CN205712226U - The model test apparatus that adjacent building basis is affected by open-cut foundation ditch - Google Patents
The model test apparatus that adjacent building basis is affected by open-cut foundation ditch Download PDFInfo
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- CN205712226U CN205712226U CN201620377249.9U CN201620377249U CN205712226U CN 205712226 U CN205712226 U CN 205712226U CN 201620377249 U CN201620377249 U CN 201620377249U CN 205712226 U CN205712226 U CN 205712226U
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Abstract
The utility model discloses the model test apparatus that adjacent building basis is affected by a kind of open-cut foundation ditch, relate to foundation construction technical field.This utility model includes that Work condition analogue framework, building analog systems, comprehensive monitoring analyze system, and Work condition analogue framework includes structural framing and testing stand base；Building analog systems is that two components are located on testing stand base, often group building analog systems includes simulating Rock And Soil, tank, lifting water tank, prefabricated pile basis, load, lifting water tank connects with tank, tank connects with simulation Rock And Soil, prefabricated pile basis extend in simulation Rock And Soil, and load is placed on prefabricated pile basis；Comprehensive monitoring is analyzed system and is included being embedded in the displacement inductive head in simulation Rock And Soil and coupled comprehensive monitoring analysing terminal.The real time contrast utilizing this utility model can carry out organizing different parameters analyzes more, is greatly improved test efficiency, makes result of the test more universal representative, and scientific research and technology for excavation of foundation pit provide helpful reference.
Description
Technical field
This utility model relates to foundation construction technical field, the model test apparatus that adjacent building basis is affected by a kind of open-cut foundation ditch.
Background technology
The current situation of traffic day by day blocked up along with large-and-medium size cities gradually increases the weight of, and building of subway becomes drive urban economy development, alleviates traffic pressure, pulls the important transport hub of commercial economy.
The construction of subway clearly dig with tunneling point, subsurface excavation method builds that subway cost is relatively big, difficulty of construction high, precision controlling difficulty, by contrast, the advantage of cut and cover method is just highlighted, and constructs convenient, safety coefficient is high, cost is relatively small, but the thing followed, and subway is built in open cut certainly will affect that traffic above-ground is unobstructed, affect surface structures stably by excavated pavement.Therefore, research open cut of subway station has great importance adjacent to the impact of existing building pile foundation.
Traditional subway station experimental study form is the most single, monitoring difficulty is higher in real time, and experiment process is complex, and cannot accomplish that the real time contrast of various working analyzes, this brings bigger obstruction for subway foundation pit stability study, it is impossible to obtain comprehensive comprehensively general result.
Utility model content
Technical problem to be solved in the utility model is to provide the model test apparatus that adjacent building basis is affected by a kind of open-cut foundation ditch, assembled structure, there is relative analysis function, monitoring means is advanced, and possess the function that various working is carried out simultaneously, real time contrast's property analysis of test different parameters be can carry out organizing more, test efficiency and precision substantially increased, making result of the test more universal representative, scientific research and technology for excavation of subway foundation pit provide helpful reference and guidance.
For solving above-mentioned technical problem, technical solution adopted in the utility model is: the model test apparatus that adjacent building basis is affected by a kind of open-cut foundation ditch, system is analyzed including Work condition analogue framework, building analog systems, comprehensive monitoring, Work condition analogue framework includes structural framing and testing stand base, and structural framing is looped around the surrounding of testing stand base；Building analog systems is two groups, two components are located on testing stand base, often group building analog systems includes simulating Rock And Soil, tank, lifting water tank, prefabricated pile basis, load, simulation Rock And Soil is placed on testing stand base, lifting water tank connects with tank, tank connects with simulation Rock And Soil, and prefabricated pile basis extend in simulation Rock And Soil, and load is placed on prefabricated pile basis；Described comprehensive monitoring is analyzed system and is included displacement inductive head and comprehensive monitoring analysing terminal, and displacement inductive head is embedded in simulation Rock And Soil, is connected with comprehensive monitoring analysing terminal by pre-buried wiring.
Further technical scheme, described two groups of building analog systems mirror images set up separately on testing stand base.
Further technical scheme, the tank in two groups of building analog systemss is adjacent, leaves the space of placed comprehensive monitoring analysing terminal between two tanks, and lifting water tank lifts along the track of sink outer walls, and the bottom of lifting water tank is provided with the water pipe connected with bottom of gullet.
Further technical scheme, it is provided with substrate sandwich between testing stand base and simulation Rock And Soil, described wiring makes wiring level turn vertical trend by turnover roller or vertical turning is horizontally orientated to, and wherein, the wiring being horizontally orientated to laid along testing stand base is arranged in substrate sandwich.
