CN112746854A - Prevent slip casting structure and push bench of tube coupling locking suitable for push bench - Google Patents
Prevent slip casting structure and push bench of tube coupling locking suitable for push bench Download PDFInfo
- Publication number
- CN112746854A CN112746854A CN202110196062.4A CN202110196062A CN112746854A CN 112746854 A CN112746854 A CN 112746854A CN 202110196062 A CN202110196062 A CN 202110196062A CN 112746854 A CN112746854 A CN 112746854A
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- China
- Prior art keywords
- pipe
- pipe joint
- tube coupling
- cutter head
- push bench
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Links
- 230000008878 coupling Effects 0.000 title claims abstract description 22
- 238000010168 coupling process Methods 0.000 title claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 22
- 238000007569 slipcasting Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000002002 slurry Substances 0.000 claims description 19
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the field of building construction, in particular to control in the operation and construction process of a push bench. The invention is realized by the following technical scheme: the utility model provides a prevent slip casting structure of tube coupling locking suitable for pipe push bench, contain cutter head assembly and with the tube coupling that cutter head assembly connects, cutter head assembly contains blade disc and blade disc drive arrangement, still contains: the water inlet pipe comprises a water inlet pipe, a pulp inlet pipe and a discharge pipe, wherein the water inlet pipe extends into an inner cavity of a pipe joint, the front end of the water inlet pipe is connected with a tail end pipe, and a through pipe opening for the tail end pipe to pass through is formed in the pipe joint. The invention aims to provide a pipe joint locking prevention grouting structure suitable for a push bench and the push bench.
Description
Technical Field
The invention relates to the field of building construction, in particular to control in the operation and construction process of a push bench.
Background
In recent years, with the increase of the number of urban vehicles and the number of people, the pace of urban construction is accelerated continuously, and the problems of traffic jam, potential safety hazard and the like caused by repeated excavation of roads in urban municipal pipeline construction appear.
In order to solve the problem, a trenchless technology is provided, which mainly utilizes a pipe jacking machine to carry out underground construction operation, has the characteristics of small excavated earth volume, high automation degree, high construction speed, no damage to existing facilities, no influence on social order, no influence on weather and the like, and is widely applied to pipeline engineering of municipal drainage, water supply, electric power, industry and the like.
For example, chinese patent publication No. CN201720888683.8 discloses a push bench, which mainly includes a push bench head disposed inside a push bench and a cutter head disposed at the front end of the push bench head, wherein the cutter head is used to cut mud at the front end of the push bench, and a driving device, such as an oil cylinder, is used to push the push bench to advance along with the push bench. In the prior art, the water inlet pipe is arranged inside the top pipe, water enters the water inlet pipe inside the top pipe, and the water is mixed with soil cut off by the cutter head, so that the soil is convenient to discharge.
However, the operation environment of the pipe jacking machine is complex and changeable, and when the environment is mostly soft soil stratum, the push of the pipe jacking machine is smooth. And when in actual construction, the pipe jacking machine can dig in at a rock section, and at the moment, the pipe jacking machine can often have the situation that pipe joints are locked and cannot go forward continuously.
Disclosure of Invention
The invention aims to provide a pipe joint locking prevention grouting structure suitable for a push bench and the push bench.
The invention is realized by the following technical scheme: the utility model provides a prevent slip casting structure of tube coupling locking suitable for pipe push bench, contain cutter head assembly and with the tube coupling that cutter head assembly connects, cutter head assembly contains blade disc and blade disc drive arrangement, still contains: the inlet tube, advance thick liquid pipe and discharge pipe, the inlet tube is in extend in the inner chamber of tube coupling, the inlet tube front end is connected with the tip pipe, seted up the confession on the tube coupling the siphunculus mouth that the tip pipe passes through, the tip pipe end contains and is used for the direction, with the water flush to regional stand pipe between blade disc subassembly and the cliff.
Preferably, the number of the pipe joints is multiple, the through pipe openings are arranged on a first pipe joint and a second pipe joint, and the first pipe joint is the pipe joint closest to the cutterhead assembly.
