CN216041298U - Deformed steel for SMW construction method - Google Patents
Deformed steel for SMW construction method Download PDFInfo
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- CN216041298U CN216041298U CN202121634258.9U CN202121634258U CN216041298U CN 216041298 U CN216041298 U CN 216041298U CN 202121634258 U CN202121634258 U CN 202121634258U CN 216041298 U CN216041298 U CN 216041298U
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Abstract
The utility model relates to the technical field of underground engineering construction, in particular to deformed steel for an SMW construction method, which comprises H-shaped steel, a grouting pipe and a plugging piece, wherein the H-shaped steel comprises a hoisting end and an inserting end, the connecting line direction of the hoisting end and the inserting end is the length direction, and the grouting pipe is fixed on the H-shaped steel along the length direction; the bottom of the grouting pipe is provided with a pipe orifice, the plugging piece is sleeved on the pipe orifice and comprises an inverted triangular pyramid body, the top of the body is provided with a groove matched with the pipe orifice, and the outer surface of the body is provided with a plurality of layers of wedge-shaped bulges; according to the utility model, the plugging piece of the inverted triangular pyramid and the multi-layer wedge-shaped bulges on the outer surface of the plugging piece can reduce the insertion resistance when being inserted; when extracting H shaped steel and slip casting pipe after grout solidifies, the grout of solidifying can form mutual lock with wedge-shaped arch, and then when realizing pulling out H shaped steel, makes things convenient for shutoff piece and slip casting pipe to break away from back slip casting.
Description
Technical Field
The utility model relates to the technical field of underground engineering construction, in particular to deformed steel for an SMW construction method.
Background
The reinforced cement-soil mixing wall construction method (SMW construction method for short) is characterized by that it utilizes multi-shaft deep mixer (TRD/CSM equipment) to make on-site drilling and cutting, at the same time injects cement paste, before the cement paste is not solidified, the section steel is inserted into the mixing pile wall, so that the section steel and cement paste can be formed into the composite underground continuous wall body which can retain soil and block water. After the construction is finished, the section steel in the wall body needs to be pulled out and recycled, so that the waste of steel is reduced, and after the section steel is pulled out, a cavity which is the same as the section steel is left in the wall body, and cement paste needs to be continuously filled into the cavity.
Chinese patent with publication number CN209260711U discloses a synchronous filling device for removing piles in an SMW construction method, which comprises an H-shaped steel support member inserted into a cement soil mixing pile of the pile in the SMW construction method and left and right grouting steel pipes vertically welded at two sides of an axilla corner of the H-shaped steel support member, wherein the left and right grouting steel pipes are close to the joint of a wing plate and a web plate of the H-shaped steel support member and extend from the top end of the H-shaped steel support member to the bottom end of the H-shaped steel support member; the upper pipe orifices of the two grouting steel pipes are provided with screw thread plugs, and the lower pipe orifices are provided with rubber plugs.
According to the SMW construction method pile pulling and filling device, the lower ends of the left grouting steel pipe and the right grouting steel pipe are plugged through the rubber plugs, so that cement slurry of a cement wall is prevented from entering the left grouting steel pipe and the right grouting steel pipe before solidification, and the left grouting steel pipe and the right grouting steel pipe are further prevented from being plugged. However, the left and right grouting steel pipes need to be deep into the pile of the construction method by more than ten meters, and the pressure of cement slurry on the rubber plugs makes the rubber plugs easy to deform and shrink into the left and right grouting steel pipes, so that part of cement is solidified at the lower ends of the left and right grouting steel pipes.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide the deformed steel for the SMW construction method, which is more labor-saving in pulling out and avoids grouting failure.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the deformed steel for the SMW construction method comprises H-shaped steel, a grouting pipe and a plugging piece, wherein the H-shaped steel comprises a hoisting end and an inserting end, the connecting line direction of the hoisting end and the inserting end is the length direction, and the grouting pipe is fixed on the H-shaped steel along the length direction;
the bottom of slip casting pipe has the mouth of pipe, the shutoff piece cover is established on the mouth of pipe, the shutoff piece is including the body of falling the triangular pyramid, be provided with on the top of body with mouth of pipe complex recess, be provided with the wedge-shaped arch of multilayer on the surface of body.
The utility model has the beneficial effects that: the plugging piece of the inverted triangular pyramid and the multilayer wedge-shaped bulges on the outer surface of the plugging piece can reduce the insertion resistance and facilitate insertion when being inserted, and meanwhile, the separation of the plugging piece is avoided when the plugging piece is inserted due to the matching of the groove and the pipe orifice; when extracting H shaped steel and slip casting pipe after grout solidifies, the grout of solidifying can form mutual lock with wedge-shaped arch, and then when realizing pulling out H shaped steel, makes things convenient for shutoff piece and slip casting pipe to break away from back slip casting, avoids the condition of unable slip casting to take place.
Drawings
Fig. 1 is a schematic view illustrating an application of a deformed steel for an SMW process according to the present invention;
fig. 2 is a plan view illustrating a deformed steel for an SMW process according to an embodiment of the present invention;
fig. 3 is a front view illustrating a deformed steel for an SMW process according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a profiled bar plugging member for an SMW process according to an embodiment of the present invention;
description of reference numerals: 1. h-shaped steel; 11. hoisting the end; 12. an insertion end; 13. a circulation channel; 14. an outlet; 15. an inlet; 16. hoisting holes; 2. a grouting pipe; 3. a blocking member; 31. a groove; 32. and (4) protruding.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 4, the deformed steel for the SMW process of the present invention includes an H-shaped steel 1, a grouting pipe 2 and a plugging member 3, where the H-shaped steel 1 includes a hoisting end 11 and an insertion end 12, a connection line direction of the hoisting end 11 and the insertion end 12 is a length direction, and the grouting pipe 2 is fixed on the H-shaped steel 1 along the length direction;
the bottom of slip casting pipe 2 has the mouth of pipe, 3 covers of shutoff piece are established on the mouth of pipe, shutoff piece 3 is including the body of falling the triangular pyramid, be provided with on the top of body with mouth of pipe complex recess 31, be provided with the wedge-shaped arch 32 of multilayer on the surface of body.
As can be seen from the above description, by the inverted triangular pyramid-shaped plugging member 3 and the multi-layer wedge-shaped protrusions 32 on the outer surface thereof, the insertion resistance can be reduced during insertion, so that the insertion is facilitated, and the engagement of the grooves 31 with the nozzle prevents the plugging member 3 from being disengaged during insertion; when extracting H shaped steel 1 and slip casting pipe 2 after grout solidifies, the grout of solidification can form mutual lock with wedge-shaped arch 32, and then when realizing pulling out H shaped steel 1, makes things convenient for shutoff piece 3 and slip casting pipe 2 to break away from back slip casting, avoids the condition of unable slip casting to take place.
Further, a circulating channel 13 is arranged in the H-shaped steel 1, the channel comprises an outlet 14 and an inlet 15, and the outlet 14 and the inlet 15 are arranged on the hoisting end 11.
As can be seen from the above description, through the circulation channel 13, before grouting, coolant/liquid can be injected through the circulation channel 13, so that the H-beam 1 and the grouting pipe 2 are cooled and contracted, and are convenient to pull out due to the reduction of the volume, and meanwhile, the pipe orifice of the grouting pipe 2 and the groove 31 of the plugging member 3 can be separated or loosened, so as to further facilitate pulling out; the temperatures of the H-shaped steel 1 and the grouting pipe 2 can be controlled through the circulating channel 13, and the solidification speed of cement paste is accelerated and slowed down as required, so that the control of the solidification speed is realized; the grouting pipes 2 are fixed on the H-shaped steel 1 along the length direction, so that structural complementation can be formed, the mechanical property of the H-shaped steel 1 is enhanced, and the mechanical property of the deformed steel cannot be reduced under the condition that the circulating channel 13 is formed.
Furthermore, the outlet 14, the inlet 15 and the grouting pipe 2 are respectively provided with a quick connector.
From the above description, through the setting of quick-operation joint, can realize the quick-operation connection with other auxiliary device, for example refrigerant liquid circulator, slip casting machine, promote work efficiency.
Further, the body is a magnet, and the material of the pipe orifice is metal capable of being adsorbed by the magnet.
As can be seen from the above description, the magnet can be adsorbed on the pipe orifice, so that the separation in the hoisting process is avoided.
Further, the surfaces of the H-shaped steel 1 and the grouting pipe 2 are provided with friction reducers.
As can be seen from the above description, the friction resistance can be reduced and the work efficiency can be improved by the friction reducer.
Further, the hoisting end 11 is provided with a hoisting hole 16, and the hoisting hole 16 is positioned between the outlet 14 and the inlet 15 of the circulating channel 13.
