阅读说明：本技术 一种连续墙嵌岩成墙系统及方法 (Rock-socketed wall forming system and method for continuous wall ) 是由 杨振宇 杨忠财 刘金红 于 2020-05-22 设计创作，主要内容包括：一种连续墙嵌岩成墙系统及方法,包括桩架、动力总成、钻杆和钻具,动力总成通过钻杆驱动钻具；所述钻具为集束潜孔锤,其包括载体和若干设在载体上的潜孔锤,所述载体的投影区域呈矩形,投影区域的宽度与连续墙成槽的宽度相同,所述潜孔锤呈矩阵分布。当遇到坚硬的岩层施工地段时,利用集束潜孔锤下钻,不仅可以粉碎岩层,每次作业可以成型一个方形槽,集束潜孔锤连续作业,可以快速成槽。潜孔锤是岩石地层常用的工具之一,本发明利用潜孔锤开凿岩层的优势,将潜孔锤集束后应用到连续墙的成槽系统中,有效降低价格成本,且作业效率高。(A continuous wall rock-socketed wall forming system and a method thereof comprise a pile frame, a power assembly, a drill rod and a drilling tool, wherein the power assembly drives the drilling tool through the drill rod; the drilling tool is a cluster down-the-hole hammer and comprises a carrier and a plurality of down-the-hole hammers arranged on the carrier, the projection area of the carrier is rectangular, the width of the projection area is the same as the width of the continuous wall grooving, and the down-the-hole hammers are distributed in a matrix manner. When a hard rock stratum construction section is encountered, the cluster down-the-hole hammer is used for drilling, the rock stratum can be crushed, a square groove can be formed in each operation, and the cluster down-the-hole hammer can be continuously operated to form the groove rapidly. The down-the-hole hammer is one of common tools for rock stratums, and the down-the-hole hammer cluster is applied to a grooving system of a continuous wall by utilizing the advantage of rock stratum excavation of the down-the-hole hammer, so that the price cost is effectively reduced, and the operation efficiency is high.)

1. A continuous wall rock-socketed wall forming system comprises a pile frame, a power assembly, a drill rod and a drilling tool, wherein the power assembly drives the drilling tool through the drill rod; the method is characterized in that: the drilling tool is a cluster down-the-hole hammer and comprises a carrier and a plurality of down-the-hole hammers arranged on the carrier, the projection area of the carrier is rectangular, the width of the projection area is the same as the width of the continuous wall grooving, and the down-the-hole hammers are distributed in a matrix manner.

2. A continuous wall rock-socketed wall forming system as claimed in claim 1, wherein: the carrier comprises a fixing mechanism, an air pressure chamber arranged at the top of the fixing mechanism, a dust collecting chamber arranged on the air pressure chamber and an anti-bending plate arranged on the dust collecting chamber, and the drill rod is connected with the anti-bending plate; the down-the-hole hammer is arranged in the fixing mechanism, the upper end of the down-the-hole hammer penetrates through the air pressure chamber and extends into the dust collecting chamber, the bottom of the down-the-hole hammer is provided with a working part, the working part is provided with an air outlet, the air pressure chamber is connected with the air outlet through an air pipe, the center of the down-the-hole hammer is provided with a gas collecting hole, and the gas collecting hole is communicated with the dust collecting chamber; the dust collecting device is characterized in that a dust collecting pipe is arranged in the drill rod, a gap is formed between the dust collecting pipe and the drill rod, the lower end of the dust collecting pipe is communicated with the dust collecting chamber, and the upper end of the dust collecting pipe is connected with a dust collecting device through a leading-out pipe.

3. A continuous wall rock-socketed wall forming system as claimed in claim 2, wherein: the drill rod is connected with the bending-resistant plate through a connecting mechanism, the connecting mechanism comprises a hexagonal butt joint positioned at the top of the drilling tool, and the lower end of the drill rod is provided with a hexagonal butt joint hole matched with the hexagonal butt joint.

