Shield tunnel segment staggered joint assembly staggered platform measuring device
By designing a pipe sheet misaligned joint assembly misaligned table measurement device for shield tunnel construction, the problems of high manual consumption, low measurement efficiency and untimely data collection in the prior art are solved, and fast and accurate pipe sheet misaligned table measurement is achieved, which reduces safety risks, and supports construction design to improve the quality of tunnel forming.
Patent Information
- Application Number
- CN202421803328.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the construction of existing shield tunnels, the measurement method of pipe sheet misaligned tables has problems such as high manual consumption, low measurement efficiency, and untimely data collection, and high safety risks for measurement.
A shield tunnel pipe sheet misaligned joint assembly misaligned table measuring device is designed, including a first measuring member, a second measuring member and a third measuring member, equipped with a first measuring table support, a second measuring table support, a first thousand mark and a second thousand mark. Through the combination of these components and the table support, efficient and accurate measurement of the pipe sheet misaligned table is achieved.
The device can quickly and accurately measure the misalignment of the shield tunnel pipe sheet, reduce manual consumption, improve measurement efficiency, reduce safety risks, and monitor the timely change curve of the misalignment of the pipe sheet, support construction design, and improve tunnel forming quality.
Smart Images
Figure CN222812298U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measuring equipment, in particular to a shield tunnel segment staggered assembly and staggered platform measuring device. Background Art
[0002] The shield method is a method of tunnel excavation under the protection of a steel movable protective device. At the same time, prefabricated segments, blocks or cast-in-place concrete are assembled at the tail of the shield to form the lining structure of the shield tunnel. The shield machine uses the top force of the shield tail jack to achieve excavation. At the same time, slurry is injected between the lining structure and the soil to prevent excessive deformation of the stratum, and the environment around the line is ensured while the tunnel is excavated.
[0003] During the shield construction process, there will be different degrees of segment damage and misalignment. Severe damage and large misalignment often occur at the same time. Segment misalignment refers to the size deviation between adjacent segments in the same ring or segments in different rings after the segments are assembled. The former is called longitudinal misalignment and the latter is called circumferential misalignment. The main reasons for segment misalignment are: improper jacking force when assembling segments, uneven grouting, a certain gap between bolts and bolt holes, and improper control of the shield machine's propulsion posture. Segment misalignment generally causes tunnel leakage, grouting during grouting, local stress concentration between adjacent segments and segment rupture, and even further increase in the amount of misalignment during subsequent construction or use, causing greater harm. By monitoring the size of lining segment misalignment through on-site measurement of the tunnel, a judgment closer to reality can be made, the causes of segment misalignment can be analyzed, and the segments can be prevented from being damaged in this way, which has a positive effect on extending the service life of the permanent structure of the tunnel;
[0004] However, in current construction operations, the main method for measuring segment misalignment is still simple and inefficient measurement. This method has the problems of high labor consumption, low measurement efficiency, untimely data collection, and high measurement safety risks.
[0005] In view of the above-mentioned defects, the inventors of the present invention obtained the present invention after a long period of research and practice. Utility Model Content
[0006] The utility model aims to provide a shield tunnel segment misalignment measurement device to solve the problems of high labor consumption, low measurement efficiency, untimely data collection and high measurement safety risk in the method of measuring misalignment with a ruler.
[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a shield tunnel segment staggered assembly and staggered platform measuring device, comprising a first measuring member, a second measuring member and a third measuring member which are separately arranged, the tops of the first measuring member and the second measuring member are both provided with holes for connection, the holes of the first measuring member and the second measuring member are respectively provided with a first measuring gauge bracket and a second measuring gauge bracket, and the ends of the first measuring gauge bracket and the second measuring gauge bracket are respectively connected with a first micrometer and a second micrometer;
[0008] The measuring contacts of the first micrometer and the second micrometer respectively abut against the top end of the third measuring member, and the first micrometer and the second micrometer respectively perform numerical measurement on the third measuring member through the abutment.
