CN216008504U - Quick tunneling and anchoring device based on hydraulic fracturing - Google Patents
Quick tunneling and anchoring device based on hydraulic fracturing Download PDFInfo
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- CN216008504U CN216008504U CN202122728233.1U CN202122728233U CN216008504U CN 216008504 U CN216008504 U CN 216008504U CN 202122728233 U CN202122728233 U CN 202122728233U CN 216008504 U CN216008504 U CN 216008504U
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Abstract
A rapid tunneling and anchoring device based on hydraulic fracturing comprises a horizontally arranged cylindrical shell, wherein the cylindrical shell is divided into a front section cylinder, a middle section cylinder and a tail section cylinder from front to back, the front section cylinder, the middle section cylinder and the tail section cylinder are connected through flanges, a hydraulic fracturing mechanism and a tunneling mechanism are mounted on the front section cylinder, a soil and rock storage bin and a rotary drilling and anchoring mechanism are arranged in the middle section cylinder, and a propelling oil cylinder is mounted on the tail section cylinder; the hydraulic fracturing mechanism, the tunneling mechanism and the rotary drilling anchoring mechanism are combined into a whole, after the hydraulic fracturing mechanism is used for pre-fracturing a preset drill hole, the tunneling mechanism is partially or wholly pushed by the cutter head, the disturbance of the large-section pushing on the partially complex surrounding rock is reduced, the collapse of the surrounding rock and the settlement of a soil body are reduced, the rotary drilling anchoring mechanism is used for drilling and anchoring the excavated soil body, the frequent replacement and carrying of operation equipment are avoided, the timely supporting of the surrounding rock is guaranteed, and the operation safety is improved.
Description
Technical Field
The utility model relates to a quick tunnelling and anchor device based on hydraulic fracturing belongs to deep stratum tunnelling technical field.
Background
At present, in the technical field of deep rock stratum excavation, the traditional process for excavating coal roadways of various mines mainly comprises machine excavation and manual anchor rod supporting construction, or anchor rod and anchor cable supporting is carried out after excavation equipment is cut, and the tunneling construction process is low in tunneling efficiency, long in empty roof interval time and has certain potential safety hazard.
The high-performance hydraulic jumbolter and the tunneling equipment are combined into a whole, the operation is completed by adopting an operation mode of tunneling firstly and anchoring secondly, so that the supporting operation time is shortened, and the combined tunneling method for improving the mechanization and automation degree is developed to a certain extent.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a quick tunnelling and anchor based on hydraulic fracturing, this tunnelling device can improve tunnelling efficiency and operation security to the strong adaptability of complicated stratum.
In order to achieve the purpose, the utility model provides a quick tunneling and anchoring device based on hydraulic fracturing, which comprises a horizontally arranged cylindrical shell, wherein the cylindrical shell is divided into a front section cylinder, a middle section cylinder and a tail section cylinder from front to back, the front section cylinder, the middle section cylinder and the tail section cylinder are connected through flanges, a hydraulic fracturing mechanism and a tunneling mechanism are arranged on the front section cylinder, a soil and rock storage bin and a rotary drilling and anchoring mechanism are arranged in the middle section cylinder, and a propelling oil cylinder is arranged on the tail section cylinder;
the hydraulic fracturing mechanism is connected to the front end of the tunneling mechanism and comprises a hydraulic packer, a packing water injection pipe, a packer middle core pipe and a fracturing water injection pump, wherein the hydraulic packer comprises a front packer and a rear packer, the front packer and the rear packer are respectively sealed with the inner wall of a preset drill hole where the front packer and the rear packer are located to form a packing section, the front packer and the rear packer are communicated through the packer middle core pipe, one end of the packing water injection pipe is connected with the fracturing water injection pump located at the front end of the packing water injection pipe, and the other end of the packing water injection pipe is connected with the packer middle core pipe;
the tunneling mechanism comprises a cutter head and a partition propelling telescopic hydraulic cylinder, the cutter head is a plurality of concentric rings which are coaxially arranged with the cylindrical shell, a plurality of cutters are arranged on the front end surface of each ring along the circumferential direction of the ring, and the rear end surface of the outermost ring is connected with the partition propelling telescopic hydraulic cylinder along the circumferential direction of the ring;
the soil and stone storage bin is positioned at the front part of the middle section cylinder body and is connected with the tunneling mechanism through a soil and stone conveying pipeline; the rotary drilling anchoring mechanism is located at the rear part of the middle section cylinder, the cylinder section where the rotary drilling anchoring mechanism is located is an opening section surrounding the cylinder in a circle, the rotary drilling anchoring mechanism comprises a cylindrical shell and a jumbolter installed inside the shell, the shell is in transmission connection with a rotary driving device, and a plurality of through holes matched with the outer diameter of a drill rod are formed in the shell at equal intervals along the circumferential direction of the shell. Furthermore, a pressure sensor is installed on the packer central core pipe, and a flow sensor is installed on the packing water injection pipe.
