Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tunnel vault reinforcing construction method
The invention belongs to the technical field of tunnel construction, and particularly relates to a tunnel vault reinforcing construction method. The tunnel vault reinforcing construction method comprises the following steps of 1, forming an anchor hole; 2, connecting a steel strand to an anchor, and pushing the anchor and a hole plugging device to the inner end of the anchor hole by using an anchor pushing device; 3, drawing a push rod of the pushing device out of the anchor hole; 4, injecting concrete slurry into the hole plugging device by using an slurry injecting pipeline; 5, arranging ananchor base at an opening of the anchor hole; 6, repeating the steps 2-5 until installation of anchor cables in all the anchor holes is completed, and then ending the construction. When reaching the inner end of the anchor hole, the anchor is squeezed by the inner end face of the anchor hole, an expansion block can automatically pop up, the expansion block is tensioned on the inner wall of the anchor hole so as to achieve primary fixation of the anchor, and convenience is brought to the follow-up construction. After the hole plugging device is fed into the inner end of the anchor hole, slurrycan be injected by using a slurry injection pipe, and then slurry is injected by using the slurry injection pipe, the slurry can closely connected with the inner wall of the anchor hole, and axial supporting force is provided for the anchor of the inner end of the hole plugging device.
本发明属于隧道施工技术领域，具体涉及一种隧道拱顶加固施工方法，包括如下步骤：步骤1：开设锚孔；步骤2：将钢绞线连接在锚具上，利用锚具推送装置将锚具和封孔装置推送至锚孔内端；步骤3：将推送装置的推杆从锚孔中抽出；步骤4：利用注浆管路向封孔装置加注混凝土浆液；步骤5：在锚孔孔口设置锚座；步骤6：重复上述步骤2‑步骤5，直至所有锚孔内的锚索全部安装完成，施工结束。本发明的锚具在到达锚孔内端时受到锚孔内端面挤压，能够自动将膨胀块弹出，膨胀块张紧在锚孔内壁上实现锚具的初步固定，为后续施工提供了便利；本发明的封孔装置被送入锚孔内端后采用注浆管进行注浆能够与锚孔内壁紧密结合，为其内端的锚具提供轴向支撑力。
Tunnel vault reinforcing construction method
The invention belongs to the technical field of tunnel construction, and particularly relates to a tunnel vault reinforcing construction method. The tunnel vault reinforcing construction method comprises the following steps of 1, forming an anchor hole; 2, connecting a steel strand to an anchor, and pushing the anchor and a hole plugging device to the inner end of the anchor hole by using an anchor pushing device; 3, drawing a push rod of the pushing device out of the anchor hole; 4, injecting concrete slurry into the hole plugging device by using an slurry injecting pipeline; 5, arranging ananchor base at an opening of the anchor hole; 6, repeating the steps 2-5 until installation of anchor cables in all the anchor holes is completed, and then ending the construction. When reaching the inner end of the anchor hole, the anchor is squeezed by the inner end face of the anchor hole, an expansion block can automatically pop up, the expansion block is tensioned on the inner wall of the anchor hole so as to achieve primary fixation of the anchor, and convenience is brought to the follow-up construction. After the hole plugging device is fed into the inner end of the anchor hole, slurrycan be injected by using a slurry injection pipe, and then slurry is injected by using the slurry injection pipe, the slurry can closely connected with the inner wall of the anchor hole, and axial supporting force is provided for the anchor of the inner end of the hole plugging device.
本发明属于隧道施工技术领域，具体涉及一种隧道拱顶加固施工方法，包括如下步骤：步骤1：开设锚孔；步骤2：将钢绞线连接在锚具上，利用锚具推送装置将锚具和封孔装置推送至锚孔内端；步骤3：将推送装置的推杆从锚孔中抽出；步骤4：利用注浆管路向封孔装置加注混凝土浆液；步骤5：在锚孔孔口设置锚座；步骤6：重复上述步骤2‑步骤5，直至所有锚孔内的锚索全部安装完成，施工结束。本发明的锚具在到达锚孔内端时受到锚孔内端面挤压，能够自动将膨胀块弹出，膨胀块张紧在锚孔内壁上实现锚具的初步固定，为后续施工提供了便利；本发明的封孔装置被送入锚孔内端后采用注浆管进行注浆能够与锚孔内壁紧密结合，为其内端的锚具提供轴向支撑力。
Tunnel vault reinforcing construction method
一种隧道拱顶加固施工方法
CHU SHUNQING (Autor:in) / WANG HUI (Autor:in)
12.06.2020
Patent
Elektronische Ressource
Chinesisch
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