4. A continuous wall rock-socketed wall forming system as claimed in claim 1, wherein: the fixing mechanism comprises an upper connecting body and a lower connecting body; the upper connecting body comprises a first top plate and a first enclosing plate, the first enclosing plate encloses a first accommodating cavity, and a first reinforcing plate is arranged in the first accommodating cavity; the lower connecting body comprises a second bottom plate and a second enclosing plate, the second enclosing plate encloses a second accommodating cavity, a second reinforcing plate is arranged in the second accommodating cavity, and the lower end of the first enclosing plate is connected with the upper end of the second enclosing plate through a bolt; the down-the-hole hammer sequentially penetrates through the second bottom plate, the second reinforcing plate, the first reinforcing plate and the first top plate.

5. A rock-socketed wall forming method for a continuous wall is characterized by comprising the following steps:

(1) sequentially operating and continuously grooving by using a cluster down-the-hole hammer; the cluster down-the-hole hammer comprises a carrier and a plurality of down-the-hole hammers arranged on the carrier, wherein the projection area of the carrier is rectangular, the width of the projection area is the same as the width of a continuous wall grooving, and the down-the-hole hammers are distributed in a matrix manner;

(2) and placing a reinforcement cage and pouring concrete into the groove.

6. A method for forming a wall by embedding rock into a continuous wall as claimed in claim 5, wherein: the carrier comprises a fixing mechanism, an air pressure chamber arranged at the top of the fixing mechanism, a dust collecting chamber arranged on the air pressure chamber and an anti-bending plate arranged on the dust collecting chamber, and the drill rod is connected with the anti-bending plate; the down-the-hole hammer is arranged in the fixing mechanism, the upper end of the down-the-hole hammer penetrates through the air pressure chamber and extends into the dust collecting chamber, the bottom of the down-the-hole hammer is provided with a working part, the working part is provided with an air outlet, the air pressure chamber is connected with the air outlet through an air pipe, the center of the down-the-hole hammer is provided with a gas collecting hole, and the gas collecting hole is communicated with the dust collecting chamber; the dust collecting device is characterized in that a dust collecting pipe is arranged in the drill rod, a gap is formed between the dust collecting pipe and the drill rod, the lower end of the dust collecting pipe is communicated with the dust collecting chamber, and the upper end of the dust collecting pipe is connected with a dust collecting device through a leading-out pipe.

7. A method for forming a wall by embedding rock into a continuous wall as claimed in claim 6, wherein: the drill rod is connected with the bending-resistant plate through a connecting mechanism, the connecting mechanism comprises a hexagonal butt joint positioned at the top of the drilling tool, and the lower end of the drill rod is provided with a hexagonal butt joint hole matched with the hexagonal butt joint.

8. A method for forming a wall by embedding rock into a continuous wall as claimed in claim 5, wherein: the fixing mechanism comprises an upper connecting body and a lower connecting body; the upper connecting body comprises a first top plate and a first enclosing plate, the first enclosing plate encloses a first accommodating cavity, and a first reinforcing plate is arranged in the first accommodating cavity; the lower connecting body comprises a second bottom plate and a second enclosing plate, the second enclosing plate encloses a second accommodating cavity, a second reinforcing plate is arranged in the second accommodating cavity, and the lower end of the first enclosing plate is connected with the upper end of the second enclosing plate through a bolt; the down-the-hole hammer sequentially penetrates through the second bottom plate, the second reinforcing plate, the first reinforcing plate and the first top plate.

Technical Field

The invention relates to a continuous wall, in particular to a rock-socketed wall forming system for forming a groove by utilizing a down-the-hole hammer.

Background

In urban subway construction, the underground continuous wall process is widely applied to a foundation pit supporting system, and the construction process for constructing the underground continuous wall by using a pile punching machine to assist a trenching machine is suitable for softer geology in the prior art. The underground diaphragm wall is constructed under the geological conditions of hard rock and thick rock layer such as medium weathering and slightly weathering, the problems of deviated holes, slow punching and the like are inevitable in the construction, so that the construction efficiency is low, the construction period is delayed, and the quality problems of bulging of the diaphragm wall, cage clamping of a reinforcement cage and the like exist. At present, if subway construction with hard rock and thick rock stratum is performed, a double-wheel slot milling machine is generally adopted for grooving to construct the underground diaphragm wall, but the double-wheel slot milling machine has the defect of high price.

