CN210341885U - Pressure-controllable layered grouting type sleeve valve pipe - Google Patents
Pressure-controllable layered grouting type sleeve valve pipe Download PDFInfo
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- CN210341885U CN210341885U CN201920638164.5U CN201920638164U CN210341885U CN 210341885 U CN210341885 U CN 210341885U CN 201920638164 U CN201920638164 U CN 201920638164U CN 210341885 U CN210341885 U CN 210341885U
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Abstract
A pressure-controllable layered grouting type sleeve valve pipe is used for realizing pressure-controllable and accurate layered grouting and effectively improving grouting quality. The device comprises an outer pipe, an inner pipe, a rotating handle and a pressure measuring device, wherein the lower end of the outer pipe is sealed, the inner wall of the upper part is provided with an inner thread section, a plurality of layers of outer pipe pulp outlet holes are longitudinally arranged on the pipe wall of the lower part at equal intervals, each outer pipe pulp outlet hole consists of at least two circumferential pulp outlet holes which are uniformly distributed, and the outer wall of the outer pipe is provided with a rubber one-way valve which covers each outer pipe pulp outlet hole. The lower end of the inner pipe is closed, a plurality of layers of inner pipe grouting holes are longitudinally arranged on the pipe wall of the lower part of the inner pipe at equal intervals, the center distance of the inner pipe grouting holes of two adjacent layers is equal to the center distance of the outer pipe grouting holes of two adjacent layers, each outer pipe grouting hole consists of at least two grouting holes corresponding to the grouting holes in number and position, the inner pipe main body is inserted into the outer pipe by the rotation of longitudinally penetrating the inner pipe at the upper end of the inner pipe, and the external thread section on the upper part of the inner pipe is in threaded connection with the internal thread section of the outer. The pressure measuring device comprises a pressure sensor fixedly arranged on the outer wall of the inner pipe at the grouting hole.
Description
Technical Field
The utility model relates to a geotechnical engineering construction, in particular to controllable pressure layering slip casting formula sleeve valve pipe.
Background
Along with the continuous development and utilization of underground space, various underground engineering are gradually raised, and the conditions of underpass, adjacent penetration of pile foundations and the like are inevitably met in the construction process. The problem is usually that grouting is used for reinforcing the stratum, so that the disturbance of construction to the stratum and surrounding buildings is reduced, and accidents are avoided.
The traditional grouting method comprises the steps of jet grouting pile grouting, sleeve valve pipe grouting and the like, wherein the sleeve valve pipe grouting is a grouting method initiated by Soletanoche basic engineering company of France in the last 50 centuries, and is also called Soletanoche 3-method. The sleeve valve pipe grouting process has the characteristics that the grouting range and the grouting pressure can be well controlled, repeated grouting can be performed, the possibility of slurry leakage and slurry stringing is low, and the like, and is considered as one of the most reliable grouting methods at home and abroad.
In the construction similar to the shield penetration pile group construction, in order to maintain the stability of the stratum and surrounding buildings and pile groups, the construction method and the grouting pressure need to be strictly controlled. The traditional sleeve valve pipe cannot accurately adjust grouting pressure according to the properties of different strata, and may cause the condition that the stratum instability is caused by overlarge grouting pressure or the stratum reinforcing strength is insufficient due to insufficient grouting pressure. Meanwhile, accurate layered grouting is difficult to carry out, and finally, the grouting effect is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a controllable pressure layering slip casting formula sleeve valve pipe is provided to realize controllable and accurate layering slip casting of pressure, effectively improve the slip casting quality.
The utility model provides an above-mentioned technical problem adopted technical scheme as follows:
the utility model discloses a controllable pressure layering slip casting formula sleeve valve pipe, characterized by including outer tube, inner tube, rotation handle and pressure measurement device, the outer tube lower extreme seals, and the upper portion inner wall has the internal thread section, sets up multilayer outer tube grout outlet on the lower part pipe wall at longitudinal equidistance interval, and every outer tube grout outlet comprises two at least rings to the evenly distributed grout outlet, sets up the rubber check valve that seals each layer of outer tube grout outlet on the outer wall of outer tube; the lower end of the inner pipe is closed, a plurality of layers of inner pipe grouting holes are longitudinally arranged on the pipe wall of the lower part of the inner pipe at equal intervals, the center distance of the inner pipe grouting holes of two adjacent layers is equal to the center distance of the outer pipe grout outlet holes of two adjacent layers, each outer pipe grouting hole consists of at least two grouting holes with the number and the positions corresponding to the grout outlet holes, and a rotating handle longitudinally communicated with the inner pipe is fixedly arranged at the upper end of the inner pipe; the inner pipe main body is inserted into the outer pipe, and an external thread section at the upper part of the inner pipe main body is in threaded connection with an internal thread section of the outer pipe; the pressure measuring device comprises a pressure sensor fixedly arranged on the outer wall of the inner pipe at the grouting hole.
The utility model has the advantages that the height and the contact ratio of the grouting hole 11 and the grout outlet 4 are adjusted by changing the length of the outer pipe inserted into the inner pipe and the circumferential relative position, so that pressure controllable and accurate layered grouting is realized, and the grouting quality is effectively improved; simple structure and convenient operation.
Drawings
The specification includes the following seven drawings:
fig. 1 is a schematic structural view of the pressure-controllable layered grouting type sleeve valve pipe of the present invention;
FIG. 2 is a schematic structural view of the outer tube in the pressure-controllable layered grouting sleeve valve tube of the present invention;
FIG. 3 is a schematic structural view of an inner tube in a pressure-controllable layered grouting type sleeve valve tube of the present invention;
FIG. 4 is a top view of the upper end opening of the middle tube in the pressure-controllable layered grouting sleeve valve tube of the present invention;
FIG. 5 is a partial view of the external thread section at the upper part of the inner tube in the pressure-controllable layered grouting type sleeve valve tube of the present invention;
FIG. 6 is a front view of a rotating handle in a pressure-controllable layered grouting type sleeve valve tube of the present invention;
fig. 7 is a rear view of a rotating handle in a pressure-controllable layered grouting type sleeve valve tube of the present invention;
the figures show the components and corresponding references: the device comprises an outer tube 1, a pressure display meter 2, a placement frame 3, a grout outlet 4, a rubber one-way valve 5, an inner tube 6, an inner tube angle line 7, an outer thread section 8, an inner tube scale line 9, an inner tube reference line 10, a grouting hole 11, a pressure sensor 12, an outer tube angle line 13, an outer tube reference line 14, a rotary handle 15, a bolt 16 and a grip 17.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1, the utility model discloses a controllable pressure layering slip casting formula sleeve valve pipe includes outer tube 1, inner tube 6, rotatory handle 15 and pressure measurement device. Referring to fig. 2, the lower end of the outer pipe 1 is closed, the inner wall of the upper part is provided with an internal thread section, a plurality of outer pipe grout outlet holes are longitudinally arranged on the pipe wall of the lower part at equal intervals, each outer pipe grout outlet hole is composed of at least two circumferentially and uniformly distributed grout outlet holes 4, and the outer wall of the outer pipe 1 is provided with a rubber one-way valve 5 for sealing and covering each outer pipe grout outlet hole. Referring to fig. 3, the lower end of the inner pipe 6 is closed, a plurality of layers of inner pipe grouting holes are longitudinally arranged on the pipe wall of the lower part of the inner pipe at equal intervals, the center distance between every two adjacent layers of inner pipe grouting holes is equal to the center distance between every two adjacent layers of outer pipe grouting holes, each outer pipe grouting hole is composed of at least two grouting holes 11 corresponding to the grouting holes 4 in number and position, and a rotating handle 15 longitudinally communicated with the inner pipe 6 is fixedly arranged at the upper end of the inner pipe 6. The pressure measuring device comprises a pressure sensor 12 fixedly mounted on the outer wall of the inner tube 6 at the grouting hole 11. Referring to fig. 1, the inner pipe 6 is inserted into the outer pipe 1, and the male screw section 8 is screwed to the female screw section of the outer pipe 1. The corresponding positions of the inner pipe 6 and the outer pipe 1 are changed by rotating the handle 15, and the heights and the contact ratio of the grouting holes 11 and the grout outlet 4 are changed, so that the grouting position and the grouting pressure are adjusted.
Referring to fig. 4, for the convenience of adjustment, outer tube angle lines 13 are circumferentially and equidistantly carved on the upper port of the outer tube 1, wherein the outer tube reference lines 14 are formed by thickening and carving the upper port of the outer tube in the number corresponding to the center of the grout outlet 4. The outer wall of the upper part of the inner pipe 6 is carved with inner pipe angle lines 7 and inner pipe scale lines 9 which extend vertically and are annularly at equal intervals, wherein the number of the inner pipe scale lines is that the inner pipe reference lines 10 are formed by thickening and carving the inner pipe scale lines in the positions corresponding to the centers of the grouting holes 11.
Referring to fig. 1, the pressure measuring device further includes a pressure indicator 2 connected to the pressure sensor 12, a rack 3 extending outward is welded to the upper end of the outer wall of the outer tube 1, and the pressure indicator 2 is fixedly mounted on the rack 3. In order to reduce the resistance force applied when the outer pipe is driven in, the lower end of the outer pipe 1 is closed in a conical shape.
Referring to fig. 6 and fig. 7, laterally extending handles 17 are fixedly arranged on both sides of the rotating handle 15, and the rotating handle 15 is fixedly connected with the upper end of the inner tube 6 through a pair of bolts 16 mounted on the side walls on both sides.
As a typical embodiment, referring to fig. 1 to 5, the diameter of the grout outlet 4 and the diameter of the grout injection hole 11 are equal. The number of the outer tube grout outlet holes is 5, each outer tube grout outlet hole is composed of 4 grout outlet holes 4 with the center circumferentially spaced by 90 degrees, the number of the outer tube reference lines 14 is 4, and the outer tube reference lines are carved at the circumferential intervals of 90 degrees. The number of the inner pipe grouting holes is 3, each inner pipe grouting hole is composed of 4 grouting holes 11 with the centers circumferentially spaced by 90 degrees, the number of the inner pipe datum lines 10 is 4, and the inner pipe grouting holes are carved at the circumferential intervals of 90 degrees.
The inner tube 6 is sleeved into the outer tube 1, and the overlapping length of the inner tube is adjusted to enable the grouting holes 11 and the grout outlet holes 4 to be completely overlapped. The inner tube 6 is rotated and raised or lowered within the outer tube 1 by twisting the inner tube 6 with the rotating knob 15. During rotation, the grouting holes 11 and the grout outlet holes 4 will be offset in the horizontal and vertical directions, so that the aim of adjusting grouting pressure is fulfilled. When the grouting holes 11 and the grout outlet 4 are completely overlapped, the grouting pressure is the minimum, and the smaller the overlapped area is, the larger the grouting pressure is. Because the grout outlet holes 4 are symmetrically arranged, the equal-pressure uniform grouting in four directions can be realized, the overlapping degree of the grout outlet holes 11 and the grout outlet holes 4 is judged according to the inner pipe angle lines 7, the inner pipe scale lines 9 and the outer pipe angle lines 13 during grouting, and the grouting pressure is finely adjusted according to the pressure sensor 12 arranged in the inner pipe grout outlet holes 11 and the pressure display meter 2 arranged on the outer pipe 1 so as to achieve the expected grouting pressure. The rubber one-way valve 5 arranged on the outer wall of the outer pipe 1 can effectively prevent the slurry from flowing back, and the grouting quality is improved. The grouting depth can be judged according to the inner pipe scale marks 9, so that grouting of the stratum at a specific position is realized.
Referring to fig. 1, the utility model relates to a controllable pressure layering slip casting formula sleeve valve pipe carries out the slip casting according to following step:
① drilling vertically on the surface of soil;
②, pumping the prepared casing material to the bottom of the hole of the drill rod through the drill rod, and then pouring the casing material from top to bottom;
③ after the pouring of the casing material is finished, vertically pressing the pressure-controllable layered grouting type sleeve valve pipe into the drill hole, and enabling the sleeve valve pipe to be located at the center of the drill hole;
④ according to the position of the stratum to be reinforced and the expected grouting pressure, primarily adjusting the height and the contact ratio of the grouting holes 11 and the grout outlet 4 according to the inner pipe angle line 7, the inner pipe scale line 9 and the outer pipe angle line 13;
⑤ placing a grouting core pipe in the inner pipe 6 for pre-grouting, adjusting the contact ratio of the grouting hole 11 and the grout outlet 4 according to the measured value of the pressure sensor 12, and adjusting the grouting pressure to the designed value;
⑥ performing formal grouting;
⑦ after the formation grouting is finished, adjusting the grouting position, and repeating the steps ④ to ⑥ until all formation grouting is finished.
The above is only used for illustrating some principles of the pressure-controllable layered grouting type sleeve valve tube of the present invention, and it is not intended to limit the present invention to the specific structure and application range shown and described, so all the corresponding modifications and equivalents that may be utilized all belong to the patent scope applied by the present invention.
Claims (8)
1. A controllable pressure layered grouting type sleeve valve pipe is characterized by comprising an outer pipe (1), an inner pipe (6), a rotating handle (15) and a pressure measuring device, wherein the lower end of the outer pipe (1) is closed, the inner wall of the upper part of the outer pipe is provided with an inner thread section, a plurality of outer pipe grout outlet holes are longitudinally arranged on the pipe wall of the lower part at equal intervals, each outer pipe grout outlet hole consists of at least two circumferentially and uniformly distributed grout outlet holes (4), and the outer wall of the outer pipe (1) is provided with a rubber one-way valve (5) for sealing and covering each outer pipe grout outlet hole; the lower end of the inner pipe (6) is closed, a plurality of layers of inner pipe grouting holes are longitudinally arranged on the pipe wall of the lower part of the inner pipe at equal intervals, the center distance between the adjacent two layers of inner pipe grouting holes is equal to the center distance between the adjacent two layers of outer pipe grouting holes, each outer pipe grouting hole consists of at least two grouting holes (11) corresponding to the grouting holes (4) in number and position, and a rotating handle (15) longitudinally communicated with the inner pipe (6) is fixedly arranged at the upper end of the inner pipe (6); the main body of the inner pipe (6) is inserted into the outer pipe (1), and an external thread section (8) at the upper part of the inner pipe is in threaded connection with an internal thread section of the outer pipe (1); the pressure measuring device comprises a pressure sensor (12) fixedly arranged on the outer wall of the inner pipe (6) at the grouting hole (11).
2. The pressure-controllable layered grouting type sleeve valve pipe as claimed in claim 1, wherein: the hole diameters of the grout outlet (4) and the grouting hole (11) are equal.
3. The pressure-controllable layered grouting type sleeve valve tube as claimed in claim 2, wherein: outer pipe angle lines (13) are annularly and equidistantly carved on an upper port of the outer pipe (1) at intervals, wherein the number of the outer pipe angle lines is that outer pipe reference lines (14) are formed by thickening and carving the positions of the outer pipe angle lines corresponding to the centers of the grout outlet holes (4); the outer wall of the upper part of the inner pipe (6) is carved with inner pipe angle lines (7) and inner pipe scale lines (9) which extend vertically and are circumferentially spaced at equal intervals, wherein the number of the inner pipe scale lines (10) is formed by thickening and carving the inner pipe scale lines corresponding to the center of the grouting hole (11).