Further technical scheme, the side that tank is affixed with simulation Rock And Soil is provided with some permeable holes.
Use and have the beneficial effects that produced by technique scheme:
1) simple operation, Stability Analysis of Structures, the basis of existing building and agent structure can be carried out accurate simulation, and controlling water level absolute altitude can be carried out by adjusting water tank, carry out level of ground water simulation；
2) building analog systems is for simulating basis and the upper body structure of existing building, loads, by changing, the influence of foundation excavation existing building basis contrast test that can carry out under different load mode, different level of ground water；
3) comprehensive monitoring analyze system can comprehensively analyze excavation of subway foundation pit on existing building basis level, the isoparametric impact of vertical displacement, and can carry out organizing the correction data analysis that test is carried out simultaneously more, the most convenient, draw general result, there is certain representative and reference value, provide theoretical reference for construction.
Accompanying drawing explanation
Fig. 1 is the cutting structural representation of one embodiment of this utility model；
In figure: 1, structural framing；2, substrate sandwich；3, testing stand base；4, simulation Rock And Soil；5, prefabricated pile basis；6, load；7, displacement inductive head；8, wiring；9, turnover roller；10, comprehensive monitoring analysing terminal；11, lifting water tank；12, tank.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Structure of the present utility model is as shown in Figure 1, system is analyzed including Work condition analogue framework, building analog systems, comprehensive monitoring, Work condition analogue framework includes structural framing 1 and testing stand base 3, and structural framing 1 is looped around the surrounding of testing stand base 3, forms the enclosing structure that surrounding seals；Building analog systems is two groups, two groups of mirror images set up separately on testing stand base 3, often group building analog systems includes simulating Rock And Soil 4, tank 12, lifting water tank 11, prefabricated pile basis 5, load 6, simulation Rock And Soil 4 is placed on testing stand base 3, lifting water tank 11 connects with tank 12, and the side that tank 12 and simulation Rock And Soil 4 are affixed is provided with some permeable holes, and tank 12 connects with simulation Rock And Soil 4, prefabricated pile basis 5 extend in simulation Rock And Soil 4, and load 6 is placed on prefabricated pile basis 5；Comprehensive monitoring is analyzed system and is included displacement inductive head 7 and comprehensive monitoring analysing terminal 10, and displacement inductive head 7 is embedded in simulation Rock And Soil 4, is connected with comprehensive monitoring analysing terminal 10 by pre-buried wiring 8.Tank 12 in two groups of building analog systemss is adjacent, leaves the space of placed comprehensive monitoring analysing terminal 10 between two tanks 12, and lifting water tank 11 lifts along the track of tank 12 outer wall, and the bottom of lifting water tank 11 is provided with and the water pipe connected bottom tank 12.
Wherein, Work condition analogue framework is used for simulating ground geological environment in situ；Building analog systems, for simulating basis and the upper body structure of existing building, loads, by changing, the test simulation that can carry out under different load mode；Comprehensive monitoring analyzes system can comprehensively analyze excavation of subway foundation pit to the level on existing building basis, the isoparametric impact of vertical displacement, and can carry out organizing more and test the correction data analysis simultaneously carried out, the most convenient.
Work condition analogue framework is made up of structural framing, lifting water tank, the simulation part such as Rock And Soil, substrate sandwich, free structure framework is for ensureing the Stability Analysis of Structures of simulation Rock And Soil, lifting water tank and other pilot systems, the test material composition that according to simulation Rock And Soil, on-the-spot Geotechnical Parameter is developed after similar proportioning, at utmost simulated field operating mode, lifting water tank is connected with bottom of gullet, can be by the water level in lifting water tank position adjustment tank, and then simulated groundwater position；Substrate sandwich is free space below Rock And Soil, for monitoring the bottom traction of wiring.
Building analog systems is made up of prefabricated pile basis, load etc., and prefabricated pile basis is used for simulating existing building pile foundation, and load is used for simulating superstructure agent structure, by adjusting the test under load weight and then the different load mode of simulation.
Comprehensive monitoring is analyzed system and is made up of the device such as high precision displacement inductive head, horizontal wiring, vertical wiring, turnover roller and comprehensive monitoring analysing terminal, displacement inductive head, horizontal wiring and turnover roller composition fixed pulley system, the level caused by excavation of foundation pit and vertical displacement are transferred to monitor analysing terminal, displacement parameter is converted to the signal of telecommunication, test data will be organized more and integrate contrast, draw conclusion (of pressure testing), there is certain representative and universality.
