Height difference measuring device for horizontal jacking structure

Abstract

The utility model provides a height difference measuring device for a horizontal jacking structure, which comprises a height measuring piece and a follower mounted on a pipe body, the height measuring piece comprises a barrel body, the follower comprises a barrel body, the barrel body and the barrel body are of a cylindrical structure with a cavity inside, the barrel body is perpendicular to the axis direction of the pipe body, a first communicating hole is formed in the lower end of the barrel body, and a second communicating hole is formed in the lower end of the barrel body. A first communicating hole is formed in the lower end of the follower, a second communicating hole is formed in the lower end of the follower, a flexible bottom communicating pipe is communicated between the first communicating hole and the second communicating hole, the upper ends of the barrel body and the barrel body are communicated with the outside, liquid is arranged in the barrel body and the barrel body, 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 utility model relates to the field of underground jacking construction, and particularly relates to a height difference measuring device for horizontal jacking structure. BACKGROUND

[0002] With the progress of the times and the development of the society, tunnels and underground projects are paid more and more attention by people and are widely used in many fields such as traffic logistics, municipal facilities, water conservancy and hydropower, resource storage, mineral development, and national defense construction. Fully developing and utilizing underground space is an inevitable trend of the sustainable development of cities. At present, urban underground project construction has entered a new development period. In underground project construction, horizontal jacking structure is widely used, such as pipe curtain and pipe jacking, and the vertical displacement monitoring thereof is the key and difficulty of construction.

[0003] In the traditional way, a reference point is set near the working well or receiving well before pipe jacking or pipe curtain construction, and a high-precision level is usually used to determine the elevation of the reference point. With the advancement of the pipe, workers will regularly use a leveling rod to measure the height difference of the front end of the pipe relative to the reference point, so as to determine the height of the front end of the pipe. Although this method is direct, it is tedious and susceptible to environmental influences.

[0004] Another way is to install an inclination sensor on the pipe or pipe curtain, which can obtain the inclination angle and position information of the front end of the pipe in real time, and the current height of the front end of the pipe can be calculated in combination with the known length and initial height of the pipe. However, the inclination sensor is relatively fragile and is prone to damage, and needs to be continuously powered. INVENTION CONTENTS

[0005] The utility model provides a height difference measuring device for horizontal jacking structure, solves the problem of difficult height deviation measurement when horizontal jacking structure is constructed in underground project.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of a height difference measuring device for horizontal jacking structure, which comprises a height measuring part and a follower installed on a pipe body. The height measuring part comprises a barrel body, and the follower comprises a barrel body. The barrel body and the barrel body are cylindrical structures with cavities inside. The barrel body is perpendicular to the axis direction of the pipe body. The lower end of the barrel body is provided with a first communication hole, and the lower end of the follower is provided with a second communication hole. A flexible bottom communication pipe is communicated between the first communication hole and the second communication hole. The upper ends of the barrel body and the barrel body are communicated with the outside, and the barrel body and the barrel body are provided with liquid inside.

[0007] In the preferred scheme, the height measuring device further comprises a height measuring device adjusting device, the height measuring device adjusting device is provided with a base, the base is provided with two parallel and opposite arranged supports, the supports are provided with a strip-shaped slot, and a ring frame is further provided, the inner side of the ring frame is provided with a plug rod part, the plug rod part is rotationally inserted with the outer wall of the upper end of the barrel body, the outer side of the ring frame is provided with two screw rod parts, each screw rod part is sleeved with a threadedly connected locking knob, the locking knob is inserted in the strip-shaped slot, and the plug rod part and the screw rod part are arranged perpendicularly.

[0008] In the preferred scheme, the barrel body and the barrel upper end are provided with a threaded connection protective cover, the inner wall of the protective cover is circumferentially provided with a plurality of air guide notches, the inner top wall of the protective cover is provided with a plurality of air guide grooves, one end of the air guide grooves is communicated with the air guide notches, and the barrel body and the barrel interior are communicated with the air guide grooves.

[0009] In the preferred scheme, the barrel upper end is provided with a filter core with a plurality of pores.

[0010] In the preferred scheme, the side wall of the pipe body is provided with an inclined stop, the follower is fixed at the rear end of the inclined stop, the rear end of the inclined stop of the side wall of the pipe body is further provided with a pipe protection structure, and the bottom communication pipe passes through the pipe protection structure.

[0011] In the preferred scheme, the pipe protection structure is provided with two along the height direction of the side wall of the pipe body, and the upper end of the follower is further provided with a top air pipe, the top air pipe passes through the upper pipe protection structure, and the bottom communication pipe passes through the lower pipe protection structure.

[0012] In the preferred scheme, the diameter of the barrel body is smaller than the diameter of the barrel.

[0013] The height measuring device has the advantages that: the measurement is stable, the water conservation and the communicating vessel principle are adopted, the vertical displacement in the jacking structure construction process can be measured, and the measurement is not disturbed by the soil in the jacking process; the measurement precision is high, the diameter ratio of the barrel body and the barrel body of the follower can be reduced to increase the sensitivity of the measurement system; the environmental interference is small, the height measuring device and the follower are provided with the leakage-proof cover to prevent the external soil and liquid from entering; the structure is simple, and complex electric control equipment is not needed; the installation is convenient, and the manufacturing cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described in connection with the drawings and examples.

[0015] Figure 1 It is the schematic diagram of height measuring main assembly.

[0016] Figure 2 It is the schematic diagram of height measuring device.

[0017] Figure 3 It is the schematic diagram of follower.

[0018] Figure 4 It is the half sectional view of follower.

[0019] Figure 5 is a schematic diagram of the height measuring device and the bracket.

[0020] Figure 6 is a schematic diagram of the upper part of the bracket.

[0021] Figure 7 is a schematic diagram of the ring stand.

[0022] Figure 8 is a schematic diagram of the follower installed on the pipe curtain.

[0023] Figure 9 is an internal view of the protective cover.

[0024] In the figure: height measuring device 1; barrel body 101; drain valve 102; first communication hole 103; protective cover 104; air guide notch 105; air guide sink 106; follower 2; barrel body 201; second communication hole 202; filter element 203; bottom communication pipe 3; top air pipe 301; height measuring device adjusting device 4; ring stand 401; bracket 402; locking knob 403; base 404; strip groove 405; screw rod part 406; plug rod part 407; pipe body 5; hooking structure 501; inclined stop 502; pipe protection structure 503. DETAILED DESCRIPTION

[0025] Example 1:

[0026] As Figures 1-9 in the specification, a height difference measuring device for horizontally jacking a structure includes a height measuring device 1 and a follower 2 installed on a pipe body 5. The height measuring device 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 cavities inside. The barrel body 201 is perpendicular to the axis direction of the pipe body 5. The lower end of the barrel body 101 is provided with a first communication hole 103, and the lower end of the follower 2 is provided with a second communication hole 202. The first communication hole 103 and the second communication hole 202 are connected by a flexible bottom communication pipe 3. The upper ends of the barrel body 101 and the barrel body 201 are connected to the outside, and the barrel body 101 and the barrel body 201 are provided with liquid inside.

[0027] The barrel body 101 is provided with vertical scale lines. The height measuring device 1 is fixed to the ground or wall surface. The follower 2 follows the horizontal jacking of the pipe body 5. Initially, the liquid in the follower 2 is adjusted to the middle height. At this time, the height of the height measuring device 1 is adjusted so that the water surface is at zero. When the pipe body 5 jacks, the height of the liquid level in the barrel body 101 is monitored. The follower 2 is installed at the front end of the pipe body 5. According to the principle of the communicating vessel, when the liquid level in the barrel body 101 increases, it indicates that the pipe body 5 is moving upwards. When the liquid level in the barrel body 101 decreases, it indicates that the pipe body 5 is moving downwards. According to the direction of the height difference, the jacking direction of the pipe body 5 is adjusted in real time, so that the pipe body 5 always jacks horizontally.

