[1]冀 超.纤维加筋混凝土在深厚软弱地基渠道中应用[J].江苏水利,2018,(08):66-68+72.
 JI Chao.Application of fiber reinforced concrete in deep soft foundation channel[J].JIANGSU WATER RESOURCES,2018,(08):66-68+72.
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纤维加筋混凝土在深厚软弱地基渠道中应用()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年08期
页码:
66-68+72
栏目:
工程建设
出版日期:
2018-08-15

文章信息/Info

Title:
Application of fiber reinforced concrete in deep soft foundation channel
文章编号:
1007-7839(2018)08-0066-03
作者:
冀 超
山西省水利水电工程建设监理有限公司,山西 晋中 030002
Author(s):
JI Chao
Shanxi Water Resources and Hydropower Construction Supervision Co.,Ltd,Jinzhong 030002,Shanxi
关键词:
混凝土渠道劈裂抗拉强度抗折强度衬砌板裂缝
Keywords:
concrete channelsplitting tensile strengthflexural strengthlining plate crack
分类号:
TV431
文献标志码:
B
摘要:
针对混凝土渠道衬砌结构的受水力冲刷引起衬砌结构破坏,导致混凝土渠道失去输水功能,尤其是对于深厚软弱地基中渠道,造成渠道整体坍塌破坏及周围坝体失稳,提出采用玄武岩纤维加筋混凝土对深厚软弱地基渠道进行衬砌,对纤维加筋混凝土的力学性质开展试验研究。研究结果表明:玄武岩纤维掺加能提高混凝土抗压强度、劈裂抗拉强度以及抗折强度,最大增幅分别可达4.00 MPa、1.80 MPa、1.50 MPa,有效提高纤维混凝土的韧性及抗裂性。利用现场监测的玄武岩纤维加筋混凝土衬砌板裂缝数据资料,得到纤维加筋混凝土能够提高混凝土抗
Abstract:
In view of the failure of lining structure caused by the hydrlaiuc erosion of the concrete channel, leading to the loss of water transfer function of the concretec hannels, especially for deep soft foundation channels, resulting in the collapse of the entire channel and nistability of surrounding dam body.The basalt fiber reinforced concrete was proposed to lining deep soft foudnation channels, and the mechanical properties of fiber reinforced concrete were experimentally studied.The results showed that the addition of basalt fiber could improve the compressive strength, splitting tensile stregnth and flexural strength of concrete, and the maximum increase could respectively reach 4.00MPa, 1.80MPa and 1.50MPa, which could effectively improve the toughness and crack resistance of the fiber concrete.Accodring to the field monitoring data of lining plate crack in the basalt fiber reinforced concrete, it was found that fiber reinforced concrete could improve the crack resistance of concrete, and had good protection capaiblities for deep soft foundation channels.

参考文献/References:

[1] 石娇,王正中,张丰丽,等.高地下水位弧底梯形混凝土衬砌渠道冻胀断裂破坏力学模型及应用[J].西北农林科技大学学报(自然科学版),2015,43(01):213-219.
[2] 刘东,胡宇祥,付强,等.北方灌区混凝土衬砌渠道断面优化及参数分析[J].农业工程学报,2015,31(20):107-114.
[3] 李爽,王正中,高兰兰,等.考虑混凝土衬砌板与冻土接触非线性的渠道冻胀数值模拟[J].水利学报,2014,45(04):497-503.
[4] 刘旭东,王正中,闫长城,等.基于数值模拟的双层薄膜防渗衬砌渠道抗冻胀机理探讨[J].农业工程学报,2011,27(01):29-35.
[5] 于健,周春生,史海滨,等.膨润土防渗毯用于渠道衬砌及其老化因素对力学性能的影响[J].农业工程学报,2011,27(11):170-175.
[6] 程满金,申利刚,步丰湖,等.聚苯乙烯保温板在衬砌渠道防冻胀中的应用研究[J].灌溉排水学报,2011,30(05):22-27.
[7] 严武建,牛富俊,吴志坚,等.冻融循环作用下聚丙烯纤维混凝土的力学性能[J].交通运输工程学报,2016,16(04):37-44.
[8] 韩阳,白亚强,巴松涛.橡胶集料改性混凝土研究进展与应用[J].混凝土,2013(10):87-90+94.
[9] 赵林,李珠,王文婧.掺加玻化微珠颗粒对混凝土力学性能和导热系数的影响[J].施工技术,2015,44(15):63-66+77.
[10] 綦春明,张志恒.粉煤灰对混凝土亚微观孔结构影响研究[J].西安建筑科技大学学报(自然科学版),2009,41(02):288-291.

备注/Memo

备注/Memo:
收稿日期:2018-04-12
作者简介:冀超(1989—),男,本科,主要从事工程建设和监理工作。
更新日期/Last Update: 2018-08-15