CN109162726B - Deviation correcting tool head and tool head deviation correcting method - Google Patents
Deviation correcting tool head and tool head deviation correcting method Download PDFInfo
- Publication number
- CN109162726B CN109162726B CN201810962815.6A CN201810962815A CN109162726B CN 109162726 B CN109162726 B CN 109162726B CN 201810962815 A CN201810962815 A CN 201810962815A CN 109162726 B CN109162726 B CN 109162726B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- tool head
- pressure water
- water jet
- swing frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims description 30
- 238000005507 spraying Methods 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- 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
- E21D9/1066—Making by using boring or cutting machines with fluid jets
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)
- Nozzles (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention belongs to the field of pipe jacking construction, and provides a deviation correcting tool head and a deviation correcting method thereof aiming at the problem that the existing tool head usually performs deviation correction in the jacking process and can return to a preset route after going for a certain distance, so that a working pipe still deviates from the preset route, wherein the technical scheme mainly comprises the following steps: all establish the jet orifice along the circumference in tool head position, but set up wobbling high pressure water jet nozzle and whitewashing mouth in the jet orifice, the swing angle equals 360 and divides the quantity of jet orifice, when rectifying, automatic control system adjusts the direction and the jet capacity of high pressure water jet nozzle and whitewashing mouth according to the skew direction and the offset that monitoring system detected, cut unnecessary earth through high pressure water jet, supply because the earth of deviating and cutting more through the whitewashing, make the tool head can right in situ, thereby guarantee that follow-up pipeline also advances along predetermined route top.
Description
Technical Field
The invention relates to the field of pipe jacking construction, in particular to a deviation rectifying tool head and a deviation rectifying method of the tool head.
Background
The tool head is also called a tool pipe, is the part which is firstly jacked in pipe jacking construction, is usually in a tubular structure, and is provided with a cutter head at the end part thereof to cut soil so as to open a way and lead a way for a subsequently jacked working pipe. Due to the complex actual geological conditions, for example the presence of difficult-to-cut stones in the earth layers, the tool head may be displaced from the intended line, and consequently the subsequent working pipe. In order to solve the deviation, a deviation monitoring mechanism is usually arranged in the tool head, 4 deviation-correcting oil cylinders are uniformly distributed at the head position along the circumferential direction, the deviation-correcting oil cylinders make corresponding strokes according to the monitored deviation direction and the monitored deviation amount, meanwhile, the jacking oil cylinder pushes the tool head to advance, and under the mutual cooperation of the deviation direction and the monitored deviation amount, the tool head returns to a preset pipeline after the tool head advances for a certain distance. However, the pipeline in the distance is already in an offset state and cannot be changed, so that even if the tool head returns to the preset pipeline, the subsequently jacked pipe still advances along an offset path (as shown in fig. 1), and finally, after the pipe jacking construction is completed, the whole pipeline can be subjected to an offset section like the section without being laid along the preset pipeline, so that the engineering quality is not high, and the problem needs to be improved.
Disclosure of Invention
The invention aims to provide a deviation correcting tool head capable of being righted in situ, which can be locally returned to the original position at an offset position, thereby ensuring that the path of a jacking pipe always follows a preset pipeline and solving the technical problem.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a tool head rectifies, is including installing the skew monitoring system in tool head inside, and the equipartition is more than 4 injection mouths that run through the tool head pipe wall on the circumference of the head position of tool head, erects swing mechanism in the injection mouth, erects and to adopt current multiple mode, branch fixed etc. for example. The swing mechanism comprises a first swing frame which swings along the circumferential direction of the tool head, the first swing frame is driven by a first driving mechanism, the swing angle of the first swing frame is 360 degrees and the number of the jet ports is divided by the number of the jet ports, a high-pressure water jet nozzle and a slurry spraying nozzle are arranged on the first swing frame, the high-pressure water jet nozzle is connected with a high-pressure pumping system through a water pipe, the slurry spraying nozzle is connected with a slurry conveying system through a slurry conveying pipe, and the deviation monitoring system, the first driving mechanism, the high-pressure pumping system and the slurry conveying system are connected with an automatic control system.
