CN111877414A - Pile foundation quality detection device and detection method thereof - Google Patents
Pile foundation quality detection device and detection method thereof Download PDFInfo
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- CN111877414A CN111877414A CN202010590020.4A CN202010590020A CN111877414A CN 111877414 A CN111877414 A CN 111877414A CN 202010590020 A CN202010590020 A CN 202010590020A CN 111877414 A CN111877414 A CN 111877414A
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- pile foundation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a pile foundation quality detection device and a detection method thereof, relating to the field of pile foundation quality detection, and the technical scheme is as follows: the inside hollow structure that is of stock, the quantity of stock is four, four the stock uses the jack to distribute as central symmetry, the one end that bears the frame is kept away from to the stock is equipped with the supporting seat, the slip slot hole along stock length direction is seted up to the stock outer wall, wear to be equipped with the support column of sliding connection on slip slot hole pore wall in the stock, set up the through-hole that supplies the support column to wear out on the supporting seat, the one end that the through-hole was passed to the support column is connected with the pole of inserting ground, the one end of pole of inserting ground is equipped with inserts ground most advanced, the supporting seat outer wall articulates there is a plurality of support covers of contradicting on the pole outer wall of inserting ground, the support cover inner wall connection have with.
Description
Technical Field
The invention relates to the field of pile foundation quality detection, in particular to a pile foundation quality detection device and a pile foundation quality detection method.
Background
The static load test of pile foundation is a technology for detecting bearing capacity of pile foundation in engineering, and in the aspect of determining ultimate bearing capacity of single pile, it is the most accurate and reliable test method at present, and is used for judging that some dynamic load test method is mature or not, and all the tests are based on the contrast error of static load test result, so that the static load test of single pile is placed in the primary position according to the design and treatment standard of every foundation, in the static load test, the load acted on the pile is generally provided by counterforce device, the easy-to-use degree of counterforce device directly influences the test process and result, and the commonly used pile-loading counterforce device and anchor pile counterforce device.
The Chinese patent with the granted publication number of CN107447795B discloses a pile foundation detection device and a detection method, and the device comprises a jack, a bearing frame, a self-drilling type anchor rod, an anchor rod fixing machine and a pile foundation settlement meter, wherein the self-drilling type anchor rod is drilled into the ground by a drilling machine, the bearing frame is fixedly connected with the self-drilling type anchor rod, the outer wall of the self-drilling type anchor rod is provided with a spiral structure, the anchor rod fixing machine comprises a refrigerating device, the refrigerating device is used for freezing a soil layer around the self-drilling type anchor rod, a jack substrate is arranged above a test pile, the top end of the jack is arranged below the bearing frame, and the pile foundation settlement meter is used for measuring the subsidence data of the test pile; and a U-shaped refrigerant liquid channel is arranged in the self-drilling anchor rod.
However, in the above structure, the outer surface of the anchor rod is provided with the spiral structure, and the anchor rod is prevented from moving axially only by virtue of the friction force between the anchor rod and the soil, so that the anchor rod is easy to be pulled out due to the toppling of trees, and the connection strength between the anchor rod and the soil is insufficient.
Disclosure of Invention
The invention aims to provide a pile foundation quality detection device and a detection method thereof, which can improve the connection strength of an anchor rod and soil.
The technical purpose of the invention is realized by the following technical scheme: a pile foundation quality detection device and a detection method thereof comprise anchor rods, jacks and a bearing frame, wherein the jacks are vertically arranged, the lower ends of the jacks are used for abutting against the upper ends of pile foundations, the upper ends of the jacks are supported on the bearing frame, the bearing frame is connected with the anchor rods, the anchor rods stretch into the ground, the interior of each anchor rod is of a hollow structure, the number of the anchor rods is four, the four anchor rods are symmetrically distributed by taking the jacks as centers, one ends of the anchor rods, far away from the bearing frame, are provided with supporting seats, the outer walls of the anchor rods are provided with sliding long holes along the length direction of the anchor rods, supporting columns are connected onto the wall of the sliding long holes in a penetrating mode, the supporting seats are provided with through holes for the supporting columns to penetrate out, one ends of the supporting columns, penetrating through the through holes are connected with ground inserting rods, one ends of the ground inserting rods are provided, the inner wall of the supporting cover is connected with a moving piece for opening or closing the supporting cover.
Through adopting above-mentioned technical scheme, the operator will insert ground point and insert in soil, through the moving member, open each support cover, increase the area of contact on support cover and ground for the stock exists steadily in ground, promotes the joint strength of stock and earth.
Preferably, the moving member includes a plurality of connecting rods, each connecting rod one end articulates respectively on each supports the cover, and the other end all articulates on inserting ground pole outer wall, outside support column one end stretched out the slip slot hole wall, the support column was served the screw thread and is worn to be equipped with the regulation pole stretching out the slip slot hole wall, adjust pole one end and rotate to connect on the supporting seat, and the other end passes the support column.
Through adopting above-mentioned technical scheme, the operator rotates and adjusts pole one end, makes the support column move towards ground direction in the slot hole that slides, and the support column drives and inserts the ground pole and move towards ground direction, and at this moment, each supports the cover and opens, and the increase supports the area of contact on cover and ground for the stock exists in ground, convenient operation steadily.
