CN212714918U

CN212714918U - Deviation rock isolated stone bored concrete pile rectifying system

Info

Publication number: CN212714918U
Application number: CN202021214899.4U
Authority: CN
Inventors: 王新泉; 崔允亮; 刁红国
Original assignee: Zhejiang University City College ZUCC
Current assignee: Zhejiang University City College ZUCC
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-16
Anticipated expiration: 2030-06-28

Abstract

The utility model relates to a deviation correcting system for a rock deviation isolated stone bored concrete pile, which comprises a rock deviation, a steel casing, a limiting rod, a static breaker, concrete, a pile hole, a PVC pipe, a reinforcing ring, a drill hole, a lifting rope, a rock surface and a back cover; drilling holes are drilled on the deviated rocks around the inner side of the pile hole through a core drilling machine, a limiting rod is installed in each drilling hole and anchored in each drilling hole through a mortar anchoring body, the limiting rod is higher than the inclined rock surface by a certain distance, and concrete is filled in the rock surface; the steel casing is sleeved outside the limiting rod, and reinforcing rings at equal intervals are arranged on the inner wall of the steel casing according to the hole depth; drilling holes are drilled in the deviated rocks in the pile holes through a core drilling machine, a PVC pipe is arranged in each drilling hole, a sealing bottom is arranged at the bottom of the PVC pipe, and a static crushing agent is filled in the PVC pipe. The utility model has the advantages that: the utility model discloses a set up the gag lever post on inclined to one side rock and can prevent to protect a section of thick bamboo incline, can be restricted by the gag lever post when the drill bit launches the incline and influences the steel and protect a section of thick bamboo to improve the straightness that hangs down in stake hole.

Description

Deviation rock isolated stone bored concrete pile rectifying system

Technical Field

The utility model relates to a bored concrete pile construction technical field, concretely relates to isolated rock bored concrete pile deviation correcting system partially.

Background

When the percussion drill of the cast-in-situ bored pile for the boulder geology is constructed, the percussion drill bit is easy to be ejected and deflected due to the deflection of the rock surface, so that the drill hole is deflected; after measurement, the inclination of the drilled hole can not meet the requirement, then high-strength rubbles are thrown and filled, and the impact drill is used for repeatedly impacting and rectifying deviation. The prior art has the defects that (1) for the deviated hole with low rock formation strength in the drilled hole, the rubble is thrown and filled, the deviation can be corrected by repeatedly impacting with an impact drill, but the progress is slow, a large amount of high-strength rubbles are needed, and the cost is high; (2) for deviated holes with high rock stratum strength in the drilled holes, rubbles are thrown and filled, repeated impact correction effect is not obvious by using an impact drill, progress cannot be guaranteed, quality cannot be guaranteed, and labor disputes are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming not enough among the prior art, providing a solitary rock bored concrete pile rectifying system of inclined to one side, not only can prevent to protect a section of thick bamboo incline, resilience incline phenomenon when still can the drilling of effective control drill bit, it is better to the desire of rock mass split and not hard up effect moreover.

The deviation rectifying system for the rock deviation isolated rock bored pile comprises a rock deviation, a steel casing, a limiting rod, a static crushing agent, concrete, a pile hole, a PVC pipe, a reinforcing ring, a drilled hole, a lifting rope, a rock surface and a back cover; drilling holes are drilled on the deviated rocks around the inner side of the pile hole through a core drilling machine, a limiting rod is installed in each drilling hole and anchored in each drilling hole through a mortar anchoring body, the limiting rod is higher than the inclined rock surface by a certain distance, and concrete is filled in the rock surface; the steel casing is sleeved outside the limiting rod, and reinforcing rings at equal intervals are arranged on the inner wall of the steel casing according to the hole depth; drilling holes are drilled in the deviated rocks in the pile holes through a core drilling machine, a PVC pipe is arranged in each drilling hole, a sealing bottom is arranged at the bottom of the PVC pipe, a static crushing agent is filled in the PVC pipe, and a lifting rope is arranged on each sealing bottom and extends out of the PVC pipe to the ground.

Preferably, the method comprises the following steps: the drill holes of the limiting rod are uniformly distributed along the inner side of the pile hole for one circle, and the bottoms of the drill holes are flush.

