Return slurry water-binder ratio detection system and detection method for duct grouting

Abstract

The embodiment of the invention discloses a returned slurry water-binder ratio detection system and method for duct grouting, and the system comprises a slurry pipeline, a detection tank body and a density detection assembly, based on this, in the use process, slurry enters the detection tank body in the construction process, the density of the slurry in the tank body can be detected through the density detection assembly, and the detection efficiency is improved. The slurry water-binder ratio can be further obtained through conversion calculation based on the slurry density, under the condition that the slurry water-binder ratio meets the requirement, pressure maintaining operation can be conducted to complete construction of bridge engineering duct grouting, and under the condition that the slurry does not meet the requirement, an overflow opening in the detection tank body can be opened, and thin slurry is discharged. According to the return grout water-binder ratio detection system for duct grouting, whether the grout water-binder ratio of grout is qualified or not can be automatically judged, discharge of thin liquid and circulation of thick liquid can be controlled, it can be guaranteed that the grouting circulation time cannot be shortened manually, and duct cavities are avoided.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of bridge engineering technology, and in particular to a system and method for detecting the water-cement ratio of return grouting used for duct grouting. Background Art

[0002] After the prestressed steel bars are tensioned and anchored in the post-tensioned prestressed concrete components, grouting material needs to be injected into the pipe to protect the prestressed steel bars from corrosion and to bond the prestressed steel bars to the concrete as a whole. The fullness and density of the grout in the channel is the key to ensuring the durability and bearing capacity of the structure.

[0003] At present, the commonly used channel grouting process in the construction process is intelligent circulation grouting, in which the slurry is continuously circulated between the prestressed concrete components, the grouting pump of the grouting equipment and the low-speed mixing drum (slurry storage barrel) to exhaust the air in the pipeline and detect the pipeline blockage in time. Circulation grouting can achieve the effects of expelling impurities and eliminating loose channels.

[0004] During the inspection process, it was found that post-tensioned prestressed concrete components often have problems such as loose grouting of pipes, voids, water in the pipes, which leads to freezing and expansion in winter and even cracking of pipes, and corrosion of prestressed tendons. This is due to the following problems with existing grouting equipment and grouting processes:

[0005] (1) The Technical Specifications for Highway Bridge and Culvert Construction require that the slurry outlet of the beam body must first discharge air, water, and thin slurry until thick slurry is discharged. In actual construction, it is difficult for construction workers to accurately determine whether thin slurry or thick slurry is used manually, resulting in the beam body still having water or thin slurry when entering the pressure maintenance process.

[0006] (2) The water and slurry discharged from the beam body enter the low-speed mixing drum (slurry storage barrel) of the grouting equipment, which will contaminate the slurry and cause the contaminated slurry to circulate into the channel.

[0007] (3) After the thick slurry is discharged from the slurry outlet of the beam body, the slurry circulation time is manually controlled. In the absence of effective supervision, the slurry circulation time may be insufficient, resulting in voids in the channel. Summary of the invention

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0009] To this end, a first aspect of the present invention provides a return grouting water-cement ratio detection system for duct grouting.

[0010] A second aspect of the present invention provides a detection method.

[0011] In view of this, according to a first aspect of an embodiment of the present application, a grouting water-binder ratio detection system for duct grouting is proposed, comprising:

[0012] A slurry pipeline, one end of which is connected to the beam body slurry return port, and the other end of which is connected to the mixing drum;

[0013] A detection tank body, wherein the detection tank body is connected to the slurry pipeline;

[0014] A density detection component, the density detection component is connected to the detection tank;

[0015] Wherein, the detection tank body is provided with a sewage outlet and an overflow outlet.

[0016] In a feasible implementation manner, the density detection component includes:

[0017] A tuning fork probe, the tuning fork probe extending into the detection tank;

[0018] A density display is connected to the tuning fork probe and is arranged outside the detection tank.

[0019] In a feasible implementation manner, the grouting water-binder ratio detection system for duct grouting also includes:

[0020] A pressure-maintaining solenoid valve, the pressure-maintaining solenoid valve is arranged in the slurry pipeline, close to a slurry pipeline inlet of the slurry pipeline;

[0021] A slurry return solenoid valve, the slurry return solenoid valve is arranged in the slurry pipeline, close to the slurry pipeline outlet of the slurry pipeline;

[0022] A sewage discharge solenoid valve is arranged at the sewage discharge port.

