Building foundation settlement detection structure

Abstract

The utility model relates to the technical field of building engineering detection, in particular to a building foundation settlement detection structure which comprises a pile foundation, a graduated scale, a detection frame and a first laser emission mechanism. The upper ends of the pile foundations protrude out of the foundation ground, and the lower ends of the pile foundations extend downwards to the hard soil layer. The graduated scale is vertically arranged on the top face of the pile foundation, and height scale marks are arranged on the graduated scale in the vertical direction. And the detection frame is arranged on the foundation settlement detection ground. The first laser emission mechanism is fixed on the detection frame, and in an initial state, the first laser emission mechanism horizontally emits laser to one side, provided with the height scale marks, of the calibrated scale. The lower end of the pile foundation extends to a hard soil layer, settlement of the pile foundation is avoided, it can be guaranteed that the height of the graduated scale is unchanged, and the graduated scale serves as a reference. In an initial state, the first laser emitting mechanism emits laser to the graduated scale, an initial numerical value is recorded, and after the foundation settles, the first laser emitting mechanism emits laser again to perform settlement detection.

Description

Technical Field

[0001] This utility model relates to the field of building engineering testing technology, and more specifically, to a building foundation settlement testing structure. Background Technology

[0002] Before the construction of buildings and geotechnical structures, the foundation already contains self-weight stress caused by the soil's own weight. The loads of buildings and geotechnical structures are transferred to the foundation through the bottom surface of the foundation or embankment, causing changes in the state of the natural soil layers. The vertical deformation of the foundation surface is called foundation settlement. Currently, foundation settlement testing is required during construction surveying for building projects, and foundation settlement testing devices are generally used in this process.

[0003] Existing technology, such as the utility model patent with publication number CN221173361 U, discloses a foundation settlement detection device, including a mounting base. The mounting base has multiple sets of fixed rods arranged circumferentially, and connecting rods are slidably mounted on the fixed rods. The mounting base has circumferential grooves, and a collar is embedded in the grooves and rotatably connected to the mounting base. One end of the fixed rod is fixedly connected to the collar. The top of the mounting base has a sliding groove communicating with the grooves, and a slider is slidably mounted in the sliding groove. The top of the collar has multiple sets of toothed grooves spaced circumferentially, and the bottom of the slider has a toothed block that matches the toothed grooves. In use, the base is fixedly placed on the ground. When the ground settles, the sliding rod descends along the collar, and the ground settlement can be detected by observing its descent length. Its drawback is that it is difficult to ensure that the base installation location does not settle during foundation settlement. When the foundation at the bottom of the base and the bottom of the sliding rod settle simultaneously, measurement errors will occur, leading to inaccurate measurement results. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a building foundation settlement detection structure that can solve the above problems.

[0005] A foundation settlement detection structure includes a pile foundation, a scale, a detection frame, and a first laser emitting mechanism. The upper end of the pile foundation protrudes from the ground surface, and the lower end extends downward into the hard soil layer. The scale is vertically mounted on the top surface of the pile foundation, and the scale has height graduations along the vertical direction. The detection frame is mounted on the ground at the foundation settlement detection location. The first laser emitting mechanism is fixed to the detection frame. In the initial state, the first laser emitting mechanism horizontally emits a laser beam to the side of the scale with the height graduations.

[0006] Furthermore, the bottom of the testing frame is provided with three adjustable legs, which are arranged in a triangle, and the top surface of the testing frame is provided with a spirit level.

[0007] Furthermore, a protractor is provided on one side of the scale with height graduations, and the protractor can move up and down along the scale.

[0008] Furthermore, the scale is vertically provided with an adjustment hole, which is elongated in shape, and the protractor is provided with an adjustment bolt that passes through the adjustment hole.

[0009] Furthermore, the protractor is made of a transparent material.

[0010] Furthermore, a second laser emitting mechanism is provided on the outside of the detection frame, and the second laser emitting mechanism is vertically arranged; a receiver is provided directly below the second laser emitting mechanism, and a first connecting ring and a second connecting ring are nested in sequence on the outside of the receiver. The opposite sides of the receiver are rotatably connected to the first connecting ring through a first rotating shaft, and the opposite sides of the first connecting ring are rotatably connected to the second connecting ring through a second rotating shaft. The first rotating shaft and the second rotating shaft are arranged perpendicular to each other.

[0011] Furthermore, the receiver has a circular or hollow hemispherical structure with an open top, and a detection line is provided on the upper surface of the receiver, the detection line including multiple circular lines with different diameters and the same center.

[0012] Furthermore, the second laser emitting mechanism and receiver are disposed on the side of the detection frame opposite to the side where the first laser emitting mechanism emits laser light. The upper end of the second laser emitting mechanism is connected to the detection frame via a first horizontal plate, and the end of the second connecting ring near the detection frame is connected to the detection frame via a second horizontal plate.

[0013] Furthermore, the adjustable support leg includes a rod and a sleeve, with one end of the rod inserted into the sleeve and threadedly connected to the sleeve.

[0014] Furthermore, the top surface of the pile foundation is provided with a slot, which is adapted to a scale, and the lower end of the scale is detachably inserted into the slot.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The building foundation settlement detection structure of this utility model, by setting up pile foundations and a scale, with the lower end of the pile foundation extending into the hard soil layer, avoids pile foundation settlement and ensures that the height of the scale remains constant, thus making the scale a reference. The detection frame is set at the foundation settlement detection location. In the initial state, the first laser emitting mechanism horizontally emits a laser towards the side of the scale with graduations, and the initial value is recorded. After foundation settlement occurs, the first laser emitting mechanism emits a laser towards the scale again, and the value is recorded, thus enabling the detection of building foundation settlement.

[0017] The building foundation settlement detection structure of this utility model has three adjustable legs at the bottom of the detection frame and a spirit level at the top. During installation, the height of the three adjustable legs is adjusted, and the state of the spirit level is observed to ensure that the first laser emitting mechanism can emit laser light horizontally in the initial state after installation. When settlement occurs, the state of the spirit level can be observed to determine whether the settlement is uniform. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the building foundation settlement detection structure in this utility model.

[0020] Figure 2 This is a schematic diagram of the pile foundation and scale ruler in this utility model.

[0021] Figure 3 This is an exploded view of the pile foundation and scale ruler in this utility model.

[0022] Figure 4 This is a structural schematic diagram of the testing frame in this utility model.

[0023] Figure 5 This is a top view of the receiver in this utility model.

[0024] In the diagram: 1. Pile foundation; 2. Ruler; 3. Scale line; 4. Testing frame; 401. Top plate; 402. Bottom plate; 403. Support rod; 5. First laser emitting mechanism; 6. Adjustable support leg; 7. Spirit level; 8. Protractor; 9. Adjustment hole; 10. Adjustment bolt; 11. Second laser emitting mechanism; 12. Receiver; 13. First connecting ring; 14. Second connecting ring; 15. First rotating shaft; 16. Second rotating shaft; 17. Testing line; 18. First horizontal plate; 19. Second horizontal plate; 20. Slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1As shown, the foundation settlement detection structure in this embodiment includes a pile foundation 1, a scale 2, a detection frame 4, and a first laser emitting mechanism 5. The upper end of the pile foundation 1 protrudes from the ground surface, and the lower end extends downward to the hard soil layer. The scale 2 is vertically installed on the top surface of the pile foundation 1, and the scale 2 has height graduation lines 3 along the vertical direction. The detection frame 4 is installed on the ground at the foundation settlement detection location. The first laser emitting mechanism 5 is fixed on the detection frame 4. In the initial state, the first laser emitting mechanism 5 horizontally emits a laser to the side of the scale 2 where the height graduation lines 3 are located.

[0027] Preferred, such as Figure 2 and Figure 3 As shown, the scale ruler 2 is detachably connected to the pile foundation 1. Specifically, in this embodiment, a slot 20 is provided at the upper end of the pile foundation 1. This slot 20 is adapted to the scale ruler 2, and the lower end of the scale ruler 2 is detachably inserted into the slot 20, thereby detachably connecting to the pile foundation 1. The pile foundation 1 can be a concrete pile foundation 1.

