可控低强度材料(CLSM)作为充填体:CLSM性能试验研究及PLAXIS 2D应力应变数值计算

IF 1.7 Q3 ENGINEERING, GEOLOGICAL
L. K, Akhilesh Kumar, C. Singh
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引用次数: 0

摘要

摘要挡土墙是岩土工程施工行业的一部分,用于支撑结构免受土壤侵蚀。颗粒材料通常用作挡土墙后面的回填土。现在也使用其他工业副产品来代替传统的压实颗粒填料。将这些工业副产品用于土木工程应用有助于通过减少废物沉积来建立可持续的环境。本文对用于回填应用的粉煤灰基可控低强度材料(CLSM)的性能进行了实验研究。研究了池塘灰基CLSM混合物的性能,以确定利用CLSM进行回填应用的有效性。此外,使用PLAXIS 2D进行了数值分析,以评估不同回填材料在挡土墙中产生的应力和位移。据观察,CLSM混合料具有将其用作回填材料所需的性能。与正常压实回填材料相比,在使用CLSM的情况下产生的应力和变形可以忽略不计。因此,对CLSM混合料的研究表明,池塘灰可以用作天然骨料的替代品,天然骨料可以用作挡土墙的回填材料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Controlled Low-Strength Materials (CLSM) as backfill: experimental investigation on CLSM properties and numerical evaluation of stresses and strains using PLAXIS 2D
ABSTRACT Retaining walls are a part of the geotechnical construction industry for the support of structures from soil erosion. Granular materials are conventionally used as backfill behind retaining walls. Instead of the conventional compacted granular fill, other industrial by-products are also used nowadays. The utilisation of these industrial by-products for Civil engineering applications helps to build a sustainable environment by reducing the waste depositions. In this paper, an experimental study was conducted to evaluate the properties of coal ash-based Controlled Low Strength Materials (CLSM) for backfill applications. The properties of pond ash-based CLSM mixes were studied to identify the effectiveness in utilising CLSM for backfill applications. Further, numerical analysis using PLAXIS 2D was carried out to evaluate the stresses and displacements developed in retaining walls for different backfilling materials. It was observed that CLSM mixes exhibit the properties required for utilising it as a backfill material. The stresses and deformations developed in situations where CLSM was used were found to be negligible compared to the normal compacted backfill materials. Thus, the studies on CLSM mixes showed that pond ash can be used as a replacement to natural aggregates which can be used as a backfill for retaining wall applications.
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来源期刊
CiteScore
3.80
自引率
0.00%
发文量
27
期刊介绍: Geomechanics is concerned with the application of the principle of mechanics to earth-materials (namely geo-material). Geoengineering covers a wide range of engineering disciplines related to geo-materials, such as foundation engineering, slope engineering, tunnelling, rock engineering, engineering geology and geo-environmental engineering. Geomechanics and Geoengineering is a major publication channel for research in the areas of soil and rock mechanics, geotechnical and geological engineering, engineering geology, geo-environmental engineering and all geo-material related engineering and science disciplines. The Journal provides an international forum for the exchange of innovative ideas, especially between researchers in Asia and the rest of the world.
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