Foundation pit support vibration monitoring system

Abstract

The utility model provides a foundation pit support vibration monitoring system, which relates to the technical field of foundation pit vibration monitoring and comprises two groups of vertical monitoring mechanisms and a horizontal monitoring mechanism, each vertical monitoring mechanism comprises a side support rod, a shear block, a connecting frame and a frame plate, and the horizontal monitoring mechanism comprises a fixed seat, a balance block, two groups of horizontal rods and a fixed rail frame. Vibration monitoring is carried out on the foundation pit supporting structure through the supporting shaft, the compression shaft and the rod fixing piece which are integrally combined, monitoring is carried out based on displacement, the equipment is in matched butt joint with the foundation pit supporting structure through movement of the side supporting rod and the compression shaft, and assembling of the supporting structure is facilitated; the monitoring equipment is connected with the foundation pit support structure, the vertical monitoring mechanism monitors vertical vibration of the foundation pit support, the horizontal monitoring mechanism monitors horizontal vibration of the foundation pit support, vibration monitoring of the foundation pit support is achieved through a transverse and longitudinal combined structure, the reliability of vibration data and the applicability of the equipment are guaranteed, and the popularization value is large.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit vibration monitoring, in particular to a foundation pit support vibration monitoring system. Background Art

[0002] Pit support is a measure of support, reinforcement and protection for the side walls of the pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the pit. The support structure system generally includes two parts, namely the retaining structure and the dewatering and water-stopping system. Pile and wall support structures often use steel sheet piles, reinforced concrete sheet piles, column-type cast-in-place piles, underground continuous walls, etc. According to soil conditions and the scale of the pit, they can be designed into cantilever type, internal support type or anchor type. During the construction process, multi-point laid monitoring equipment is usually used to monitor the vibration of the lower pit structure to prevent construction hazards. The existing vibration monitoring method for the lower pit support structure usually uses multi-point arranged sensors to achieve monitoring. However, its support structure is usually a spliced ​​combination of supports, and the structure is usually segmented and there is an offset tolerance in the force direction, which affects the monitoring of the vibration monitoring displacement. Therefore, the existing vibration monitoring equipment for the lower pit support structure is difficult to lay and has low applicability.

[0003] In light of this, the utility model provides an effective solution to the problem that the existing vibration monitoring equipment used for foundation pit support structures is difficult to lay and the structural stress affects the actual monitoring data, and solves the problem that the existing vibration monitoring equipment for foundation pit support structures has low applicability. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a foundation pit support vibration monitoring system. The monitoring equipment of this patent is connected with the foundation pit support structure. The vertical monitoring mechanism monitors the vertical vibration of the foundation pit support, and the horizontal monitoring mechanism monitors the horizontal vibration of the foundation pit support. The vibration monitoring of the foundation pit support is realized by a combined structure combining horizontal and vertical, ensuring the reliability of vibration data and the applicability of the equipment, and has great promotion value.

[0005] The utility model is realized through the following technical solutions:

[0006] A foundation pit support vibration monitoring system includes two groups of vertical monitoring mechanisms and a horizontal monitoring mechanism. The ends of the vertical monitoring mechanisms are connected to the foundation pit support structure, and the two ends of the horizontal monitoring mechanisms are respectively abutted against the lower ends of two adjacent groups of vertical monitoring mechanisms. The vertical monitoring mechanisms monitor the vertical vibration of the foundation pit support, and the horizontal monitoring mechanisms monitor the horizontal vibration of the foundation pit support.

[0007] It can be seen that in the above technical solution, the utility model is connected with the foundation pit support structure as a whole, the vertical monitoring mechanism monitors the vertical vibration of the foundation pit support, and the horizontal monitoring mechanism monitors the horizontal vibration of the foundation pit support, and the vibration monitoring of the foundation pit support is realized by a combined structure combining horizontal and vertical, thereby ensuring the reliability of the vibration data of the monitoring equipment and the applicability of the equipment.

