Horizontal jacking structure height difference measuring device and using method thereof

Abstract

The invention provides a horizontal jacking structure height difference measuring device which comprises a height measuring piece and a follower installed on a pipe body, the height measuring piece comprises a barrel body, the barrel body is of a cylindrical structure with a cavity inside, the barrel body is perpendicular to the axis direction of the pipe body, a first communication opening is formed in the lower end of the barrel body, and a second communication opening is formed in the lower end of the barrel body. A flexible bottom communicating pipe is communicated between the first communicating port and the follower, the upper end of the barrel body and the upper end of the follower are communicated with the outside, liquid is arranged in the barrel body and the follower, and the problem that height deviation is difficult to measure when a horizontal propelling structure is constructed in underground engineering is solved.

Description

Technical Field

[0001] The invention relates to the field of jacking construction, and in particular to a device for measuring the height difference of a horizontal jacking structure and a method for using the device. Background Art

[0002] With the progress of the times and the development of society, tunnels and underground projects have received more and more attention from people and are widely used in transportation and logistics, municipal facilities, water conservancy and hydropower, resource storage, mineral development, national defense construction and other fields. Fully developing and utilizing underground space is an inevitable trend for the sustainable development of cities. At present, urban underground engineering construction has entered a new period of development. In underground engineering construction, horizontal jacking structures are widely used, such as pipe curtains and jacking pipes, and their vertical displacement monitoring is the focus and difficulty of construction.

[0003] In the traditional way, before the construction of pipe jacking or pipe curtain, a reference point is set near the working well or receiving well, and a high-precision level is usually used to determine the elevation of this reference point. As the pipe jacking advances, workers will regularly use a level to measure the height difference between the front end of the pipe jacking and the reference point to determine the height of the front end of the pipe jacking. Although this method is direct, it is cumbersome to operate and is easily affected by the environment.

[0004] Another way is to install an inclination sensor on the jacking pipe or pipe curtain, which can obtain the inclination angle and position information of the front end of the jacking pipe in real time. Combined with the known jacking pipe length and initial height, the current height of the front end of the jacking pipe can be calculated. However, the disadvantage is that the inclination sensor is relatively fragile, easily damaged, and requires continuous power supply. Summary of the invention

[0005] The invention provides a device for measuring the height difference of a horizontal jacking structure and a method for using the device, which solves the problem of difficulty in measuring height deviation when a structure is pushed horizontally in underground engineering construction.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a device for measuring the height difference of a horizontal jacking structure, comprising a height measuring piece and a follower installed on a pipe body, the height measuring piece comprising a barrel body, the barrel body is a cylindrical structure with a cavity inside, the barrel body is perpendicular to the axial direction of the pipe body, a first connecting port is provided at the lower end of the barrel body, a flexible bottom connecting pipe is connected between the first connecting port and the follower, the upper ends of the barrel body and the follower are connected to the outside, and liquid is provided in the barrel body and the follower.

[0007] In the preferred embodiment, the height measuring piece also includes a height measuring piece adjustment device, which is provided with a base, on which are provided two brackets arranged in parallel and opposite to each other, on which are provided strip grooves, and a ring frame, on which are provided an insertion rod portion, which is rotatably connected to the outer wall of the upper end of the barrel body, and on which are provided two screw portions, each screw portion is sleeved with a threaded locking knob, which is inserted in the strip groove, and the insertion rod portion is arranged vertically to the screw portion.

[0008] In the preferred embodiment, the upper end of the barrel body is open and provided with a protective cover with a threaded connection, the inner wall of the protective cover is provided with a plurality of air-guiding notches along the circumferential direction, the inner top wall of the protective cover is provided with a plurality of air-guiding grooves, one end of the air-guiding groove is connected to the air-guiding notch, and the barrel body and the interior of the barrel body are connected to the air-guiding grooves.

[0009] In a preferred solution, the follower is a C-shaped ring, and a liquid is arranged inside the C-shaped ring.

[0010] In the preferred embodiment, the C-shaped ring includes a symmetrically arranged left half ring and a right half ring, a balancing air port is provided at the upper end of the left half ring and the right half ring, the lower ends of the left half ring and the right half ring are connected but not connected, a connecting air port is provided at the lower end of the left half ring and the right half ring, a cavity is provided in the left half ring and the right half ring, a partition plate is provided in the center of the barrel body, the partition plate divides the cavity inside the barrel body into compartments of equal volume, liquid is provided in the compartments and the cavity, each compartment is respectively provided with a third connecting port and a first connecting port, there are two bottom connecting tubes, one end of each bottom connecting tube is connected to each connecting air port, and the other end of each bottom connecting tube is respectively connected to the third connecting port and the first connecting port.

[0011] In the preferred solution, an annular guide portion is provided on the outer wall of the front end of the tube body, a dorsal space is provided on the rear side of the annular guide portion, a C-shaped ring is arranged in the dorsal space, and a stop ring is sleeved on the outer wall of the tube body, the stop ring abuts against the rear end of the C-shaped ring and blocks the dorsal space.

[0012] In the preferred solution, a plurality of protective tube structures are provided along the circumferential direction on the outer wall of the tube body, a dividing rib is provided in the center of the protective tube structure to divide the interior of the protective tube structure into two independent channels, two bottom connecting tubes respectively pass through the independent channels of the protective tube structure at the lowermost end of the tube body to be connected with the third connecting port and the first connecting port respectively, two top ventilation tubes are also provided, one end of each top ventilation tube is connected with the balance air port, and the other end passes through the independent channels of the protective tube structure to be connected with the outside, a plurality of avoidance gaps are provided along the circumferential direction of the stop ring, and an arc-shaped protective plate is provided on one side of each avoidance gap, and the arc-shaped protective plate covers the protective tube structure near the annular guide portion.

[0013] In the preferred embodiment, each compartment of the barrel body has a through threaded hole at the lower end, a plugging screw is threadedly connected to the through threaded hole, an L-shaped leakage hole is provided in the plugging screw, one end of the leakage hole is provided on the outer wall of the plugging screw, and the other end is connected to the outside.

[0014] In a preferred embodiment, the follower is a barrel body with a cavity inside, a second connecting port is provided at the lower end of the barrel body, the upper end of the barrel body is connected to the outside, and liquid is provided inside the barrel body.

[0015] The method of use includes: lifting the jacking structure to the jacking height and adjusting the level of the pipe body; Install the height measuring piece and the C-ring separately; The stop ring is sleeved on the pipe body so that each arc-shaped protective sheet is close to each protective pipe structure; Pass the bottom connecting pipe and the top ventilation pipe through the protective pipe structure, and connect the height measuring piece and the C-shaped ring at both ends of the bottom connecting pipe and the top ventilation pipe respectively; Put the C-shaped ring on the tail end of the tube body, and fill the left and right half rings with liquid so that the liquid level is at the middle position; Fix the height of the height measuring piece, and adjust the initial liquid level height of the compartment in the barrel body to the same height and to zero scale; Slide the C-ring horizontally into the back space, observe the liquid level in the barrel, and verify the horizontal condition of the tube; Slide the stop ring horizontally until the end face is pressed against the C-ring, and fix the stop ring on the pipe body; Carry out jacking construction and monitor the liquid level changes in the two compartments of the barrel in real time; After the measurement is completed, remove the measuring device.

[0016] The beneficial effects of the present invention are as follows: stable measurement, the law of conservation of water volume and the principle of communicating vessels are adopted to ensure that the vertical displacement during the construction of the jacking structure can be measured without being disturbed by the soil during the jacking process; convenient installation, low manufacturing cost, simple structure, and no need for complex electronic control equipment; the follower adopts a C-shaped ring structure, which is attached to the concave structure side of the rear end of the annular guide part of the pipe body, so that the circumferential protrusion of the pipe body is more uniform, and the protrusion amount is reduced, which greatly reduces the jacking resistance; a double communicating vessel design is adopted to detect the height difference and monitor the spinning posture of the pipe body at the same time; the communicating pipe and the vent pipe are protected by a dual-channel protective pipe structure, the C-shaped ring is compressed by a stop ring, and the gap between the protective pipe structure and the back space of the annular guide part is protected by an arc-shaped protective sheet to prevent soil from entering to block the channel and damage the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the main height measurement component.

[0019] Figure 2 It is a schematic diagram of the height measuring component.

[0020] Figure 3 It is a schematic diagram of the follower.

[0021] Figure 4It is a half-section view of the follower.

[0022] Figure 5 It is a schematic diagram of the height measuring piece and the bracket.

[0023] Figure 6 This is a schematic diagram of the upper part of the bracket.

[0024] Figure 7 It is a schematic diagram of the ring frame.

[0025] Figure 8 This is a schematic diagram of the follower installed on the pipe curtain.

[0026] Fig. 9 This is a picture of the inside of the protective cover.

[0027] Fig.10 It is a schematic diagram of a tube body with a C-ring.

[0028] Fig.11 This is an exploded view of the tube body with a C-ring.

[0029] Fig.12 This is a cross-sectional view of the C-ring installation.

[0030] Fig.13 It is the layout diagram of connecting pipes and ventilation pipes.

[0031] Fig.14 It is a schematic diagram of the internal compartment of the barrel.

