Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optimal proportioning scheme of pisolite mortar steel fiber mixing proportion anchor disc
The invention provides a design scheme for the best strength of a mortar mixing proportion anchor disc for a disc type anchor cable, the disc type anchor cable is composed of a steel strand, a steel bar support, an upper bearing disc, a lower bearing disc, an upper disc and a lower disc, a grouting body is doped with pisolite and steel fiber components, and an optimal mixing proportion scheme suitable for hard rock engineering reinforcement is provided. The invention relates to an anchor disc bearing capacity calculation theory and method. The diameter of a main reinforcement steel strand of the pisolite mortar anchor disc is 28.6 mm, the tensile strength is 1860 MPa, a main rod is PSB1080, and the diameter of the main rod is 32 mm; the raw material of the grouting body is 52.5 R-grade Portland cement, the sand ratio is 37%, and the volume mixing amount of steel fibers is 1%. According to the method, the optimal steel fiber mixing amount and the optimal pisolite ratio of the anchor disc under the maximum ultimate bearing capacity are obtained, the matching degree of the strength of anchor rod grouting and the strength of an anchor disc support is improved, and the safety, the economical efficiency and the stability of medium-soft rock reinforcing engineering are improved.
本发明提出了一种用于盘式锚索的砂浆混合配合比锚盘强度最佳设计方案，盘式锚索由钢绞线、钢筋支架、上下承力盘、上下部圆盘构成，灌浆体掺入豆石和钢纤维成分，并提出了适用于硬岩工程加固最优混合配比方案，以及锚盘承载力计算理论与方法。豆石砂浆锚盘的主筋钢绞线选取直径为28.6mm，抗拉强度1860MPa，主杆为PSB1080，直径为32mm；注浆体原材料选用52.5R级硅酸盐水泥，砂率为37％、钢纤维体积掺量为1％。本发明获得锚盘在最大极限承载力下的最优钢纤维掺量和豆石配比，提高了锚杆注浆体强度与锚盘支架强度匹配度，提高了中软岩加固工程的安全性、经济性和稳定性。
Optimal proportioning scheme of pisolite mortar steel fiber mixing proportion anchor disc
The invention provides a design scheme for the best strength of a mortar mixing proportion anchor disc for a disc type anchor cable, the disc type anchor cable is composed of a steel strand, a steel bar support, an upper bearing disc, a lower bearing disc, an upper disc and a lower disc, a grouting body is doped with pisolite and steel fiber components, and an optimal mixing proportion scheme suitable for hard rock engineering reinforcement is provided. The invention relates to an anchor disc bearing capacity calculation theory and method. The diameter of a main reinforcement steel strand of the pisolite mortar anchor disc is 28.6 mm, the tensile strength is 1860 MPa, a main rod is PSB1080, and the diameter of the main rod is 32 mm; the raw material of the grouting body is 52.5 R-grade Portland cement, the sand ratio is 37%, and the volume mixing amount of steel fibers is 1%. According to the method, the optimal steel fiber mixing amount and the optimal pisolite ratio of the anchor disc under the maximum ultimate bearing capacity are obtained, the matching degree of the strength of anchor rod grouting and the strength of an anchor disc support is improved, and the safety, the economical efficiency and the stability of medium-soft rock reinforcing engineering are improved.
本发明提出了一种用于盘式锚索的砂浆混合配合比锚盘强度最佳设计方案，盘式锚索由钢绞线、钢筋支架、上下承力盘、上下部圆盘构成，灌浆体掺入豆石和钢纤维成分，并提出了适用于硬岩工程加固最优混合配比方案，以及锚盘承载力计算理论与方法。豆石砂浆锚盘的主筋钢绞线选取直径为28.6mm，抗拉强度1860MPa，主杆为PSB1080，直径为32mm；注浆体原材料选用52.5R级硅酸盐水泥，砂率为37％、钢纤维体积掺量为1％。本发明获得锚盘在最大极限承载力下的最优钢纤维掺量和豆石配比，提高了锚杆注浆体强度与锚盘支架强度匹配度，提高了中软岩加固工程的安全性、经济性和稳定性。
Optimal proportioning scheme of pisolite mortar steel fiber mixing proportion anchor disc
一种豆石砂浆钢纤维混合配合比锚盘最佳配比方案
XIAO JIAN (Autor:in) / BAI SHIXIN (Autor:in) / JIN SONGLI (Autor:in) / ZHAO XUEFANG (Autor:in) / SUN XIAOKUN (Autor:in) / SUN SHIGUO (Autor:in) / FENG SHAOJIE (Autor:in) / JIA XINXIN (Autor:in) / XIE YUANDONG (Autor:in) / ZHANG YUYAO (Autor:in)
25.04.2023
Patent
Elektronische Ressource
Chinesisch
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