Operational approach of the present utility model, comprises the following steps:
A, configuration and the simulation Rock And Soil 4 of foundation ditch analog material, build building analog systems, pre-buried displacement inductive head 7, wiring 8 in simulation Rock And Soil 4 simultaneously, and wiring 8 is caused comprehensive monitoring analysing terminal 10, simultaneously by pre-buried for prefabricated pile basis 5 to design appointment position；
B, the prefabricated pile basis 5 of both sides are respectively provided with the load 6 of Different Weight, are simulated the excavation simulation of Rock And Soil 4, and the existing foundation level two groups of tests caused and vertical displacement carry out Comprehensive Comparison, complete the contrast model test under different load 6 pattern；
C, again filling simulation Rock And Soil 4, the weight making both sides load 6 is identical, adjusts side tank height, controlling groundwater level, carries out excavation of foundation pit research and application data, complete identical building basic displacement contrast test under having water and anhydrous state；
The discrepancy in elevation of D, design both sides load 6 and both sides lifting water tank 11, carries out different load case, differently descends the excavation of foundation pit displacement monitoring orthogonal test in the case of water level elevation, by the relative analysis of comprehensive monitoring analysing terminal 10.
Work condition analogue framework in this utility model is used for simulating ground geological environment in situ；Building analog systems, for simulating basis and the upper body structure of existing building, loads, by changing, the test simulation that can carry out under different load mode；Comprehensive monitoring analyze system can comprehensively analyze excavation of subway foundation pit on existing building basis level, the isoparametric impact of vertical displacement, and can carry out organizing the correction data analysis that test is carried out simultaneously more, the most convenient, draw general result, there is certain representative and reference value, provide theoretical reference for construction.
Claims (5)
1. the model test apparatus that adjacent building basis is affected by an open-cut foundation ditch, it is characterized in that, system is analyzed including Work condition analogue framework, building analog systems, comprehensive monitoring, Work condition analogue framework includes structural framing (1) and testing stand base (3), and structural framing (1) is looped around the surrounding of testing stand base (3)；Building analog systems is two groups, two components are located on testing stand base (3), often group building analog systems includes simulating Rock And Soil (4), tank (12), lifting water tank (11), prefabricated pile basis (5), load (6), simulation Rock And Soil (4) is placed on testing stand base (3), lifting water tank (11) connects with tank (12), tank (12) connects with simulation Rock And Soil (4), prefabricated pile basis (5) extend in simulation Rock And Soil (4), and load (6) is placed on prefabricated pile basis (5)；Described comprehensive monitoring is analyzed system and is included displacement inductive head (7) and comprehensive monitoring analysing terminal (10), and displacement inductive head (7) is embedded in simulation Rock And Soil (4), is connected with comprehensive monitoring analysing terminal (10) by pre-buried wiring (8).
The model test apparatus that adjacent building basis is affected by open-cut foundation ditch the most according to claim 1, it is characterised in that described two groups of building analog systems mirror images set up separately on testing stand base (3).
The model test apparatus that adjacent building basis is affected by open-cut foundation ditch the most according to claim 1, it is characterized in that, tank (12) in two groups of building analog systemss is adjacent, the space of placed comprehensive monitoring analysing terminal (10) is left between two tanks (12), lifting water tank (11) lifts along the track of tank (12) outer wall, and the bottom of lifting water tank (11) is provided with the water pipe connected with tank (12) bottom.
The model test apparatus that adjacent building basis is affected by open-cut foundation ditch the most according to claim 1, it is characterized in that, it is provided with substrate sandwich (2) between testing stand base (3) and simulation Rock And Soil (4), described wiring (8) makes wiring (8) level turn vertical trend by turnover roller (9) or vertical turning is horizontally orientated to, wherein, the wiring (8) being horizontally orientated to laid along testing stand base (3) is arranged in substrate sandwich (2).
The model test apparatus that adjacent building basis is affected by open-cut foundation ditch the most according to claim 1, it is characterised in that the side that tank (12) is affixed with simulation Rock And Soil (4) is provided with some permeable holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620377249.9U CN205712226U (en) | 2016-04-29 | 2016-04-29 | The model test apparatus that adjacent building basis is affected by open-cut foundation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620377249.9U CN205712226U (en) | 2016-04-29 | 2016-04-29 | The model test apparatus that adjacent building basis is affected by open-cut foundation ditch |
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| Publication Number | Publication Date |
|---|---|
| CN205712226U true CN205712226U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620377249.9U Withdrawn - After Issue CN205712226U (en) | 2016-04-29 | 2016-04-29 | The model test apparatus that adjacent building basis is affected by open-cut foundation ditch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-04-29 CN CN201620377249.9U patent/CN205712226U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20180123 |
|
| AV01 | Patent right actively abandoned |