[0032] In the figure: height measuring member 1; barrel body 101; third communication port 102; first communication port 103; protective cover 104; air guide notch 105; air guide sink 106; partition plate 107; plug screw 108; leakage hole 109; follower 2; barrel body 201; second communication port 202; filter element 203; bottom communication pipe 3; top ventilation pipe 301; height measuring member adjustment device 4; ring frame 401; bracket 402; locking knob 40 3; base 404; strip groove 405; screw part 406; plug part 407; tube body 5; hook structure 501; oblique stop 502; tube protection structure 503; separation rib 504; C-shaped ring 6; left half ring 601; right half ring 602; balance air port 603; connecting air port 604; cavity part 605; annular guide part 7; back space 701; stop ring 8; mounting ear 801; arc-shaped protective plate 802; avoidance gap 803. DETAILED DESCRIPTION

[0033] Embodiment 1: like Figure 1-14In the present invention, a device for measuring the height difference of a horizontal jacking structure includes a height measuring piece 1 and a follower 2 installed on a pipe body 5. The height measuring piece 1 includes a barrel body 101. The barrel body 101 is a cylindrical structure with a cavity inside. The barrel body 201 is perpendicular to the axial direction of the pipe body 5. A first connecting port 103 is provided at the lower end of the barrel body 101. A flexible bottom connecting pipe 3 is connected between the first connecting port 103 and the follower 2. The upper ends of the barrel body 101 and the follower 2 are connected to the outside. Liquid is provided in the barrel body 101 and the follower 2.

[0034] The barrel 101 is provided with vertical scale lines, the height measuring piece 1 is fixed on the ground or the wall, and the follower 2 follows the pipe 5 to push horizontally. Initially, the liquid in the follower 2 is adjusted to the middle height. At this time, the height of the height measuring piece 1 is adjusted so that the water surface is at zero position. When the pipe 5 pushes forward, the height of the liquid level in the barrel 101 is monitored. The follower 2 is installed at the front end of the pipe 5. According to the principle of communicating vessels, when the liquid level in the barrel 101 increases, it means that the pipe 5 is moving upward, and when the liquid level in the barrel 101 decreases, it means that the pipe 5 is moving downward. According to the height difference direction, the pushing direction of the pipe 5 is adjusted immediately, so that the pipe 5 is always pushed horizontally.

[0035] In the preferred embodiment, the height measuring piece 1 also includes a height measuring piece adjusting device 4, which is provided with a base 404, on which are provided two parallel and oppositely arranged brackets 402, on which are provided strip grooves 405, and a ring frame 401, on which are provided an insertion rod portion 407, which is rotatably connected to the outer wall of the upper end of the barrel body 101, and on which are provided two screw rod portions 406, each screw rod portion 406 is provided with a threaded locking knob 403, which is inserted in the strip groove 405, and the insertion rod portion 407 is arranged vertically to the screw rod portion 406.

[0036] When the locking knob 403 is loosened, the ring frame 401 can move up and down with the barrel body 101, the base 404 can be parallel to the length direction of the barrel body 101, the base 404 can stand on the ground, the base 404 can be perpendicular to the length direction of the barrel body 101, and the bottom end of the base 404 is installed on the wall. Both methods adjust the barrel body 101 to be vertical. At this time, the locking knob 403 is locked to clamp the bracket 402, and the height of the ring frame 401 is fixed.

[0037] In the preferred embodiment, the upper end of the barrel body 101 is open and is provided with a protective cover 104 with a threaded connection. The inner wall of the protective cover 104 is provided with a plurality of air-guiding notches 105 along the circumferential direction. The inner top wall of the protective cover 104 is provided with a plurality of air-guiding grooves 106. One end of the air-guiding groove 106 is connected to the air-guiding notch 105. The barrel body 101 and the interior of the barrel body 201 are connected to the air-guiding groove 106.

[0038] The protective covers 104 of the height measuring member 1 and the follower 2 have the same structure. The protective covers 104 are ventilated through fine grooves to prevent the upper end from being directly connected to the outside, thereby achieving a dust-proof effect. For the follower 2, it can also prevent soil from entering the follower 2 during jacking.

[0039] In a preferred solution, the follower 2 is a C-shaped ring 6 , and a liquid is arranged inside the C-shaped ring 6 .

[0040] The follower 2 is made into a C-shaped ring 6, and the C-shaped ring 6 surrounds the inner wall or the outer wall of the tube body 5. Since the protruding structure is more uniform, the jacking resistance can be reduced.

[0041] And because the total volume inside the C-shaped ring 6 is larger, the amount of liquid that can be contained increases, and the height difference from the lowest end to the highest end increases, the allowable liquid level difference variation increases, so that the measurable range of the height difference increases.

[0042] In the preferred embodiment, the C-shaped ring 6 includes a left half ring 601 and a right half ring 602 which are symmetrically arranged, and a balancing air port 603 is respectively provided at the upper end of the left half ring 601 and the right half ring 602. The lower ends of the left half ring 601 and the right half ring 602 are connected but not connected, and a connecting air port 604 is respectively provided at the lower end of the left half ring 601 and the right half ring 602. A cavity portion 605 is provided in the left half ring 601 and the right half ring 602, and a partition plate 107 is provided in the center of the barrel body 101. The partition plate 107 divides the internal cavity of the barrel body 101 into compartments of equal volume, and liquid is provided in the compartments and the cavity portion 605. A third connecting port 102 and a first connecting port 103 are respectively provided in each compartment, and there are two bottom connecting tubes 3, and one end of each bottom connecting tube 3 is connected to each connecting air port 604, and the other end of each bottom connecting tube 3 is respectively connected to the third connecting port 102 and the first connecting port 103.

[0043] The balance air port 603 is connected to the external atmosphere to maintain air pressure balance.

[0044] Initially, the liquid levels in the left half ring 601 and the right half ring 602 are adjusted to the same height. When a height difference occurs during the jacking, the liquid levels in the two compartments in the barrel body 101 are simultaneously lowered or raised. When the tube body 5 rotates around the axis during the jacking process, a difference occurs between the liquid levels in the left half ring 601 and the right half ring 602, and a difference also occurs between the liquid levels in the two compartments in the barrel body 101. Based on the difference, the rotation deviation angle of the tube body 5 can be calculated to make corresponding jacking adjustments.

[0045] The cross-sectional area of ​​the cavity portion 605 is larger than the cross-sectional area of ​​the compartment of the barrel body 101 , and the change of the liquid level in the barrel body 101 is more obvious, which is convenient for intuitively judging the height and spin posture changes of the tube body 5 .

[0046] In the preferred embodiment, an annular guide portion 7 is provided on the outer wall of the front end of the tube body 5, a dorsal space 701 is provided on the rear side of the annular guide portion 7, a C-shaped ring 6 is arranged in the dorsal space 701, and a stop ring 8 is sleeved on the outer wall of the tube body 5, the stop ring 8 abuts against the rear end of the C-shaped ring 6 and blocks the dorsal space 701.

[0047] The stop ring 8 is provided with a plurality of mounting ears 801 along the circumferential direction and is fixed to the outer wall surface of the tube body 5 by bolts.

[0048] The end surface of the stop ring 8 presses the C-shaped ring 6 tightly to prevent the C-shaped ring 6 from rotating and slipping.

[0049] The stop ring 8 closes the back space 701 to prevent soil or moisture from entering during the jacking process.

[0050] In the preferred embodiment, a plurality of protective tube structures 503 are provided on the outer wall of the tube body 5 along the circumferential direction, and a dividing rib 504 is provided in the center of the protective tube structure 503 to divide the interior of the protective tube structure 503 into two independent channels. The two bottom connecting tubes 3 respectively pass through the independent channels of the protective tube structure 503 at the lower end of the tube body 5 to communicate with the third connecting port 102 and the first connecting port 103 respectively. Two top ventilation tubes 301 are also provided, and one end of each top ventilation tube 301 is connected with the balance air port 603, and the other end passes through the independent channels of the protective tube structure 503 to communicate with the outside. The stop ring 8 is provided with a plurality of avoidance notches 803 along the circumferential direction, and an arc-shaped protective plate 802 is provided on one side of each avoidance notch 803, and the arc-shaped protective plate 802 covers the protective tube structure 503 near the annular guide portion 7.

[0051] During jacking construction in dense soil layers, since it is difficult for the soil layer to connect with the outside atmosphere to balance the air pressure, it is necessary to introduce air from the outside at the rear end to balance the air pressure.

[0052] The left half ring 601 and the right half ring 602 are provided with quick-insert connectors at both ends for quick installation of pipelines. The quick-insert connector at the lower end is perpendicular to the end face of the C-shaped ring 6 and is located in the arc-shaped protective sheet 802 at the lower end. In order to facilitate the installation of pipelines at the upper end of the C-shaped ring 6, since there is no arc-shaped protective sheet 802 at the joint, the quick-insert connector needs to be embedded in the back space 701 and bend at the uppermost avoidance notch 803. In order to facilitate the installation of the air pipe, the protective pipe structure 503 cannot be too close to the annular guide part 7. Therefore, it is necessary to additionally weld the arc-shaped protective sheet 802 on the stop ring 8 to cover the position between the protective pipe structure 503 and the annular guide part 7 to prevent dirt and moisture from entering.

[0053] In the preferred embodiment, each compartment of the barrel body 101 has a through threaded hole at the lower end, a plugging screw 108 is threadedly connected to the through threaded hole, an L-shaped leakage hole 109 is provided in the plugging screw 108, one end of the leakage hole 109 is provided on the outer wall of the plugging screw 108, and the other end is connected to the outside.

[0054] Rotate the plug screw 108 to connect the side wall port of the drain hole 109 to the interior of the compartment, so that the liquid inside can be discharged from the lower end to adjust the liquid level.

[0055] The preferred solution includes a method of use: lifting the jacking structure to a jacking height and adjusting the level of the pipe body 5; The height measuring piece 1 and the C-ring 6 are installed respectively; The stop ring 8 is sleeved on the tube body 5 so that each arc-shaped guard sheet 802 is close to each guard tube structure 503; Pass the bottom connecting pipe 3 and the top ventilation pipe 301 through the protective pipe structure 503, and connect the height measuring piece 1 and the C-shaped ring 6 at both ends of the bottom connecting pipe 3 and the top ventilation pipe 301 respectively; Sleeve the C-shaped ring 6 onto the rear end of the tube body 5, and fill the left half ring 601 and the right half ring 602 with liquid until the liquid level is at the middle position; The height of the height measuring member 1 is fixed, and the initial liquid level height of the compartment in the barrel body 101 is adjusted to be equal and at zero scale; Slide the C-shaped ring 6 horizontally into the back space 701, observe the liquid level in the barrel 101, and verify the horizontal state of the tube 5. The C-shaped ring 6 can be made of transparent plastic, which has a certain elasticity and can slide on the tube 5 with the protective tube structure 503. If the tube 5 is horizontal, the liquid level in the C-shaped ring 6 does not change during the sliding process, which is reflected in the liquid level in the adjustment barrel 101. Slide the stop ring 8 horizontally until the end face is pressed against the C-shaped ring 6, and fix the stop ring 8 on the tube body 5; Perform jacking construction and monitor the liquid level changes in the two compartments of the barrel body 101 in real time; After the measurement is completed, remove the measuring device.

[0056] Embodiment 2: like Figure 1-9 In the invention, a height difference measuring device for a horizontal jacking structure includes a height measuring piece 1 and a follower 2 installed on a pipe body 5, wherein the height measuring piece 1 includes a barrel body 101, and the follower 2 includes a barrel body 201. The barrel body 101 and the barrel body 201 are cylindrical structures with a cavity inside, and the barrel body 201 is perpendicular to the axial direction of the pipe body 5. A first connecting hole 103 is provided at the lower end of the barrel body 101, and a second connecting hole 202 is provided at the lower end of the follower 2. A flexible bottom connecting pipe 3 is connected between the first connecting hole 103 and the second connecting hole 202. The upper ends of the barrel body 101 and the barrel body 201 are connected to the outside, and liquid is provided in the barrel body 101 and the barrel body 201.

[0057] The barrel 101 is provided with vertical scale lines, the height measuring piece 1 is fixed on the ground or the wall, and the follower 2 follows the pipe 5 to push horizontally. Initially, the liquid in the follower 2 is adjusted to the middle height. At this time, the height of the height measuring piece 1 is adjusted so that the water surface is at zero position. When the pipe 5 pushes forward, the height of the liquid level in the barrel 101 is monitored. The follower 2 is installed at the front end of the pipe 5. According to the principle of communicating vessels, when the liquid level in the barrel 101 increases, it means that the pipe 5 is moving upward, and when the liquid level in the barrel 101 decreases, it means that the pipe 5 is moving downward. According to the height difference direction, the pushing direction of the pipe 5 is adjusted immediately, so that the pipe 5 is always pushed horizontally.

[0058] The pipe body 5 can be a top pipe or a pipe curtain. When it is a pipe curtain, the outer wall of the pipe body 5 is further provided with a hooking structure 501.

[0059] In the preferred embodiment, the height measuring piece 1 also includes a height measuring piece adjusting device 4, which is provided with a base 404, on which are provided two parallel and oppositely arranged brackets 402, on which are provided strip grooves 405, and a ring frame 401, on which are provided an insertion rod portion 407, which is rotatably connected to the outer wall of the upper end of the barrel body 101, and on which are provided two screw rod portions 406, each screw rod portion 406 is provided with a threaded locking knob 403, which is inserted in the strip groove 405, and the insertion rod portion 407 is arranged vertically to the screw rod portion 406.

[0060] When the locking knob 403 is loosened, the ring frame 401 can move up and down with the barrel body 101, the base 404 can be parallel to the length direction of the barrel body 101, the base 404 can stand on the ground, the base 404 can be perpendicular to the length direction of the barrel body 101, and the bottom end of the base 404 is installed on the wall. Both methods adjust the barrel body 101 to be vertical. At this time, the locking knob 403 is locked to clamp the bracket 402, and the height of the ring frame 401 is fixed.

[0061] In the preferred embodiment, the upper ends of the barrel body 101 and the barrel body 201 are open and provided with a protective cover 104 with a threaded connection. The inner wall of the protective cover 104 is provided with a plurality of air-guiding notches 105 along the circumferential direction. The inner top wall of the protective cover 104 is provided with a plurality of air-guiding grooves 106. One end of the air-guiding groove 106 is connected to the air-guiding notches 105, and the interior of the barrel body 101 and the barrel body 201 is connected to the air-guiding groove 106.

[0062] The protective covers 104 of the height measuring member 1 and the follower 2 have the same structure. The protective covers 104 are ventilated through fine grooves to prevent the upper end from being directly connected to the outside, thereby achieving a dust-proof effect. For the follower 2, it can also prevent soil from entering the follower 2 during jacking.

[0063] In a preferred embodiment, a filter element 203 with multiple pores is provided at the upper end of the barrel body 201 .

[0064] The filter element 203 can further prevent soil particles from entering the interior of the follower 2.

[0065] In the preferred solution, the side wall of the tube body 5 is provided with an oblique stopper 502 , the follower 2 is fixed to the rear end of the oblique stopper 502 , and a protective tube structure 503 is also provided at the rear end of the oblique stopper 502 on the side wall of the tube body 5 , and the bottom connecting tube 3 passes through the protective tube structure 503 .

[0066] The oblique block 502 can protect the follower 2 and reduce the jacking resistance. The protective tube structure 503 is a thin-walled steel structure, extending from the front end of the tube body 5 to the rear end. A cavity is provided inside to protect the bottom connecting tube 3, which is thereby led from the jacking area at the front end of the tube body 5 to the outside world at the rear end.

[0067] In the preferred embodiment, two protective tube structures 503 are provided on the side wall of the tube body 5 along the height direction, and a top ventilation pipe 301 is also provided on the upper end of the follower 2. The top ventilation pipe 301 passes through the upper protective tube structure 503, and the bottom connecting pipe 3 passes through the lower protective tube structure 503.

[0068] During jacking construction in dense soil layers, since it is difficult for the soil layer to connect with the outside atmosphere to balance the air pressure, it is necessary to introduce air from the outside at the rear end to balance the air pressure.

[0069] Embodiment 3: A height difference measuring device for a horizontal jacking structure, wherein liquid is poured into a height measuring piece 1 and a follower 2, and the height measuring piece 1 and the follower 2 are connected by a bottom connecting pipe 3 to form a communicating vessel; The height measuring piece 1 is vertically placed behind the horizontal jacking structure, and the bottom opening is connected to the bottom connecting pipe 3; The follower 2 is vertical and fixed to the front section of the horizontal jacking structure, and the bottom opening is connected to the bottom connecting pipe 3; The height measuring member adjusting device 4 is placed on the ground and fixedly connected to the height measuring member 1 ring frame; The horizontal jacking structure can be a pipe curtain or a jacking pipe segment.

[0070] In the preferred solution, the height measuring member 1 is a barrel-shaped structure, fixed in the horizontal jacking structure to be measured, the barrel body 101 is provided with a scale, a drain valve 102 and a connecting hole 103 are provided at the bottom, and a protective cover 104 is provided at the top; The scale at the middle position of the barrel 101 is set to zero scale; The drain valve 102 can be opened or closed independently to adjust the amount of liquid in the container; The communication hole 103 is connected to the bottom communication pipe 3; The protective cover 104 is a structure with a sealed top and an open bottom. The opening is slightly larger than the diameter of the barrel of the height measuring piece 1 and is placed on the top of the barrel of the height measuring piece 1. It is not airtightly connected. The liquid in the height measuring piece 1 is in contact with the air, and the surface pressure of the liquid is the same as the atmospheric pressure, which can ensure that the internal liquid does not overflow under the influence of construction vibration, and that external rainwater, dust, etc. do not penetrate into the interior of the height measuring piece 1.

[0071] In the preferred solution, the follower 2 is a barrel-shaped structure, including a barrel body 201, a connecting hole 202, a filter element 203, and a protective cover 104; The communication hole 202 is located at the bottom of the barrel body 201 and is connected to the bottom communication pipe 3; The filter element 203 is an inverted "Ω"-shaped structure, the top ring plate is connected to the barrel body 201 to form a whole, the lower protrusion is a barrel-shaped structure, and the annular opening allows the liquid in the follower 2 to communicate with the atmosphere; The protective cover 104 of the follower 2 is a structure with a sealed top and an open bottom. The opening is slightly larger than the diameter of the barrel of the follower 2 and is placed on the top of the barrel of the follower 2.

[0072] In the preferred solution, the bottom connecting tube 3 is a tubular structure with a certain flexibility and can be rolled up for storage. The inner core uses a steel wire core tube with a certain pressure resistance. When bent, the internal liquid can still keep flowing, ensuring the effectiveness of the connecting vessel.

[0073] In the preferred solution, the height measuring member adjustment device 4 comprises a ring frame 401, a bracket 402, a locking knob 403, and a base 404; The ring frame 401 is a ring-shaped structure connected by ring frames, the inner side of which is connected to the top of the height measuring member 1, and the outer side is connected to the bracket 402, so that the height measuring member 1 can be kept vertical under the action of gravity.

[0074] The bottom of the bracket 402 is fixed on the base 404, and a notch is arranged at the top. After the locking knob 403 is loosened, the ring frame 401 can drive the height measuring member 1 to move up and down.

[0075] The locking knob 403 connects the ring frame 401 and the bracket 402. The locking knob 403 is hinged to the ring frame 401. When the locking knob 403 is loosened, the ring frame 401 can move up and down. When the locking knob 403 is tightened, the ring frame 401 can only rotate along the bracket.

[0076] In a preferred solution, the liquid poured into the communicating vessel structure is generally water, and when the environmental vibration is large, it is replaced with a liquid with a higher viscosity.

[0077] In a preferred solution, the communicating vessel is calibrated before use, and the liquid level at the initial moment is kept at the 0 scale by adjusting the height measuring piece 1. When the height adjustment fails to keep the liquid level at the 0 scale, water is added to the height measuring piece or the drain valve 102 is opened to drain the water.

[0078] In the preferred scheme, the diameter of the follower 2 is larger than that of the height measuring piece 1. The follower 2 is fixed in the horizontal jacking structure to be measured. When the jacking structure deviates up and down, the follower 2 changes accordingly. Due to the water balance and the communication of the liquid levels, the liquid level in the height measuring piece 1 also changes accordingly. The diameter of the height measuring piece 1 is r1, and the diameter of the follower 2 is r2. When the jacking structure undergoes a vertical displacement x, the value in the height measuring piece changes to, since r1>r2 is large, the displacement of the jacking structure is amplified, and the measurement accuracy is higher.

[0079] In a preferred solution, when the jacking structure is a pipe curtain, the follower 2 is installed in the grouting pipe, and when the jacking structure is a jacking pipe, the follower 2 is fixed inside the jacking pipe.

[0080] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A device for measuring the height difference of a horizontal jacking structure, characterized by: The invention comprises a height measuring member (1) and a follower member (2) mounted on a tube body (5). The height measuring member (1) comprises a barrel body (101). The barrel body (101) is a cylindrical structure with a cavity inside. The barrel body (201) is perpendicular to the axial direction of the tube body (5). A first communication port (103) is provided at the lower end of the barrel body (101). A flexible bottom communication pipe (3) is connected between the first communication port (103) and the follower member (2). The upper ends of the barrel body (101) and the follower member (2) are connected to the outside. Liquid is provided in the barrel body (101) and the follower member (2).

2. The device for measuring the height difference of a horizontal jacking structure according to claim 1 is characterized in that: The height measuring member (1) further comprises a height measuring member adjusting device (4), wherein the height measuring member adjusting device (4) is provided with a base (404), wherein the base (404) is provided with two brackets (402) arranged in parallel and opposite to each other, wherein the brackets (402) are provided with strip grooves (405), and further provided with a ring frame (401), wherein an insertion rod portion (407) is provided on the inner side of the ring frame (401), wherein the insertion rod portion (407) is rotatably plugged into the outer wall of the upper end of the barrel body (101), and wherein two screw rod portions (406) are provided on the outer side of the ring frame (401), wherein each screw rod portion (406) is sleeved with a locking knob (403) which is threadedly connected, wherein the locking knob (403) is plugged into the strip groove (405), and wherein the insertion rod portion (407) and the screw rod portion (406) are arranged vertically.

3. The device for measuring the height difference of a horizontal jacking structure according to claim 2 is characterized in that: The upper end of the barrel body (101) is open and provided with a threaded protective cover (104); the inner wall of the protective cover (104) is provided with a plurality of air guide notches (105) along the circumferential direction; the inner top wall of the protective cover (104) is provided with a plurality of air guide grooves (106); one end of the air guide grooves (106) is in communication with the air guide notches (105); and the inside of the barrel body (101) and the barrel body (201) are in communication with the air guide grooves (106).

