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（1 西安建筑科技大學(xué)土木工程學(xué)院， 西安 710055； 2 西安公路研究院， 西安710065；3 陜西省文化遺產(chǎn)研究院， 西安 710075）

［摘要］榆林城墻面臨消亡的危險，對其加固已迫在眉睫，故提出采用改性土進(jìn)行加固保護(hù)施工方案。為研究加固后城墻的耐久性，在榆林素土中加入少量的摻合料（料姜石、水泥、熟石灰）來改善土體的耐鹽性，并對榆林素土和料姜石的化學(xué)成分和易溶鹽進(jìn)行分析。試驗(yàn)和實(shí)踐表明，利用配比為5%水泥、5%熟石灰、10%料姜石、80%黃土的改性土體來夯筑加固城墻，加固后的城墻具有良好的耐久性，這種加固方案能夠保持城墻的原貌。

［關(guān)鍵詞］改性土; 城墻; 料姜石; 加固; 摻合料; 耐鹽性

中圖分類號：TU472.3       文獻(xiàn)標(biāo)識碼：A       文章編號：1002-848X(2014)11-0056-05

Salt resistance experimental research on improved soil reinforcement of Yulin City Wall

Chen Ping1, Wang Longlong1，2, Yang Yurui3

 (1 Department of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China; 2 Xi'an Highway Institute, Xi'an 710065, China; 3 Shaanxi Academy of Cultural Heritage, Xi'an 710075, China)

Abstract: Yulin City Wall faces the danger of disappearing and the reinforcement is immediately needed. The reinforcement protection and construction method of improved soil reinforcement was put forward. In order to research the durability of the reinforced city wall, little amount of mixed stuff, including Liaojiang stone, cement, and hydrated lime, were added into the Yulin soil to improve its salt tolerance property. Chemistry analysis and salt dissolve analysis were proceed on the Yulin soil and Liaojiang stone. The experiment and practice demonstrate that rammed wall with 5% cement, 5% hydrated lime, 10% Liaojiang stone and 80%soil has a well durability, which can maintain the original site of original features.

Keywords: improved soil; city wall; Liaojiang stone; reinforcement; mixed stuff; anti-salt dissolve property

作者簡介：陳平，教授，碩士生導(dǎo)師，Email：cping86@hotmail.com。

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