CN205475364U - A loading device for pile foundation axial bearing capacity detecting - Google Patents
A loading device for pile foundation axial bearing capacity detecting Download PDFInfo
- Publication number
- CN205475364U CN205475364U CN201620044927.XU CN201620044927U CN205475364U CN 205475364 U CN205475364 U CN 205475364U CN 201620044927 U CN201620044927 U CN 201620044927U CN 205475364 U CN205475364 U CN 205475364U
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- CN
- China
- Prior art keywords
- base
- pile foundation
- bearing capacity
- axial bearing
- charger
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a pile foundation detection field, in particular to a loading device for pile foundation axial bearing capacity detecting, including setting up at the base at pile foundation top that awaits measuring, base and await measuring and be equipped with pressure sensor between the pile foundation top surface, the base top is equipped with a cylinder, open side down that the back -off forms airtight cavity on the base for the cylinder, the cylinder top is equipped with balancing weight, its characterized in that: interior high -efficient pressure boost agent and the non -combustible non -sparking liquid of packing of airtight cavity that forms between cylinder and the base, be equipped with the trigger device who is used for arousing high -efficient pressure boost agent in the cylinder, trigger device is including being used for impacting the firing pin of high -efficient pressure boost agent. High -efficient pressure boost agent arouses the high -pressure gas of back release to promote the ascending acceleration of ballast can reach 20 times of acceleration of gravity, and the stroke of dosage, cylinder and the base of the size of loading effort, the size of operational time accessible adjustment cylinder, pressure boost agent is controlled, detects fastly, and the loading is efficient, and is with low costs.
Description
Technical field
This utility model relates to pile measurement field, particularly to one for pile foundation axial bearing capacity
The charger of detection.
Background technology
Pile foundation is the supporting member being delivered in Rock soil Foundation by superstructure load, to engineering structure
Safety play vital effect.For guaranteeing engineering safety, pile foundation construction completes generally need to enter
Row loading test is to determine whether its bearing capacity meets design requirement, the loading method master of loading test
Ballast method to be had, anchored pile-testing method and anchoring pile ballast combination method, use above method on pile foundation top during test
Portion is further applied load, and surveys every grade and loads and pile head settlement amount, closes with pile head settlement by analyzing load
It is curve, determines the size of bearing capacity of pile foundation.Owing to ballast method needs hundreds of ton even to go up kiloton
Load material source meets the requirement of loading capacity, and anchored pile-testing method need to arrange many anchoring piles and the upper kiloton of carrying
Reaction beam, the loading system of these traditional methods is set up, load stockpile is put and the needs such as transport
Expend substantial amounts of man power and material, and easily limited with on-the-spot test site condition by loading tonnage
System, test period is long, and testing expenses are expensive, has a strong impact on engineering construction progress, increases cost of erection
With.
Utility model content
The purpose of this utility model is to provide a kind of adding and carry for the detection of pile foundation axial bearing capacity
Put, improve detection efficiency, reduce testing cost.
For achieving the above object, this utility model provides techniques below scheme: a kind of for pile foundation
The charger of axial bearing capacity detection, including being arranged on the base at pile foundation top to be measured, the described end
Being provided with pressure transducer between seat and pile foundation end face to be measured, described base is arranged over a cylinder barrel, institute
Stating cylinder barrel Open Side Down and tip upside down on formation closed cavity on base, described cylinder barrel is arranged over counterweight
Block, it is characterised in that: fill out in the closed cavity formed between described cylinder barrel and base and put high-efficient pressurizing
Agent, and pour into the liquid not fired, is provided with in described cylinder barrel and excites dress for excite high-efficient pressurizing agent
Putting, described excitation apparatus includes the striker for clashing into high-efficient pressurizing agent.
Of the present utility model have the technical effect that charger is made up of several parts, it is simple to transport,
Assembly and dismounting, the gases at high pressure that high-efficient pressurizing agent discharges after exciting promote ballast acceleration upwards
Can reach 20 times of acceleration of gravity, the loading size of active force, action time can pass through to adjust
The size of cylinder barrel, the dosage of pressor, cylinder barrel are controlled with the stroke of base, and detection speed is fast,
Loading efficiency is high, low cost.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model；
Fig. 2 is cylinder structure schematic diagram of the present utility model；
Fig. 3 is of the present utility model to excite tubular construction schematic diagram.
