摘要
将碱渣按一定比例与滨海软土拌和,用以稳定软土。通过击实试验制备碱渣土,对不同配比碱渣土进行无侧限抗压强度和水稳定性试验,研究组分掺量、龄期对碱渣土强度和水稳定性的影响,分析碱渣土的无侧限抗压强度特性和机理。研究结果表明:碱渣土的无侧限抗压强度随着水泥掺量的增加而提高,随着碱渣掺量的提高先增加后降低,存在一个峰值;龄期对碱渣土无侧限抗压强度有一定影响,在7~14d龄期时影响较为明显,在14~28d龄期发展平缓;碱渣土的水稳定性发展规律与无侧限抗压强度基本一致。结合试验分析得出,利用碱渣稳定滨海软土时,碱渣掺量为30%左右较为理想。
The suda residue is mixed with the marine soft soil in a certain proportion to stabilize the soft soil.The suda residue soil is prepared by the compaction test.The unconfined compressive strength test and water stability test are carried out for different ratios of suda residue soil to study the influence of matching and age on strength and water stability,and the unconfined compressive strength characteristics and mechanism of suda residue soil are analyzed.The results show that:the unconfined compressive strength of suda residue soil increases with the increase of cement content,and increases first and then decreases with the increase of suda residue content.There is a peak value in this process.The age has a certain impact on the unconfined compressive strength of suda residue soil.The development of unconfined compressive strength is obvious between 7 dand 14 dage,and gentle between 14 dand 28 dage.The development rule of water stability is basically consistent with the unconfined compressive strength.According to the experimental analysis,it is concluded that the suda residue content is about 30%when the suda residue is used to stabilize the coastal soft soil.
作者
张鹏
赵晓晴
蒋德稳
徐淑娟
宗钟凌
ZHANG Peng;ZHAO Xiao-qing;JIANG De-wen;XU Shu-juan;ZONG Zhong-ling(School of Civil and Ocean Engineering,Jiangsu Ocean University,Lianyungang 222005,China;School of Architecture and Engineering,Lianyungang Technical College,Lianyungang 222000,China)
出处
《公路》
北大核心
2020年第2期212-218,共7页
Highway
基金
国家自然科学基金项目,项目编号51809101
江苏省国家电网科技项目,项目编号FW201804007
江苏省“六大人才高峰”,项目编号2016-JZ-006.
关键词
碱渣
软土
碱渣土
无侧限抗压强度
水稳定性
suda residue
soft soil
suda residue soil
unconfined compressive strength
water stability
