CN107059961A - A kind of static load of pile foundation device - Google Patents
A kind of static load of pile foundation device Download PDFInfo
- Publication number
- CN107059961A CN107059961A CN201710477205.2A CN201710477205A CN107059961A CN 107059961 A CN107059961 A CN 107059961A CN 201710477205 A CN201710477205 A CN 201710477205A CN 107059961 A CN107059961 A CN 107059961A
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- China
- Prior art keywords
- reinforcing bar
- mounting disc
- pile foundation
- perforating
- mounting
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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.)
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Classifications
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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
Abstract
The invention discloses a kind of static load of pile foundation device, including reaction beam, be used for reaction of bearing beam positioned at reaction beam two ends supporting station, be fixedly installed in above reaction beam jack, be fixed on the force disk of jack piston rod, the connector for being detachably connected reinforcing bar and force disk.In test, connector connection force disk and reinforcing bar need to only be passed through, it is not required to cut the prolonged bar of certain length further according to the specific measurement between force disk and reinforcing bar, then the two ends of prolonged bar are respectively welded again and are fixed on reinforcing bar and force disk, reduce the number of times of welding and cutting, so as to improve installation effectiveness, while reducing influence of the welding job to operator.
Description
Technical field
The present invention relates to dead load test on pile foundation, and in particular to a kind of static load of pile foundation device.
Background technology
The most direct most reliable method of Pile Bearing Capacity is weighed during static load test, anchoring pile counter-force boom device surveys single pile
Vertical bearing capacity be a kind of conventional method.But spreading is carried out to the reinforcing bar of anchoring pile during experiment, and it is crossed over counter-force
Beam is welded on the force disk above jack, and jack pushes up force disk upwards, is drawn the reinforcing bar in anchoring pile, measurement stake
Vertically pulling-resistant data, so as to detect whether the vertically pulling-resistant ability of pile foundation meets standard.
Because in pile anchoring, the length that reinforcing bar is emerged is not long, therefore being welded in reinforcing bar accurate stable on force disk, it need to prolong
Long muscle.First then prolonged bar is welded between reinforcing bar and force disk to appropriate length by cutting prolonged bar, after being completed
Cut away prolonged bar.The quantities welded and cut in whole process is excessive, not only to take a significant amount of time, and weld job
To the healthy unfavorable of workman.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of static load of pile foundation device, reducing welding
With the number of times of cutting, detection efficiency is improved.
To achieve the above object, the invention provides following technical scheme：
A kind of static load of pile foundation device, including reaction beam, the supporting station positioned at reaction beam two ends for reaction of bearing beam, fixed installation
Jack above reaction beam, the force disk for being fixed on jack piston rod, for being detachably connected reinforcing bar and force disk
Connector.
By using above-mentioned technical proposal, in test, only root again need to be not required to by connector connection force disk and reinforcing bar
The prolonged bar of certain length is cut according to the specific measurement between force disk and reinforcing bar, then the two ends of prolonged bar are respectively welded again
Reinforcing bar and force disk are fixed on, the number of times of welding and cutting is reduced, so that installation effectiveness is improved, while reducing Welder
Make the influence to operator.
The further setting of the present invention is：The connector is extension reinforcing bar, and described extension reinforcing bar one end is welded in reinforcing bar
And the other end is fed through force disk and is removably connected to force disk.
By using above-mentioned technical proposal, in test, extension reinforcing bar one end is welded on reinforcing bar, then makes extension steel
The muscle other end is fed through force disk, then together with it is removably fixed with force disk.It is not required to carry out force disk again and prolongs
Welding between long reinforcing bar, while being also not required to measure and cut extension reinforcing bar, need to only make the length of extension reinforcing bar be more than force disk
The distance between with reinforcing bar, it is more convenient installation.
The further setting of the present invention is：Mounting hole is offered on the force disk, the mounting hole is circumferential along force disk
Provided with several, it is embedded in the mounting hole and is fixed with mounting blocks, cone tank, the cone tank bottom is offered on the mounting blocks
End offers the stop collar for offering perforating is embedded with cylinder groove, the cone tank, and the stop collar is along its circumferential split
Set in some pieces of limited blocks, the extension reinforcing bar is fed through cylinder groove and perforating and with perforating in interference fit.
By using above-mentioned technical proposal, when mounted, first extension reinforcing bar is worn in stop collar above stop collar,
Now limited block pushes against extension reinforcing bar, and then extension reinforcing bar lower end is fixed to being welded in reinforcing bar.In extension reinforcing bar by steel
When muscle is to its downward pulling force, extension reinforcing bar and stop collar are moved downward simultaneously, now because cone tank is tapered, therefore stop collar
Gap between cone tank is less and less, and the gap between extension reinforcing bar and stop collar is less and less, i.e., pressure between the two
Power is increasing, and frictional force is increasing, it is ensured that extension reinforcing bar can be stably connected with force disk.After measurement is finished, make very heavy
Power is unloaded on top, and limited block is taken out upwards, you can by separation extension reinforcing bar and force disk, force disk is reused.
The further setting of the present invention is：The perforating inwall is provided with screw thread, and the extension screw thread steel, which is connected to, to be worn
Apertured.
By using above-mentioned technical proposal, so that reinforcing bar is more stable links together for stop collar and extension, make spacing
Set can be with extension steel bar motion, and during ensuring that extension reinforcing bar is moved downward, stop collar can be moved downward, and reduce stop collar and taper
Gap between groove, makes extension reinforcing bar and stop collar to stablize being arranged on for fastening and exerts a force on disk.
The further setting of the present invention is：The connector is the mounting disc and fix bar below reaction beam, described
Fix bar is fixedly connected on mounting disc and force disk, and the fix bar is circumferentially with some along mounting disc, and reinforcing bar is fed through peace
Sabot and it is removably connected to mounting disc.
By using above-mentioned technical proposal, in test, reinforcing bar one end is directly fed through force disk, then by it and exert a force
Disk is removably fixed with together.It is not required to weld and cuts extension reinforcing bar, is more convenient installation, and save the volume needed for experiment
The outer material for making extension reinforcing bar.
The further setting of the present invention is：Mounting hole is offered in the mounting disc, the mounting hole is circumferential along mounting disc
Provided with several, it is embedded in the mounting hole and is fixed with mounting blocks, cone tank, the cone tank bottom is offered on the mounting blocks
End offers the stop collar for offering perforating is embedded with cylinder groove, the cone tank, and the stop collar is along its circumferential split
Set in some pieces of limited blocks, reinforcing bar is fed through cylinder groove and perforating and with perforating in interference fit.
By using above-mentioned technical proposal, when mounted, limited block is first taken out, then wear reinforcing bar below mounting blocks
Enter in mounting blocks, then limited block is put into stop collar again, now limited block pushes against reinforcing bar.In reinforcing bar by tension
When, reinforcing bar drives stop collar to move downward, and because taper sheath is tapered, therefore the distance between stop collar and cone tank are increasingly
Small, the gap between reinforcing bar and stop collar is less and less, i.e., pressure between the two is increasing, and frictional force is increasing, really
Protecting reinforcing bar can be stably connected with mounting disc.After measurement is finished, jack is unloaded power, limited block is taken out upwards, you can separation of steel
Muscle and mounting disc.The device does not have waste material generation in measurement process, and complete equipment can be recycled, and save inspection
Survey cost.
The further setting of the present invention is：The perforating inwall is provided with screw thread, and screw thread steel is connected to perforating.
By using above-mentioned technical proposal, so that stop collar and reinforcing bar is more stable links together, makes stop collar can
With steel bar motion, during ensuring that reinforcing bar is moved downward, stop collar can be moved downward, between reducing between stop collar and cone tank
Gap, makes reinforcing bar and stop collar to stablize being arranged in mounting disc of fastening.
The further setting of the present invention is：Several adjusting sets are arranged with outside the mounting disc, the adjusting set split is set
It is set to two symmetrical regulations point to cover, it is in be detachably connected also to offer in the adjusting set between mounting hole, the adjusting set,
And be in be detachably connected between the adjusting set and mounting disc.
, can be according to the stake footpath of pile foundation come in the additional dress adjusting set of mounting disc, it is ensured that reinforcing bar by using above-mentioned technical proposal
It can be stably mounted in mounting disc.Even if the device can be used for the pile measurement of various diameters, its applicability is improved.
The further setting of the present invention is：Screwed hole, the tune are radially offered in the adjusting set and mounting disc
The screwed hole internal thread of section set is connected with connecting screw rod, and the connecting screw rod near the mounting disc is threadedly connected to mounting disc,
Other described connecting screw rods are threadedly connected to two radially adjacent adjusting sets, and described connecting screw rod one end is offered for turning
The force groove of dynamic connecting screw rod.
By using above-mentioned technical proposal, when mounted, adjusting set and mounting disc are fixedly connected with by connecting screw rod, and
Adjusting set and adjusting set, so that radially being fixed between adjusting set and mounting disc.Prevent that adjusting set should due to drawing in detection
Power and separated with mounting disc, detection is smoothed out.
The further setting of the present invention is：Through hole, the through hole are radially offered in the adjusting set and mounting disc
Adapter sleeve is inside embedded with, the adapter sleeve and through hole are opened in adapter sleeve in interference fit, the screwed hole.
By using above-mentioned technical proposal, so as to facilitate the processing of screwed hole, the screw thread that making connecting screw rod can stablize connects
It is connected to screwed hole.
The present invention has advantages below：Reducing needs the number of times of the welding and cutting carried out in detection process, improve detection
Efficiency；And can detect that the scope of application is larger to the pile foundation in various stake footpaths.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment one；
Fig. 2 is the top view of embodiment one；
Fig. 3 is a kind of partial sectional view for the disk that exerts a force of embodiment；
Fig. 4 is the structural representation of embodiment two；
Fig. 5 is the side view of embodiment two（It is mainly used in embodying fix bar）；
Fig. 6 is the top view of mounting disc in embodiment two；
Fig. 7 is the partial sectional view of mounting disc in embodiment two；
Fig. 8 is the top view of mounting disc in embodiment three；
Fig. 9 is the sectional view of three kinds of mounting discs of embodiment；
Figure 10 is the partial schematic diagram of mounting disc in embodiment three.
Reference：1st, reaction beam；2nd, pile foundation；3rd, supporting station；4th, jack；5th, exert a force disk；6th, mounting hole；7th, install
Block；8th, cone tank；9th, cylinder groove；10th, stop collar；11st, perforating；12nd, limited block；13rd, connector；14th, reinforcing bar is extended；15、
Mounting disc；16th, fix bar；17th, adjusting set；18th, regulation point set；19th, through hole；20th, adapter sleeve；21st, screwed hole；22nd, spiral shell is connected
Bar；23rd, exert a force groove；24th, reinforcing bar.
Embodiment
The present invention will be further described referring to the drawings.
Embodiment one：
As shown in figure 1, a kind of static load of pile foundation device, including reaction beam 1, reaction beam 1 is positioned at the top of pile foundation 2.Under the two ends of reaction beam 1
Side is provided with the supporting station 3 for being fixed on ground.The top of reaction beam 1 is installed with jack 4, and jack 4 and pile foundation 2 are in coaxially to set
Put.The top of jack 4 is coaxial to be fixed with force disk 5.
As depicted in figs. 1 and 2, mounting hole 6 is offered on force disk 5, mounting hole 6 is circumferentially with several along force disk 5,
Mounting hole 6 is corresponded with the reinforcing bar 24 in pile foundation 2.As shown in Figures 2 and 3, it is embedded in mounting hole 6 and is fixed with mounting blocks 7, is pacified
Cone tank 8 is offered on dress block 7, the bottom of cone tank 8 offers cylinder groove 9.Stop collar 10, stop collar are embedded with cone tank 8
Perforating 11 is offered on 10, the inwall of perforating 11 is provided with screw thread.Cylinder groove 9, cone tank 8 and perforating 11 are coaxially disposed.
Stop collar 10 is set in some pieces of limited blocks 12 along its circumferential split.
As shown in figure 1, being provided with connector 13 between force disk 5 and reinforcing bar 24, connector 13 is extension reinforcing bar 14, extends steel
The one end of muscle 14 is welded in reinforcing bar 24.As shown in figure 3, extension reinforcing bar 14 is fed through cylinder groove 9 and perforating back to the one end of reinforcing bar 24
11 and it is threaded with perforating 11.
The operation principle of the device is as described below：
1st, supporting table is fixed on the ground around pile foundation 2, then reaction beam 1 is placed in two supporting tables；Will be very heavy
Top 4 is fixedly mounted on reaction beam 1, and now jack 4 and pile foundation 2 are coaxial, and force disk 5 is coaxially fixed on jack 4；
2nd, it will extend in the cone tank 8 that the one end of reinforcing bar 14 is fed through on force disk 5 from top to bottom, then connect the screw thread of stop collar 10
Extension reinforcing bar 14 is connected to, stop collar 10 is caught in cone tank 8, makes cone tank 8 and stop collar 10 in interference fit；
Then the extension reinforcing bar other end is fixed and be welded on reinforcing bar 24；
3rd, 4 pairs of force disks 5 of jack have a upward power, drive extension reinforcing bar 14 upwards, the final reinforcing bar driven in pile foundation 2
24 upwards, reach the vertical drawing to pile foundation 2, so that the vertically pulling-resistant data to measure pile foundation 2.
Embodiment two：
The difference of embodiment two and embodiment one is：Connector 13 is different.
As shown in Figure 4 and Figure 5, connector 13 includes mounting disc 15 and fix bar 16, and mounting disc 15 is located under reaction beam 1
Side, and be coaxially disposed with force disk 5.Mounting disc 15 and force disk 5 can be any materials such as concrete or metal.Fix bar 16 is set
There are some and between mounting disc 15 and force disk 5, the two ends of fix bar 16 are respectively fixedly connected in mounting disc 15 and force disk 5.
Fix bar 16 can be connected mounting disc 15 with force disk 5 by pre-buried mode, and the mode that can be also connected through a screw thread, which is connected, to be installed
Disk 15 and force disk 5.
As shown in Figure 6 and Figure 7, mounting hole 6 is offered in mounting disc 15, mounting hole 6 is circumferentially with some along mounting disc 15
Individual, mounting hole 6 is corresponded with the reinforcing bar 24 in pile foundation 2.It is embedded in mounting hole 6 and is fixed with mounting blocks 7, is opened up on mounting blocks 7
There is cone tank 8, the bottom of cone tank 8 offers cylinder groove 9.It is embedded with to offer on stop collar 10, stop collar 10 in cone tank 8 and wears
Apertured 11, the inwall of perforating 11 is provided with screw thread.Cylinder groove 9, cone tank 8 and perforating 11 are coaxially disposed.Stop collar 10 along its
Circumferential split is set in some pieces of limited blocks 12.The one end of reinforcing bar 24 is fed through cylinder groove 9 and perforating 11 and is in perforating 11
Threaded connection.
1st, supporting table is fixed on the ground around pile foundation 2, then reaction beam 1 is placed in two supporting tables；
2nd, limited block 12 is taken out, jack 4 is fixedly mounted on reaction beam 1, now jack 4 and pile foundation 2 are coaxial, and force
Disk 5 is coaxially fixed on jack 4；
3rd, during jack 4 is placed on into reaction beam 1, the one end of reinforcing bar 24 is fed through cone tank 8, by the screw thread of stop collar 10
Reinforcing bar 24 is connected to, stop collar 10 is caught in cone tank 8, makes cone tank 8 and stop collar 10 in interference fit；
4th, 4 pairs of force disks 5 of jack have a upward power, drive the reinforcing bar 24 in pile foundation 2 upward, reach the vertical drawing to stake
Pull out, so that the vertically pulling-resistant data to measure pile foundation 2.
Embodiment three：
The difference of embodiment three and embodiment two is：As shown in figure 8, being arranged with several adjusting sets 17 outside mounting disc 15, adjust
Also mounting hole 6 is circumferentially with section set 17 along it.One split of adjusting set 17 is arranged to two symmetrical regulation point sets 18.As schemed
Shown in 9 and Figure 10, radially offered in adjusting set 17 and mounting disc 15 in through hole 19, through hole 19 and be fixedly embedded at connection
Set 20, adapter sleeve 20 and through hole 19 are in interference fit.Adapter sleeve 20 is made up of the material of the convenient processing such as metal or plastics.
As shown in Figure 9 and Figure 10, screwed hole 21 is offered on adapter sleeve 20.The internal thread of screwed hole 21 connection of adjusting set 17
There is connecting screw rod 22, the one end of connecting screw rod 22 offers the force groove 23 for rotating connecting screw rod 22, and force groove 23 is in six sides
Shape.Connecting screw rod 22 near mounting disc 15 is threadedly connected to mounting disc 15, and other connecting screw rods 22 are threadedly connected to along footpath
To two adjacent adjusting sets 17.
Before the test, according to the pile foundation 2 that need to be measured, connecting screw rod 22 is screwed by die nut, thus dismantle or
Adjusting set 17 is installed, it is ensured that reinforcing bar 24 may be mounted in mounting disc 15 or adjusting set 17, the device is applied to a variety of pile foundations 2
Pile foundation 2.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of static load of pile foundation device, it is characterized in that：Including reaction beam（1）, positioned at reaction beam（1）Two ends are used for reaction of bearing beam
（1）Supporting station（3）, be fixedly installed in reaction beam（1）The jack of top（4）, be fixed on jack（4）The force of piston rod
Disk（5）, for being detachably connected reinforcing bar（24）With force disk（5）Connector（13）.
2. a kind of static load of pile foundation device according to claim 1, it is characterized in that：The connector（13）For extension reinforcing bar
（14）, the extension reinforcing bar（14）One end is welded in reinforcing bar（24）And the other end is fed through force disk（5）And be removably connected to
Exert a force disk（5）.
3. a kind of static load of pile foundation device according to claim 2, it is characterized in that：The force disk（5）On offer installation
Hole（6）, the mounting hole（6）Along force disk（5）Several are circumferentially with, the mounting hole（6）Inside it is embedded and is fixed with mounting blocks
（7）, the mounting blocks（7）On offer cone tank（8）, the cone tank（8）Bottom offers cylinder groove（9）, the taper
Groove（8）Inside it is embedded with and offers perforating（11）Stop collar（10）, the stop collar（10）It is in if being set along its circumferential split
Dry block limited block（12）, the extension reinforcing bar（14）It is fed through cylinder groove（9）And perforating（11）And and perforating（11）It was in
It is full of cooperation.
4. a kind of static load of pile foundation device according to claim 3, it is characterized in that：The perforating（11）Inwall is provided with spiral shell
Line, the extension reinforcing bar（14）It is threadedly connected to perforating（11）.
5. a kind of static load of pile foundation device according to claim 1, it is characterized in that：The connector（13）For positioned at reaction beam
（1）The mounting disc of lower section（15）And fix bar（16）, the fix bar（16）It is fixedly connected on mounting disc（15）With force disk
（5）, the fix bar（16）Along mounting disc（15）It is circumferentially with some, reinforcing bar（24）It is fed through mounting disc（15）And it is detachable
It is connected to mounting disc（15）.
6. a kind of static load of pile foundation device according to claim 5, it is characterized in that：The mounting disc（15）On offer installation
Hole（6）, the mounting hole（6）Along mounting disc（15）Several are circumferentially with, the mounting hole（6）Inside it is embedded and is fixed with mounting blocks
（7）, the mounting blocks（7）On offer cone tank（8）, the cone tank（8）Bottom offers cylinder groove（9）, the taper
Groove（8）Inside it is embedded with and offers perforating（11）Stop collar（10）, the stop collar（10）It is in if being set along its circumferential split
Dry block limited block（12）, reinforcing bar（24）It is fed through cylinder groove（9）And perforating（11）And and perforating（11）In interference fit.
7. a kind of static load of pile foundation device according to claim 6, it is characterized in that：The perforating（11）Inwall is provided with spiral shell
Line, reinforcing bar（24）It is threadedly connected to perforating（11）.
8. a kind of static load of pile foundation device according to claim 7, it is characterized in that：The mounting disc（15）It is arranged with outside some
Individual adjusting set（17）, the adjusting set（17）Split is arranged to two symmetrical regulation point sets（18）, the adjusting set（17）On
Also mounting hole is offered（6）, the adjusting set（17）Between in being detachably connected, and the adjusting set（17）And mounting disc（15）
Between in being detachably connected.
9. a kind of static load of pile foundation device according to claim 8, it is characterized in that：The adjusting set（17）And mounting disc（15）
On radially offer screwed hole（21）, the adjusting set（17）Screwed hole（21）Internal thread is connected with connecting screw rod
（22）, near the mounting disc（15）Connecting screw rod（22）It is threadedly connected to mounting disc（15）, other described connecting screw rods
（22）It is threadedly connected to two radially adjacent adjusting sets（17）, the connecting screw rod（22）One end is offered for the company of rotation
Connect screw rod（22）Force groove（23）.
10. a kind of static load of pile foundation device according to claim 9, it is characterized in that：The adjusting set（17）And mounting disc
（15）On radially offer through hole（19）, the through hole（19）Inside it is embedded with adapter sleeve（20）, the adapter sleeve（20）With
Through hole（19）In interference fit, the screwed hole（21）It is opened in adapter sleeve（20）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710477205.2A CN107059961B (en) | 2017-06-21 | 2017-06-21 | A kind of static load of pile foundation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710477205.2A CN107059961B (en) | 2017-06-21 | 2017-06-21 | A kind of static load of pile foundation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107059961A true CN107059961A (en) | 2017-08-18 |
| CN107059961B CN107059961B (en) | 2019-06-18 |
Family
ID=59594300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710477205.2A Active CN107059961B (en) | 2017-06-21 | 2017-06-21 | A kind of static load of pile foundation device |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554479U (en) * | 2009-11-24 | 2010-08-18 | 天津市振华预应力技术有限公司 | Mining anchor rod |
| CN201857620U (en) * | 2010-11-05 | 2011-06-08 | 中国科学院武汉岩土力学研究所 | Device for conducting vertical anti-pulling static loading experiment to pile and board foundation of electricity transmission tower |
| CN102561599A (en) * | 2011-12-08 | 2012-07-11 | 东南大学 | Connector of steel stranded wires and finished twisted steel |
| CN105256846A (en) * | 2015-10-14 | 2016-01-20 | 常州华厦建设工程质量检测有限公司 | Connecting device special for single-pile vertical pulling test |
| CN206245359U (en) * | 2016-12-02 | 2017-06-13 | 广东中科华大工程技术检测有限公司 | Foundation pile static loading test device |
-
2017
- 2017-06-21 CN CN201710477205.2A patent/CN107059961B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554479U (en) * | 2009-11-24 | 2010-08-18 | 天津市振华预应力技术有限公司 | Mining anchor rod |
| CN201857620U (en) * | 2010-11-05 | 2011-06-08 | 中国科学院武汉岩土力学研究所 | Device for conducting vertical anti-pulling static loading experiment to pile and board foundation of electricity transmission tower |
| CN102561599A (en) * | 2011-12-08 | 2012-07-11 | 东南大学 | Connector of steel stranded wires and finished twisted steel |
| CN105256846A (en) * | 2015-10-14 | 2016-01-20 | 常州华厦建设工程质量检测有限公司 | Connecting device special for single-pile vertical pulling test |
| CN206245359U (en) * | 2016-12-02 | 2017-06-13 | 广东中科华大工程技术检测有限公司 | Foundation pile static loading test device |
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| Publication number | Publication date |
|---|---|
| CN107059961B (en) | 2019-06-18 |
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