A kind of concrete anchor rod and construction technology thereof
Technical field
The present invention relates to the building unit production industry, is a kind of anti-floating power anchor pole and construction technology thereof specifically.
Background technology
The present stage anti-floating stake of home and abroad building is reinforced concrete member, and amount of reinforcement is bigger, the cost height; Under the high environment of water level, antirust, anticorrosion difficulty is big, and construction quality should not be controlled; Construct simultaneously loaded down with trivial details, when taking a lot of work.If adopt anchor pole, because of bolt diameter is little, stretching resistance is low.
Summary of the invention
The objective of the invention is to build the problem that exists at above-mentioned member, a kind of concrete anchor rod and construction technology thereof have been researched and developed, it be with the anchor pole skeleton after the concrete anchor solid pours into into armature boring, adopt conduit to insert in the anchoring body, reach the effect that construction technology is simple, component quality good, cost is low.
A kind of concrete anchor rod is to be made of each parts of steel strand, anchor head, form anchor, anchoring body and anti-slip tank, it is characterized in that:
A) steel strand are installed on the form anchor, and form anchor is installed on the taper anchor head;
B) the concrete anchor solid by design height be poured in steel strand and anchor head around.
Described construction technology is:
A) earlier steel strand are fixedly mounted on the form anchor, then, form anchor and taper anchor head are assembled into whole anchor pole skeleton;
B) in the armature boring that pre-subdrilling is finished, by designing requirement height concrete perfusion anchoring body;
C) lower end of inserting conduit is inserted in the anti-slip tank, after the other end of conduit is installed the steel strand guider, before concrete initial set is solid, is utilized the pressure of conduit that the anchor pole skeleton is inserted in the concrete, and make taper anchor head tip be in the bottom surface of design height;
D) take off guider, pull out and insert conduit, whole construction technology promptly finishes.
The centre of form anchor is provided with the anti-slip tank of inserting conduit; Concrete anchor solid diameter is 200-800mm, and maximum gauge is 2000mm; The taper anchor head adopts the steel plate welding to make, and perhaps adopts concrete prefabricated forming; The hard-wired taper of anchor head and form anchor bottom surface is rounded, perhaps is square, and perhaps is polygonal shape; Form anchor is rounded, perhaps is square, and perhaps is polygonal shape.
Good effect of the present invention is: (1) anchoring body diameter is big, and general anchor rod anchored body diameter is 80-150mm, and the present invention is generally 200-800mm, and maximum gauge can reach 2000mm, and higher axis force of anchor can be provided; (2) traditional anchor rod anchored body is the cement mortar material, easily cracks; Join cage shape reinforcing bar in the anti-floating stake; And anchoring body of the present invention is a concrete material, no-reinforcing-bar, the no bonding steel strand skin of employing is provided with the plastic cement integument, long service life, quality height, against corrosion, antirust, cost is low, initial estimate can reduce cost and reach 20%; (3) high strength does not have the anchor pole skeleton that bonding steel strand constitute and adopts perfusion anchoring body earlier, and postposition is gone into the method for skeleton, the generation of the inwall cave-in accident of can avoiding holing, and constructing operation is also simpler.
Description of drawings
Fig. 1, overall structure schematic diagram of the present invention;
Fig. 2, structure partial sectional view of the present invention;
Fig. 3, entity schematic diagram of the present invention.
Wherein: 1 anchor head, 2 form anchors, 3 anchoring bodys, 4 ground, 5 conduits, 6 guiders, 7 steel strand, 8 anti-slip tanks.
The specific embodiment
Further describe as follows to content of the present invention in conjunction with the accompanying drawings:
Embodiment 1
The production degree of depth is the anchor pole (as shown in Figure 1, 2) of 6m.3 high strength not being had bonding steel strand 7 be installed on the steel form anchor 2, and with riveting component steel strand 7 are reinforced on form anchor 2, is the steel diameter that the circular form anchor 2 of 180mm is fastened on the taper anchor head 1 again, and taper anchor head bottom surface diameter is similarly 180mm; The diameter of finishing in pre-subdrilling is in the boring of 200mm, concrete perfusion anchoring body 3, and the degree of depth should reach 6m by designing requirement; Afterwards, before concrete anchor solid 3 just solidifies, adopt steel to insert conduit 5 the anchor pole skeleton is inserted foot of hole, the anti-slip tank 8 of form anchor 2 will be aimed in the bottom of conduit 5, upper end should be installed steel strand guider 6, the taper anchor head that the front end of anchor pole is provided with can reach foot of hole smoothly under the promotion of conduit 5; Guider 6 can guarantee to make steel strand be in design attitude; Afterwards, take off guider 6, propose conduit 5, whole construction is promptly finished.
Embodiment 2
Produce 10m degree of depth anchor pole.The anchor member section is square, and every length of side 400mm does not have bonding steel strand and is made as 4, and taper anchor head bottom surface also is square, and every length of side is similarly 380mm, and anchor head is made with the steel plate weld all around; Form anchor 8 also is square, every length of side 380mm; Perhaps be designed to polygonized structure.Other structures and job practices are all identical with embodiment 1.
Embodiment 3
Produce the anchor rod construction method of diameter 2m.Earlier the bolthole construction is finished, diameter is 2m, degree of depth 15m; 15 no bonding steel strand of rivet clasp on form anchor, and be tightened to integral body with connector and concrete prefabricated taper anchor head, then, can import in the bolthole.Other structures and construction technology are all identical with embodiment 1.