[0008] According to the above technical solution, preferably, the vertical monitoring mechanism includes side support rods, shear blocks, connecting frames and frame plates. The frame plates are fixed on the sides of the side support rods, and the shear blocks and connecting frames are respectively connected to the upper and lower ends of the frame plates.

[0009] It can be seen that in the above technical solution, the end of the vertical monitoring mechanism is connected to the foundation pit support structure, the shear block and the connecting frame are respectively connected to the upper and lower ends of the frame plate, and the shear block and the connecting frame are respectively connected to the foundation pit support structure, which is not only convenient for assembly, but also can realize vibration monitoring through the slight deformation between the shear block and the connecting frame.

[0010] According to the above technical solution, preferably, a compression shaft is provided in the frame plate, and the upper and lower ends of the compression shaft are fixedly connected to the shear block and the connecting frame through support shafts respectively.

[0011] According to the above technical solution, preferably, displacement sensors are provided at the connection points between the upper and lower ends of the compression shaft and the support shaft.

[0012] It can be seen that in the above technical solution, the displacement sensor is used to sense the deformation of the vertical monitoring mechanism, and the vibration of the foundation pit support structure is monitored through the integrated support shaft, compression shaft and fixed rod. The monitoring principle is based on the displacement. Compared with the existing vibration monitoring method, the equipment is adapted to be connected with the foundation pit support structure through the movement of the side support rod and the compression shaft, which facilitates the assembly of the support structure.

[0013] According to the above technical solution, preferably, a fixed rod is fixed between the support shaft on the lower side of the vertical monitoring mechanism and the connecting frame.

[0014] According to the above technical solution, preferably, the horizontal monitoring mechanism includes a fixed seat, a balancing block, two groups of horizontal rods and a track fixing frame. The fixed seat is fixedly arranged relative to the ground, the balancing block is slidably connected to the fixed seat, the two ends of the track fixing frame are connected to the connecting frames at the lower ends of the two groups of vertical monitoring mechanisms, the two ends of the horizontal rod are respectively connected to the balancing block and the connecting frame, and a spirit level for reading the translation distance of the balancing block is provided on the fixed seat.

[0015] It can be seen that, in the technical scheme, the two ends of the fixed rail are connected with the connecting frames at the lower ends of the two groups of vertical monitoring mechanisms, thereby realizing connection and fixation of the adjacent two groups of vertical monitoring mechanisms, and the two ends of the horizontal rod are connected with the balancing block and the connecting frame respectively, the fixed seat is provided with a level for reading the translation distance of the balancing block, thereby when the vertical monitoring mechanism is offset by vibration, the level on the fixed seat can directly read the translation distance of the balancing block, thereby avoiding the influence of the horizontal offset amount after the structural stress offset on the vibration data, so as to further determine the vibration monitoring data, and the applicability of the monitoring equipment is improved.

[0016] According to the technical scheme, preferably, the horizontal rod and the fixed rail are vertically connected with the fixed rod, and a column pipe head is fixed between the horizontal rod and the fixed rod, and a compression shaft pipe is sleeved on the outside of the column pipe head.

[0017] According to the technical scheme, preferably, a connecting rod is sleeved between the horizontal rod and the balancing block.

[0018] The utility model discloses the beneficial effect is:

[0019] (1) the utility model discloses the whole and the foundation pit support structure are linked, and the vertical monitoring mechanism monitors the vertical vibration of the foundation pit support, and the horizontal monitoring mechanism monitors the horizontal vibration of the foundation pit support, and the vibration monitoring of the foundation pit support is realized to the combined structure of horizontal and vertical combination, guarantee the vibration data reliability of the monitoring equipment and the applicability of the equipment.

[0020] (2) the end of the vertical monitoring mechanism of the utility model discloses and the foundation pit support structure are linked, and the shear block and the connecting frame are connected with the upper and lower ends of the frame plate respectively, and the shear block and the connecting frame are connected with the foundation pit support structure respectively, not only convenient for assembly, and can realize vibration monitoring through the slight deformation between the shear block and the connecting frame.

