CN114543627A - Bridge pile foundation sediment thickness detection device and detection method - Google Patents

Abstract

The invention discloses a bridge pile foundation sediment thickness detection device and a detection method. This bridge pile foundation sediment thickness detection device includes: the rotating disc mechanism comprises a fixed part arranged at the bottom and a disc capable of rotating relative to the fixed part; the disc is provided with a detection hole; the flat bottom detection part comprises a sinking plate, and the sinking plate is arranged at the bottom of the flat bottom detection part; the sharp bottom detection part comprises a sinking cone which is arranged at the bottom of the sharp bottom detection part; and two graduated detection tubes, wherein one end of each graduated detection tube is connected with the flat bottom detection part and the pointed bottom detection part respectively, and the other end of each graduated detection tube penetrates through the detection hole during detection. The bridge pile foundation sediment thickness detection device and the detection method enable sediment detection to be more stable and accurate, and the bridge pile foundation sediment detection device is simple in structure, flexible and convenient to operate and worthy of popularization.

Description

Bridge pile foundation sediment thickness detection device and detection method

Technical Field

The invention relates to the technical field of engineering detection equipment, in particular to a bridge pile foundation sediment thickness detection device and a detection method.

Background

The cast-in-situ bored pile is a pile formed by forming a pile hole in foundation soil through mechanical drilling, steel pipe soil extrusion or manual excavation and the like on an engineering site, placing a reinforcement cage in the pile hole and pouring concrete into the pile hole.

The cast-in-situ bored pile is required to be applied in bridge construction, the thickness of sediment at the bottom of a hole needs to be detected in the construction process of the cast-in-situ bored pile, the detection method commonly used at present is a probe cake detection method, and the detection principle is as follows: firstly, a measuring pin is put down, the measured depth is taken as the depth of the bottom of the hole, then a measuring cake is put down, the measured depth is taken as the depth of the top surface of the sediment, and the difference between the two data is the thickness of the sediment. Because of its simplicity and high efficiency, this detection method is often used in practical construction.

However, in the existing 'measuring pin cake measuring method', a pull rope with scales is used for connecting a measuring pin and a measuring cake, and whether the measuring pin and the measuring cake reach the bottom of sediment is judged according to the hand feeling of a person; the pull rope is easy to wind and bend in the process of being laid down, so that the measurement data is unstable and reliable.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a bridge pile foundation sediment thickness detection device.

The technical scheme of the invention is as follows:

one object of the present invention is to provide a bridge pile foundation sediment thickness detection device, including:

the rotating disc mechanism comprises a fixed part arranged at the bottom and a disc capable of rotating relative to the fixed part; the disc is provided with a detection hole;

the flat bottom detection part comprises a sinking plate, and the sinking plate is arranged at the bottom of the flat bottom detection part;

the sharp bottom detection part comprises a sinking cone which is arranged at the bottom of the sharp bottom detection part;

and two graduated detection tubes, wherein one end of each graduated detection tube is connected with the flat bottom detection part and the pointed bottom detection part respectively, and the other end of each graduated detection tube penetrates through the detection hole during detection.

Further, the detection hole is a long hole formed in the radial direction from the center of the disc.

Furthermore, the detection tube with the scales comprises a plurality of hollow tubes with the same length, and two adjacent hollow tubes are connected with each other.

Furthermore, two adjacent hollow pipes are abutted and connected through a connecting piece, and the connecting piece is sleeved outside the abutted parts of the two hollow pipes.

Furthermore, a graduated scale is arranged on the disc along the length direction of the strip hole.

Furthermore, an angle scale used for positioning the rotation position of the disc is arranged on the fixing part along the circumferential direction.

Furthermore, the sinking plate and the sinking cone are made of metal with high density, or the sinking plate and the sinking cone are provided with a weight piece.