4. The device for measuring the height difference of a horizontal jacking structure according to claim 1 is characterized in that: The follower (2) is a C-shaped ring (6), and liquid is arranged in the C-shaped ring (6).

5. The device for measuring the height difference of a horizontal jacking structure according to claim 4 is characterized in that: The C-shaped ring (6) comprises a symmetrically arranged left half ring (601) and a right half ring (602), the upper ends of the left half ring (601) and the right half ring (602) are respectively provided with a balancing gas port (603), the lower ends of the left half ring (601) and the right half ring (602) are connected but not connected, the lower ends of the left half ring (601) and the right half ring (602) are respectively provided with a connecting gas port (604), the left half ring (601) and the right half ring (602) are provided with a cavity portion (605), and the barrel body (101) is provided with a central portion thereof. A partition plate (107) is provided, the partition plate (107) divides the internal cavity of the barrel body (101) into compartments of equal volume, liquid is provided in the compartments and the cavity portion (605), each compartment is provided with a third communication port (102) and a first communication port (103), two bottom communication pipes (3) are provided, one end of each bottom communication pipe (3) is connected to each connecting air port (604), and the other end of each bottom communication pipe (3) is connected to the third communication port (102) and the first communication port (103), respectively.

6. The device for measuring the height difference of a horizontal jacking structure according to claim 5 is characterized in that: An annular guide portion (7) is provided on the outer wall of the front end of the tube body (5); a dorsal space (701) is provided on the rear side of the annular guide portion (7); the C-shaped ring (6) is arranged in the dorsal space (701); a stop ring (8) is sleeved on the outer wall of the tube body (5); the stop ring (8) abuts against the rear end of the C-shaped ring (6) and blocks the dorsal space (701).

7. The device for measuring the height difference of a horizontal jacking structure according to claim 6 is characterized in that: A plurality of protective tube structures (503) are provided on the outer wall of the tube body (5) along the circumferential direction. A separation rib (504) is provided in the center of the protective tube structure (503) to divide the interior of the protective tube structure (503) into two independent channels. Two bottom communication tubes (3) respectively pass through the independent channels of the protective tube structure (503) at the bottom of the tube body (5) to communicate with the third communication port (102) and the first communication port (103) respectively. Two top ventilation tubes (301) are also provided. One end of each top ventilation tube (301) is communicated with the balance air port (603), and the other end passes through the independent channels of the protective tube structure (503) to communicate with the outside. A plurality of avoidance notches (803) are provided on the stop ring (8) along the circumferential direction. An arc-shaped protective sheet (802) is provided on one side of each avoidance notch (803). The arc-shaped protective sheet (802) covers the protective tube structure (503) near the annular guide portion (7).

8. The device for measuring the height difference of a horizontal jacking structure according to claim 5 is characterized in that: A through threaded hole is provided at the lower end of each compartment of the barrel body (101), a plug screw (108) is connected to the inner thread of the through threaded hole, an L-shaped leakage hole (109) is provided in the plug screw (108), one end of the leakage hole (109) is provided on the outer wall of the plug screw (108), and the other end is connected to the outside.

9. The device for measuring the height difference of a horizontal jacking structure according to claim 1 is characterized in that: The follower (2) is a barrel body (201) with a cavity inside. The lower end of the barrel body (201) is provided with a second communication port (202). The upper end of the barrel body (201) is connected to the outside. Liquid is provided inside the barrel body (201).

10. The method for using the device for measuring the height difference of a horizontal jacking structure according to claim 5 is characterized by: Lifting the jacking structure to the jacking height and adjusting the level of the pipe body (5); The height measuring piece (1) and the C-shaped ring (6) are installed separately; The stop ring (8) is sleeved onto the tube body (5) so that each arc-shaped protective sheet (802) is in contact with each protective tube structure (503); Passing the bottom connecting pipe (3) and the top ventilation pipe (301) through the protective pipe structure (503), and connecting the height measuring piece (1) and the C-shaped ring (6) at both ends of the bottom connecting pipe (3) and the top ventilation pipe (301) respectively; The C-shaped ring (6) is sleeved onto the rear end of the tube body (5), and liquid is poured into the left half ring (601) and the right half ring (602) so that the liquid level is at a middle position; The height of the height measuring member (1) is fixed, and the initial liquid level of the compartment in the barrel body (101) is adjusted to be equal and at zero scale; Slide the C-shaped ring (6) horizontally into the back space (701), observe the liquid level in the barrel (101), and verify the horizontal condition of the tube (5); Slide the stop ring (8) horizontally until the end face abuts against the C-shaped ring (6), and fix the stop ring (8) on the tube body (5); Perform jacking construction and monitor the changes in liquid levels in the two compartments of the barrel (101) in real time; After the measurement is completed, remove the measuring device.

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