| 劈裂注浆扩散半径及压力衰减分析 |
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| 引用本文： | 邹金锋,李 亮,杨小礼. 劈裂注浆扩散半径及压力衰减分析[J]. 水利学报, 2006, 37(3): 0314-0319 |
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| 作者姓名： | 邹金锋 李 亮 杨小礼 |
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| 作者单位： | 中南大学,土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 本文假设浆液在裂缝中的流动符合达西定律，劈裂注浆在土体中形成的裂缝宽度为均匀裂缝宽度，推导出劈裂注浆的注浆压力沿裂缝长度的衰减规律以及裂缝在土体中的扩散规律，并用数值分析的结果证明了这些规律的可靠性。随后分析了多孔注浆时的相互影响，得出最优注浆孔数量及其布置方式，同时推导出多孔同时注浆时各个主流线上注浆压力的大小以及此时的浆液扩散半径。
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| 关 键 词： | 劈裂注浆 扩散半径 衰减规律 注浆压力 最优 |
| 文章编号： | 0559-9350（2006）03-0314-06 |
| 收稿时间： | 2005-01-13 |
| 修稿时间： | 2005-01-13 |
Penetration radius and pressure attenuation law in fracturing grouting |
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| ZOU Jin-feng,LI Liang,YANG Xiao-li. Penetration radius and pressure attenuation law in fracturing grouting[J]. Journal of Hydraulic Engineering, 2006, 37(3): 0314-0319 |
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| Authors: | ZOU Jin-feng LI Liang YANG Xiao-li |
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| Affiliation: | Central South University, Changsha 410075, China |
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| Abstract: | On the assumption that the grouting flow in soil fracture accords with Darcy's law and the fracture widths in soil formed by fracturing grouting is evenly distributed, the attenuation law of pressure and the fracture pervasion along the penetrating radius direction are deduced. The validity of this assumption is verified by numerical analysis. The interaction among multiple grouting bores is investigated and the optimal amount and the reasonable arrangement of grouting bores are studied. The magnitude of grouting pressure along the main grouting flow paths and corresponding penetration radii during simultaneous grouting of multiple bores are further deduced. |
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| Keywords: | penetrate grouting penetration radius grouting pressure attenuation law optimization |
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