Further, the anchor rod drilling machines are arranged in the circumferential direction of the shell at equal intervals.
The device combines the hydraulic fracturing mechanism, the tunneling mechanism and the rotary drilling anchoring mechanism into a whole, pre-fracturing is carried out on a preset drill hole by utilizing water pressure formed by the hydraulic fracturing mechanism, after the pre-fracturing is completed, the tunneling mechanism is partially or wholly pushed by the cutter head, the disturbance of the large section pushing on a part of complex surrounding rocks is effectively reduced, the collapse of the surrounding rocks and the settlement of a soil body are reduced, the rotary drilling anchoring mechanism carries out drilling anchoring on the excavated soil body, the optimization of an anchoring mode is realized by switching different drilling distances and the row spacing between anchor rods, frequent replacement and carrying of operation equipment are avoided, timely supporting of the surrounding rocks is guaranteed, the tunneling and anchoring operation efficiency is greatly improved, the adaptability to complex rock layers is improved, and the operation safety is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a hydraulic fracturing mechanism;
fig. 3 is a schematic cross-sectional view of the rotary drill anchoring mechanism in its operating state.
In the figure: 1. the hydraulic fracturing device comprises a front section cylinder body, a middle section cylinder body, a tail section cylinder body, a hydraulic fracturing mechanism, a tunneling mechanism, a rotary drilling anchoring mechanism, a hydraulic packer, a water injection pipe, a packer middle core pipe, a hydraulic fracturing pump, a cutter head, a partition propelling telescopic hydraulic cylinder, 13, a cutter, 14, an opening section, 15, a shell, 16, an anchor rod drilling machine, 17, a drill rod, 18, a through hole, 19, a pressure sensor, 20, a flow sensor, 21, a preset drilling hole, 22, an anchor rod, 23 and a tunneling hole.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 3, a fast tunneling and anchoring device based on hydraulic fracturing comprises a horizontally arranged cylindrical shell, wherein the cylindrical shell is divided into a front section cylinder 1, a middle section cylinder 2 and a tail section cylinder 3 from front to back, the front section cylinder 1, the middle section cylinder 2 and the tail section cylinder 3 are connected through flanges, a hydraulic fracturing mechanism 4 and a tunneling mechanism 5 are installed on the front section cylinder 1, a soil and rock storage bin and a rotary drilling and anchoring mechanism 6 are arranged in the middle section cylinder 2, and a propulsion oil cylinder is installed on the tail section cylinder 3;
the hydraulic fracturing mechanism 4 is connected to the front end of the tunneling mechanism 5 and comprises a hydraulic packer 7, a packing water injection pipe 8, a packer central core pipe 9 and a fracturing water injection pump 10, the hydraulic packer 7 comprises a front packer and a rear packer, the front packer and the rear packer are respectively sealed with the inner wall of a preset drill hole where the front packer and the rear packer are located to form a packing section, the front packer and the rear packer are communicated through the packer central core pipe 9, one end of the packing water injection pipe 8 is connected with the fracturing water injection pump 10 located at the front end of the packing water injection pipe, and the other end of the packing water injection pipe 8 is connected with the packer central core pipe 9;
the tunneling mechanism 5 comprises a cutter head 11 and a partition propelling telescopic hydraulic cylinder 12, the cutter head 11 is a plurality of concentric rings which are coaxially arranged with the cylindrical shell, a plurality of cutters 13 are arranged on the front end surface of each ring along the circumferential direction of the ring, and the rear end surface of the outermost ring is connected with the partition propelling telescopic hydraulic cylinder 12 along the circumferential direction of the ring;
