阅读说明：本技术 应用于桥梁坡面垫墩施工的预应力加固结构 (Prestressed reinforcement structure applied to the construction of bridge slope surface pad pier ) 是由 王明辉 姜华 袁啸 焦伟 于 2019-09-12 设计创作，主要内容包括：本发明属于桥梁施工应用技术领域,具体公开了应用于桥梁坡面垫墩施工的预应力加固结构,包括斜钻孔、混凝土垫墩、钢垫板、预应力锚具、喇叭形套管螺旋筋、排气孔钢管、聚乙烯套管、压浆软管、塑料胶带缠绕、沥青麻丝、一次压浆管、二次压浆管、定位片、箍环、钢绞线、扩张环和导向帽。本发明的应用于桥梁坡面垫墩施工的预应力加固结构的有益效果在于：其设计合理,能对坡面桥墩垫墩进行精准的施工固定,提高了垫墩抗预应力强度,进而保证桥梁桥墩支撑的稳定性,同时便于施工、成本低,实用性强。(The invention belongs to bridge construction applied technical fields, specifically disclose the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier, including inclined borehole, concrete pad pier, billet, prestressed anchor, tubaeform telescoping screw muscle, gas vent steel pipe, polyethylene cannula, mud jacking hose, plastic adhesive tape winding, Bituminous hemp fiber, a madjack pipe, secondary grouting pipe, locating plate, garter spring, steel strand wires, tensioner ring and guiding cap.The beneficial effect of the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier of the invention is: it designs reasonable, accurately construction can be carried out to slope surface bridge pier pad pier to fix, improve the anti-prestress strength of pad pier, and then guarantee the stability of bridge pier support, simultaneously convenient for construction, it is at low cost, it is practical.)

1. being applied to the prestressed reinforcement structure of bridge slope surface pad pier construction, it is characterised in that: including being located at construction and excavation slope surface Interior inclined borehole (7), and it is provided in the concrete pad pier (2) of construction and excavation slope surface, and setting is in concrete pad pier (2) one side Billet (3), prestressed anchor (1), and setting is in the concrete pad pier (2) and the loudspeaker that connect with prestressed anchor (1) Shape telescoping screw muscle (4), and the gas vent steel pipe (5) being arranged in concrete pad pier (2), and be arranged in inclined borehole (7) Polyethylene cannula (6), mud jacking hose (17), wherein gas vent steel pipe (5), mud jacking hose (17) one end respectively with polyethylene Casing (6) contact, and pass through the Bituminous hemp fiber (8) that plastic adhesive tape (9) are wrapped in polyethylene cannula (6) one end, and be arranged oblique Drill a madjack pipe (14) connecting in (7) and with polyethylene cannula (6), secondary grouting pipe (16), and setting is once being pressed Locating plate (10), garter spring (11), steel strand wires (12), the tensioner ring (13) that slurry pipe (14), secondary grouting pipe (16) are used in combination, And setting is in the guiding cap (15) of steel strand wires (12) one end.

2. the prestressed reinforcement structure according to claim 1 applied to the construction of bridge slope surface pad pier, it is characterised in that: institute The diameter dimension for stating gas vent steel pipe (5) is 15mm, and the diameter dimension of polyethylene cannula (6) is 70mm, a madjack pipe (14), The diameter dimension of secondary grouting pipe (16) is respectively 17mm, and the diameter dimension of guiding cap (15) is 50mm.

Technical field

The invention belongs to bridge construction applied technical fields, and in particular to the prestressing force applied to the construction of bridge slope surface pad pier Ruggedized construction.

Background technique

Bridge refers generally to be erected in rivers,lakes and seas, the structures for making traffic etc. that can smoothly pass through.It is modern to adapt to The transportation industry of high speed development, bridge be also extended to across mountain stream, unfavorable geology or meet other traffic need and set up make Current more convenient and fast building.Bridge is generally made of superstructure, substructure, support and attached structure, top knot Structure is also known as bridge span structure, is across the primary structure of obstacle；Substructure includes abutment, bridge pier and basis；Support is spanning knot The load transfer device of the bearing place setting of structure and bridge pier or abutment；Attached structure then refer to transition slab at bridge head, truncated cone banking, shore protection, Training works etc..

In the construction of Bridges in Mountainous Areas, the slope concrete pad pier structure of rational design is particularly important, needs to have good Good prestressing force improves the safety of whole bridge after the completion of construction to guarantee the stability of bridge pier.

Therefore, based on the above issues, the present invention provides the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier.

Summary of the invention

Goal of the invention: the object of the present invention is to provide be applied to bridge slope surface pad pier construction prestressed reinforcement structure, Design rationally, accurately construction can be carried out to slope surface bridge pier pad pier and is fixed, improves the anti-prestress strength of pad pier, and then guarantee bridge Beam bridge pier support stability, while convenient for construction, it is at low cost, it is practical.

Technical solution: the present invention provides the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier, including is located at and applies Work excavates the inclined borehole in slope surface, and is provided in the concrete pad pier of construction and excavation slope surface, and is arranged in concrete pad pier one Billet, the prestressed anchor in face, and the tubaeform telescoping screw for being arranged in concrete pad pier and being connect with prestressed anchor Muscle, and the gas vent steel pipe being arranged in concrete pad pier, and the polyethylene cannula, the mud jacking hose that are arranged in inclined borehole, In, gas vent steel pipe, mud jacking hose one end contacted respectively with polyethylene cannula, and polyethylene jacket is wrapped in by plastic adhesive tape The Bituminous hemp fiber of pipe one end, and the madjack pipe, the secondary grouting pipe that are arranged in inclined borehole and are connect with polyethylene cannula, and Madjack pipe is set, locating plate, garter spring, steel strand wires, the tensioner ring that secondary grouting pipe is used in combination, and setting is twisted in steel The guiding cap of line one end.

The technical program, the diameter dimension of the gas vent steel pipe is 15mm, and the diameter dimension of polyethylene cannula is 70mm, a madjack pipe, secondary grouting pipe diameter dimension be respectively 17mm, the diameter dimension of guiding cap is 50mm.

Compared with prior art, the beneficial effect of the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier of the invention Fruit is: it is designed rationally, and accurately construction can be carried out to slope surface bridge pier pad pier and is fixed, the anti-prestress strength of pad pier is improved, And then guarantee bridge pier support stability, while convenient for construction, it is at low cost, it is practical.

Detailed description of the invention

Fig. 1 is the planar structure schematic diagram of the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier of the invention；

Fig. 2 is that the part of A-A, B-B, C-C of the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier of the invention are put Big structure schematic diagram；

Fig. 3 is the structural schematic diagram of the tensioner ring of the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier of the invention；

Fig. 4 is the concrete pad pier of the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier of the invention, gas vent steel The structural schematic diagram of pipe, mud jacking hose；

Fig. 5 is the structure of the steel strand wires of the prestressed reinforcement structure for being applied to the construction of bridge slope surface pad pier of the invention, guiding cap Schematic diagram.

Specific embodiment

In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated.