Measuring device for controlling axis of jacking pipe

Abstract

The utility model discloses a measuring device for controlling the axis of a jacking pipe. The measuring device comprises a plurality of sliding grooves formed in the inner wall of the jacking pipe and a measuring mechanism installed between the sliding grooves. The measuring mechanism comprises an adjustable support and a measuring device installed in the middle of the adjustable support, the adjustable support comprises a plurality of supporting legs, each supporting leg is connected into one sliding groove, and an installation base is connected between the supporting legs. The mounting base is horizontally arranged at the axis position of the jacking pipe, and the measuring device comprises laser range finders which are respectively arranged above and below the mounting base. According to the utility model, axis measurement can be carried out when each section of jacking pipe is jacked in, deviation of the jacking pipe can be found in time and corrected, and the jacking pipe is ensured to be always at a design position.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a measuring device for controlling the axis of a jacking pipe. Background Art

[0002] Pipe jacking technology is a non-excavation pipeline laying technology used in municipal construction. Its advantages are that it has no impact on the surrounding environment or has a small impact, a small construction site, low noise, and can work deep underground, which are advantages that excavation and buried pipes cannot match.

[0003] The working principle of pipe jacking construction is to push the tool pipe or tunnel boring machine from the working well through the soil layer to the receiving well with the help of the thrust of the main jacking cylinder and the pipeline relay room. At the same time, the pipeline following the tool pipe or tunnel boring machine is buried between the two wells, in order to realize the construction method of trenchless laying of underground pipelines.

[0004] In the prior art, the jacking pipes used in the construction process are mainly prefabricated standard parts, which are divided into multiple sections. During the jacking process, it is necessary to keep the axes of the front and rear jacking pipes on the same horizontal line at all times to avoid problems such as jacking deviation. Once serious jacking deviation occurs, it is easy to cause damage to the jacking pipe, making subsequent remedial operations difficult. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and propose a measuring device for controlling the axis of a jacking pipe, which can measure the axis of each section of the jacking pipe when it is being pushed in, timely detect the deviation of the jacking pipe and correct it, and ensure that it is always in the designed position.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is specifically as follows:

[0007] A measuring device for controlling the axis of a jacking pipe comprises a plurality of slide grooves arranged on the inner wall of the jacking pipe and a measuring mechanism installed between the slide grooves; the measuring mechanism comprises an adjustable bracket and a measuring device installed in the middle of the adjustable bracket, and the adjustable bracket comprises a plurality of legs, and each leg is respectively connected to one of the slide grooves, and a mounting base is connected between the plurality of legs; the mounting base is horizontally arranged at the axis position of the jacking pipe, and the measuring device comprises laser rangefinders respectively arranged above and below the mounting base.

[0008] Furthermore, there are three supporting feet, including two bottom supporting feet and one top guiding foot.

[0009] Furthermore, the supporting legs are telescopic rods, each supporting leg comprises a main rod and a secondary rod, one end of the main rod is connected to the mounting base, and the other end is provided with a connecting internal thread.

[0010] Furthermore, an external thread connector is provided at one end of the auxiliary rod, and the external thread connector is adapted to the connecting internal thread of the main rod.

[0011] Furthermore, the other end of the auxiliary rod is provided with a sliding block which is adapted to the sliding groove on the inner wall of the top pipe.

[0012] Furthermore, a laser signal receiving point is provided in the departure well.

[0013] Compared with the prior art, the advantages of the utility model are: first, the utility model adopts a slide groove set in each section of the jacking pipe, and an adjustable bracket is connected between the slide grooves and a laser rangefinder is installed, and the laser rangefinder is kept at the axial position of the jacking pipe. During the jacking process, the laser rangefinder emits a laser signal to the signal receiving point in the starting well. On the one hand, the jacking distance can be obtained by the laser rangefinder; on the other hand, whether a deviation occurs can be judged by whether the signal receiving point receives the signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the structure of a jacking pipe of a measuring device for jacking pipe axis control provided by the utility model;

[0016] Figure 2 A schematic diagram of the structure of a measuring device for controlling the axis of a pipe jacking provided by the utility model;

[0017] Figure 3 A schematic diagram of the main rod structure of the measuring device for controlling the jacking pipe axis provided by the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the auxiliary rod structure of the measuring device for controlling the jacking pipe axis.

[0019] Figure numerals: 1. top pipe; 2. slide groove; 3. mounting base; 4. main rod; 5. auxiliary rod; 6. slider; 7. laser rangefinder; 8. external thread connector; 9. connecting internal thread. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] In the description of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0023] In addition, the terms “first”, “second”, “third”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0027] like Figure 1-Figure 4As shown, a measuring device for controlling the axis of a jacking pipe comprises a plurality of slide grooves 2 arranged on the inner wall of the jacking pipe 1 and a measuring mechanism installed between the slide grooves 2; the measuring mechanism comprises an adjustable bracket and a measuring device installed in the middle of the adjusting bracket, and the adjustable bracket comprises a plurality of legs, and each leg is respectively connected to one of the slide grooves 2, and a mounting base 3 is connected between the plurality of legs; the mounting base 3 is horizontally arranged at the axis position of the jacking pipe 1, and the measuring device comprises a laser rangefinder 7 respectively arranged above and below the mounting base 3.

