Pile foundation settlement amount detection device

Abstract

The utility model relates to the technical field of pile foundation settlement detection, in particular to a pile foundation settlement amount detection device which comprises a base, an observation ruler and a caliper, the observation ruler is vertically arranged and fixedly connected to the base, the caliper comprises a main ruler and an auxiliary ruler, the main ruler and the auxiliary ruler are both perpendicular to the observation ruler, and the main ruler and the auxiliary ruler are both in sliding connection with the observation ruler in the vertical direction. The main ruler and the auxiliary ruler are vertically flush and abut against each other front and back, the main ruler and the auxiliary ruler are detachably and fixedly connected, a fastening mechanism is arranged at the end, sliding on the observation ruler, of the main ruler, and a heavy hammer is arranged on the lower edge of the auxiliary ruler. The problems that when an existing high-precision pile foundation settlement detection ruler is adopted to measure data after pile foundation settlement, a sliding base needs to be moved again, in the sliding base moving process, the whole detection ruler can move possibly, the position of the sliding base on the upper edge of a pile foundation is changed after the sliding base is attached to the upper edge of the pile foundation again, and the measurement accuracy is poor are solved. And the detection precision is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation settlement detection, in particular to a pile foundation settlement amount detection device. Background Technique

[0002] A pile foundation is a deep foundation that connects the tops of several piles into a whole through a bearing platform to jointly bear static and dynamic loads. A pile is a vertical or inclined foundation member set in the soil, and its function is to penetrate soft, highly compressible soil layers or water and transfer the loads borne by the pile to a harder, denser or less compressible foundation bearing stratum. Usually, the piles in a pile foundation are called foundation piles. With the continuous development of the construction industry, people pay more and more attention to the safety of buildings. Therefore, the quality inspection of building foundation piles is particularly important, and the detection of the settlement amount of the pile foundation is also an essential item.

[0003] In the prior art, for example, a high-precision pile foundation settlement detection ruler proposed in a Chinese patent with the publication number CN217442553U. By vertically placing the main ruler on one side of the pile foundation, sliding the sliding seat to be in contact with the upper edge of the pile foundation, tightening the locking screw and recording the scale indicated by the pointer. After the pile foundation settles, loosen the locking screw again, slide the sliding seat until it is in contact with the upper edge of the pile foundation again, and the difference between the readings recorded before and after is the settlement depth of the pile foundation. Using the above high-precision pile foundation settlement detection ruler, although it effectively solves the problem that due to the ground not being a horizontal surface, it is easy to have the situation that the "0" scales measured before and after are not at the same height, resulting in a large measurement error. However, when measuring the corresponding scale after the pile foundation settles, it is necessary to loosen the locking screw again, then slide the sliding seat to be in contact with the upper edge of the pile foundation and read the number. In this way, during the process of moving the sliding seat, the entire detection ruler may move, resulting in a change in the position of the sliding seat on the upper edge of the pile foundation after the sliding seat is in contact with the upper edge of the pile foundation again, thus affecting the detection accuracy. Moreover, it is not possible to directly compare the data before and after the pile foundation settlement. When the data recorded before the pile foundation settlement is incorrect, damaged or lost, it is very difficult to restore the pointer to the corresponding scale position before the pile foundation settlement, which will also affect the detection accuracy and even lead to rework. Content of the Utility Model

[0004] The utility model provides a pile foundation settlement amount detection device, which solves the problem that when measuring the data after the pile foundation settlement using the existing high-precision pile foundation settlement detection ruler, it is necessary to move the sliding seat again, and during the process of moving the sliding seat, the entire detection ruler may move, resulting in a change in the position of the sliding seat on the upper edge of the pile foundation after the sliding seat is in contact with the upper edge of the pile foundation again, thus affecting the detection accuracy.

[0005] To achieve the above object, the utility model provides a device for detecting the settlement amount of a pile foundation, which comprises a base, an observation scale and a caliper. The observation scale is vertically arranged and fixedly connected to the base.

[0006] The caliper comprises a main scale for measuring the value before the settlement of the pile foundation and a sub-scale for measuring the value after the settlement of the pile foundation.

[0007] Both the main scale and the sub-scale are perpendicular to the observation scale, and both the main scale and the sub-scale are slidably connected to the observation scale in the vertical direction.

[0008] The main scale and the sub-scale are flush with each other vertically and abut against each other front and back, and the main scale and the sub-scale are detachably and fixedly connected.

[0009] A fastening mechanism is provided at one end of the main scale that slides on the observation scale.

[0010] A plumb bob is provided at the lower edge of the sub-scale.

[0011] Preferably, scales are provided on both the front and back sides of the observation scale.

[0012] Preferably, a slide bar is provided on one side of the observation scale, and the slide bar is integrally formed with the observation scale.

[0013] Preferably, the main scale and the sub-scale are connected by bolts.

[0014] Preferably, a slider one is provided at one end of the main scale close to the observation scale.

[0015] A slide hole one is formed in the slider one, and the slider one slides on the slide bar through the slide hole one.

[0016] A pointer plate one is provided on the side of the slider one close to the observation scale.

[0017] Preferably, a push plate slides in the slide hole one in the front-back direction, and a fastening screw is rotatably provided on the side of the push plate away from the slide bar.

[0018] The fastening screw is threadedly connected to the front side wall of the slider one.

[0019] A rubber plate is provided on the side of the push plate close to the slide bar.

[0020] Preferably, a slider two is provided at one end of the sub-scale close to the observation scale.

[0021] A cavity is formed in the upper part of the slider two, and the top of the cavity is open.

[0022] A slide hole two is formed in the lower part of the slider two, and the slide hole two is communicated with the cavity.

[0023] Preferably, a first sliding groove is formed on the side wall of the cavity close to the observation scale;

[0024] A second sliding groove is formed on the front side wall of the upper part of the second slider;

[0025] A third sliding groove is formed on the side wall of the upper part of the second slider away from the observation scale;

[0026] A second pointer plate is arranged on the outer side surface of the side wall of the upper part of the second slider close to the observation scale;

[0027] The first slider slides vertically in the cavity;

[0028] The first pointer plate slides vertically in the first sliding groove;

[0029] The fastening screw rod slides vertically in the second sliding groove;

[0030] The main scale slides vertically in the third sliding groove;

[0031] The first pointer plate and the second pointer plate are staggered front and back, and the observation scale is located between the first pointer plate and the second pointer plate.

[0032] Preferably, the base includes a bottom plate, an adjusting plate and an adjusting and fixing mechanism capable of adjusting the levelness of the adjusting plate;

[0033] The bottom plate and the adjusting plate are connected by a plurality of the adjusting and fixing mechanisms;

[0034] A plurality of adjusting holes are formed in the adjusting plate.

[0035] Preferably, the adjusting and fixing mechanism includes a fixing cone and an adjusting screw rod;

[0036] The fixing cone is of a tubular structure, the adjusting screw rod passes through the adjusting hole, and the adjusting screw rod is threadedly connected in the fixing cone;

[0037] The diameter of the adjusting screw rod is smaller than the diameter of the adjusting hole;

[0038] A fixing nut and a limiting plate are arranged on the rod body of the adjusting screw rod, the fixing nut is threadedly connected with the adjusting screw rod, and the limiting plate is fixedly connected with the adjusting screw rod;

[0039] The fixing nut is located on the limiting plate, and the adjusting plate is located between the fixing nut and the limiting plate.

[0040] The utility model has the following beneficial effects:

[0041] 1. The detection device obtains the settlement amount of the pile foundation through the initial reading corresponding to the main scale and the final reading corresponding to the secondary scale after it slides down. When reading the reading corresponding to the scale at the pile top after the settlement of the pile foundation, there is no need to manually move the secondary scale, thus avoiding errors in the final reading caused by manually moving the secondary scale. Therefore, the detection device is easy to operate, measures accurately, the initial reading and the final reading are both intuitive, and it can effectively prevent the loss or damage of measurement data;

[0042] 2. The levelness of the adjusting plate can be adjusted by adjusting the fixing mechanism, thereby ensuring the verticality of the observation scale and reducing the measurement error of the settlement amount of the pile foundation;

[0043] 3. The aperture of the adjusting hole is larger than the rod diameter of the adjusting screw. In this way, when adjusting the levelness of the adjusting plate, the angle between the adjusting plate and the adjusting screw can change, which is conducive to leveling the adjusting plate and preventing jamming during the adjustment of the adjusting plate. Description of the Drawings

[0044] Figure 1 is the overall structural schematic diagram of a pile foundation settlement amount detection device described in the present utility model;

[0045] Figure 2 is the structural schematic diagram of a pile foundation settlement amount detection device described in the present utility model with a caliper given to you again;

[0046] Figure 3 is the structural schematic diagram of the first slider and the second slider in a pile foundation settlement amount detection device described in the present utility model;

[0047] Figure 4 is the connection schematic diagram between the first slider and the observation scale in a pile foundation settlement amount detection device described in the present utility model;

[0048] Figure 5 is the connection schematic diagram between the fastening screw and the push plate in a pile foundation settlement amount detection device described in the present utility model;

[0049] Figure 6 is the bottom structural schematic diagram of the second slider in a pile foundation settlement amount detection device described in the present utility model;

[0050] Figure 7 is the structural schematic diagram of the adjusting and fixing mechanism in a pile foundation settlement amount detection device described in the present utility model.

[0051] In the figure, 1 is the base; 11 is the bottom plate; 12 is the adjusting plate; 121 is the adjusting hole; 13 is the adjusting and fixing mechanism; 131 is the fixing cone; 132 is the adjusting screw; 133 is the fixing nut; 134 is the limiting plate; 14 is the spirit level; 2 is the observation ruler; 21 is the sliding rod; 22 is the first reinforcing plate; 23 is the second reinforcing plate; 3 is the caliper; 31 is the main scale; 311 is the first slider; 3111 is the first sliding hole; 312 is the first pointer plate; 313 is the fastening screw; 314 is the pushing plate; 315 is the rubber plate; 32 is the sub-scale; 321 is the second slider; 3211 is the cavity; 3212 is the first chute; 3213 is the second chute; 3214 is the third chute; 3215 is the second sliding hole; 322 is the second pointer plate; 33 is the bolt; 4 is the plumb bob. Detailed implementation mode

[0052] The following further elaborates on the present utility model in conjunction with the attached drawings and embodiments, enabling those skilled in the art to implement it with reference to the written description.

[0053] The present utility model provides a pile foundation settlement detection device, as Figure 1 shown, which includes a base 1, an observation ruler 2, and a caliper 3. The observation ruler 2 is vertically arranged and fixedly connected to the base 1. The caliper 3 includes a main scale 31 for measuring the value before the settlement of the pile foundation and a sub-scale 32 for measuring the value after the settlement of the pile foundation. Both the main scale 31 and the sub-scale 32 are perpendicular to the observation ruler 2, and both the main scale 31 and the sub-scale 32 are slidably connected to the observation ruler 2 in the vertical direction. The main scale 31 and the sub-scale 32 are flush with each other vertically and are in contact with each other front and back. The main scale 31 and the sub-scale 32 are detachably and fixedly connected. The end of the main scale 31 that slides on the observation ruler 2 is provided with a fastening mechanism, and a plumb bob 4 is provided at the lower edge of the sub-scale 32.

[0054] Scales are provided on both the front and rear sides of the observation ruler 2.

[0055] A sliding rod 21 is provided on one side of the observation ruler 2, and the sliding rod 21 is integrally formed with the observation ruler 2.

[0056] As Figure 1 shown, first reinforcing plates 22 are respectively provided on the left and right sides of the lower part of the observation ruler 2;

[0057] Second reinforcing plates 23 are respectively provided on the front and rear sides of the lower part of the observation ruler 2.

[0058] As Figure 2 shown, the main scale 31 and the sub-scale 32 are connected by a bolt 33.

[0059] As Figure 2 and Figure 3 shown, a first slider 311 is provided at the end of the main scale 31 close to the observation ruler 2. A first sliding hole 3111 is formed in the first slider 311, and the first slider 311 slides on the sliding rod 21 through the first sliding hole 3111.

[0060] As Figure 3 shown, a pointer plate one 312 is provided on the side of the slider one 311 close to the observation scale 2.

[0061] As Figure 4 shown, a push plate 314 slides in the first sliding hole 3111 in the front - rear direction. A fastening screw 313 is rotatably provided on the side of the push plate 314 away from the sliding rod 21.

[0062] The fastening screw 313 is threadedly connected to the front side wall of the slider one 311.

[0063] As Figure 4 and Figure 5 shown, a rubber plate 315 is provided on the side of the push plate 314 close to the sliding rod 21.

[0064] As Figure 3 and Figure 6 shown, one end of the secondary scale 32 close to the observation scale 2 is provided with a slider two 321. A cavity 3211 is formed inside the upper part of the slider two 321. The top of the cavity 3211 is open. A second sliding hole 3215 is formed in the lower part of the slider two 321. The second sliding hole 3215 communicates with the cavity 3211.

[0065] As Figure 3 and Figure 6 shown, a first sliding groove 3212 is formed on the side wall of the cavity 3211 close to the observation scale 2;

[0066] A second sliding groove 3213 is formed on the front side wall of the upper part of the slider two 321;

[0067] A third sliding groove 3214 is formed on the side wall of the upper part of the slider two 321 away from the observation scale 2;

[0068] A pointer plate two 322 is provided on the outer side surface of the side wall of the upper part of the slider two 321 close to the observation scale 2.

[0069] As Figure 2 and Figure 3 shown, the slider one 311 slides vertically in the cavity 3211;

[0070] The pointer plate one 312 slides vertically in the first sliding groove 3212;

[0071] The fastening screw 313 slides vertically in the second sliding groove 3213;

[0072] The main scale 31 slides vertically in the third sliding groove 3214;

[0073] The pointer plate one 312 and the pointer plate two 322 are staggered front - to - back, and the observation scale 2 is located between the pointer plate one 312 and the pointer plate two 322.

[0074] When the main scale 31 and the secondary scale 32 are not separated, the scales corresponding to the pointer board one 312 and the pointer board two 322 are the same.

[0075] Install the device beside the pile foundation, then loosen the fastening screw 313, so that the fastening screw 313 drives the push plate 314 and the rubber plate 315 to move away from the sliding rod 21. After the rubber plate 315 leaves the sliding rod 21, gently move the caliper 3 downward so that the lower edge of the caliper 3 abuts against the pile top. At this time, read the readings of the scales corresponding to the pointer board one 312 and the pointer board two 322. This reading is the initial reading. At this time, tighten the fastening screw 313 again so that the rubber plate 315 abuts against the side of the sliding rod 21 again to fix the main scale 31 and the sliding rod 21. Then unscrew the bolt 33 to release the locking between the main scale 31 and the secondary scale 32. When the pile foundation settles, the heavy hammer 4 will drive the secondary scale 32 to move downward, the slider two 321 will slide downward, the slider one 311 will slide upward relative to the slider two 321, the fastening screw 313 will slide upward relative to the slider two 321, and the pointer board two 322 will slide upward relative to the slider two 321. In this way, as the pile foundation settles, the slider one 311 and the slider two 321 will gradually separate, and a height difference will be generated between the main scale 31 and the secondary scale 32. After the pile foundation is stable, read the reading of the scale corresponding to the pointer board two 322 again. This reading is the final reading after the settlement of the pile foundation. In this way, the difference between the initial reading and the final reading is the settlement amount of the pile foundation. When reading the reading of the scale corresponding to the pile top after the settlement of the pile foundation, there is no need to manually move the secondary scale 32, which avoids errors in the final reading caused by manually moving the secondary scale 32. Therefore, this detection device is easy to operate, measures accurately, and both the initial reading and the final reading are relatively intuitive, which can effectively prevent the loss or damage of measurement data.

[0076] As Figure 1 and Figure 7 shown, the base 1 includes a bottom plate 11, an adjusting plate 12, and an adjusting and fixing mechanism 13 capable of adjusting the levelness of the adjusting plate 12. The bottom plate 11 and the adjusting plate 12 are connected by a plurality of adjusting and fixing mechanisms 13.

[0077] As Figure 7 shown, a plurality of adjusting holes 121 are provided on the adjusting plate 12.

[0078] As Figure 1 and Figure 7 shown, a spirit level 14 is provided on the upper surface of the adjusting plate 12.

[0079] The spirit level 14 can assist the adjusting and fixing mechanism 13 to level the adjusting plate 12.

