MECHANICAL STABILISATION, CHEAP EFFECTIVE WAY OF IMPROVING THE MARGINAL MATERIALS FOR ROAD CONSTRUCTION

This paper presents a cost-effective method of improving the quality of marginal geo-materials through mechanical stabilisation. Two case study of the mechanical stabilisation as used during the construction of two projects in Tanzania, namely Mwika – Kilacha and Songea-Namtumbo, is presented. In both cases, substantial savings to the contract were realised. In this paper, the geotechnical and geo-mechanical properties of the geo-materials from these two cited projects before mechanical modification and after mechanical modification are presented and discussed. From the laboratory results as well as field test results, it can be concluded that mechanical stabilisation is the simplest method of stabilisation yet cost-effective means of improving the geotechnical and geo-mechanical properties of the marginal geo-materials.

本文提出了一种通过机械稳定化提高边际地质材料质量的经济有效方法。文章详细介绍了在坦桑尼亚两个建设项目中应用机械稳定化的两个案例研究，即Mwika-Kilacha和Songea-Namtumbo。在这两个案例中，合同成本均实现了显著节约。本文对这两个项目中提及的地质材料在机械改性前后的岩土工程和岩土力学性质进行了展示与讨论。通过对实验室结果及现场测试结果的分析，可以得出结论：机械稳定化是最简便且经济有效的稳定化方法，能够有效提升边际地质材料的岩土工程和岩土力学性质。