Device for controlling elevation of pile top of slurry retaining wall cast-in-place pile through liquid level method and double measuring points

Abstract

The invention relates to the technical field of slurry grouting, and discloses a liquid level method double-measuring-point control slurry retaining wall grouting pile top elevation device which comprises a three-way grouting pipe, a triangular positioning frame and a feeding hopper, the triangular positioning frame is connected to the top of the three-way grouting pipe in a sleeving mode, and the top of the three-way grouting pipe communicates with the feeding hopper; discharging ends are symmetrically arranged at the bottom of the three-way grouting pipe, and the two discharging ends of the three-way grouting pipe are each provided with a double-measuring-point detection assembly. Most liquid level method elevation devices on the market only adopt single measuring point detection, and elevation misjudgment is easily caused by local slurry accumulation and liquid level fluctuation in a pile hole; according to the equipment, the detection assemblies are independently arranged at the double discharging ends, the LED display pieces on the two sides feed back the liquid level states of the corresponding detection points respectively, an operator can judge the actual pile top elevation according to the consistency of signals on the two sides, the problem of over-filling or under-filling caused by abnormal signals on one side is avoided, and the equipment is more suitable for the actual working condition that the liquid level of a pile hole is not uniform in cast-in-place pile construction.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mud pouring, in particular to a liquid level method double measuring point control mud wall pouring pile top elevation equipment. BACKGROUND

[0002] With the development of society, the buildings and structures with pile foundation are increasing. In modern buildings, there are usually basements, or the structural function requires the foundation to be buried at a certain depth. Due to various construction conditions, "empty pile" may occur during construction of the pile, and the top of the pile is located several meters or even tens of meters below the construction operation surface.

[0003] The detection method mainly relies on single measuring point design, which is difficult to deal with the working conditions of local slurry accumulation and uneven liquid distribution in the pile hole. The single measuring point may cause elevation misjudgment due to abnormal signals, and further cause quality problems such as over-pouring or under-pouring. The detection slider is usually in hard contact form, which is easy to deform under impact in long-term use, thereby reducing the detection accuracy and prolonging the preparation time of repeated operation. The device cannot adapt to the high frequency and fast rhythm of the construction site. The anti-clogging function is either missing or relies on additional power drive or manual cleaning. The additional power structure is prone to short circuit failure in a harsh environment with a lot of mud and high humidity. Manual cleaning needs to interrupt the operation, which not only increases the maintenance cost but also affects the construction efficiency. The flexibility of the working condition is poor, and the elevation preset needs to replace detection components of different lengths, which is time-consuming and difficult to quickly match the construction requirements of different specifications of pile body.

[0004] Therefore, it is necessary to provide a liquid level method double measuring point control mud wall pouring pile top elevation equipment to solve the above problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a liquid level method double measuring point control mud wall pouring pile top elevation equipment.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a liquid level method double measuring point control mud wall pouring pile top elevation equipment, comprising a three-way grouting pipe, a triangular positioning frame and a feeding hopper, the triangular positioning frame is sleeved on the top of the three-way grouting pipe, the top of the three-way grouting pipe is communicated with the feeding hopper, the top of the three-way grouting pipe is provided as a feeding end, the bottom of the three-way grouting pipe is symmetrically provided with two discharge ends, the two discharge ends of the bottom of the three-way grouting pipe are arranged in an inclined manner, and the two discharge ends of the three-way grouting pipe are both provided with a double measuring point detection assembly; The double-measuring-point detection assembly comprises an upper limiting ring, which is fixedly connected to the outer side of the bottom discharging end of the three-way grouting pipe, a lower limiting ring arranged below the upper limiting ring, a sliding cylinder arranged between the upper limiting ring and the lower limiting ring, a plurality of first return springs arranged in a ring shape at equal intervals on the top of the sliding cylinder, the top of each first return spring being fixedly connected to the upper limiting ring, the bottom of each first return spring being fixedly connected to the sliding cylinder, and a plurality of buffer blocks fixedly connected in an equal interval on the top of the sliding cylinder.

[0007] Preferably, the double-measuring-point detection assembly further comprises an electrically conductive sheet fixedly connected to the outer wall of the bottom discharging end of the three-way grouting pipe, a trigger sheet fixedly connected to the inner wall of the sliding cylinder, and a first LED display sheet and a second LED display sheet arranged on the triangular positioning frame respectively.

[0008] Preferably, the double-measuring-point detection assembly further comprises four L-shaped connecting rods, two of the L-shaped connecting rods being a group, the bottom of each group of L-shaped connecting rods being slidably connected to an extension rod, and the ends of the two extension rods away from the L-shaped connecting rods being fixedly connected to a floating block.

[0009] Preferably, the two discharging ends of the three-way grouting pipe are provided with anti-blocking scraping assemblies, the anti-blocking scraping assembly comprises a positioning ring fixedly connected to the outer side of the discharging end of the three-way grouting pipe, a second return spring fixedly connected to the bottom of the positioning ring, an annular sliding sheet fixedly connected to the end of the second return spring away from the positioning ring, and a working groove formed in the inner part of the annular sliding sheet.

[0010] Preferably, the anti-blocking scraping assembly further comprises a connecting strip fixedly connected to the bottom of the annular sliding sheet, and an annular scraping sheet slidably connected to the discharging end of the three-way grouting pipe, the bottom of the annular scraping sheet being fixedly connected to the connecting strip.

[0011] Preferably, the lower limiting ring is fixedly connected to the outer side of the bottom discharging end of the three-way grouting pipe, and the sliding cylinder is slidably connected to the outer wall of the bottom discharging end of the three-way grouting pipe.

[0012] Preferably, the buffer blocks and the first return springs are arranged in an interlaced manner.

[0013] Preferably, the electrically conductive sheet is arranged on the movement path of the sliding cylinder and the trigger sheet, the first LED display sheet and the second LED display sheet have an electrical connection relationship with the two groups of electrically conductive sheets respectively, and the two trigger sheets have an electrical connection relationship with the power supply of the equipment.

[0014] Preferably, the annular sliding sheet is slidingly connected outside the discharge end of the three-way grouting pipe, and the annular sliding sheet is sleeved outside the positioning ring and the second reset spring.

[0015] Preferably, the middle part of the connecting strip is provided with a flow splitter in an inclined manner.

[0016] Compared with the prior art, the liquid level method double-measuring-point control mud wall grouting pile top elevation equipment has the beneficial effects that: Most liquid level method elevation equipment on the market only uses single measuring point detection, which is easy to cause elevation misjudgment due to local slurry accumulation and liquid level fluctuation in the pile hole; the equipment independently configures a detection component at the double discharge ends, and the double-sided LED display sheets respectively feed back the liquid level state of the corresponding measuring points, so that the operator can judge the actual pile top elevation through the consistency of the double-sided signals, avoid over-grouting or under-grouting problems caused by single abnormal signal, and better adapt to the actual working conditions of uneven liquid level in the pile hole in the grouting pile construction.

[0017] The detection sliding block of the equipment on the market is mostly a hard contact structure, which is easy to cause detection precision to decrease due to impact deformation after long-term use; the equipment reduces the contact impact of the sliding cylinder and the limiting ring through the elastic rubber buffer block, and the first reset spring can automatically push the sliding cylinder to reset, without manual adjustment, which prolongs the service life of the parts, reduces the preparation time of repeated operations, and better meets the operation needs of “high frequency and fast rhythm” in the construction site.

[0018] The equipment drives the annular scraper to reciprocate and scrape off by using the flow fluctuation of the mud itself, without additional power and manual intervention, which can continuously avoid the blockage of the discharge end, adapt to the harsh environment of more mud and high humidity in the grouting pile construction, and reduce the on-site maintenance cost and failure probability of the equipment.

[0019] The equipment can quickly match the construction needs of different pile top elevations through the sliding adjustment of the telescopic rod and the L-shaped connecting rod, can adapt to the operation of different pile types without replacing parts, improves the universality of the equipment, and is more suitable for the grouting operation scene of multiple specifications of pile bodies in the construction site. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the position relationship of the overall device in the application; Figure 2 It is a sectional view of the overall device in the application; Figure 3 It is a schematic view of the position relationship of the three-way grouting pipe, the triangular positioning frame, the first LED display sheet and the second LED display sheet in the application; Figure 4 It is a schematic view of the position relationship of the upper limiting ring, the lower limiting ring, the sliding cylinder and the first reset spring in the application; Figure 5It is a schematic diagram of position relationship of the sliding cylinder, the L-shaped connecting rod, the telescopic rod and the floating block in the application; Figure 6 It is a schematic diagram of position relationship of the three-way grouting pipe, the upper limiting ring and the lower limiting ring in the application; Figure 7 It is a schematic diagram of position relationship of the three-way grouting pipe, the upper limiting ring and the lower limiting ring in the application; Figure 6 It is an enlarged view of structure at A in the application; Figure 8 It is a schematic diagram of position relationship of the upper limiting ring, the lower limiting ring and the conductive sheet in the application; Figure 9 It is an enlarged view of structure at B in the application; Figure 8 Figure 10 It is a schematic diagram of position relationship of the positioning ring, the annular sliding sheet, the second reset spring and the connecting strip in the application.

[0021] The reference signs are as follows: 11, three-way grouting pipe; 12, triangular positioning frame; 13, feeding hopper; The double-measurement-point detection assembly comprises: 21, upper limiting ring; 22, lower limiting ring; 23, sliding cylinder; 24, first reset spring; 25, buffer block; 26, conductive sheet; 27, triggering sheet; 28, L-shaped connecting rod; 29, telescopic rod; 210, floating block; 211, first LED display sheet; 212, second LED display sheet; The anti-blocking scraping assembly comprises: 31, positioning ring; 32, annular sliding sheet; 33, working groove; 34, second reset spring; 35, connecting strip; 36, annular scraping sheet. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the application more clear and understandable, the application is further described in detail below in combination with the drawings and examples, and it should be understood that the specific examples described herein are only used to explain the application and not to limit the application.

[0023] In the description of the application, the orientations or positional relationships indicated by the terms “center”, “transverse”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0024] The specific implementation of the application is described in detail below in combination with specific examples.

[0025] The examples are as follows: Figures 1 to 7 ​As shown, it is a liquid level method double measuring point control mud protection pile top elevation equipment provided by one embodiment of the application, which comprises a tee pipe grouting pipe 11, a triangular positioning frame 12 and a feeding hopper 13, the triangular positioning frame 12 is sleeved on the top of the tee pipe grouting pipe 11, the top of the tee pipe grouting pipe 11 is communicated with the feeding hopper 13, the top of the tee pipe grouting pipe 11 is provided as a feeding end, the bottom of the tee pipe grouting pipe 11 is symmetrically provided with two discharging ends, the two discharging ends of the bottom of the tee pipe grouting pipe 11 are arranged in an inclined manner, and the two discharging ends of the tee pipe grouting pipe 11 are both provided with double measuring point detection assemblies; The double measuring point detection assembly comprises an upper limit ring 21, the upper limit ring 21 is fixedly connected to the outer side of the discharging end of the bottom of the tee pipe grouting pipe 11, a lower limit ring 22 is arranged below the upper limit ring 21, a sliding cylinder 23 is arranged between the upper limit ring 21 and the lower limit ring 22, a plurality of first return springs 24 are arranged in a ring shape at equal intervals on the top of the sliding cylinder 23, the top of the first return spring 24 is fixedly connected to the upper limit ring 21, the bottom of the first return spring 24 is fixedly connected to the sliding cylinder 23, and a plurality of buffer blocks 25 are fixedly connected to the top of the sliding cylinder 23 at equal intervals.

[0026] The double measuring point detection assembly further comprises a conductive sheet 26, the conductive sheet 26 is fixedly connected to the outer wall of the discharging end of the bottom of the tee pipe grouting pipe 11, a trigger sheet 27 is fixedly connected to the inner wall of the sliding cylinder 23, and a first LED display sheet 211 and a second LED display sheet 212 are respectively arranged on the triangular positioning frame 12.

[0027] The double measuring point detection assembly further comprises four L-shaped connecting rods 28, the four L-shaped connecting rods 28 are fixedly connected to the outer wall of the sliding cylinder 23 at equal intervals, every two L-shaped connecting rods 28 form a group, the bottom of each group of L-shaped connecting rods 28 is slidably connected with an extension rod 29, and the ends of every two extension rods 29 away from the L-shaped connecting rod 28 are fixedly connected with a floating block 210.

[0028] It should be noted that the lower limit ring 22 is fixedly connected to the outer side of the discharging end of the bottom of the tee pipe grouting pipe 11, and the sliding cylinder 23 is slidably connected to the outer wall of the discharging end of the bottom of the tee pipe grouting pipe 11; in the initial state, the lower end of the sliding cylinder 23 is attached to the lower limit ring 22, so as to ensure the stability of the starting point of the sliding stroke of the sliding cylinder 23. The buffer blocks 25 and the first return springs 24 are alternately distributed along the circumferential direction of the top of the sliding cylinder 23 (arranged in a staggered manner), which can avoid mutual jamming of the plurality of first return springs 24 when compressed, and ensure the uniformity of the stress when the sliding cylinder 23 moves upward.

[0029] The conductive sheet 26 is arranged on the movement path of the sliding cylinder 23 and the trigger sheet 27, and the trigger sheet 27 can accurately contact the conductive sheet 26 when the sliding cylinder 23 slides along the outer wall of the three-way grouting pipe 11. The first LED display sheet 211 and the second LED display sheet 212 are respectively electrically connected with two groups of conductive sheets 26 one by one, and the two trigger sheets 27 are in electrical communication with the power supply of the equipment, so as to ensure that when the liquid level drives the sliding cylinder 23 to move, only the corresponding side LED display sheet will light up due to the circuit conduction. The buffer block 25 is made of elastic rubber material, and when the sliding cylinder 23 moves up to the top, the buffer block 25 first contacts the upper limit ring 21, which can effectively reduce the hard contact impact between the sliding cylinder 23 and the upper limit ring 21, and prolong the service life of the parts.

[0030] The sliding connection part of the telescopic rod 29 and the L-shaped connecting rod 28 is provided with a scale mark, so that the operator can quickly position the extension length of the telescopic rod 29 through the scale, accurately match the preset value of different pile top elevations, and improve the on-site operation efficiency; the floating block 210 is made of hollow hard foam material, which enhances the synchronicity of the floating block 210 rising with the liquid level and reduces the resistance when the liquid level rises.

[0031] As shown in Figures 8 to 10 The two discharge ends of the three-way grouting pipe 11 are provided with anti-blocking scraping assemblies, and the anti-blocking scraping assembly comprises a positioning ring 31 fixedly connected to the outer side of the discharge end of the three-way grouting pipe 11. The bottom of the positioning ring 31 is fixedly connected with a second return spring 34, one end of the second return spring 34 away from the positioning ring 31 is fixedly connected with a ring-shaped sliding sheet 32, and the inside of the ring-shaped sliding sheet 32 is provided with a working groove 33.

[0032] The anti-blocking scraping assembly further comprises a connecting strip 35 fixedly connected to the bottom of the ring-shaped sliding sheet 32, and the discharge end of the three-way grouting pipe 11 is slidably connected with a ring-shaped scraping sheet 36, and the bottom of the ring-shaped scraping sheet 36 is fixedly connected to the connecting strip 35.

[0033] It should be noted that the ring-shaped sliding sheet 32 is slidably connected to the outer side of the discharge end of the three-way grouting pipe 11, and the ring-shaped sliding sheet 32 is sleeved on the outer side of the positioning ring 31 and the second return spring 34, which not only ensures the stability of the axial sliding of the ring-shaped sliding sheet 32 along the discharge end, but also avoids the deviation or jamming of the second return spring 34 during the stretching process. The middle part of the connecting strip 35 is obliquely provided with a flow dividing sheet, and the flow dividing sheet forms a forty-five-degree angle with the mud flow direction, so as to convert the radial impact force of the mud flow into an axial driving force along the three-way grouting pipe 11, and ensure that the connecting strip 35 can stably drive the ring-shaped sliding sheet 32 to reciprocate when the mud flow rate fluctuates, thereby providing reliable power for the self-cleaning action of the ring-shaped scraping sheet 36.

[0034] The inner wall of the annular scraper 36 is provided with a plurality of annular scraping teeth, and the scraping teeth are made of wear-resistant polyurethane material, which enhances the scraping effect of the deposits on the inner wall of the discharge end and ensures smooth sliding to avoid small stones from passing through the gap and remaining.

[0035] In combination with the above-mentioned embodiments, the following is the entire working process and working principle of the above-mentioned embodiments: Working principle: Device deployment and initial state: The bottom two discharge ends of the three-way grouting pipe 11 in inclined layout are lowered to the pile hole pouring operation area, and the triangular positioning frame 12 supports and positions the three-way grouting pipe 11; at this time, the sliding cylinder 23 is supported by the first reset spring 24, and the lower end is in contact with the lower limit ring 22; the trigger piece 27 and the conductive piece 26 are in a separated state; the telescopic rod 29 is adjusted to a preset length along the axis of the L-shaped connecting rod 28, so that the initial height of the floating block 210 matches the preset value of the pile top elevation.

[0036] Mud pouring and liquid level driving steps: Mud is injected into the feed hopper 13, and the mud is divided into two inclined discharge ends through the feed end of the three-way grouting pipe 11, flows along the inner wall of the discharge end, and falls into the pile hole; as the pouring continues, the mud level in the pile hole gradually rises, and when the liquid level contacts the floating block 210, the buoyancy of the mud drives the floating block 210 to rise synchronously; the floating block 210 transmits the force to the L-shaped connecting rod 28 through the telescopic rod 29, and then drives the sliding cylinder 23 to slide upward along the outer wall of the discharge end of the three-way grouting pipe 11.

[0037] During the upward movement of the sliding cylinder 23, the buffer block 25 at the top of the sliding cylinder 23 first contacts the upper limit ring 21, the buffer block 25 is made of elastic rubber material, which reduces the impact of contact, and then the sliding cylinder 23 continues to move upward and compresses the first reset spring 24, and the elastic force of the first reset spring 24 provides reverse buffering for the sliding cylinder 23, avoiding the floating block 210 from being triggered by the liquid level fluctuation.

[0038] When the sliding cylinder 23 moves, the trigger piece 27 on the inner wall of the sliding cylinder 23 moves synchronously; when the trigger piece 27 contacts the conductive piece 26 on the outer wall of the three-way grouting pipe 11, since the trigger piece 27 is in electrical connection with the device power supply and the conductive piece 26 is in electrical connection with the corresponding LED display piece, the corresponding side LED display piece will light up due to the circuit conduction, realizing the visual feedback of "one-sided liquid level reaching the pile top elevation".

[0039] Most of the liquid level method elevation equipment on the market only uses single-point detection, which is easy to cause misjudgment of elevation due to local slurry accumulation and liquid level fluctuation in the pile hole; the equipment independently configures double-point detection components through double-discharge ends, and the first and second LED display pieces 211 and 212 on both sides respectively feed back the liquid level state of the corresponding measuring point, so that the operator can judge the actual pile top elevation through the consistency of the signals on both sides, avoiding over-filling or under-filling caused by abnormal signals on one side, and being more suitable for the actual working conditions of uneven liquid level in the pile hole in the cast-in-place pile construction.

[0040] Elevation control and equipment reset: When the first and second LED display pieces 211 and 212 on both sides are lit, stop mud pouring, complete pile top elevation control, and after the pouring operation is completed, pull out the tee grouting pipe 11 from the pile hole, the elastic recovery force of the first reset spring 24 pushes the sliding cylinder 23 to slide along the outer wall of the discharge end until the lower end of the sliding cylinder 23 reattaches to the lower limit ring 22, the trigger piece 27 separates from the conductive piece 26, and the equipment returns to the initial state, which can be used for the next pile top elevation operation.

[0041] The detection sliding block of the equipment on the market is mostly a hard contact structure, which is easy to cause detection precision to decrease due to impact deformation after long-term use; the buffer block 25 made of elastic rubber material reduces the contact impact between the sliding cylinder 23 and the upper limit ring 21, and the first reset spring 24 can automatically push the sliding cylinder 23 to reset without manual adjustment, which prolongs the service life of the parts and reduces the preparation time of repeated operations, and is more suitable for the operation needs of "high frequency and fast pace" in the construction site.

[0042] Dynamic conversion of mud flow rate: When the discharge end of the tee grouting pipe 11 discharges, the mud flows along the inner wall of the discharge end and impacts the inclined flow splitter in the middle of the connecting strip 35. Since the mud flow rate is dynamically fluctuating due to factors such as pumping pressure and pipeline resistance during pouring, the impact force generated by the change of flow rate will act on the flow splitter to form a component force along the axial direction of the tee grouting pipe 11.

[0043] When the mud flow rate increases, the impact force overcomes the pre-tightening force of the second reset spring 34, pushes the connecting strip 35 to drive the annular sliding piece 32 to slide along the outer wall of the discharge end of the tee grouting pipe 11 away from the positioning ring 31, and the second reset spring 34 is stretched; when the mud flow rate decreases, the elastic force of the second reset spring 34 pulls the annular sliding piece 32 to reset towards the positioning ring 31.

[0044] In this process, the annular sliding piece 32 makes a reciprocating linear motion along the outer wall of the discharge end, and the sliding stroke is determined by the elastic coefficient of the second reset spring 34 and the fluctuation amplitude of the mud flow rate; The connecting strip 35 is fixedly connected with the annular scraper 36, so that the reciprocating movement of the annular sliding sheet 32 synchronously drives the annular scraper 36 to reciprocate along the inner wall of the discharge end of the three-way grouting pipe 11, thereby scraping off the mud deposits attached to the inner wall of the discharge end, and realizing self-cleaning and anti-blocking of the discharge end.

[0045] Meanwhile, the mechanism does not require an additional power source and completely utilizes the flow rate fluctuation of the mud to realize self-driven scraping, which simplifies the device structure and avoids the failure risk of electrical elements in a humid construction environment. Meanwhile, the flow splitter can also optimize the mud flow trajectory and reduce the accumulation of deposits caused by local vortexes in the discharge end.

[0046] The device utilizes the flow rate fluctuation of the mud to drive the annular scraper 36 to reciprocate and scrape, without the need for additional power and manual intervention, which can continuously avoid the blockage of the discharge end of the three-way grouting pipe 11, is suitable for the harsh environment of a large amount of mud and high humidity in pile construction, reduces the on-site maintenance cost and failure probability of the device, and realizes the anti-blocking function through the inclined flow splitter in the middle of the connecting strip 35 to convert the mud power, in cooperation with the linkage of the second return spring 34 and the annular sliding sheet 32, which is simple in structure and strong in reliability.

[0047] The device can quickly match the construction requirements of different pile top elevations through the sliding adjustment of the telescopic rod 29 and the L-shaped connecting rod 28, can adapt to the operation of different pile types without replacing parts, improves the universality of the device, and is more suitable for the grouting operation scene of multiple specifications of pile bodies in the construction site; after adjustment, the initial height of the floating block 210 is fixed through the locking structure to accurately match the preset elevation, and the detection accuracy is ensured.

[0048] For those skilled in the art, although several embodiments and examples of the present application are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the application. These new embodiments can be implemented in other various ways, and various omissions, substitutions, changes can be made without departing from the scope of the application. These embodiments and their modifications are included in the scope and spirit of the application, and are included in the scope of the application and its equivalents described in the claims.

[0049] In addition, it should be understood that although the present specification is described in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description manner of the specification is only for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each example can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A device for controlling the top elevation of a mud-wall cast-in-place pile using a dual-point level measurement method, comprising a three-way grouting pipe (11), a triangular positioning frame (12), and a feed funnel (13), wherein the triangular positioning frame (12) is sleeved on the top of the three-way grouting pipe (11), and the top of the three-way grouting pipe (11) is connected to the feed funnel (13), characterized in that, The top of the three-way grouting pipe (11) is provided as a feeding end, the bottom of the three-way grouting pipe (11) is symmetrically provided with two discharge ends, the two discharge ends of the bottom of the three-way grouting pipe (11) are provided in an inclined manner, and the two discharge ends of the three-way grouting pipe (11) are each provided with a double-measurement-point detection assembly; The double-measurement-point detection assembly comprises an upper limiting ring (21), the upper limiting ring (21) is fixedly connected to the outer side of the bottom discharge end of the three-way grouting pipe (11), a lower limiting ring (22) is arranged below the upper limiting ring (21), a sliding cylinder (23) is arranged between the upper limiting ring (21) and the lower limiting ring (22), a plurality of first return springs (24) are arranged in an equidistant ring shape on the top of the sliding cylinder (23), the top of each first return spring (24) is fixedly connected to the upper limiting ring (21), and the bottom of each first return spring (24) is fixedly connected to the sliding cylinder (23).

2. The liquid level method double measuring point control mud pile wall bored pile top elevation equipment according to claim 1, characterized in that, The double-measurement-point detection assembly further comprises a conductive sheet (26), the conductive sheet (26) is fixedly connected to the outer wall of the bottom discharge end of the three-way grouting pipe (11), the inner wall of the sliding cylinder (23) is fixedly connected with a trigger sheet (27), and the triangular positioning frame (12) is respectively provided with a first LED display sheet (211) and a second LED display sheet (212).

3. The liquid level method two-point control mud-jacked pile top elevation equipment according to claim 2, characterized in that, The double-measurement-point detection assembly further comprises four L-shaped connecting rods (28), the four L-shaped connecting rods (28) are fixedly connected to the outer wall of the sliding cylinder (23) in a symmetrical manner, every two L-shaped connecting rods (28) form a group, the bottom of each group of L-shaped connecting rods (28) is slidably connected with an extension rod (29), and the ends, away from the L-shaped connecting rod (28), of every two extension rods (29) are fixedly connected with a floating block (210).

4. The liquid level method double measuring point control mud pile wall pile top elevation equipment according to claim 1, characterized in that, The two discharge ends of the three-way grouting pipe (11) are each provided with an anti-blocking scraping assembly, the anti-blocking scraping assembly comprises a positioning ring (31), the positioning ring (31) is fixedly connected to the outer side of the discharge end of the three-way grouting pipe (11), the bottom of the positioning ring (31) is fixedly connected with a second return spring (34), the end, away from the positioning ring (31), of the second return spring (34) is fixedly connected with a ring-shaped sliding sheet (32), and the inner part of the ring-shaped sliding sheet (32) is provided with a working groove (33).

5. The liquid level method two-point control mud-jacked pile top elevation equipment according to claim 4, characterized in that, The anti-blocking scraping assembly further comprises a connecting strip (35), the connecting strip (35) is fixedly connected to the bottom of the ring-shaped sliding sheet (32), the discharge end of the three-way grouting pipe (11) is slidably connected with a ring-shaped scraping sheet (36), and the bottom of the ring-shaped scraping sheet (36) is fixedly connected to the connecting strip (35).

6. The liquid level method two-point control mud-jacked pile top elevation equipment according to claim 1, characterized in that, The lower limiting ring (22) is fixedly connected to the outer side of the bottom discharge end of the three-way grouting pipe (11), and the sliding cylinder (23) is slidably connected to the outer wall of the bottom discharge end of the three-way grouting pipe (11).

7. The liquid level method two-point control mud-jacked pile top elevation equipment according to claim 1, characterized in that, The buffer blocks (25) and the first return springs (24) are arranged in an interlaced manner.

8. The liquid level method two-point control mud-jacked pile top elevation equipment according to claim 2, characterized in that, The conductive sheet (26) is arranged on the movement path of the sliding cylinder (23) and the trigger sheet (27), the first LED display sheet (211) and the second LED display sheet (212) have electrical connection relationship with two groups of conductive sheets (26) respectively, and the two trigger sheets (27) have electrical connection relationship with the power supply of the equipment.

9. The liquid level method two-point control mud-jacked pile top elevation equipment according to claim 4, characterized in that, The annular sliding sheet (32) is slidably connected outside the discharge end of the three-way grouting pipe (11), and is sleeved outside the positioning ring (31) and the second reset spring (34).

10. The liquid level method two-point control mud-jacked pile top elevation equipment according to claim 5, characterized in that, The middle part of the connecting strip (35) is provided with a shunt sheet in an inclined manner.

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