| 钟晶晶,程桦,蓿广勇,怀亚.饱和含盐冻结钙质粘土单轴压缩试验研究[J].安徽建筑大学学报,2013,21(6):46-50 |
| 饱和含盐冻结钙质粘土单轴压缩试验研究 |
| Uniaxial compressive strength of saturated freezing saline calcareous clay |
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| DOI：10.11921/j.issn.2095-8382.20130611 |
| 中文关键词: 深埋人工冻土 钙质粘土 力学特性 试验研究 |
| 英文关键词: embedded artificial frozen soil calcareous clay mechanical properties experimental study |
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| 中文摘要: |
| 以淮南杨村矿副井井筒冻结施工为工程背景，以副井井筒穿越的含盐度钙质粘土为代表，进行常温（＋27℃）和（-20℃）不同含盐度钙质粘土条件下的单轴抗压强度试验。通过对饱和含盐冻结钙质粘土单轴抗压强度试验，得到了试验条件下土体在相同温度下单轴抗压强度与结冰温度随含盐量变化的强度特性。为低温条件下含盐钙质粘土力学特性和煤矿冻结壁设计施工提供设计基础。 |
| 英文摘要: |
| This article taking the frozen auxiliary shaft project of Yang Cun coal mine in Huainan as the project background, Represented by different salinity of calcareous clay from the well case of the aux- iliary shaft, are tested under the uniaxial compression and at room temperature （＋27℃） and freezing temperature （-20 ℃）. Based on the uniaxial compressive strength test of saturated freezing calcare- ous clay with salinity, strength characteristics is obtained under uniaxial compressive strength under the condition of the soil at the same temperature and freezing temperature change with saltness. This provide some design basic for studing calcareous clay with salinity mechanics under cold environment and the construction and design for freezing shafts of coal mines. |
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