[0023] In a feasible implementation manner, the return grouting water-cement ratio detection system for duct grouting further includes: a voltage stabilizing component, the voltage stabilizing component including:

[0024] A pressure stabilizing tank body, the pressure stabilizing tank body is connected to the slurry pipeline and is arranged closer to the slurry pipeline inlet of the slurry pipeline than the detection tank body;

[0025] A pressure sensor is connected to the pressure stabilizing tank.

[0026] In a feasible implementation manner, the grouting water-binder ratio detection system for duct grouting also includes:

[0027] A cleaning component is connected to the detection tank body and is used to output a cleaning medium to the detection tank body.

[0028] In a feasible implementation manner, the grouting water-binder ratio detection system for duct grouting also includes:

[0029] A discarded slurry pool, wherein the overflow port is connected to the discarded slurry pool.

[0030] According to a second aspect of an embodiment of the present application, a detection method is proposed, which is applied to a grouting water-binder ratio detection system for duct grouting as described in any of the above technical solutions, and the detection method comprises:

[0031] One end of the slurry pipeline is used to connect to the slurry return port of the beam body, and the other end is used to connect to the mixing drum;

[0032] During the construction process, after the grouting equipment presses the slurry into the beam body, the slurry flows out from the beam body, flows through the slurry pipeline through the pipeline, and enters the detection tank body;

[0033] Obtaining the density of the slurry in the detection tank;

[0034] Determining a slurry water-binder ratio based on the slurry density;

[0035] When the water-binder ratio of the slurry does not meet the requirement, the slurry is discharged through the overflow port;

[0036] When the water-to-binder ratio of the slurry meets the requirements, the slurry is allowed to flow into the mixing drum via the slurry pipeline.

[0037] In a feasible implementation manner, the step of determining the slurry water-binder ratio based on the slurry density includes: obtaining the slurry water-binder ratio by calculating using the following formula:

[0038]

[0039] Among them, λ is the water-binder ratio of slurry, ρ (压浆料) is the density of the grouting material and ρ is the density of the slurry.

[0040] In a feasible implementation manner, when the water-binder ratio of the slurry meets the requirements, the step of allowing the slurry to flow into the mixing drum through the slurry pipeline includes:

[0041] Controlling the slurry to circulate between the beam body, the return grouting water-binder ratio detection system for duct grouting, and the mixing drum for more than a first time period;

[0042] The slurry is controlled to maintain pressure, and the pressure maintaining time exceeds the second time period.

[0043] In a feasible embodiment, the detection method further comprises:

[0044] After the detection is completed, the cleaning component is turned on to clean the detection tank.

[0045] Compared with the prior art, the present invention has at least the following beneficial effects:

[0046] The grouting water-cement ratio detection system for duct grouting provided in the embodiment of the present application includes a slurry pipeline, a detection tank and a density detection component. Based on this, during use, one end of the slurry pipeline is used to connect to the grouting port of the beam body, and the other end is used to connect to the mixing drum. During the construction process, after the grouting equipment presses the slurry into the beam body, the slurry flows out from the beam body, flows through the slurry pipeline through the pipeline, and enters the detection tank body. The slurry density in the tank body can be detected by the density detection component, and the slurry water-cement ratio can be obtained by conversion and calculation based on the slurry density. When the slurry water-cement ratio meets the requirements, the slurry flows into the mixing drum through the slurry pipeline, and then the slurry circulates between the prestressed concrete component, the grouting equipment and the mixing drum. After the circulation exceeds the specified time, the pressure maintaining operation can be performed to complete the construction of duct grouting of the bridge project. When the slurry does not meet the requirements, the overflow port on the detection tank body can be opened to discharge the thin slurry. Based on this, the return grouting water-cement ratio detection system for pore grouting provided by the embodiment of the present application can automatically determine whether the slurry water-cement ratio is qualified, can control the discharge of dilute liquid and the circulation of concentrated liquid, and can ensure that the grouting cycle time will not be shortened artificially, thereby avoiding the occurrence of pore voids. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0048] Figure 1 A schematic structural diagram of a grouting water-cement ratio detection system for duct grouting according to an embodiment of the present application;

[0049] Figure 2 A schematic structural diagram of another angle of a grouting water-cement ratio detection system for duct grouting according to an embodiment of the present application;

[0050] Figure 3 A schematic flowchart of the steps of a detection method according to another embodiment of the present application.

[0051] in, Figure 1 to Figure 2 The corresponding relationship between the reference numerals and the component names is as follows:

[0052] 1 slurry pipeline, 2 pressure stabilizing assembly, 3 pressure maintaining solenoid valve, 4 density detection assembly, 5 detection tank, 6 sewage discharge solenoid valve, 7 cleaning assembly, 8 return slurry solenoid valve, 11 slurry pipeline inlet, 12 slurry pipeline outlet, 21 pressure stabilizing tank, 22 pressure sensor, 41 tuning fork probe, 42 density display, 51 sewage outlet, 52 overflow outlet, 53 cleaning outlet. DETAILED DESCRIPTION

[0053] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0054] like Figure 1 and Figure 2 As shown, according to the first aspect of the embodiment of the present application, a return grouting water-cement ratio detection system for duct grouting is proposed, comprising: a slurry pipeline 1, one end of the slurry pipeline 1 is used to be connected to the return grouting port of the beam body, and the other end is used to be connected to the mixing drum; a detection tank body 5, the detection tank body 5 is connected to the slurry pipeline 1; a density detection component 4, the density detection component 4 is connected to the detection tank body 5; wherein, a sewage outlet 51 and an overflow outlet 52 are opened on the detection tank body 5.

[0055] The grouting water-cement ratio detection system for duct grouting provided in the embodiment of the present application includes a slurry pipeline 1, a detection tank 5 and a density detection component 4. Based on this, during use, one end of the slurry pipeline 1 is used to connect to the grouting port of the beam body, and the other end is used to connect to the mixing drum. During the construction process, after the grouting equipment presses the slurry into the beam body, the slurry flows out from the beam body, flows through the slurry pipeline 1 through the pipeline, and enters the detection tank 5. The slurry density in the tank 5 can be detected by the density detection component 4, and the slurry water-cement ratio can be obtained by conversion and calculation based on the slurry density. When the slurry water-cement ratio meets the requirements, the slurry flows into the mixing drum through the slurry pipeline 1, and then the slurry circulates between the prestressed concrete component, the grouting equipment and the mixing drum. After the circulation exceeds the specified time, the pressure maintaining operation can be performed to complete the construction of duct grouting of the bridge project. When the slurry does not meet the requirements, the overflow port 52 on the detection tank 5 can be opened to discharge the thin slurry. Based on this, the return grouting water-cement ratio detection system for pore grouting provided by the embodiment of the present application can automatically determine whether the slurry water-cement ratio is qualified, can control the discharge of dilute liquid and the circulation of concentrated liquid, and can ensure that the grouting cycle time will not be shortened artificially, thereby avoiding the occurrence of pore voids.

[0056] like Figure 1 and Figure 2 As shown, in a feasible implementation manner, the density detection assembly 4 includes: a tuning fork probe 41, which extends into the detection tank body 5; and a density display 42, which is connected to the tuning fork probe 41 and is disposed outside the detection tank body 5.

[0057] In this technical solution, the structural composition of a density detection component 4 is further provided. The density detection component 4 may include a tuning fork probe 41 and a density display 42, based on which online detection and display of the slurry density can be achieved, making it easy to obtain the density of the slurry in the detection tank 5.

[0058] like Figure 1 and Figure 2 As shown, in a feasible embodiment, the return grouting water-cement ratio detection system for hole grouting also includes: a pressure maintaining solenoid valve 3, the pressure maintaining solenoid valve 3 is arranged in the slurry pipeline 1, and is arranged close to the slurry pipeline inlet 11 of the slurry pipeline 1; a return grouting solenoid valve 8, the return grouting solenoid valve 8 is arranged in the slurry pipeline 1, and is arranged close to the slurry pipeline outlet 12 of the slurry pipeline 1; a sewage discharge solenoid valve 6, and the sewage discharge solenoid valve 6 is arranged at the sewage discharge outlet 51.

[0059] In this technical solution, the return grouting water-cement ratio detection system for duct grouting may also include a valve body structure. By setting the pressure-maintaining solenoid valve 3, the return grouting solenoid valve 8 and the sewage discharge solenoid valve 6, it is convenient to control the flow mode of the slurry in the return grouting water-cement ratio detection system for duct grouting, such as facilitating the control of the circulation of the slurry between the prestressed concrete components, the grouting equipment and the mixing drum, facilitating the control of the overflow of the dilute slurry, and facilitating the control of the emptying of the return grouting water-cement ratio detection system for duct grouting.

