solutions
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