The invention also aims to provide a bridge pile foundation sediment thickness detection method, which uses the bridge pile foundation sediment thickness detection device as claimed, and comprises the following steps:

s1, pile hole depth detection:

s1.1, detecting the depth of a pile hole by using a sharp-bottom detection part;

s1.2, mounting a graduated detection tube and a sharp-bottom detection part, and penetrating the graduated detection tube through a detection hole in a disc;

s1.3, fixing a fixing part in the rotary disc mechanism on the ground around a pile hole through a screw, and installing a disc on the fixing part;

s1.4, adjusting the detection hole of the disc, and enabling the central line of the detection hole to correspond to the zero scale position of the angle scale on the fixing part;

s1.5, connecting a graduated detection tube with a sharp bottom detection part, putting down until the hole bottom, and lifting the sharp bottom detection part to freely fall again;

s1.6, reading scale data on a detection tube with scales, and entering the next step;

s1.7, adjusting the position of the detection tube with the scale in the length direction in the detection hole, recording the corresponding numerical value of the scale, moving the position of the detection tube with the scale in the detection hole, and returning to S1.5-S1.6;

s1.8, rotating the disc, adjusting to a position to be detected according to the angle scale, and returning to the step S1.5-S1.6;

repeating the step S1.5-S1.8 until all the detection points are detected, and averaging the scale data on the obtained detection tube with the scales to obtain the average hole depth; of course, the hole depth of each position can be detected independently;

s2, detecting the surface depth of the sediment:

s2.1, detecting the surface depth of the sediment by using a flat bottom detection part;

the rest steps are the same as the pile hole depth detection step; the details are not repeated here, and the surface depth of the sediment is obtained;

s3, subtracting the surface depth of the average sediment from the average hole depth to obtain the average sediment thickness; the depth of the surface of the sediment can be subtracted from the depth of the hole of the corresponding point, and the sediment thickness of each point is obtained.

The invention has the following beneficial effects:

according to the bridge pile foundation sediment thickness detection device, the rotary disc mechanism is arranged, so that the disc can rotate, the positions of the flat bottom detection part and the pointed bottom detection part can be accurately adjusted, the bridge pile foundation sediment thickness detection device can accurately detect different positions of a pile hole, and the obtained sediment thickness is more accurate; the disc is provided with a detection hole, and the detection hole is provided with a strip hole with a graduated scale which is arranged along the radial direction, so that the sediment thickness detection result is more stable and reliable; select for use scale detection tube to connect flat bottom detection portion, sharp bottom detection portion, compare the detection rope commonly used among the prior art, the scale detection tube is difficult for twining and is out of shape for the testing result is further reliable and stable.

Drawings

FIG. 1 is a schematic view of the depth of the inspection stud hole of the flat bottom inspection part according to one embodiment of the present invention.

Fig. 2 is a schematic view of the sediment depth detected by the sharp-bottom detecting portion according to an embodiment of the present invention.

FIG. 3 is a schematic top view of a rotating disc mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a flat bottom detection part according to an embodiment of the invention.

Fig. 5 is a schematic structural diagram of a bottom-of-tip detection portion according to an embodiment of the invention.

Fig. 6 is a partially enlarged schematic view at I in fig. 1.

In the figure, 100, a rotating disc mechanism; 110. a fixed part; 111. an angle scale; 120. a disc; 121. detecting holes; 122. a graduated scale; 200. a flat bottom detection part; 210. sinking the plate; 220. a first connection portion; 300. a sharp bottom detection section; 310. sinking a cone; 320. a second connecting portion; 400. a graduated detection tube; 410. a hollow tube; 420. a connecting member; 1. and (4) settling dregs.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present application, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but 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, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

To facilitate understanding of the present invention by those skilled in the art, a specific embodiment of the present invention will be described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, the present invention provides a bridge pile foundation sediment thickness detection device, including:

a rotating disk mechanism 100 including a fixed portion 110 provided at the bottom and a disk 120 rotatable with respect to the fixed portion 110; the disc 120 is provided with a detection hole 121;

a flat bottom detection part 200, wherein the flat bottom detection part 200 comprises a sinking plate 210, and the sinking plate 210 is arranged at the bottom of the flat bottom detection part 200;

a sharp bottom detection part 300, wherein the sharp bottom detection part 300 comprises a countersink 310, and the countersink 310 is arranged at the bottom of the sharp bottom detection part 300;

and two graduated detection tubes 400, wherein one end of each graduated detection tube 400 is respectively connected with the flat bottom detection part 200 and the pointed bottom detection part 300, and the other end of each graduated detection tube 400 penetrates through the detection hole 121 during detection.

