Sleeve valve pipe grouting quality inspection measuring rod and sleeve valve pipe grouting structure

Abstract

The utility model relates to a sleeve valve pipe grouting quality inspection measuring rod and a sleeve valve pipe grouting structure, the sleeve valve pipe grouting quality inspection measuring rod comprises a sleeve valve pipe A and a measuring rod arranged in the sleeve valve pipe A. The measuring rod comprises a guide rod, an accommodating groove provided with the outer wall of the guide rod, and a sensor arranged in the accommodating groove. The inflation bag is arranged outside the guide rod in a sleeving mode, and the signal receiving device is used for receiving detection results of the sensor. The sleeve valve pipe grouting quality detection device can detect grouting quality in real time in the sleeve valve pipe grouting process.

Description

Technical Field

[0001] The utility model belongs to the field of grouting quality detection equipment, and specifically relates to a sleeve valve pipe grouting quality detection measuring rod and a sleeve valve pipe grouting structure. Background Art

[0002] During the operation of rail transit, the foundation (the foundation includes the overlying soil layer 7 and the stratum to be reinforced 6) is affected by the changes in the stratum, water level, surrounding environment and the structural defects of the structure itself, and is prone to uneven foundation settlement, water leakage and other defects. This requires timely repair of the foundation. During the repair construction, due to the lack of real-time monitoring equipment for grouting quality, the current common practice is to grout first, and then conduct a random check and verification of the grouting effect through a water injection test or drilling coring after the grouting is completed. Since it is a random inspection, it cannot fully reflect the grouting quality, and when quality defects are found, rework and repair are required, which greatly prolongs the construction period.

[0003] Although, in other grouting construction, there are real-time monitoring equipment, such as a tunnel crossing cavity directional grouting system with application number 201820905958.9, which monitors the changes in pressure and grouting volume during the grouting process by placing a detection rod and a sensor in the grouting pipe, its purpose is to be able to adjust the grouting process parameters in a timely manner, rather than to reflect the quality of the grouting operation, and it cannot be applied to the sleeve valve tube grouting process. Therefore, it is very important to develop a sleeve valve tube grouting quality inspection rod that can monitor the grouting quality in real time in the sleeve valve tube grouting system. Utility Model Content

[0004] The utility model aims to overcome the technical defect of the prior art that there is a lack of real-time inspection of the grouting quality of sleeve valve pipe grouting, and provides a sleeve valve pipe grouting quality inspection measuring rod and a sleeve valve pipe grouting structure.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A sleeve valve tube grouting quality inspection measuring rod comprises a sleeve valve tube A, a measuring rod arranged in the sleeve valve tube A, the measuring rod comprising a guide rod, a receiving groove provided on the outer wall of the guide rod, a sensor arranged in the receiving groove, an inflatable bag sleeved on the outside of the guide rod, and a signal receiving device for receiving the detection result of the sensor.

[0007] As a further technical solution, the inflatable bag includes a geomembrane bag, an inflation port and an exhaust port are arranged on the geomembrane bag, an inflation valve is arranged at the inflation port, and an exhaust valve is arranged at the exhaust port.

[0008] As a further technical solution, the geomembrane bag is in a circular shape, and the inflation port and the exhaust port are both arranged on the top of the geomembrane bag.

[0009] As a further technical solution, the accommodating groove is a strip-shaped accommodating groove, and the strip-shaped accommodating groove is arranged along the axial direction of the guide rod.

[0010] As a further technical solution, the sensor is selected from a pressure sensor, an acceleration sensor or a temperature sensor.

[0011] As a further technical solution, the signal receiving device is communicatively connected to the sensor.

[0012] As a further technical solution, the number of the containing grooves is 2, and the two containing grooves are symmetrically arranged.

[0013] As a further technical solution, the sleeve valve tube A includes an outer sleeve, an injection tube and a guide cap arranged in sequence from top to bottom. The injection tube is provided with a plurality of injection holes along the circumference, and the injection tube is also provided with a rubber ring covering the injection holes.

[0014] As a further technical solution, the sensing end of the sensor corresponds to the position of the grouting hole.

[0015] A sleeve valve tube grouting structure comprises a plurality of grouting holes arranged on a foundation, wherein one of two adjacent grouting holes is provided with a sleeve valve tube grouting device, and the other is provided with the sleeve valve tube grouting quality inspection measuring rod, and the gap between the hole wall of the grouting hole and the sleeve valve tube grouting device or the sleeve valve tube grouting quality inspection measuring rod is filled with casing material and stop grouting material; the sleeve valve tube grouting device comprises a sleeve valve tube B and a grouting tube inserted in the sleeve valve tube B, the structure of the sleeve valve tube B is the same as that of the sleeve valve tube A of the sleeve valve tube grouting quality inspection measuring rod, and in the vertical direction, the grouting hole of the sleeve valve tube A and the grouting hole of the sleeve valve tube B are in the same plane.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model designs a measuring rod with a brand-new structure, in which a sensor is arranged on the guide rod, an inflatable bag is arranged outside the sensor, and the sensor is inserted into a sleeve valve tube for use. Whether the grouting is qualified can be judged by detecting the characteristic change curve of the pressure over time during the grouting process. The utility model breaks the limitation of the inspection equipment and methods in the prior art, which can only carry out random inspection after the grouting is completed, and realizes the real-time monitoring of the grouting quality during the grouting process. Compared with the construction method of random inspection after the grouting is completed in the prior art, the utility model can timely discover the problems in the grouting, ensure that the grouting is qualified at one time, effectively guarantee the construction quality, and avoid rework and repair after the construction is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A magnified image of point A;

[0020] Figure 3 A top view of a measuring rod in one embodiment of the utility model;

[0021] Figure 4 A three-dimensional diagram of a measuring rod in one embodiment of the utility model;

[0022] Figure 5 for Figure 4 Cross-sectional view along direction BB;

[0023] Figure 6 A three-dimensional diagram of a sleeve valve tube A or sleeve valve tube B in one embodiment of the utility model;

[0024] Figure 7 A three-dimensional diagram of an injection pipe in one embodiment of the utility model;

[0025] Figure 8 This is a structural schematic diagram of a sleeve valve pipe grouting structure in one embodiment of the utility model;

[0026] Fig. 9 It is a schematic diagram of a time-pressure curve when the grouting quality is qualified in one embodiment of the utility model.

[0027] exist Figure 1-8 In: 1. Sleeve valve tube A, 11. Outer sleeve, 12. Jet pipe, 13. Guide cap, 14. Grouting hole, 15. Rubber ring; 2. Measuring rod, 21. Guide rod, 22. Receiving groove, 23. Sensor, 24. Geomembrane bag, 25. Signal receiving device, 26. Inflating valve, 27. Exhaust valve; 3. Sleeve valve tube B, 4. Grouting pipe, 5. Grouting hole, 51. Shell material, 52. Stop grouting material; 6. Stratum to be reinforced, 7. Overlying soil layer. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The present invention will be described in further detail below with reference to the accompanying drawings.

[0032] Example 1

[0033] like Figure 1-7 An embodiment of a sleeve valve tube grouting quality inspection measuring rod of the utility model is shown, comprising a sleeve valve tube A1, a measuring rod 2 arranged in the sleeve valve tube A1, the measuring rod 2 comprising a guide rod 21, a receiving groove 22 provided on the outer wall of the guide rod 21, a sensor 23 arranged in the receiving groove 22, an inflatable bag sleeved on the outside of the guide rod 21, and a signal receiving device 25 for receiving the detection result of the sensor 23.

[0034] As an embodiment of a sleeve valve tube grouting quality inspection measuring rod of the utility model, the inflatable bag includes a geomembrane bag 24, an inflation port and an exhaust port are arranged on the geomembrane bag 24, an inflation valve 26 is arranged at the inflation port, and an exhaust valve 27 is arranged at the exhaust port.

[0035] As an embodiment of a sleeve valve tube grouting quality inspection measuring rod of the utility model, the geomembrane bag 24 is in a circular ring shape, and the inflation port and the exhaust port are both arranged on the top of the geomembrane bag 24 .

[0036] As an embodiment of a sleeve valve tube grouting quality inspection measuring rod of the utility model, the accommodating groove 22 is a strip accommodating groove, and the strip accommodating groove is axially arranged along the guide rod 21.

[0037] As an embodiment of the sleeve valve tube grouting quality inspection measuring rod of the utility model, the sensor 23 is a pressure sensor.

[0038] As an embodiment of the sleeve valve tube grouting quality inspection measuring rod of the utility model, the signal receiving device 25 adopts a pressure digital display. As another embodiment of the sleeve valve tube grouting quality inspection measuring rod of the utility model, the sensor can also adopt a temperature sensor or an acceleration sensor, etc. When a temperature sensor or an acceleration sensor is adopted, the receiving signal type of the signal receiving device needs to be adaptively changed at the same time.

[0039] As an embodiment of a sleeve valve tube grouting quality inspection measuring rod of the utility model, the signal receiving device 25 is communicatively connected with the sensor 23 .

[0040] As an embodiment of a sleeve valve tube grouting quality inspection measuring rod of the utility model, the number of the accommodating grooves 22 is 2, and the two accommodating grooves 22 are symmetrically arranged.

[0041] As an embodiment of a sleeve valve tube grouting quality inspection measuring rod of the utility model, the sleeve valve tube A1 includes an outer sleeve 11, an injection tube 12 and a guide cap 13 arranged in sequence from top to bottom, and a plurality of injection holes 14 are arranged along the circumference of the injection tube 12. The injection tube 12 is also provided with a rubber ring 15 covering the injection holes 14.

[0042] As an embodiment of a sleeve valve tube grouting quality inspection measuring rod of the utility model, in the vertical direction, the sensing end of the sensor 23 corresponds to the position of the grouting hole 14, or the sensing end of the sensor 23 and the grouting hole 14 are located in the same plane (same depth).

[0043] As an embodiment of the sleeve valve tube grouting quality inspection measuring rod of the utility model, the bottom end of the guide cap 13 is also provided with an opening 16 .

[0044] Example 2

[0045] like Figure 8An embodiment of a sleeve valve tube grouting structure is shown, comprising a plurality of grouting holes 5 arranged on a foundation, wherein in two adjacent grouting holes 5, one is provided with a sleeve valve tube grouting device, and the other is provided with a sleeve valve tube grouting quality inspection measuring rod as described in Example 1, and the gap between the hole wall of the grouting hole 5 and the sleeve valve tube grouting device or the sleeve valve tube grouting quality inspection measuring rod 2 is filled with a shell material 51 and a stop grouting material 52; the sleeve valve tube grouting device comprises a sleeve valve tube B3 and a grouting tube 4 inserted in the sleeve valve tube B3, the structure of the sleeve valve tube B3 is the same as that of the sleeve valve tube A1 of the sleeve valve tube grouting quality inspection measuring rod 2, and in the two grouting holes 5, the grouting hole 14 of the sleeve valve tube A1 and the grouting hole 14 of the sleeve valve tube B3 are in the same plane.

[0046] When the utility model is used, the arrangement of the utility model is completed according to the above-mentioned sleeve valve tube grouting structure, and then the air is inflated to make the geomembrane bag 24 bulge, and the grouting operation can be carried out. During the grouting process, as the slurry approaches the sleeve valve tube grouting quality inspection rod, the parameters detected by the sensor 23 of the sleeve valve tube grouting quality inspection rod change over time. The signal receiving device receives the detection data of the sensor 23, draws a curve of the parameter changes over time, and then, based on the drawn curve of the parameter changes over time, this embodiment takes the pressure parameter change curve over time as an example to introduce the method for judging the grouting quality;

[0047] During the grouting process, the pressure parameter data of the sensor is received by the signal receiving device 25 and plotted into a time-pressure curve. After multiple tests, it is determined that the time-pressure curve when the grouting quality is qualified has three characteristic areas, such as Fig. 9 As shown, there are a pressure rising area (pressure is rising), a pressure stabilization area (pressure is fluctuating steadily) and a pressure drop area (pressure is dropping). Therefore, when the time-pressure curve drawn by the signal receiving device 25 transitions from the pressure stabilization area to the pressure drop area, the grouting operation can be stopped. If the time-pressure curve is in the pressure rising area or enters the pressure stabilization area but does not reach the pressure drop area, the grouting range of the current grouting hole 5 does not meet the design requirements and needs to continue grouting. Therefore, the utility model can be used to detect the quality of grouting in real time during the grouting process.

[0048] The utility model designs a measuring rod 2 of a brand-new structure, in which a sensor 23 is arranged on a guide rod 21, an inflatable bag is arranged outside the sensor 23, and the sensor 23 is inserted into a sleeve valve tube for use. During the grouting process, when the slurry of the adjacent grouting holes 5 flows toward the measuring rod 2, the slurry will act on the inflatable bag through the grouting holes 14 on the sleeve valve tube, thereby acting on the sensor 23. The sensor 23 is used to detect the change of parameters such as pressure over time during the grouting process. When it meets the preset change curve and meets the preset requirements, the grouting quality is qualified. When it does not meet the preset change curve or does not meet the preset requirements, it means that the grouting quality is unqualified and grouting needs to be continued.

[0049] The utility model breaks the limitation of the inspection equipment and methods in the prior art, which can only carry out random inspection after the grouting is completed, and realizes the real-time monitoring of the grouting quality during the grouting process. Compared with the construction method of random inspection after the grouting is completed in the prior art, the utility model can timely discover the problems in the grouting, ensure that the grouting is qualified in one time, effectively guarantee the construction quality, and avoid rework and repair after the construction is completed.

[0050] The above-mentioned embodiments are only preferred embodiments of the present invention, and are not exhaustive of the feasible implementations of the present invention. For those skilled in the art, any obvious changes made to the present invention without departing from the principle and spirit of the present invention should be considered to be included in the scope of protection of the claims of the present invention.

Claims

1. A sleeve valve tube grouting quality inspection rod, characterized in that: The invention comprises a sleeve valve tube A (1), a measuring rod (2) arranged in the sleeve valve tube A (1), the measuring rod (2) comprising a guide rod (21), a receiving groove (22) provided on the outer wall of the guide rod (21), a sensor (23) arranged in the receiving groove (22), an inflatable bag sleeved outside the guide rod (21), and a signal receiving device (25) for receiving the detection result of the sensor (23).

2. A sleeve valve tube grouting quality inspection rod according to claim 1, characterized in that: The inflatable bag comprises a geomembrane bag (24), an inflation port and an exhaust port arranged on the geomembrane bag (24), an inflation valve (26) being arranged at the inflation port, and an exhaust valve (27) being arranged at the exhaust port.

3. A sleeve valve tube grouting quality inspection rod according to claim 2, characterized in that: The geomembrane bag (24) is in the shape of a ring, and the inflation port and the exhaust port are both arranged at the top of the geomembrane bag (24).

4. A sleeve valve tube grouting quality inspection rod according to claim 1, characterized in that: The accommodating groove (22) is a strip-shaped accommodating groove, and the strip-shaped accommodating groove is arranged axially along the guide rod (21).

5. A sleeve valve tube grouting quality inspection rod according to claim 1, characterized in that: The sensor (23) is selected from a pressure sensor, an acceleration sensor or a temperature sensor.

6. A sleeve valve tube grouting quality inspection rod according to claim 1, characterized in that: The signal receiving device (25) is communicatively connected to the sensor (23).

7. A sleeve valve tube grouting quality inspection rod according to claim 1, characterized in that: The number of the containing grooves (22) is 2, and the two containing grooves (22) are symmetrically arranged.

8. A sleeve valve tube grouting quality inspection rod according to claim 1, characterized in that: The sleeve valve tube A (1) comprises an outer sleeve (11), a spray tube (12) and a guide cap (13) which are arranged in sequence from top to bottom. The spray tube (12) is provided with a plurality of grouting holes (14) along the circumference. The spray tube (12) is also provided with a rubber ring (15) covering the grouting holes (14).

9. A sleeve valve tube grouting quality inspection rod according to claim 8, characterized in that: The sensing end of the sensor (23) corresponds to the position of the grouting hole (14).

10. A sleeve valve pipe grouting structure, characterized in that: It comprises a plurality of grouting holes (5) arranged on a foundation, wherein one of two adjacent grouting holes (5) is provided with a sleeve valve tube grouting device, and the other is provided with a sleeve valve tube grouting quality inspection measuring rod as described in any one of claims 1 to 9, and the space between the hole wall of the grouting hole (5) and the sleeve valve tube grouting device or the sleeve valve tube grouting quality inspection measuring rod (2) is filled with a casing material (51) and a grouting stop material (52); the sleeve valve tube grouting device comprises a sleeve valve tube B (3) and a grouting tube (4) inserted into the sleeve valve tube B (3), the structure of the sleeve valve tube B (3) is the same as the structure of the sleeve valve tube A (1) of the sleeve valve tube grouting quality inspection measuring rod (2), and the grouting hole (14) of the sleeve valve tube A (1) and the grouting hole (14) of the sleeve valve tube B (3) are in the same plane.

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