[0021] (3) the two ends of the fixed rail of the utility model are connected with the connecting frames at the lower ends of the two groups of vertical monitoring mechanisms, thereby realizing connection and fixation of the adjacent two groups of vertical monitoring mechanisms, and the two ends of the horizontal rod are connected with the balancing block and the connecting frame respectively, the fixed seat is provided with a level for reading the translation distance of the balancing block, thereby when the vertical monitoring mechanism is offset by vibration, the level on the fixed seat can directly read the translation distance of the balancing block, thereby avoiding the influence of the horizontal offset amount after the structural stress offset on the vibration data, so as to further determine the vibration monitoring data, and the applicability of the monitoring equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model discloses an equal axis side structure schematic diagram shows;

[0023] Figure 2 The utility model discloses an equal axis side structure schematic diagram of vertical monitoring mechanism shows;

[0024] Figure 3 It shows a cross-sectional structural diagram of the vertical monitoring mechanism in the present utility model;

[0025] Figure 4 It shows a cross-sectional structural diagram of the horizontal monitoring mechanism in the present utility model;

[0026] Description of reference numerals:

[0027] 1. Vertical monitoring mechanism; 2. Horizontal monitoring mechanism; 3. Side support rod; 4. Shear block; 5. Connecting frame; 6. Frame plate; 7. Compression shaft; 8. Support shaft; 9. Fixed seat; 10. Balance block; 11. Horizontal rod; 12. Track fixing frame; 13. Fixed rod member; 14. Column tube head; 15. Compression shaft tube; 16. Connecting rod member. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below with reference to the accompanying drawings and the best embodiment. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the utility model.

[0029] In the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0030] As shown in the figure, this embodiment provides a foundation pit support vibration monitoring system, including two groups of vertical monitoring mechanisms 1 and horizontal monitoring mechanisms 2. The end of the vertical monitoring mechanism 1 is connected to the foundation pit support structure, and the two ends of the horizontal monitoring mechanism 2 are respectively abutted against the lower ends of the two adjacent vertical monitoring mechanisms 1. The vertical monitoring mechanism 1 monitors the vertical vibration of the foundation pit support, and the horizontal monitoring mechanism 2 monitors the horizontal vibration of the foundation pit support. The vertical monitoring mechanism 1 includes a side support rod 3, a shear block 4, a connecting frame 5 and a frame plate 6. The frame plate 6 is fixed on the side of the side support rod 3. The shear block 4 and the connecting frame 5 are respectively connected to the upper and lower ends of the frame plate 6. A compression shaft 7 is provided in the frame plate 6. The upper and lower ends of the compression shaft 7 are respectively connected to the support shaft 8. The shear block 4 and the connecting frame 5 are fixedly connected, and displacement sensors are provided at the connections between the upper and lower ends of the compression shaft 7 and the support shaft 8. The monitoring equipment of the present invention is not only easy to assemble, but also can realize vibration monitoring through the slight deformation between the shear block 4 and the connecting frame 5. The horizontal monitoring mechanism 2 includes a fixed seat 9, a balancing block 10, two groups of horizontal rods 11 and a fixed rail frame 12. The fixed seat 9 is fixed relative to the ground, the balancing block 10 is slidably connected to the fixed seat 9, the fixed rail frame 12 passes through the balancing block 10, and the two ends of the fixed rail frame 12 are connected to the connecting frame 5 at the lower end of the two groups of vertical monitoring mechanisms 1, and the two ends of the horizontal rod 11 are respectively connected to the balancing block 10 and the connecting frame 5. A spirit level for reading the translation distance of the balancing block 10 is provided on the fixed seat 9.

