红层泥岩地区抗浮锚杆施工改进工艺探讨
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摘要
红层泥岩是比较特殊的一类岩土体,在该类地层中进行抗浮锚杆施工时,因红层泥岩具有遇水软化强度降低、破碎后在锚孔内易形成含水量较高的塑性泥土、泥浆附着于孔壁影响锚固体强度、进入大气形成扬尘污染环境等不良特性,常导致地基土承载力受到扰动、锚固体抗拔承载力不足、施工现场作业环境恶劣等问题。针对以上难题,秉承因地制宜、绿色环保的原则对施工工艺进行了改进,并通过应用实例验证了改进工艺的可行性,改进后的抗浮锚杆施工工艺具有极好的推广价值,能够为今后类似工程的建设提供一定的参考和借鉴。
Red-Mudstone is a special aggregation of rock and soil,during the construction of anti-floaty anchor in this kind of stratum,the red-mudstone has some bad characteristics, such as softening strength in water,forming plastic soil with high water content in the anchor hole after crushing,attaching mud to the hole wall and influencing the strength of anchor,forming dust polluted environment when entering the atmosphere,which often leads to disturbance of the bearing capacity of foundation soil,insufficient uplift bearing capacity of anchor rod and the industry environment is bad and so on.In view of the above problems,this paper improves the construction technology according to local conditions and the principles of green environmental protection,and verifies the feasibility of the improved technology through application examples.The improved antifloaty anchor construction technology has excellent popularization value,and can provide a certain reference for the construction of similar projects in the future.
Red-Mudstone is a special aggregation of rock and soil,during the construction of anti-floaty anchor in this kind of stratum,the red-mudstone has some bad characteristics, such as softening strength in water,forming plastic soil with high water content in the anchor hole after crushing,attaching mud to the hole wall and influencing the strength of anchor,forming dust polluted environment when entering the atmosphere,which often leads to disturbance of the bearing capacity of foundation soil,insufficient uplift bearing capacity of anchor rod and the industry environment is bad and so on.In view of the above problems,this paper improves the construction technology according to local conditions and the principles of green environmental protection,and verifies the feasibility of the improved technology through application examples.The improved antifloaty anchor construction technology has excellent popularization value,and can provide a certain reference for the construction of similar projects in the future.
引文
[1]杨宗才,张俊云,周德培.红层泥岩边坡快速风化特性研究[J].岩石力学与工程学报,2006(2):275-283.
[2]李永志.龙泉山红层泥岩分布规律及其工程性质研究[D].西南交通大学,2017.
[3]黄宏伟,车平.泥岩遇水软化微观机理研究[J].同济大学学报(自然科学版),2007(7):866-870.
[4]岳大昌,朱维新,欧鹏,等.一种抗浮锚杆收渣降尘装置[P].
[2]李永志.龙泉山红层泥岩分布规律及其工程性质研究[D].西南交通大学,2017.
[3]黄宏伟,车平.泥岩遇水软化微观机理研究[J].同济大学学报(自然科学版),2007(7):866-870.
[4]岳大昌,朱维新,欧鹏,等.一种抗浮锚杆收渣降尘装置[P].