CN116575919A - Well wall structure anchored by stratum freezing pipe - Google Patents
Well wall structure anchored by stratum freezing pipe Download PDFInfo
- Publication number
- CN116575919A CN116575919A CN202310694242.4A CN202310694242A CN116575919A CN 116575919 A CN116575919 A CN 116575919A CN 202310694242 A CN202310694242 A CN 202310694242A CN 116575919 A CN116575919 A CN 116575919A
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- CN
- China
- Prior art keywords
- plate
- freezing
- freezing pipe
- pipe
- wall structure
- 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.)
- Pending
Links
- 230000008014 freezing Effects 0.000 title claims abstract description 84
- 238000007710 freezing Methods 0.000 title claims abstract description 84
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 238000004873 anchoring Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 description 13
- 239000004568 cement Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/10—Preparation of the ground
- E21D1/12—Preparation of the ground by freezing
- E21D1/14—Freezing apparatus
-
- 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
- Y02E10/10—Geothermal energy
Abstract
The invention relates to the technical field of freezing inclined shafts, in particular to a well wall structure for anchoring stratum freezing pipes. According to the invention, a tensile force is applied to the top end of the connecting plate through the T-shaped pressing plate, the connecting plate drives the fixed shaft to rotate in the T-shaped pressing plate, the connecting plate is adjusted to be in a horizontal state after being deflected, the side end parts of the connecting plate are clung to the inner side of the fixed frame, the two supporting plates are quickly fixed, the freezing pipe is fixed through the clamping of the first clamping plate and the second clamping plate, the cut part is fixed through the supporting plates, the first clamping plate and the second clamping plate are used for fixing the cut part, and after cutting is finished, the cut part can be temporarily fixed, so that the upper section of the freezing pipe is prevented from inclining in the later stage, and the cutting effect is affected.
Description
Technical Field
The invention relates to the technical field of freezing inclined shafts, in particular to a well wall structure anchored by a stratum freezing pipe.
Background
Inclined shaft exploitation is the first choice and main exploitation mode when deep coal resources are exploited in northwest regions of China. Between the earth surface and the stable bedrock, wind-blown sand is often covered, the third system and the fourth system surface soil, weak broken mudstones, sandstones and other unstable stratum are required to be frozen manually to consolidate soil bodies in an excavation range into a waterproof freezing wall with a certain bearing capacity, the pit shaft is excavated under the protection of the freezing wall, and the following defects are caused for inclined shaft freezing construction.
At present, the freezing holes are generally vertical holes, a multi-row pipe freezing mode is generally adopted, the freezing pipes and the well wall do not form an integral structure after freezing is completed, and the freezing pipes cannot bear any function when the posture of the well wall is changed due to formation deformation and other reasons in the later period.
The cutting device is lack in the cutting process, particularly when the cutting construction is finished, the support connection of the bottom end is avoided, the upper section is easy to incline and collapse, and certain potential safety hazards are brought to the construction safety.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a well wall structure for anchoring a stratum freezing pipe.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a stratum freeze pipe anchored wall of a well structure, includes the stratum, the top fixed mounting in stratum has two at least freeze the pipe, and is a plurality of freeze the side of pipe and all be provided with same guard plate, every the bottom of freezing the pipe is all fixed mounting has the arc steel sheet, every the inside of freezing the pipe all is provided with the feed liquor pipe, a plurality of the circumference surface of freezing the pipe all is provided with two backup pads.
As a preferable technical scheme of the invention, the top end of each supporting plate is fixedly provided with a fixed frame, the inside of each fixed frame is slidably provided with a directional sliding plate, the inner side of each supporting plate is fixedly provided with at least two buffer pads, the top ends of the two directional sliding plates are fixedly provided with the same first clamping plate, the side ends of a plurality of freezing pipes positioned on the opposite and opposite surfaces of the first clamping plate are provided with second clamping plates, the first clamping plates are connected with the second clamping plates, the side end parts of each directional sliding plate are slidably provided with telescopic rods, and the side end parts of each telescopic rod are fixedly provided with two positioning plates.
As a preferable technical scheme of the invention, the side end parts of each fixing frame are fixedly provided with connecting frames, the inside of each connecting frame is rotatably provided with a T-shaped pressing plate, the inner side of each T-shaped pressing plate is rotatably provided with a connecting plate, the two side end parts of each connecting plate are fixedly provided with fixing shafts, and each fixing shaft is connected with the T-shaped pressing plate.
Compared with the prior art, the invention has the following beneficial effects:
firstly, filling cement slurry in an annular space between a freezing pipe and a stratum to prevent water in the later stratum from being conducted through the annular space, and welding an arc-shaped steel plate on the top of the freezing pipe at the bottom of an excavation surface after filling cement slurry in the freezing pipe at the bottom of the excavation surface when the freezing pipe in the excavation range is cut off during pit shaft excavation; the method comprises the steps that an arc-shaped steel plate attached to the shape of a well wall is welded on a freezing pipe on the top of an excavation face, an outer well wall and an inner well wall are sequentially poured, the outer wall can be supported by adopting a steel arch frame anchor spray, or can be supported by adopting reinforced concrete cast-in-situ, after construction of the well wall is completed, the freezing pipe on the upper portion of the excavation range is filled with cement paste, the freezing well wall is limited and supported by using a liquid supply pipe, an anchoring effect is achieved, and long-term stability of the well wall is guaranteed.
Let T type press plate apply a pulling force to the top of connecting plate, the connecting plate drives the fixed axle and rotates in the inside of T type press plate simultaneously, let the connecting plate self take place to deflect the back, adjust the connecting plate to the horizontality, let the inboard of fixed frame is hugged closely to the side tip of connecting plate, fix two backup pads fast, the centre gripping of rethread first splint and second splint, fix the freezing pipe through the backup pad, use first splint and second splint to fix the position of excision simultaneously, after the cutting is accomplished, also can carry out temporary fixation with the position of excision, prevent to cut to later stage, freeze the pipe upper segment and take place the slope, influence the effect of cutting.
Through the one end of pulling connecting plate, put the one end of connecting plate at the side of another fixed frame, let the terminal of connecting plate laminate mutually with the fixture block of connecting plate side, through the terminal of pressing T type pressing plate, let T type pressing plate rotate in the inboard of link, let T type pressing plate apply a pulling force to the top of connecting plate, the connecting plate drives the fixed axle and rotates in the inside of T type pressing plate simultaneously, let the connecting plate self take place to deflect the back, adjust the connecting plate into the horizontality, let the inboard of fixed frame is hugged closely to the side tip of connecting plate, fix two backup pads fast, the centre gripping of rethread first splint and second splint is stable to freezing the pipe, when cutting freezing the pipe, fix freezing the pipe through the backup pad, and easy operation, quick installation of being convenient for is fixed.
The telescopic rod is extruded horizontally through the fixed frame, the telescopic rod slides to one side, the telescopic rod extrudes the top end of the positioning plate, the positioning plate is forced to shrink in the directional sliding plate, the telescopic rod slides into the directional sliding plate, the top end of the telescopic rod is flush with the outer side of the directional sliding plate, the directional sliding plate is convenient to slide, after the first clamping plate and the second clamping plate are stopped being pulled, the directional sliding plate stops sliding in the fixed frame, the acting force of the positioning plate is reduced in the directional sliding plate, the positioning plate pushes the telescopic rod to slide outwards, the top end of the telescopic rod is inserted into the fixed frame, the directional sliding plate is fixed, the clamping position can be flexibly adjusted according to the cutting position during use, the use is not required to be disassembled and fixed again, and the use convenience is improved.
The side end parts of the two support plates are aligned with the plurality of freezing pipes, the side end parts of the two support plates are clamped into the side end parts of the freezing pipes by pushing the two support plates, meanwhile, the cushion pad is clung to the surface of the freezing pipes, the positions of the two support plates are adjusted, the two support plates drive the fixing frames to be aligned with each other, one end of the connecting plate is pulled to place one end of the connecting plate at the side end of the other fixing frame, the tail end of the connecting plate is attached to a clamping block at the side end of the connecting plate, extrusion force on the outer sides of the freezing pipes in the fixing process is reduced, and deformation of the freezing pipes is prevented.
Drawings
FIG. 1 is a schematic view of the structure of a formation according to the present invention;
FIG. 2 is a schematic view of the structure of a freezing pipe according to the present invention;
FIG. 3 is a schematic view of the structure of an arc-shaped steel plate according to the present invention;
FIG. 4 is a schematic illustration of a freeze pipe construction of the present invention;
FIG. 5 is a schematic illustration of the construction of an outer wall of the present invention;
FIG. 6 is a schematic view of a liquid supply tube according to the present invention;
FIG. 7 is a schematic view of the structure of the clamping plate of the present invention;
FIG. 8 is a schematic view of the structure of the directional skateboard of the present invention.
Wherein: 1. a formation; 11. a freezing pipe; 12. a protection plate; 13. arc-shaped steel plates; 14. a liquid supply pipe; 15. a first clamping plate; 16. a second clamping plate; 17. a connecting frame; 18. a T-shaped pressing plate; 19. a fixed shaft; 21. a connecting plate; 22. a support plate; 23. a cushion pad; 24. a fixed frame; 25. a positioning plate; 26. a telescopic rod; 27. and (5) orienting the sliding plate.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present invention are obtained will become readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, a stratum freezing pipe anchored well wall structure comprises a stratum 1, at least two freezing pipes 11 are fixedly installed at the top end of the stratum 1, cement paste is filled in the freezing pipes 11 at the bottom of an excavation surface after the freezing pipes 11 in the excavation range are cut off during pit shaft excavation, arc-shaped steel plates 13 are welded on the tops of the freezing pipes 11 at the top of the excavation surface, arc-shaped steel plates 13 attached to the shape of the well wall are welded on the freezing pipes 11 at the top of the excavation surface, an outer well wall and an inner well wall are sequentially poured, steel arch anchor spraying support can be adopted for the outer wall according to the condition of the stratum 1, reinforced concrete cast-in-situ support can also be adopted for the freezing pipes 11 at the upper part of the excavation range, cement paste is filled in the freezing pipes 11 by using liquid supply pipes 14, the limit and support are arranged at the side ends of the freezing pipes 11, the arc-shaped steel plates 13 are fixedly installed at the bottom end of each freezing pipe 11, the freezing pipe 11 is internally provided with two support plates 22, and the two freezing pipes 14 are arranged on the circumference of each freezing pipe 11.
The top of every backup pad 22 all fixed mounting has fixed frame 24, the inside slidable mounting of every fixed frame 24 has directional slide 27, the inboard of every backup pad 22 all fixed mounting has two at least blotters 23, the top fixed mounting of two directional slide 27 has same first splint 15, the side that is located the opposite side of first splint 15 a plurality of freezing pipes 11 is provided with second splint 16, and first splint 15 is connected with second splint 16, through pulling up first splint 15 and second splint 16, the directional slide 27 of drive bottom upwards slides, let directional slide 27 upwards move in the inside of fixed frame 24, apply a horizontal extrusion through fixed frame 24 to telescopic link 26, let telescopic link 26 to one side slide, let telescopic link 26 extrude the top of locating plate 25, force locating plate 25 shrink in directional slide 27's inside, let telescopic link 26 slide into directional slide 27's inside, the top of telescopic link 26 flushes with directional slide 27's outside, the directional slide 27 is convenient for slide directional slide plate 27, stop pulling first splint 15 and second splint 16 back, through pulling up first splint 15 and second splint 16, through the inside of fixed frame 24 stop at the fixed position of fixed slide 25 at the inside of fixed frame 24, the telescopic link 26 is fixed position is realized at the fixed position of fixed slide 25, the telescopic link 25, the inside of fixed position is realized at the telescopic link 26, the fixed position of the telescopic link is realized, the fixed position is realized at the telescopic link 25, the inside of the fixed position of the telescopic link 25, the fixed position is realized.