Preferably, the adjusting rod is provided with a rotating knob at one end penetrating through the supporting column.
By adopting the technical scheme, an operator can conveniently rotate the adjusting rod.
Preferably, the outer wall of the support housing facing away from the ground engaging tip is provided with a taper.
Through adopting above-mentioned technical scheme, promote the joint strength who supports cover and earth for the stock exists steadily in the ground.
The invention aims to provide a pile foundation quality detection method which can improve the connection strength of an anchor rod and soil.
The above object of the present invention is achieved by the following technical solutions: a detection method of a pile foundation quality detection device comprises the following steps: s1: four anchor rods with hollow structures are driven into the periphery of the pile foundation; s2: inserting the ground inserting tip of the anchor rod into the soil layer around the anchor rod; s3: the jack is installed at the top of the pile foundation and is vertically arranged, the bearing frame is arranged at the upper end of the jack and is fixedly connected with the anchor rod, the bearing frame is jacked up by the jack, and measurement is kept after the measured pressure is reached.
Preferably, the method further comprises the step S4 being provided after the step S3, S4: and pouring concrete mortar into the position where the anchor rod is taken out.
Through adopting above-mentioned technical scheme, pour into concrete mortar in the position that the stock was taken out, make the concrete mortar stay the space on the soil layer after taking out the stock and fill, avoid the stock to the destruction of soil layer.
In conclusion, the invention achieves the following beneficial effects: first, through the moving member, open each support cover, the area of contact on increase support cover and ground for the stock exists steadily in ground, promotes the joint strength of stock and earth.
The second makes things convenient for the operator to rotate the regulation pole, and the support column drives and inserts the ground pole and remove towards ground direction, and at this moment, each supports the cover and opens, and the increase supports the area of contact on cover and ground for the stock exists steadily in ground.
And thirdly, concrete mortar is poured into the position where the anchor rod is taken out, so that the concrete mortar fills the gap left on the soil layer after the anchor rod is taken out, and the anchor rod is prevented from damaging the soil layer.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic structural diagram of a through hole of an adjusting lever according to the present embodiment;
fig. 3 is a schematic structural diagram for embodying the ground inserting rod and the ground inserting tip in the present embodiment.
In the figure: 1. an anchor rod; 2. a jack; 3. a carrier; 4. a pile foundation; 5. a supporting seat; 6. a slide long hole; 7. a support pillar; 8. a through hole; 9. a ground inserting rod; 10. a ground insertion tip; 11. a support housing; 12. a connecting rod; 13. adjusting a rod; 15. rotating a knob; 16. a tapered portion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples
The utility model provides a pile foundation quality testing device, as figure 1, includes stock 1, jack 2 and bears frame 3, the vertical setting of jack 2, the lower extreme of jack 2 is used for the butt in the upper end of pile foundation 4, the upper end of jack 2 supports on bearing frame 3, bears frame 3 and be connected with stock 1, stock 1 stretches into underground, above-mentioned structure is unanimous with the structure that chinese patent publication is CN 107447795B.
Referring to fig. 1-3, the interior of the anchor rod 1 is a hollow structure, the number of the anchor rod 1 is four, four anchor rods 1 are symmetrically distributed with a jack 2 as a center, a supporting seat 5 is arranged at one end of the anchor rod 1 away from the bearing frame 3, a sliding long hole 6 along the length direction of the anchor rod 1 is arranged on the outer wall of the anchor rod 1, a supporting column 7 slidably connected to the wall of the sliding long hole 6 is arranged in the anchor rod 1, a through hole 8 for the supporting column 7 to penetrate out is arranged on the supporting seat 5, an inserting rod 9 is connected to one end of the supporting column 7 penetrating through the through hole 8, an inserting tip 10 is arranged at one end of the inserting rod 9, a plurality of supporting covers 11 abutting against the outer wall of the inserting rod 9 are hinged to the outer wall of the supporting seat 5, a moving member for opening or closing the supporting covers 11 is connected to the inner wall of the supporting covers 11, an, so that the anchor rod 1 stably exists in the ground and the connection strength of the anchor rod 1 with the soil is improved.
As shown in fig. 1-3, the moving member includes a plurality of connecting rods 12, each connecting rod 12 one end articulates respectively on each support cover 11, the other end all articulates on ground pole 9 outer wall, support column 7 one end is stretched out outside the slide slot hole 6 pore wall, support column 7 is served outside stretching out slide slot hole 6 pore wall and is served the screw thread and wear to be equipped with regulation pole 13, it connects on supporting seat 5 to adjust pole 13 one end to rotate, the other end passes support column 7, adjust pole 13 and serve and be equipped with the rotation at the one end of passing support column 7, the operator rotates and adjusts pole 13 one end, make support column 7 move towards the ground direction in slide slot hole 6, support column 7 drives ground pole 9 and moves towards the ground direction, at this moment, each support cover 11 opens, increase the area of contact of support cover 11 and ground, make.
