Temporary road construction method for soft soil site: Fid-Bau Portal

Temporary road construction method for soft soil site

HUANG XIAOLIANG / SHI DECHAO / ZHU SHAOQING / XU LIJIE / LI XIN / XUE ZONGLONG / RAN GUANGZE

The invention provides a soft soil site temporary road construction method. The method comprises the steps that temporary road position paying-off is conducted; shallow-layer solidification foundation treatment is carried out by using silt soft soil mixed with Portland cement or a curing agent taking a cement base as a main material as a material, and in-situ solidification treatment is carried out on foundation soil; leveling and rolling the existing roadbed in the construction area; paving gravels on the top of the roadbed, and paving a layer of bidirectional plastic geogrid on the top layer of the gravels; binding reinforcing steel bars to the temporary pavement structure, and pouring concrete; a dowel bar is arranged in the expansion joint, and a pull rod is arranged in the longitudinal shrinkage joint; after the temporary road structure is maintained, the road surface between the expansion joints is subjected to joint cutting in a segmented and segmented mode; and after the road meets the preset strength, opening temporary road traffic for driving. By adopting the innovative temporary road foundation structure design, the problems of rapid settlement, cracking and the like of the temporary road in the using process are solved, and the service life of the temporary road in the using process is ensured.

本发明提供了一种软土场地临时道路施工方法，该方法包括：进行临时道路地位放线；利用淤泥软土混合硅酸盐水泥或以水泥基为主要材料的固化剂作为材料的浅层固化地基处理，对地基土进行就地固化处理；对施工区域现有路基进行整平碾压；在路基顶铺设碎石，并在碎石顶层铺设一层双向塑料土工格栅；临时路面结构绑扎钢筋，浇筑混凝土；设置胀缝，胀缝中设传力杆纵向缩缝设拉杆；进行临时道路结构养护后，将胀缝间的路面分段、分块切缝；道路满足预设强度后，开放临时道路交通行驶。本发明通过采取创新临时道路地基结构设计，解决了临时道路在使用过程中快速沉降、开裂等病害，确保临时道路在使用过程中的使用寿命。

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