[0009] Preferably, the first measuring member is arranged on one side of the initial segment annular joint formed by the staggered assembly of adjacent shield tunnel segments, the first measuring member and the second measuring member have the same structure, both of them are U-shaped structures, and the first measuring member and the second measuring member are arranged perpendicular to each other.
[0010] Preferably, the second measuring member and the third measuring member are respectively arranged on both sides of the longitudinal seam of the segments formed by staggered assembly of adjacent shield tunnel segments.
[0011] Preferably, the third measuring member is a U-shaped structure, the height of the third measuring member is higher than the heights of the first measuring member and the second measuring member, and the third measuring member and the second measuring member are arranged parallel to each other.
[0012] Preferably, the second measuring member and the third measuring member are arranged parallel to the longitudinal seam of the pipe segment, and the third measuring member is arranged perpendicular to the first measuring member.
[0013] Preferably, the ends of the first measuring meter bracket and the second measuring meter bracket respectively match the inner wall surfaces of the holes at the tops of the first measuring member and the second measuring member, and the first measuring meter bracket and the second measuring meter bracket are supported by the holes and are perpendicular to the top surfaces of the first measuring member and the second measuring meter bracket respectively.
[0014] Preferably, the holes opened on the tops of the first measuring member and the second measuring member extend transversely to form screw holes, and the screw holes are respectively connected with fixing pins for locking the first measuring meter bracket and the second measuring meter bracket through internal threads.
[0015] Preferably, the measuring ends of the first micrometer and the second micrometer are arranged on the same axis, the axis is parallel to the first measuring member, and a gap is arranged between the measuring ends of the first micrometer and the second micrometer.
[0016] Compared with the prior art, the beneficial effects of the present invention are:
[0017] 1. The utility model is provided with a first measuring member, a second measuring member, a third measuring member, a first measuring meter bracket, a second measuring meter bracket, a first micrometer and a second micrometer, which has a simple structure, a reasonable design, is easy to implement and has a low cost.
[0018] 2. The utility model has a small installation workload and is quick to install, thus saving manpower and shortening measurement time.
[0019] 3. The utility model can accurately obtain the time-varying curve of the misalignment of the single-ring lining segments, provide data support for accurate shield tunnel construction design, and improve the quality of the formed tunnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the shield tunnel segment staggered assembly and staggered platform measuring device in the utility model;
[0021] Figure 2 It is a schematic diagram of the installation method of the shield tunnel segment staggered assembly and staggered platform measuring device in the utility model;
[0022] The numbers in the figure represent:
[0023] 1. First measuring member; 2. Second measuring member; 3. Third measuring member; 4. First measuring meter bracket; 5. Second measuring meter bracket; 6. First micrometer; 7. Second micrometer; 8. Fixing pin. DETAILED DESCRIPTION
[0024] The above and other technical features and advantages of the utility model are further described below in conjunction with the accompanying drawings and embodiments. However, the following embodiments are only preferred embodiments of the utility model, not all of them.
[0025] Example:
[0026] like Figure 1-2 As shown, the utility model provides a shield tunnel segment staggered assembly and staggered platform measuring device, comprising a first measuring member 1, a second measuring member 2 and a third measuring member 3, the tops of the first measuring member 1 and the second measuring member 2 are both provided with holes for connection, the holes of the first measuring member 1 and the second measuring member 2 are respectively provided with a first measuring gauge bracket 4 and a second measuring gauge bracket 5, and the ends of the first measuring gauge bracket 4 and the second measuring gauge bracket 5 are respectively connected with a first micrometer 6 and a second micrometer 7;
[0027] The first micrometer 6 and the second micrometer 7 on the first measuring gauge bracket 4 and the second measuring gauge bracket 5 abut against the top end of the third measuring member 3, and the first micrometer 6 and the second micrometer 7 respectively measure the third measuring member 3 through the abutment, and the user reads the measurement values of the first micrometer 6 and the second micrometer 7.
[0028] The first measuring member 1 is arranged on one side of the initial segment annular joint formed by the staggered assembly of shield tunnel segments, the second measuring member 2 and the third measuring member 3 are respectively arranged on both sides of the segment longitudinal joint formed by the staggered assembly of shield tunnel segments, the initial segment annular joint is perpendicular to the segment longitudinal joint, the first measuring member 1 and the second measuring member 2 have the same structure, the first measuring member 1 and the second measuring member 2 are both U-shaped structures, the third measuring member 3 is a U-shaped structure matched with the first measuring member 1 and the second measuring member 2, the height of the third measuring member 3 is higher than the height of the first measuring member 1 and the second measuring member 2, the first measuring member 1 and the second measuring member 2 and the third measuring member 3 are arranged perpendicular to each other, the third measuring member 3 and the second measuring member 2 are arranged parallel to each other, the setting positions of the first measuring member 1, the second measuring member 2 and the third measuring member 3 are fixed to form a stable initial setting state.
[0029] The ends of the first measuring gauge bracket 4 and the second measuring gauge bracket 5 match with the inner wall of the hole for connection opened at the top of the first measuring member 1 and the second measuring member 2. The first measuring gauge bracket 4 and the second measuring gauge bracket 5 are supported by the hole and are perpendicular to the top surfaces of the first measuring member 1 and the second measuring gauge bracket 5 respectively. Under the restriction of the hole, the first measuring gauge bracket 4 and the second measuring gauge bracket 5 in the hole will not tilt laterally to avoid the problem of reading changes of the first micrometer 6 and the second micrometer 7 due to tilting, so as to ensure the accuracy of the readings. The holes opened at the top of the first measuring member 1 and the second measuring member 2 extend laterally to form screw holes, and the screw holes are inserted into the holes. The threads are respectively connected with fixing pins 8 for locking the first measuring meter bracket 4 and the second measuring meter bracket 5. After the first measuring meter bracket 4 and the second measuring meter bracket 5 are respectively inserted into the holes opened at the top of the first measuring member 1 and the second measuring member 2, the first measuring meter bracket 4 and the second measuring meter bracket 5 are further locked by rotating the fixing pin 8 to ensure the setting stability of the first measuring meter bracket 4 and the second measuring meter bracket 5, and avoid longitudinal displacement of the first measuring meter bracket 4 and the second measuring meter bracket 5, so as to further avoid the problem of the first micrometer 6 and the second micrometer 7 not being in contact with the third measuring member 3 during measurement and losing the reading.
[0030] The measuring ends of the first micrometer 6 and the second micrometer 7 are arranged on the same axis, and the axis is parallel to the first measuring member 1. The third measuring member 3 serves as a reference platform for measurement. When the third measuring member 3 moves to any extent in three dimensions, the data measured and displayed by the first micrometer 6 and the second micrometer 7 may change intuitively, which is convenient for reading and recording data. A gap is arranged between the measuring ends of the first micrometer 6 and the second micrometer 7. The gap makes the measuring ends of the first micrometer 6 and the second micrometer 7 more pushed by the change amplitude of the third measuring member 3 when the position of the third measuring member 3 changes, and the difference in the measured data is more obvious, which is convenient for reading and recording data between the first micrometer 6 and the second micrometer 7.