According to the technical scheme, the high-pressure water jet nozzle sprays high-pressure water jet to cut redundant soil, slurry formed by the cut soil mixed water can flow into the tool pipe along the jet orifice, the slurry spraying nozzle opposite to the high-pressure water jet nozzle in the radial direction sprays slurry, the slurry is supplemented to the multi-cut part to provide supporting force for the tool pipe, and the supporting force can simultaneously extrude the slurry near the high-pressure water jet nozzle to move towards the high-pressure water jet nozzle, so that the high-pressure water jet nozzle is convenient to cut off, the high-pressure water jet nozzle and the high-pressure water jet nozzle are matched to achieve an effect of on-site righting, and the tool head can timely return to the original position after being; the swing angle of the first swing frame is the spraying range of the high-pressure water jet nozzle and the guniting nozzle, the whole circumference can be sprayed by the arrangement of the swing angle of the first swing frame, and therefore the deviation of the tool head in any direction can be corrected.
Furthermore, the swing mechanism further comprises a second swing frame which swings along the axial direction of the tool head, the second swing frame is fixedly connected with the first swing frame, the second swing frame is driven by a second driving mechanism, and the second driving mechanism is connected with an automatic control system.
Through the technical scheme, the second swing frame swings axially to enlarge the cutting area and the supporting area, and the deviation rectifying efficiency is improved.
Furthermore, the first swing frame is composed of two side plates and a transverse plate for connecting the two side plates, a rotatable transverse shaft is arranged between the two side plates, a high-pressure water jet nozzle and a guniting nozzle are fixed on the transverse shaft, the first driving mechanism is fixed on one of the side plates through a supporting frame, and the first driving shaft is fixed with the transverse shaft; one end of the second swing frame is fixed with the first swing frame, the other end of the second swing frame is fixed with a second driving shaft, and the second driving shaft is driven by a second driving mechanism fixed on the inner wall of the jet orifice.
Through the technical scheme, the whole swing mechanism is compact in structure and small in occupied space, and excessive interference to swing is avoided.
Furthermore, the jet orifice comprises a cylindrical section and a conical section which are sequentially connected in the direction from the inside of the pipe to the outside of the pipe, and the outer edge of the conical section is in arc transition with the outer pipe wall of the tool head.
Through the technical scheme, the outward-expanding conical section shape and the arc transition play a role in guiding slurry formed by cutting to flow into the jet orifice.
Further, the guniting nozzle sprays a mixture of mud and a mud curing agent.
Through the technical scheme, the mixture can promote the solidification of the slurry, so that a larger supporting force is provided for the tool pipe.
The invention also provides a deviation rectifying method by utilizing the tool head, which specifically comprises the following steps:
firstly, a monitoring system detects the offset direction and displacement of a tool head and outputs the offset direction and displacement to an automatic control system, and the automatic control system controls a jacking oil cylinder to stop working;
step two, the automatic control system drives the first driving mechanism in the corresponding spray nozzle to operate according to the offset direction so as to rotate the first swing frame, so that the spray direction of the guniting nozzle is consistent with the offset direction, and simultaneously drives the first driving mechanism in the spray nozzle which is opposite to the first driving mechanism in the radial direction to operate so as to rotate the first swing frame, so that the spray direction of the high-pressure water jet nozzle is opposite to the offset direction;
and step three, after the guniting nozzle and the high-pressure water jet nozzle are in place, stopping the first driving mechanism, and controlling the guniting nozzle and the nozzle to respectively guniting and spraying the high-pressure water jet by the automatic control system according to the offset.
Through the technical scheme, the first step can obtain real-time offset information so as to correct in time at the initial offset generation stage, larger deviation is avoided, the automatic control system adjusts the direction of the guniting nozzle according to the offset direction to supplement redundant cutting parts, meanwhile, the automatic control system adjusts the direction of the high-pressure water jet nozzle opposite to the radial direction to cut off the less cutting parts, after the two nozzles are in place through position adjustment in the second step, the first driving mechanism stops working to enable the positions of the two nozzles to keep the adjusted state unchanged, the stability of the jet direction is ensured, the jet quantity can be controlled according to the offset to ensure the righting effect, and offset caused by over correction is avoided.