As shown in fig. 2, in order to improve the connection strength of the support cap 11 with the soil, the outer wall of the support cap 11 facing away from the earth insertion tip 10 is provided with a tapered portion 16, so that the anchor rod 1 stably exists in the ground.
A detection method of a pile foundation 4 quality detection device, as shown in figures 1-3, comprises the following steps: s1: four anchor rods 1 with hollow structures are driven into the periphery of the pile foundation 4; s2: inserting the ground insertion tip 10 of the anchor rod 1 into the earth layer around the anchor rod 1; s3: jack 2 is installed at the top of pile foundation 4, and jack 2 is vertical to be set up, and jack 2' S upper end sets up bears frame 3, with bear frame 3 and stock 1 fixed connection, uses jack 2 to jack up bear frame 3, keeps measuring after reaching the measuring pressure, still includes step S4 setting after step S3, S4: concrete mortar is poured into the position where the anchor rod 1 is taken out, so that the concrete mortar fills the gap left on the soil layer after the anchor rod 1 is taken out, and the damage of the anchor rod 1 to the soil layer is avoided.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (6)
1. The utility model provides a pile foundation quality testing device, includes stock (1), jack (2) and bears frame (3), jack (2) vertical setting, the lower extreme of jack (2) is used for the butt in the upper end of pile foundation (4), the upper end of jack (2) is supported on bearing frame (3), bear frame (3) and be connected with stock (1), stock (1) stretches into the underground, its characterized in that, stock (1) inside is hollow structure, the quantity of stock (1) is four, four stock (1) uses jack (2) to be central symmetric distribution, the one end that stock (1) kept away from (3) is equipped with supporting seat (5), stock (1) outer wall sets up along stock (1) length direction's slip slot hole (6), wear to be equipped with support column (7) of sliding connection on slip slot hole (6) in stock (1), offer through-hole (8) that confession support column (7) were worn out on supporting seat (5), the one end that support column (7) passed through-hole (8) is connected with inserts ground pole (9), the one end of inserting ground pole (9) is equipped with inserts ground pointed end (10), supporting seat (5) outer wall articulates there are a plurality of support covers (11) of contradicting on inserting ground pole (9) outer wall, support cover (11) inner wall be connected with support cover (11) open or closed moving member.
2. The pile foundation quality detection device of claim 1, wherein: the moving member includes a plurality of connecting rods (12), each connecting rod (12) one end articulates respectively on each supports cover (11), and the other end all articulates on inserting ground pole (9) outer wall, outside support column (7) one end stretched out slip slot hole (6) pore wall, support column (7) were worn to be equipped with in the one of stretching out outside slip slot hole (6) pore wall and are adjusted pole (13) by the screw thread, adjust pole (13) one end and rotate to connect on supporting seat (5), and the other end passes support column (7).
3. The pile foundation quality detection device of claim 2, wherein: one end of the adjusting rod (13) penetrating through the supporting column (7) is provided with a rotating knob (15).
4. The pile foundation quality detection device and the detection method thereof according to claim 1, wherein: the outer wall of the support cover (11) back to the ground insertion tip (10) is provided with a conical part (16).
5. A detection method of a pile foundation quality detection device is characterized by comprising the following steps: the method comprises the following steps:
s1: four anchor rods (1) with hollow structures are driven into the periphery of the pile foundation (4);
s2: inserting the ground inserting tip (10) of the anchor rod (1) into the soil layer around the anchor rod (1);
s3: at the top installation jack (2) of pile foundation (4), jack (2) vertical setting, the upper end setting of jack (2) bears frame (3), will bear frame (3) and stock (1) fixed connection, uses jack (2) to bear frame (3) jack-up, keeps measuring after reaching measured pressure.
6. The pile foundation quality detection device and the detection method thereof according to claim 5, wherein: further comprising step S4 is provided after step S3, S4: and pouring concrete mortar into the position where the anchor rod (1) is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010590020.4A CN111877414A (en) | 2020-06-24 | 2020-06-24 | Pile foundation quality detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010590020.4A CN111877414A (en) | 2020-06-24 | 2020-06-24 | Pile foundation quality detection device and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111877414A true CN111877414A (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010590020.4A Withdrawn CN111877414A (en) | 2020-06-24 | 2020-06-24 | Pile foundation quality detection device and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111877414A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210270685A1 (en) * | 2021-04-28 | 2021-09-02 | Shenzhen University | Optical fiber sensing monitoring device for soil settlement and settlement amount measurement method |
| CN115125982A (en) * | 2022-08-02 | 2022-09-30 | 寿光市房泰建筑安装有限公司 | Biogas soil layer pile foundation accessory |
-
2020
- 2020-06-24 CN CN202010590020.4A patent/CN111877414A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210270685A1 (en) * | 2021-04-28 | 2021-09-02 | Shenzhen University | Optical fiber sensing monitoring device for soil settlement and settlement amount measurement method |
| CN115125982A (en) * | 2022-08-02 | 2022-09-30 | 寿光市房泰建筑安装有限公司 | Biogas soil layer pile foundation accessory |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201103 |
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| WW01 | Invention patent application withdrawn after publication |