Preferably, the end pipe includes a connecting pipe, one end of the connecting pipe is connected to the water inlet pipe, the other end of the connecting pipe is closed, a branch pipe is connected to the connecting pipe, the branch pipe includes an extension pipe extending in a radial direction of the pipe section and passing through the through pipe opening, and a guide pipe connected to the extension pipe, the guide pipe extends in an axial direction of the pipe section and has an opening facing a direction of the cutter head assembly.
Preferably, the plurality of branch pipes are uniformly connected with the connecting pipe in a circumferential array.
Preferably, the slurry inlet pipe and the discharge pipe are both positioned in the inner cavity of the pipe joint, and the pipe joint is provided with a slurry outlet communicated with the slurry inlet pipe.
Preferably, a buffer spacer area is arranged between the slurry outlet and the through pipe orifice in the axial direction of the pipe joint, and the length distance of the buffer spacer area in the axial direction of the pipe joint is-meter.
Preferably, the slurry outlet is arranged on the fourth pipe joint and the fifth pipe joint.
The utility model provides a push bench contains a slip casting structure who prevents the tube coupling locking suitable for push bench still contain and be used for promoting cutterhead subassembly with the advancing device that the tube coupling impeld forward, advancing device is located the tube coupling is kept away from in the axial direction of tube coupling one side of cutterhead subassembly.
Preferably, the propelling device comprises a plurality of hydraulic pushing rods and a pushing disc connected with the plurality of hydraulic pushing rods.
Preferably, the pipe joint further comprises a rectifying joint, and the rectifying joint is positioned between two adjacent pipe joints.
In summary, the invention has the following beneficial effects:
1. high-pressure water is prevented from directly hitting the cutter head and the cutter head driving device through the inner cavity of the pipe joint, and damage to the cutter head assembly after long-time work is avoided.
2. The spraying position of the high-pressure water is outside the pipe joint, so that the area between the outside of the pipe joint and the rock wall is cleaned in time, the locking of the pipe joint caused by the blocking of the rock in the area is the highest frequency, and the key cleaning of the area greatly reduces the locking of the pipe joint.
3. The guide direction of the guide pipe is forward, so that the high-pressure water can clean the key area, and finally flows to the cutter head to clean the surface of the cutter head without damage.
4. The high-pressure water is brushed forwards again, is mixed with the soil cleaned by the cutter head, is mixed into slurry, increases the fluidity of the soil and is convenient to discharge.
5. A buffer space of 7-12 meters exists between the water outlet position and the pulp outlet position. This can avoid the pulp to be washed away by water immediately after the pulp comes out from the pulp outlet 32, and is beneficial to the independence and the supporting effect of the pulp.
Description of the drawings:
FIG. 1 is a schematic diagram of example 1;
FIG. 2 is a schematic view of the fitting of the pipe section to the water inlet pipe;
fig. 3 is a schematic illustration of the hidden pipe section of fig. 2.
In the figure: 1. cutterhead, 2, cutterhead drive arrangement, 3, first pipe section, 4, second pipe section, 5, fourth pipe section, 6, auxiliary deviation rectifying section, 7, fifth pipe section, 8, slurry inlet pipe, 9, water inlet pipe, 10, discharge pipe, 11, terminal pipe, 111, connecting pipe, 112, branch pipe, 1121, extension pipe, 1122, guide pipe, 31, through pipe orifice, 32 and slurry outlet.
The present invention will be described in further detail below.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Embodiment 1, a slip casting structure for preventing a pipe joint from locking suitable for a push bench is shown in fig. 1, and the foremost end (i.e., the leftmost end in fig. 1) is a cutter head 1 and a cutter head driving device 2. The structure of the cutter head driving device 2 and the cutter head 1 can use the mature structure in the prior art without modification. The cutter head driving device 2 drives the cutter head 1 to rotate, and soil in the front stratum is cut and tunneled. Behind the cutterhead assembly, to the right in fig. 1, there are provided a plurality of tube segments. The pipe joints are named and numbered gradually in the direction away from the cutter head assembly, namely a first pipe joint 3, a second pipe joint 4, a third pipe joint, a fourth pipe joint 5 and a fifth pipe joint 7 from left to right in the figure 1.
