| 摘要: |
| 榆林城墙为第6批（2006年）全国重点文物保护单位之一.对城墙土样的化学成分进行分析后发现，其中含有一种产于华北、西北黄土地带及石灰岩古风化层中的建筑材料——料姜石；为改善城墙土体的无侧限抗压强度、耐水性、耐盐侵蚀性、抗冻及抗风蚀等性能，在城墙土样里加入了少量掺和料（料姜石、水泥、熟石灰）.结果表明，按照5%（质量分数，下同）水泥、5%石灰、10%料姜石、80%土进行配比的夯土城墙体具有良好的耐久性. |
| 关键词: 榆林卫城 改性土 城墙 料姜石 加固 掺和料 |
| DOI：103969/j.issn1007 9629201403011 |
| 分类号: |
| 基金项目: |
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| Experiment Research of Reinforcement by Rammed Soil ofYulin Acropolis South City Wall |
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CHEN Ping1, YANG Yurui2, HAO Hongwei1, SONG Zewei1
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1.School of Civil Engineering, Xian University of Architecture and Technology, Xian 710055, China;2.Shanxi Provincial Institute of Cultural Heritage, Xian 710075, China
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| Abstract: |
| The Yulin city wall is one of the sixth group of key cultural relics under national protection. In order to improve the soil strength, durability and other performance, the chemical composition of city wall soil was analyzed firstly, finding out that the soil in the city wall contains a special local construction material called liaojiang stone which is native to both the loess area in northern and northwest China and in limestone regolith. Then, chemical analysis and salt dissolution analysis were carried out, some amount of mixed stuff（liaojiang stone, cement, hydrated lime） was added into the soil to improve the soils strength, water resistance, salt dissolution resistance, freezing resistance and wind erosion resistance and so on. The research results demonstrate that the rammed wall constructed with the modified soil containing 5%（by mass, the same is below) cement, 5% hydrated lime, 10% liaojiang stone and 80% soil has good durability. |
| Key words: Yulin acropolis modified soil city wall liaojiang stone reinforced mixed stuff |
