Anchoring cable grouting system
By connecting two grouting pipes to the control valve assembly, and combining a buffer box and a cut-off plate, the problems of high cost, poor adaptability, and incomplete valve closure in existing anchor cable grouting systems are solved, achieving a highly efficient and low-cost secondary grouting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 5 ENGINEERING GROUP CO LTD GUIZHOU SUBSIDIARY
- Filing Date
- 2023-11-06
- Publication Date
- 2026-05-19
AI Technical Summary
The existing anchor cable forming process suffers from problems such as high cost of secondary grouting, mismatch between grouting pipe and component size, impact of pipeline cut-off when switching grouting, and inability of valve plate to be completely closed, and there is a lack of effective solutions.
Two grouting pipes are alternately connected to a control valve assembly. Combined with the design of a buffer box and a cut-off plate, secondary grouting is achieved by opening and closing the valve ball and valve plate. The buffer box is used to buffer and guide the grout, and the residual grout is discharged through the discharge channel. A series of components are designed to alternately close the buffer box opening.
It enables secondary grouting using a single set of equipment, reduces costs, solves the problem of matching the size of the grouting pipe and components, ensures effective valve plate closure, and simplifies the grouting process.
Smart Images
Figure CN117266200B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of slope protection, and more specifically to an anchor cable grouting system. Background Technology
[0002] With continuous urban development and increasingly dense urban infrastructure construction, flat areas are being exhausted, forcing new buildings to be situated in complex terrain such as slopes. This makes the protection of existing slopes increasingly important. To date, slope support and reinforcement measures include retaining walls, soil nailing walls, anti-slide piles, and prestressed anchor cables. Under certain specific engineering or geological conditions, anti-slide piles offer significant advantages over other support methods: achieving high anti-slide capacity with less construction work; flexible pile placement as needed; simpler construction equipment, convenient and safe construction, and shorter construction period; and direct verification of geological conditions during pile hole excavation. With the diversification of building forms, some projects require further excavation near existing slopes to create temporary foundation pits, while simultaneously demanding strict control over slope deformation. Traditional simple row-type anti-slide pile support is insufficient; the combined use of anti-slide piles and anchor cables can better improve support capacity.
[0003] In practical engineering work, the following problems exist:
[0004] I. In the existing anchor cable forming process, secondary grouting technology is required. Generally speaking, secondary grouting is carried out through two pipelines and two sets of equipment, such as two pumps and delivery pipes, which is costly.
[0005] Second, in the existing grouting technology, the diameter of the grouting pipe in the anchor cable hole is generally not too large. However, the grout is different from water, and the preparation and transportation processes are not suitable for pipes that are too small. Furthermore, the supporting components such as pumps are not suitable for being too small in size. In other words, there is a compatibility problem between the size of the grouting pipe and the size of other components.
[0006] Third, in the existing technology of secondary grouting, if a single device is used for switching to secondary grouting, the pipeline needs to be cut off during the switching process. This problem needs to be solved.
[0007] Fourth, in the existing plate-type shut-off system, if the medium to be shut off is slurry, the slurry is relatively viscous, which will affect the shut-off process, thus preventing the valve plate from closing completely.
[0008] Fifth, the replacement parts in the existing technology require different solutions for different applications, and there is no good solution for the field of anchor cable grouting equipment. Summary of the Invention
[0009] To overcome the above problems, the present invention proposes a solution that addresses multiple problems simultaneously.
[0010] The technical solution adopted by this invention to solve its technical problem is: an anchor cable grouting system, which injects grout into the anchor cable hole through two grouting pipes, and the two grouting pipes are alternately connected to a control valve assembly to achieve secondary grouting; the control valve assembly includes a valve body, a drive component, a valve ball, a valve pipe, a flange, a connecting pipe, a buffer box, and a connecting component; the valve body is provided with a valve ball, and the drive component drives the valve ball to rotate to achieve opening and closing; the valve body is connected to a valve pipe, and the valve pipe is connected to a connecting pipe through a flange; the connecting pipe includes an upstream connecting pipe and a downstream connecting pipe.
