Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of prestressed steel strand high-pressure jet expanded-head anchor rod
The invention discloses a construction method of a prestressed steel strand high-pressure jet expanded-head anchor rod, which comprises the following steps: (1) preparing a rod body: the rod body comprises a steel strand and a prefabricated anchor head connected to the steel strand, the prefabricated anchor head comprises a shell and an anchor disc positioned in the shell, the steel strand is fixed on the anchor disc, an anchoring block is arranged in the shell, and the anchoring block is fixed on the shell; the anchor disc is fixed in the shell by the anchoring block; (2) drilling an anchor rod hole; (3) the rod body with the secondary grouting pipe is inserted into the anchor rod hole, secondary grouting is conducted on the interior of the anchor rod hole through the secondary grouting pipe, and an anchoring body is formed after slurry in the anchor rod hole is solidified; and (4) after the anchoring body reaches the set strength, the steel strand is tensioned to apply prestress, and after tensioning is completed, the steel strand is locked. The anchor disc is pre-buried in the anchoring block to form the prefabricated anchor head, the quality of the prefabricated anchor head can be guaranteed, the phenomena that an anchoring body cracks, fractures and the like at the anchor disc due to tension are avoided, and the quality and the service life of the anchor rod are guaranteed.
本申请公开了一种预应力钢绞线高压喷射扩大头锚杆的施工方法，步骤为：(1)制备杆体：杆体包括钢绞线和连接在钢绞线上的预制锚头，预制锚头包括外壳和位于外壳内的锚盘，钢绞线固定在锚盘上，在外壳内具有锚固块，锚盘被锚固块固定在外壳内；(2)钻设锚杆孔；(3)将携带二次注浆管的杆体插入到锚杆孔内，经二次注浆管向锚杆孔内进行二次注浆，锚杆孔内的浆料凝固后形成为锚固体；(4)当锚固体达到设定强度后，对钢绞线进行张拉施加预应力，在完成张拉后，将钢绞线锁定。本申请将锚盘预埋在锚固块内，形成预制锚头，能够保证预制锚头的质量，避免由于拉力而导致锚固体在锚盘处出现裂纹、断裂等现象，保证锚杆的质量和使用寿命。
Construction method of prestressed steel strand high-pressure jet expanded-head anchor rod
The invention discloses a construction method of a prestressed steel strand high-pressure jet expanded-head anchor rod, which comprises the following steps: (1) preparing a rod body: the rod body comprises a steel strand and a prefabricated anchor head connected to the steel strand, the prefabricated anchor head comprises a shell and an anchor disc positioned in the shell, the steel strand is fixed on the anchor disc, an anchoring block is arranged in the shell, and the anchoring block is fixed on the shell; the anchor disc is fixed in the shell by the anchoring block; (2) drilling an anchor rod hole; (3) the rod body with the secondary grouting pipe is inserted into the anchor rod hole, secondary grouting is conducted on the interior of the anchor rod hole through the secondary grouting pipe, and an anchoring body is formed after slurry in the anchor rod hole is solidified; and (4) after the anchoring body reaches the set strength, the steel strand is tensioned to apply prestress, and after tensioning is completed, the steel strand is locked. The anchor disc is pre-buried in the anchoring block to form the prefabricated anchor head, the quality of the prefabricated anchor head can be guaranteed, the phenomena that an anchoring body cracks, fractures and the like at the anchor disc due to tension are avoided, and the quality and the service life of the anchor rod are guaranteed.
本申请公开了一种预应力钢绞线高压喷射扩大头锚杆的施工方法，步骤为：(1)制备杆体：杆体包括钢绞线和连接在钢绞线上的预制锚头，预制锚头包括外壳和位于外壳内的锚盘，钢绞线固定在锚盘上，在外壳内具有锚固块，锚盘被锚固块固定在外壳内；(2)钻设锚杆孔；(3)将携带二次注浆管的杆体插入到锚杆孔内，经二次注浆管向锚杆孔内进行二次注浆，锚杆孔内的浆料凝固后形成为锚固体；(4)当锚固体达到设定强度后，对钢绞线进行张拉施加预应力，在完成张拉后，将钢绞线锁定。本申请将锚盘预埋在锚固块内，形成预制锚头，能够保证预制锚头的质量，避免由于拉力而导致锚固体在锚盘处出现裂纹、断裂等现象，保证锚杆的质量和使用寿命。
Construction method of prestressed steel strand high-pressure jet expanded-head anchor rod
一种预应力钢绞线高压喷射扩大头锚杆的施工方法
LI RENMIN (Autor:in) / LU WEILIANG (Autor:in) / LIU XIAOBO (Autor:in)
09.07.2024
Patent
Elektronische Ressource
Chinesisch
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