[0060] like Figure 1 and Figure 2 As shown, in a feasible embodiment, the return grouting water-cement ratio detection system for duct grouting also includes: a pressure stabilizing component 2, the pressure stabilizing component 2 includes: a pressure stabilizing tank body 21, the pressure stabilizing tank body 21 is connected to the slurry pipeline 1, and is arranged closer to the slurry pipeline inlet 11 of the slurry pipeline 1 than the detection tank body 5; a pressure sensor 22, and the pressure sensor 22 is connected to the pressure stabilizing tank body 21.

[0061] In this technical solution, the return grouting water-cement ratio detection system for duct grouting also includes a pressure stabilizing component 2, and the pressure stabilizing component 2 can include a pressure stabilizing tank 21 and a pressure sensor 22. Based on this, when the slurry detection result is qualified, the concentrated slurry flows back to the low-speed mixing drum of the grouting equipment. After the slurry circulates between the beam body, the system, and the grouting equipment for the first time, the pressure-maintaining solenoid valve 3 is closed, and the pressure-maintaining stage is entered and maintained for 3-5 minutes. During the pressure-maintaining stage, the slurry enters the pressure stabilizing tank 21, and the pressure sensor 22 detects and displays the return grouting pressure. To meet construction needs.

[0062] like Figure 1 and Figure 2 As shown, in a feasible implementation manner, the return grouting water-cement ratio detection system for duct grouting further includes: a cleaning component 7, the cleaning component 7 is connected to the detection tank body 5, and is used to output a cleaning medium to the detection tank body 5.

[0063] In this technical solution, the water-cement ratio detection system for grouting can also include a cleaning component 7. After the water-cement ratio detection system for grouting completes the detection and the grouting construction of the bridge project is completed, the water-cement ratio detection system for grouting can be emptied, and the cleaning medium output by the detection tank 5 is cleaned through the cleaning component 7 to ensure the accuracy of subsequent detection.

[0064] In some examples, the cleaning medium may be water.

[0065] In a feasible implementation manner, the grouting water-binder ratio detection system for duct grouting also includes:

[0066] Abandoned slurry pool, the overflow port 52 is connected to the abandoned slurry pool.

[0067] like Figure 3 As shown, according to the second aspect of the embodiment of the present application, a detection method is proposed, which is applied to the grouting water-binder ratio detection system for duct grouting as in any of the above technical solutions, and the detection method includes:

[0068] Step 201: one end of the slurry pipeline is used to connect to the slurry return port of the beam body, and the other end is used to connect to the mixing drum;

[0069] Step 202: during the construction process, after the grouting equipment presses the grout into the beam body, the grout flows out of the beam body, flows through the grout pipeline through the pipeline, and enters the detection tank body;

[0070] Step 203: obtaining the density of the slurry in the detection tank;

[0071] Step 204: Determine the slurry water-binder ratio based on the slurry density;

[0072] Step 205: When the water-binder ratio of the slurry does not meet the requirement, the slurry is discharged through the overflow port;

[0073] Step 206: When the water-binder ratio of the slurry meets the requirements, the slurry is allowed to flow into the mixing drum through the slurry pipeline.

[0074] The detection method provided in the embodiment of the present application is applied to the water-to-cement ratio detection system for grouting in the duct according to any of the above-mentioned technical solutions, so the detection method has all the beneficial effects of the water-to-cement ratio detection system for grouting in the duct according to the above-mentioned technical solutions.

[0075] Through the detection method provided in the embodiment of the present application, combined with the return grouting water-cement ratio detection system used for duct grouting, the slurry water-cement ratio can be detected online during the duct grouting construction process of the bridge project, and automatic detection of the slurry water-cement ratio, automatic control of slurry circulation, and automatic discharge of water and slurry can be achieved.

[0076] In a feasible implementation manner, the step of determining the slurry water-binder ratio based on the slurry density includes: obtaining the slurry water-binder ratio by calculating using the following formula:

[0077]

[0078] Among them, λ is the water-binder ratio of slurry, ρ (压浆料) is the density of the grouting material, and ρ is the density of the slurry. With this arrangement, the slurry water-binder ratio can be calculated based on the slurry density, making the determination of the slurry water-binder ratio more convenient.

[0079] In a feasible implementation, when the water-binder ratio of the slurry meets the requirements, the step of allowing the slurry to flow into the mixing drum through the slurry pipeline includes: controlling the slurry to circulate between the beam body, the return grouting water-binder ratio detection system for grouting the hole and the mixing drum for more than a first time period; controlling the slurry to maintain pressure for a time period exceeding a second time period. Such a setting can ensure the circulation time and the pressure maintenance time, and can ensure that the grouting cycle time will not be shortened artificially, avoid the occurrence of hole cavities, and ensure the construction quality.

