An Analytical Approach to Estimate the Load-Bearing Capacity of Subgrade Soil with a Geocell-Reinforced Base Layer

An Analytical Approach to Estimate the Load-Bearing Capacity of Subgrade Soil with a Geocell-Reinforced Base Layer
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土工格室加筋基层路基土承载能力的分析方法

DOI:
10.1061/9780784484067.038
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发表时间:
2022
期刊:
Geo-Congress 2022
影响因子:
--
通讯作者:
Jafari, Kamron H.
Jafari, Kamron H.
中科院分区:
--
文献类型:
--
作者:
Khan, Md. Ashrafuzzaman;Puppala, Anand J.;Biswas, Nripojyoti;Congress, Surya S.;Jafari, Kamron H.

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土工格室的广泛应用归功于它能够为填充材料提供额外的约束,并提高承载能力。目前可用于计算土工格室加筋地基承载能力的分析方法有限。现有的方法考虑了侧向土压力理论,这可能会导致对承载力的低估(活跃状态)或高估(静止状态)。本文提出了一种计算基层土工格室加筋路面基础系统承载能力提高的解析方法。该方法从弹性理论出发,估算基层内的径向应力,可用于确定未铺装路段的承载能力。当外加应力在极限应力的50%以内时,所提出的方法得到的结果最准确。
The widespread application of geocell can be attributed to its ability to provide additional confinement to the infill material and increase the load-bearing capacity. There are limited analytical approaches available to calculate the bearing capacity of the geocell-reinforced foundation. The available methods consider the lateral earth pressure theory, which may lead to the underestimation (active condition) or overestimation (at rest condition) of the bearing capacity values. This paper presents an analytical approach to calculate the improvement in load-bearing capacity of pavement foundation systems reinforced with geocell in the base layer. The proposed method estimated the radial stresses within the base layer from the theory of elasticity, which can be used to determine the bearing capacity of the unpaved road section. The proposed method yielded the most accurate results when the applied stress was within 50% of the ultimate stress.
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