Preferably, the method comprises the following steps: the boreholes for the static breaker are distributed radially and the borehole bottoms are flush.

Preferably, the method comprises the following steps: the limiting rods are uniformly distributed along the inner side of the pile hole in one circle, 6-8 limiting rods are arranged in each pile hole, the top ends and the bottom ends of all the limiting rods are flush, and the top ends of the limiting rods are higher than the top surface of the concrete.

Preferably, the method comprises the following steps: the limiting rod is made of a steel bar.

Preferably, the method comprises the following steps: the top of the limiting rod is connected with a lifting rope.

The utility model has the advantages that:

1. the utility model discloses a set up the gag lever post on inclined to one side rock and can prevent to protect a section of thick bamboo incline, can be restricted by the gag lever post when the drill bit launches the incline and influences the steel and protect a section of thick bamboo to improve the straightness that hangs down in stake hole.

2. The gag lever post is evenly arranged and through the anchoring of mortar anchor body in the rock, stability and intensity are higher.

3. Drilling holes in the deviated rocks, setting a static breaker, pouring concrete, sealing the static breaker by the backfilled concrete above the deviated rocks, damaging partial rocks of the deviated rocks by the expansion pressure of the static breaker, performing pre-splitting and loosening effects on the rocks, reducing the strength of the deviated rocks during impact drilling, and preventing the drill bit from ejecting and deviating.

4. The strength of the backfilling concrete above the deviated rocks is closer to that of the rocks, and the drilled holes can be better stressed uniformly compared with the traditional backfilling rubbles.

5. The top of the limiting rod and the sealed bottom of the PVC pipe are connected with a lifting rope, so that the limiting rod can be lifted and removed for recycling after the partial rock drilling is completed.

6. The reinforcing ring arranged in the steel casing can avoid the damage of the steel casing caused by uneven stress when the steel casing is erected to a rock surface.

Drawings

FIG. 1 is a schematic structural diagram of a deviation correcting system for a rock deviation isolated rock bored concrete pile;

FIG. 2 is a schematic plan view of a position-limiting rod and a static breaker;

FIG. 3 is a schematic view of a PVC pipe, static breaker, lifting rope and back cover.

Description of reference numerals: the device comprises a partial rock 1, a steel casing 2, a limiting rod 3, a static crushing agent 4, concrete 5, a pile hole 6, a core drilling machine 7, a PVC pipe 8, a reinforcing ring 9, a drill hole 10, a lifting rope 11, a rock surface 12 and a back cover 13.

Detailed Description

The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Example one

The embodiment of the application provides a deviation correcting system for a rock-deviating isolated rock bored concrete pile, which comprises a rock deviation 1, a steel casing 2, a limiting rod 3, a static crushing agent 4, concrete 5, a pile hole 6, a PVC (polyvinyl chloride) pipe 8, a reinforcing ring 9, a borehole 10, a lifting rope 11, a rock surface 12 and a back cover 13; drilling holes 10 are drilled in the deviated rocks 1 along the periphery of the inner side of the pile hole 6, a limiting rod 3 is installed in each drilling hole 10, the limiting rod 3 is anchored in the drilling hole 10 through a mortar anchoring body, the stability of the limiting rod 3 can be improved, a lifting rope 11 is connected to the top of each limiting rod 3, a drill bit can be limited by the limiting rod 3 when being ejected and deflected to influence the pile casing, the deflection probability of the steel pile casing 2 is reduced, the limiting rods 3 can be recovered after the construction of the drilling holes 10, the limiting rods 3 are higher than the inclined rock surface 12 by a certain distance, and concrete 5 is filled in the rock surface 12; the steel casing 2 is sleeved outside the limiting rod 3, the inner wall of the steel casing 2 is provided with reinforcing rings 9 at equal intervals according to the hole depth, a drilling hole 10 is drilled on the partial rock 1 in the pile hole 6 through a core drilling machine 7, a PVC pipe 8 is inserted into the drilling hole 10, the bottom of the PVC pipe 8 is provided with a sealing bottom 13, the PVC pipe 8 is filled with a static crushing agent 4, the sealing bottom 13 is provided with a lifting rope 11 which extends out of the PVC pipe 8 to the ground, the static crushing agent 4 can achieve the effects of pre-cracking and loosening of the rock mass, the strength of the partial rock 1 is reduced during subsequent impact drilling, concrete 5 is backfilled to the rock surface 12, the static crushing agent 4 is sealed, the expansion pressure of the static crushing agent 4 can damage the partial rock mass 1, the pre-cracking and loosening effects of the rock mass are achieved, the strength of the partial rock 1 is reduced during impact drilling, and the deviation of an ejection.

Example two

The second application embodiment provides a construction method of a deviation correcting system for a rock deviation isolated rock bored concrete pile, which comprises the following steps:

s1, the limiting rod 3 is provided with a lifting rope 11.

S2, drilling a drill hole 10 on the partial rock 1 along the circumference of the inner side of the pile hole 6 by using a core drilling machine 7, and installing a limiting rod 3, wherein the height of the limiting rod 3 is higher than that of the partial rock 1.

And S3, sleeving the steel casing 2 outside the limiting rod 3 to the highest point of the rock surface 12.

S4, arranging reinforcing rings 9 on the inner wall of the steel casing 2 at equal intervals according to the excavation depth to control the uneven deformation of the steel casing 2.

S5, drilling a hole 10 in a designated position of a rock surface 12 by using a core drilling machine 7, burying a PVC pipe 8 in the hole 10, wherein a back cover 13 is arranged below the PVC pipe 8, the back cover 13 is connected with a lifting rope 11, penetrates through the PVC pipe 8 to the ground, and a static crushing agent 4 is arranged in the PVC pipe 8.

And S6, pouring concrete 5 on the inclined rock face 12.

S7, pre-cracking and loosening rock mass by using the static cracking agent 4.

S8, the lifting rope 11 is lifted to recover the limiting rod 3 and the PVC pipe 8 for secondary utilization.

And S9, continuing construction of the cast-in-situ bored pile.

Claims

1. The utility model provides a rock partial solitary rock bored concrete pile rectifying system which characterized in that: the device comprises a deviated rock (1), a steel casing (2), a limiting rod (3), a static crushing agent (4), concrete (5), a pile hole (6), a PVC pipe (8), a reinforcing ring (9), a drilling hole (10), a lifting rope (11), a rock surface (12) and a back cover (13); drilling a drill hole (10) through a core-pulling machine (7) along the deviated rock (1) on the inner side of one circle of the pile hole (6), installing a limiting rod (3) in the drill hole (10), anchoring the limiting rod (3) in the drill hole (10) through a mortar anchoring body, enabling the limiting rod (3) to be higher than an inclined rock surface (12) by a certain distance, and filling concrete (5) on the rock surface (12); the steel casing (2) is sleeved outside the limiting rod (3), and reinforcing rings (9) with equal intervals are arranged on the inner wall of the steel casing (2) according to the hole depth; a drill hole (10) is drilled in a deviated rock (1) in a pile hole (6) through a core drilling machine (7), a PVC pipe (8) is arranged in the drill hole (10), a back cover (13) is arranged at the bottom of the PVC pipe (8), a static crushing agent (4) is filled in the PVC pipe (8), and a lifting rope (11) is arranged on the back cover (13) and extends out of the PVC pipe (8) to the ground.

2. The deviation correcting system for the partial rock solitary rock bored concrete pile according to claim 1, characterized in that: the drill holes (10) of the limiting rod (3) are uniformly distributed along the inner side of the pile hole (6) for one circle, and the bottoms of the drill holes (10) are flush.

3. The deviation correcting system for the partial rock solitary rock bored concrete pile according to claim 1, characterized in that: the drill holes (10) of the static crushing agent (4) are distributed in a radial shape, and the bottoms of the drill holes (10) are flush.

4. The deviation correcting system for the partial rock solitary rock bored concrete pile according to claim 1, characterized in that: the limiting rods (3) are uniformly distributed along the inner side of the pile holes (6) in one circle, 6-8 limiting rods (3) are arranged in each pile hole (6), the top ends and the bottom ends of all the limiting rods (3) are flush, and the top ends of the limiting rods are higher than the top surface of the concrete (5).

5. The deviation correcting system for the partial rock solitary rock bored concrete pile according to claim 1, characterized in that: the limiting rod (3) is made of a steel bar.

6. The deviation correcting system for the partial rock solitary rock bored concrete pile according to claim 1, characterized in that: the top of the limiting rod (3) is connected with a lifting rope (11).