CN217150386U - Device for measuring thickness of sediment at bottom of cast-in-place pile - Google Patents
Device for measuring thickness of sediment at bottom of cast-in-place pile Download PDFInfo
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- CN217150386U CN217150386U CN202220957516.5U CN202220957516U CN217150386U CN 217150386 U CN217150386 U CN 217150386U CN 202220957516 U CN202220957516 U CN 202220957516U CN 217150386 U CN217150386 U CN 217150386U
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Abstract
The utility model discloses a device for measuring the thickness of the sediment at the bottom of a cast-in-place pile, which comprises a measuring unit, wherein the measuring unit comprises a holding assembly and a measuring rod and is used for measuring the thickness of the sediment; at least two measuring rods are fixed at the lower part of the holding assembly at intervals, and at least two measuring rods are arranged. The utility model has the advantages that the sediment thickness can be objectively and accurately measured by measuring the sediment thickness by taking the average value after measuring the lengths of the bonding sediment attached to the four steel drill rods; the method can be suitable for the condition that the slag surface is uneven or has large particles, and can also be suitable for deeper pile foundations; and has the characteristics of simple structure, convenient operation and low cost.
Description
Technical Field
The utility model belongs to the technical field of bored concrete pile technique and specifically relates to a device for measuring bored concrete pile bottom sediment thickness is related to.
Background
The cast-in-place pile is drilled mechanically by a rotary excavator or a gyrator at present, the phenomenon of incomplete hole cleaning of the rotary excavator exists in the hole digging process, and sediment at the bottom of the pile can be caused by incomplete removal of sediment and hole collapse caused by the cyclic rotation of the gyrator. Concrete is poured before sediment is cleared, and partial sediment turns upwards due to the gravity of the concrete and is mixed into the concrete to influence the strength of the concrete. At present, the miniature pile is usually subjected to dry operation through a down-the-hole drill carriage, the diameter of the pile is not more than 350mm, the diameter of a formed hole is small, and a mud-free protective wall is generally adopted, so that pile bottom sediment is easily caused if cement paste cannot be poured quickly. Most of slag removal modes are high-pressure blowing or grouting, but the current method for detecting slag removal effect or measuring sediment thickness usually comprises the following steps:
the method comprises the following steps: the method for measuring the needle and the cake comprises the steps of measuring the thickness of the sediment through a combined device of a steel chisel and a floating disc, enabling the horizontal plane of the floating disc to be vertical to the steel chisel, only sliding upwards and not moving downwards, enabling the floating disc to be in contact with the sediment and prevented from sliding downwards in the measuring process, continuously measuring the steel chisel until the bottom of the sediment at the bottom of a pile is measured, and measuring the length of the steel chisel at the bottom of the floating disc to obtain the thickness of the sediment.
The disadvantages are as follows: the floating plate in the probe cake measuring method is determined based on the whole sediment surface, and when the sediment surface is uneven or has large particles, the sediment thickness is calculated to the maximum according to data, so that the sediment thickness cannot be actually reflected.
The second method comprises the following steps: the measuring method comprises the steps of placing a measuring hammer on the top surface of the sediment through different expression modes, recording data 1, continuously shaking the measuring hammer until the measuring hammer is placed at the bottom of the sediment, recording data 2, and comparing and calculating the thickness of the sediment.
The disadvantages are as follows: in the rope measuring method, the top surface of the sediment is determined according to different performances and hand strength when the measuring hammer is placed, and objective and inaccurate data are caused.
The third method comprises the following steps: and based on a Luoyang shovel, directly inserting the Luoyang shovel, and measuring the section length to determine the sediment thickness.
The disadvantages are as follows: adopt luoyang shovel, need the great hard soil end of partial of digging out of dynamics to ensure that the sediment can not drop, implement the degree of difficulty great to darker pile foundation.
The method four comprises the following steps: based on advanced instruments, including digital sensors, ultrasonic detectors, intelligent robots, etc.
The disadvantages are as follows: the cost of the advanced instrument is high, and the operation of professional personnel is required.
Disclosure of Invention
An object of the utility model is to provide a device for measuring bored concrete pile bottom sediment thickness, the thickness of sediment at the bottom of can the accurate measurement miniature bored concrete pile, and easy operation, it is with low costs to realize.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
a device for measuring bored concrete pile bottom sediment thickness, include
The measuring unit comprises a holding assembly and a measuring rod and is used for measuring the thickness of the sediment; the number of the measuring rods is at least two, and the measuring rods are fixed at the lower part of the holding assembly at intervals. The measuring rods are at least two, so that the accuracy of the measuring result can be improved.
Further, the holding assembly comprises a holding rod and a fixing piece, and the holding rod is fixed on the fixing piece; the measuring rod is fixed at the bottom of the fixing piece.
Furthermore, the holding rod is of a multi-section structure which is connected in sequence. Make the holding rod can extend to appointed length, improve the utility model discloses a practicality.
Further, adjacent said gripping bars are screwed together.
