The water proof structure of shield tunnel anti-float anchor rod node
Technical field
The utility model relates to a kind of water proof structure of underground construction, relates in particular to a kind of water proof structure of shield tunnel anti-float anchor rod node.
Background technology
Along with scientific technological advance, a kind of shallow embedding shield tunnel engineering method has obtained more deep research and application at home and abroad.The shallow embedding shield tunnel is more shallow because of its buried depth, and overburden layer is thin, so the anti-floating problem is just more outstanding.In operational phase, the measure of anti float of shallow embedding shield tunnel adopts the anchor pole anti-floating more, yet there is no good solution for the waterproof problem of anchor pole anti-floating node.
Chinese patent CN200820187592.2 improves the original anti-floating node of common underground structure, proposes combined type anti-float anchor rod node waterproof structure.But shallow embedding shield tunnel structure is assembled by prefabricated pipe section, and above-mentioned utility model can not directly be suitable for.
Therefore, those skilled in the art is devoted to develop a kind of water proof structure of new shield tunnel anti-float anchor rod node, satisfies the waterproof demand of shallow embedding shield tunnel anti-float anchor rod node.
The utility model content
Be different from prior art, technical problem to be solved in the utility model provides a kind of water proof structure that satisfies the shield tunnel anti-float anchor rod node of shallow embedding shield tunnel anti-float anchor rod node waterproof demand.
For achieving the above object, the utility model provides a kind of water proof structure of shield tunnel anti-float anchor rod node, comprises the steel tube body and the sealing steel loop that is arranged on described steel tube body lateral surface of built-in Seal end plate, offers bolthole on the described Seal end plate; It is inner that described Seal end plate welded seal is arranged on described steel tube body; Be located in anchor pole and described Seal end plate welded seal in the described bolthole.
More excellent, described steel tube body comprises the first steel pipe and second steel pipe of coaxial setting, and the diameter of described the second steel pipe is greater than the diameter of described the first steel pipe, and an end of described the second steel pipe is welded and fixed by an end that connects steel loop and described the first steel pipe.
More excellent, described connection steel loop is double does described Seal end plate.
More excellent, described sealing steel loop is arranged on described the first steel pipe.
More excellent, described water proof structure also comprises the dowel that is arranged on described steel tube body lateral surface.
More excellent, described dowel is three, is evenly arranged on the same circumference of described steel tube body lateral surface.
The beneficial effects of the utility model:
The water proof structure of shield tunnel anti-float anchor rod node of the present utility model, simple in structure, easy to operate, satisfy the waterproof demand of shield tunnel anti-float anchor rod node, and no matter be to produce or anchor bolt construction in the section of jurisdiction, the more existing water-tight device of described water proof structure is simple to operate and waterproof effect is good.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand fully the purpose of this utility model, feature and effect.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is A-A place sectional structure schematic diagram among Fig. 1.
Fig. 3 is use view embodiment illustrated in fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, water proof structure one specific embodiment of shield tunnel anti-float anchor rod node of the present utility model, described water proof structure comprises the steel tube body of built-in Seal end plate 9 and is arranged on the sealing steel loop 6 of steel tube body lateral surface, offers bolthole on the Seal end plate 9.
The specific embodiment as the present embodiment, above-mentioned steel tube body comprises the first steel pipe 4 and second steel pipe 1 of coaxial setting, the diameter of the second steel pipe 1 is greater than the diameter of the first steel pipe 4, one end of the second steel pipe 1 is welded and fixed by an end that connects steel loop 2 and the first steel pipe 4, Seal end plate 9 is weldingly fixed on and connects on the steel loop 2, wherein, the bolthole of presetting on the Seal end plate 9 can carry out welded seal with anchor pole to be fixed; Sealing steel loop 6 is arranged on the first steel pipe 4; Described water proof structure also comprises three dowels 5 that evenly are arranged on the same circumference of the first steel pipe 4 lateral surfaces.
Exemplary, as shown in Figure 3, the water proof structure of a kind of shield tunnel anti-float anchor rod node of this specific embodiment is to be applied in like this on the shield tunnel anti-float anchor rod node:
At first, when pour into a mould the section of jurisdiction 8 in tunnel, with the steel tube body of water proof structure together with in the pre-buried section of jurisdiction 8 that is arranged on shield tunnel of the sealing steel loop 6 of peripheral hardware and dowel 5.
Then, the present embodiment is located in anchor pole 3 in the pre-buried steel tube body first when using, and Seal end plate 9 is set on the anchor pole 3 again, and the part of anchor pole 3 is stretched out from bolthole.
At last, Seal end plate 9 is successively carried out the boxing sealing with steel tube body, anchor pole 3 respectively fix, so far finish the application operating of the present embodiment.
In engineering practice, underground water can up permeate by the anti-float anchor rod node, adopt the utility model, moisture in the steel tube body outside can suffer from the prevention of sealing steel loop 6, can suffer from the prevention of Seal end plate 9 at the moisture of steel tube body inboard, thereby satisfy the waterproof demand of shield tunnel anti-float anchor rod node.
In other specific embodiment, connect steel loop 2 and can also doublely do Seal end plate 9.
Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all in the art technician comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.