Detailed description of the invention
As shown in Figure 1, 2, a kind of charger for the detection of pile foundation axial bearing capacity, including
It is arranged on the base 10 at pile foundation a top to be measured, between described base 10 and pile foundation a end face to be measured
Being provided with pressure transducer 11, described base 10 is arranged over a cylinder barrel 12, and described cylinder barrel 12 is opened
Mouth tips upside down on downwards formation closed cavity on base 10, and described cylinder barrel 12 is arranged over balancing weight,
Fill out in the closed cavity formed between described cylinder barrel 12 and base 10 and put high-efficient pressurizing agent 2, described
The excitation apparatus 13 for exciting high-efficient pressurizing agent 2, described excitation apparatus 13 it is provided with in cylinder barrel 12
Including the striker 131 for clashing into high-efficient pressurizing agent 2.High-efficient pressurizing agent 2 is made up of three parts,
Multi-polyester tubular container, filler and trigger head, filler is 70% nitrocellulose and 30% oxidant
Mixture.The trigger head of high-efficient pressurizing agent excites under high pressure effect, and filler mixture generates a large amount of
Innocuous gas, Main Ingredients and Appearance is nitrogen, carbon dioxide and steam.
As shown in Figure 2,3, described excitation apparatus 13 also includes exciting pipe 132, described in excite pipe
132 tubular containers 1 including closed at both ends, are also filled with high-efficient pressurizing agent 2 in tubular container 1,
One end of tubular container 1 is provided with and the impact force of striker 131 can be transferred to tubular container 1 inside
Trigger head 3.
Preferably, as in figure 2 it is shown, the high-efficient pressurizing agent 2 in described closed cavity is filled in again many
In individual supercharging bullet 30, the structure of described supercharging bullet 30 is identical with the described structure exciting pipe 132.
Further, each supercharging bullet 30 is deposited in described closed cavity, pours in closed cavity
The liquid not fired, for filling the space between each supercharging bullet 30, and as high-efficient pressurizing agent 2
Pressure propagation medium after exciting, improves and loads effect.
Preferably, described striker 131 is remotely controlled by electronic trigger.
Further, as it is shown in figure 1, described balancing weight includes ballast base 14, saddle weight
15 and lead 16, ballast base 14 is affixed with cylinder barrel 12 top, and lead 16 is in vertical
Direction arrange and its lower end be fixed on ballast base 14, saddle weight 15 be provided centrally with through hole
Passing through for lead 16, the periphery of lead 16 is provided with screw thread and lead 16 away from ballast
One end of base 14 is provided with stop nut 17, and stop nut 17 is by the bottom of saddle weight 15 and ballast
14 are fixed together.
Further, device also includes the support mechanism 20 for helping balancing weight, described support
Mechanism 20 fixes on the ground by supporting base 22, supports base 22 and includes and help mechanism
Supporting leg 23 below the 20 fixing bracing frames connected and bracing frame, the height adjustable of supporting leg 23,
Described support mechanism 40 is spliced the most section by section by multiple guiding truss, described counterweight
Block is positioned at the passage in each guiding truss besieged city.
Further, be provided with inside described each truss unimpeded when can make to move upward on balancing weight,
The detent mechanism 21 of non-return when moving downward.One-way braking means: the thorn wheel that similar vehicles is slowed down is dialled
Fork, does not affect the rising of counterweight, and after counterweight rises above brake position, brake is to leading truck
Interior automatic spring, forms the step stoping counterweight to fall after rise.For avoiding bigger falling impulsive force,
Top counterweight rises arrival summit, just falls smaller height after rise, and just braking, so impacts
Little.
Charger of the present utility model is made up of several parts, it is simple to transport, assembled and dismounting,
The gases at high pressure that high-efficient pressurizing agent discharges after exciting promote ballast acceleration upwards to can reach gravity
20 times of acceleration, load the size of active force, action time can by adjust cylinder barrel size,
The dosage of pressor, cylinder barrel are controlled with the stroke of base, and detection speed is fast, and loading efficiency is high,
Low cost.
Claims (8)
1. for a charger for pile foundation axial bearing capacity detection, including being arranged on pile foundation to be measured
A the base (10) at () top, sets between described base (10) and pile foundation (a) end face to be measured
Pressure transducer (11), described base (10) is had to be arranged over a cylinder barrel (12), described cylinder barrel
(12) Open Side Down tips upside down on and forms closed cavity on base (10), on described cylinder barrel (12)
Side is provided with balancing weight, it is characterised in that: formed between described cylinder barrel (12) and base (10)
Filling high-efficient pressurizing agent (2) and the liquid not fired in closed cavity, described cylinder barrel sets in (12)
Having the excitation apparatus (13) for exciting high-efficient pressurizing agent (2), described excitation apparatus (13) wraps
Include the striker (131) for clashing into high-efficient pressurizing agent (2).
Charger for the detection of pile foundation axial bearing capacity the most according to claim 1, its
Be characterised by: described excitation apparatus (13) also includes exciting pipe (132), described in excite pipe (132)
Including the tubular container (1) of closed at both ends, tubular container is also filled with high-efficient pressurizing agent in (1)
(2), one end of tubular container (1) is provided with and the impact force of striker (131) can be transferred to pipe
The trigger head (3) that shape container (1) is internal.
Charger for the detection of pile foundation axial bearing capacity the most according to claim 2, its
It is characterised by: the high-efficient pressurizing agent (2) in described closed cavity is filled in multiple supercharging the most respectively
In bullet (30), the structure of described supercharging bullet (30) and the described structure phase exciting pipe (132)
With.
Charger for the detection of pile foundation axial bearing capacity the most according to claim 3, its
It is characterised by: each supercharging bullet (30) is deposited in described closed cavity, pours into not in closed cavity
The liquid of combustion, is used for filling the space between each supercharging bullet (30), and as high-efficient pressurizing agent (2)
Pressure propagation medium after exciting, improves and loads effect.
Charger for the detection of pile foundation axial bearing capacity the most according to claim 4, its
It is characterised by: described striker (131) is remotely controlled by electronic trigger.
6. the charger for the detection of pile foundation axial bearing capacity as claimed in claim 1, its
It is characterised by: described balancing weight includes ballast base (14), saddle weight (15) and guides
Post (16), ballast base (14) is affixed with cylinder barrel (12) top, and lead (16) is in lead
Direction layout of hanging down and its lower end are fixed on ballast base (14), and the center of saddle weight (15) sets
Being equipped with through hole to pass through for lead (16), the periphery of lead (16) is provided with screw thread and guiding
Post (16) is provided with stop nut (17), stop nut away from one end of ballast base (14)
(17) (14) seat at the bottom of saddle weight (15) and ballast is fixed together.
Charger for the detection of pile foundation axial bearing capacity the most according to claim 6, its
It is characterised by: device also includes the support mechanism (20) for helping balancing weight, described support
Mechanism (20) by support base (22) fix on the ground, support base (22) include with
Help the supporting leg (23) below the fixing bracing frame connected of mechanism (20) and bracing frame, supporting leg
(23) height adjustable, described support mechanism (40) by multiple guiding truss from bottom to top by
Joint is spliced, and described balancing weight is positioned at the passage in each guiding truss besieged city.
Charger for the detection of pile foundation axial bearing capacity the most according to claim 7, its
It is characterised by: be provided with when can make to move upward on balancing weight unimpeded, downward inside described each truss
The detent mechanism (21) of non-return during motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044927.XU CN205475364U (en) | 2016-01-18 | 2016-01-18 | A loading device for pile foundation axial bearing capacity detecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044927.XU CN205475364U (en) | 2016-01-18 | 2016-01-18 | A loading device for pile foundation axial bearing capacity detecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205475364U true CN205475364U (en) | 2016-08-17 |
Family
ID=56670939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620044927.XU Withdrawn - After Issue CN205475364U (en) | 2016-01-18 | 2016-01-18 | A loading device for pile foundation axial bearing capacity detecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205475364U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525635A (en) * | 2016-01-18 | 2016-04-27 | 交通运输部公路科学研究所 | Loading device used for detecting axial bearing capacity of pile foundation |
| CN109763525A (en) * | 2019-01-24 | 2019-05-17 | 胡习兵 | Assembled dead load test on pile foundation loading device and method |
| CN110847254A (en) * | 2019-11-22 | 2020-02-28 | 苏州恒信建设技术开发检测有限公司 | Loading device for detecting axial bearing capacity of pile foundation |
-
2016
- 2016-01-18 CN CN201620044927.XU patent/CN205475364U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525635A (en) * | 2016-01-18 | 2016-04-27 | 交通运输部公路科学研究所 | Loading device used for detecting axial bearing capacity of pile foundation |
| CN109763525A (en) * | 2019-01-24 | 2019-05-17 | 胡习兵 | Assembled dead load test on pile foundation loading device and method |
| CN110847254A (en) * | 2019-11-22 | 2020-02-28 | 苏州恒信建设技术开发检测有限公司 | Loading device for detecting axial bearing capacity of pile foundation |
| CN110847254B (en) * | 2019-11-22 | 2021-05-14 | 苏州恒信建设技术开发检测有限公司 | Loading device for detecting axial bearing capacity of pile foundation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20170908 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20170915 |