A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Grouting squeezing and expanding steel pipe anchor rod structure and construction method thereof
The invention provides a grouting squeezing and expanding steel pipe anchor rod structure and a construction method thereof.The grouting squeezing and expanding steel pipe anchor rod structure comprises a steel pipe, a grouting device and a slurry bundling bag, the steel pipe is located in an anchoring hole, and the top end of the steel pipe extends out of the anchoring hole and is connected with the grouting device; the grout bundling bag wraps part of the steel pipe, the two ends of the grout bundling bag are connected with the steel pipe to form a closed space, a plurality of grouting holes communicated with the closed space are formed in the steel pipe, and the grouting device is used for injecting grout into the closed space through the steel pipe. And the grouting bag is expanded, and the hole wall of the anchoring hole is extruded and expanded outwards. The steel pipe can be used as a grouting pipe and can also be used as an anchor rod body, and the structure of the anchor rod is greatly simplified while the anti-pulling capacity of the anchor rod is improved. After grout is injected into the closed space through the grouting device, the grout bundling bag expands and extrudes and expands the hole wall of the anchoring hole outwards, the grout stone body extruding and expanding section is formed after the grout is hardened, and the bearing performance of the anchor rod can be remarkably improved.
本发明提供了一种注浆挤扩钢管锚杆结构及其施工方法，注浆挤扩钢管锚杆结构包括钢管、注浆装置及束浆袋，所述钢管位于一锚固孔内且顶端伸出所述锚固孔并与所述注浆装置连接，所述束浆袋包覆在部分所述钢管外且两端与所述钢管连接并形成一密闭空间，所述钢管上开设有若干连通所述密闭空间的注浆孔，所述注浆装置用于通过所述钢管向所述密闭空间注入浆液，以使所述束浆袋膨胀并向外挤扩所述锚固孔的孔壁。钢管既可以作为注浆管，可以又作为锚杆杆体，在提升锚杆的抗拔能力的同时极大地简化了锚杆结构。通过注浆装置向密闭空间注入浆液后，束浆袋膨胀并向外挤扩所述锚固孔的孔壁，浆液硬化后形成浆液结石体挤扩段，能够显著提升锚杆的承载性能。
Grouting squeezing and expanding steel pipe anchor rod structure and construction method thereof
The invention provides a grouting squeezing and expanding steel pipe anchor rod structure and a construction method thereof.The grouting squeezing and expanding steel pipe anchor rod structure comprises a steel pipe, a grouting device and a slurry bundling bag, the steel pipe is located in an anchoring hole, and the top end of the steel pipe extends out of the anchoring hole and is connected with the grouting device; the grout bundling bag wraps part of the steel pipe, the two ends of the grout bundling bag are connected with the steel pipe to form a closed space, a plurality of grouting holes communicated with the closed space are formed in the steel pipe, and the grouting device is used for injecting grout into the closed space through the steel pipe. And the grouting bag is expanded, and the hole wall of the anchoring hole is extruded and expanded outwards. The steel pipe can be used as a grouting pipe and can also be used as an anchor rod body, and the structure of the anchor rod is greatly simplified while the anti-pulling capacity of the anchor rod is improved. After grout is injected into the closed space through the grouting device, the grout bundling bag expands and extrudes and expands the hole wall of the anchoring hole outwards, the grout stone body extruding and expanding section is formed after the grout is hardened, and the bearing performance of the anchor rod can be remarkably improved.
本发明提供了一种注浆挤扩钢管锚杆结构及其施工方法，注浆挤扩钢管锚杆结构包括钢管、注浆装置及束浆袋，所述钢管位于一锚固孔内且顶端伸出所述锚固孔并与所述注浆装置连接，所述束浆袋包覆在部分所述钢管外且两端与所述钢管连接并形成一密闭空间，所述钢管上开设有若干连通所述密闭空间的注浆孔，所述注浆装置用于通过所述钢管向所述密闭空间注入浆液，以使所述束浆袋膨胀并向外挤扩所述锚固孔的孔壁。钢管既可以作为注浆管，可以又作为锚杆杆体，在提升锚杆的抗拔能力的同时极大地简化了锚杆结构。通过注浆装置向密闭空间注入浆液后，束浆袋膨胀并向外挤扩所述锚固孔的孔壁，浆液硬化后形成浆液结石体挤扩段，能够显著提升锚杆的承载性能。
Grouting squeezing and expanding steel pipe anchor rod structure and construction method thereof
注浆挤扩钢管锚杆结构及其施工方法
HU YUYIN (author) / SHAO CHENCHEN (author)
2023-03-31
Patent
Electronic Resource
Chinese
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