[0028] The pipe body 5 can be a pipe or a pipe cover. When it is a pipe cover, the outer wall of the pipe body 5 is further provided with a hooking structure 501.

[0029] In the preferred embodiment, the height measuring device 1 further comprises a height measuring device adjusting device 4, which is provided with a base 404, two parallel and opposite arranged supports 402 arranged on the base 404, a strip-shaped slot 405 arranged on the support 402, and a ring support 401, the inner side of which is provided with a plug rod part 407, which is rotatably inserted on the outer wall of the upper end of the barrel body 101, and the outer side of the ring support 401 is provided with two screw parts 406, each of which is provided with a threadedly connected locking knob 403, which is inserted in the strip-shaped slot 405, and the plug rod part 407 is arranged perpendicularly to the screw part 406.

[0030] When the locking knob 403 is loosened, the ring support 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 can be installed on the wall surface, and in both ways, the barrel body 101 is adjusted to be vertical. At this time, the locking knob 403 clamps the support 402, and the height of the ring support 401 is fixed.

[0031] In the preferred embodiment, the barrel body 101 and the barrel body 201 are provided with a protective cover 104, which is threadedly connected to the upper end of the barrel body 101 and the barrel body 201, the inner wall of the protective cover 104 is provided with a plurality of air guiding notches 105, 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 communicated with the air guiding notch 105, and the inside of the barrel body 101 and the barrel body 201 is communicated with the air guiding groove 106.

[0032] The protective cover 104 of the height measuring device 1 and the follower 2 has the same structure, the protective cover 104 is ventilated through the fine slot, avoiding direct communication with the outside at the upper end, and achieving the dustproof effect, and for the follower 2, it can also prevent soil from entering the inside of the follower 2 when jacking.

[0033] In the preferred embodiment, the upper end of the barrel body 201 is provided with a filter core 203 with multiple pores.

[0034] The filter core 203 can further prevent soil particles from entering the inside of the follower 2.

[0035] In the preferred embodiment, the side wall of the pipe body 5 is provided with an inclined stop 502, the follower 2 is fixed at the rear end of the inclined stop 502, the rear end of the inclined stop 502 of the side wall of the pipe body 5 is further provided with a pipe protection structure 503, and the bottom communication pipe 3 passes through the pipe protection structure 503.

[0036] The inclined stop 502 can protect the follower 2 and reduce the jacking resistance, the pipe protection structure 503 is a thin-walled steel structure, which extends from the front end to the tail end of the pipe body 5, and has an internal cavity for protecting the bottom communication pipe 3, and the bottom communication pipe 3 is guided from the front end jacking area of the pipe body 5 to the outside at the rear end.

[0037] In the preferred embodiment, the protector structure 503 is provided with two on the side wall of the pipe body 5 along the height direction, and the top air pipe 301 is provided on the upper end of the follower 2, which penetrates the upper protector structure 503, and the bottom communication pipe 3 penetrates the lower protector structure 503.

[0038] For the jacking construction of dense soil layer, it is necessary to balance the air pressure by introducing air from the rear end of the external atmosphere due to the difficulty of the soil layer to communicate with the external atmosphere.

[0039] Embodiment 2:

[0040] A height measuring device for horizontal jacking structure, liquid is filled in the height measuring part 1 and the follower 2, and the bottom communication pipe 3 is used to connect the height measuring part 1 and the follower 2 to form a communicating vessel;

[0041] The height measuring part 1 is vertical and placed behind the horizontal jacking structure, and the bottom opening is connected with the bottom communication pipe 3;

[0042] The follower 2 is vertical and fixed on the front section of the horizontal jacking structure, and the bottom opening is connected with the bottom communication pipe 3;

[0043] The height measuring part adjusting device 4 is placed on the ground and fixed with the ring frame of the height measuring part 1;

[0044] The horizontal jacking structure can be a pipe cover or a pipe piece.

[0045] In the preferred embodiment, the height measuring part 1 is a barrel structure fixed in the horizontal jacking structure to be measured, the barrel body 101 is provided with a scale, the bottom is provided with a drain valve 102 and a communication hole 103, and the top is provided with a protective cover 104;

[0046] The scale at the middle position of the barrel body 101 is set as zero scale;

[0047] The drain valve 102 can be independently opened or closed to adjust the amount of liquid in the container;

[0048] The communication hole 103 is connected with the bottom communication pipe 3;

[0049] The protective cover 104 is a structure with a top sealing bottom opening, the opening is slightly larger than the diameter of the barrel body of the height measuring part 1, and is placed on the top of the barrel body of the height measuring part 1 in a non-closed connection. The liquid in the height measuring part 1 contacts with air, 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 external rainwater, dust and other things do not enter the inside of the height measuring part 1.

[0050] In the preferred embodiment, the follower 2 is a barrel structure, which includes a barrel body 201, a communication hole 202, a filter element 203, and a protective cover 104;

[0051] The communication hole 202 is located at the bottom of the barrel body 201 and is connected with the bottom communication pipe 3;

[0052] The filter core 203 is an inverted "Ω" structure, the top ring plate is connected with the barrel body 201 to form an integral whole, the lower part is a barrel structure, and the ring opening is provided to make the liquid in the follower 2 communicate with the atmosphere;

[0053] 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 body of the follower 2, and is placed on the top of the barrel body of the follower 2.

[0054] In the preferred scheme, the bottom communication pipe 3 is a tubular structure with a certain flexibility, can be rolled for storage, the inner core uses a steel wire core pipe and has a certain pressure resistance, the internal liquid can still keep flowing under the condition of bending, and the communication device is effective.

[0055] In the preferred scheme, the height measuring element adjusting device 4 comprises a ring frame 401, a support 402, a locking knob 403 and a base 404.

[0056] The ring frame 401 is a ring structure, the inner side is connected with the top of the height measuring element 1, and the outer side is connected with the support 402; the height measuring element 1 is kept vertical under the action of gravity.

[0057] The support 402 is fixed at the bottom of the base 404, and the top is provided with a notch, the ring frame 401 can drive the height measuring element 1 to move up and down after the locking knob 403 is loosened.

[0058] The locking knob 403 connects the ring frame 401 and the support 402, the locking knob 403 is hinged with the ring frame 401, the ring frame 401 can move up and down when loosened, and the ring frame 401 can only rotate along the support when fastened.

[0059] In the preferred scheme, the liquid filled in the communication device is generally water, and when the environment vibration is large, the liquid with a larger viscosity is replaced.

[0060] In the preferred scheme, the communication device is calibrated before use, the liquid surface at the initial moment is kept at the 0 scale by adjusting the height measuring element 1, and when the adjustment height cannot make the liquid surface keep at the 0 scale, water is added in the height measuring element or the water valve 102 is opened to drain water.

[0061] In the preferred scheme, the diameter of the follower 2 is greater than the diameter of the height measuring element 1, the follower 2 is fixed in the horizontal jacking structure to be measured, the follower 2 changes with the jacking structure when the jacking structure moves up and down, the liquid surface in the height measuring element 1 also changes due to the water balance and the liquid surface communication; the diameter of the height measuring element 1 is r1, the diameter of the follower 2 is r2, and when the jacking structure has a vertical displacement x, the value change in the height measuring element is Since r1>r2 is large, the displacement of the jacking structure is amplified, and the measurement accuracy is higher.

[0062] In a preferred solution, when the jacking structure is a pipe curtain, the follower 2 is mounted inside the grouting pipe, and when the jacking structure is a pipe jacking, the follower 2 is fixed inside the pipe jacking.