[0031] During measurement, the first measuring member 1 is pasted on one side of the annular seam of the lining segment, and the first measuring member 1 is parallel to the annular seam of the lining segment during pasting, and the pasting position is recorded as B1. The second measuring member 2 and the third measuring member 3 are pasted on both sides of the longitudinal seam of the segment respectively, and the second measuring member 2 and the third measuring member 3 are parallel to the longitudinal seam of the segment, and the pasting positions are recorded as A2 and A1 respectively. The first measuring meter bracket 4 and the second measuring meter bracket 5 are installed on the top of the first measuring member 1 and the second measuring member 2 and fixed with the fixing pin 8. The first micrometer 6 and the second micrometer 7 are installed on the ends of the first measuring meter bracket 4 and the second measuring meter bracket 5, so that the measuring contacts of the first measuring meter bracket 4 and the second measuring meter bracket 5 are in contact with the top surface of the third measuring member 3, and there are certain initial readings. The initial readings of the first measuring meter bracket 4 and the second measuring meter bracket 5 are recorded and recorded as S1 and S1' respectively;
[0032] At time T, read the final readings S2 and S2' of the first micrometer 6 and the second micrometer 7 respectively. The longitudinal joint misalignment between A1 and A2 is: |S'2-S'1|, the circumferential joint misalignment between A1 and B1 is: |S2-S1|, and the circumferential joint misalignment between different shield tunnel segments A2 and B1 is: ||S'2-S'1|±|S2-S1||;
[0033] Every several T moments, the reading of the micrometer is read to obtain the time-varying curve of the shield tunnel segment misalignment.
[0034] The above is only a preferred embodiment of the utility model, which is only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences can be made within the spirit and scope defined by the claims of the utility model, but they will all fall within the scope of protection of the utility model.
Claims
1. A shield tunnel segment staggered assembly and misalignment measuring device, characterized in that: The device comprises a first measuring member, a second measuring member and a third measuring member which are separately arranged, wherein the tops of the first measuring member and the second measuring member are both provided with holes for connection, the holes of the first measuring member and the second measuring member are respectively provided with a first measuring gauge bracket and a second measuring gauge bracket, and the ends of the first measuring gauge bracket and the second measuring gauge bracket are respectively connected with a first micrometer and a second micrometer; The measuring contacts of the first micrometer and the second micrometer respectively abut against the top end of the third measuring member, and the first micrometer and the second micrometer respectively measure the third measuring member through the abutment.
2. A shield tunnel segment staggered assembly and misalignment measuring device as claimed in claim 1, characterized in that: The first measuring member is arranged on one side of the initial segment annular joint formed by the staggered assembly of adjacent shield tunnel segments. The first measuring member and the second measuring member have the same structure. Both the first measuring member and the second measuring member are U-shaped structures. The first measuring member and the second measuring member are arranged perpendicular to each other.
3. A shield tunnel segment staggered assembly and misalignment measuring device as claimed in claim 1, characterized in that: The second measuring member and the third measuring member are respectively arranged on both sides of the longitudinal seam of the segments formed by the staggered assembly of adjacent shield tunnel segments.
4. A shield tunnel segment staggered assembly and misalignment measuring device as claimed in claim 1, characterized in that: The third measuring member is a U-shaped structure. The height of the third measuring member is higher than the heights of the first measuring member and the second measuring member. The third measuring member and the second measuring member are arranged parallel to each other.
5. The shield tunnel segment staggered assembly and misaligned measurement device according to claim 3, characterized in that: The second measuring member and the third measuring member are arranged parallel to the longitudinal seam of the pipe segment, and the third measuring member is arranged perpendicular to the first measuring member.
6. A shield tunnel segment staggered assembly and misalignment measuring device as claimed in claim 1, characterized in that: The ends of the first measuring meter bracket and the second measuring meter bracket respectively match the inner wall surfaces of the holes at the tops of the first measuring member and the second measuring member, and the first measuring meter bracket and the second measuring meter bracket are supported by the holes and are perpendicular to the top surfaces of the first measuring member and the second measuring meter bracket.
7. The shield tunnel segment staggered assembly and misalignment measuring device according to claim 1, characterized in that: The holes opened on the tops of the first measuring member and the second measuring member extend transversely to form screw holes, and the screw holes are respectively connected with fixing pins for locking the first measuring meter bracket and the second measuring meter bracket through internal threads.
8. The shield tunnel segment staggered assembly and misalignment measuring device according to claim 1, characterized in that: The measuring ends of the first micrometer and the second micrometer are arranged on the same axis, the axis is parallel to the first measuring member, and a gap is arranged between the measuring ends of the first micrometer and the second micrometer.