| 洪磊,江平,郑天涯,邓楷.砂岩区丘陵隆岗洼地深厚填土地下水疏排分析与治理措施[J].矿产勘查,2024,15(S2):296-301 |
| 砂岩区丘陵隆岗洼地深厚填土地下水疏排分析与治理措施 |
| Analysis and prevention measures of groundwater drainage in deep filled soil of sandstone hills and valleys |
| 投稿时间：2024-06-25 |
| DOI：10.20008/j.kckc.2024s2040 |
| 中文关键词: 隆岗洼地 深厚填土 地下水疏排 埋管降水 地面沉降 |
| 英文关键词: hills and valleys deep filled soil groundwater drainage buried pipe precipitation surface subsidence |
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| 中文摘要: |
| 城市扩展过程中大量沟谷区域被侵占填埋，导致地表水的地表汇流路径丧失，地表水入渗填土内形成规模化的地下径流。填土内部的规模化同向渗流，会对大规模的填土土体结构和稳定性产生影响。限于不同城市地质条件和地形条件的差异性，此种潜在危害此前较少受到关注，已发生的填土沉陷和不均匀沉降多归因于压实度不达标和均匀性不好。本文结合具体工程项目提出了在填土回填时期埋设降水管或敷设排水层的工程措施，可有效降低地下水的积累，快速疏导地下水，减轻地下水渗流对土体填土土体结构和稳定性的影响。 |
| 英文摘要: |
| During the process of urban expansion，a large number of valley areas are occupied and buried， resulting in the loss of surface water runoff paths and the infiltration of surface water into the fill soil，forming large-scale underground runoff. The same directional seepage inside the backfill soil will have an impact on the structureand stability of large-scale backfill soil. Due to the differences in geological and topographical conditions in differ. ent cities，this potential hazard has received less attention before. The occurrence of soil subsidence and unevensubsidence is mostly attributed to inadequate compaction and poor uniformity. This article proposes engineeringmeasures for burying precipitation pipes or laying drainage layers during the backfilling period of soil filling，which can effectively reduce the accumulation of groundwater，quickly divert groundwater，and alleviate the impact of groundwater seepage on the structure and stability of soil filling. |
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