The side end of each telescopic rod 26 is fixedly provided with two positioning plates 25, the side end of each fixed frame 24 is fixedly provided with a connecting frame 17, after the connecting plates 21 deflect, the connecting plates 21 are adjusted to be in a horizontal state, the side end of each connecting plate 21 is tightly attached to the inner side of each fixed frame 24, two support plates 22 are quickly fixed, the end of each connecting plate 21 is clamped by the first clamping plate 15 and the second clamping plate 16, the tail end of each connecting plate 21 is attached to a clamping block of the side end of each connecting plate 21, the T-shaped pressing plates 18 are pressed by the tail end of each T-shaped pressing plate 18 to rotate on the inner side of each connecting frame 17, the T-shaped pressing plates 18 apply a pulling force to the top ends of the connecting plates 21, meanwhile, the connecting plates 21 drive the fixing shafts 19 to rotate in the T-shaped pressing plates 18, the connecting plates 21 are adjusted to be in a horizontal state after the connecting plates 21 deflect, the side end of each connecting plate 21 is tightly attached to the inner side of each fixed frame 24, the freezing pipes 11 are stabilized by clamping the first clamping plates 15 and the second clamping plates 16, and the freezing pipes 11 are cut, the inner sides of the freezing pipes 11 are fixed by the support plates 22, and the fixing shafts are fixed by the fixing shafts 19, and the fixing shafts are arranged on the two sides of each T-shaped pressing plates 18, and each fixing shaft is installed on the fixing shaft 18.
Working principle:
firstly, during the process of drilling a freezing hole, cement slurry is filled in an annular space between a freezing pipe 11 and a stratum 1, so that water in the stratum 1 at the later stage is prevented from being conducted through the annular space, during the process of excavating a shaft, when the freezing pipe 11 in an excavating range is cut off, the cement slurry is filled in the freezing pipe 11 at the bottom of the excavating surface, an arc-shaped steel plate 13 is welded on the top of the freezing pipe, the arc-shaped steel plate 13 attached to the shape of a well wall is welded on the freezing pipe 11 at the top of the excavating surface, an outer layer well wall and an inner layer well wall are sequentially poured, the outer wall can be supported by adopting a steel arch frame anchor, or reinforced concrete cast-in-situ support can be adopted according to the condition of the stratum 1, after the construction of the well wall is finished, cement slurry is filled in the freezing pipe 11 at the upper part of the excavating range by utilizing a liquid supply pipe 14, the well wall is limited and supported, the well wall is anchored, and long-term stability of the well wall is ensured.
In the second step, in the process of cutting the freezing pipes 11, the two support plates 22 are moved first to align the side ends of the two support plates 22 with the plurality of freezing pipes 11, the side ends of the two support plates 22 are clamped into the side ends of the freezing pipes 11 by pushing the two support plates 22, meanwhile, the cushion pad 23 is tightly attached to the surface of the freezing pipes 11, the two support plates 22 drive the fixing frames 24 to align with each other by adjusting the positions of the two support plates 22, one end of the connecting plate 21 is placed at the side end of the other fixing frame 24 by pulling one end of the connecting plate 21, the tail end of the connecting plate 21 is attached to a clamping block at the side end of the connecting plate 21, the T-shaped pressing plate 18 is rotated at the inner side of the connecting frame 17 by pressing the tail end of the T-shaped pressing plate 18, let T type push down the board 18 apply a pulling force to the top of connecting plate 21, simultaneously connecting plate 21 drives fixed axle 19 and rotates in the inside of T type push down board 18, let connecting plate 21 self take place the deflection after, adjust connecting plate 21 to the horizontality, let the inboard of fixed frame 24 is hugged closely to the side tip of connecting plate 21, fix two backup pads 22 fast, the centre gripping of rethread first splint 15 and second splint 16, stabilize freezing pipe 11, when cutting freezing pipe 11, fix freezing pipe 11 through backup pad 22, simultaneously use first splint 15 and second splint 16 to fix the position of excision, also can carry out temporary fixation with the position of excision after the cutting is finished, prevent to cut to the later stage, freezing pipe 11 upper segment to take place the slope, influence the effect of cutting.
Simultaneously through upwards pulling first splint 15 and second splint 16, drive the directional slide 27 of bottom and upwards slide, let directional slide 27 upwards remove in the inside of fixed frame 24, apply a horizontal extrusion to telescopic link 26 through fixed frame 24, let telescopic link 26 slide to one side, let telescopic link 26 extrude the top of locating plate 25, force the locating plate 25 to shrink in directional slide 27's inside, let telescopic link 26 slide into directional slide 27's inside, the top of telescopic link 26 flushes with directional slide 27's outside, be convenient for slide directional slide 27, stop pulling first splint 15 and second splint 16 after, directional slide 27 stops to slide in fixed frame 24's inside, the effort at locating plate 25, locating plate 25 resets in directional slide 27's inside, locating plate 25 promotes telescopic link 26 outside and slides, insert the inside of fixed frame 24 with telescopic link 26's top, fix directional slide 27, can be according to the nimble adjustment clamping position of cutting position when using, need not dismantle again fixedly, increase the convenience of using.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a wall of a well structure of stratum freezing pipe anchor, includes stratum (1), its characterized in that, the top fixed mounting of stratum (1) has two at least freezing pipes (11), and is a plurality of the side of freezing pipe (11) all is provided with same guard plate (12), every the bottom of freezing pipe (11) all fixed mounting has arc steel sheet (13), every the inside of freezing pipe (11) all is provided with feed pipe (14), a plurality of the circumferential surface of freezing pipe (11) all is provided with two backup pads (22).
2. A casing structure for anchoring a freezing pipe in a ground according to claim 1, wherein a fixing frame (24) is fixedly installed at the top end of each supporting plate (22), a directional sliding plate (27) is slidably installed in each fixing frame (24), and at least two buffer pads (23) are fixedly installed on the inner side of each supporting plate (22).
3. A casing structure for anchoring a freeze pipe in a subterranean formation according to claim 2, wherein the top ends of two of said directional slides (27) are fixedly mounted with the same first clamping plate (15).
4. A casing structure for anchoring a freeze pipe in a subterranean formation according to claim 1, wherein a second clamping plate (16) is provided at the side ends of a plurality of said freeze pipes (11) located on the opposite and opposite sides of the first clamping plate (15), and the first clamping plate (15) is connected to the second clamping plate (16).
5. A borehole wall structure anchored by a freezing pipe of a ground formation according to claim 2, characterized in that the side ends of each of said directional sliding plates (27) are slidably fitted with telescopic rods (26).
6. A borehole wall structure anchored by a freezing pipe in a ground according to claim 5, characterized in that two positioning plates (25) are fixedly mounted at the side ends of each telescopic rod (26).
7. A borehole wall structure anchored by a freezing pipe in a ground according to claim 2, characterized in that a connecting frame (17) is fixedly installed at the side end of each of said fixing frames (24).
8. A borehole wall structure anchored by a freezing pipe in a ground according to claim 7, characterized in that a T-shaped pressing plate (18) is rotatably mounted inside each of said connection frames (17).
9. A borehole wall structure anchored by a formation freezing pipe according to claim 8, characterized in that a connection plate (21) is rotatably mounted on the inner side of each T-shaped pressing plate (18).
10. A borehole wall structure for anchoring a freezing pipe for strata according to claim 9, wherein each of the two side ends of each of the connection plates (21) is fixedly provided with a fixing shaft (19), and each of the fixing shafts (19) is connected with a T-shaped pressing plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310694242.4A CN116575919A (en) | 2023-06-13 | 2023-06-13 | Well wall structure anchored by stratum freezing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310694242.4A CN116575919A (en) | 2023-06-13 | 2023-06-13 | Well wall structure anchored by stratum freezing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116575919A true CN116575919A (en) | 2023-08-11 |
Family
ID=87537842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310694242.4A Pending CN116575919A (en) | 2023-06-13 | 2023-06-13 | Well wall structure anchored by stratum freezing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116575919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117505930A (en) * | 2024-01-04 | 2024-02-06 | 山东博科真空科技有限公司 | Screw vacuum pump rotor perforating device |
-
2023
- 2023-06-13 CN CN202310694242.4A patent/CN116575919A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117505930A (en) * | 2024-01-04 | 2024-02-06 | 山东博科真空科技有限公司 | Screw vacuum pump rotor perforating device |
| CN117505930B (en) * | 2024-01-04 | 2024-03-22 | 山东博科真空科技有限公司 | Screw vacuum pump rotor perforating device |
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