[0080] As Figure 7 shown, the adjusting and fixing mechanism 13 includes a fixing cone 131 and an adjusting screw 132;

[0081] The fixed cone 131 is a tubular structure. The adjusting screw 132 passes through the adjusting hole 121, and the adjusting screw 132 is threadedly connected inside the fixed cone 131.

[0082] As Figure 7 shown, the diameter of the adjusting screw 132 is smaller than the diameter of the adjusting hole 121.

[0083] The aperture of the adjusting hole 121 is larger than the rod diameter of the adjusting screw 132. In this way, when adjusting the levelness of the adjusting plate 12, the angle between the adjusting plate 12 and the adjusting screw 132 can change, which is beneficial to leveling the adjusting plate 12 and preventing jamming during the process of adjusting the adjusting plate 12.

[0084] As Figure 7 shown, a fixing nut 133 and a limiting plate 134 are provided on the rod body of the adjusting screw 132. The fixing nut 133 is threadedly connected to the adjusting screw 132, and the limiting plate 134 is fixedly connected to the adjusting screw 132;

[0085] The fixing nut 133 is located on the limiting plate 134, and the adjusting plate 12 is located between the fixing nut 133 and the limiting plate 134.

[0086] With the present utility model, first fix the base plate 11 to the ground through the fixing cone 131, then place the adjusting plate 12 on the base plate 11, and align the lower end of the adjusting screw 132 with the screw hole at the upper end of the fixing cone 131. Subsequently, turn the adjusting screw 132, and the adjusting screw 132 drives the limiting plate 134 to move downward, and the adjusting plate 12 also moves downward accordingly. In this way, by turning multiple adjusting screws 132, multiple adjusting screws 132 can drive different parts of the adjusting plate 12 to move up and down. Then, in cooperation with the spirit level 14, the adjusting plate 12 can be adjusted to be horizontal. The aperture of the adjusting hole 121 is larger than the rod diameter of the adjusting screw 132. In this way, when adjusting the levelness of the adjusting plate 12, the angle between the adjusting plate 12 and the adjusting screw 132 can change, which is conducive to making the adjusting plate 12 horizontal and preventing jamming during the adjustment of the adjusting plate 12. After the adjusting plate 12 is adjusted to be horizontal, fix the adjusting plate 12 by tightening the fixing nut 133, so as to ensure that the observation ruler 2 is in a vertical state; then loosen the fastening screw 313 to make the fastening screw 313 drive the push plate 314 and the rubber plate 315 to move away from the sliding rod 21. After the rubber plate 315 leaves the sliding rod 21, move the caliper 3 downward to make the lower edge of the caliper 3 abut against the top of the pile. At this time, read the readings corresponding to the scales of the pointer plate one 312 and the pointer plate two 322. This reading is the initial reading. At this time, tighten the fastening screw 313 again to make the rubber plate 315 abut against the side of the sliding rod 21 again to fix the main scale 31 to the sliding rod 21. Then unscrew the bolt 33 to release the locking between the main scale 31 and the sub-scale 32. When the pile foundation settles, the heavy hammer 4 will drive the sub-scale 32 to move downward, the slider two 321 slides downward, the slider one 311 slides upward relative to the slider two 321, the fastening screw 313 slides upward relative to the slider two 321, and the pointer plate two 322 slides upward relative to the slider two 321. In this way, as the pile foundation settles, the slider one 311 and the slider two 321 will gradually separate, and a height difference will be generated between the main scale 31 and the sub-scale 32. After the pile foundation is stable, read the reading corresponding to the scale of the pointer plate two 322 again. This reading is the final reading after the settlement of the pile foundation. In this way, the difference between the initial reading and the final reading is the settlement amount of the pile foundation.

[0087] Although the embodiments of the present utility model have been disclosed as above, it is not limited to only the applications listed in the description and the embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present utility model is not limited to the specific details and the illustrations shown and described here.