Further, when the second swing frame is provided, the method further comprises a fourth step of driving a second driving mechanism in the nozzle in which the guniting nozzle and the high-pressure water jet nozzle in the second step are located to rotate the second swing frame so that the guniting nozzle and the high-pressure water jet nozzle swing in the axial direction.
Through the technical scheme, the area of the jet can be further increased in the step four, so that the cutting and supporting working efficiency is increased.
Further, in step three, the speed of the guniting is equal to the speed of the high-pressure water jet cutting.
By adopting the technical scheme, the effects of edge cutting, edge supplementing and how much supplementing are achieved, the whole deviation rectifying process is compact, and the centering effect is improved.
Further, after the deviation correction is completed, the high-pressure water jet nozzle and the guniting nozzle are restored to the original positions.
By adopting the technical scheme, the two nozzles can return to the original positions, so that the next correction can be conveniently carried out.
In conclusion, the invention has the following beneficial effects:
1. the direction of alignment of the two nozzles can be adjusted to realize deviation correction of any position deviation, and the high-pressure water jet nozzles and the guniting nozzles are matched together to achieve an effect of on-site righting, so that the tool head can return to the original position in time after being deviated, and the follow-up jacking pipe can be jacked according to a preset route;
2. the swing frame drives the two nozzles to realize axial injection, so that the injection area can be increased, and the deviation rectification efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a tool head deviation correcting operation in the prior art;
FIG. 2 is a schematic view of the overall construction of a tool head according to the present application;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an elevation view of a tool head structure of the present application;
FIG. 5 is a cross-sectional view taken along section line B-B in FIG. 4;
FIG. 6 is an enlarged view of portion C of FIG. 5;
FIG. 7 is a schematic view of the tool head deviation correcting operation of the present application;
fig. 8 is an enlarged view of a portion C in another embodiment of the present application.
In the figure, 1, a tool head; 2. an ejection port; 21. a cylindrical section; 22. a conical section; 3. a swing mechanism; 31. a first swing frame; 311. a side plate; 312. a transverse plate; 32. a horizontal axis; 4. a high-pressure water jet nozzle; 5. a guniting nozzle; 6. a strut; 7. a pulp conveying pipe; 8. a water pipe; 9. a first drive mechanism; 91. a first drive shaft; 10. a support frame; 11. a second swing frame; 12 a second drive mechanism; 121. a second drive shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The following specific examples are given by way of illustration only and not by way of limitation, and it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without inventive faculty to the invention without departing from the scope of the invention which is defined in the claims and the appended claims.
As shown in fig. 2 to 6, the tool head 2 is a tubular structure, and includes an offset monitoring system (not shown) disposed inside for detecting the offset of the tool head, and a plurality of ejection ports 2, here 4, are uniformly distributed at the head position along the circumferential direction thereof and penetrate through the wall of the tube. The jet orifice 2 is a cylindrical section 21 and a conical section 22 in sequence from the inside of the pipe to the outside of the pipe, and the outer edge of the conical section 22 is in circular arc transition with the outer wall of the pipe, so that the formed jet orifice can guide slurry and is convenient to flow into the pipe along the jet orifice. The swing mechanism 3 is erected in the jet orifice 2, the swing mechanism 3 comprises a first swing frame 31, the first swing frame 31 is fixedly connected with one end of a support rod 6, and the support rod 6 is fixed on the inner wall of the jet orifice 2. The first driving shaft 91 is driven by a first driving mechanism 9, and the first driving mechanism 9 is fixed on one of the side plates through a supporting frame 10. The first swing frame 31 includes two side plates 311 and a horizontal plate 312, and the side plates 311 and the horizontal plate 312 define an open frame, and the size and space thereof can be adjusted according to actual conditions to avoid interfering with the swing of the nozzle. A transverse shaft 32 is provided between the two side plates 311 so as to be rotatable thereon, and the transverse shaft 32 is fixed to the first drive shaft 91 of the first drive mechanism 9. The horizontal shaft 32 is integrally provided with the high-pressure water jet nozzle 4 and the guniting nozzle 5, so that the whole circumference can be covered by the spraying range of the nozzles, and the swinging angle of the first swinging frame 31 is equal to 360 degrees divided by the number of spraying openings; the high-pressure water jet nozzle 4 is connected with an external high-pressure pumping system (not shown in the figure) through a water pipe 8, the guniting nozzle 5 is connected with an external grout conveying system (not shown in the figure) through a grout conveying pipe 7, soil can be smashed and cut by the high-pressure water jet, the smashed soil and water are mixed into slurry, the slurry finally flows into the interior of the tool head from a jet orifice, the slurry is mixed with a slurry curing agent through the guniting nozzle 5, the supporting force of the slurry can be further improved through adding the slurry curing agent, the deviation monitoring system, the first driving mechanism, the high-pressure pumping system and the external grout conveying system are connected with an automatic system (not shown in the figure), and therefore automatic deviation.