As shown in fig. 1 to 3, in this embodiment, the rotating disk mechanism 100 is a structure in which the fixed portion 110 is connected by a bearing so that the disk 120 rotates. The disc 120 is coaxially disposed with the fixing portion 110. The fixing portion 110 is a circular ring structure, which is named as a first circular ring, and a mounting hole is formed in the surface of the first circular ring, and a bolt penetrates through the mounting hole to fix the circular ring on the ground at the top of the pile hole. The rotating disk mechanism 100 further includes a second circular ring, and the second circular ring is provided with a mounting hole, and passes through the mounting hole through a bolt to be fixedly connected with the disk 120.

The first circular ring and the second circular ring are rotatably connected through a bearing, and the bearing is fixedly arranged on the inner ring side of the first circular ring.

The structure of the rotating disk mechanism 100 is not limited to this, and the disk 120 may be rotated by a structure in which the fixing portion 110 is engaged and connected by gears, and the fixing portion 110 has a circular ring structure in which an inner ring side is provided in a tooth shape for engagement. The rotating disk mechanism 100 further includes a gear which is an external gear and fixed at the bottom of the disk 120 through a bolt, and the circular ring structure is engaged with the gear to drive the disk 120 to rotate. The structure of the rotating disk mechanism 100 may also be other known connecting structures, and is not limited to the two connecting manners in the embodiment.

Referring to the disk 120 shown in fig. 3, the disk 120 is provided with a detection hole 121, the detection hole 121 is a long hole which is opened from the center of the disk 120 in a radial direction, and the disk 120 is provided with a scale 122 along the length direction of the long hole. The scale 122 uses the center of the disc 120 as a scale starting point. In operation, the scale 122 is used to display the positions of the sharp-bottom detection unit 300 and the flat-bottom detection unit 200.

As shown in fig. 3, in order to better record the rotation stroke of the disk 120 relative to the fixing part 110, an angle scale 111 for displaying the rotation angle between the disk 120 and the fixing part 110 is provided on the top surface of the fixing part 110, and the angle scales 111 are distributed in a circle. During detection, sediment 1 at different positions of the bottom of the pile hole can be detected, the position corresponding to the sediment 1 can be accurately recorded, and the thickness of the sediment obtained finally is more accurate.

As shown in fig. 4, in this embodiment, the flat bottom detection part 200 includes a sinking plate 210 and a first connecting part 220 disposed on the top of the sinking plate 210, the first connecting part 220 may be a cylindrical tube with an internal threaded hole disposed therein, the cylindrical tube is fixed to the sinking plate 210 by welding, and in order to obtain a better detection effect, the sinking plate 210 is made of a metal with a higher density, or the sinking plate 210 plus a weight member. The added weight member may be embedded in the sinking plate 210, or may be fixed on the non-working surface of the sinking plate 210, and the working surface of the sinking plate 210 is the bottom surface. Before detection, the hollow tube 410 with the bottom end of the graduated detecting tube 400 is mounted together with the first connecting part 220.

In order to ensure that the sinking plate 210 is placed in the pile hole to ensure the level of the bottom surface, the first connecting part 220 is fixedly welded at the center of the top of the bottom plate.

As shown in fig. 5, in this embodiment, the pointed bottom detection portion 300 includes a countersink 310 and a second connection portion 320 disposed at the top of the countersink 310, and the second connection portion 320 may be a cylindrical tube having an internal threaded hole formed therein, and the cylindrical tube is fixed to the countersink 310 by welding, and in order to obtain a good detection effect, the countersink 310 is made of a metal with a relatively high density, or the countersink 310 is provided with a weight. The additional weight may be fixed to the top of the countersink 310, disposed between the cylindrical tube and the weight. Before detection, the hollow tube 410 with the bottom end of the graduated detecting tube 400 is mounted with the second connecting part 320.

In order to ensure that the countersink 310 is put into the pile hole to ensure that the tip of the cone is not inclined, the second connecting part 320 is fixedly welded at the center of the top of the countersink 310.

The graduated detecting tube 400 comprises a plurality of hollow tubes 410 with the same length, and two adjacent hollow tubes 410 are connected through a connecting piece 420. Use hollow tube 410, can avoid the resilience of the scale rope among the prior art and the winding problem for data when detecting are more accurate. The surface of the hollow tube 410 is provided with dimension scales.

In this embodiment, as shown in fig. 6, both ends of the hollow tube 410 are provided with external threads, the connecting member 420 is a sleeve, the sleeve is provided with an internal threaded hole, and the graduated detecting tube 400 is connected with the connecting member 420 by a threaded connection. Of course, other connection means are possible, such as a press connection; alternatively, the connector 420 may be omitted and the two hollow tubes 410 may be screwed together by providing internal and external threads at the ends thereof, which are all included in the scope of the present application.

The bridge pile foundation sediment thickness detection device is simple in structural design, flexible and convenient to operate, and particularly suitable for detection of workers during site construction. By arranging the rotating disc mechanism 100, the disc 120 can rotate, so that the positions of the flat bottom detection part 200 and the pointed bottom detection part 300 can be accurately adjusted, the bridge pile foundation sediment thickness detection device can accurately detect different positions of a pile hole, and the obtained sediment thickness is more accurate; the disc 120 is provided with a detection hole 121, and the detection hole 121 is provided with a strip hole with a graduated scale 122 which is arranged along the radial direction, so that the sediment thickness detection result is more stable and reliable; select for use the scale detection tube to connect flat bottom detection portion 200, sharp bottom detection portion 300, decompose the scale detection tube into the hollow tube 410 that the size is the same to connect adjacent hollow tube 410, compare the detection rope commonly used among the prior art, the scale detection tube is difficult for twining and is out of shape, makes the testing result further reliable and stable.

The detection method comprises the following steps:

s1, pile hole depth detection:

s1.1, detecting the depth of a pile hole by using a sharp bottom detection part 300;

s1.2, mounting the detection tube 400 with the scales and the sharp-bottom detection part 300, and penetrating through the detection hole 121 on the disc 120;

s1.3, fixing the fixing part 110 in the rotating disc mechanism 100 on the ground around the pile hole through a screw, and mounting the disc 120 on the fixing part 110;

s1.4, adjusting the detection hole 121 of the disc 120, so that the central line of the detection hole 121 corresponds to the zero scale position of the angle scale 111 on the fixing part 110;

s1.5, the detection tube 400 with the scales and the sharp bottom detection part 300 are put down until the hole bottom, and the sharp bottom detection part 300 is lifted and then falls freely again;

s1.6, reading scale data on the detection tube 400 with scales, and entering the next step;

s1.7, adjusting the position of the detection tube 400 with the scales in the length direction in the detection hole 121, recording the corresponding numerical value of the graduated scale 122, moving the position of the detection tube 400 with the scales in the detection hole 121, and returning to S1.5-S1.6;

s1.8, rotating the disc 120, adjusting to a position to be detected according to the angle scale 111, and returning to the steps S1.5-S1.6;

repeating the step S1.5-S1.8 until all the detection points are detected, and averaging the scale data on the detection tube 400 with the scales, namely the average hole depth; of course the hole depth can be detected for each location separately.

S2, detecting the surface depth of the sediment:

s2.1, detecting the surface depth of the sediments by using a flat bottom detection part 200;

the rest steps are the same as the pile hole depth detection step; the depth of the sediment surface is obtained without further description.

S3, subtracting the surface depth of the average sediment from the average hole depth to obtain the average sediment thickness; the depth of the surface of the sediment can be subtracted from the depth of the hole of the corresponding point, and the sediment thickness of each point is obtained.

In the application, the depth detection of the pile hole and the depth detection of the surface of the sediment can be carried out simultaneously, namely, the pointed bottom detection part 300 and the flat bottom detection part 200 which are respectively connected with the detection tube 400 with scales are inserted into the detection hole 121 on the disc 120, and the rest steps are the same as the pile hole depth detection step; it is not repeated here, and the depth of the pile hole and the depth of the sediment surface can be obtained respectively. And recording the data of different positions, and subtracting the data of the same position to obtain the sediment thickness of the same position.

The sediment thickness detection device of this application, the sediment thickness of different positions department under the measurement stake hole that can be more convenient, accurate more accords with actual construction needs.