[0063] The method comprises the following steps:

[0064] S1, fixing the follower in the jacking structure to be measured;

[0065] S2, assembling the structure, placing the height measuring member at a proper height, and filling the liquid in the communicating vessel structure;

[0066] S2, calibrating the structure, reaching the initial liquid level to the 0 scale by adjusting the height of the height measuring member or adding or subtracting the amount of liquid;

[0067] S3, jacking construction of the structure;

[0068] S4, removing the measuring system after the measurement is completed.

[0069] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as a limitation of the present application. The protection scope of the present application should be the technical solutions recited in the claims, including the equivalent replacement solutions of the technical features recited in the claims. That is, the equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A device for measuring the height difference of a structure jacked horizontally, characterized in that: The utility model provides a height measuring device, which comprises a height measuring part (1) and a follower (2) mounted on a pipe body (5), the height measuring part (1) comprises a barrel body (101), the follower (2) comprises a barrel body (201), the barrel body (101) and the barrel body (201) are cylindrical structures with cavities inside, the barrel body (201) is perpendicular to the axial direction of the pipe body (5), the barrel body (101) is provided with a first communication hole (103) at the lower end, the follower (2) is provided with a second communication hole (202) at the lower end, the first communication hole (103) and the second communication hole (202) are communicated with a flexible bottom communication pipe (3), the barrel body (101) and the barrel body (201) are communicated with the outside at the upper end, and the barrel body (101) and the barrel body (201) are provided with liquid inside.

2. The device for measuring height difference of horizontal jacking structure according to claim 1, characterized in that: The height measuring part (1) further comprises a height measuring part adjusting device (4), the height measuring part adjusting device (4) is provided with a base (404), the base (404) is provided with two supports (402) arranged in parallel, the support (402) is provided with a strip-shaped groove (405), and the support (402) is further provided with a ring support (401), the ring support (401) is provided with an insertion rod part (407) on the inner side, the insertion rod part (407) is rotatably inserted into the outer wall of the upper end of the barrel body (101), the ring support (401) is provided with two screw rod parts (406) on the outer side, each screw rod part (406) is provided with a threaded locking knob (403), the threaded locking knob (403) is inserted into the strip-shaped groove (405), and the insertion rod part (407) is arranged perpendicularly to the screw rod part (406).

3. The device for measuring height difference of horizontal jacking structure according to claim 1, characterized in that: The barrel body (101) and the barrel body (201) are provided with a protective cover (104) at the upper end, the protective cover (104) is provided with a plurality of gas guide notches (105) on the inner wall in the circumferential direction, the inner top wall of the protective cover (104) is provided with a plurality of gas guide grooves (106), one end of the gas guide groove (106) is communicated with the gas guide notch (105), and the inside of the barrel body (101) and the barrel body (201) is communicated with the gas guide groove (106).

4. The device for measuring height difference of horizontal jacking structure according to claim 3, characterized in that: The barrel body (201) is provided with a filter core (203) with multiple pores at the upper end.

5. The device for measuring height difference of horizontal jacking structure according to claim 1, characterized in that: The side wall of the pipe body (5) is provided with an inclined stop (502), the follower (2) is fixed at the rear end of the inclined stop (502), the side wall of the pipe body (5) is further provided with a pipe protection structure (503) at the rear end of the inclined stop (502), and the bottom communication pipe (3) passes through the pipe protection structure (503).

6. The device for measuring height difference of horizontal jacking structure according to claim 5, characterized in that: The pipe protection structure (503) is provided with two on the side wall of the pipe body (5) in the height direction, the follower (2) is further provided with a top air pipe (301) at the upper end, the top air pipe (301) passes through the upper pipe protection structure (503), and the bottom communication pipe (3) passes through the lower pipe protection structure (503).

7. The device for measuring height difference of horizontal jacking structure according to claim 5, characterized in that: The diameter of the barrel body (101) is smaller than the diameter of the barrel body (201).

Images