Further, the measuring device further comprises a protection piece, wherein the protection piece is screwed on the fixing piece, and the protection piece is used for protecting the measuring rod.
Further, the fixing piece is a round steel plate, and the protection piece is screwed on the round steel plate. Prevent measuring stick and pile foundation pore wall contact, influence measuring result.
Furthermore, the number of the measuring rods is four, and the measuring rods are uniformly fixed on the circular steel plate in a # -shape at intervals.
The utility model has the advantages that the sediment thickness can be objectively and accurately measured by measuring the sediment thickness by taking the average value after measuring the lengths of the bonding sediment attached to the four steel drill rods; the method can be suitable for the condition that the slag surface is uneven or has large particles, and can also be suitable for deeper pile foundations; and has the characteristics of simple structure, convenient operation and low cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the utility model in use.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in figures 1-2, the device for measuring the thickness of the sediment at the bottom of the cast-in-place pile of the utility model comprises
The measuring unit is used for measuring the thickness of the sediment and comprises a holding assembly and a measuring rod;
the holding assembly comprises a holding rod 1.1 and a fixing piece, and the fixing piece is a circular steel plate 1.2 and is provided with external threads; the lower part of the holding rod 1.1 is fixed on the circular steel plate 1.2, and the holding rod 1.1 and the circular steel plate 1.2 are screwed together for convenient disassembly; for convenience in use, the holding rods 1.1 adopt a sectional structure, and the adjacent holding rods 1.1 are screwed together through the sleeve 100; the measuring rods are 1.3 of steel rods, at least two (four rods are adopted by the utility model), and are welded at the bottom of the round steel plate 1.2 at intervals uniformly in a groined shape;
for preventing that drill rod 1.3 is influenced at the during operation, be provided with the protection piece in circular steel sheet 1.2 outside, the protection piece is circular protective sleeve 2.1, and the spiro union is on circular steel sheet 1.2 lateral surface for protection drill rod 1.3 touches the pile foundation pore wall, influences sediment measured data.
The working process of the utility model is as follows:
a plurality of holding rods 1.1 are screwed to a certain length through sleeves 100, and the length is determined according to the depth of the pile foundation. Before measuring pile foundation, uniformly coating liquid material capable of bonding sediment, such as cement paste (or paint, asphalt oil, cold bottom oil, etc.) on the surface of 1.3 of the steel chisel; after the adhesive material is coated, the protective sleeve 2.1 is screwed on the circular steel plate 1.2; then immediately be about to the utility model discloses insert the pile foundation and begin to measure sediment thickness, can't deepen until the pile foundation bottom.
Will the utility model discloses propose at the uniform velocity, get the lag barrel 2.1, measure four drill rod 1.3 and go up the length of adhering the sediment after, get the average value, be pile foundation sediment thickness promptly.
Claims (7)
1. The utility model provides a device for measuring sediment thickness at bottom of bored concrete pile, characterized by: comprises that
The measuring unit comprises a holding assembly and a measuring rod and is used for measuring the thickness of the sediment; the number of the measuring rods is at least two, and the measuring rods are fixed at the lower part of the holding assembly at intervals.
2. The apparatus of claim 1, wherein the apparatus is adapted to measure the thickness of the bottom sediment of the cast-in-place pile, and further comprises: the holding assembly comprises a holding rod and a fixing piece, and the holding rod is fixed on the fixing piece; the measuring rod is fixed at the bottom of the fixing piece.
3. The apparatus of claim 2, wherein the apparatus is adapted to measure the thickness of the sediment at the bottom of the cast-in-place pile, and further comprises: the holding rod is of a multi-section structure which is connected in sequence.
4. The apparatus of claim 3, wherein the apparatus is further characterized in that: the adjacent holding rods are screwed together.
5. The apparatus of claim 2, wherein the apparatus is adapted to measure the thickness of the sediment at the bottom of the cast-in-place pile, and further comprises: the measuring device also comprises a protection piece screwed on the fixing piece, and the protection piece is used for protecting the measuring rod.
6. The apparatus of claim 5, wherein the apparatus is further characterized in that: the fixing member is a circular steel plate, and the guard member is screwed to the circular steel plate.
7. The apparatus of claim 6, wherein the apparatus comprises: the number of the measuring rods is four, and the measuring rods are uniformly fixed on the round steel plate in a groined shape at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220957516.5U CN217150386U (en) | 2022-04-25 | 2022-04-25 | Device for measuring thickness of sediment at bottom of cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220957516.5U CN217150386U (en) | 2022-04-25 | 2022-04-25 | Device for measuring thickness of sediment at bottom of cast-in-place pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217150386U true CN217150386U (en) | 2022-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220957516.5U Active CN217150386U (en) | 2022-04-25 | 2022-04-25 | Device for measuring thickness of sediment at bottom of cast-in-place pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217150386U (en) |
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2022
- 2022-04-25 CN CN202220957516.5U patent/CN217150386U/en active Active
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