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Prestress anchor rod combined excavation composite foundation and construction method thereof
The invention discloses a prestress anchor rod combined excavation composite foundation and a construction method thereof, and relates to the technical field of power transmission tower foundations. The prestress anchor rod combined excavation composite foundation comprises an excavation foundation and a prestress anchor rod foundation, the excavation foundation is located in a soil layer I, and the excavation foundation is composed of excavation foundation concrete and excavation foundation reinforcing bars; the prestress anchor rod foundation is located in a rock stratum II and comprises a plurality of prestress anchor rods, each prestress anchor rod comprises anchoring section concrete or cement mortar and a prestress anchor bar, the upper end of each prestress anchor bar extends into the excavation foundation to form a prestress anchor bar free section, and each prestress anchor bar free section is sleeved with an isolation sleeve; and anchor heads, anchor bearing plates and anchorhead reinforcing ribs are arranged at the upper ends of the prestress anchor bar free sections. The prestress anchor rod combined excavation composite foundation is large in rigidity, small in deformation, simple in construction method, easy to operate and capable of well meeting the requirement for environmental protection.
本发明公开了一种预应力锚杆联合掏挖复合基础及其施工方法,涉及输电塔基础技术领域,包括挖陶基础和预应力锚杆基础,所述挖陶基础位于土层Ⅰ中,所述挖陶基础由掏挖基础混凝土和掏挖基础配筋组成,所述预应力锚杆基础位于岩层Ⅱ中,包括若干预应力锚杆,所述预应力锚杆包括锚固段混凝土或水泥砂浆和预应力锚筋,所述预应力锚筋上端部伸入挖陶基础中构成预应力锚筋自由段,所述预应力锚筋自由段套设有隔离套管,所述预应力锚筋自由段上端部设置有锚头、锚垫板和锚头加强筋,本发明刚度大、变形小,施工方法简单、易操作,能够很好地满足环保性要求。
Prestress anchor rod combined excavation composite foundation and construction method thereof
The invention discloses a prestress anchor rod combined excavation composite foundation and a construction method thereof, and relates to the technical field of power transmission tower foundations. The prestress anchor rod combined excavation composite foundation comprises an excavation foundation and a prestress anchor rod foundation, the excavation foundation is located in a soil layer I, and the excavation foundation is composed of excavation foundation concrete and excavation foundation reinforcing bars; the prestress anchor rod foundation is located in a rock stratum II and comprises a plurality of prestress anchor rods, each prestress anchor rod comprises anchoring section concrete or cement mortar and a prestress anchor bar, the upper end of each prestress anchor bar extends into the excavation foundation to form a prestress anchor bar free section, and each prestress anchor bar free section is sleeved with an isolation sleeve; and anchor heads, anchor bearing plates and anchorhead reinforcing ribs are arranged at the upper ends of the prestress anchor bar free sections. The prestress anchor rod combined excavation composite foundation is large in rigidity, small in deformation, simple in construction method, easy to operate and capable of well meeting the requirement for environmental protection.
本发明公开了一种预应力锚杆联合掏挖复合基础及其施工方法,涉及输电塔基础技术领域,包括挖陶基础和预应力锚杆基础,所述挖陶基础位于土层Ⅰ中,所述挖陶基础由掏挖基础混凝土和掏挖基础配筋组成,所述预应力锚杆基础位于岩层Ⅱ中,包括若干预应力锚杆,所述预应力锚杆包括锚固段混凝土或水泥砂浆和预应力锚筋,所述预应力锚筋上端部伸入挖陶基础中构成预应力锚筋自由段,所述预应力锚筋自由段套设有隔离套管,所述预应力锚筋自由段上端部设置有锚头、锚垫板和锚头加强筋,本发明刚度大、变形小,施工方法简单、易操作,能够很好地满足环保性要求。
Prestress anchor rod combined excavation composite foundation and construction method thereof
一种预应力锚杆联合掏挖复合基础及其施工方法
MAO LIRONG (author) / WU JIANYONG (author) / WU QUNXIONG (author) / LIN HE (author) / ZHENG ZHONG'AN (author) / SU JUNFENG (author) / LI XIAOJUN (author) / CAO XIXIANG (author) / QIU XIAOPING (author) / YE JICHAO (author)
2020-11-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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