Disclosure of Invention

The invention aims to solve the technical problem of providing a rock-socketed wall forming system and method for a continuous wall, which are low in cost, capable of being constructed on rock strata and high in operation efficiency.

In order to solve the technical problems, the technical scheme of the invention is as follows: a continuous wall rock-socketed wall forming system comprises a pile frame, a power assembly, a drill rod and a drilling tool, wherein the power assembly drives the drilling tool through the drill rod; the drilling tool is a cluster down-the-hole hammer and comprises a carrier and a plurality of down-the-hole hammers arranged on the carrier, the projection area of the carrier is rectangular, the width of the projection area is the same as the width of the continuous wall grooving, and the down-the-hole hammers are distributed in a matrix manner. When a hard rock stratum construction section is encountered, the cluster down-the-hole hammer is used for drilling, the rock stratum can be crushed, a square groove can be formed in each operation, and the cluster down-the-hole hammer can be continuously operated to form the groove rapidly. The down-the-hole hammer is one of common tools for rock stratums, and the down-the-hole hammer cluster is applied to a grooving system of a continuous wall by utilizing the advantage of rock stratum excavation of the down-the-hole hammer, so that the price cost is effectively reduced, and the operation efficiency is high.

As an improvement, the carrier comprises a fixing mechanism, an air pressure chamber arranged at the top of the fixing mechanism, a dust collecting chamber arranged on the air pressure chamber and an anti-bending plate arranged on the dust collecting chamber, and the drill rod is connected with the anti-bending plate; the down-the-hole hammer is arranged in the fixing mechanism, the upper end of the down-the-hole hammer penetrates through the air pressure chamber and extends into the dust collecting chamber, the bottom of the down-the-hole hammer is provided with a working part, the working part is provided with an air outlet, the air pressure chamber is connected with the air outlet through an air pipe, the center of the down-the-hole hammer is provided with a gas collecting hole, and the gas collecting hole is communicated with the dust collecting chamber; the dust collecting device is characterized in that a dust collecting pipe is arranged in the drill rod, a gap is formed between the dust collecting pipe and the drill rod, the lower end of the dust collecting pipe is communicated with the dust collecting chamber, and the upper end of the dust collecting pipe is connected with a dust collecting device through a leading-out pipe.

As an improvement, the drill rod is connected with the anti-bending plate through a connecting mechanism, the connecting mechanism comprises a hexagonal butt joint positioned at the top of the drilling tool, and the lower end of the drill rod is provided with a hexagonal butt joint hole matched with the hexagonal butt joint.

As an improvement, the fixing mechanism comprises an upper connecting body and a lower connecting body; the upper connecting body comprises a first top plate and a first enclosing plate, the first enclosing plate encloses a first accommodating cavity, and a first reinforcing plate is arranged in the first accommodating cavity; the lower connecting body comprises a second bottom plate and a second enclosing plate, the second enclosing plate encloses a second accommodating cavity, a second reinforcing plate is arranged in the second accommodating cavity, and the lower end of the first enclosing plate is connected with the upper end of the second enclosing plate through a bolt; the down-the-hole hammer sequentially penetrates through the second bottom plate, the second reinforcing plate, the first reinforcing plate and the first top plate.

Compared with the prior art, the invention has the following beneficial effects:

when a hard rock stratum construction section is encountered, the cluster down-the-hole hammer is used for drilling, the rock stratum can be crushed, a square groove can be formed in each operation, and the cluster down-the-hole hammer can be continuously operated to form the groove rapidly. The down-the-hole hammer is one of common tools for rock stratums, and the down-the-hole hammer cluster is applied to a grooving system of a continuous wall by utilizing the advantage of rock stratum excavation of the down-the-hole hammer, so that the price cost is effectively reduced, and the operation efficiency is high.

Drawings

FIG. 1 is a schematic view of the present invention.

FIG. 2 is a schematic view of a cluster down-the-hole hammer.

FIG. 3 is a schematic of the down-the-hole hammer distribution.

FIG. 4 is a top view of a diaphragm wall channel.

