CN201843152U - Simulation tester for construction and monitoring of deep foundation pit engineering - Google Patents
Simulation tester for construction and monitoring of deep foundation pit engineering Download PDFInfo
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- CN201843152U CN201843152U CN2010205676817U CN201020567681U CN201843152U CN 201843152 U CN201843152 U CN 201843152U CN 2010205676817 U CN2010205676817 U CN 2010205676817U CN 201020567681 U CN201020567681 U CN 201020567681U CN 201843152 U CN201843152 U CN 201843152U
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Abstract
The utility model provides a simulation tester for construction and monitoring of deep foundation pit engineering. The simulation tester comprises a model box and a plurality of monitors arranged in the model box; a soil body is arranged in the model box; an underground diaphragm wall is arranged in the soil body; a simulated building is arranged on the soil body; and the simulated building is arranged at one side of the underground diaphragm wall. The simulation tester can be used for simulating the internal force and the deformation rule of a building envelope in the foundation bit construction process and can be applied in the teaching test studies.
Description
Technical field
The utility model relates to a kind of deep-foundation pit engineering construction and monitoring simulation test device, is used for deep-foundation pit engineering construction and Study of Monitoring and teaching.
Background technology
Exploitation along with the underground space, the continuous intensification on the planning construction of each main cities subway of the whole nation and high level, super high rise building basis, the safety problem of deep foundation pit construction and deep foundation pit construction have caused that to the perturbed problem of surrounding enviroment people more and more pay close attention to.At present, also be not used in the simulation test device of Extra-Deep Foundation Pit structure design, construction and Study of Monitoring and teaching, existing bracing of foundation pit design theory is used for also needing under the complex geological condition to replenish checking by other means, and existing teaching link middle school student lack to deep foundation pit construction overall process and foundation pit construction dynamic process and to the visual understanding of surrounding enviroment influence.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of deep-foundation pit engineering construction and monitoring simulation test device, can be used for simulating foundation pit construction process space enclosing structure internal force and deformation rule.
In order to solve the problems of the technologies described above, deep-foundation pit engineering construction that the utility model provides and monitoring simulation test device, comprise a model casing and be located at several interior monitors of model casing, in the described model casing is the soil body, be provided with a diaphragm wall in the described soil body, the described soil body is provided with the simulant building thing, and described simulant building thing is positioned at a side of described diaphragm wall.
Preferably, the opposite side of described diaphragm wall is a deep foundation ditch.
Further, be provided with one or multi-channel support in the described deep foundation ditch.
Further, be adhesive with several corbels on the sidewall of described diaphragm wall, described corbel is positioned at described deep foundation ditch, be placed with collar tie beam on the described corbel, described support one end withstands on the described collar tie beam, and the described support other end withstands on the sidewall of model casing and places and pastes on the corbel of this model casing sidewall.
Further, described monitor comprises a plurality of micro pressure boxes, a plurality of electrical measurement displacement meter and a plurality of strain meter, described a plurality of micro pressure box is located on the sidewall of diaphragm wall and is positioned at the soil body, described a plurality of electrical measurement displacement meter is located at respectively on the two side of the wall top place of diaphragm wall and simulant building thing, described a plurality of strain meters be located at respectively on the diaphragm wall with described support on.
Further, the same horizontal plane of described deep foundation ditch is provided with one or more supports.
Further, described each support comprise support principal piece, be located at support principal piece one end and with support diagonal brace section that principal piece is angle, be located at the fine setting section that supports the principal piece other end.
Further, described micro pressure box is positioned on the axis of described support principal piece.
Further, the sidewall perpendicular to diaphragm wall is a transparency glass plate on the described model casing.
Deep-foundation pit engineering of the present utility model construction and monitoring simulation test device can be used for simulating foundation pit construction process space enclosing structure internal force and deformation rule and to the influence of surrounding buildings, be used for the researchs of underground construction research, structure design and teaching test.
Description of drawings
Fig. 1 is the schematic diagram of the utility model deep foundation pit construction and monitoring simulation test device.
Fig. 2 is A-A sectional view among Fig. 1 (support on the same horizontal plane).
Fig. 3 is A-A sectional view among Fig. 1 (two supports on the same horizontal plane).
The structural representation of Fig. 4 for supporting.
Fig. 5 is a B-B sectional view among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing scheme of the present utility model is further specified.
Deep-foundation pit engineering construction as shown in Figure 1 and monitoring simulation test device, comprise a model casing 10 and several monitors that are located in the model casing 10, in the model casing 10 is the soil body 1, be provided with a diaphragm wall 9 in the soil body 1, the soil body 1 is provided with simulant building thing 11, simulant building thing 11 is positioned at a side of diaphragm wall 9, the opposite side of diaphragm wall is a deep foundation ditch 16, also be provided with one or multi-channel support 7 in the deep foundation ditch 16, as shown in Figure 5, be adhesive with several corbels 6 on the sidewall of diaphragm wall 7, can on diaphragm wall 9, locate to paste corbel 6 at a certain distance, corbel 6 adopts the simulation of fritter organic glass, corbel 6 is positioned at deep foundation ditch 16, is placed with collar tie beam 4 on the corbel 6, supports 7 one ends and withstands on the collar tie beam 4, support on the sidewall that 7 other ends withstand on model casing 10, and place and paste on the corbel 6 of this model casing sidewall.
Wherein, monitor comprises a plurality of micro pressure boxes 8, a plurality of electrical measurement displacement meter 2 and a plurality of strain meter 5, a plurality of micro pressure boxes 8 are located on the sidewall of diaphragm wall 9 and are positioned at the soil body 1, can evenly arrange at the different depth place of diaphragm wall 9, be used to monitor the different buried depth place and act on water and soil pressure on the diaphragm wall 9; Be located at the electrical measurement displacement meter 2 at the wall top place of diaphragm wall 9, be used for the monitoring of wall top displacement, be located at the electrical measurement displacement meter 2 on the two side of simulant building thing 11, be used for monitoring the differential settlement that its deep foundation pit construction process produces this simulant building thing 11; A plurality of strain meters 5 are located on the diaphragm wall 9 respectively and support on 7, are used to monitor the stress of diverse location.
As shown in Figures 2 and 3, the same horizontal plane of deep foundation ditch 16 is provided with one or more supports 7, as shown in Figure 4, each support 7 comprise support principal piece 13, be located at support principal piece 13 1 ends and with support diagonal brace section 15 that principal piece 13 is angle, be located at the fine setting section 14 that supports principal piece 13 other ends, finely tune between section 14 and the support principal piece 13 by being threaded, here the support 7 of adopting length to finely tune has made things convenient for installation.The form of each support can adopt different supporting section sizes, simultaneously, supports 7 and can carry out up and down and move left and right.
Sidewall perpendicular to diaphragm wall 9 on the model casing 10 is a transparency glass plate 12, is convenient to observe condition of construction.
On the simulant building thing, can be by increasing or deduct the counterweight 3 of some, simulating different building loads, thus the influence that in the monitoring foundation pit construction process different building settlements is produced.
The method that adopts deep-foundation pit engineering construction of the present utility model and monitoring simulation test device to test is as follows:
(1) monitoring instrument is installed, strain meter 5 is installed in respectively in diaphragm wall 9 and the support 7, micro pressure box 8 is installed on the diaphragm wall 9; Electrical measurement displacement meter 2 is installed in respectively on the two side of the wall top place of diaphragm wall 9 and simulant building thing 11;
(2) soil body 1 is inserted in the model casing 10, and diaphragm wall 9 is vertically put into the design attitude of model casing 10;
(3) the smooth soil body, with scoop the soil body is excavated for one jiao, form deep foundation ditch 16, and corbel 6, collar tie beam 4 progressively are installed in digging process, are supported 7, carry out data acquisition simultaneously, digging process combines with data acquisition, and writes down the time that good each operating mode begins, so that carry out next step data analysis;
(4) after test is finished, carry out data according to the basic principle of instrument and handle, draw the situation of change of each monitor value with operating mode;
(6) when carrying out space enclosing structure optimization test, by the number of adjustment support and the position of support, as shown in Figures 2 and 3, carry out two or more sets tests, and the result of contrast test, according to structural safety, easy construction, to little, the cost-effective principle of ambient influnence, select optimum design scheme.
