Construction method for reinforcing loose soil body: Fid-Bau Portal

Construction method for reinforcing loose soil body

SONG HAO / HUANG BAOYIN / LIU GUORAN

The invention relates to a construction method for reinforcing a loose soil body, a grouting steel pipe is used as a pile template for reinforcing the loose soil body, slurry extends to a soil body around the grouting steel pipe through a grouting hole, and after the slurry is solidified, the grouting steel pipe and the surrounding soil body form a reinforcing pile, so that the fastening degree of the loose soil body is increased; when the method is used for reinforcing a local loose soil body, all sections of grouting steel pipes are sequentially spliced and inserted into the loose soil body, the soil body in the grouting steel pipes is taken out through a drill rod in the soil inserting process, the resistance of the grouting steel pipes entering the soil can be reduced, meanwhile, the amount of loose soil in the grouting steel pipes can be reduced, and the formed reinforcing pile is more stable; the arc-shaped blade covering structure is arranged outside the grouting hole, the situation that surrounding loose soil enters the grouting steel pipe through the grouting hole when the grouting steel pipe is inserted into the soil body is avoided, when the length of the grouting steel pipe meets the reinforcing requirement, the grouting steel pipe in the soil body is rotated, the arc-shaped blade is opened and leaks out of the grouting hole under the resistance effect of the soil body, and slurry is not influenced to spread all around.

本发明涉及一种加固松散土体的施工方法，注浆钢管作为加固松散土体的桩模板，浆液通过注浆孔向注浆钢管周围土体延伸，待浆液凝固后，注浆钢管和周围土体形成加固桩，从而增加松散土体的紧固程度；使用本方法加固局部松散土体时，将各节注浆钢管依次拼接地插入松散土体中，插土过程中通过钻杆将注浆钢管中的土体取出，能够减小注浆钢管入土的阻力，同时，能够减少注浆钢管中散土量，使形成的加固桩更加稳定；通过注浆孔外设置弧形刀片覆盖的结构，避免注浆钢管在插入土体时，周围散土通过注浆孔进入注浆钢管中，在注浆钢管长度达到加固要求时，旋转土体中的注浆钢管，弧形刀片在土体的阻力作用下打开，漏出注浆孔，不影响浆液向四周扩散。

Zugriff

Download

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren