Inclinometer Pipe Embedding and Butt-Joint Method for Monitoring Horizontal Displacement of Pile Body

Abstract

The present application provides a method for burying and docking an inclinometer tube for monitoring the horizontal displacement of a pile body, belonging to the field of pile foundation construction. In the method for burying and docking an inclinometer tube for monitoring the horizontal displacement of a pile body, the pre-buried inclinometer tube is tied to one main reinforcement of the steel reinforcement cage to ensure the stability of the pre-buried inclinometer tube; a plurality of protective reinforcements are bundled and fixed around the tube head, and the opening of the tube head is blocked by the bent part at the top of the protective reinforcement to prevent large pieces of crushed stone from falling into the inclinometer tube and avoid blockage; the protective reinforcement can also prevent large pieces of crushed stone splashing during the removal of the pile head from directly hitting the inclinometer tube to avoid damage to the inclinometer tube; an inclinometer tube with an outward convex guide groove is adopted, each guide groove of the pre-buried inclinometer tube is abutted against a protective reinforcement, after the docking of the inclinometer tubes, each protective reinforcement is re-gathered outside the pre-buried inclinometer tube and the docking inclinometer tube, and each guide groove of the pre-buried inclinometer tube and the docking inclinometer tube is abutted against a protective reinforcement, ensuring accurate docking of the pre-buried inclinometer tube and the docking inclinometer tube and not easy dislocation of the guide grooves.

Description

Technical Field

[0001] This application belongs to the technical field of pile foundation construction, and more specifically, relates to a method for burying and docking inclinometers for monitoring the horizontal displacement of pile bodies. Background Art

[0002] With the rapid development of cities, the use of underground space is increasing, and deep and large foundation pits are constantly emerging, making the monitoring of the horizontal displacement of pile bodies increasingly crucial and important. However, it is difficult to ensure the survival rate of inclinometers for monitoring the horizontal displacement of pile bodies.

[0003] During pile body construction, pile foundation construction is first required. After the pile foundation hardens, the concrete at the pile head needs to be broken to continue the construction of the capping beam. During pile foundation construction, inclinometers are pre-buried. When the capping beam is constructed, inclinometers are continuously docked on the inclinometers of the pile foundation so that the entire inclinometer penetrates the pile body to measure and monitor the horizontal displacement of the entire pile body.

[0004] According to the data statistics of multiple construction sites, the damage rate of inclinometers during pile body construction is as high as 50% of the total; among them, the most damage is caused by the blockage of inclinometers due to broken pile heads, followed by the damage caused by the breakage and misalignment of the joints of inclinometers.

[0005] When breaking the pile head, broken concrete blocks are extremely likely to fall into the inclinometer, causing blockage of the inclinometer; moreover, construction workers often do not notify technicians for repair due to reasons such as rushing the progress or being slack, further increasing the blockage of the inclinometer. Currently, generally, when breaking the pile head to construct the capping beam, special technicians are assigned to monitor closely to standardize the operation of workers and prevent the inclinometer from being blocked. However, due to the large number of pile foundations reaching dozens or hundreds, technicians cannot fully monitor, and the blockage rate of the inclinometer is still relatively high.

[0006] When docking the inclinometer, the docking inclinometer needs to be strictly aligned with the pre-buried inclinometer in the pile foundation. On the one hand, it is necessary to ensure that the contact is sealed and no water or mud enters. On the other hand, it is also necessary to ensure that the guide grooves of the inclinometer are aligned so that the inclinometer can slide smoothly up and down along the guide grooves. However, in actual construction, due to the huge pressure of concrete during pouring, the main body part or the guide groove part of the docking inclinometer is extremely likely to be misaligned, resulting in the unusability of the inclinometer. Summary of the Invention

[0007] In view of this, the embodiments of this application provide a method for burying and docking inclinometers for monitoring the horizontal displacement of pile bodies to solve the technical problems of high blockage rate of inclinometers and easy misalignment at the docking joints in the prior art.

[0008] To achieve the above object, the technical solution adopted in this application is to provide a method for burying and docking inclinometers for monitoring the horizontal displacement of pile bodies, including:

[0009] Embedded inclinometer tube fixation: Pass the embedded inclinometer tube through the steel reinforcement cage. The embedded inclinometer tube has a plurality of outwardly protruding guide grooves, and tie the embedded inclinometer tube to one of the main steel bars of the steel reinforcement cage to ensure that one of the guide grooves of the embedded inclinometer tube abuts against the main steel bar;

[0010] Lifting the steel reinforcement cage: Lift the steel reinforcement cage into the pile hole and pour concrete. Before pouring, ensure that the embedded inclinometer tube is located on the soil-facing side of the pile;

[0011] Tube head protection: Before the poured concrete solidifies, tie and fix a plurality of protective steel bars around the tube head of the embedded inclinometer tube, and each guide groove of the embedded inclinometer tube abuts against one protective steel bar. The top of each protective steel bar is bent, and the lower end of the protective steel bar is inserted into the poured concrete, and the bent part at the top blocks the opening of the tube head of the embedded inclinometer tube;

[0012] Chiseling the pile head: After the poured concrete solidifies, chisel the pile head;

[0013] Tube head resection: Bend the upper parts of each of the protective steel bars outward to expose the tube head of the embedded inclinometer tube, and cut off the tube head part of the embedded inclinometer tube;

[0014] Inclinometer tube docking: Dock the docking inclinometer tube with the embedded inclinometer tube and fix it with waterproof tape winding, and ensure that the guide grooves of the embedded inclinometer tube and the docking inclinometer tube are opposite;

[0015] Protection at the docking part: Cut off the bent parts at the tops of each of the protective steel bars, and then gather each of the protective steel bars outside the docked embedded inclinometer tube and the docking inclinometer tube, and each guide groove of the embedded inclinometer tube and the docking inclinometer tube abuts against one protective steel bar, and then fix each of the protective steel bars to the embedded inclinometer tube and the docking inclinometer tube.

[0016] In some embodiments, in the tube head protection step: Tie and fix a plurality of protective steel bars around the tube head of the embedded inclinometer tube. Each side of each guide groove of the embedded inclinometer tube abuts against the protective steel bar, and the adjacent two protective steel bars clamp the guide groove of the embedded inclinometer tube in the middle.

[0017] In some embodiments, in the protection step at the docking part, when gathering each of the protective steel bars outside the docked embedded inclinometer tube and the docking inclinometer tube, each side of each guide groove of the embedded inclinometer tube and the docking inclinometer tube abuts against the protective steel bar, and the adjacent two protective steel bars clamp the guide grooves of the embedded inclinometer tube and the docking inclinometer tube in the middle.

[0018] In some embodiments, the diameter of the protective steel bar is greater than the protruding height of the guide groove of the embedded inclinometer tube.

[0019] In some embodiments, in the inclinometer tube docking step, two rigid collar rings are sleeved on the end of the docking inclinometer tube or the embedded inclinometer tube, and the notches on the two collar rings avoid the main reinforcement bars.

[0020] In the protection step at the docking part, by sliding the two collar rings along the docking inclinometer tube and the embedded inclinometer tube at the docking part, after each of the protection bars is re-gathered outside the embedded inclinometer tube and the docking inclinometer tube at the docking part, the two collar rings are respectively tightened on the parts of each of the protection bars gathered outside the embedded inclinometer tube and on the parts of each of the protection bars gathered outside the docking inclinometer tube, and the two ends of each of the collar rings are respectively welded to the main reinforcement bars.

[0021] In some embodiments, mounting holes are provided on the side wall of the collar ring, and a limiting member is installed in the mounting holes, so that the limiting member extends into the inner side of the collar ring and is limited on the side of the protection bar away from the guide groove to ensure that the protection bar abuts against the guide groove.

[0022] In some embodiments, the mounting holes are long holes along the circumferential direction of the collar ring, and the limiting member includes a limiting nut placed inside the collar ring;

[0023] The limiting nut is abutted against the side of the protection bar away from the guide groove, and then the position of the limiting nut is fixed by using a bolt passing through the mounting hole to ensure that the protection bar abuts against the guide groove.

[0024] In some embodiments, in the tube head protection step, after bundling and fixing a plurality of protection bars around the tube head of the embedded inclinometer tube, a protective tape is wound around each of the protection bars and the embedded inclinometer tube to wrap and seal the opening of the tube head of the embedded inclinometer tube.

[0025] In some embodiments, in the tube head protection step, a plug is inserted into the opening of the tube head of the embedded inclinometer tube, and the bent part at the top of the protection bar presses the plug.

[0026] The beneficial effects of the inclinometer tube embedding and docking method for pile horizontal displacement monitoring provided by the embodiments of the present application are as follows: Compared with the prior art, in the inclinometer tube embedding and docking method for pile horizontal displacement monitoring provided by the embodiments of the present application, the embedded inclinometer tube is tied to one of the main reinforcements of the steel reinforcement cage to ensure the stability of the embedded inclinometer tube; a plurality of protective reinforcements are bundled and fixed around the tube head, and the bent part at the top of the protective reinforcement is used to block the opening of the tube head to prevent large pieces of gravel from falling into the inclinometer tube and avoid blocking of the inclinometer tube when the pile head is chiseled; moreover, the protective reinforcement can also prevent large pieces of gravel splashing directly impact the inclinometer tube to avoid damage to the inclinometer tube when the pile head is chiseled; in addition, an inclinometer tube with an outward convex guide groove is used, each guide groove of the embedded inclinometer tube abuts against a protective reinforcement, after the docking of the inclinometer tubes, each protective reinforcement is re-gathered outside the docked embedded inclinometer tube and the docking inclinometer tube, and each guide groove of the embedded inclinometer tube and the docking inclinometer tube abuts against a protective reinforcement, ensuring accurate docking of the embedded inclinometer tube and the docking inclinometer tube and not easy dislocation of the guide grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a flowchart of the inclinometer tube embedding and docking method for pile horizontal displacement monitoring provided by the embodiments of the present application;

[0029] Figure 2 is Figure 1 a top view of the embedded inclinometer tube tied to the main reinforcement after the fixed step of the embedded inclinometer tube;

[0030] Figure 3 is Figure 2 an enlarged view of part A in

[0031] Figure 4 is Figure 1 a front view of each protective reinforcement fixed to the embedded inclinometer tube and the docking inclinometer tube through a collar after the protection step at the docking part;

[0032] Figure 5 is Figure 4 a top view of each protective reinforcement fixed to the embedded inclinometer tube through a collar.

[0033] Among them, the reference numerals in the drawings are as follows:

[0034] 1 - steel reinforcement cage; 11 - main reinforcement; 2 - embedded inclinometer tube; 21 - guide groove; 3 - protective reinforcement; 4 - collar; 5 - limit nut; 6 - docking inclinometer tube. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] Please also read Figure 1 The method for burying and docking a pile horizontal displacement monitoring inclinometer pipe provided in the embodiment of the present application is now described. A method for burying and docking a pile horizontal displacement monitoring inclinometer pipe comprises:

[0037] The pre-embedded inclinometer tube 2 is fixed: the pre-embedded inclinometer tube 2 is inserted into the steel cage 1, the pre-embedded inclinometer tube 2 has a plurality of outwardly protruding guide grooves 21, and the pre-embedded inclinometer tube 2 is tied to a main reinforcement 11 of the steel cage 1, ensuring that a guide groove 21 of the pre-embedded inclinometer tube 2 is close to the main reinforcement 11;

[0038] Lifting the steel cage 1: Lift the steel cage 1 into the pile hole and pour it. Before pouring, ensure that the pre-buried inclinometer tube 2 is located on the soil facing side of the pile;

[0039] Pipe head protection: before the poured concrete solidifies, multiple protective ribs 3 are tied and fixed around the head of the pre-embedded inclinometer tube 2, and each guide groove 21 of the pre-embedded inclinometer tube 2 is in contact with a protective rib 3, the top of each protective rib 3 is bent, the lower end of the protective rib 3 is inserted into the poured concrete, and the bent part of the top blocks the opening of the head of the pre-embedded inclinometer tube 2; during the specific operation, the heights of the tops of the protective ribs 3 are different, and the bent parts of the protective ribs 3 cross each other to block the opening of the head of the pre-embedded inclinometer tube 2;

[0040] Chisel off the pile head: After the poured concrete solidifies, chisel off the pile head;

[0041] Cutting off the pipe head: bend the upper part of each protective rib 3 outwards to expose the pipe head of the pre-buried inclinometer pipe 2, and cut off the pipe head part of the pre-buried inclinometer pipe 2;

[0042] Inclinometer pipe docking: dock the docking inclinometer pipe 6 with the pre-buried inclinometer pipe 2 and fix them with waterproof tape, and ensure that the guide grooves 21 of the pre-buried inclinometer pipe 2 and the docking inclinometer pipe 6 are opposite;

[0043] Protection of the joint: cut off the bent part at the top of each protective rib 3, and then gather each protective rib 3 again outside the embedded inclinometer tube 2 and the docking inclinometer tube 6, and each guide groove 21 of the embedded inclinometer tube 2 and the docking inclinometer tube 6 is in contact with a protective rib 3, and then fix each protective rib 3 to the embedded inclinometer tube 2 and the docking inclinometer tube 6.

[0044] Compared with the prior art, in the method for burying and docking the inclinometer tube for monitoring the horizontal displacement of the pile body according to the embodiment of the present application, the pre-buried inclinometer tube 2 is tied to a main reinforcement 11 of the steel reinforcement cage 1 to ensure the stability of the pre-buried inclinometer tube 2; a plurality of protective reinforcements 3 are bundled and fixed around the tube head, and the bent portions at the tops of the protective reinforcements 3 are used to block the opening of the tube head to prevent large pieces of gravel from falling into the inclinometer tube and avoid blockage of the inclinometer tube when the pile head is chiseled; moreover, the protective reinforcements 3 can also prevent large pieces of gravel splashing directly impact the inclinometer tube to a certain extent when the pile head is chiseled and avoid damage to the inclinometer tube; in addition, an inclinometer tube with an outwardly convex guide groove 21 is adopted, and each guide groove 21 of the pre-buried inclinometer tube 2 abuts against a protective reinforcement 3. After the docking of the inclinometer tubes, each protective reinforcement 3 is re-gathered outside the docked pre-buried inclinometer tube 2 and the docking inclinometer tube 6, and each guide groove 21 of the pre-buried inclinometer tube 2 and the docking inclinometer tube 6 abuts against a protective reinforcement 3, ensuring accurate docking of the pre-buried inclinometer tube 2 and the docking inclinometer tube 6 and preventing the guide grooves 21 from being misaligned.

[0045] Please refer to Figures 1 to 5 , as a specific implementation manner of the method for burying and docking the inclinometer tube for monitoring the horizontal displacement of the pile body provided by the present application, in the tube head protection step: a plurality of protective reinforcements 3 are bundled and fixed around the tube head of the pre-buried inclinometer tube 2, and each guide groove 21 of the pre-buried inclinometer tube 2 is respectively abutted by a protective reinforcement 3 on both sides, and the adjacent two protective reinforcements 3 sandwich the guide groove 21 of the pre-buried inclinometer tube 2 in the middle.

[0046] In this embodiment, the adjacent two protective reinforcements 3 form a protection on both sides of the guide groove 21 to prevent the guide groove 21 from being damaged by external gravel and the like.

[0047] In specific implementation, taking the pre-buried inclinometer tube 2 with four guide grooves 21 as an example, in the tube head protection step, eight protective reinforcements 3 are arranged around the pre-buried inclinometer tube 2, and one protective reinforcement 3 is respectively arranged on both sides of each guide groove 21, and the eight protective reinforcements 3 are just sandwiched on both sides of the four guide grooves 21.

[0048] The lower ends of the eight protective reinforcements 3 are inserted into the uncured concrete, and the bent portions at the upper ends face the center of the opening of the pre-buried inclinometer tube 2, and the eight protective reinforcements 3 are bundled and fixed around the pre-buried inclinometer tube 2 by binding wires. After the poured concrete solidifies, the lower ends of the protective reinforcements 3 are fixed, so that the eight protective reinforcements 3 surround the pre-buried inclinometer tube 2.

[0049] In the tube head cutting step, the binding wires can be untied, and then the upper parts of the respective protective reinforcements 3 are bent away from the outside of the pre-buried inclinometer tube 2 to separate the protective reinforcements 3 from the pre-buried inclinometer tube 2, facilitating the cutting of the tube head part of the pre-buried inclinometer tube 2.

[0050] Please refer to Figures 1 to 5, as a specific implementation of the inclinometer tube embedding and docking method for pile horizontal displacement monitoring provided in this application, in the protection step at the docking location, when gathering each protective bar 3 around the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6 to be docked, a protective bar 3 is respectively attached to both sides of each guide groove 21 of the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6, and two adjacent protective bars 3 sandwich the guide grooves 21 of the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6 in the middle.

[0051] In this embodiment, two adjacent protective bars 3 sandwich the guide grooves 21 of the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6 in the middle, so that the guide groove 21 of the pre-embedded inclinometer tube 2 and the guide groove 21 of the docking inclinometer tube 6 are accurately docked and not easily displaced.

[0052] In specific implementation, taking the pre-embedded inclinometer tube 2 with four guide grooves 21 as an example, in the tube head protection step, eight protective bars 3 are arranged around the pre-embedded inclinometer tube 2, and one protective bar 3 is respectively arranged on both sides of each guide groove 21. The eight protective bars 3 are exactly sandwiched on both sides of the four guide grooves 21.

[0053] The lower ends of the eight protective bars 3 are inserted into the unhardened concrete, and the bent parts at the upper ends face the center of the opening of the pre-embedded inclinometer tube 2. The eight protective bars 3 are tied and fixed around the pre-embedded inclinometer tube 2 by binding wires. After the poured concrete hardens, the lower ends of the protective bars 3 are fixed, so that the eight protective bars 3 surround the pre-embedded inclinometer tube 2.

[0054] In the tube head cutting step, the tube head part of the pre-embedded inclinometer tube 2 is cut off, so that the docking position of the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6 is within the length range of the protective bars 3. In the inclinometer tube docking step, the docking inclinometer tube 6 with four guide grooves 21 is docked with the pre-embedded inclinometer tube 2, and the four guide grooves 21 of the docking inclinometer tube 6 are aligned with the four guide grooves 21 of the pre-embedded inclinometer tube 2. Then, the eight protective bars 3 are restored to the vertical state and gathered around the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6 to be docked again, so that two adjacent protective bars 3 sandwich the guide grooves 21 of the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6 in the middle, accurately docked and not easily displaced.

[0055] Please refer to Figure 3 and Figure 5 , as a specific implementation of the inclinometer tube embedding and docking method for pile horizontal displacement monitoring provided in this application, the diameter of the protective bar 3 is greater than the protruding height of the guide groove 21 of the pre-embedded inclinometer tube 2.

[0056] In this embodiment, the protruding height of the protective bar 3 outside the pre-embedded inclinometer tube 2 is greater than the protruding height of the guide groove 21. When external gravel etc. impacts the pre-embedded inclinometer tube 2, it will first collide with the protective bar 3, thereby reducing the damage to the guide groove 21.

[0057] In specific implementation, the guide groove 21 can be in contact with the protective rib 3 on only one side, or can be in contact with the protective rib 3 on both sides, further improving the protection ability.

[0058] Please refer to Figure 3 and Figure 5 As a specific implementation manner of the inclinometer tube embedding and docking method for pile horizontal displacement monitoring provided by the present application, in the step of docking the inclinometer tubes, two rigid collar rings 4 are sleeved on the end of the docking inclinometer tube 6 or the pre-embedded inclinometer tube 2, and the notches on the two collar rings 4 avoid the main reinforcement 11;

[0059] In the step of protecting the docking part, by sliding the two collar rings 4 along the docking inclinometer tube 6 and the pre-embedded inclinometer tube 2, after each protective rib 3 is re-gathered outside the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6 for docking, the two collar rings 4 are respectively tightened on the parts of each protective rib 3 gathered outside the pre-embedded inclinometer tube 2 and the parts of each protective rib 3 gathered outside the docking inclinometer tube 6, and the two ends of each of the two collar rings 4 are respectively welded to the main reinforcement 11.

[0060] In this embodiment, the two collar rings 4 tighten the re-gathered protective ribs 3 outside the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6, ensuring that the protective ribs 3 are in close contact with the outer walls of the pre-embedded inclinometer tube 2 and the docking inclinometer tube 6. Since the protective rib 3 itself is a steel bar, compared with using the same steel bar to gather the protective ribs 3, this solution uses a rigid collar ring 4, which has a stronger binding force on the protective rib 3. Welding the two ends of the two collar rings 4 to the main reinforcement 11 respectively further improves the firmness of the overall structure.

[0061] In specific implementation, the collar ring 4 can be made of cemented carbide, or can be formed by bending a steel bar and then improving the hardness through a heat treatment process. Each protective rib 3 can be welded and fixed to the two collar rings 4 respectively to fix the position of the protective rib 3 and ensure that the protective rib 3 is in contact with the guide groove 21.

[0062] Please refer to Figure 5 As a specific implementation manner of the inclinometer tube embedding and docking method for pile horizontal displacement monitoring provided by the present application, an installation hole is provided on the side wall of the collar ring 4, and a limiting member is installed in the installation hole, so that the limiting member extends into the inner side of the collar ring 4 and is limited on the side of the protective rib 3 away from the guide groove 21 to ensure that the protective rib 3 is in contact with the guide groove 21.

[0063] In specific implementation, protective ribs 3 are respectively attached to both sides of the guide groove 21, and limiting members are respectively provided on the sides of the two protective ribs 3 away from the guide groove 21.

[0064] Please refer to Figure 5 As a specific implementation manner of the inclinometer tube embedding and docking method for pile horizontal displacement monitoring provided by the present application, the installation hole is a long hole along the circumferential direction of the collar ring 4, and the limiting member includes a limiting nut 5 placed inside the collar ring 4;

[0065] The limiting nut 5 is pressed against the side of the protective rib 3 away from the guide groove 21 , and then the position of the limiting nut 5 is fixed by passing a bolt through the mounting hole to ensure that the protective rib 3 is in close contact with the guide groove 21 .

[0066] In this embodiment, the collar 4 has a plurality of mounting holes distributed circumferentially, each of which is a long hole. The mounting holes are long holes, which can flexibly adjust the position of the limiting nut 5 and facilitate the limiting nut 5 to limit the protective rib 3.

[0067] See also Figure 2 As a specific implementation method of the pile horizontal displacement monitoring inclinometer pipe burying and docking method provided in the present application, in the pipe head protection step, after a plurality of protective ribs 3 are bundled and fixed around the pipe head of the pre-buried inclinometer pipe 2, a protective belt is used to wrap around each protective rib 3 and the outside of the pre-buried inclinometer pipe 2 to wrap and seal the opening of the pipe head of the pre-buried inclinometer pipe 2.

[0068] In this embodiment, after a plurality of protective ribs 3 are bound and fixed around the head of the pre-buried inclinometer tube 2, although large pieces of gravel can enter the inclinometer tube and can be prevented from directly hitting the inclinometer tube to a certain extent, small gravel cannot be prevented; a protective belt is wrapped around each protective rib 3 and the outside of the pre-buried inclinometer tube 2 to wrap and seal the opening of the head of the pre-buried inclinometer tube 2, which can further prevent small gravel.

[0069] In actual implementation, the protective belt can be made of soft belts commonly found on construction sites, such as hemp rope and braided rope.

[0070] See also Figure 2 As a specific implementation method of the pile horizontal displacement monitoring inclinometer pipe burying and docking method provided in the present application, in the pipe head protection step, a plug is inserted into the opening of the pipe head of the pre-buried inclinometer pipe 2, and the bent part at the top of the protective rib 3 presses the plug tightly.

[0071] In this embodiment, inserting a plug into the opening of the pre-buried inclinometer tube 2 can completely prevent large and small gravels from entering the inclinometer tube, and the bent portion at the top of the protective rib 3 presses the plug to prevent the plug from loosening under the impact of gravels.

[0072] In a specific implementation, the plug may be a wooden plug, or cloth may be wrapped around the outside of the wooden plug.

