CN106677230A - Pile soil composite foundation bearing force detecting device - Google Patents
Pile soil composite foundation bearing force detecting device Download PDFInfo
- Publication number
- CN106677230A CN106677230A CN201611024062.1A CN201611024062A CN106677230A CN 106677230 A CN106677230 A CN 106677230A CN 201611024062 A CN201611024062 A CN 201611024062A CN 106677230 A CN106677230 A CN 106677230A
- Authority
- CN
- China
- Prior art keywords
- circular slab
- compound base
- test device
- bearing support
- loading test
- Prior art date
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a pile soil composite foundation bearing force detecting device. The pile soil composite foundation bearing force detecting device is provided with a measuring mechanism, a supporting mechanism and a force applying mechanism, and therefore detection on the joint bearing force of a pile and soil around the pile in a composite foundation is achieved. Through the pile soil composite foundation bearing force detecting device, the area integral bearing force in the detected area is detected, integral bearing force judgment is conducted on the pile soil composite foundation obtained after pile foundation strengthening instead of independent evaluation on the pile foundation and roadbed soil, and an important practical significance is achieved.
Description
Technical field
The present invention relates to relevant traffic quality testing department is carrying out the traffic route stake that flabbily base segment is adopted soil
Its bearing capacity is detected a kind of compound base loading test device after complex ground treatment technique.
Background technology
Some are passed through in High-Grade Highway Subgrade design is on the verge of many Subgrade soils such as reservoir section, humus soil
Section, its subgrade rating can not meet the requirement of Road Design service life, therefore between need to pressing necessarily in the paragraph roadbed
Away from all multi-form reinforcements such as cast-in-situ bored pile, precast concrete pile, lime-soil compaction pile, vibro-replacement stone column are arranged, stake is formed
Native composite foundation, so as to improve the total bearing capacity of the roadbed.However, presently relevant Vehicle Detection department is to the compound ground of stake soil
Do not have unified standard and device when base is detected, thus different detection working unit personnel combine the experience of oneself to from
The different roadbed operating mode that oneself is run into formulates detection scheme, so causing, detection scheme species is various, the detection quality good and the bad is not
Together, detection means is not quite similar, and detection cost difference is larger.
The content of the invention
For above-mentioned problems of the prior art, it is an object of the present invention to provide a kind of compound base holds
Force checking device is carried, solving to lack in prior art carries out unified bearing capacity inspection to stake and the common supporting body that soil is formed
Survey.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of compound base loading test device, including the circle above the stake being arranged in compound base
Plate, also including measuring mechanism, supporting mechanism and force application mechanism；Measuring mechanism includes multiple dial gauges, and multiple dial gauges are distributed on
The periphery of the circular slab and contact with the circular slab；Supporting mechanism includes that the longitudinal direction for being arranged on the circular slab both sides is held
Support is carried, two lateral bearing supports are provided with above longitudinal load-bearing support；Force application mechanism includes being arranged on lateral bearing
Multiple force-applying pieces above frame and the carrier bar from top to bottom set gradually between lateral bearing support and the circular slab
And jack, the two ends of the carrier bar are respectively provided with a carrying boom support.
Specifically, the lateral bearing support vertical is in the longitudinal load-bearing support；The longitudinal load-bearing support parallel to
The carrier bar.
Further, central point of the axis of the carrier bar through the circular slab.
Further, central point of the line of two carrying boom supports through the circular slab.
Further, central point of the axis of the jack through the circular slab.
Further, the both sides of the circular slab are distributed with mounting rod, and the dial gauge is arranged on mounting rod.
Specifically, the force-applying piece is tied using reinforcing bar.
Further, the height of the longitudinal load-bearing support is less than carrier bar and the height sum of carrying boom support.
Compared with prior art, the present invention has following technique effect：The present invention arranges measuring mechanism, supporting mechanism and applies
Force mechanisms, so as to realizing to stake in composite foundation and the detection of the common bearing capacity of soil around pile, the invention detects that institute's detection zone
Region entirety bearing capacity in domain, realizing carries out the judge of total bearing capacity to the compound base after pile foundation reinforcement, and
It is not to carry out pile foundation alone individually to evaluate with subgrade soils, has important practical significance.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the front view of the present invention；
Each label implication in figure：1-circular slab, 2-dial gauge, 3-longitudinal load-bearing support, 4-lateral bearing support,
5-force-applying piece, 6-carrier bar, 7-jack, 8-carry boom support, 9-mounting rod.
Specific embodiment
For the soft foundation of Lack of support, need to arrange stake formation compound base in ground, so as to improve
The total bearing capacity of this section of roadbed；The detection of foundation bearing capacity at present is primarily directed to single pile and is detected, lacks to stake and soil
The common supporting body for being formed carries out unified loading test.The compound base loading test device of the present invention, can
Realize that the common supporting body formed with soil to stake carries out unified loading test.
Referring to Fig. 1 and 2, the compound base loading test device of the present invention specifically includes that to be arranged on stake soil compound
Circular slab 1 above stake in ground, also including measuring mechanism, supporting mechanism and force application mechanism；Measuring mechanism includes multiple hundred
Table 2, multiple dial gauges 2 is divided to be distributed on the periphery of the circular slab 1 and contact with the circular slab 1；Supporting mechanism includes setting
The longitudinal load-bearing support 3 in the both sides of the circular slab 1 is put, the top of longitudinal load-bearing support 3 is provided with two lateral bearing supports
4；Force application mechanism includes being arranged on multiple force-applying pieces 5 of the top of lateral bearing support 4 and in lateral bearing support 4 and the circle
The carrier bar 6 from top to bottom set gradually between shape plate 1 and jack 7.The two ends of the carrier bar 6 are respectively provided with one and hold
Carrier beam support 8.Wherein, the height of longitudinal load-bearing support 3 is less than carrier bar 6 and the height sum of carrying boom support 8.
After jack 7 is played, in the presence of force-applying piece 5, jack 7 to circular slab 1 applies pressure to the present invention, passes through
Circular slab 1 is uniformly sent to the dead load that its top produces on detection pile crown；Under huge top static load, laterally hold
The two ends at the two ends and carrier bar 6 that carry support 4 can produce bending, meanwhile, the soil body densification on pile crown top, pile foundation produces few
Perhaps settle, so as to cause the two ends applying power of two longitudinal load-bearing supports 3 in lateral bearing support 4, dead load is sent to vertical
To bearing support 3, meanwhile, dead load is sent to carrier bar by the two ends applying power of carrier bar 6 in two carrying boom supports 8
Frame 8, so as to cause, two longitudinal load-bearing supports 3 and two carrying boom supports 8 undertake fractional load, two longitudinal load-bearings of surrounding
Support 3 and two carrying boom supports 8 can undertake 10%~20%, and pile foundation undertakes 80%~90%.So as to realize to compound ground
Stake and the detection of the common bearing capacity of soil around pile in base, the invention detects that the region entirety bearing capacity in institute's detection zone, real
Having showed carries out the judge of total bearing capacity to the compound base after pile foundation reinforcement, rather than carries out pile foundation and subgrade soils alone
Individually evaluate, have important practical significance.
The circular slab 1 of the present invention adopts the diameter of circular steel plate, circular steel plate to be slightly larger than stake footpath, and the thickness of circular steel plate should
This ensure that to be unlikely to produce under upper load effect and bend that the center of circular steel plate is heavy with the center of detected pile crown
Close.On the one hand the effect of the circular steel plate is that the dead load that top produces uniformly is sent on detection pile crown, on the other hand will
The lower produced sedimentation of upper load effect is counted by multiple dial gauges 2.
On the one hand the effect of the carrying boom support 8 of the present invention provides support for the carrier bar 6, on the other hand by part lotus
Load is sent to compound base.
The effect of jack 7 of the present invention is by the jack-up of carrier bar 6 so that upper load mainly loads on peg to be checked
On.
The acting as of the longitudinal load-bearing support 3 of both sides supports the lateral bearing support 4 above it, and fractional load is transmitted
To compound base.
In order to ensure the accuracy of the measurement device result of the present invention, the lateral bearing support 4 is perpendicular to the longitudinal direction
Bearing support 3；The longitudinal load-bearing support 3 is parallel to the carrier bar 6.The axis of the carrier bar 6 is through the circular slab 1
Central point.Central point of the line of two carrying boom supports 8 through the circular slab 1.The axis of the jack 7 is through institute
State the central point of circular slab 1.
The both sides of the circular slab 1 are distributed with mounting rod 9, and the dial gauge 2 is arranged on mounting rod 9.Mounting rod 9 is iron
Bar, using the Magnetic gauge stand of dial gauge 2 inner side of mounting rod 9 is adsorbed in, and the dial gauge 2 is provided with four, and four dial gauges 2 are equal
It is even to be arranged at the surrounding of circular slab 1.
The force-applying piece 5 is using any parts for being capable of applying power such as reinforcing bar bundles.
The present invention carries out precompressed of the manual pressure to certain value realization to compound base to jack 7, in a timing
Between the numerical value of 4 dial gauges 2 is read after section as initial reading, and then carry out hierarchical loading and round the clock uninterruptedly every one regularly
Between section reading is carried out to dial gauge 2.Surveyed data are arranged and analyzed, and then is judged that the bearing capacity of compound base is
It is no to meet design requirement.
Claims (8)
1. a kind of compound base loading test device, including the circular slab above the stake being arranged in compound base
(1), it is characterised in that also including measuring mechanism, supporting mechanism and force application mechanism；Measuring mechanism includes multiple dial gauges (2), many
Individual dial gauge (2) is distributed on the periphery of the circular slab (1) and contacts with the circular slab (1)；Supporting mechanism includes arranging
In the longitudinal load-bearing support (3) of the circular slab (1) both sides, two lateral bearings are provided with above longitudinal load-bearing support (3)
Support (4)；Force application mechanism includes the multiple force-applying pieces (5) being arranged on above lateral bearing support (4) and props up in lateral bearing
The carrier bar (6) from top to bottom set gradually between frame (4) and the circular slab (1) and jack (7), the carrier bar (6)
Two ends be respectively provided with a carrying boom support (8).
2. compound base loading test device as claimed in claim 1, it is characterised in that the lateral bearing support
(4) perpendicular to the longitudinal load-bearing support (3)；The longitudinal load-bearing support (3) is parallel to the carrier bar (6).
3. compound base loading test device as claimed in claim 2, it is characterised in that the carrier bar (6)
Central point of the axis through the circular slab (1).
4. compound base loading test device as claimed in claim 1, it is characterised in that two carrying boom supports
(3) central point of the line through the circular slab (1).
5. compound base loading test device as claimed in claim 1, it is characterised in that the jack (7)
Central point of the axis through the circular slab (1).
6. compound base loading test device as claimed in claim 1, it is characterised in that the circular slab (1)
Both sides are distributed with mounting rod (9), and the dial gauge (2) is on mounting rod (9).
7. compound base loading test device as claimed in claim 1, it is characterised in that the force-applying piece (5) is adopted
Tied with reinforcing bar.
8. compound base loading test device as claimed in claim 1, it is characterised in that the longitudinal load-bearing support
(3) height is less than carrier bar (6) and the height sum of carrying boom support (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024062.1A CN106677230B (en) | 2016-11-17 | 2016-11-17 | A kind of compound base loading test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024062.1A CN106677230B (en) | 2016-11-17 | 2016-11-17 | A kind of compound base loading test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106677230A true CN106677230A (en) | 2017-05-17 |
| CN106677230B CN106677230B (en) | 2019-04-23 |
Family
ID=58866570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611024062.1A Expired - Fee Related CN106677230B (en) | 2016-11-17 | 2016-11-17 | A kind of compound base loading test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677230B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306519A (en) * | 2019-06-26 | 2019-10-08 | 陕西长地建设工程质量检测有限公司 | Foundation bearing force checking device and method |
| CN111501715A (en) * | 2020-04-17 | 2020-08-07 | 孙景辉 | Device for detecting bearing capacity of pile soil composite foundation |
| CN112695812A (en) * | 2020-12-09 | 2021-04-23 | 山西华晋岩土工程勘察有限公司 | Pile soil composite foundation bearing capacity detection device |
| CN113789821A (en) * | 2021-10-13 | 2021-12-14 | 江苏河海工程建设监理有限公司 | Pile foundation detection device for building engineering supervision and application method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2284673B (en) * | 1993-12-08 | 1997-01-08 | Precision Monitoring & Control | Pile-testing apparatus |
| CN203701158U (en) * | 2014-01-20 | 2014-07-09 | 青岛润佳建设集团有限公司 | Pile foundation vertical bearing capacity detector |
| CN104328810A (en) * | 2014-11-07 | 2015-02-04 | 广州科技职业技术学院 | Improved method for detecting bearing capacity of precast pipe-pile single-pile foundation |
| CN105297793A (en) * | 2015-11-13 | 2016-02-03 | 镇江市丹徒区建筑工程质量检测中心 | Device for vertical pulling-resistance static loading test of single pile |
| CN205224129U (en) * | 2015-12-21 | 2016-05-11 | 武汉科技大学 | Single pile basis vertical bearing capacity's experiment detection device |
| TWI580531B (en) * | 2015-03-04 | 2017-05-01 | 施耐寶公司 | Rotatable control device with axial translation |
| CN206174013U (en) * | 2016-11-17 | 2017-05-17 | 长安大学 | A mechanism for detecting pile -soil composite foundation bearing capacity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW580531B (en) * | 2002-10-08 | 2004-03-21 | Great Asia Engineering Consult | A load test method of foundation piles and device thereof formed by an assembled main beam and aid beam system |
-
2016
- 2016-11-17 CN CN201611024062.1A patent/CN106677230B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2284673B (en) * | 1993-12-08 | 1997-01-08 | Precision Monitoring & Control | Pile-testing apparatus |
| CN203701158U (en) * | 2014-01-20 | 2014-07-09 | 青岛润佳建设集团有限公司 | Pile foundation vertical bearing capacity detector |
| CN104328810A (en) * | 2014-11-07 | 2015-02-04 | 广州科技职业技术学院 | Improved method for detecting bearing capacity of precast pipe-pile single-pile foundation |
| TWI580531B (en) * | 2015-03-04 | 2017-05-01 | 施耐寶公司 | Rotatable control device with axial translation |
| CN105297793A (en) * | 2015-11-13 | 2016-02-03 | 镇江市丹徒区建筑工程质量检测中心 | Device for vertical pulling-resistance static loading test of single pile |
| CN205224129U (en) * | 2015-12-21 | 2016-05-11 | 武汉科技大学 | Single pile basis vertical bearing capacity's experiment detection device |
| CN206174013U (en) * | 2016-11-17 | 2017-05-17 | 长安大学 | A mechanism for detecting pile -soil composite foundation bearing capacity |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306519A (en) * | 2019-06-26 | 2019-10-08 | 陕西长地建设工程质量检测有限公司 | Foundation bearing force checking device and method |
| CN110306519B (en) * | 2019-06-26 | 2020-10-30 | 陕西长地建设工程质量检测有限公司 | Foundation bearing capacity detection device and method |
| CN111501715A (en) * | 2020-04-17 | 2020-08-07 | 孙景辉 | Device for detecting bearing capacity of pile soil composite foundation |
| CN112695812A (en) * | 2020-12-09 | 2021-04-23 | 山西华晋岩土工程勘察有限公司 | Pile soil composite foundation bearing capacity detection device |
| CN113789821A (en) * | 2021-10-13 | 2021-12-14 | 江苏河海工程建设监理有限公司 | Pile foundation detection device for building engineering supervision and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106677230B (en) | 2019-04-23 |
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Granted publication date: 20190423 Termination date: 20201117 |