The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a bridge pile foundation sediment thickness detection device which characterized in that includes:

a rotating disc mechanism (100) comprising a fixed part (110) arranged at the bottom and a disc (120) rotatable relative to the fixed part (110); a detection hole (121) is formed in the disc (120);

a flat bottom detection part (200), wherein the flat bottom detection part (200) comprises a sinking plate (210), and the sinking plate (210) is arranged at the bottom of the flat bottom detection part (200);

a sharp bottom detection part (300), wherein the sharp bottom detection part (300) comprises a sunken cone (310), and the sunken cone (310) is arranged at the bottom of the sharp bottom detection part (300);

and two detection tubes (400) with scales, wherein one end of each detection tube (400) with scales is respectively connected with the flat bottom detection part (200) and the pointed bottom detection part (300), and the other end of each detection tube (400) with scales penetrates through the detection hole (121) during detection.

2. The bridge pile foundation sediment thickness detection device of claim 1, characterized in that: the detection hole (121) is a long hole formed in the radial direction from the center of the disc (120).

3. The bridge pile foundation sediment thickness detection device of claim 1, characterized in that: the detection tube (400) with the scales comprises a plurality of hollow tubes (410) with the same length, and two adjacent hollow tubes (410) are connected with each other.

4. The bridge pile foundation sediment thickness detection device of claim 3, characterized in that: two adjacent hollow tubes (410) are abutted and connected through a connecting piece (420), and the connecting piece (420) is sleeved outside the abutted part of the two hollow tubes (410).

5. The bridge pile foundation sediment thickness detection device of claim 2, characterized in that: and a graduated scale (122) is arranged on the disc (120) along the length direction of the strip hole.

6. The bridge pile foundation sediment thickness detection device of claim 1, characterized in that: an angle scale (111) used for positioning the rotation position of the disc (120) is arranged on the fixing part (110) along the circumferential direction.

7. The bridge pile foundation sediment thickness detection device of claim 1, characterized in that: the sinking plate (210) and the sinking cone (310) are made of metal with high density, or the sinking plate (210) and the sinking cone (310) are added with a weight.

8. A bridge pile foundation sediment thickness detection method is the bridge pile foundation sediment thickness detection device according to any one of claims 1-7, and is characterized by comprising the following steps:

s1, pile hole depth detection:

s1.1, detecting the depth of a pile hole by using a sharp-bottom detection part (300);

s1.2, mounting a detection tube (400) with scales and a sharp-bottom detection part (300) and penetrating through a detection hole (121) on a disc (120);

s1.3, fixing a fixing part (110) in the rotating disc mechanism (100) on the ground around a pile hole through a screw, and installing a disc (120) on the fixing part (110);

s1.4, adjusting a detection hole (121) of the disc (120), and enabling the central line of the detection hole (121) to correspond to the zero scale position of the angle scale (111) on the fixing part (110);

s1.5, connecting a pointed bottom detection part (300) with the graduated detection tube (400) and putting down until the hole bottom, and lifting the pointed bottom detection part (300) and then freely falling again;

s1.6, reading scale data on a detection tube (400) with scales, and entering the next step;

s1.7, adjusting the position of the detection tube (400) with the scale in the length direction in the detection hole (121), recording the corresponding numerical value of the graduated scale (122), moving the position of the detection tube (400) with the scale in the detection hole (121), and returning to S1.5-S1.6;

s1.8, rotating the disc (120), adjusting to a position to be detected according to the angle scale (111), and returning to the steps S1.5-S1.6;

repeating the step S1.5-S1.8 until all the detection points are detected, and averaging the scale data on the scale detection tube (400) with the scale, namely the average hole depth; of course, the hole depth of each position can be detected independently;

s2, detecting the surface depth of the sediment:

s2.1, detecting the surface depth of the sediment by using a flat bottom detection part (200);

the rest steps are the same as the pile hole depth detection step; the details are not repeated here, and the surface depth of the sediment is obtained;

s3, subtracting the surface depth of the average sediment from the average hole depth to obtain the average sediment thickness; the depth of the surface of the sediment can be subtracted from the depth of the hole of the corresponding point, and the sediment thickness of each point is obtained.

Images