the soil and stone storage bin is positioned at the front part of the middle section cylinder body 2 and is connected with the tunneling mechanism 5 through a soil and stone conveying pipeline; the rotary drilling and anchoring mechanism 6 is located at the rear part of the middle-section barrel 2, the barrel section where the rotary drilling and anchoring mechanism 6 is located is an opening section 14 surrounding the barrel in a circle, the rotary drilling and anchoring mechanism 6 comprises a cylindrical shell 15 and an anchor rod drilling machine 16 installed inside the shell 15, the shell 15 is in transmission connection with a rotary driving device, and a plurality of through holes 18 matched with the outer diameter of a drill rod 17 are formed in the shell 15 at equal intervals along the circumferential direction of the shell 15.
In order to further monitor and analyze the water pressure in the packer core tube 9, a pressure sensor 19 is installed on the packer core tube 9, and the pressure sensor 19 is located on one side inside the packer core tube 9; in order to further monitor and analyze the water flow pumped by the fracturing water injection pump 10, a flow sensor 20 is installed on the packing water injection pipe 8, and the flow sensor 20 is located at the upper end of the packing water injection pipe 8 and at the lower end of the fracturing water injection pump 10.
In order to further improve the anchoring efficiency of the drilled hole while maintaining the stability of the surrounding rock, three jumbolters 16 are arranged at equal intervals in the circumferential direction of the casing 15.
The working process is as follows:
firstly, presetting a drilling hole 21 on an advanced working surface, pushing out a hydraulic fracturing mechanism 4 arranged on an inner ring of a cutter head 11 under the power of a main shaft, pushing a hydraulic packer 7 into the preset drilling hole, starting a fracturing water injection pump 10, allowing high-pressure water to pass through a packer central core pipe 9 and enter a hydraulic packer 7 through a packing water injection hole arranged on the packer central core pipe, and tightly attaching the hydraulic packer 7 to the inner wall of the preset drilling hole 21 along with the continuous injection of the high-pressure water to form a packing section; meanwhile, the pressure sensor 19 monitors and analyzes the pressure of the water pressure through the action of the water pressure packer and the inner wall of the fracturing section, and the flow sensor 20 monitors and analyzes the flow of the water pumped by the fracturing water injection pump 10;
after the pre-splitting is finished, analyzing data detected by a pressure sensor 19 and a flow sensor 20 in a hydraulic fracturing mechanism to obtain a stress distribution condition and a flow sensing condition of surrounding rocks, further obtaining data such as porosity and water content of the surrounding rocks according to mechanical properties and physical properties of the surrounding rocks, further adjusting the size of a cutter head 11, a cutter material and a combination mode in real time, for example, propelling a telescopic hydraulic cylinder to push the cutter head in an outermost ring to advance in a subarea under the common surrounding rocks to realize common section cutting, propelling the telescopic hydraulic cylinder to retract in a subarea under hard surrounding rocks, forming a large-section cutter head by an outermost ring, an inner cutter head and an intermediate cutter head ring to break the rocks, enabling the broken rocks to enter a soil and rock storage bin of a middle barrel through a soil and rock transportation pipeline, storing the rocks to a certain volume, and manually transporting the rocks out;
the rotary drilling and anchoring mechanism 6 anchors the soil body where the tunneling hole 23 which is excavated by breaking rock is located, the jumbolter 16 is started to drill the surrounding rock soil, the drill rod 17 is retracted after the drilling is finished, and the anchor rod 22 is driven into the drilled hole through the jumbolter.
