A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Soft roadbed solid waste backfilling and dynamic compaction reinforcing method
The invention relates to the technical field of roadbed treatment, and discloses a soft roadbed solid waste backfilling and dynamic compaction reinforcing method which comprises the following steps: early-stage preparation: carrying out detailed geological survey on an area where a soft roadbed is located, screening and treating proper solid waste materials, and carrying out dynamic compaction on the solid waste materials; making a solid waste backfilling and dynamic compaction reinforcement construction scheme according to an engineering investigation result and solid waste characteristics; subgrade cleaning: removing soft soil, sundries and vegetation on the surface of the soft subgrade; the solid waste materials are evenly laid on the soft roadbed in a layering mode, and the thickness of each layer is usually controlled to be 30-50 cm; preliminary compaction is conducted, specifically, each layer of solid waste backfilled on the soft roadbed is compacted through a light road roller; and trial ramming: closing. According to the method, 1%-2.5% of ammonium carbonate and 1%-2.5% of ammonium bicarbonate are added into the ground steel slag, so that the steel slag can be effectively removed, and the problems that free calcium oxide and free magnesium oxide are subjected to hydration reaction when encountering water to cause volume expansion, and a roadbed possibly bulges and cracks after backfilling are solved.
本发明涉及路基处理技术领域，公开了软弱路基固废回填及动态压实加固方法，包括以下步骤：前期准备：对软弱路基所在区域进行详细地质勘察，筛选与处理合适的固废材料，根据工程勘察结果和固废特性制定固废回填及动态压实加固施工方案；路基清理：清除软弱路基表面的松软土、杂物和植被；分层回填：采用分层方式将固废材料均匀铺设于软弱路基上，每层厚度通常控制在30‑50厘米；初步压实：采用轻型压路机对每层回填在软弱路基上的固废进行压实；试夯：对关。本发明中，通过向磨细处理后的钢渣中加入1％‑2.5％的碳酸铵以及1％‑2.5％的碳酸氢铵能够有效去除钢渣，从而改善游离氧化钙和游离氧化镁，遇水发生水化反应致体积膨胀，致使回填后可能出现路基隆起开裂问题。
Soft roadbed solid waste backfilling and dynamic compaction reinforcing method
The invention relates to the technical field of roadbed treatment, and discloses a soft roadbed solid waste backfilling and dynamic compaction reinforcing method which comprises the following steps: early-stage preparation: carrying out detailed geological survey on an area where a soft roadbed is located, screening and treating proper solid waste materials, and carrying out dynamic compaction on the solid waste materials; making a solid waste backfilling and dynamic compaction reinforcement construction scheme according to an engineering investigation result and solid waste characteristics; subgrade cleaning: removing soft soil, sundries and vegetation on the surface of the soft subgrade; the solid waste materials are evenly laid on the soft roadbed in a layering mode, and the thickness of each layer is usually controlled to be 30-50 cm; preliminary compaction is conducted, specifically, each layer of solid waste backfilled on the soft roadbed is compacted through a light road roller; and trial ramming: closing. According to the method, 1%-2.5% of ammonium carbonate and 1%-2.5% of ammonium bicarbonate are added into the ground steel slag, so that the steel slag can be effectively removed, and the problems that free calcium oxide and free magnesium oxide are subjected to hydration reaction when encountering water to cause volume expansion, and a roadbed possibly bulges and cracks after backfilling are solved.
本发明涉及路基处理技术领域，公开了软弱路基固废回填及动态压实加固方法，包括以下步骤：前期准备：对软弱路基所在区域进行详细地质勘察，筛选与处理合适的固废材料，根据工程勘察结果和固废特性制定固废回填及动态压实加固施工方案；路基清理：清除软弱路基表面的松软土、杂物和植被；分层回填：采用分层方式将固废材料均匀铺设于软弱路基上，每层厚度通常控制在30‑50厘米；初步压实：采用轻型压路机对每层回填在软弱路基上的固废进行压实；试夯：对关。本发明中，通过向磨细处理后的钢渣中加入1％‑2.5％的碳酸铵以及1％‑2.5％的碳酸氢铵能够有效去除钢渣，从而改善游离氧化钙和游离氧化镁，遇水发生水化反应致体积膨胀，致使回填后可能出现路基隆起开裂问题。
Soft roadbed solid waste backfilling and dynamic compaction reinforcing method
软弱路基固废回填及动态压实加固方法
XU ZHICHAO (author) / CHEN YUNSHAN (author) / DENG CHAO (author) / LIU ZHANJUN (author) / WANG XINZHONG (author) / WU YUEXING (author)
2024-12-31
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
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CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE