CN214363455U - Prefabricated stock of expansion type - Google Patents
Prefabricated stock of expansion type Download PDFInfo
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- CN214363455U CN214363455U CN202023296346.0U CN202023296346U CN214363455U CN 214363455 U CN214363455 U CN 214363455U CN 202023296346 U CN202023296346 U CN 202023296346U CN 214363455 U CN214363455 U CN 214363455U
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- ball valve
- anchor rod
- prefabricated
- bag
- spring
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Abstract
The utility model discloses an expansion type prefabricated anchor rod, which belongs to the technical field of anchor rod construction, and comprises an anchor rod, an end part bag, a side bag, an end plate, a jacking plate, a prefabricated part and a ball valve system, wherein the ball valve system comprises a ball valve, a shell, a slurry passage, a spring fixing frame and a spring, and the ball valve system is divided into a first-stage ball valve, a second-stage ball valve and a third-stage ball valve; the anchor rod tip has the tip bag through the clamp connection, the top is advanced board and is passed through welded connection with the anchor rod, the end plate passes through welded connection with the anchor rod, the anchor rod tip welding has the second grade ball valve, one-level ball valve and anchor rod, the end plate, prefabricated component all passes through welded connection, the prefabricated component passes through bolted connection with the end plate with the help of its inside prestressing tendons, install tertiary ball valve in the prefabricated component, the side bag passes through the clamp to be fixed on the end plate, the anchor rod reservation inside the prefabricated component has the thick liquid hole. The utility model discloses make the consolidation body in the sack be difficult for receiving the corruption influence, make the bearing capacity of peripheral soil body improve.
Description
Technical Field
The utility model relates to an anchor rod construction technical field, in particular to expand prefabricated anchor rod of size.
Background
With the increasing price of land and the proliferation of automobiles, cities develop underground spaces on a large scale. Underground constructions have reached multiple levels and the safety of underground works is becoming more and more important. The traditional anchor rod is widely applied to projects such as water conservancy and hydropower, industrial and civil construction, traffic and municipal engineering and the like, and the problems that a steel bar which is easy to crack after a cement protective layer is stressed is corroded, the anchoring force is small, the quality is not easy to control and the like exist particularly when the traditional anchor rod is applied to soil layers.
At present, the anti-floating of the building foundation is mostly adopted in China: 1) anti-floating reinforced concrete cast-in-place pile; 2) anti-floating anchor (tension type). The anti-floating pile belongs to a conventional method, has a mature process and can be circulated with experience, but the material adopts a reinforcement cage and concrete, so the investment is large, and the tensile property of the concrete is poor. The anti-pulling force that anti-floating anchor rod (pulling force type) provided usually is less, to the higher engineering of anti-floating design bearing capacity, traditional anchor rod has can not satisfy engineering construction needs effectively, and the grout body of stiff end easily appears the stretch-draw crack, and corrosion resistance is poor, and intensity can not guarantee.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem who exists among the prior art, the utility model provides an expand prefabricated stock of size has overcome the not enough of prior art. The bearing capacity of the anchoring section is increased by arranging the end part bag and the side edge bag, a consolidated body in the bag is not easily affected by corrosion under the protection of the bag, in addition, the bag body extrudes and expands a peripheral soil body, and the soil body reduces the porosity of the peripheral soil body through the extrusion and consolidation actions, improves the density and improves the bearing capacity; through being divided into the tertiary with the ball valve system, realized that the thick liquid fills from tip to drill way order, be favorable to the gaseous discharge in the anchor section, slip casting finishes the back in addition, and the thick liquid can not be through ball valve system backward flow play bag, has guaranteed that the thick liquid volume in that area.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an expanded prefabricated anchor rod is characterized by comprising an anchor rod, an end part bag, a side edge bag, an end plate, a jacking plate, a prefabricated part and a ball valve system, wherein the ball valve system comprises a ball valve, a shell, a slurry passage, a spring fixing frame and a spring, and is divided into three stages, namely a first-stage ball valve, a second-stage ball valve and a third-stage ball valve; the anchor rod tip has the tip bag through the clamp connection, and the top is advanced board and is passed through welded connection with the anchor rod, and the end plate passes through welded connection with the anchor rod, and the anchor rod tip welding has the second grade ball valve, and one-level ball valve all passes through welded connection with anchor rod, end plate, prefabricated component, and the prefabricated component passes through bolted connection with the end plate with the help of its inside prestressing tendons, installs tertiary ball valve in the prefabricated component, and the side bag passes through the clamp to be fixed on the end plate, has the thick liquid hole at the inside stock reservation of prefabricated component, the spring mount welding is on the shell, installs the spring in the spring mount, and spring one end is connected on the spring mount, and one end is connected on the ball valve, and the space between shell and the spring mount is the thick liquid passageway, and shell and spring mount welding department reserve between having out the thick liquid hole with the shell.