As shown in fig. 1 and 2, in the present case, a three-tube independent design is adopted. Specifically, a slurry inlet pipe 8, a water inlet pipe 9 and a discharge pipe 10 which are respectively independent are arranged in the inner cavity of the pipe joint. The pipe joint is provided with a slurry outlet 32, and slurry flowing in the slurry inlet pipe 8 is discharged through the slurry outlet 32, enters the outside of the pipe joint and contacts with a rock wall. The method increases the structural strength near the rock wall in the construction process, improves the operation smoothness, and avoids the situation that the rock wall collapses due to soil loss and insufficient strength in the operation process. The key point in the present case is the arrangement of the water inlet pipe 9. The water inlet pipe 9 is arranged in the inner cavity of the pipe joint, and the front end of the water inlet pipe is connected with a tail end pipe 11. As shown in fig. 2 and 3, the rear end of the end pipe 11 is connected with the water inlet pipe 9, and the front end is sealed. The end pipe 11 includes a connection pipe 111 and a plurality of branch pipes 112 connected to the connection pipe 111. The branch pipes 112 are provided in a plurality and are uniformly arranged in a circumferential array. Each branch pipe 112 includes an extension pipe 1121 and a guide pipe 1122. The pipe section is provided with a through pipe opening 31, the extension pipe 1121 extends in the radial direction of the pipe section and extends through the through pipe opening 31, and the guide pipe 1122 extends in the axial direction of the pipe section with the pipe opening facing forward.
By such an arrangement of the inlet pipe 9, the following advantages are obtained: firstly, high-pressure water is prevented from directly hitting the cutter head 1 and the cutter head driving device 2 through an inner cavity of a pipe joint, and damage to the cutter head assembly after long-time work is avoided. Secondly, the spraying position of the high-pressure water is arranged on the outer side of the pipe joint, so that the area between the outer side of the pipe joint and the rock wall is cleaned in time, the locking of the pipe joint caused by the blocking of the rock in the area is the highest frequency, and the key cleaning of the area greatly reduces the locking of the pipe joint. Thirdly, the guide direction of the guide pipe 1122 is forward, so that the high-pressure water can not only clean the above-mentioned key area, but also finally flow toward the cutter head 1, thereby cleaning the surface of the cutter head 1 without damage. Fourthly, the high-pressure water is brushed forwards again and mixed with the mud cleaned by the cutter head 1 to form slurry, so that the fluidity of the mud is increased, and the mud is convenient to discharge.
The water entering from the water inlet pipe 9, the soil produced in the advancing process and the slurry entering from the slurry inlet pipe 8 are all discharged smoothly through the discharge pipe 10 finally.
In this embodiment, the same is also designed for the location where the water and slurry enter. As shown in fig. 1 and 2, the positions of the through openings 31 are set in the first pipe joint 3 and the second pipe joint 4. The pulp outlet 32 is arranged in the fourth pipe joint 5 and the fifth pipe joint 7 further back, and the pulp outlet 32 is not arranged on the third pipe joint, so that a buffer area is formed between the pulp outlet position and the pulp outlet position. The technical effect of such design is that, on the one hand, it is more preceding to go out water, and is more abundant to the water pressure of the regional clearance between the anterior tube coupling outside and the cliff, and cleaning performance is better. On the other hand, the buffer distance of 7-12 meters is kept to avoid that the pulp is immediately washed away by water just after coming out of the pulp outlet 32, which is beneficial to the independence and the supporting effect of the pulp outlet.
A push bench comprises the grouting structure which is suitable for preventing pipe joints from being locked and also comprises a propelling device, wherein the propelling device is arranged in figure 1, and the rear part of the pipe joints (not shown in the figure) can adopt a hydraulic driving mode. The propelling device comprises a plurality of hydraulic rods which are parallel to each other, and the front ends of the hydraulic rods are connected with a propelling disc together. When the hydraulic rod extends out, the pushing disc pushes the pipe joint to be pushed forwards.
As shown in fig. 1, an auxiliary rectifying joint 6 is added between part of adjacent pipe joints, such as the fourth pipe joint 5 and the fifth pipe joint 7 in fig. 1, so as to correct the direction of a certain propelling route in the process of a certain break angle.
Claims (10)
1. The utility model provides a prevent slip casting structure of tube coupling locking suitable for pipe push bench, contain cutter head assembly and with the tube coupling that cutter head assembly connects, cutter head assembly contains blade disc (1) and blade disc drive arrangement (2), and its characterized in that still contains: inlet tube (9), advance thick liquid pipe (8) and discharge pipe (10), inlet tube (9) are in extend in the inner chamber of tube coupling, inlet tube (9) front end is connected with end pipe (11), the confession has been seted up on the tube coupling the siphunculus mouth (31) that end pipe (11) pass through, end pipe (11) end contains and is used for the direction, with the water washing to guide tube (1122) in region between cutter head assembly and the cliff.
2. The grouting structure suitable for pipe jacking machine to prevent pipe joint locking according to claim 1, characterized in that: the pipe joints are multiple, the through pipe opening (31) is installed on the first pipe joint (3) and the second pipe joint (4), and the first pipe joint (3) is closest to the pipe joint of the cutter head assembly.
3. The grouting structure suitable for pipe jacking machine to prevent pipe joint locking according to claim 2, characterized in that: end pipe (11) contain connecting pipe (111), connecting pipe (111) one end with inlet tube (9) are connected, and the other end is sealed, be connected with branch pipe (112) on connecting pipe (111), branch pipe (112) contain the radial direction of tube coupling extend and pass through lead to pipe (31) stretch out pipe (1121) and with stretch out stand pipe (1122) that pipe (1121) are connected, stand pipe (1122) are in the axial direction of tube coupling extends and the opening orientation cutterhead subassembly direction.
4. The grouting structure suitable for pipe jacking machine to prevent pipe joint locking according to claim 3, characterized in that: the number of the branch pipes (112) is multiple, and the branch pipes are uniformly connected with the connecting pipe (111) in a circumferential array.
5. The grouting structure for preventing pipe joint locking of a pipe jacking machine as claimed in any one of claims 1 to 4, wherein: the pulp inlet pipe (8) and the discharge pipe (10) are both positioned in the inner cavity of the pipe joint, and the pipe joint is provided with a pulp outlet (32) communicated with the pulp inlet pipe (8).
6. The grouting structure suitable for pipe jacking machine to prevent pipe joint locking according to claim 5, characterized in that: and a buffer spacer area is arranged between the slurry outlet (32) and the through pipe orifice (31) in the axial direction of the pipe joint, and the length distance of the buffer spacer area in the axial direction of the pipe joint is 7-11 m.
7. The grouting structure suitable for pipe jacking machine to prevent pipe joint locking according to claim 6, characterized in that: the slurry outlet (32) is arranged on the fourth pipe joint (5) and the fifth pipe joint (7).
8. A push bench comprising the anti-locking grouting structure for pipe joints of the push bench as claimed in any one of claims 1-7, characterized in that: still contain and be used for promoting cutterhead subassembly with the advancing's of tube coupling advancing's advancing device is located the tube coupling is kept away from in the axial direction of tube coupling one side of cutterhead subassembly.
9. The push bench of claim 8, wherein: the propelling device comprises a plurality of hydraulic push rods and a push disc connected with the plurality of hydraulic push rods.
10. The grouting structure suitable for pipe jacking machine to prevent pipe joint locking according to claim 9, characterized in that: still contain the festival of rectifying, the festival of rectifying is located two adjacent pipe joints between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110196062.4A CN112746854B (en) | 2021-02-22 | 2021-02-22 | Grouting structure suitable for pipe joint locking prevention of push bench and push bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110196062.4A CN112746854B (en) | 2021-02-22 | 2021-02-22 | Grouting structure suitable for pipe joint locking prevention of push bench and push bench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112746854A true CN112746854A (en) | 2021-05-04 |
| CN112746854B CN112746854B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110196062.4A Active CN112746854B (en) | 2021-02-22 | 2021-02-22 | Grouting structure suitable for pipe joint locking prevention of push bench and push bench |
Country Status (1)
| Country | Link |
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| CN (1) | CN112746854B (en) |
Citations (12)
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| CN207126435U (en) * | 2017-03-10 | 2018-03-23 | 广州市德伯技高工业技术有限公司 | Circulating water treatment device with self-purification function |
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2021
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| CN112746854B (en) | 2023-04-28 |
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