[0031] The utility model is connected with the foundation pit support structure as a whole. The vertical monitoring mechanism 1 monitors the vertical vibration of the foundation pit support, and the horizontal monitoring mechanism 2 monitors the horizontal vibration of the foundation pit support. The vibration monitoring of the foundation pit support is realized by a combined structure combining horizontal and vertical directions, thereby ensuring the reliability of the vibration data of the monitoring equipment and the applicability of the equipment. The displacement sensor is used to sense the deformation of the vertical monitoring mechanism 1 to realize the monitoring of the vertical vibration. The two ends of the track fixing frame 12 are connected to the connecting frame 5 at the lower ends of the two groups of vertical monitoring mechanisms 1, thereby realizing the connection and fixing of the two adjacent groups of vertical monitoring mechanisms 1, and the two ends of the horizontal rod 11 are respectively connected to the balancing block 10 and the connecting frame 5. A spirit level for reading the translation distance of the balancing block 10 is provided on the fixing seat 9. When the vertical monitoring mechanism 1 vibrates and deviates, the spirit level on the fixing seat 9 can directly read the translation distance of the balancing block 10, thereby avoiding the influence of the horizontal offset after the structure is force-offset on the vibration data, so as to further determine the vibration monitoring data and improve the applicability of the monitoring equipment.

[0032] Optionally, in a possible implementation manner, a fixed rod 13 is fixed between the support shaft 8 on the lower side of the vertical monitoring mechanism 1 and the connecting frame 5 .

[0033] Optionally, in a possible embodiment, the horizontal rod 11 and the fixed rail frame 12 are both vertically connected to the fixed rod member 13, and a column tube head 14 is fixed between the horizontal rod 11 and the fixed rod member 13, and a compression shaft tube 15 is sleeved on the outer side of the column tube head 14.

[0034] Optionally, in a possible implementation manner, a connecting rod 16 is sleeved between the horizontal rod 11 and the balancing weight 10 .

[0035] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A foundation pit support vibration monitoring system, characterized in that: It includes two groups of vertical monitoring mechanisms and horizontal monitoring mechanisms. The ends of the vertical monitoring mechanisms are connected to the foundation pit support structure, and the two ends of the horizontal monitoring mechanisms are respectively abutted against the lower ends of two adjacent groups of vertical monitoring mechanisms. The vertical monitoring mechanisms monitor the vertical vibration of the foundation pit support, and the horizontal monitoring mechanisms monitor the horizontal vibration of the foundation pit support.

2. A foundation pit support vibration monitoring system according to claim 1, characterized in that: The vertical monitoring mechanism includes a side support rod, a shear block, a connecting frame and a frame plate. The frame plate is fixed to the side of the side support rod, and the shear block and the connecting frame are respectively connected to the upper and lower ends of the frame plate.

3. A foundation pit support vibration monitoring system according to claim 2, characterized in that: A compression shaft is provided in the frame plate, and the upper and lower ends of the compression shaft are fixedly connected to the shear block and the connecting frame through support shafts respectively.

4. A foundation pit support vibration monitoring system according to claim 3, characterized in that: Displacement sensors are provided at the connection points between the upper and lower ends of the compression shaft and the support shaft.

5. The foundation pit support vibration monitoring system according to claim 3, characterized in that: A fixed rod is fixed between the support shaft on the lower side of the vertical monitoring mechanism and the connecting frame.

6. The foundation pit support vibration monitoring system according to claim 5, characterized in that: The horizontal monitoring mechanism includes a fixed seat, a balancing block, two groups of horizontal rods and a track fixing frame. The fixed seat is fixedly arranged relative to the ground, the balancing block is slidably connected to the fixed seat, the two ends of the track fixing frame are connected to the connecting frames at the lower ends of the two groups of vertical monitoring mechanisms, the two ends of the horizontal rod are respectively connected to the balancing block and the connecting frame, and a spirit level for reading the translation distance of the balancing block is provided on the fixed seat.

7. The foundation pit support vibration monitoring system according to claim 6, characterized in that: The horizontal rod and the rail fixing frame are both vertically connected to the fixed rod member, and a column tube head is fixed between the horizontal rod and the fixed rod member, and a compression shaft tube is sleeved on the outer side of the column tube head.

8. The foundation pit support vibration monitoring system according to claim 7, characterized in that: A connecting rod is sleeved between the horizontal rod and the balancing block.

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