Roadway two-side deformation dense point location measuring device

Abstract

The utility model belongs to the technical field of roadway measurement, and provides a roadway two-side deformation dense point location measuring device which comprises a support arm and a measuring arm, the support arm is vertically arranged in a roadway and close to roadway sides, and the height of the support arm is adjustable, so that the upper end of the support arm abuts against the top of the roadway, and the lower end of the support arm abuts against the bottom of the roadway; the measuring arm is transversely arranged between the support arm and the roadway side, the measuring arm comprises a positioning sleeve and a measuring rod, one end of the positioning sleeve is vertically butted with the support arm, and the other end of the positioning sleeve is sleeved with one end of the measuring rod. The device is mainly used for measuring the large-area deformation of the roadway side of the rectangular roadway, has strong adaptability to the rectangular roadway, can carry out long-term measurement work in roadways with different heights and different sections, can realize multi-point measurement, has high accuracy of measurement results, is convenient for workers to quickly observe and collect roadway side deformation information, and has high practical value. And the accuracy of roadway deformation evaluation is improved.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel measurement technology, specifically relating to a device for measuring dense deformation points on both sides of a tunnel. Background Technology

[0002] After the tunnel was excavated, the stress balance of the surrounding rock was disrupted, and the surrounding rock squeezed the tunnel, causing the two sides of the tunnel to shrink and deform inward.

[0003] Currently, the existing method for measuring deformation on both sides of a roadway typically involves marking points on both sides of the roadway to measure the roadway width. In later use, the amount of deformation is determined by measuring the distance between the points. However, the roadway points are often erased or obscured, making them difficult to locate when measurement is needed, which is labor-intensive. Furthermore, this method cannot measure the specific location of the roadway deformation, which can easily lead to inaccurate results and affect the assessment of the roadway.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0005] This invention aims to solve the problem that marker points are easily erased or obscured during long-term roadway measurement, which affects the roadway deformation assessment results, and provides a device for measuring dense deformation points on both sides of the roadway.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for measuring dense deformation points on both sides of a roadway includes: a support arm and a measuring arm. The support arm is erected in the roadway and adjacent to the roadway side. The height of the support arm is adjustable so that the upper end of the support arm touches the top of the roadway and the lower end of the support arm abuts against the bottom of the roadway. The measuring arm is horizontally positioned between the support arm and the roadway side. The measuring arm includes: a positioning sleeve and a measuring rod. One end of the positioning sleeve is perpendicularly connected to the support arm, and the other end of the positioning sleeve is fitted onto one end of the measuring rod. The other end of the measuring rod abuts against the side surface of the roadway side. When the side surface of the roadway side deforms outward, it will squeeze the measuring rod, causing it to gradually retract into the interior of the positioning sleeve.

[0008] In the above-described measuring device for dense deformation points on both sides of the roadway, preferably, the support arm includes: an upper support tube and a lower support tube, with the lower end of the upper support tube sleeved inside the upper end of the lower support tube;

[0009] The surface of the upper support tube has multiple positioning holes spaced apart along the axial direction, and the positioning holes completely penetrate the upper support tube radially.

[0010] Preferably, positioning rods are symmetrically provided on both sides of the upper end of the lower support tube;

[0011] One end of the positioning rod is hinged to the upper side of the lower support tube, so that the other end of the positioning rod swings toward the upper support tube and abuts against its surface.

[0012] Preferably, the two positioning rods are connected to the upper support tube as a whole by bolts;

[0013] The shank of the bolt passes through the positioning hole and simultaneously passes through both positioning rods.

[0014] Preferably, there are multiple measuring arms spaced apart along the axial direction of the support arm.

[0015] Preferably, both the positioning sleeve and the measuring rod have scale lines on their outer surfaces, and the positioning sleeve is transparent.

[0016] Preferably, a screw protrudes horizontally from one end of the positioning sleeve facing the support arm;

[0017] The screw completely penetrates the corresponding upper or lower support tube and is secured by a nut.

[0018] Preferably, the diameter of the screw is smaller than the diameter of the positioning sleeve;

[0019] The screw is misaligned with the positioning hole.

[0020] Preferably, the lower end of the lower support tube is provided with a base;

[0021] The base consists of an adjusting column and a pad, with the adjusting column vertically fixed to the top center of the pad;

[0022] The adjusting column is provided with external threads to thread the lower end of the lower support tube, and the height of the lower support tube can be finely adjusted by rotating the adjusting column.

[0023] Preferably, a rebound rod is sleeved inside the upper end of the upper support tube, and the top of the rebound rod is conical and touches the top of the tunnel roof.

[0024] The upper support tube is equipped with a spring located below the rebound rod, and the bottom of the spring is supported by the uppermost screw that runs through the upper support tube.

[0025] Beneficial effects: This utility model is mainly used to measure the large-area deformation of the roadway sidewalls in rectangular roadways. It is highly adaptable to rectangular roadways and can be used for long-term measurement work in roadways with different heights and cross-sections. It can also achieve multi-point measurement, and the measurement results are highly accurate. It is also convenient for staff to quickly observe and collect roadway sidewall deformation information, thereby improving the accuracy of roadway deformation assessment. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0027] Figure 1 This is a front view schematic diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 This is a schematic front sectional view of the present invention;

[0031] Figure 5 for Figure 4 Enlarged diagram of point B in the middle.

[0032] In the diagram: 1. Positioning sleeve; 2. Measuring rod; 3. Upper support tube; 4. Lower support tube; 5. Positioning hole; 6. Positioning rod; 7. Bolt; 8. Screw; 9. Adjusting column; 10. Pad; 11. Rebound rod; 12. Spring. Detailed Implementation

[0033] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0034] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0036] This embodiment aims to provide a device for measuring dense deformation points on both sides of a roadway. Its main function is to perform large-area deformation measurements at multiple points on the sides of rectangular roadways of different heights and cross-sections, thereby improving the accuracy of roadway deformation assessment.

[0037] Reference Figures 1-5 It includes: a support arm and a measuring arm. The support arm is erected in the tunnel and close to the tunnel wall. The height of the support arm is adjustable so that the upper end of the support arm touches the top of the tunnel and the lower end of the support arm abuts the bottom of the tunnel.

[0038] Specifically, the support arm includes an upper support tube 3 and a lower support tube 4. The lower end of the upper support tube 3 is fitted inside the upper end of the lower support tube 4, and the lower movement of the upper support tube 3 is restricted by a positioning rod 6. Multiple positioning holes 5 are distributed axially along the surface of the upper support tube 3. The positioning holes 5 completely penetrate the upper support tube 3 radially. There is a pair of positioning rods 6, which are symmetrically arranged on the front and rear sides of the upper end of the lower support tube 4. The lower end of the positioning rod 6 is hinged to the upper side of the lower support tube 4 so that the upper end of the positioning rod 6 can swing towards the upper support tube 3 and abut against its surface. At this time, the upper end of the positioning rod 6 corresponds to the positioning hole 5 on the surface of the upper support tube 3. The two positioning rods 6 are connected to the upper support tube 3 as a whole by bolts 7. That is, the shank of the bolt 7 passes through the positioning hole 5 and simultaneously passes through the two positioning rods 6. Then, a nut is fitted on the end of the shank of the bolt 7 for fastening.

[0039] The lower end of the lower support tube 4 is provided with a base, which consists of an adjusting column 9 and a circular pad 10. The adjusting column 9 is vertically welded and fixed to the top center of the pad 10. The adjusting column 9 is provided with external threads, and the lower end of the lower support tube 4 is provided with internal threads to thread the adjusting column 9 and the lower end of the lower support tube 4 together. By rotating the adjusting column 9, the height of the lower support tube 4 can be finely adjusted to ensure that the upper and lower ends of the support arm are stably supported in the roadway.

[0040] A rebound rod 11 is fitted inside the upper end of the upper support tube 3. The top of the rebound rod 11 is conical and touches the tunnel roof. The conical design is to make better contact with the tunnel roof and improve stability. A spring 12 is installed inside the upper support tube 3. The spring 12 is located below the rebound rod 11. The bottom of the spring 12 is supported by a structure that passes through the upper support tube 3. Based on this, when the roof sinks, the rebound rod 11 is compressed and retracts into the upper support tube 3 to buffer the pressure of the tunnel roof and prevent the entire support arm from being crushed.

[0041] The measuring arm is horizontally positioned between the support arm and the roadway side, and multiple measuring arms are spaced apart along the axial direction of the support arm. Each measuring arm includes a positioning sleeve 1 and a measuring rod 2. One end of the positioning sleeve 1 is perpendicularly connected to the support arm. Specifically, a screw 8 protrudes horizontally from the end of the positioning sleeve 1 facing the support arm. This screw 8 completely penetrates the corresponding upper support tube 3 or lower support tube 4 and is then secured with a nut. The bottom of the spring 12 is supported by the uppermost screw 8 that passes horizontally through the support tube 3. The diameter of the screw 8 is smaller than the diameter of the positioning sleeve 1 to ensure stable installation of the positioning sleeve 1. Furthermore, the screw 8 and the positioning hole 5 are offset to avoid interference between them. The other end of the sleeve 1 is fitted over one end of the measuring rod 2, and the other end of the measuring rod 2 rests against the sidewall of the roadway to ensure that the end of the measuring rod 2 is in contact with the sidewall of the roadway, so as to ensure accurate measurement of the roadway deformation. The outer surfaces of both the positioning sleeve 1 and the measuring rod 2 are provided with scale lines, and the positioning sleeve 1 is transparent. When the sidewall of the roadway deforms outward, it will squeeze the measuring rod 2 and gradually retract it into the interior of the positioning sleeve 1. The displacement of the measuring rod 2 inside can be directly observed through the scale lines on the positioning sleeve 1. By setting scale lines on the outside of the measuring rod 2, it is convenient for the staff to understand the specific position of the measuring rod 2.

[0042] The specific usage method is as follows:

[0043] (1) After reaching the location in the roadway that needs to be observed, adjust the height of the support arm to be close to the height of the roadway and install the measuring arm into the positioning hole 5 on the support arm.

[0044] (2) Bring the end of the measuring arm close to the side and adjust the measuring rod 2 to a suitable position to ensure that each measuring arm is in full contact with the side.

[0045] (3) After ensuring that each measuring arm is in full contact with the sidewall, adjust the base to ensure that the tip of the rebound rod 11 is in full contact with the roadway roof.

[0046] (4) After completing the above steps, check whether each component is installed correctly. Once the inspection is completed and the components are qualified, you can start measuring.

[0047] The measuring device provided in this embodiment is mainly used for measuring large-area deformation of the roadway sidewalls in rectangular roadways. It is highly adaptable to rectangular roadways and can perform long-term measurements in roadways at different heights and with different cross-sections. It can also achieve multi-point measurements, with high accuracy and facilitates quick observation and collection of roadway sidewall deformation information by staff, thereby improving the accuracy of roadway deformation assessment. Furthermore, the measuring device has a relatively simple structure with fewer components, making installation convenient. At the same time, due to the high reliability of the components, the workload of subsequent maintenance is greatly reduced, thus reducing maintenance costs.

[0048] It is understood that the above description is merely exemplary and the embodiments of this application do not limit the scope of the application.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A roadway two-side deformation intensive point position measurement device, characterized in that, include: An outrigger is erected in the tunnel and near the tunnel wall. The height of the outrigger is adjustable so that the upper end of the outrigger touches the top of the tunnel and the lower end of the outrigger abuts the bottom of the tunnel. A measuring arm is horizontally positioned between the support arm and the roadway side. The measuring arm includes a positioning sleeve and a measuring rod. One end of the positioning sleeve is perpendicularly connected to the support arm, and the other end of the positioning sleeve is fitted onto one end of the measuring rod. The other end of the measuring rod rests against the side surface of the roadway side. When the side surface of the roadway side deforms outward, it will squeeze the measuring rod, causing it to gradually retract into the interior of the positioning sleeve.

2. The roadway rib deformation intensive point location measuring device according to claim 1, characterized in that, The support arm includes an upper support tube and a lower support tube, with the lower end of the upper support tube sleeved inside the upper end of the lower support tube; The surface of the upper support tube has multiple positioning holes spaced apart along the axial direction, and the positioning holes completely penetrate the upper support tube radially.

3. The roadway rib deformation intensive point location measuring device according to claim 2, characterized in that, Positioning rods are symmetrically provided on both sides of the upper end of the lower support tube; One end of the positioning rod is hinged to the upper side of the lower support tube, so that the other end of the positioning rod swings toward the upper support tube and abuts against its surface.

4. The roadway rib deformation intensive point location measuring device according to claim 3, characterized by, The two positioning rods are connected to the upper support tube by bolts. The shank of the bolt passes through the positioning hole and simultaneously passes through both positioning rods.

5. The roadway rib deformation intensive point location measuring device according to claim 1, characterized by, The measuring arms are distributed at intervals along the axial direction of the support arm.

6. The roadway rib deformation intensive point location measuring device according to claim 1, characterized by, Both the positioning sleeve and the measuring rod have scale lines on their outer surfaces, and the positioning sleeve is transparent.

7. The tunnel sidewall deformation dense point measuring device according to claim 2, characterized in that, A screw protrudes horizontally from one end of the positioning sleeve facing the support arm; The screw completely penetrates the corresponding upper or lower support tube and is secured by a nut.

8. The roadway rib deformation intensive point location measuring device according to claim 7, characterized by, The diameter of the screw is smaller than the diameter of the positioning sleeve; The screw is misaligned with the positioning hole.

9. The roadway rib deformation intensive point location measuring device according to claim 2, characterized by, The lower end of the lower support tube is provided with a base; The base consists of an adjusting column and a pad, with the adjusting column vertically fixed to the top center of the pad; The adjusting column is provided with external threads to thread the lower end of the lower support tube, and the height of the lower support tube can be finely adjusted by rotating the adjusting column.

10. The roadway rib deformation intensive point location measuring device according to claim 7, characterized by, The upper end of the upper support tube is fitted with a rebound rod, the top of which is conical and touches the top of the tunnel roof. The upper support tube is equipped with a spring located below the rebound rod, and the bottom of the spring is supported by the uppermost screw that runs through the upper support tube.

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