Soil body deep settlement deformation measuring device

Abstract

The utility model discloses a soil mass deep settlement deformation measuring device, which comprises a deformation displacement meter, a connecting rod, an elastic telescopic component and an anchoring chassis, and is characterized in that the connecting rod is respectively connected with a pull rod of the deformation displacement meter and the elastic telescopic component; the anchoring chassis is connected with the elastic telescopic assembly and is fixed in a soil body at a measuring point in a measuring hole, and when the soil body settles, the anchoring chassis drives the elastic telescopic assembly to displace. According to the utility model, through the arrangement of the telescopic anchoring chassis, the measuring device and a measuring point soil body can be fixed more firmly, the measuring precision is ensured, and meanwhile, the sealing ring is arranged between the connecting rod and the deformation displacement meter, so that the waterproof effect of the measuring device is effectively ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a settlement monitoring device technical field, especially in a kind of soil deep settlement deformation measuring device. BACKGROUND

[0002] With the development of industrial and civil construction industry, various complex and large engineering buildings are increasing, such as high-rise buildings, large bridges, deep foundation pits, etc. The construction of these engineering buildings changes the original state of the ground, exerts a certain pressure on the foundation and the surrounding stratum, which can easily cause changes in the foundation and the surrounding stratum, and further lead to settlement problems. In order to ensure the normal service life and safety of the building, it is necessary to accurately monitor the settlement of the soil.

[0003] The existing deformation displacement meter is connected by a pull rod, and the bottom end of the pull rod is connected to a circular anchor plate. This structure may completely pull out the pull rod to the bottom end of the measuring point during installation on site. After burying, the soil deformation cannot be fully reflected during measurement of deformation. The circular anchor plate has limited gripping force in the soil and affects the deformation monitoring. SUMMARY

[0004] The utility model aims at overcoming the defects of prior art, providing a kind of soil deep settlement deformation measuring device, by setting up the anchor base plate of telescopic, it can realize the more reliable fixation of measuring device and measuring point soil with guaranteeing the measuring accuracy, and sealing ring is arranged between connecting rod and deformation displacement meter, effectively guarantee the waterproof effect of measuring device.

[0005] The utility model aims at overcoming the defects of prior art, providing a kind of soil deep settlement deformation measuring device, by setting up the anchor base plate of telescopic, it can realize the more reliable fixation of measuring device and measuring point soil with guaranteeing the measuring accuracy, and sealing ring is arranged between connecting rod and deformation displacement meter, effectively guarantee the waterproof effect of measuring device.

[0006] A kind of soil deep settlement deformation measuring device, including deformation displacement meter, further including connecting rod, elastic telescopic component and anchor base plate, the connecting rod is connected with the pull rod of the deformation displacement meter and elastic telescopic component respectively;

[0007] The anchor base plate is connected with the elastic telescopic component and is fixed in the soil of measuring point at the measuring hole, when soil settlement, elastic telescopic component is displaced by anchor base plate.

[0008] Further, the anchor base plate includes a disc body and at least one telescopic rod movably connected to the disc body, the telescopic rod is in a contracted state when the disc body extends into the measuring hole to reach the measuring point, and the telescopic rod is reset and fixed with the soil at the measuring point when the disc body reaches the measuring point.

[0009] Further, the telescopic rod is rotatably connected to the disc body by a connecting shaft, and the axis of the connecting shaft is perpendicular to the axis of the measuring hole.

[0010] Further, a torsional spring is provided on the connecting shaft.

[0011] Further, a sealing ring is arranged between the connecting rod and the deformation displacement meter.

[0012] Further, the elastic telescopic assembly comprises a sleeve, a first connecting seat, a second connecting seat and a spring, the first connecting seat is coaxially arranged in the sleeve, the second connecting seat is arranged at the bottom end of the sleeve, the spring is arranged between the first connecting seat and the second connecting seat, the connecting seat is connected with the first connecting seat, and the anchoring base is connected with the second connecting seat.

[0013] Further, the second connecting seat is provided with a connecting rod at the bottom, the anchoring base is provided with a connecting piece, and the anchoring base is detachably connected with the connecting rod through the connecting piece.

[0014] Further, the connecting piece is a hoop.

[0015] The utility model discloses the beneficial effect is:

[0016] The utility model discloses the anchoring base of setting up telescopic can realize the more firm fixing of measuring device and measuring point earth body with the guarantee measuring precision of deformation displacement meter, and the sealing ring is arranged between the connecting rod and the deformation displacement meter, and the waterproof effect of measuring device is effectively guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the earth body deep layer settlement deformation measuring device in the utility model embodiment 1.

