CN219386279U - Highway subgrade rubble stake - Google Patents

Abstract

The utility model relates to the field of gravel piles, in particular to a highway subgrade gravel pile. Its technical scheme includes the bottom plate, and the top fixed mounting of bottom plate has the steel pipe, and the top fixed mounting of bottom plate has a plurality of reinforcing bars, and the common fixed mounting in top of a plurality of reinforcing bars has the clamp plate, and fixed mounting has a plurality of link on the outer wall of steel pipe, and every reinforcing bar all with assorted link fixed connection, the bottom of bottom plate has laid the bedding gravel layer, has pour the gravel layer between the upper surface of bottom plate and the lower surface of clamp plate. The utility model has the beneficial effects that: the reinforced bar frame is formed by reinforcing steel bars, steel pipes and connecting frames, the structural strength of the gravel pile is improved, accumulated water at the bottom of the embedded pit is pumped away from the steel pipes in the casting process of the gravel pile, the accumulated water level in the embedded pit is prevented from continuously rising, the soaking of broken stone and cement slurry can be reduced, the cementing effect of the cement slurry is ensured, broken stone is prevented from falling off, and the durability of the gravel pile is effectively improved.

Description

Highway subgrade rubble stake

Technical Field

The utility model relates to the field of gravel piles, in particular to a highway subgrade gravel pile.

Background

The gravel pile is a composite foundation reinforcement pile made of gravel as a main material. The small-sized bored pile structure produced by cementing broken stone and cement slurry in the construction process is suitable for the treatment of soft soil layer foundations such as mucky soil, silty sand and the like. The gravel pile can be placed in the pre-buried pit firstly in the pouring process, then the gravel and the cement paste are poured into the pre-buried pit, after the cement paste is solidified, the gravel and the reinforcement pile can be firmly connected into a whole, and the structural strength of the gravel pile is guaranteed.

In the actual pouring process of the traditional highway subgrade gravel pile, most of the traditional highway subgrade gravel pile adopts a steel bar frame with a simple structure as a supporting piece, so that the structural strength of the gravel pile can be ensured. However, in the casting process of the gravel pile, a large amount of accumulated water is generated in the embedded pit, the water level of the embedded pit is increased due to the increase of the accumulated water in the traditional casting mode, broken stone and cement slurry are completely soaked in the accumulated water in the water level increasing process, if the accumulated water cannot be timely pumped out from the bottom of the embedded pit, the cementing effect of the cement slurry can be affected, the broken stone is difficult to firmly bond together, and the durability of the gravel pile is greatly reduced; in view of this, we propose a highway subgrade gravel pile that can timely draw away ponding from the bottom of the pre-buried pit and thereby improve the durability of the gravel pile.

Disclosure of Invention

Aiming at the problems in the background technology, the utility model provides the highway subgrade gravel pile which can timely pump accumulated water away from the bottom of the embedded pit and improve the durability of the gravel pile.

The technical scheme of the utility model is as follows: the utility model provides a highway subgrade gravel pile, includes the bottom plate, the top fixed mounting of bottom plate has the steel pipe, the top fixed mounting of bottom plate has a plurality of reinforcement bars, and is a plurality of the reinforcement bars is annular distribution around the steel pipe, a plurality of the common fixed mounting in top of reinforcement bar has the clamp plate, the top of steel pipe passes the clamp plate and rather than swing joint, fixed mounting has a plurality of link on the outer wall of steel pipe, every reinforcement bar all with assorted link fixed connection, the bedding gravel layer has been laid to the bottom of bottom plate, pour the gravel layer between the upper surface of bottom plate and the lower surface of clamp plate.

Preferably, the bottom fixed mounting of bottom plate has a plurality of inserted bars, every inserted bar all inserts in the bedding stone layer, after inserted bar inserts the bedding stone layer inside, can let the bottom plate more stable install in pre-buried hole bottom.

Preferably, a plurality of water seepage holes are cut on the bottom plate, a plurality of water seepage holes are cut on the pipe wall of the steel pipe close to one end of the bottom plate, and accumulated water at the bottom in the embedded pit enters the steel pipe after passing through the water seepage holes and the water seepage holes, so that the accumulated water is conveniently pumped out of the steel pipe.

Preferably, a plurality of pouring openings are cut on the pressing plate, the pouring openings are annularly distributed around the steel pipe, and a mixture of broken stone and cement paste is poured into the embedded pit from the pouring openings, so that the mixture can be ensured to be filled in the embedded pit.

Preferably, the annular supporting plate is fixedly arranged on the outer wall of the pressing plate, which is close to one end of the pressing plate, the lower surface of the pressing plate is fixedly connected with the upper surface of the annular supporting plate, supporting force is provided for the pressing plate through the annular supporting plate, and deformation of the part of the pressing plate, which is close to the steel pipe, can be prevented when the pressing plate is pressed down.

Preferably, each connecting frame comprises a first lantern ring, each first lantern ring is fixed on the outer wall of a steel pipe, each connecting steel bar is fixedly installed on the outer wall of the first lantern ring, each connecting steel bar is far away from one end of the first lantern ring and is fixedly installed with a second lantern ring, each second lantern ring is fixed on the outer wall of a matched reinforcing steel bar, the reinforcing steel bar is ensured to be firmly connected with the steel pipe into a whole, and the reinforcing steel bar can be conveniently placed in an embedded pit.

Preferably, every consolidate reinforcing bar, first lantern ring, connecting bar and second lantern ring all cladding are pouring the rubble layer inside, and a plurality of the link is the equidistance and distributes in pouring the rubble layer, and the reinforcing bar frame of constituteing by consolidate reinforcing bar, steel pipe and link can form the support to the rubble stake, improves its structural strength.

Compared with the prior art, the utility model has the following beneficial technical effects: the reinforced bar frame is formed by reinforcing steel bars, steel pipes and connecting frames, the structural strength of the gravel pile can be improved, accumulated water at the bottom of the embedded pit can be pumped away from the steel pipes in the casting process of the gravel pile, the accumulated water level in the embedded pit can be prevented from continuously rising, the soaking of broken stone and cement slurry can be reduced, the cementing effect of the cement slurry is ensured, broken stone is prevented from falling off, and the durability of the gravel pile is effectively improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the connection of the base plate, reinforcing bars and the pressure plate according to the present utility model;

FIG. 3 is a schematic view of the structure of the steel pipe of the present utility model;

fig. 4 is a schematic view of a structure of a connecting frame according to the present utility model.

Reference numerals: 1. a bottom plate; 11. inserting a drill rod; 12. water seepage holes; 2. reinforcing steel bars; 3. a pressing plate; 31. pouring the port; 4. a steel pipe; 41. a water inlet hole; 42. an annular supporting plate; 5. a connecting frame; 51. a first collar; 52. connecting steel bars; 53. a second collar; 6. pouring the crushed stone layer; 7. and paving the crushed stone layer.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Examples

As shown in fig. 1-4, the highway subgrade gravel pile provided by the utility model comprises a bottom plate 1, wherein a steel pipe 4 is welded on the upper surface of the bottom plate 1, a plurality of annular reinforcing steel bars 2 are arranged around the steel pipe 4, the bottom end of each reinforcing steel bar 2 is welded with the bottom plate 1, a pressing plate 3 is welded on the top ends of the reinforcing steel bars 2 together, the top ends of the steel pipes 4 penetrate through the pressing plate 3 and are movably connected with the pressing plate 3, a plurality of connecting frames 5 are welded on the steel pipe 4 and the reinforcing steel bars 2 together, a bedding gravel layer 7 is paved below the bottom plate 1 and at the inner bottom of an embedded pit, a pouring gravel layer 6 is poured at the position between the bottom plate 1 and the pressing plate 3, after the paving gravel layer 7 is solidified, the bottom plate 1 is firmly connected with the reinforcing steel bars, the reinforcing steel bars consisting of the bottom plate 1, the reinforcing steel bars 2, the pressing plates 3 and 4 and the connecting frames 5 can be stably placed in the embedded pit, after the pouring gravel layer 6 is solidified, the inside of the reinforcing steel bars is supported by the reinforcing steel bars, and the structural strength of the gravel pile can be improved; the bottom plate 1 is provided with a plurality of water seepage holes 12, the pipe wall at the bottom end of the steel pipe 4 is provided with a plurality of water seepage holes 41, after the water accumulation at the bottom in the embedded pit passes through the water seepage holes 12 and the water seepage holes 41, the water seepage holes can be filled into the steel pipe 4, workers can insert the water pumping hose into the steel pipe 4, the water accumulation in the steel pipe 4 is conveniently pumped away, the water accumulation at the bottom in the embedded pit is timely pumped away, the water accumulation soaking amount of a mixture of broken stones and cement paste can be reduced, and the cementing effect of the cement paste is ensured.

Further, each connecting frame 5 is composed of a first collar 51 and a plurality of second collars 53 annularly distributed around the first collar 51, the first collars 51 are welded on the outer wall of the steel pipe 4, the second collars 53 are welded on the outer wall of the reinforcing steel bar 2, and connecting steel bars 52 are welded between the first collars 51 and the second collars 53, so that the reinforcing steel bar 2 and the steel pipe 4 can be firmly connected into a whole, and the structural strength of the steel bar frame is improved.

Furthermore, a plurality of pouring openings 31 are drilled on the pressing plate 3, and a mixture of broken stone and cement paste is poured into the pre-buried pit from the pouring openings 31, so that the broken stone and the cement paste can be conveniently poured into a space between the pressing plate 3 and the bottom plate 1; the lower surface of the bottom plate 1 is welded with the insert pin 11, the insert pin 11 is inserted into the bedding gravel layer 7 before the bedding gravel layer 7 is not solidified and formed, and after the bedding gravel layer 7 is solidified and formed, the insert pin 11 can be firmly connected with the insert pin into a whole, so that the bottom plate 1 can be stably placed at the bottom of the embedded pit, and the stability of the steel bar frame after being installed is improved; the annular supporting plate 42 is welded on the outer wall of the steel pipe 4, the annular supporting plate 42 can provide stable support for the pressing plate 3, the pressing steel bar frame is required to be pressed down to ensure firm embedding in the embedded pit in the installation process of the steel bar frame, the pressing plate 3 is used as a pressed surface at the moment and can bear huge pressure, and the pressing plate 3 can be prevented from deforming near the part of the steel pipe 4 under the support of the annular supporting plate 42.

In this embodiment, a layer of bedding gravel layer 7 is poured at the inner bottom of the pre-buried pit, before the bedding gravel layer 7 is not cured, a steel bar frame is placed in the pre-buried pit, downward pressure is applied to the steel bar frame, after the drill rod 11 is completely inserted into the bedding gravel layer 7, the bedding gravel layer 7 is waited for curing and forming, and after the bedding gravel layer 7 is cured and formed, the bottom plate 1 can be firmly connected with the bottom plate into a whole, so that the steel bar frame can be stably installed in the pre-buried pit; injecting a mixture of broken stone and cement paste into the pre-buried pit from the pouring opening 31, and forming the mixture in a solidifying way in a region between the pressing plate 3 and the bottom plate 1 to form a broken stone pile with a firm structure with the steel bar frame; in this in-process, can produce a large amount of ponding in the pre-buried hole, if untimely handles ponding, can lead to the rubble and the mixture that grout is constituteed to be soaked by ponding, so can insert in the steel pipe 4 with the hose, after ponding gets into inside the steel pipe 4, can in time take away ponding by outside water pump, avoid grout to soak in ponding for a long time to influence its cementation effect, ensure that the rubble can be firm cementation together, after the rubble pile shaping, can reduce the probability that the rubble drops from the rubble pile main part, effectively improved the durability of rubble pile.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (7)

1. Highway subgrade gravel pile, including bottom plate (1), its characterized in that: the top fixed mounting of bottom plate (1) has steel pipe (4), the top fixed mounting of bottom plate (1) has a plurality of reinforcement bars (2), and is a plurality of reinforcement bars (2) are cyclic annular distribution around steel pipe (4), a plurality of the top of reinforcement bars (2) is fixed mounting jointly has clamp plate (3), clamp plate (3) and rather than swing joint are passed on the top of steel pipe (4), fixed mounting has a plurality of link (5) on the outer wall of steel pipe (4), every reinforcement bars (2) all with assorted link (5) fixed connection, mattress gravel layer (7) have been laid to the bottom of bottom plate (1), pour gravel layer (6) between the upper surface of bottom plate (1) and the lower surface of clamp plate (3).

2. A highway subgrade gravel pile according to claim 1, characterized in that the bottom end of the base plate (1) is fixedly provided with a plurality of drill pins (11), each drill pin (11) being inserted into the bedding gravel layer (7).

3. The highway subgrade gravel pile according to claim 1, wherein a plurality of water seepage holes (12) are cut in the bottom plate (1), and a plurality of water inlet holes (41) are cut in the pipe wall of the steel pipe (4) close to one end of the bottom plate (1).

4. A highway subgrade gravel pile according to claim 1, characterized in that said pressure plate (3) is perforated with a number of pouring openings (31), said pouring openings (31) being annularly distributed around the steel pipe (4).

5. The highway subgrade gravel pile according to claim 1, characterized in that an annular supporting plate (42) is fixedly installed on the outer wall of one end of the pressing plate (3) close to the pressing plate (3), and the lower surface of the pressing plate (3) is fixedly connected with the upper surface of the annular supporting plate (42).

6. A highway subgrade gravel pile according to claim 1, characterized in that each of said connection frames (5) comprises a first collar (51), each of said first collars (51) is fixed to the outer wall of the steel pipe (4), each of said first collars (51) has a connection bar (52) fixedly mounted to the outer wall thereof, each of said connection bars (52) has a second collar (53) fixedly mounted to the end thereof remote from the first collar (51), and each of said second collars (53) is fixed to the outer wall of the matched reinforcing bar (2).

7. The highway subgrade gravel pile according to claim 6, characterized in that each reinforcing steel bar (2), the first collar (51), the connecting steel bars (52) and the second collar (53) are all coated inside a casting gravel layer (6), and a plurality of connecting frames (5) are equidistantly distributed inside the casting gravel layer (6).