石灰改良土路基填筑試驗段施工技術
- 作者： 楊永保
- 論文摘要
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［摘要］ 為滿足列車高速運行時路基強度、變形以及路基工后沉降的要求，在缺乏優質填料的情況下，采用改良土來改善土的結構，提高承載力，以滿足工程需要，并降低成本，縮短工期，取得較好的經濟效益。本試驗段施工通過科學試驗，找出最佳和最經濟的改良方法、最佳的配合比參數和施工工藝以指導全線施工。以工程實例形式詳細介紹了石灰改良土路基填筑試驗段施工技術，包括路基施工和路基表層以下石灰改良土施工。［關鍵詞］ 路基；石灰改良土；填筑；施工技術
Test Section Construction Technology of Limestabilized Soils Subgrade FillingYang Yongbao(Overseas Company of China Railway Seventh Group Co.， Ltd., Zhengzhou, He′nan450016, China)
Abstract:When the high grade filling material is seriously lacking, the structure of soilis made, and bearing capacity is improved by using improved soil to satisfy the requirements of subgrade strength, deformation, postconstruction settlement and engineering demands, cost is reduced, construction period is shortened, the economic benefits are obtained. This test construction goal should be through scientific tests to find out optimum and most economic improved method to provide a guidance for concrete construction. Test section construction technology of limestabilized soils subgrade filling was introduced in detail by combining with practical work in this paper，including bed construction and the constructionof limestabilized soils below subgrade.Key words:subgrade; limestabilized soils; filling; construction technology
