A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for widening embankment by using waste tires
The invention belongs to the technical field of highway embankment widening engineering, and particularly relates to an embankment widening method using waste tires. The method is suitable for a low-embankment widening project with the embankment height smaller than the subgrade working area depth and mainly comprises the following steps that a flattened and compacted side slope is excavated into terrace-shaped steps, rigid piles with the preset density are constructed on the outer edge of foundation soil of a base of a widening part, pile caps are formed at the tops of the rigid piles, and the pile caps and the rigid piles are arranged in a staggered mode; and a geogrid-waste tire-graded broken stone reinforced cushion layer is laid, and construction is conducted step by step from bottom to top along the steps. The waste tires have the three-dimensional structure higher than that of the geocell, certain bending resistance is achieved, vertical stress transmitted from the upper portion can be effectively diffused through the effects of lateral constraint, vertical friction and the like in the waste tires, the good deformation coordinating effect can be achieved under the differential settlement condition, and the effect of deformation coordinating is achieved. Therefore, differential settlement between the existing embankment and the embankment widening part is effectively controlled.
本发明属于公路路堤拓宽工程技术领域，具体涉及一种利用废旧轮胎的路堤拓宽方法。该方法适用于路堤高度小于路基工作区深度的低路堤拓宽工程，主要包括以下步骤：将经平整压实的边坡开挖成“梯田状”台阶，在拓宽部分基底的地基土外边缘处施工预设密度的刚性桩，并在刚性桩的顶部成型桩帽，铺设“土工格栅‑废旧轮胎‑级配碎石”加筋垫层，沿台阶自下而上逐级施工。本发明利用废旧轮胎具有比土工格室更强的三维立体结构性，不仅具备一定的抗弯能力，而且内部还有侧向约束、竖向摩擦等作用能有效扩散从上部传来的竖向应力，能够在差异沉降条件下发挥很好的协调变形作用，从而有效控制既有路堤和路堤拓宽部分之间的差异沉降。
Method for widening embankment by using waste tires
The invention belongs to the technical field of highway embankment widening engineering, and particularly relates to an embankment widening method using waste tires. The method is suitable for a low-embankment widening project with the embankment height smaller than the subgrade working area depth and mainly comprises the following steps that a flattened and compacted side slope is excavated into terrace-shaped steps, rigid piles with the preset density are constructed on the outer edge of foundation soil of a base of a widening part, pile caps are formed at the tops of the rigid piles, and the pile caps and the rigid piles are arranged in a staggered mode; and a geogrid-waste tire-graded broken stone reinforced cushion layer is laid, and construction is conducted step by step from bottom to top along the steps. The waste tires have the three-dimensional structure higher than that of the geocell, certain bending resistance is achieved, vertical stress transmitted from the upper portion can be effectively diffused through the effects of lateral constraint, vertical friction and the like in the waste tires, the good deformation coordinating effect can be achieved under the differential settlement condition, and the effect of deformation coordinating is achieved. Therefore, differential settlement between the existing embankment and the embankment widening part is effectively controlled.
本发明属于公路路堤拓宽工程技术领域，具体涉及一种利用废旧轮胎的路堤拓宽方法。该方法适用于路堤高度小于路基工作区深度的低路堤拓宽工程，主要包括以下步骤：将经平整压实的边坡开挖成“梯田状”台阶，在拓宽部分基底的地基土外边缘处施工预设密度的刚性桩，并在刚性桩的顶部成型桩帽，铺设“土工格栅‑废旧轮胎‑级配碎石”加筋垫层，沿台阶自下而上逐级施工。本发明利用废旧轮胎具有比土工格室更强的三维立体结构性，不仅具备一定的抗弯能力，而且内部还有侧向约束、竖向摩擦等作用能有效扩散从上部传来的竖向应力，能够在差异沉降条件下发挥很好的协调变形作用，从而有效控制既有路堤和路堤拓宽部分之间的差异沉降。
Method for widening embankment by using waste tires
一种利用废旧轮胎的路堤拓宽方法
XIE MINGXING (author) / ZONG SHUAITAO (author) / MIAO CHENXI (author) / XIE XIAOWEI (author)
2024-10-18
Patent
Electronic Resource
Chinese
Method of widening embankment foundation at embankment-penetrating building
| European Patent Office | 2020
Embankment widening with the Gap-method
| British Library Conference Proceedings | 1999