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Construction method of high fill roadbed under soft foundation of abrupt slope terrain
The invention provides a construction method of a high-fill roadbed under a soft foundation of abrupt slope terrain, which comprises the following steps of: S1, performing slope cutting and grading step excavation treatment on the original ground, and constructing a plurality of rows of anchor bars at the sideline of the roadbed and every other step; s2, straining beams are constructed on the anchor bars at the side boundary of the roadbed, a cast-in-place panel is formed above the straining beams in a pouring mode, and steel tie bars are pre-buried in the cast-in-place panel; pre-stressed anchor cables are arranged on the cast-in-place panel, and the cast-in-place panel and the soil body are anchored through the pre- S3, foundation sewers are arranged in the longitudinal direction and the transverse direction of the road at intervals; s4, after the strength of the previous section of cast-in-place panel meets the requirement, layering is conducted, and foam light soil is poured in a segmented mode; and S5, the cast-in-place panel and the foam light soil are synchronously poured to the top of the roadbed. The technical problem that in the prior art, under the adverse conditions of soft foundations, abrupt slope terrains and the like, it cannot be guaranteed that rapid filling can reach the top elevation of the roadbed under the safe, stable and efficient conditions can be solved.
本发明提供一种陡坡地形软弱基础下高填方路基的施工方法,包括以下步骤:S1,于原地面采取削坡分级台阶开挖处理,在路基边线处和每间隔一个台阶施作若干排锚筋;S2,在路基边线处的锚筋上施作系梁,于系梁上方浇筑形成现浇面板,现浇面板上预埋有拉结钢筋;在现浇面板设置预应力锚索,通过预应力锚索将现浇面板与土体锚固;S3,沿道路纵向及横向上间隔设置基础渗沟;S4,待上一节现浇面板的强度达到要求后分层、分段浇筑泡沫轻质土;S5,同步浇筑现浇面板和泡沫轻质土至路基顶。其能够解决现有技术在遇到软弱基础和陡坡地形等不利条件下,不能保证在安全稳定高效的条件下快速填筑达到路基顶部高程的技术问题。
Construction method of high fill roadbed under soft foundation of abrupt slope terrain
The invention provides a construction method of a high-fill roadbed under a soft foundation of abrupt slope terrain, which comprises the following steps of: S1, performing slope cutting and grading step excavation treatment on the original ground, and constructing a plurality of rows of anchor bars at the sideline of the roadbed and every other step; s2, straining beams are constructed on the anchor bars at the side boundary of the roadbed, a cast-in-place panel is formed above the straining beams in a pouring mode, and steel tie bars are pre-buried in the cast-in-place panel; pre-stressed anchor cables are arranged on the cast-in-place panel, and the cast-in-place panel and the soil body are anchored through the pre- S3, foundation sewers are arranged in the longitudinal direction and the transverse direction of the road at intervals; s4, after the strength of the previous section of cast-in-place panel meets the requirement, layering is conducted, and foam light soil is poured in a segmented mode; and S5, the cast-in-place panel and the foam light soil are synchronously poured to the top of the roadbed. The technical problem that in the prior art, under the adverse conditions of soft foundations, abrupt slope terrains and the like, it cannot be guaranteed that rapid filling can reach the top elevation of the roadbed under the safe, stable and efficient conditions can be solved.
本发明提供一种陡坡地形软弱基础下高填方路基的施工方法,包括以下步骤:S1,于原地面采取削坡分级台阶开挖处理,在路基边线处和每间隔一个台阶施作若干排锚筋;S2,在路基边线处的锚筋上施作系梁,于系梁上方浇筑形成现浇面板,现浇面板上预埋有拉结钢筋;在现浇面板设置预应力锚索,通过预应力锚索将现浇面板与土体锚固;S3,沿道路纵向及横向上间隔设置基础渗沟;S4,待上一节现浇面板的强度达到要求后分层、分段浇筑泡沫轻质土;S5,同步浇筑现浇面板和泡沫轻质土至路基顶。其能够解决现有技术在遇到软弱基础和陡坡地形等不利条件下,不能保证在安全稳定高效的条件下快速填筑达到路基顶部高程的技术问题。
Construction method of high fill roadbed under soft foundation of abrupt slope terrain
一种陡坡地形软弱基础下高填方路基的施工方法
CAI MINGTONG (Autor:in) / MA WENHUI (Autor:in) / NONG QIFENG (Autor:in) / ZHENG JIAN (Autor:in) / ZHOU DISONG (Autor:in) / JIANG JUN (Autor:in) / FU LIUYUAN (Autor:in) / CHEN KELIN (Autor:in) / YI WENJIE (Autor:in) / ZHENG XIANG (Autor:in)
20.09.2024
Patent
Elektronische Ressource
Chinesisch
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