[0018] Figure 2 It is the state diagram of telescopic rod of anchoring base when retraction.

[0019] Figure 3 It is the state diagram of telescopic rod of anchoring base when expansion.

[0020] Figure 4 It is the state diagram of telescopic rod of anchoring base when fixing with measuring point earth body.

[0021] Figure 5 It is the whole structure schematic diagram of the earth body deep layer settlement deformation measuring device in the utility model embodiment 2.

[0022] In the drawing, 1, deformation displacement meter, 2, connecting rod, 3, elastic telescopic assembly, 4, anchoring base, 5, disc body, 6, telescopic rod, 7, connecting shaft, 8, torsional spring, 9, sealing ring, 10, sleeve, 11, first connecting seat, 12, second connecting seat, 13, spring, 14, connecting rod, 15, connecting piece, 16, cylinder body, 17, piston rod. DETAILED DESCRIPTION

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. 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 without creative effort are within the protection scope of this utility model.

[0024] See Figures 1-5 This utility model provides a technical solution:

[0025] Example 1:

[0026] like Figures 1-4 As shown, a soil deep settlement deformation measuring device includes a deformation displacement gauge 1, a connecting rod 2, an elastic telescopic component 3, and an anchoring base 4. The connecting rod 2 is connected to the pull rod of the deformation displacement gauge 1 and the elastic telescopic component 3 respectively. A sealing ring 9 is provided between the connecting rod 2 and the deformation displacement gauge 1.

[0027] The anchoring base plate 4 is connected to the elastic expansion component 3 and fixed in the soil at the measuring point in the measuring hole. When the soil settles, the elastic expansion component 3 is displaced by the anchoring base plate 4.

[0028] like Figures 2-4 As shown, the anchoring base plate 4 includes a plate body 5 and three telescopic rods 6 that are movably connected to the plate body 5. Before the plate body 5 extends into the measuring hole and reaches the measuring point, the telescopic rods 6 are in a retracted state. When the plate body 5 reaches the measuring point, the telescopic rods 6 are reset and fixed to the soil at the measuring point.

[0029] The disc body 5 has three connecting grooves along its circumference. The telescopic rod 6 is rotatably connected to the disc body 5 via a connecting shaft 7, the axis of which is perpendicular to the axis of the measuring hole. A torsion spring 8 is fitted onto the connecting shaft 7. The two ends of the torsion spring 8 are fixed to the connecting shaft 7 and the disc body 5, respectively.

[0030] The elastic telescopic component 3 includes a sleeve 10, a first connecting seat 11, a second connecting seat 12, and a spring 13. The first connecting seat 11 is coaxially and slidably disposed inside the sleeve 10. The second connecting seat 12 is disposed at the bottom end of the sleeve 10. The spring 13 is disposed between the first connecting seat 11 and the second connecting seat 12. The connecting seat is connected to the first connecting seat 11. A connecting rod 14 is provided at the bottom of the second connecting seat 12. A connecting member 15 is provided on the anchoring base 4. The connecting member 15 is a clamp. The anchoring base 4 is detachably connected to the connecting rod 14 through the clamp.

[0031] In this embodiment, spring 13 includes a tension spring and a compression spring. The tension spring is located at the upper end of the compression spring, and the tension spring and the compression spring are connected by a tension-compression connecting seat, which is slidably disposed within the sleeve 10. With this configuration, the device is suitable for applications with large soil deformation and coarse measurement accuracy. The arrangement of the tension spring and the compression spring ensures that the measuring device can be used to measure both compressive (soil being squeezed) deformation and tensile (soil settlement) deformation.

[0032] It should be noted that a rigid sleeve is installed on the outside of the connecting rod, and the connecting rod can slide along its axial direction inside the rigid sleeve. When the concrete is poured, it is poured into the deformation displacement gauge 1, thereby ensuring the integrity of the measuring device and the soil.

[0033] Working principle: A measuring hole is pre-drilled, and the measuring device is installed inside. During installation, the telescopic rod 6 rotates around the connecting shaft 7 due to the pressure from the hole wall (at this time, the angle between the axis of the telescopic rod 6 and the axis of the disc 5 is less than 90 degrees), and then retracts. When installed in place, after pouring concrete, the telescopic rod 6 returns to its original position due to the thrust of the concrete (at this time, the axis of the telescopic rod 6 is perpendicular to the axis of the disc 5), thus making the anchoring base 4 more securely fixed to the soil at the measuring point.