[0011] The buffer box includes a box body, a seat block, a guide plate, an inlet, an outlet, an upper hole, a valve plate, a plug, a crossbar, and a locking ring; a downstream pipe of the valve is connected to the inlet of the buffer box, and two grouting pipes are alternately connected to the outlet of the buffer box through the connector; a guide plate is provided inside the box body, and the guide plate is inclined; the seat block is provided inside the side wall of the box body, and the seat block is provided with a groove and a discharge channel; the seat block is located above the guide plate, and the outlet is located above the seat block; the upper hole is provided on the top cover of the box body, and the upper hole is a square hole.
[0012] The plug includes a T-shaped body and a first connector. The first connector is located on the top of the T-shaped body and has a first hole. The valve plate includes a main plate, a horizontal plate, and a second connector. The horizontal plate is located on the top of the main plate, and the second connector is located on the top of the horizontal plate and has a second hole. The locking ring is fixedly installed on the top of the housing.
[0013] In the first state, the T-shaped body of the plug is disposed in the upper hole, and the crossbar passes through the locking ring and the first hole; in the second state, the main plate of the valve plate extends into the buffer box through the upper hole to close the outlet, the lower end of the main plate extends into the groove, and the discharge channel extends in the seat block, with one end extending to the side of the main plate; at the same time, the horizontal plate is fitted in the upper hole, and the crossbar passes through the locking ring and the second hole.
[0014] Preferably, the upper hole has a T-shaped cross-section, and the locking ring has an inverted concave shape.
[0015] Preferably, the valve plate is provided with a sealing element.
[0016] Preferably, the emission channel is horizontally positioned.
[0017] Preferably, the discharge channel extends at an angle.
[0018] Preferably, the lower end of the valve plate has a pointed structure to better cut the slurry and achieve closure.
[0019] Preferably, the two grouting pipes have the same diameter.
[0020] Preferably, the diameter of the connecting pipe is larger than the diameter of the grouting pipe.
[0021] Preferably, a delivery pump is provided upstream of the control valve assembly.
[0022] Preferably, the delivery pump is connected to the flange via an upstream pipe connection to the valve.
[0023] The beneficial effects of this invention are:
[0024] I. Regarding the first point raised in the background technology, grouting of two grouting pipes is achieved using a set of pumps, pipes, and valve assemblies, and the two grouting pipes can be connected to the same set of valve assemblies through connecting joints.
[0025] Second, regarding the second point raised in the background technology, a buffer box is used. One side of the buffer box is connected to a large-diameter valve pipe, and the other side is connected to a small-diameter grouting pipe. The space inside the box can achieve buffering and guidance. At the same time, the buffer box can be switched to connect two different grouting pipes through a connecting joint.
[0026] Thirdly, regarding the third point raised in the background technology, the grouting path is closed by a valve ball. When the valve ball is closed, in order to prevent the grout in the buffer tank from flowing out, a cut-off plate is set at the outlet of the buffer tank. The cut-off plate cooperates with the groove inside the seat to close the outlet. After the cut-off plate is closed, the two grouting pipes can be switched.
[0027] Fourthly, regarding the fourth point raised in the background technology, a discharge channel is provided on the seat that mates with the cutting element. When the cutting element is closed, the residual slurry in the tank can be discharged through the discharge channel. In addition, the discharge channel is set horizontally or slightly inclined, and when closed, one end of the discharge channel corresponds to the side of the valve plate. That is, the conventional vertical discharge channel is changed to horizontal or inclined, so that if there is fluid pressure, the surface acting is the side of the valve plate, and the valve plate will not be pushed from bottom to top.
[0028] Fifth, in response to the fifth point raised in the background technology, the valve plate and the plug are designed as a series of components that can be used interchangeably to alternately close the upper opening of the buffer box. Both the valve plate and the plug include a T-shaped structure and a connecting part at the upper end. The connecting part allows the locking rod to pass through to achieve locking, thus constructing a series of replacement parts. Attached Figure Description
[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0030] Figure 1 This is a cross-sectional view of the support structure of the present invention.
[0031] Figure 2 This is a plan view of the support structure of the present invention.
[0032] Figure 3This is a plan view of the first part of the grouting module of the present invention.
[0033] Figure 4 This is a plan view of the second part of the grouting module of the present invention.
[0034] Figure 5 This is a side view of the buffer box of the present invention.
[0035] Figure 6 This is a schematic diagram of the valve plate of the present invention.
[0036] The reference numerals in the figure are as follows:
[0037] 1. Rear row of anti-slide piles; 2. Middle row of anti-slide piles; 3. Front row of anti-slide piles; 4. Rear row of capping beams; 5. Middle row of capping beams; 6. Front row of capping beams; 7. Top slab between piles in the middle and front rows; 8. Bottom slab between piles in the middle and front rows; 9. Upper row of anchor heads; 10. Upper row of waist beams; 11. Lower row of anchor heads; 12. Lower row of waist beams; 13. Prestressed anchor cables; 14. Anchor cable anchorage section; 15. Plain concrete filling; 16. Design ground elevation; 17. Design ground level; 18. Pile-to-pile baffle; 19. Valve body; 20. Drive component, 21, valve pipe, 22, flange, 23, connecting pipe, 24, buffer box, 25, connector, 26, grouting pipe, 27, guide plate, 28, box body, 29, valve plate, 30, seat block, 31, groove, 32, discharge channel, 33, outlet, 34, upper hole, 35, plug, 36, first connector, 37, first hole, 38, crossbar, 39, locking ring, 40, main plate, 41, horizontal plate, 42, second hole, 43, second connector. Detailed Implementation
[0038] As shown in the figure: An anchor cable grouting system injects grout into the anchor cable hole through two grouting pipes. The two grouting pipes are alternately connected to a control valve assembly to achieve secondary grouting. The control valve assembly includes a valve body, a drive component, a valve ball, a valve pipe, a flange, a connecting pipe, a buffer box, and a connector. The valve ball is installed in the valve body. The drive component drives the valve ball to rotate to achieve opening and closing. The valve pipe is connected to the valve body. The valve pipe is connected to the connecting pipe through the flange. The connecting pipe includes an upstream connecting pipe and a downstream connecting pipe.
[0039] The buffer box includes a box body, a seat block, a guide plate, an inlet, an outlet, an upper hole, a valve plate, a plug, a crossbar, and a locking ring; a downstream pipe of the valve is connected to the inlet of the buffer box, and two grouting pipes are alternately connected to the outlet of the buffer box through the connector; a guide plate is provided inside the box body, and the guide plate is inclined; the seat block is provided inside the side wall of the box body, and the seat block is provided with a groove and a discharge channel; the seat block is located above the guide plate, and the outlet is located above the seat block; the upper hole is provided on the top cover of the box body, and the upper hole is a square hole.
[0040] The plug includes a T-shaped body and a first connector. The first connector is located on the top of the T-shaped body and has a first hole. The valve plate includes a main plate, a horizontal plate, and a second connector. The horizontal plate is located on the top of the main plate, and the second connector is located on the top of the horizontal plate and has a second hole. The locking ring is fixedly installed on the top of the housing.
[0041] In the first state, the T-shaped body of the plug is disposed in the upper hole, and the crossbar passes through the locking ring and the first hole; in the second state, the main plate of the valve plate extends into the buffer box through the upper hole to close the outlet, the lower end of the main plate extends into the groove, and the discharge channel extends in the seat block, with one end extending to the side of the main plate; at the same time, the horizontal plate is fitted in the upper hole, and the crossbar passes through the locking ring and the second hole.
[0042] As shown in the figure: the upper hole has a T-shaped cross-section, and the locking ring has a concave shape. A sealing element is provided on the valve plate. The discharge channel is horizontally positioned. The discharge channel extends at an angle. The lower end of the valve plate forms a sharp angle structure to better cut the grout and achieve closure. The two grouting pipes have the same diameter. The diameter of the connecting pipe is larger than the diameter of the grouting pipes. A delivery pump is provided upstream of the control valve assembly. The delivery pump is connected to the flange through the upstream connecting pipe of the valve.
[0043] The above detailed description is a specific description of feasible embodiments of the present invention. These embodiments are not intended to limit the patent scope of the present invention. All equivalent implementations or modifications that do not depart from the present invention should be included in the patent scope of this case.
Claims
1. An anchor cable grouting system, characterized in that: Grouting is performed into the anchor cable hole through the two grouting pipes. The two grouting pipes are alternately connected to a control valve assembly to achieve secondary grouting. The control valve assembly includes a valve body, a drive component, a valve ball, a valve pipe, a flange, a connecting pipe, a buffer box, and a connector. The valve ball is installed in the valve body. The drive component drives the valve ball to rotate to achieve opening and closing. The valve pipe is connected to the valve body. The valve pipe is connected to the connecting pipe through the flange. The connecting pipe includes an upstream connecting pipe and a downstream connecting pipe. The buffer box includes a box body, a seat block, a guide plate, an inlet, an outlet, an upper hole, a valve plate, a plug, a crossbar, and a locking ring; a downstream pipe of the valve is connected to the inlet of the buffer box, and two grouting pipes are alternately connected to the outlet of the buffer box through the connector; a guide plate is provided inside the box body, and the guide plate is inclined; the seat block is provided inside the side wall of the box body, and the seat block is provided with a groove and a discharge channel; the seat block is located above the guide plate, and the outlet is located above the seat block; the upper hole is provided on the top cover of the box body, and the upper hole is a square hole. The plug includes a T-shaped body and a first connector. The first connector is located on the top of the T-shaped body and has a first hole. The valve plate includes a main plate, a horizontal plate, and a second connector. The horizontal plate is located on the top of the main plate, and the second connector is located on the top of the horizontal plate and has a second hole. The locking ring is fixedly installed on the top of the housing. In the first state, the T-shaped body of the plug is disposed in the upper hole, and the crossbar passes through the locking ring and the first hole; in the second state, the main plate of the valve plate extends into the buffer box through the upper hole to close the outlet, the lower end of the main plate extends into the groove, and the discharge channel extends in the seat block, with one end extending to the side of the main plate; at the same time, the horizontal plate is fitted in the upper hole, and the crossbar passes through the locking ring and the second hole.
2. The anchor cable grouting system according to claim 1, characterized in that: The upper hole has a T-shaped cross section, and the locking ring has an inverted concave shape.
3. The anchor cable grouting system according to claim 1, characterized in that: The valve plate is equipped with a sealing element.
4. The anchor cable grouting system according to claim 1, characterized in that: The emission channel is horizontally positioned.
5. The anchor cable grouting system according to claim 1, characterized in that: The discharge channel extends at an angle.
6. The anchor cable grouting system according to claim 1, characterized in that: The lower end of the valve plate has a pointed structure to better cut the slurry and achieve closure.
7. The anchor cable grouting system according to claim 1, characterized in that: The two grouting pipes have the same diameter.
8. The anchor cable grouting system according to claim 7, characterized in that: The diameter of the connecting pipe is larger than the diameter of the grouting pipe.
9. The anchor cable grouting system according to claim 1, characterized in that: A delivery pump is located upstream of the control valve assembly.
10. The anchor cable grouting system according to claim 9, characterized in that: The delivery pump is connected to the flange via an upstream pipe connection to the valve.