Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grouting type prefabricated reducing screw anti-floating anchor rod and construction method
The invention discloses a grouting type prefabricated variable-diameter screw anti-floating anchor rod and a construction method, and belongs to the technical field of anti-floating anchor rods, the anchor rod comprises variable-diameter screw teeth arranged on the outer wall of an anchor rod body, the variable-diameter screw teeth are arranged along the outer wall of the anchor rod body in a full-length mode, the diameter of the variable-diameter screw teeth is gradually decreased from the upper rod body to the rotation-in end of the lower rod body, and the diameter of the variable-diameter screw teeth is larger than that of the variable-diameter screw teeth. When the anchor rod body is spun into a foundation soil layer through the arranged reducing screw teeth, the side friction resistance between the anti-floating anchor rod and the soil body is enhanced; meanwhile, the reducing screw teeth extrude the surrounding soil body in the spinning process, the permeability of the soil body is reduced, the compactness and strength of the surrounding soil body are improved, the pulling resistance of the anti-floating anchor rod is improved, a gap between the anchor rod and the surrounding soil body is filled with a grout outlet hole and a grout outlet of the grouting pipe, the surrounding soil body of the anchor rod is reinforced, and the pulling resistance of the anchor rod is further improved; and anchor sinking and grouting reinforcement are continuously carried out, so that the construction progress is accelerated while traditional anchor rod construction procedures are reduced, and the construction cost is saved.
本发明公开了一种注浆型预制变径螺杆抗浮锚杆及施工方法，属于抗浮锚杆技术领域，该锚杆，包括设置在锚杆杆体外壁的变径螺齿，变径螺齿沿着锚杆杆体的外壁通长设置，变径螺齿的直径从上部杆体至下部杆体的转入端直径逐步变小，通过设置的变径螺齿将锚杆杆体旋压钻进地基土层时，增强抗浮锚杆与土体间的侧摩阻力；同时，变径螺齿在旋压过程中挤压四周土体，降低土体的渗透性能，提高周边土体密实度和强度，提高抗浮锚杆的抗拔力，利用注浆管出浆孔和出浆口填充锚杆与周边土体之间的空隙并加固锚杆周边土体，进一步提高锚杆抗拔力；沉锚和注浆加固连续进行，减少传统锚杆施工工序的同时加快施工进度，节约工程造价。
Grouting type prefabricated reducing screw anti-floating anchor rod and construction method
The invention discloses a grouting type prefabricated variable-diameter screw anti-floating anchor rod and a construction method, and belongs to the technical field of anti-floating anchor rods, the anchor rod comprises variable-diameter screw teeth arranged on the outer wall of an anchor rod body, the variable-diameter screw teeth are arranged along the outer wall of the anchor rod body in a full-length mode, the diameter of the variable-diameter screw teeth is gradually decreased from the upper rod body to the rotation-in end of the lower rod body, and the diameter of the variable-diameter screw teeth is larger than that of the variable-diameter screw teeth. When the anchor rod body is spun into a foundation soil layer through the arranged reducing screw teeth, the side friction resistance between the anti-floating anchor rod and the soil body is enhanced; meanwhile, the reducing screw teeth extrude the surrounding soil body in the spinning process, the permeability of the soil body is reduced, the compactness and strength of the surrounding soil body are improved, the pulling resistance of the anti-floating anchor rod is improved, a gap between the anchor rod and the surrounding soil body is filled with a grout outlet hole and a grout outlet of the grouting pipe, the surrounding soil body of the anchor rod is reinforced, and the pulling resistance of the anchor rod is further improved; and anchor sinking and grouting reinforcement are continuously carried out, so that the construction progress is accelerated while traditional anchor rod construction procedures are reduced, and the construction cost is saved.
本发明公开了一种注浆型预制变径螺杆抗浮锚杆及施工方法，属于抗浮锚杆技术领域，该锚杆，包括设置在锚杆杆体外壁的变径螺齿，变径螺齿沿着锚杆杆体的外壁通长设置，变径螺齿的直径从上部杆体至下部杆体的转入端直径逐步变小，通过设置的变径螺齿将锚杆杆体旋压钻进地基土层时，增强抗浮锚杆与土体间的侧摩阻力；同时，变径螺齿在旋压过程中挤压四周土体，降低土体的渗透性能，提高周边土体密实度和强度，提高抗浮锚杆的抗拔力，利用注浆管出浆孔和出浆口填充锚杆与周边土体之间的空隙并加固锚杆周边土体，进一步提高锚杆抗拔力；沉锚和注浆加固连续进行，减少传统锚杆施工工序的同时加快施工进度，节约工程造价。
Grouting type prefabricated reducing screw anti-floating anchor rod and construction method
一种注浆型预制变径螺杆抗浮锚杆及施工方法
WANG JINLIN (Autor:in) / TANG YIN (Autor:in) / WANG PENG (Autor:in) / KANG JINGWEN (Autor:in) / LI XIAOCEN (Autor:in) / REN PENG (Autor:in) / LIU YONGGANG (Autor:in) / MA JIE (Autor:in) / LIU YONGHONG (Autor:in) / CUI CHANGFEI (Autor:in)
07.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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