Example one
A deformed steel for an SMW construction method comprises H-shaped steel, a grouting pipe and a plugging piece, wherein the H-shaped steel comprises a hoisting end and an inserting end, the connecting line direction of the hoisting end and the inserting end is the length direction, and the grouting pipe is fixed on the H-shaped steel along the length direction;
the bottom of slip casting pipe has the mouth of pipe, the shutoff piece cover is established on the mouth of pipe, the shutoff piece is including the body of falling the triangular pyramid, be provided with on the top of body with mouth of pipe complex recess, be provided with the wedge-shaped arch of multilayer on the surface of body.
A circulating channel is arranged in the H-shaped steel and comprises an outlet and an inlet, and the outlet and the inlet are arranged on the hoisting end.
And the outlet, the inlet and the grouting pipe are respectively provided with a quick connector.
The body is the magnet, orificial material is the metal that can be adsorbed by the magnet.
The surfaces of the H-shaped steel and the grouting pipe are provided with friction reducers, and the friction reducers are vaseline.
The hoisting end is provided with a hoisting hole, and the hoisting hole is positioned between the outlet and the inlet of the circulating channel.
Example two
A deformed steel for an SMW construction method comprises H-shaped steel, a grouting pipe and a plugging piece, wherein the H-shaped steel comprises a hoisting end and an inserting end, the connecting line direction of the hoisting end and the inserting end is the length direction, and the grouting pipe is fixed on the H-shaped steel along the length direction;
the bottom of slip casting pipe has the mouth of pipe, the shutoff piece cover is established on the mouth of pipe, the shutoff piece is including the body of falling the triangular pyramid, be provided with on the top of body with mouth of pipe complex recess, be provided with the wedge-shaped arch of multilayer on the surface of body.
A circulating channel is arranged in the H-shaped steel and comprises an outlet and an inlet, and the outlet and the inlet are arranged on the hoisting end.
The surfaces of the H-shaped steel and the grouting pipe are provided with friction reducers, and the friction reducers are polytetrafluoroethylene.
The hoisting end is provided with a hoisting hole, and the hoisting hole is positioned between the outlet and the inlet of the circulating channel.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (6)
1. The deformed steel for the SMW construction method is characterized by comprising H-shaped steel, a grouting pipe and a plugging piece, wherein the H-shaped steel comprises a hoisting end and an insertion end, the connecting line direction of the hoisting end and the insertion end is the length direction, and the grouting pipe is fixed on the H-shaped steel along the length direction;
the bottom of slip casting pipe has the mouth of pipe, the shutoff piece cover is established on the mouth of pipe, the shutoff piece is including the body of falling the triangular pyramid, be provided with on the top of body with mouth of pipe complex recess, be provided with the wedge-shaped arch of multilayer on the surface of body.
2. A deformed steel for an SMW process according to claim 1, wherein a circulation channel is provided in the H-shaped steel, the channel comprising an outlet and an inlet, the outlet and the inlet being provided on the hoisting end.
3. A deformed steel for an SMW process according to claim 2, wherein quick couplings are provided to the outlet, the inlet and the grout pipe, respectively.
4. A deformed steel for an SMW process according to claim 1, wherein the body is a magnet, and the nozzle is made of a metal capable of being attracted by the magnet.
5. A deformed steel for SMW process according to claim 1, wherein the H-shaped steel and the slip pipe have a friction reducing agent on the surface thereof.
6. A deformed steel for an SMW process according to claim 1, wherein the lifting end has a lifting hole thereon, and the lifting hole is located between an outlet and an inlet of the circulation passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634258.9U CN216041298U (en) | 2021-07-19 | 2021-07-19 | Deformed steel for SMW construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634258.9U CN216041298U (en) | 2021-07-19 | 2021-07-19 | Deformed steel for SMW construction method |
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| Publication Number | Publication Date |
|---|---|
| CN216041298U true CN216041298U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121634258.9U Active CN216041298U (en) | 2021-07-19 | 2021-07-19 | Deformed steel for SMW construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837168A (en) * | 2022-04-20 | 2022-08-02 | 浙江交工集团股份有限公司 | Comprehensive pipe gallery enclosure wall and construction method thereof |
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2021
- 2021-07-19 CN CN202121634258.9U patent/CN216041298U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837168A (en) * | 2022-04-20 | 2022-08-02 | 浙江交工集团股份有限公司 | Comprehensive pipe gallery enclosure wall and construction method thereof |
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