Preferably, the tensile strength of the end part bag is the same as that of the side part bag, the grouting pressure borne by the end part bag is larger than the grouting pressure required by opening the primary ball valve, and the diameter of the end part bag is larger than that of the jacking plate and the prefabricated part after the end part bag is expanded.
Preferably, the prefabricated part is a concrete hollow round pipe or square pipe, the outer surface and the inner surface of the prefabricated part are both provided with a layer of steel pipe, and the length of the prefabricated part is 1 m-1.5 m.
Preferably, the pressing force of the spring in the ball valve system is a first-stage ball valve, a second-stage ball valve and a third-stage ball valve in sequence from high to low.
The utility model discloses the beneficial technological effect who brings:
the bearing capacity of the anchoring section is increased by arranging the end part bag and the side edge bag, a consolidated body in the bag is not easily affected by corrosion under the protection of the bag, in addition, the bag body extrudes and expands a peripheral soil body, and the soil body reduces the porosity of the peripheral soil body through the extrusion and consolidation actions, improves the density and improves the bearing capacity; through being divided into the tertiary with the ball valve system, realized that the thick liquid fills from tip to drill way order, be favorable to the gaseous discharge in the anchor section, slip casting finishes the back in addition, and the thick liquid can not be through ball valve system backward flow play bag, has guaranteed that the thick liquid volume in that area.
Drawings
Fig. 1 is the utility model relates to a sketch map is dissected to structure of expanding prefabricated stock of type.
Fig. 2 is the structure of ball valve system dissects the schematic diagram in the prefabricated stock of expansion type of the utility model.
Wherein, 1-anchor rod, 2-end part pocket bag, 3-side pocket bag, 4-end plate, 5-jacking plate, 6-prefabricated part, 7-first-stage ball valve, 8-second-stage ball valve, 9-third-stage ball valve, 11-ball valve, 12-shell, 13-grout channel, 14-spring fixing frame, 15-spring and 16-grout outlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
example 1:
as shown in fig. 1-2, an expanded prefabricated anchor rod is characterized by comprising an anchor rod 1, an end part bag 2, a side edge bag 3, an end plate 4, a jacking plate 5, a prefabricated part 6 and a ball valve system, wherein the ball valve system comprises a ball valve 11, a shell 12, a slurry passage 13, a spring fixing frame 14 and a spring 15, and is divided into three stages, namely a first-stage ball valve 7, a second-stage ball valve 8 and a third-stage ball valve 9; the end part of the anchor rod 1 is connected with an end part bag 2 through a clamping hoop, the jacking plate 5 is connected with the anchor rod 1 through welding, the end plate 4 is connected with the anchor rod 1 through welding, the end part of the anchor rod 1 is welded with a secondary ball valve 8, the primary ball valve 7 is connected with the anchor rod 1, the end plate 4 and the prefabricated part 6 through welding, the prefabricated part 6 is connected with the end plate 4 through bolts by means of internal prestressed tendons, a tertiary ball valve 9 is installed in the prefabricated part 6, and the side bag 3 is fixed on the end plate 4 through the clamping hoop, a slurry hole is reserved in the anchor rod 1 in the prefabricated part 6, the spring fixing frame 14 is welded on the shell 12, the spring 15 is installed in the spring fixing frame 14, one end of the spring 15 is connected to the spring fixing frame 14, the other end of the spring 15 is connected to the ball valve 11, a gap between the shell 12 and the spring fixing frame 14 is a slurry channel 13, and a slurry outlet hole 16 is reserved between the welding position of the shell 12 and the spring fixing frame 14 and the shell 12.
Preferably, the end bladder 2 has the same tensile strength as the side bladder 3, the bladder is subjected to a grouting pressure greater than that required for opening the primary ball valve 7, and the end bladder 2 has an expanded diameter greater than that of the jacking plate 5 and the prefabricated part 6.
Preferably, the prefabricated part 6 is a concrete hollow round pipe or a concrete hollow square pipe, a layer of steel pipe is arranged on the outer surface and the inner surface of the prefabricated part 6, and the length of the prefabricated part 6 is 1 m-1.5 m.
Preferably, the pressing force of the spring 15 in the ball valve system is a first-stage ball valve 7, a second-stage ball valve 8 and a third-stage ball valve 9 in sequence from high to low.
Example 2:
adopt the technical scheme of the utility model to carry out the further introduction of principle and application method.
As shown in fig. 1-2, at first, the construction drilling, after the drilling construction, through the jacking device top on the board 5 of advancing, transfer the pocket type stock to the design depth, later toward stock 1 intussuseption pump sending cement thick liquid, cement thick liquid at first enters into tip bag 2 through tertiary ball valve 9, after the completion of tip bag 2 packing, the thick liquid enters into side bag 3 through second grade ball valve 8, after the completion of side bag 3 packing, the thick liquid overflows through tertiary ball valve 9, when the thick liquid flows out the drill way, stop the slip casting, one-level ball valve 7, second grade ball valve 8, tertiary ball valve 9 closes simultaneously, the thick liquid does not take place the backward flow in tip pocket and the 3 interior thick liquids of side bag, the construction is ended.
The utility model relates to an expand prefabricated stock of size, through setting up tip bag and side bag, increased the bearing capacity of anchor section, through the protection of bag, the consolidation body in the bag is difficult to be influenced by the corruption, peripheral soil body is crowded to expand in addition the utricule, and the soil body makes the porosity of peripheral soil body descend through crowded close and consolidation action, and density improves, and the bearing capacity improves; through being divided into the tertiary with the ball valve system, realized that the thick liquid fills from tip to drill way order, be favorable to the gaseous discharge in the anchor section, slip casting finishes the back in addition, and the thick liquid can not be through ball valve system backward flow play bag, has guaranteed that the thick liquid volume in that area.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (4)
1. An expanded prefabricated anchor rod is characterized by comprising an anchor rod, an end part bag, a side edge bag, an end plate, a jacking plate, a prefabricated component and a ball valve system, wherein the ball valve system comprises a ball valve, a shell, a slurry channel, a spring fixing frame, a spring and a slurry outlet hole, and is divided into three stages, namely a first-stage ball valve, a second-stage ball valve and a third-stage ball valve; the anchor rod tip has the tip bag through the clamp connection, and the top is advanced board and is passed through welded connection with the anchor rod, and the end plate passes through welded connection with the anchor rod, and the anchor rod tip welding has the second grade ball valve, and one-level ball valve all passes through welded connection with anchor rod, end plate, prefabricated component, and the prefabricated component passes through bolted connection with the end plate with the help of its inside prestressing tendons, installs tertiary ball valve in the prefabricated component, and the side bag passes through the clamp to be fixed on the end plate, has the thick liquid hole at the inside stock reservation of prefabricated component, the spring mount welding is on the shell, installs the spring in the spring mount, and spring one end is connected on the spring mount, and one end is connected on the ball valve, and the space between shell and the spring mount is the thick liquid passageway, and shell and spring mount welding department reserve between having out the thick liquid hole with the shell.
2. The expanding prefabricated anchor rod of claim 1, wherein the end bladder has the same tensile strength as the side bladder, the bladder is subjected to a grouting pressure higher than that required for opening the primary ball valve, and the diameter of the expanded end bladder is larger than that of the jacking plate and the prefabricated member.
3. The expanding type prefabricated anchor rod according to claim 1, wherein the prefabricated part is a concrete hollow round pipe or a concrete square pipe, a layer of steel pipe is arranged on the outer surface and the inner surface of the prefabricated part, and the length of the prefabricated part is 1-1.5 m.
4. An expansion type prefabricated anchor rod according to claim 1, wherein the pressing force of the spring in the ball valve system is a first-stage ball valve, a second-stage ball valve and a third-stage ball valve in sequence from high to low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023296346.0U CN214363455U (en) | 2020-12-31 | 2020-12-31 | Prefabricated stock of expansion type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023296346.0U CN214363455U (en) | 2020-12-31 | 2020-12-31 | Prefabricated stock of expansion type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214363455U true CN214363455U (en) | 2021-10-08 |
Family
ID=77951382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023296346.0U Active CN214363455U (en) | 2020-12-31 | 2020-12-31 | Prefabricated stock of expansion type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214363455U (en) |
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2020
- 2020-12-31 CN CN202023296346.0U patent/CN214363455U/en active Active
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