Referring to fig. 7, the tool head can be corrected according to the structure, and the method specifically comprises the following steps: step one, when the deviation monitoring system monitors that the tool head 1 deviates, the monitoring system transmits a deviation signal to an automatic control system, and the automatic control system controls a jacking oil cylinder (not shown) to stop working, so that the tool head 1 and all jacking pipelines stay at the current position; step two, the deviation signals of the monitoring system comprise deviation direction signals and deviation signals, the automatic control system firstly judges the spraying direction of the high-pressure water jet nozzle 4 and the guniting direction of the guniting nozzle 5 corresponding to the deviation direction signals according to the deviation direction signals, wherein the high pressure water jet needs to crush and cut the soil, which should be cut but not cut due to the deviation, so that the jet direction thereof should be opposite to the deviation direction, the spraying direction should be the same as the offset direction, as shown in fig. 7, if the tool head 1 is deflected downwardly by a certain amount, a part of the soil above the tool head should be cut by the high-pressure water jet, and the multiple cut-off parts located in the downward direction of the tool head should be supplemented by the guniting; in addition, in order to ensure the centralizing effect, the cutting direction and the slurry supporting direction are set to be consistent in the radial direction, that is, the spraying direction of the high-pressure water jet nozzle 4 is opposite to the spraying direction of the slurry spraying nozzle 5 in the radial direction, and based on the configuration, the automatic control system controls the first driving mechanism 9 to drive the first swing frame 31 to swing to a corresponding angle, so that the spraying directions of the two nozzles meet the deviation rectifying requirement; step three, after the high-pressure water jet nozzle 4 and the guniting nozzle 5 are in place, the automatic control system controls the spraying amount of the high-pressure water jet nozzle 4 and the guniting nozzle 5 according to the offset signal, wherein the cutting speed is preferably the same as the guniting speed, so that the whole progress is compact, and the righting effect is further ensured; in order to facilitate the next correction, after the correction is completed, the automatic control system drives the first driving mechanism 9 to restore the position of the first swing frame 31, so as to drive the high-pressure water jet nozzle 4 and the guniting nozzle 5 to restore the position.
As shown in fig. 8, this solution is different from the previous solution in that the strut 6 is removed, the second swing frame 11 is added, and the position of the second swing frame 11 may be the original position of the strut 6, or may be other positions, but is not limited thereto. The second swing frame 11 has one end fixed to the cross plate 312 of the first swing frame 31 and the other end fixed to the second drive shaft 121 of the second drive mechanism 12 fixed to the inner wall of the ejection port 2. The swing angle of the second swing frame 11 can be calculated according to the actual tool head size, the specific position of the ejection port, and the offset. The axes of the first driving shaft 91 and the second driving shaft 121 are perpendicular to each other, and the high-pressure water jet nozzle 4 and the guniting nozzle 3 can swing along the circumference and the axial direction through the arrangement. When the deviation is corrected, on the basis of the deviation correction method, after the high-pressure water jet nozzle 4 and the guniting nozzle 5 start to spray in the third step, the automatic control system obtains the swing angle according to the offset and drives the second driving mechanism 12 to operate, so that the second swing frame 11 drives the first swing frame 31 to swing back and forth along the axial direction, the axial swing of the high-pressure water jet nozzle 4 and the guniting nozzle 5 is realized, and the deviation correction efficiency is improved.