Experimental rig of the present utility model is mainly used in:
(1) research of the internal force of space enclosing structure in the deep foundation pit construction process and the water and soil pressure Changing Pattern on the enclosure wall, deep foundation pit construction can be carried out to the research of the ambient influnence of periphery in underground construction research aspect;
(2) safety verification of space enclosing structure can be carried out in structure design aspect, can also carry out space enclosing structure optimization by the comprehensive contrast of experimental data;
(3) teaching test aspect makes the student to deep foundation pit construction and observation process more deep understanding intuitively be arranged.
Deep-foundation pit engineering construction and monitoring simulation test device are in above-mentioned deep foundation ditch model, deep-foundation pit engineering is reduced to plane strain problems, building around diaphragm wall, support, the foundation ditch all uses suitable material according to the theory of similarity, adopts hollow plastic production as corbel, support etc.Each displacement meter, strain meter and micro pressure box have then carried out the monitoring simulation to the top displacement of underground continuous wall, deep layer deflection, internal force and water and soil pressure and horizontal supporting shaft power, surrounding building differential settlement respectively.
Deep-foundation pit engineering of the present utility model construction and monitoring simulation test device can be used for simulating foundation pit construction process space enclosing structure internal force and deformation rule, and to the influence of surrounding enviroment.Can compare test by adjusting the cross section and the supporting point position that support, carry out space enclosing structure optimization and safety verification in the actual design.Simultaneously, can also be used for the test teaching of foundation pit construction and monitoring, make the student have perception to be familiar with intuitively, improve monitoring and the managerial ability of student base pit engineering to Extra-Deep Foundation Pit structure stress feature, design principle and construction technology.
Claims (9)
1. a deep-foundation pit engineering is constructed and the monitoring simulation test device, it is characterized in that: comprise a model casing (10) and be located at several interior monitors of model casing (10), in the described model casing (10) is the soil body (1), be provided with a diaphragm wall (9) in the described soil body (1), the described soil body (1) is provided with simulant building thing (11), and described simulant building thing (11) is positioned at a side of described diaphragm wall (9).
2. deep-foundation pit engineering construction according to claim 1 and monitoring simulation test device, it is characterized in that: the opposite side of described diaphragm wall (9) is deep foundation ditch (16).
3. deep-foundation pit engineering construction according to claim 2 and monitoring simulation test device is characterized in that: be provided with one or multi-channel support (7) in the described deep foundation ditch (16).
4. deep-foundation pit engineering construction according to claim 3 and monitoring simulation test device, it is characterized in that: be adhesive with several corbels (6) on the sidewall of described diaphragm wall (7), described corbel (6) is positioned at described deep foundation ditch (16), be placed with collar tie beam (4) on the described corbel (6), described support (7) one ends withstand on the described collar tie beam (4), and described support (7) other end withstands on the sidewall of model casing (10) and places and pastes on the corbel (6) of this model casing (10) sidewall.
5. deep-foundation pit engineering construction according to claim 4 and monitoring simulation test device, it is characterized in that: described monitor comprises a plurality of micro pressure boxes (8), a plurality of electrical measurement displacement meter (2) and a plurality of strain meter (5), described a plurality of micro pressure boxes (8) are located on the sidewall of diaphragm wall (9) and are positioned at the soil body (1), described a plurality of electrical measurement displacement meters (2) are located at respectively on the two side of the wall top place of diaphragm wall (9) and simulant building thing (11), described a plurality of strain meters (5) be located at respectively diaphragm wall (9) go up with described support (7) on.
6. according to any described deep-foundation pit engineering construction and monitoring simulation test device in the claim 3 to 5, it is characterized in that: the same horizontal plane of described deep foundation ditch (16) is provided with one or more supports (7).
7. deep-foundation pit engineering according to claim 6 construction and monitoring simulation test device is characterized in that: described each support (7) comprise support principal piece (13), be located at support principal piece (13) one ends and with support diagonal brace section (15) that principal piece (13) is angle, be located at the fine setting section (14) that supports principal piece (13) other end.
8. Foundation Pit Construction according to claim 7 and monitoring simulation test device, it is characterized in that: described micro pressure box (8) is positioned on the axis of described support principal piece (13).
9. deep-foundation pit engineering construction according to claim 8 and monitoring simulation test device, it is characterized in that: the sidewall that described model casing (10) is gone up perpendicular to diaphragm wall (9) is transparency glass plate (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205676817U CN201843152U (en) | 2010-10-19 | 2010-10-19 | Simulation tester for construction and monitoring of deep foundation pit engineering |
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| CN2010205676817U CN201843152U (en) | 2010-10-19 | 2010-10-19 | Simulation tester for construction and monitoring of deep foundation pit engineering |
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| CN201843152U true CN201843152U (en) | 2011-05-25 |
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| CN2010205676817U Expired - Fee Related CN201843152U (en) | 2010-10-19 | 2010-10-19 | Simulation tester for construction and monitoring of deep foundation pit engineering |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828531A (en) * | 2012-09-11 | 2012-12-19 | 同济大学 | System and construction method for realizing digging and measuring of diaphragm wall trench in geotechnical centrifugal model test |
| CN102943459A (en) * | 2012-12-04 | 2013-02-27 | 中铁二十一局集团有限公司 | Remote smart monitoring and three-dimensional early warning method and system for deformation stability of deep foundation pit |
| CN103628510A (en) * | 2013-12-17 | 2014-03-12 | 上海岩土工程勘察设计研究院有限公司 | Underground diaphragm wall model for test of underground diaphragm wall defect detection method |
| CN103711153A (en) * | 2014-01-20 | 2014-04-09 | 山东大学 | Steel brace simulation device in deep foundation pit construction mechanical model test |
| CN103821183A (en) * | 2012-11-16 | 2014-05-28 | 同济大学 | Testing apparatus for simulating phenomenon and law of soil heave-piping failure |
| CN104099953A (en) * | 2013-04-08 | 2014-10-15 | 同济大学 | Centrifugal model testing device for simulating pressure water head change and stability of foundation pit |
| CN104110045A (en) * | 2014-07-08 | 2014-10-22 | 浙江华展工程研究设计院有限公司 | Pipe pile perpendicularity tester |
| CN105040754A (en) * | 2015-08-03 | 2015-11-11 | 浙江大学 | Device for testing limited soil mass rigid retaining wall soil pressure model |
| CN105242028A (en) * | 2015-11-11 | 2016-01-13 | 中国矿业大学 | Model test device of soil mass stratification and sedimentation caused by high building load and underground water pumping and infusing and test method |
| CN105672379A (en) * | 2016-04-01 | 2016-06-15 | 浙江大学 | Foundation pit excavation model test device under dynamic artesian water action |
| CN105780828A (en) * | 2016-04-29 | 2016-07-20 | 石家庄铁道大学 | Model test device for influences of open cut foundation pit on nearby building foundation and operation method |
| CN105842421A (en) * | 2016-04-01 | 2016-08-10 | 浙江大学 | Foundation pit model testing apparatus capable of simulating excavation process |
| CN106049560A (en) * | 2016-05-31 | 2016-10-26 | 浙江理工大学 | Simulation model device for down digging construction of adding layer of existing basement |
| CN106193139A (en) * | 2016-08-31 | 2016-12-07 | 盐城工学院 | A kind of foundation pit construction test device to Influence of Pile Foundation that borders on the river |
| CN107119731A (en) * | 2017-06-12 | 2017-09-01 | 上海理工大学 | Foundation ditch group excavates the model test apparatus to close to buildings deformation effect |
| CN109555170A (en) * | 2018-06-19 | 2019-04-02 | 上海市建工设计研究总院有限公司 | Excavation of foundation pit is on the indoor simulation device and method of Multi-tower deformation influence |
| CN110805076A (en) * | 2019-11-27 | 2020-02-18 | 福建工程学院 | Test device and method for simulating reinforcement of passive area of foundation pit |
| CN113089624A (en) * | 2021-03-29 | 2021-07-09 | 天津大学 | Adjacent foundation pit asynchronous excavation simulation test device and test method |
| CN115897680A (en) * | 2022-11-23 | 2023-04-04 | 中建八局第三建设有限公司 | Servo steel shotcrete foundation ditch model test device |
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2010
- 2010-10-19 CN CN2010205676817U patent/CN201843152U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828531A (en) * | 2012-09-11 | 2012-12-19 | 同济大学 | System and construction method for realizing digging and measuring of diaphragm wall trench in geotechnical centrifugal model test |
| CN102828531B (en) * | 2012-09-11 | 2014-10-22 | 同济大学 | System and construction method for realizing digging and measuring of diaphragm wall trench in geotechnical centrifugal model test |
| CN103821183B (en) * | 2012-11-16 | 2016-02-17 | 同济大学 | A kind of soil body of simulating is dashed forward and is gushed the test unit of breakoff phenomenon and rule |
| CN103821183A (en) * | 2012-11-16 | 2014-05-28 | 同济大学 | Testing apparatus for simulating phenomenon and law of soil heave-piping failure |
| CN102943459A (en) * | 2012-12-04 | 2013-02-27 | 中铁二十一局集团有限公司 | Remote smart monitoring and three-dimensional early warning method and system for deformation stability of deep foundation pit |
| CN102943459B (en) * | 2012-12-04 | 2015-03-18 | 中铁二十一局集团有限公司 | Remote smart monitoring and three-dimensional early warning method and system for deformation stability of deep foundation pit |
| CN104099953A (en) * | 2013-04-08 | 2014-10-15 | 同济大学 | Centrifugal model testing device for simulating pressure water head change and stability of foundation pit |
| CN103628510A (en) * | 2013-12-17 | 2014-03-12 | 上海岩土工程勘察设计研究院有限公司 | Underground diaphragm wall model for test of underground diaphragm wall defect detection method |
| CN103711153A (en) * | 2014-01-20 | 2014-04-09 | 山东大学 | Steel brace simulation device in deep foundation pit construction mechanical model test |
| CN104110045A (en) * | 2014-07-08 | 2014-10-22 | 浙江华展工程研究设计院有限公司 | Pipe pile perpendicularity tester |
| CN105040754A (en) * | 2015-08-03 | 2015-11-11 | 浙江大学 | Device for testing limited soil mass rigid retaining wall soil pressure model |
| CN105040754B (en) * | 2015-08-03 | 2017-01-11 | 浙江大学 | Device for testing limited soil mass rigid retaining wall soil pressure model |
| CN105242028A (en) * | 2015-11-11 | 2016-01-13 | 中国矿业大学 | Model test device of soil mass stratification and sedimentation caused by high building load and underground water pumping and infusing and test method |
| CN105672379A (en) * | 2016-04-01 | 2016-06-15 | 浙江大学 | Foundation pit excavation model test device under dynamic artesian water action |
| CN105842421A (en) * | 2016-04-01 | 2016-08-10 | 浙江大学 | Foundation pit model testing apparatus capable of simulating excavation process |
| CN105780828A (en) * | 2016-04-29 | 2016-07-20 | 石家庄铁道大学 | Model test device for influences of open cut foundation pit on nearby building foundation and operation method |
| CN105780828B (en) * | 2016-04-29 | 2018-01-23 | 石家庄铁道大学 | The model test apparatus and operating method that open-cut foundation ditch influences on adjacent building basis |
| CN106049560A (en) * | 2016-05-31 | 2016-10-26 | 浙江理工大学 | Simulation model device for down digging construction of adding layer of existing basement |
| CN106193139A (en) * | 2016-08-31 | 2016-12-07 | 盐城工学院 | A kind of foundation pit construction test device to Influence of Pile Foundation that borders on the river |
| CN107119731A (en) * | 2017-06-12 | 2017-09-01 | 上海理工大学 | Foundation ditch group excavates the model test apparatus to close to buildings deformation effect |
| CN109555170A (en) * | 2018-06-19 | 2019-04-02 | 上海市建工设计研究总院有限公司 | Excavation of foundation pit is on the indoor simulation device and method of Multi-tower deformation influence |
| CN110805076A (en) * | 2019-11-27 | 2020-02-18 | 福建工程学院 | Test device and method for simulating reinforcement of passive area of foundation pit |
| CN110805076B (en) * | 2019-11-27 | 2024-05-03 | 福建工程学院 | Test device and method for simulating reinforcement of passive area of foundation pit |
| CN113089624A (en) * | 2021-03-29 | 2021-07-09 | 天津大学 | Adjacent foundation pit asynchronous excavation simulation test device and test method |
| CN113089624B (en) * | 2021-03-29 | 2022-10-11 | 天津大学 | Adjacent foundation pit asynchronous excavation simulation test device and test method |
| CN115897680A (en) * | 2022-11-23 | 2023-04-04 | 中建八局第三建设有限公司 | Servo steel shotcrete foundation ditch model test device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20131019 |