[0073] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. Method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies, characterized in that, Including: Embedded inclinometer tube fixation: Pass the embedded inclinometer tube through the steel reinforcement cage. The embedded inclinometer tube has a plurality of outwardly protruding guide grooves, and tie the embedded inclinometer tube to one of the main steel bars of the steel reinforcement cage to ensure that one of the guide grooves of the embedded inclinometer tube abuts against the main steel bar; Lifting the steel reinforcement cage: Lift the steel reinforcement cage into the pile hole and pour concrete. Before pouring, ensure that the embedded inclinometer tube is located on the soil-facing side of the pile; Pipe head protection: Before the poured concrete solidifies, tie and fix a plurality of protective steel bars around the pipe head of the embedded inclinometer tube, and each guide groove of the embedded inclinometer tube abuts against a protective steel bar. The tops of the protective steel bars are bent, and the lower ends of the protective steel bars are inserted into the poured concrete, and the bent parts at the tops block the openings of the pipe heads of the embedded inclinometer tubes; Chiseling the pile head: After the poured concrete solidifies, chisel the pile head; Pipe head cutting: Bend the upper parts of the respective protective steel bars outward to expose the pipe head of the embedded inclinometer tube, and cut off the pipe head part of the embedded inclinometer tube; Inclinometer tube docking: Dock the docking inclinometer tube with the embedded inclinometer tube and wrap and fix it with waterproof tape, and ensure that the guide grooves of the embedded inclinometer tube and the docking inclinometer tube are opposite; Protection at the docking place: Cut off the bent parts at the tops of the respective protective steel bars, and then gather the respective protective steel bars outside the docked embedded inclinometer tube and the docking inclinometer tube, and each guide groove of the embedded inclinometer tube and the docking inclinometer tube abuts against a protective steel bar, and then fix the respective protective steel bars to the embedded inclinometer tube and the docking inclinometer tube; 2. The method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies according to claim 1, characterized in that, In the pipe head protection step: Tie and fix a plurality of protective steel bars around the pipe head of the embedded inclinometer tube. Each side of each guide groove of the embedded inclinometer tube abuts against the protective steel bar, and the adjacent two protective steel bars sandwich the guide groove of the embedded inclinometer tube in the middle; 3. The method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies according to claim 1, characterized in that, In the protection step at the docking place, when gathering the respective protective steel bars outside the docked embedded inclinometer tube and the docking inclinometer tube, each side of each guide groove of the embedded inclinometer tube and the docking inclinometer tube abuts against the protective steel bar, and the adjacent two protective steel bars sandwich the guide grooves of the embedded inclinometer tube and the docking inclinometer tube in the middle; 4. The method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies according to claim 1, characterized in that, The diameter of the protective steel bar is greater than the protruding height of the guide groove of the embedded inclinometer tube; 5. The method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies according to claim 1, characterized in that, In the inclinometer tube docking step, two rigid collar rings are sleeved on the end of the docking inclinometer tube or the embedded inclinometer tube, and the notches on the two collar rings avoid the main steel bars; In the protection step at the docking place, by sliding the two collar rings along the docked docking inclinometer tube and the embedded inclinometer tube, after the respective protective steel bars are gathered outside the docked embedded inclinometer tube and the docking inclinometer tube, make the two collar rings respectively tighten on the parts of the respective protective steel bars gathered outside the embedded inclinometer tube and the parts of the respective protective steel bars gathered outside the docking inclinometer tube, and weld the two ends of each collar ring to the main steel bar respectively; 6. The method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies according to claim 5, characterized in that, Installation holes are provided on the side wall of the collar ring, and a limiting member is installed in the installation hole, so that the limiting member extends into the inner side of the collar ring and is limited on the side of the protective steel bar away from the guide groove to ensure that the protective steel bar abuts against the guide groove.

7. The method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies according to claim 6, characterized in that, The mounting hole is a long hole along the circumferential direction of the collar, and the limiting member includes a limiting nut placed inside the collar; Press the limiting nut against the side of the protective rib away from the guide groove, and then use a bolt to pass through the mounting hole to fix the position of the limiting nut, ensuring that the protective rib abuts against the guide groove.

8. The method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies according to claim 1, characterized in that, In the pipe head protection step, after bundling and fixing a plurality of protective ribs around the pipe head of the embedded inclinometer tube, a protective tape is wound around each of the protective ribs and the embedded inclinometer tube to wrap and seal the opening of the pipe head of the embedded inclinometer tube.

9. The method for burying and butt - jointing inclinometer tubes for monitoring horizontal displacement of pile bodies according to claim 1, characterized in that, In the pipe head protection step, a plug is inserted into the opening of the pipe head of the embedded inclinometer tube, and the bent portion at the top of the protective rib presses against the plug.

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