[0034] When the soil at the measuring point settles, the anchoring base 4 moves with the soil at the measuring point, which in turn drives the elastic expansion component 3 to move. The displacement is collected by the displacement gauge.

[0035] When it is necessary to measure soil at different depths, a connecting rod 2, elastic expansion component 3, and anchoring base 4 can be connected in series under the anchoring base 4. When the depth increases, it is only necessary to increase the number of connecting rods 2, elastic expansion component 3, and anchoring base 4.

[0036] The movement process of the entire device during measurement: the deformation of the soil at the measuring point causes the spring to stretch or compress, the spring drives the connecting rod to move, and the displacement gauge rod connected to the connecting rod moves. The displacement gauge then measures the soil deformation through changes in its internal resistance. The specific working principle of the displacement gauge is existing technology and will not be elaborated here. The sleeve 10 is designed so that when it is fixed to the concrete inside the measuring hole, the spring inside is not interfered with by the (concrete) displacement of the soil.

[0037] This invention achieves a more secure fixation between the measuring device and the soil at the measuring point by setting a retractable anchoring base, thus ensuring measurement accuracy. At the same time, a sealing ring is provided between the connecting rod and the deformation displacement gauge, which effectively ensures the waterproof effect of the measuring device.

[0038] Example 2:

[0039] The difference between this embodiment and Embodiment 1 is that, as Figure 5As shown, in this embodiment, the elastic telescopic component is a micro-variable piston / air rod, which can be applied to high-precision measurement of micro-variables. Taking the piston as an example: the piston cylinder 16 is equivalent to the fixed sleeve in embodiment 1, and the piston rod 17 is equivalent to the spring in the embodiment. The two ends of the piston rod 17 extend from the cylinder and are respectively connected to the connecting rod 2 and the anchoring plate 4.

[0040] Before installation, compress the piston rod to its lowest point. After the measuring device is in place, pull the piston rod to position it in the middle of the sleeve. This ensures that the piston has a corresponding displacement when the soil compresses or settles. The measurement process and principle are the same as in Example 1, and will not be repeated here.

[0041] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A device for measuring deep settlement and deformation of soil, comprising a deformation displacement gauge, characterized in that: It also includes a connecting rod, an elastic telescopic component, and an anchoring base, wherein the connecting rod is connected to the pull rod and the elastic telescopic component of the deformation displacement gauge, respectively; The anchoring base is connected to the elastic expansion component and fixed in the soil at the measuring point in the measuring hole. When the soil settles, the elastic expansion component is displaced by the anchoring base.

2. The soil deep settlement and deformation measuring device according to claim 1, characterized in that: The anchoring base includes a plate body and at least one telescopic rod movably connected to the plate body. Before the plate body extends into the measuring hole and reaches the measuring point, the telescopic rod is in a retracted state. When the plate body reaches the measuring point, the telescopic rod resets and is fixed to the soil at the measuring point.

3. The soil deep settlement and deformation measuring device according to claim 2, characterized in that: The telescopic rod is rotatably connected to the disc body via a connecting shaft, and the axis of the connecting shaft is set perpendicular to the axis of the measuring hole.

4. The soil deep settlement and deformation measuring device according to claim 3, characterized in that: A torsion spring is fitted onto the connecting shaft.

5. The soil deep settlement and deformation measuring device according to claim 1, characterized in that: A sealing ring is provided between the connecting rod and the deformation displacement gauge.

6. The soil deep settlement and deformation measuring device according to claim 2, characterized in that: The elastic telescopic component includes a sleeve, a first connecting seat, a second connecting seat, and a spring. The first connecting seat is slidably disposed coaxially inside the sleeve, the second connecting seat is disposed at the bottom end of the sleeve, the spring is disposed between the first connecting seat and the second connecting seat, the connecting seat is connected to the first connecting seat, and the anchoring base is connected to the second connecting seat.

7. The soil deep settlement and deformation measuring device according to claim 6, characterized in that: The second connecting seat has a connecting rod at its bottom, and the anchoring base has a connecting piece. The anchoring base is detachably connected to the connecting rod through the connecting piece.

8. The soil deep settlement and deformation measuring device according to claim 7, characterized in that: The connector is a clamp.

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