Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optimal proportion scheme design of pisolite mortar anchor disc
The invention discloses an optimal matching scheme of a pisolite mortar anchor disc applied to a disc type anchor cable reinforcing structure. A disc type anchor cable is composed of a main reinforcement, a reinforcement support, an upper force bearing disc, a lower force bearing disc, an upper disc and a lower disc. An anchoring agent adopts pea gravel concrete, the optimal proportion of the grouting material and the matching relation between the grouting material and the steel bar support are provided, and a bearing capacity calculation method is established. The diameter of the anchor plate steel strand is 28.6 mm, and the tensile strength is 1860 MPa. 52.5 R-grade Portland cement is selected as a grouting material, and the mass ratio is 1; the particle size of pisolite is 4 mm, and the mass ratio is 0.87; the quartz sand is 325 meshes, and the mass ratio is 1.1; the admixture is a polycarboxylic acid type water reducing agent with the water reducing rate of 25%, and the mass ratio of the admixture to the polycarboxylic acid type water reducing agent is 0.02; the mass ratio of the tap water is 0.3. According to the method, the optimal sand ratio and cement slurry ratio of the ultimate bearing capacity of the anchor disc under the given steel bar support condition is obtained, the defect of mortar disc forming or grouting in disc type anchor cable application is overcome, the matching degree of the anchor rod grouting body strength and the anchor disc support strength is ensured, and the safety and reliability of reinforcement engineering are improved.
本发明开发了一种应用于盘式锚索加固结构的豆石砂浆锚盘最佳配比方案，盘式锚索由主筋、钢筋支架、上下承力盘、上下圆盘构成；锚固剂采用豆石混凝土，提出了注浆材料最优配比及其与钢筋支架的匹配关系，建立了其承载力计算方法。锚盘钢绞线选用直径为28.6mm，抗拉强度1860MPa。注浆体材料选用52.5R级硅酸盐水泥，质量比1；豆石粒径为4mm，质量比为0.87；石英砂325目，质量比为1.1；外加剂选用减水率25％的聚羧酸型减水剂，质量比为0.02；自来水，质量比为0.3。本发明获得锚盘在给定钢筋支架条件下极限承载力的最优砂率与水泥浆液配比，解决了盘式锚索应用中砂浆成盘或灌浆的不足，确保了锚杆注浆体强度与锚盘支架强度匹配度，提高了加固工程的安全可靠性。
Optimal proportion scheme design of pisolite mortar anchor disc
The invention discloses an optimal matching scheme of a pisolite mortar anchor disc applied to a disc type anchor cable reinforcing structure. A disc type anchor cable is composed of a main reinforcement, a reinforcement support, an upper force bearing disc, a lower force bearing disc, an upper disc and a lower disc. An anchoring agent adopts pea gravel concrete, the optimal proportion of the grouting material and the matching relation between the grouting material and the steel bar support are provided, and a bearing capacity calculation method is established. The diameter of the anchor plate steel strand is 28.6 mm, and the tensile strength is 1860 MPa. 52.5 R-grade Portland cement is selected as a grouting material, and the mass ratio is 1; the particle size of pisolite is 4 mm, and the mass ratio is 0.87; the quartz sand is 325 meshes, and the mass ratio is 1.1; the admixture is a polycarboxylic acid type water reducing agent with the water reducing rate of 25%, and the mass ratio of the admixture to the polycarboxylic acid type water reducing agent is 0.02; the mass ratio of the tap water is 0.3. According to the method, the optimal sand ratio and cement slurry ratio of the ultimate bearing capacity of the anchor disc under the given steel bar support condition is obtained, the defect of mortar disc forming or grouting in disc type anchor cable application is overcome, the matching degree of the anchor rod grouting body strength and the anchor disc support strength is ensured, and the safety and reliability of reinforcement engineering are improved.
本发明开发了一种应用于盘式锚索加固结构的豆石砂浆锚盘最佳配比方案，盘式锚索由主筋、钢筋支架、上下承力盘、上下圆盘构成；锚固剂采用豆石混凝土，提出了注浆材料最优配比及其与钢筋支架的匹配关系，建立了其承载力计算方法。锚盘钢绞线选用直径为28.6mm，抗拉强度1860MPa。注浆体材料选用52.5R级硅酸盐水泥，质量比1；豆石粒径为4mm，质量比为0.87；石英砂325目，质量比为1.1；外加剂选用减水率25％的聚羧酸型减水剂，质量比为0.02；自来水，质量比为0.3。本发明获得锚盘在给定钢筋支架条件下极限承载力的最优砂率与水泥浆液配比，解决了盘式锚索应用中砂浆成盘或灌浆的不足，确保了锚杆注浆体强度与锚盘支架强度匹配度，提高了加固工程的安全可靠性。
Optimal proportion scheme design of pisolite mortar anchor disc
一种豆石砂浆锚盘最佳配比方案设计
SUN XIAOKUN (Autor:in) / XIAO JIAN (Autor:in) / JIN SONGLI (Autor:in) / BAI SHIXIN (Autor:in) / ZHAO XUEFANG (Autor:in) / SUN SHIGUO (Autor:in) / FENG SHAOJIE (Autor:in) / JIA XINXIN (Autor:in) / XIE YUANDONG (Autor:in) / ZHANG YUYAO (Autor:in)
18.10.2022
Patent
Elektronische Ressource
Chinesisch
Optimal proportioning scheme of pisolite mortar steel fiber mixing proportion anchor disc
| Europäisches Patentamt | 2023
Mix proportion design method of modified cement mortar
| Europäisches Patentamt | 2024
Anchor sealing mortar for precast concrete and preparation method of anchor sealing mortar
| Europäisches Patentamt | 2024
Stone powder mortar mix proportion calculation method
| Europäisches Patentamt | 2021