Fig. 5 is a front view of a continuous wall grooving.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in figure 1, the continuous wall rock-socketed wall forming system comprises a pile frame 1, a power assembly 2, a drill rod 3 and a drilling tool 4, wherein the power assembly drives the drilling tool 4 through the drill rod 3.

As shown in fig. 3, the drilling tool 4 is a cluster down-the-hole hammer, which comprises a carrier and a plurality of down-the-hole hammers 46 arranged on the carrier, wherein the projection area of the carrier is rectangular, the width of the projection area is the same as the width of the continuous wall grooving, the down-the-hole hammers 46 are distributed in a matrix, and the width of the grooving 7 of the cluster down-the-hole hammer 46 is the same as the width of the continuous wall grooving each time, so that the grooving operation efficiency can be improved.

As shown in fig. 2, the carrier comprises a fixing mechanism 45, an air pressure chamber 44 arranged at the top of the fixing mechanism 45, a dust collecting chamber 43 arranged on the air pressure chamber 44, and an anti-bending plate 42 arranged on the dust collecting chamber 43, wherein the drill rod 3 is connected with the anti-bending plate 42; the down-the-hole hammer 46 is arranged in the fixing mechanism 45, the upper end of the down-the-hole hammer 46 penetrates through the air pressure chamber 44 and extends into the dust collecting chamber 43, the bottom of the down-the-hole hammer 46 is provided with a working part, the working part is provided with an air outlet, the air pressure chamber 44 is connected with the air outlet through an air pipe, the center of the down-the-hole hammer 46 is provided with a gas collecting hole, and the gas collecting hole is communicated with the dust collecting chamber 43; the dust collecting pipe 6 is arranged in the drill rod 3, a gap is formed between the dust collecting pipe 6 and the drill rod 3, the lower end of the dust collecting pipe 6 is communicated with the dust collecting chamber 43, and the upper end of the dust collecting pipe 6 is connected with the dust collecting device through the eduction tube. The drill rod 3 is connected with the bending-resistant plate 42 through a connecting mechanism, the connecting mechanism comprises a hexagonal butt joint 41 positioned at the top of the drilling tool, and the lower end of the drill rod 3 is provided with a hexagonal butt joint hole matched with the hexagonal butt joint. During operation, dust is generated at the working part at the bottom of the drilling tool, and under the action of air pressure, the dust enters the dust collecting chamber 43 through the gas collecting hole; the dust in the dust collecting chamber 43 is conveyed upwards through the dust collecting pipe 6 in the drill rod 3 and finally collected by the dust collecting device 5 through the eduction pipe, so that the problem that the dust is discharged to the outside is solved.

As shown in fig. 2, the fixing mechanism 45 includes an upper connecting body and a lower connecting body; the upper connecting body comprises a first top plate 451 and a first enclosing plate 453, the first enclosing plate 453 encloses a first accommodating cavity, and a first reinforcing plate 452 is arranged in the first accommodating cavity; the lower connecting body comprises a second bottom plate 456 and a second enclosing plate 455, the second enclosing plate 455 encloses a second accommodating cavity, a second reinforcing plate 454 is arranged in the second accommodating cavity, and the lower end of the first enclosing plate 453 is connected with the upper end of the second enclosing plate 455 through a bolt; the down-the-hole hammer 46 passes through the second bottom plate 456, the second reinforcing plate 454, the first reinforcing plate 452, and the first top plate 451 in this order.

As shown in figures 4 and 5, the continuous wall rock-socketed wall forming method comprises the following steps:

(1) excavating a square groove 7 by using a cluster down-the-hole hammer;

(2) forming a continuous wall to form a groove after continuous operation of the cluster down-the-hole hammer;

(3) and placing a reinforcement cage and pouring concrete into the groove.

The principle of the invention is as follows: when a hard rock stratum construction section is encountered, the cluster down-the-hole hammer is used for drilling, the rock stratum can be crushed, a square groove can be formed in each operation, and the cluster down-the-hole hammer can be continuously operated to form the groove rapidly. The down-the-hole hammer is one of common tools for rock stratums, and the down-the-hole hammer cluster is applied to a grooving system of a continuous wall by utilizing the advantage of rock stratum excavation of the down-the-hole hammer, so that the price cost is effectively reduced, and the operation efficiency is high.