4. A pressure controlled layered grouting sleeve valve tube as claimed in claim 3, wherein: the number of the outer tube grout outlet holes is 5, each outer tube grout outlet hole consists of 4 grout outlet holes (4) with the centers circumferentially spaced by 90 degrees, the number of the outer tube reference lines (14) is 4, and the outer tube reference lines are engraved at the circumferential intervals of 90 degrees.
5. The pressure-controllable layered grouting type sleeve valve tube according to claim 4, wherein: the number of the inner pipe grouting holes is 3, each inner pipe grouting hole is composed of 4 grouting holes (11) with the centers circumferentially spaced by 90 degrees, the number of the inner pipe datum lines (10) is 4, and the inner pipe grouting holes are carved at the circumferential intervals of 90 degrees.
6. The pressure-controllable layered grouting type sleeve valve pipe as claimed in claim 1, wherein: the pressure measuring device further comprises a pressure display meter (2) connected with the pressure sensor (12), the upper end of the outer wall of the outer pipe (1) is welded with the placing frame (3) extending outwards, and the pressure display meter (2) is fixedly installed on the placing frame (3).
7. The pressure-controllable layered grouting type sleeve valve pipe as claimed in claim 1, wherein: the lower end of the outer tube (1) is sealed in a conical shape.
8. The pressure-controllable layered grouting type sleeve valve pipe as claimed in claim 1, wherein: and the two sides of the rotating handle (15) are fixedly provided with transversely extending grips (17), and the rotating handle (15) is fixedly connected with the upper end of the inner pipe (6) through a pair of bolts (16) arranged on the side walls of the two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920638164.5U CN210341885U (en) | 2019-05-06 | 2019-05-06 | Pressure-controllable layered grouting type sleeve valve pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920638164.5U CN210341885U (en) | 2019-05-06 | 2019-05-06 | Pressure-controllable layered grouting type sleeve valve pipe |
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| CN210341885U true CN210341885U (en) | 2020-04-17 |
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| CN201920638164.5U Active CN210341885U (en) | 2019-05-06 | 2019-05-06 | Pressure-controllable layered grouting type sleeve valve pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004914A (en) * | 2019-05-06 | 2019-07-12 | 中国电建集团铁路建设有限公司 | One kind can pressure control delamination pour slurry formula mini-valve tube and grouting method |
| CN114622564A (en) * | 2022-04-26 | 2022-06-14 | 西南石油大学 | Bionic induction type biological grouting device for uniformly reinforcing foundation soil |
-
2019
- 2019-05-06 CN CN201920638164.5U patent/CN210341885U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004914A (en) * | 2019-05-06 | 2019-07-12 | 中国电建集团铁路建设有限公司 | One kind can pressure control delamination pour slurry formula mini-valve tube and grouting method |
| CN114622564A (en) * | 2022-04-26 | 2022-06-14 | 西南石油大学 | Bionic induction type biological grouting device for uniformly reinforcing foundation soil |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100160 701, 7th floor, building 3, yard 10, Automobile Museum East Road, Fengtai District, Beijing Patentee after: China Power Construction Railway Construction Investment Group Co.,Ltd. Patentee after: CHENGDU HYDROPOWER CONSTRUCTION ENGINEERING CO., LTD., SINOHYDRO BUREAU 7 Co.,Ltd. Patentee after: POWERCHINA CHENGDU CONSTRUCTION INVESTMENT Co.,Ltd. Address before: 100044 1001, 10th floor, building 2, yard 22, Chegongzhuang West Road, Haidian District, Beijing Patentee before: POWERCHINA RAILWAY CONSTRUCTION Co.,Ltd. Patentee before: CHENGDU HYDROPOWER CONSTRUCTION ENGINEERING CO., LTD., SINOHYDRO BUREAU 7 Co.,Ltd. Patentee before: POWERCHINA CHENGDU CONSTRUCTION INVESTMENT Co.,Ltd. |
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| CP03 | Change of name, title or address |