The utility model provides a rotation type drilling anchoring mechanism can carry out 360 degrees rotations, selects and adjusts the array pitch between diameter, material and the stock of stock 22 according to the country rock mechanical properties developments under the different country rock conditions.
Claims (3)
1. A quick tunneling and anchoring device based on hydraulic fracturing is characterized by comprising a horizontally arranged cylindrical shell, wherein the cylindrical shell is divided into a front section cylinder (1), a middle section cylinder (2) and a tail section cylinder (3) from front to back, the front section cylinder (1), the middle section cylinder (2) and the tail section cylinder (3) are connected through flanges, a hydraulic fracturing mechanism (4) and a tunneling mechanism (5) are installed on the front section cylinder (1), a soil and rock storage bin and a rotary drilling and anchoring mechanism (6) are arranged in the middle section cylinder (2), and a propulsion oil cylinder is installed on the tail section cylinder (3);
the hydraulic fracturing mechanism (4) is connected to the front end of the tunneling mechanism (5) and comprises a hydraulic packer (7), a packing water injection pipe (8), a packer central core pipe (9) and a fracturing water injection pump (10), the hydraulic packer (7) comprises a front packer and a rear packer, the front packer and the rear packer are respectively sealed with the inner wall of a preset drill hole where the front packer and the rear packer are located to form a packing section, the front packer and the rear packer are communicated through the packer central core pipe (9), one end of the packing water injection pipe (8) is connected with the fracturing water injection pump (10) located at the front end of the packing water injection pipe, and the other end of the packing water injection pipe is connected with the packer central core pipe (9);
the tunneling mechanism (5) comprises a cutter head (11) and a partition propelling telescopic hydraulic cylinder (12), the cutter head (11) is a plurality of concentric rings which are coaxially arranged with the cylindrical shell, a plurality of cutters (13) are arranged on the front end surface of each ring along the circumferential direction of the ring, and the rear end surface of the outermost ring is connected with the partition propelling telescopic hydraulic cylinder (12) along the circumferential direction of the ring;
the soil and stone storage bin is positioned at the front part of the middle section cylinder body (2) and is connected with the tunneling mechanism (5) through a soil and stone conveying pipeline; the rotary drilling anchoring mechanism (6) is located at the rear part of the middle section cylinder body (2), the cylinder body section where the rotary drilling anchoring mechanism (6) is located is an opening section (14) surrounding the cylinder body for one circle, the rotary drilling anchoring mechanism (6) comprises a cylindrical shell (15) and an anchor rod drilling machine (16) installed inside the shell (15), the shell (15) is in transmission connection with a rotary driving device, and a plurality of through holes (18) matched with the outer diameter of a drill rod (17) are formed in the shell (15) at equal intervals along the circumferential direction of the shell (15).
2. The quick tunneling and anchoring device based on hydraulic fracturing as claimed in claim 1, wherein the packer core tube (9) is provided with a pressure sensor (19), and the packing water injection tube (8) is provided with a flow sensor (20).
3. A hydraulic fracturing based rapid tunnelling and anchoring device as claimed in claim 1 or 2, wherein the jumbolter (16) is arranged three equally spaced circumferentially along the casing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122728233.1U CN216008504U (en) | 2021-11-09 | 2021-11-09 | Quick tunneling and anchoring device based on hydraulic fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122728233.1U CN216008504U (en) | 2021-11-09 | 2021-11-09 | Quick tunneling and anchoring device based on hydraulic fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216008504U true CN216008504U (en) | 2022-03-11 |
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ID=80586530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122728233.1U Active CN216008504U (en) | 2021-11-09 | 2021-11-09 | Quick tunneling and anchoring device based on hydraulic fracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216008504U (en) |
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2021
- 2021-11-09 CN CN202122728233.1U patent/CN216008504U/en active Active
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