Claims (4)
1. A tool head deviation rectifying method is characterized in that: the adopted deviation-rectifying tool head comprises a deviation monitoring system arranged in the tool head, more than 4 jet orifices penetrating through the wall of the tool head are uniformly distributed on the circumference of the head of the tool head, a swing mechanism is erected in the jet orifices and comprises a first swing frame swinging along the circumferential direction of the tool head, the first swing frame is driven by a first driving mechanism, the swing angle is 360 degrees and the number of the jet orifices is divided by the number, a high-pressure water jet nozzle and a slurry spraying nozzle are arranged on the first swing frame, the high-pressure water jet nozzle is connected with a high-pressure pumping system through a water pipe, the slurry spraying nozzle is connected with a slurry conveying system through a slurry conveying pipe, the deviation monitoring system, the first driving mechanism, the high-pressure pumping system and the slurry conveying system are connected with an automatic control system, the swing mechanism further comprises a second swing frame swinging along the axial direction of the tool head, and the second swing frame is fixedly connected with the first swing, the second swing frame is driven by a second driving mechanism, the second driving mechanism is connected with an automatic control system, the first swing frame is composed of two side plates and a transverse plate for connecting the two side plates, a rotatable transverse shaft is arranged between the two side plates, a high-pressure water jet nozzle and a slurry spraying nozzle are fixed on the transverse shaft, the first driving mechanism is fixed on one of the side plates through a supporting frame, and a first driving shaft is fixed with the transverse shaft; one end of the second swing frame is fixed with the first swing frame, the other end of the second swing frame is fixed with a second driving shaft, the second driving shaft is driven by a second driving mechanism fixed on the inner wall of the jet orifice, the jet orifice comprises a cylindrical section and a conical section which are sequentially connected in the direction from the inside to the outside of the pipe, the outer edge of the conical section is in arc transition with the outer wall of the tool head, and the mixture of slurry and a slurry curing agent is sprayed out of the slurry spraying nozzle, and the method specifically comprises the following steps:
firstly, a monitoring system detects the offset direction and displacement of a tool head and outputs the offset direction and displacement to an automatic control system, and the automatic control system controls a jacking oil cylinder to stop working;
step two, the automatic control system drives the first driving mechanism in the corresponding spray nozzle to operate according to the offset direction so as to rotate the first swing frame, so that the spray direction of the guniting nozzle is consistent with the offset direction, and simultaneously drives the first driving mechanism in the spray nozzle which is opposite to the first driving mechanism in the radial direction to operate so as to rotate the first swing frame, so that the spray direction of the high-pressure water jet nozzle is opposite to the offset direction;
and step three, after the guniting nozzle and the high-pressure water jet nozzle are in place, stopping the first driving mechanism, and controlling the guniting nozzle and the nozzle to respectively guniting and spraying the high-pressure water jet by the automatic control system according to the offset.
2. The tool bit deviation rectifying method according to claim 1, wherein: when the second swing frame is provided, the fourth step is further included, the second driving mechanism in the nozzle in which the guniting nozzle and the high-pressure water jet nozzle in the second step are driven to operate so as to rotate the second swing frame, and the guniting nozzle and the high-pressure water jet nozzle are enabled to swing along the axial direction.
3. A tool head deviation rectifying method according to any one of claims 1-2, characterized in that: in step three, the speed of the guniting is equal to the speed of the high-pressure water jet cutting.