Claims

1. Pile foundation settlement detection device, characterized in that, It includes a base (1), an observation scale (2) and a caliper (3). The observation scale (2) is vertically arranged and fixedly connected to the base (1). The caliper (3) includes a main scale (31) for measuring the value before the settlement of the pile foundation and a sub-scale (32) for measuring the value after the settlement of the pile foundation. Both the main scale (31) and the sub-scale (32) are perpendicular to the observation scale (2), and both the main scale (31) and the sub-scale (32) are slidably connected to the observation scale (2) in the vertical direction. The main scale (31) and the sub-scale (32) are flush with each other vertically and are in contact with each other front and back, and the main scale (31) and the sub-scale (32) are detachably fixedly connected. A fastening mechanism is provided at one end of the main scale (31) that slides on the observation scale (2). A plumb bob (4) is provided at the lower edge of the sub-scale (32).

2. The pile foundation settlement detection device according to claim 1, characterized in that, Scales are provided on both the front and back sides of the observation scale (2).

3. The pile foundation settlement detection device according to claim 2, characterized in that, A slide bar (21) is provided on one side of the observation scale (2), and the slide bar (21) is integrally formed with the observation scale (2).

4. The pile foundation settlement detection device according to claim 1, characterized in that, The main scale (31) and the sub-scale (32) are connected by bolts (33).

5. The pile foundation settlement detection device according to claim 3, wherein, One end of the main scale (31) close to the observation scale (2) is provided with a first slider (311). A first sliding hole (3111) is formed in the first slider (311), and the first slider (311) slides on the slide bar (21) through the first sliding hole (3111). A first pointer plate (312) is provided on the side of the first slider (311) close to the observation scale (2).

6. The pile foundation settlement detection device according to claim 5, wherein, A push plate (314) slides in the first sliding hole (3111) in the front-back direction. A fastening screw (313) is rotatably provided on the side of the push plate (314) away from the slide bar (21). The fastening screw (313) is threadedly connected to the front side wall of the first slider (311). A rubber plate (315) is provided on the side of the push plate (314) close to the slide bar (21).

7. The pile foundation settlement detection device according to claim 6, wherein, One end of the sub-scale (32) close to the observation scale (2) is provided with a second slider (321). A cavity (3211) is formed in the upper part of the second slider (321), and the top of the cavity (3211) is open. A second sliding hole (3215) is formed in the lower part of the second slider (321), and the second sliding hole (3215) communicates with the cavity (3211).

8. The pile foundation settlement detection device according to claim 7, wherein, A chute one (3212) is formed on the side wall of the cavity (3211) close to the observation scale (2); a chute two (3213) is formed on the front side wall of the upper part of the slider two (321); a chute three (3214) is formed on the side wall of the upper part of the slider two (321) away from the observation scale (2); a pointer plate two (322) is arranged on the outer side surface of the side wall of the upper part of the slider two (321) close to the observation scale (2); the slider one (311) slides vertically in the cavity (3211); the pointer plate one (312) slides vertically in the chute one (3212); the fastening screw (313) slides vertically in the chute two (3213); the main scale (31) slides vertically in the chute three (3214); the pointer plate one (312) and the pointer plate two (322) are staggered front and back, and the observation scale (2) is located between the pointer plate one (312) and the pointer plate two (322).

9. The pile foundation settlement detection device according to claim 1, wherein, The base (1) includes a bottom plate (11), an adjusting plate (12) and an adjusting and fixing mechanism (13) capable of adjusting the levelness of the adjusting plate (12); the bottom plate (11) and the adjusting plate (12) are connected by a plurality of the adjusting and fixing mechanisms (13); a plurality of adjusting holes (121) are formed on the adjusting plate (12).

10. The pile foundation settlement detection device according to claim 9, characterized in that, The adjusting and fixing mechanism (13) includes a fixing cone (131) and an adjusting screw (132); the fixing cone (131) is a tubular structure, the adjusting screw (132) passes through the adjusting hole (121), and the adjusting screw (132) is threadedly connected in the fixing cone (131); the diameter of the adjusting screw (132) is smaller than the diameter of the adjusting hole (121); a fixing nut (133) and a limiting plate (134) are arranged on the rod body of the adjusting screw (132), the fixing nut (133) is threadedly connected with the adjusting screw (132), and the limiting plate (134) is fixedly connected with the adjusting screw (132); the fixing nut (133) is located on the limiting plate (134), and the adjusting plate (12) is located between the fixing nut (133) and the limiting plate (134).

Images