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网纹红土路基处治施工 被引量:3
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作者 龚南生 黄俊 杨海泉 《路基工程》 2004年第2期12-14,17,共4页
针对网纹红土作路基填料施工碾压时的不良压实特性,以及碾压成型后出现的收缩 网裂问题,通过试验路段的施工实践,总结出网纹红土路基施工的处治方案、施工工艺流程与质 量控制方法。
关键词 公路工程 路基处理 纹红土 外掺剂 压实度 路基填料 收缩网裂 质量控制
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Reservoir space types and the factors influencing the characteristics of spherulite in rhyolite 被引量:3
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作者 TIAN JingXiong SUN XiaoMeng +1 位作者 ZHANG XuQing SHOU YongCheng 《Science China Earth Sciences》 SCIE EI CAS 2013年第5期748-755,共8页
Oil-gas reservoir space types involving spherulite in pyromeride rocks are common in the Lower Cretaceous Shangkuli Formation, the Hailar Basin, China. The main types include interspherulite fissures, interlayer fissu... Oil-gas reservoir space types involving spherulite in pyromeride rocks are common in the Lower Cretaceous Shangkuli Formation, the Hailar Basin, China. The main types include interspherulite fissures, interlayer fissures, intraspherulite concentric rings and net microcracks, cavity pores, dissolution pores, and devitrification pores. The first two were found to restrict the effective plane porosity of interspherulite. Devitrification microporosities, microcracks, cavity pores, and spherulite diameter influence the effective plane porosity of intraspherulite. The degree of dissolution is determined by the degree of development and the type of intraspherulite microcracks. Another important role of ring and net microcracks is to connect devitrification pores to form a pore and fissure network. Finally, chilling contraction plays an important role in the form and development of interspherulite fissures, microcracks, and cavity pores. The diameter of spherulite restricts chilling contraction, especially when the diameter is between the common spherulites and lithophysae, thus benefiting microcrack and cavity pore formation. To summarize, devitrification microporosities represent excellent oil reservoir space, while offering micro-channels for the movement of formation water and organic fluids. However, the inclusion of microcracks improves this capacity. 展开更多
关键词 Hailar Basin Shangkuli Formation SPHERULITE reservoir space chilling contraction DISSOLUTION DEVITRIFICATION
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