[0080] In a feasible implementation, the detection method further includes: after the detection is completed, starting the cleaning component to clean the detection tank body. In this way, the cleaning medium output by the cleaning component to clean the detection tank body can ensure the accuracy of subsequent detection and the service life of the density detection component.

[0081] Example

[0082] like Figure 1 and Figure 2 As shown, this embodiment provides a return grouting water-cement ratio detection system for channel grouting, including a slurry pipeline 1, a pressure stabilizing component 2, a pressure maintaining solenoid valve 3, a density detection component 4, a detection tank 5, a sewage discharge solenoid valve 6, a cleaning component 7 and a return grouting solenoid valve 8.

[0083] Among them, the slurry pipeline inlet 11 of the slurry pipeline 1 is connected to the slurry pipeline 1 at the beam return port through a pipeline, and the slurry pipeline outlet 12 is connected to the low-speed mixing drum of the grouting equipment through a pipeline; the pressure stabilizing component 2, the pressure maintaining solenoid valve 3, the detection tank body 5, and the return solenoid valve 8 are connected to the slurry pipeline 1 in sequence; the pressure stabilizing component 2 is composed of a pressure stabilizing tank body 21 and a pressure sensor 22 connected to the top of the pressure stabilizing tank body 21; the tuning fork probe 41 of the density detection component 4 is located inside the detection tank body 5, and the density display 42 is located on the outside of the top of the detection tank body 5; the detection tank body 5 is provided with a sewage outlet 51 of the detection tank body 5 at the bottom and an overflow outlet 52 of slurry at the top, and the sewage solenoid valve 6 is connected to the sewage outlet 51 of the detection tank body 5; high-pressure water cleaning ports 53 are provided on both sides of the detection tank body 5, and the tank cleaning system is connected to the high-pressure water cleaning port 53.

[0084] Before the hole grouting begins, the pressure-maintaining solenoid valve 3 is opened, and the sewage solenoid valve 6 and the return grouting solenoid valve 8 are closed. After the grouting equipment presses the grout into the beam body, the grout flows out of the beam body and flows into the grout pipeline inlet 11 through the pipeline. The slurry flows in from the slurry pipeline inlet 11, flows through the pressure-maintaining solenoid valve 3, and enters the inside of the detection tank body 5. The slurry contacts the tuning fork probe 41 inside the detection tank body 5, and the tuning fork probe 41 detects the slurry density ρ online in real time and displays it on the density display 42.

[0085] The tuning fork probe 41 detects the slurry density ρ, and the slurry water-binder ratio λ is calculated according to the following formula:

[0086]

[0087] Where: the density of water is considered to be 1g / cm3, λ is the water-binder ratio of the slurry, ρ (压浆料) is the density of the grouting material and ρ is the density of the slurry.

[0088] Among them, when the slurry is thin, that is, the slurry water-binder ratio λ≤λ_limit, the return slurry solenoid valve 8 is in a closed state; when the slurry is thick, that is, the slurry water-binder ratio λ≥λ_limit, the return slurry solenoid valve 8 is in an open state.

[0089] When the return solenoid valve 8 is in a closed state, the thin slurry is discharged into the abandoned slurry pool through the thin slurry overflow port 52; when the return solenoid valve 8 is in an open state, the thick slurry flows back to the low-speed mixing drum of the grouting equipment through the slurry pipeline outlet 12 through the pipeline.

[0090] Among them, the concentrated slurry flows back to the low-speed mixing drum of the grouting equipment. After the slurry circulates between the beam body, this system and the grouting equipment for 30 seconds, the pressure-maintaining solenoid valve 3 is closed, entering the pressure-maintaining stage and maintaining it for 3-5 minutes.

[0091] In the pressure-maintaining stage, the slurry enters the pressure-stabilizing tank 21, and the pressure sensor 22 detects and displays the return slurry pressure. After the pressure-maintaining stage is completed, the tank cleaning system injects high-pressure water into the detection tank 5 from the high-pressure water cleaning port 53. After the tank cleaning is completed, the sewage discharge solenoid valve 6 opens the sewage discharge port 51 of the detection tank 5 to discharge the waste slurry and sewage in the detection tank 5.

[0092] After the hole grouting is completed, each solenoid valve returns to its initial state before the hole grouting begins.

[0093] Compared with the existing grouting equipment and grouting process, the advantages of the present invention are:

[0094] (1) The density of the slurry is detected by the density detection component 4 and converted into the water-binder ratio of the slurry, thereby realizing the improvement from manual determination of thick slurry and thin slurry to automatic determination of thick slurry and thin slurry, which can effectively ensure the accuracy of the slurry determination result.

[0095] (2) The switch of the return slurry solenoid valve 8 is controlled by the test result of the slurry water-binder ratio to discharge water and slurry to prevent them from entering the low-speed mixing barrel (slurry storage barrel) of the grouting equipment and contaminating the slurry.

[0096] (3) Through the cooperation of the pressure-maintaining electromagnetic valve 3 and the return-slurry electromagnetic valve 8, the automatic control of the slurry circulation time is realized, which can ensure that the grouting cycle time will not be shortened artificially and avoid the occurrence of pore holes.

[0097] (4) The tank cleaning system and the sewage solenoid valve 6 cooperate to realize the automatic cleaning of the detection tank 5 and the online tuning fork sensor, thereby ensuring the service life of the sensor.

[0098] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying 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 unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0100] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0101] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grouting water-binder ratio detection system for duct grouting, characterized in that: include: A slurry pipeline, one end of which is connected to the beam body slurry return port, and the other end of which is connected to the mixing drum; A detection tank body, wherein the detection tank body is connected to the slurry pipeline; A density detection component, the density detection component is connected to the detection tank; Wherein, the detection tank body is provided with a sewage outlet and an overflow outlet.

2. The water-binder ratio detection system for grouting of a hole according to claim 1 is characterized in that: The density detection component comprises: A tuning fork probe, the tuning fork probe extending into the detection tank; A density display is connected to the tuning fork probe and is arranged outside the detection tank.

3. The water-binder ratio detection system for grouting of a hole according to claim 1 is characterized in that: Also includes: A pressure-maintaining solenoid valve, the pressure-maintaining solenoid valve is arranged in the slurry pipeline, close to a slurry pipeline inlet of the slurry pipeline; A slurry return solenoid valve, the slurry return solenoid valve is arranged in the slurry pipeline, close to the slurry pipeline outlet of the slurry pipeline; A sewage discharge solenoid valve is arranged at the sewage discharge port.

4. The water-binder ratio detection system for grouting of a hole according to claim 1 is characterized in that: Also includes: A voltage stabilizing component, the voltage stabilizing component comprising: A pressure stabilizing tank body, the pressure stabilizing tank body is connected to the slurry pipeline and is arranged closer to the slurry pipeline inlet of the slurry pipeline than the detection tank body; A pressure sensor is connected to the pressure stabilizing tank.

5. The grouting water-binder ratio detection system for duct grouting according to claim 1 is characterized in that: Also includes: A cleaning component is connected to the detection tank body and is used to output a cleaning medium to the detection tank body.

6. The water-cement ratio detection system for grouting in a hole according to claim 1 is characterized in that: Also includes: A discarded slurry pool, wherein the overflow port is connected to the discarded slurry pool.

7. A detection method, characterized in that: The water-cement ratio detection system for grouting in a hole according to any one of claims 1 to 6, wherein the detection method comprises: One end of the slurry pipeline is used to connect to the slurry return port of the beam body, and the other end is used to connect to the mixing drum; During the construction process, after the grouting equipment presses the slurry into the beam body, the slurry flows out from the beam body, flows through the slurry pipeline through the pipeline, and enters the detection tank body; Obtaining the density of the slurry in the detection tank; Determining a slurry water-binder ratio based on the slurry density; When the water-binder ratio of the slurry does not meet the requirement, the slurry is discharged through the overflow port; When the water-to-binder ratio of the slurry meets the requirements, the slurry is allowed to flow into the mixing drum via the slurry pipeline.

8. The detection method according to claim 7, characterized in that: The step of determining the slurry water-binder ratio based on the slurry density includes: obtaining the slurry water-binder ratio by calculating using the following formula: Among them, λ is the water-binder ratio of slurry, ρ (压浆料) is the density of the grouting material and ρ is the density of the slurry.

9. The detection method according to claim 7, characterized in that: When the water-binder ratio of the slurry meets the requirement, the step of allowing the slurry to flow into the mixing drum via the slurry pipeline comprises: Controlling the slurry to circulate between the beam body, the return grouting water-binder ratio detection system for duct grouting, and the mixing drum for more than a first time period; The slurry is controlled to maintain pressure, and the pressure maintaining time exceeds the second time period.

10. The detection method according to claim 7, characterized in that: Also includes: After the detection is completed, the cleaning component is turned on to clean the detection tank.

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