4. A tool head deviation rectifying method according to any one of claims 1-2, characterized in that: and after the deviation correction is finished, restoring the high-pressure water jet nozzle and the guniting nozzle to the original positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962815.6A CN109162726B (en) | 2018-08-22 | 2018-08-22 | Deviation correcting tool head and tool head deviation correcting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962815.6A CN109162726B (en) | 2018-08-22 | 2018-08-22 | Deviation correcting tool head and tool head deviation correcting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109162726A CN109162726A (en) | 2019-01-08 |
| CN109162726B true CN109162726B (en) | 2020-01-03 |
Family
ID=64896288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810962815.6A Active CN109162726B (en) | 2018-08-22 | 2018-08-22 | Deviation correcting tool head and tool head deviation correcting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162726B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109408A (en) * | 2021-11-23 | 2022-03-01 | 中铁隧道局集团有限公司 | Front-mounted shield tunneling attitude control system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04327685A (en) * | 1991-04-26 | 1992-11-17 | Hakko Co Ltd | Excavator for soil |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213635U (en) * | 1987-09-25 | 1988-06-15 | 北京市市政工程研究所 | Monitor for top pipe deviation correcting |
| CN1324200C (en) * | 2005-03-04 | 2007-07-04 | 赵延龙 | Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation |
| CN101787693B (en) * | 2010-03-22 | 2011-05-18 | 中冶建筑研究总院有限公司 | High pressure powder-spray nozzle for high pressure powder spray method |
| CN202501100U (en) * | 2011-12-14 | 2012-10-24 | 上海博欢基础钢构件有限公司 | Forced deviation correction device of tube push bench |
| CN202746763U (en) * | 2012-08-29 | 2013-02-20 | 金中天集团建设有限公司 | Large-diameter and long-distance slurry balance pipe-jacking construction device for reinforced concrete pipe |
| CN103541658B (en) * | 2013-11-04 | 2015-09-09 | 上海隧道工程股份有限公司 | A kind of antipriming pipe horizontal jet grouting drill bit |
| CN103835730B (en) * | 2014-03-10 | 2016-01-20 | 上海盾构设计试验研究中心有限公司 | The synchronous rotary jet grouting device of a kind of circular cross section |
| CN104790873B (en) * | 2015-02-14 | 2017-08-29 | 河南理工大学 | Soft rock layer jet is oriented to the integrated drilling method of the anti-collapse hole of pore-forming reaming |
| CN105862959B (en) * | 2016-05-20 | 2018-04-03 | 中国电建集团华东勘测设计研究院有限公司 | A kind of device for shield tunnel back side soil disturbance |
| CN106761395A (en) * | 2017-03-11 | 2017-05-31 | 上海久卓机电设备有限公司 | Deep hole drill |
| CN107387104B (en) * | 2017-08-09 | 2023-10-17 | 中国铁建重工集团股份有限公司 | Jet shield tunneling machine and tunneling method |
-
2018
- 2018-08-22 CN CN201810962815.6A patent/CN109162726B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04327685A (en) * | 1991-04-26 | 1992-11-17 | Hakko Co Ltd | Excavator for soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109162726A (en) | 2019-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109882073A (en) | Variable-diameter double-high-pressure mixing and spraying pile and diameter changing method thereof | |
| CN110692496B (en) | Automatic farmland water-saving irrigation system capable of coping with wind power change | |
| CN101871320B (en) | Automatic hydraulic offset-correcting method for horizontal drilling and specific drilling tool | |
| CN107190775B (en) | Pipe comb curtain construction method | |
| CN109162726B (en) | Deviation correcting tool head and tool head deviation correcting method | |
| CN106065776A (en) | Ultrahigh pressure auxiliary rock TBM cutterhead | |
| CN204656783U (en) | A kind of controlled variable spray gun | |
| CN110172969A (en) | Quadruple pipe Construction of High Pressure Jet Grouting Pile method | |
| CN111622289B (en) | Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and slot forming construction method thereof | |
| CN111622288B (en) | Hydraulic mechanical combined rock breaking milling wheel and double-wheel slot milling machine | |
| CN103541658B (en) | A kind of antipriming pipe horizontal jet grouting drill bit | |
| CN104841585B (en) | A kind of controlled variable spray gun | |
| CN115341849A (en) | Hydraulic re-spraying type omnibearing high-pressure injection grouting porous drill rod and method | |
| CN103643970A (en) | Multi-shaft horizontal rotary jet grouting machine and construction method thereof | |
| CN105104115A (en) | Reel sprinkling irrigation machine | |
| CN106391345A (en) | Spouting equipment for filling tunnel precutting trough | |
| CN109083594B (en) | Coal seam hydraulic direction adjustable drilling device | |
| CN218598214U (en) | Pipe jacking slurry grouting device | |
| CN201582491U (en) | Pipe-jacking excavator with variable-amplitude cutter disc | |
| EP1862596A1 (en) | A method and plant for consolidating soil by injecting liquid in the soil | |
| CN107762524B (en) | Water cutting shield machine | |
| CN213198128U (en) | Water-saving automatic cement curing means | |
| JP2010101011A (en) | Method and unit for drilling hole in concrete | |
| CN203685206U (en) | Multi-shaft horizontal jet grouting machine | |
| CN113718757A (en) | Bottom expanding device and method based on cast-in-place large-diameter tubular pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |