Shield stratum settlement monitoring device

Abstract

The utility model provides a shield stratum settlement monitoring device, and belongs to the technical field of tunnel construction monitoring. The two supporting frames are fixedly connected to the two ends of the connecting frame respectively; the plurality of detection plates are arranged at intervals and are respectively connected to the connecting frame in a sliding manner; a second through hole is formed in the upper end of each detection plate; the laser transmitter is fixed on a support frame; the laser receiver is fixed on the other support frame; the alarm device is used for giving an alarm when the laser receiver cannot receive the laser signal; in the initial state, the laser transmitter, the laser receiver and the second through hole are located on the same horizontal plane. According to the utility model, the stratum settlement during shield construction is monitored, the possibility of construction accidents is reduced, and the safety during construction is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction monitoring, and more specifically relates to a shield stratum settlement monitoring device. Background Art

[0002] The shield method is a tunnel construction method that uses a shield machine to advance underground, using the shield shell and segments to support the surrounding rock to prevent tunnel collapse.

[0003] In shield construction, cutting devices are used to excavate the soil in front of the excavation face, which is then transported out of the tunnel by excavation machinery and pressurized and pushed forward by jacks at the rear to assemble precast concrete segments to form a tunnel structure.

[0004] During tunnel construction, the geological conditions in the shield construction area may have geological problems such as hard rock layers and silt. These adverse geological conditions can easily cause soil deformation and sinking during construction, which in turn causes ground subsidence. If not handled in time, construction accidents may occur. Therefore, it is necessary to develop a monitoring device for ground subsidence and deformation to ensure construction safety. Utility Model Content

[0005] The utility model aims to provide a shield ground settlement monitoring device to monitor ground settlement during shield construction, reduce the possibility of construction accidents and improve the safety during construction.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a shield stratum settlement monitoring device, comprising:

[0007] Connecting frame;

[0008] Two support frames are fixedly connected to two ends of the connecting frame respectively;

[0009] A plurality of detection plates are arranged at intervals and are respectively slidably connected to the connection frame; a second through hole is formed at the upper end of each detection plate;

[0010] A laser transmitter is fixed on one of the support frames;

[0011] a laser receiver, fixed on another of the support frames; and

[0012] An alarm device, used for issuing an alarm when the laser receiver fails to receive a laser signal;

[0013] In a starting state, the laser transmitter, the laser receiver and the second through hole are located on the same horizontal plane.

[0014] Furthermore, each of the detection plates is provided with a slide groove, and the connecting frame is provided with a plurality of sliding blocks which cooperate with and are slidably connected to the slide groove.

[0015] Furthermore, a fixing plate is connected to the lower side of the detection plate, and a plurality of groups of bumps are connected to both sides of the fixing plate.

[0016] Furthermore, a conical tip plate is provided at the connection between the fixing plate and the detection plate.

[0017] Furthermore, the protrusions are symmetrically arranged on both sides of the fixing plate.

[0018] Furthermore, a pair of L-shaped protective legs are symmetrically hinged on the lower side of the support frame, the ends of the protective legs are connected to pads, and the side walls of the support frame are symmetrically connected to two groups of fixed blocks, and one end of the protective leg is clamped between the fixed blocks.

[0019] Furthermore, a rubber pad is connected to the side wall where the fixing block contacts the protective leg.

[0020] Furthermore, the support frame and the detection plate as well as adjacent detection plates are connected with a plurality of groups of elastic ropes; the elastic ropes are arranged around the laser transmitter, the laser receiver and the second through hole.

[0021] Furthermore, the detection plate is provided with scale markings.

[0022] Furthermore, a first through hole is provided on one of the support frames, and the output end of the laser emitter is provided in the first through hole.

[0023] Compared with the prior art, the utility model has the following technical effects:

[0024] The utility model discloses a shield stratum settlement monitoring device. After being installed on the ground, in the initial state, the laser transmitter, the laser receiver and the second through hole are located in the same horizontal plane. At this time, the laser signal emitted by the laser transmitter passes through the second through hole and is received by the laser receiver. When the stratum settles, the laser transmitter, the laser receiver and the second through hole are no longer located in the same horizontal plane. At this time, the laser signal emitted by the laser transmitter will be blocked by the detection plate so that the laser receiver cannot receive the laser signal, and the alarm device will sound an alarm, thereby prompting the staff to process the corresponding area, thereby realizing the monitoring of stratum settlement during shield construction, reducing the possibility of construction accidents and improving the safety during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 A schematic diagram of the overall structure of a shield stratum settlement monitoring device provided by an embodiment of the utility model;

[0027] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure;

[0028] Figure 3 for Figure 1 Schematic diagram of the local structure;

[0029] Figure 4 for Figure 1 The structural diagram of the detection board;

[0030] Figure 5 for Figure 1 Schematic diagram of the partially enlarged structure.

[0031] Among them, the reference numerals in the figure are:

[0032] 1. Connecting frame; 11. Support frame; 12. Laser transmitter; 121. First through hole; 13. Laser receiver; 14. Slider; 15. Slide groove; 16. Detection plate; 17. Second through hole; 2. Fixing plate; 21. Bump; 22. Conical tip plate; 3. Protective support leg; 31. Pad; 32. Fixed block; 4. Rubber pad; 5. Elastic rope; 6. Scale mark. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0036] The terms "first" and "second" are used only for descriptive purposes to distinguish objects such as substances from each other, and should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. For example, without departing from the scope of the embodiments of the present invention, the first XX may also be referred to as the second XX, and similarly, the second XX may also be referred to as the first XX. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0037] See also Figure 1-Figure 5 Now, a shield stratum settlement monitoring device provided in an embodiment of the utility model is described.

[0038] In one embodiment of the utility model, a shield stratum settlement monitoring device of the utility model embodiment includes: a connecting frame 1, two support frames 11, a plurality of detection plates 16 arranged at intervals, a laser transmitter 12, a laser receiver 13 and an alarm device (not shown in the figure). The two support frames 11 are respectively fixedly connected to the two ends of the connecting frame 1; the plurality of detection plates 16 arranged at intervals are respectively slidably connected to the connecting frame 1; a second through hole 17 is opened at the upper end of each detection plate 16; the laser transmitter 12 is fixed on one support frame 11; the laser receiver 13 is fixed on the other support frame 11; the alarm device is used to sound an alarm when the laser receiver 13 cannot receive the laser signal. In the initial state, the laser transmitter 12, the laser receiver 13 and the second through hole 17 are located on the same horizontal plane.

[0039] The alarm device can sound an alarm when the laser receiver 13 fails to receive the laser signal emitted by the laser transmitter 12. This technology adopts the existing technology and will not be described in detail in this embodiment. The alarm signal can be any one of sound, light and electrical signals.

[0040] The starting state of this embodiment refers to: the initial monitoring state of the shield stratum settlement monitoring device, at which time no settlement occurs at various places on the ground, and the laser transmitter 12, the laser receiver 13 and the second through hole 17 are located on the same horizontal plane, that is, the laser signal emitted by the laser transmitter 12 can pass through the second through hole 17 and be normally received by the laser receiver 13.

[0041] After a shield stratum settlement monitoring device according to an embodiment of the utility model is installed on the ground, the device is supported and fixed by a support frame 11, so that the bottom ends of multiple detection plates 16 are in contact with the ground. In the initial state, the laser transmitter 12, the laser receiver 13 and the second through hole 17 are located on the same horizontal plane. At this time, the switch of the laser transmitter 12 is turned on, so that the laser signal emitted by the laser transmitter 12 passes through the second through hole 17 and is received by the laser receiver 13; when the stratum settles, the ground will be concave, and then the detection plate 16 at the corresponding position will slide downward, so that the second through hole 17 at the corresponding position will be misaligned, and the laser transmitter 12, the laser receiver 13 and the second through hole 17 will not be on the same horizontal plane. At this time, the laser signal emitted by the laser transmitter 12 will be blocked by the detection plate 16 so that the laser receiver 13 cannot receive the laser signal, and the alarm device will sound an alarm, thereby prompting the staff to process the corresponding area, thereby realizing the monitoring of stratum settlement during shield construction, reducing the possibility of construction accidents, and improving the safety during construction.

[0042] Furthermore, if Figure 4 As shown, in this embodiment, each detection plate 16 is provided with a slide groove 15, and the connecting frame 1 is provided with a plurality of sliders 14 that cooperate with and are slidably connected to the slide groove 15. The sliders 14 and the slide groove 15 can both be convexly arranged, and the sliders 14 are located inside the slide groove 15, so that the detection plate 16 and the connecting frame 1 can slide relative to each other in the upper and lower positions through the cooperation of the slide groove 15 and the sliders 14.

[0043] Furthermore, if Figure 4 As shown, the lower side of the detection plate 16 of this embodiment is connected to a fixed plate 2, and multiple groups of protrusions 21 are connected on both sides of the fixed plate 2. Preferably, the protrusions 21 are symmetrically arranged on both sides of the fixed plate 2. During operation, by arranging the fixed plate 2 below the detection plate 16, the fixed plate 2 is inserted into the corresponding ground during installation. When partial settlement and collapse occur in the middle of the stratum, the soil is contacted by friction during the downward settlement, so that the settlement drives the fixed plate 2 to move downward, and then drags the detection plate 16 located above to move downward, thereby causing the alarm effect of the alarm device. By arranging the fixed plate 2 below the detection plate 16, small settlements in the middle of the stratum can be monitored, the monitoring range of the device is increased, the monitoring effect is improved, and the construction is safer. By arranging the protrusions 21 on the fixed plate 2, the contact surface between the fixed plate 2 and the soil can be increased, so that the fixed plate 2 can be better driven to move downward when the soil settles.

[0044] Furthermore, a conical tip plate 22 is provided at the connection between the fixing plate 2 and the detection plate 16 of this embodiment. By providing the conical tip plate 22, when the fixing plate 2 drives the detection plate 16 to move downward, the obstruction of the stratum can be reduced, making it easier for the detection plate 16 to move downward.

[0045] Furthermore, if Figure 1 and Figure 5 As shown, a pair of L-shaped protective legs 3 are symmetrically hinged on the lower side of the support frame 11 of this embodiment, and pads 31 are connected to the ends of the protective legs 3. Two groups of fixed blocks 32 are symmetrically connected to the side walls of the support frame 11, and one end of the protective leg 3 is clamped between the fixed blocks 32. During operation, by arranging the protective legs 3 on the support frame 11, after the support frame 11 is placed on the stratum, the protective legs 3 are rotated so that the pads 31 and the stratum surface fit together, and at the same time, the other end of the protective legs 3 is clamped between the fixed blocks 32, so that the protective legs 3 have a stabilizing and reinforcing effect on the support frame 11, making the support of the support frame 11 more stable during operation, reducing the possibility of the support frame 11 tipping over due to collision, and increasing the stability of the support frame 11 during operation. At the same time, after the protective legs 3 are used, the protective legs 3 can be rotated again so that the protective legs 3 are rotated between the fixed blocks 32 again, as shown in FIG. Figure 5 As shown, the protective leg 3 can be fixed, reducing the space occupied by the protective leg 3.

[0046] Furthermore, the side wall where the fixing block 32 of this embodiment contacts the protective leg 3 is connected with a rubber pad 4. During operation, by arranging the rubber pad 4 on the fixing block 32, when the protective leg 3 needs to be fixed by the fixing block 32 after use, the rubber pad 4 can increase the friction force on the protective leg 3, thereby reducing the possibility of the protective leg 3 falling off from the fixing block 32, and improving the stability of the fixing block 32 in accommodating the protective leg 3.

[0047] Furthermore, in this embodiment, the support frame 11 and the detection plate 16 and the adjacent detection plates 16 are connected with multiple sets of elastic ropes 5; the elastic ropes 5 are arranged around the laser emitter 12, the laser receiver 13 and the second through hole 17. During operation, by sleeved elastic ropes 5 between the laser emitter 12, the laser receiver 13 and the second through hole 17, it is possible to reduce the false alarm caused by large foreign matter flying to the laser path and blocking the laser, and reduce the approach of large foreign matter through the protection of the elastic ropes 5. At the same time, because the elastic ropes 5 are elastically arranged, when the detection plate 16 is lowered, it will not affect the movement of the detection plate 16, so the arrangement of the elastic ropes 5 can improve the accuracy and stability of monitoring.

[0048] Furthermore, if Figure 1 , Figure 2 , Figure 4 As shown, the detection plate 16 of this embodiment is provided with scale marks 6. The scale marks 6 are arranged in a uniform array on the side wall of the detection plate 16. During operation, by providing the scale marks 6 on the detection plate 16, the settlement depth occurring at the corresponding position can be intuitively observed, which is conducive to the planning of protective measures and improves construction efficiency.

[0049] Furthermore, if Figure 1-Figure 3 As shown, one of the support frames 11 of this embodiment is provided with a first through hole 121, and the output end of the laser emitter 12 is provided in the first through hole 121. In this way, the laser emitted by the laser emitter 12 passes through the first through hole 121 and the plurality of second through holes 17 in sequence and is received by the laser receiver 13.

[0050] The working process of a shield stratum settlement monitoring device according to an embodiment of the utility model is as follows:

[0051] During shield construction, multiple sets of shield stratum settlement monitoring devices of this embodiment are placed on the stratum surface at different positions, and the devices are supported and fixed by the support frame 11, so that the bottom ends of multiple detection plates 16 are in contact with the ground. At this time, the switch of the laser transmitter 12 is turned on, so that the laser emitted by the laser transmitter 12 can pass through the first through hole 121 and the second through hole 17, and then the laser receiver 13 receives the signal. When the shield stratum settles, the ground will be sunken, and then the detection plate 16 at the corresponding position will slide downward, so that the second through hole 17 at the corresponding position will be misaligned, resulting in the laser signal emitted by the laser transmitter 12 being blocked by the detection plate 16 at the corresponding position, and then the laser receiver 13 cannot receive the laser signal. At this time, the alarm device will sound an alarm, so that the staff can process the corresponding area, thereby realizing the monitoring of stratum settlement during shield construction, reducing the possibility of construction accidents, and improving the safety during construction.

[0052] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A shield stratum settlement monitoring device, characterized in that: include: Connecting frame; Two support frames are fixedly connected to two ends of the connecting frame respectively; A plurality of detection plates are arranged at intervals and are respectively slidably connected to the connection frame; a second through hole is formed at the upper end of each detection plate; A laser transmitter is fixed on one of the support frames; a laser receiver, fixed on another of the support frames; and An alarm device, used for issuing an alarm when the laser receiver fails to receive a laser signal; In a starting state, the laser transmitter, the laser receiver and the second through hole are located on the same horizontal plane.

2. A shield stratum settlement monitoring device as claimed in claim 1, characterized in that: Each of the detection plates is provided with a slide groove, and the connecting frame is provided with a plurality of sliding blocks which cooperate with and are slidably connected to the slide groove.

3. A shield stratum settlement monitoring device as claimed in claim 1, characterized in that: A fixing plate is connected to the lower side of the detection plate, and a plurality of groups of bumps are connected to both sides of the fixing plate.

4. A shield stratum settlement monitoring device as claimed in claim 3, characterized in that: A conical tip plate is provided at the connection between the fixing plate and the detection plate.

5. A shield stratum settlement monitoring device as claimed in claim 3, characterized in that: The protrusions are symmetrically arranged on both sides of the fixing plate.

6. A shield stratum settlement monitoring device as claimed in claim 1, characterized in that: A pair of L-shaped protective legs are symmetrically hinged on the lower side of the support frame, and pads are connected to the ends of the protective legs. Two groups of fixed blocks are symmetrically connected to the side walls of the support frame, and one end of the protective leg is clamped between the fixed blocks.

7. A shield stratum settlement monitoring device as claimed in claim 6, characterized in that: A rubber pad is connected to the side wall where the fixing block contacts the protective leg.

8. A shield stratum settlement monitoring device as claimed in claim 1, characterized in that: The support frame and the detection plate as well as adjacent detection plates are connected with a plurality of groups of elastic ropes; the elastic ropes are arranged around the laser transmitter, the laser receiver and the second through hole.

9. A shield stratum settlement monitoring device as claimed in claim 1, characterized in that: The detection plate is provided with scale marks.

10. A shield stratum settlement monitoring device according to any one of claims 1 to 9, characterized in that: A first through hole is provided on one of the support frames, and the output end of the laser emitter is provided in the first through hole.

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