CN213090606U - Hole digging pile blasting protection device - Google Patents

Abstract

The utility model provides a hole digging pile blasting protection device, includes the armguard, and the fore shaft has been laid at the top of armguard, and a plurality of cushions have been laid to the fore shaft top, and the reinforcing bar net piece has been laid to the cushion top, and a plurality of sand bags have been laid to reinforcing bar net piece top, and the safety cover has been laid to ring fore shaft round, the utility model discloses can slow down the shock wave that hole digging pile blasting produced and prevent falling rocks injury constructor.

Description

Hole digging pile blasting protection device

Technical Field

The utility model belongs to bridge engineering construction field especially relates to a bored pile blasting protection device.

Background

The pile foundation is a lower stressed member with long history, strong bearing capacity and wide application range, and mainly has the function of transmitting all or part of load of an upper structure to a hard bearing layer to prevent the upper structure from settling in a soft soil layer. At present, the pile foundation is excavated by a drilling machine for digging holes and a manual hole digging method, and if the pile foundation meets a hard rock stratum and the depth of the pile foundation does not meet the design requirement in the manual hole digging process, the hard rock stratum needs to be broken by adopting an explosive blasting mode. Because the blasting can produce a large amount of heat and gas, form a violent "shock wave", drive the broken stone newly formed at the bottom of the pile and spray outwards along the pile hole, if deal with improperly, because of spraying the broken stone that falls back is very apt to injure scene constructor and mechanical equipment, cause the engineering accident, increase the construction cost.

In view of the above, a device for preventing the waste of personnel and unnecessary economy due to the huge shock wave generated by the blasting of the bored pile is desired.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the defect among the above-mentioned prior art, provide a hole digging pile blasting protection device who slows down the shock wave and prevents to fall stone injury constructor.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a hole digging pile blasting protection device, includes the armguard, and the fore shaft has been laid at the top of armguard, and a plurality of cushions have been laid to the fore shaft top, and the reinforcing bar net piece has been laid to the cushion top, and a plurality of sand bags have been laid to reinforcing bar net piece top, and the safety cover has been laid to ring fore shaft round.

As a preferred scheme of the utility model, the fore shaft is for pouring circular fore shaft, and the surface of fore shaft is tangent with the surface of cushion, and cushion evenly distributed is on the fore shaft.

As an optimized scheme of the utility model, the reinforcing bar net piece covers the fore shaft, and reinforcing bar net piece interval distribution sand bag.

As an optimized scheme of the utility model, a plurality of jump holes have been laid to safety cover top surface and side, and the safety cover is inside hollow out construction.

As an optimized proposal of the utility model, a plurality of bottom supporting plates are arranged at the bottom of the protective cover.

As an optimal scheme of the utility model, a plurality of welded plates have been laid at safety cover top both ends, and the welded plate is laid along safety cover length direction.

As an optimized proposal of the utility model, 3 welding plates are arranged relatively for a set of.

As the utility model discloses a preferred scheme, lay the steel wire ligature hole on the welded plate, the lifting rope passes the relative welded plate of steel wire ligature jogged joint.

As an optimized proposal of the utility model, the lifting hook is arranged on the lifting rope.

As a preferred scheme of the utility model, the safety cover is rectangle or square structure.

The utility model has the advantages that:

1. the utility model provides a digging pile blasting protection device is equipped with the armguard, can protect the peripheral soil of blasting department not influenced by the shock wave and not polluted by the explosive.

2. The utility model provides a hole digging pile blasting protection device is equipped with reinforcing bar net piece and sand bag, can weaken for the first time by huge energy and gaseous "shock wave" of constituteing.

3. The utility model provides a hole digging pile blasting protection device is equipped with the safety cover, can weaken the "shock wave" of constituteing by huge energy and gas for the second time.

4. The utility model provides a pair of digging hole pile blasting protection device is equipped with the safety cover, and the safety cover adopts the steel material preparation to form, has great gravity, "shock wave" can't be with its jacking, therefore is driven and outside jetted rubble by the shock wave is prevented in the safety cover inboard, avoids the rubble to fall back the loss that causes.

5. The utility model provides a pair of bored pile blasting protection device is equipped with the safety cover, is equipped with the lifting hook on the safety cover, makes things convenient for the removal of safety cover when using.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the assembly structure of the locking notch and the cushion block of the present invention;

fig. 3 is a schematic view of the protective cover structure of the present invention 1;

fig. 4 is a schematic view of the protective cover structure of the present invention 2;

reference numbers in the figures: the steel wire ligature hole 1, the welded plate 2, the jump bit 3, bottom sprag plate 4, safety cover 5, digging hole stake hole 6, armguard 7, fore shaft 8, reinforcing bar net piece 9, cushion 10, sand bag 11, lifting rope 12, lifting hook 13.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

As shown in fig. 1-4, a bored pile explosion protection device comprises a guard arm 7, a locking notch 8 is distributed at the top of the guard arm 7, a plurality of cushion blocks 10 are distributed above the locking notch 8, a reinforcing mesh 9 is distributed above the cushion blocks 10, a plurality of sand bags 11 are distributed above the reinforcing mesh 9, a protective cover 5 is distributed around the locking notch 8, the guard arm 7 is poured on the side surface of a bored pile hole, and the influence of shock waves on the soil around the pile hole is reduced and the soil around the pile hole is protected from being polluted by explosives.

The round locking notch 8 is poured, the inner surface of the locking notch 8 is flush with the inner surface of the guard arm 7, the outer surface of the locking notch 8 is tangent to the outer surface of the cushion block 10, the cushion block 10 is uniformly distributed on the locking notch 8, the guard arm 7, the locking notch 8 and the cushion block 10 are sequentially and orderly arranged, shock waves are guaranteed to be ejected outwards along a pile hole more smoothly, and the damage conditions of the guard arm 7, the locking notch 8 and the cushion block 10 are reduced. The steel bar net piece 9 covers the locking notch 8, the sand bags 11 are arranged above the part, covering the locking notch 8, of the steel bar net piece 9, the sand bags 11 are distributed at intervals on the steel bar net piece 9, and the sand bags 11 loaded in a piling mode guarantee that the steel bar net piece has enough downward applied load.

5 top surfaces of safety cover and side have been laid a plurality of shock holes 3, safety cover 5 is inside hollow out construction, safety cover 5 adopts the steel material preparation to form, great gravity has, the huge shock wave that the blasting produced outwards sprays along the stake hole, this shock wave comprises huge energy and gas, in outside injection process, the outside impact of rubble is moved to the shock wave zone, run into the safety cover in the outside, some shock wave releases to the outside along the shock hole in the safety cover outside, another part shock wave jacking safety cover, because the great gravity of safety cover, shock wave can't be its jacking, therefore driven by the shock wave and outwards sprayed rubble is prevented in the safety cover inboardly.

A plurality of bottom supporting plates 4 are arranged at the bottom of the protective cover 5, and the bottom supporting plates 4 are installed at the bottom of the protective cover 5 by adopting a welding process and play a supporting role. 5 top both ends of safety cover are laid and are equipped with a plurality of welded plate 2, and welded plate 2 is laid along 5 length direction of safety cover, and a plurality of welded plate 2, 3 are a set of relatively laying.

The welding plate 2 is provided with a steel wire binding hole 1, and the lifting rope 12 penetrates through the steel wire binding hole 1 to be connected with the opposite welding plate 2. The lifting rope 12 is provided with a lifting hook 13, so that the protective cover 5 is conveniently suspended above the pile hole by a crane to form the hole digging pile blasting protective device. The protective cover 5 is in a rectangular or square structure, which is beneficial to the manufacture of the protective cover 5 in the early stage.

When the hole digging pile blasting protection device is specifically implemented: the method comprises the steps of firstly embedding explosives in advance, firstly drilling holes at the hole bottoms of the dug piles by using a drilling machine, then loading the explosives by a blaster, and blocking the explosives by using sand and clay mixtures.

And further arranging cushion blocks and a reinforcing mesh piece, symmetrically arranging the four cylindrical cushion blocks at four corners of the pile hole locking opening, and then covering the reinforcing mesh piece above the cushion blocks.

And further arranging sand bags, wherein after the arrangement of the steel mesh is finished, in order to increase the protection effect, the sand bags are arranged on the steel mesh at intervals, the sand bags are used as static load, and the steel mesh is used as first protection to prevent partial broken stones from being sprayed outwards and consume energy brought by partial shock waves.

Further cover the safety cover, utilize the loop wheel machine to remove the safety cover to stake hole top, the safety cover will prevent that the rubble from outwards spraying, avoids causing the unnecessary loss.

Although the reference numerals in the figures are used more here: the steel wire binding hole 1, the welded plate 2, the impact hole 3, the bottom support 4 plate, the protective cover 5, the dug pile hole 6, the protective arm 7, the locking notch 8, the steel mesh 9, the cushion block 10, the sand bag 11, the lifting rope 12, the lifting hook 13 and other terms are used, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides a hole digging pile blasting protection device which characterized in that: the protective device comprises a protective arm (7), a locking notch (8) is distributed at the top of the protective arm (7), a plurality of cushion blocks (10) are distributed above the locking notch (8), a reinforcing steel bar net piece (9) is distributed above the cushion blocks (10), a plurality of sand bags (11) are distributed above the reinforcing steel bar net piece (9), and a protective cover (5) is distributed in a circle around the locking notch (8).

2. The apparatus of claim 1, wherein: the round locking notch (8) is poured, the outer surface of the locking notch (8) is tangent to the outer surface of the cushion block (10), and the cushion block (10) is uniformly distributed on the locking notch (8).

3. A bored pile burst protector as claimed in claim 2, wherein: the locking notch (8) is covered by the steel bar net piece (9), and sand bags (11) are distributed at intervals on the steel bar net piece (9).

4. A dug pile blast protector as claimed in claim 3, wherein: the top surface and the side surface of the protective cover (5) are provided with a plurality of impact holes (3), and the protective cover (5) is of an internal hollow structure.

5. A bored pile burst protector as claimed in claim 4, wherein: and a plurality of bottom supporting plates (4) are distributed at the bottom of the protective cover (5).

6. A dug pile blasting protection device as claimed in claim 5, wherein: a plurality of welding plates (2) are arranged at two ends of the top of the protective cover (5), and the welding plates (2) are arranged along the length direction of the protective cover (5).

7. A dug pile blast protector as claimed in claim 6, wherein: the welding plates (2) are oppositely arranged in a group.

8. A dug pile blast protector as claimed in claim 7, wherein: the steel wire binding holes (1) are distributed in the welding plates (2), and the lifting ropes (12) penetrate through the steel wire binding holes (1) to be connected with the opposite welding plates (2).

9. A dug pile blast protector as set forth in claim 8, wherein: a lifting hook (13) is arranged on the lifting rope (12).

10. The apparatus of claim 1, wherein: the protective cover (5) is of a rectangular or square structure.

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