CN109440844A - A kind of static test settlement observer for exempting from datum line beam - Google Patents
A kind of static test settlement observer for exempting from datum line beam Download PDFInfo
- Publication number
- CN109440844A CN109440844A CN201811633160.4A CN201811633160A CN109440844A CN 109440844 A CN109440844 A CN 109440844A CN 201811633160 A CN201811633160 A CN 201811633160A CN 109440844 A CN109440844 A CN 109440844A
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- connection
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- pile foundation
- leveling device
- exempting
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 230000003068 static effect Effects 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 238000004062 sedimentation Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
Classifications
-
- 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)
Abstract
The invention discloses a kind of static test settlement observers for exempting from datum line beam, the device includes that leveling device group is connected to two groups more, every group is made of multiple more connection leveling devices respectively, all more connection leveling devices pass through conduit respectively and connect with water pipe, the input terminal of the water pipe and the output end of automatic water injection tank connect, each more connection leveling devices pass through cable respectively and connect with data collector, the data collector is connect with controller, all more connection leveling devices in one group are uniformly mounted at the top of pile foundation, all more connection leveling devices in another group are arranged at datum, jack is installed at the top center of the pile foundation, preloading counter force system is provided with right above the jack, and the preloading counter force system is pressed closer at the top of the jack；The present invention can be effectively prevented from the drawbacks of traditional benchmark beam influences pile foundation settlement test, improve the accuracy rate of test.
Description
Technical field
The present invention relates to the foundation bearing capacities of civil engineering to detect test field, and in particular to a kind of static load is heavy
Observation device drops.
Background technique
The static load test of foundation bearing capacity test is the important tests of building foundation test of bearing capacity, number
According to reliable and validity be directly related to building safety quality.The settlement measurement method of traditional foundation basis static test be
Displacement sensor is fixed on the datum line beam of an erected on site, the gauge head of displacement sensor is extended on pile foundation measuring point,
To sedimentation deformation of the relative displacement as pile foundation between measuring basis beam and measuring point.This measurement method does not consider base
The erection problem of quasi- beam.Since datum line beam is usually the steel I-beam of about 5~10 meters of a root long degree, limited length can only frame
Near measured point.Since static load test needs tens tons of counter-forces for arriving kiloton, these counter-forces are usually by banking up on site
Big field mass provide.Thus it leads to the problem of a new big field mass and banks up region itself and also generated by weight and sink
Drop, these subsiding belt moving frames are set to datum line beam above and settle together.Therefore the sedimentation that practical static load test measures is opposite
In the sedimentation of datum line beam, rather than absolute sedimentation value.In addition, the variation of the morning and evening temperature difference can also make when girder steel length is too long
Deformation occurs for girder steel, and sedimentation is caused to generate error.It is not solved effectively for a long time based on this problem.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of static test sedimentations for exempting from datum line beam to see
Device is surveyed, to solve to carry out the big technical problem of static test experimental data error using datum line beam in the prior art.
The present invention is achieved by the following technical solutions:
The present invention provides a kind of static test settlement observer for exempting from datum line beam, which includes being connected to water two groups more
Locating tab assembly device group is connected to leveling device group more and is made of respectively multiple more connection leveling devices every group, all
More connection leveling devices pass through conduit respectively and connect with water pipe, the input terminal of the water pipe and the output end of automatic water injection tank
Connection, each more connection leveling devices pass through cable respectively and connect with data collector, the data collector
It is connect with controller, all more connection leveling devices being connected in leveling device group one group are uniformly mounted on pile foundation more
Top, all more connection leveling devices being connected in leveling device group another group are arranged at datum more, institute
It states and jack is installed at the top center of pile foundation, preloading counter force system, and described thousand are provided with right above the jack
The top on jin top presses closer the preloading counter force system.
Further, the datum mark is far from the pile foundation.
Further, the more connection leveling devices being arranged in more connection leveling device groups at the top of pile foundation are many
In four, the more connection leveling devices being connected in leveling device group another group are no less than 1 more.
Further, the automatic water injection tank is arranged in datum.
The present invention has the advantage that the present invention provides a kind of static test sedimentations for exempting from datum line beam compared with prior art
Observation device, using multiple more connection leveling devices, realizing does not have detection to dead load test on pile foundation by datum line beam,
The drawbacks of avoiding datum line beam test, and device is easy to operate, test data is accurate, greatly improves testing efficiency and test
Accuracy rate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the static test settlement observer for exempting from datum line beam of the present invention；
Fig. 2 is a kind of use state diagram for the static test settlement observer for exempting from datum line beam of the present invention；
The perspective view of more connection leveling devices is selected in Fig. 3 embodiment.
In figure: 1, being connected to leveling device more；2, conduit；3, water pipe；4, automatic water injection tank；5, cable；6, data
Collector；7, controller；8, pile foundation；9, preloading counter force system；10, jack.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of a kind of embodiment provided by the invention referring to FIG. 1-2: static test settlement observation dress for exempting from datum line beam
It sets, which is characterized in that the device includes that leveling device group is connected to two groups more, and leveling device group difference is connected to every group more
(more 1 perspective views of connection leveling device such as Fig. 3 that the present embodiment uses) is constituted by multiple more connection leveling devices 1,
All more connection leveling devices 1 are connect by conduit 2 with water pipe 3 respectively, the input terminal and automatic water injection tank 4 of water pipe 3
Output end connection, much more each connection leveling devices 1 are connect by cable 5 with data collector 6 respectively, and data acquire
Device 6 is connect with controller 7, and all more connection leveling devices 1 being connected in leveling device group one group are uniformly installed more
At 8 top of pile foundation, all more connection leveling devices 1 being connected in leveling device group another group are arranged at benchmark more
At point, jack 10 is installed, the surface of jack 10 is provided with preloading counter force system 9, and thousand at the top center of pile foundation 8
The top on jin top 10 presses closer preloading counter force system 9.
Preferably, datum mark is far from pile foundation 8.
Preferably, more connection leveling devices 1 in more connection leveling device groups at the top of pile foundation 8 are set not
The more connection leveling devices 1 being connected in leveling device group less than four, another group are no less than 1 more.
Preferably, automatic water injection tank 4 is arranged in datum.
Working principle:
First, in accordance with foundation static test job specification, correct preloading preloading counter force system 9, preloading is completed and is stablized
Afterwards, jack 10 is installed at the top of pile foundation 8；
Then equipment is installed, all in more connection leveling device groups in the top of pile foundation 8 is connected more
Logical leveling device 1 respectively uniformly install at the top of pile foundation by surrounding, and three are selected in the present invention；
More connection leveling devices 1 in another group are fixedly mounted on a datum remote enough from pile foundation,
1 is selected in the present embodiment；
Then automatic water injection tank 4 is fixed near datum mark；
Whole more connection leveling devices 1 are connect by corresponding conduit 2 with water pipe 3 respectively, then by water pipe 3
It is connect with automatic water injection tank 4；
The power supply of whole more connection leveling devices 1 is connect using cable 5 with data collector 6, data are adopted
Storage 6 and controller 7 establish connection；
It is then turned on automatic water injection tank 4, is filled the water by water pipe 3 with conduit 2 to be connected to leveling devices 1, so that often more
Liquid level in a more connection leveling devices 1 is in rational position；
Turn-on data collector 6 acquires the data of each more connection leveling devices 1, and is conveyed to controller 7；
Start pile foundation preloading operation.
During pile foundation settlement, the liquid levels being connected in leveling device 1 change more and delta data is real-time
Data collector 6 is fed back to, and is delivered in controller 7, the sedimentation variation of pile foundation 8 during test can be effectively detected.
During the test, more connection leveling devices 1 of datum are placed on and are placed on the more of 8 top of pile foundation
It is connected between leveling device 1 and is interconnected, when its any liquid level changes, will have a direct impact on liquid level in other devices
Generate variation, so can effective detection of pier foundation infall process, and more connection leveling devices 1 of datum are because of placement location
There is not far from pile foundation 8 and datum line beam to influence its sedimentation, therefore, avoids the drawbacks of traditional settling test is using datum line beam, improve
Measuring accuracy.
Claims (4)
1. a kind of static test settlement observer for exempting from datum line beam, which is characterized in that the device includes being connected to level two groups more
Measuring device group is connected to leveling device group more and is made of respectively multiple more connections leveling device (1) every group, all
More connections leveling device (1) are connect by conduit (2) with water pipe (3) respectively, the input terminal of the water pipe (3) and automatic note
The output end of water tank (4) connects, and each more connections leveling device (1) are acquired by cable (5) and data respectively
Device (6) connection, the data collector (6) connect with controller (7), are connected to one group all more in leveling device group more
Connection leveling device (1) is uniformly mounted at the top of pile foundation (8), is connected to another group all more in leveling device group more
Connection leveling device (1) is arranged at datum, is equipped with jack (10) at the top center of the pile foundation (8),
It is provided with preloading counter force system (9) right above the jack (10), and presses closer the heap at the top of the jack (10)
It carries counter force system (9).
2. a kind of static test settlement observer for exempting from datum line beam according to claim 1, which is characterized in that the base
On schedule far from the pile foundation (8).
3. a kind of static test settlement observer for exempting from datum line beam according to claim 2, which is characterized in that setting exists
More connection leveling devices (1) in more connection leveling device groups at the top of pile foundation (8) are no less than four, more than another group
More connection leveling devices (1) in connection leveling device group are no less than 1.
4. a kind of static test settlement observer for exempting from datum line beam according to claim 3, which is characterized in that it is described from
Dynamic water injecting tank (4) are arranged in datum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633160.4A CN109440844A (en) | 2018-12-29 | 2018-12-29 | A kind of static test settlement observer for exempting from datum line beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633160.4A CN109440844A (en) | 2018-12-29 | 2018-12-29 | A kind of static test settlement observer for exempting from datum line beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109440844A true CN109440844A (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811633160.4A Pending CN109440844A (en) | 2018-12-29 | 2018-12-29 | A kind of static test settlement observer for exempting from datum line beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258671A (en) * | 2019-07-15 | 2019-09-20 | 深圳市建设工程质量检测中心 | Level and foundation pile static loading test system and method based on hydrostatic leveling |
| CN113323035A (en) * | 2021-05-31 | 2021-08-31 | 深圳华新国际建筑工程设计顾问有限公司 | Detection device and detection method for bearing capacity of foundation pile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3946601A (en) * | 1973-07-20 | 1976-03-30 | Technion Research And Development Foundation, Ltd. | Method of load testing foundations |
| CN1355356A (en) * | 2000-11-30 | 2002-06-26 | 武汉南方岩土工程新技术开发公司 | Remote measuring method and equipment for vertical settling without reference beam |
| CN104775456A (en) * | 2015-02-16 | 2015-07-15 | 中交天津港湾工程研究院有限公司 | Port engineering load test sedimentation measurement system |
| CN209468793U (en) * | 2018-12-29 | 2019-10-08 | 安徽省城建设计研究总院股份有限公司 | A kind of static test settlement observer for exempting from datum line beam |
-
2018
- 2018-12-29 CN CN201811633160.4A patent/CN109440844A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3946601A (en) * | 1973-07-20 | 1976-03-30 | Technion Research And Development Foundation, Ltd. | Method of load testing foundations |
| CN1355356A (en) * | 2000-11-30 | 2002-06-26 | 武汉南方岩土工程新技术开发公司 | Remote measuring method and equipment for vertical settling without reference beam |
| CN104775456A (en) * | 2015-02-16 | 2015-07-15 | 中交天津港湾工程研究院有限公司 | Port engineering load test sedimentation measurement system |
| CN209468793U (en) * | 2018-12-29 | 2019-10-08 | 安徽省城建设计研究总院股份有限公司 | A kind of static test settlement observer for exempting from datum line beam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258671A (en) * | 2019-07-15 | 2019-09-20 | 深圳市建设工程质量检测中心 | Level and foundation pile static loading test system and method based on hydrostatic leveling |
| CN113323035A (en) * | 2021-05-31 | 2021-08-31 | 深圳华新国际建筑工程设计顾问有限公司 | Detection device and detection method for bearing capacity of foundation pile |
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