[0028] Compared with the prior art, in the prior art, the axis control of the jacking pipe 1 is mainly adopted: one is that the surveyor finds the pipeline axis in advance, and then measures the coordinates and elevation at the axis through the total station to control the pipeline jacking line type. If the jacking pipeline line type deviation exceeds the specification requirements, it is necessary to wait for the on-site operator to adjust the pipeline, and then measure its position again after adjustment until the pipeline deviation meets the specifications and design requirements; the other is that the jacking pipe 1 machine equipment adopts an automatic data receiving and correcting system, and the pipeline is installed with a prism and a data transmission system to cooperate with the robot for automatic measurement. Due to the high cost of the whole set of equipment, it is generally only used in large-scale long-distance jacking pipes 1. In the utility model, the laser rangefinder 7 is mainly installed on the adjustable bracket, and the laser rangefinder 7 transmits the laser signal to the signal receiving position of the departure well. On the one hand, it is simple in structure and low in price. On the other hand, it can be measured by setting a push trolley to push the adjustable bracket to the specified position to measure whether the axis position of each jacking pipe 1 meets the design requirements.

[0029] The supporting legs are specifically three in number, including two bottom supporting legs and one top guiding leg. The adjustable bracket can be effectively fixed between the inner walls of the top pipe 1 by arranging the three supporting legs.

[0030] The legs are telescopic rods, each leg includes a main rod 4 and a secondary rod 5, one end of the main rod 4 is connected to the mounting base 3, and the other end is provided with a connecting internal thread 9. One end of the secondary rod 5 is provided with an external thread connector 8, and the external thread connector 8 is adapted to the connecting internal thread 9 of the main rod 4. The leg length is adjusted by thread engagement, so that it can be applied to more jacking pipes 1 with different diameters.

[0031] The other end of the secondary rod 5 is provided with a slider 6 that matches the slide groove 2 on the inner wall of the top pipe 1. A limit pin can be provided on the slider 6, and limit holes are provided at intervals in the slide groove 2, and the position of the adjustable bracket is locked by the limit pin.

[0032] A laser signal receiving point is set in the starting well. A deviation warning is issued by whether the laser signal receiving point receives the laser signal, and whether the top pipe 1 deviates is predicted in time.

[0033] In actual use, first, when the starting well is excavated, the jacking pipe 1 is prefabricated, the chute 2 is pre-opened in the prefabricated jacking pipe 1 in the factory, and each section of the jacking pipe 1 is numbered and transported to the site for maintenance. Before the jacking pipe 1 operation, the reaction wall is constructed according to the specifications and materials determined by the design, and the reaction force dispersion frame is installed, and the jack is installed on the reaction force dispersion frame, and the laser signal receiving point is installed on the reaction force dispersion frame. The slurry balance tunneling machine is used to drive the jacking pipe 1 to perform the excavation operation in sequence. After the first section of the jacking pipe 1 enters the designated position, the measuring device provided by the utility model can be installed, and each support leg is adjusted to keep the installation base 3 at the horizontal position of the axis of the jacking pipe 1, and the signal sent by the laser rangefinder 7 reaches the laser signal receiving point, and then the remaining jacking pipes 1 in sequence are continuously hoisted and the jacking pipe 1 operation is performed. In this process, the bracket can be locked to keep it in a fixed position, or two thrust trolleys can be installed at the two bottom support legs respectively, and the thrust trolley is used to push the adjustable bracket to move.

[0034] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A measuring device for controlling the axis of a pipe jacking, characterized in that: The invention comprises a plurality of slide grooves (2) arranged on the inner wall of a top pipe (1) and a measuring mechanism installed between the slide grooves (2); the measuring mechanism comprises an adjustable bracket and a measuring device installed in the middle of the adjustable bracket, and the adjustable bracket comprises a plurality of legs, each of which is respectively connected to one of the slide grooves (2), and a mounting base (3) is connected between the plurality of legs; the mounting base (3) is horizontally arranged at the axis position of the top pipe (1), and the measuring device comprises a laser rangefinder (7) respectively arranged above and below the mounting base (3).

2. The measuring device for controlling the axis of a pipe jacking according to claim 1, characterized in that: The supporting feet are specifically three in number, including two bottom supporting feet and one top guiding foot.

3. The measuring device for controlling the axis of a pipe jacking according to claim 2, characterized in that: The supporting legs are telescopic rods, each of which comprises a main rod (4) and a secondary rod (5); one end of the main rod (4) is connected to the mounting base (3), and the other end is provided with a connecting internal thread (9).

4. The measuring device for controlling the axis of a pipe jacking according to claim 3, characterized in that: An external thread connector (8) is provided at one end of the auxiliary rod (5), and the external thread connector (8) is adapted to the connecting internal thread (9) of the main rod (4).

5. The measuring device for controlling the axis of a pipe jacking according to claim 3, characterized in that: The other end of the auxiliary rod (5) is provided with a sliding block (6) which is adapted to the sliding groove (2) on the inner wall of the top pipe (1).

6. The measuring device for controlling the axis of a pipe jacking according to claim 1, characterized in that: A laser signal receiving point is set in the departure well.

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