[0028] In this embodiment, as Figure 4 As shown, the testing frame 4 includes a top plate 401 and a bottom plate 402 spaced apart, with a support rod 403 between the top plate 401 and the bottom plate 402. Three adjustable legs 6 are arranged in a triangular pattern at the bottom of the bottom plate 402, and a spirit level 7 is mounted on the top plate 401. Since three points determine a unique plane, by setting three adjustable legs 6 at the bottom of the bottom plate 402 of the testing frame 4, adjusting the height of the adjustable legs 6, and observing the spirit level 7, the initial state of the testing frame 4 after installation can be determined, ensuring that the top plate 401 and the bottom plate 402 are horizontal.

[0029] Specifically, the adjustable support 6 includes a rod and a sleeve. Both the rod and the sleeve are perpendicular to the base plate 402. The upper end of the rod is inserted into the sleeve and threadedly connected to the sleeve. The upper end of the sleeve is fixedly connected to the base plate 402 of the testing frame 4.

[0030] In this embodiment, a protractor 8 is provided on one side of the scale 2 where the height scale line 3 is located. The protractor 8 can move up and down along the scale 2. Specifically, an adjustment hole 9 is vertically provided on the scale 2. The adjustment hole 9 has an elongated structure, and an adjustment bolt 10 is provided on the protractor 8, which passes through the adjustment hole 9. The protractor 8 is made of transparent material.

[0031] In this embodiment, a second laser emitting mechanism 11 is provided on the outside of the detection frame 4. The second laser emitting mechanism 11 is vertically arranged, and a receiver 12 is provided directly below the second laser emitting mechanism 11. Figure 5As shown, a first connecting ring 13 and a second connecting ring 14 are nested in sequence on the outside of the receiver 12. The opposite sides of the receiver 12 are rotatably connected to the first connecting ring 13 through a first rotating shaft 15. The opposite sides of the first connecting ring 13 are rotatably connected to the second connecting ring 14 through a second rotating shaft 16. The first rotating shaft 15 and the second rotating shaft 16 are arranged perpendicular to each other, that is, the connecting lines of the two first rotating shafts 15 and the connecting lines of the two second rotating shafts 16 form a cross shape.

[0032] Preferably, the receiver 12 has a circular or hollow hemispherical structure with an open top. A detection line 17 is provided on the upper surface of the receiver 12, comprising multiple circular lines with different diameters and concentric centers. The second laser emitting mechanism 11 and the receiver 12 are located on the side of the detection frame 4 opposite to the side emitting the laser from the first laser emitting mechanism 5. The upper end of the second laser emitting mechanism 11 is connected to the support rod 403 of the detection frame 4 via a first horizontal plate 18. The end of the second connecting ring 14 near the detection frame 4 is connected to the support rod 403 of the detection frame 4 via a second horizontal plate 19.

[0033] By setting up a second laser emitting mechanism 11 and a receiver 12, and since the receiver 12 is provided with a first connecting ring 13 and a second connecting ring 14 on its outer side, and the opposite sides of the receiver 12 are rotatably connected to the first connecting ring 13 via a first rotating shaft 15, and the opposite sides of the first connecting ring 13 are rotatably connected to the second connecting ring 14 via a second rotating shaft 16, the receiver 12 is always in a balanced state. When the receiver 12 is in its original shape, it is always in a horizontal state. The position of the laser emitted by the second laser emitting mechanism 11 on the receiver 12 is used to determine the state of the top plate 401 and the bottom plate 402 of the detection frame 4. This plays an auxiliary role during installation, ensuring that the laser emitted by the second laser emitting mechanism 11 is vertically downward. When the foundation settlement is detected after settlement occurs, the position of the laser emitted by the second laser emitting mechanism 11 on the receiver 12 can be used to determine whether the settlement is uniform and whether the top plate 401 and the bottom plate 402 are tilted. If the settlement is not uniform, further determine the direction of inclination of the top plate 401 and the bottom plate 402, as well as the degree of foundation settlement at the support of the three adjustable feet 6.

[0034] The working principle of the building foundation settlement detection structure in this embodiment is as follows:

[0035] By setting up pile foundation 1 and scale ruler 2, with the lower end of pile foundation 1 extending into the hard soil layer, settlement of pile foundation 1 is avoided, ensuring the height of scale ruler 2 remains constant, thus making scale ruler 2 a reference. The detection frame 4 is set at the foundation settlement detection location. Initially, the first laser emitting mechanism 5 emits a laser horizontally towards the side of scale ruler 2 with graduation lines 3, and the initial value is recorded. After foundation settlement occurs, the first laser emitting mechanism 5 emits a laser towards scale ruler 2 again, and the value is recorded, thus detecting the foundation settlement. Three adjustable legs 6 are set at the bottom of the detection frame 4, and a level bubble 7 is set at the top of the detection frame 4. During installation of the detection frame 4, the height of the three adjustable legs 6 is adjusted, and the state of the level bubble 7 is observed to ensure that the first laser emitting mechanism 5 can emit a laser horizontally in the initial state after installation. When settlement occurs, the state of the level bubble 7 can be observed to determine whether the settlement is uniform.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A structure for detecting building foundation settlement, characterized in that, Include: Pile foundation (1), the pile foundation (1) upper end protrudes from the ground base surface, the lower end extends downward to the hard soil layer; Scale (2), the scale (2) is vertically arranged on the top surface of the pile foundation (1), and the scale (2) is provided with a height scale line (3) in the vertical direction; Detection frame (4), the detection frame (4) is arranged on the ground surface at the foundation settlement detection position; The first laser emitting mechanism (5) is fixed on the detection frame (4), and in the initial state, the first laser emitting mechanism (5) horizontally emits laser to one side of the scale (2) provided with the height scale line (3).

2. The building foundation settlement detection structure according to claim 1, wherein The bottom of the detection frame (4) is provided with three adjustable supporting legs (6), and the three adjustable supporting legs (6) are distributed in a triangular shape. The top surface of the detection frame (4) is provided with a bubble level (7).

3. The building foundation settlement detection structure according to claim 2, wherein One side of the scale (2) provided with the height scale line (3) is provided with a protractor (8), and the protractor (8) can move up and down along the scale (2).

4. The building foundation settlement detection structure according to claim 3, wherein The scale (2) is vertically provided with an adjusting hole (9), the adjusting hole (9) is in a long strip structure, the protractor (8) is provided with an adjusting bolt (10), and the adjusting bolt (10) penetrates the adjusting hole (9).

5. The building foundation settlement detection structure according to claim 4, wherein The protractor (8) is made of transparent material.

6. The building foundation settlement detection structure according to claim 5, wherein The outer side of the detection frame (4) is provided with a second laser emitting mechanism (11), and the second laser emitting mechanism (11) is vertically arranged. A receiver (12) is arranged below the second laser emitting mechanism (11). The outer side of the receiver (12) is sequentially nested with a first connecting ring (13) and a second connecting ring (14). The opposite sides of the receiver (12) are rotatably connected with the first connecting ring (13) through a first rotating shaft (15). The opposite sides of the first connecting ring (13) are rotatably connected with the second connecting ring (14) through a second rotating shaft (16). The first rotating shaft (15) and the second rotating shaft (16) are arranged perpendicular to each other.

7. The building foundation settlement detection structure according to claim 6, wherein The receiver (12) is in a circular or hollow hemispherical structure with an open upper end. The upper surface of the receiver (12) is provided with a detection line (17), and the detection line (17) comprises a plurality of circular lines with different diameters and the same center.

8. The building foundation settlement detection structure according to claim 7, wherein The second laser emitting mechanism (11) and the receiver (12) are arranged on the side of the detection frame (4) away from the first laser emitting mechanism (5) for emitting laser. The upper end of the second laser emitting mechanism (11) is connected with the detection frame (4) through a first horizontal plate (18). One end of the second connecting ring (14) close to the detection frame (4) is connected with the detection frame (4) through a second horizontal plate (19).

9. The building foundation settlement detection structure according to claim 8, wherein The adjustable supporting leg (6) comprises a rod body and a sleeve. One end of the rod body is inserted into the sleeve and threadedly connected with the sleeve.

10. The building foundation settlement detection structure according to claim 9, wherein The top surface of the pile foundation (1) is provided with a slot (20), the slot (20) is matched with the scale (2), and the lower end of the scale (2) can be detachably inserted into the slot (20).

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