CN207148082U - A kind of experimental rig of influence of the analysis bored tunnel construction to building - Google Patents
A kind of experimental rig of influence of the analysis bored tunnel construction to building Download PDFInfo
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- CN207148082U CN207148082U CN201721182073.2U CN201721182073U CN207148082U CN 207148082 U CN207148082 U CN 207148082U CN 201721182073 U CN201721182073 U CN 201721182073U CN 207148082 U CN207148082 U CN 207148082U
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Abstract
The utility model discloses a kind of experimental rig for being used to analyze influence of the bored tunnel construction to building, including model support, reaction frame, hydraulic jack, steel emulation building foundation, tunneling mouth and data collecting system are reserved.Model support is a cube structure that skeleton is done by rigid material, bottom and surrounding around safety glass and do waterproof sealing processing, reaction frame is located at the top of model support and the left and right sides shares a bottom plate with model support, hydraulic jack connection reaction frame is fixed and steel emulation building foundation, there is reserved tunneling mouth in the positive front center position of safety glass, in the solid emulation construction material of safety glass；Emulating the building bottom of foundation and reserved tunneling mouth top surface in steel has data collecting system.Influence and surface buildingses load influence to tunnel excavation of the tunnel excavation to surface buildingses can be analyzed by data acquisition, analyze stratum changing rule, Optimizing construction measure.
Description
Technical field
The utility model patent is related to tunneling and underground engineering technical field, and be particularly suitable for use in analysis bored tunnel construction pair
In terms of the impact analysis of existing building, and in particular to a kind of experiment dress for analyzing the influence that bored tunnel is constructed to building
Put.
Background technology
China's subway construction in recent years is fast-developing, because constructing metro tunnel environment is complicated, is worn under bored tunnel, side is worn
The situation of existing building happens occasionally.To ensure the normal use of surface buildingses, while ensure construction safety, it is necessary to grasp
Influence situation of the tunnel excavation to building.Therefore, bored tunnel construction influences grinding for situation analysis method to existing building
Study carefully with important practice significance.At present, conventional analysis method mainly has theoretical analysis, Method for Numerical, empirical equation
Method, model testing method.But there is problems with the above method：
(1) theoretical analysis are generally basede on uniform dielectric it is assumed that not considering the influence of formation properties, have larger limitation
Property.
(2) method for numerical simulation analog result is often relevant with parameter value, and influence of the analog parameter to final result
Greatly, arbitrarily change parameter and be not often inconsistent with field condition.
(3) empirical formula method of main flow, such as Peck formula etc., by earth's surface no-load situation derive, it is necessary to and its
His theory is combined the calculating that could carry out having load earth's surface, and calculating is cumbersome, and error is larger, studies at present less.
(4) such research is less in model test method, and earth's surface loading is indefinite.
The content of the invention
The utility model patent is in order to solve the above problems, it is proposed that one kind is used to analyze bored tunnel construction to building
Influence experimental rig, the device can preferably simulate scene hair practice of construction situation, contribute to analyze constructing tunnel to building
Build the influence degree of thing.
To achieve the above object, the utility model patent adopts the following technical scheme that：
A kind of experimental rig for being used to analyze influence of the bored tunnel construction to building, including model support, reaction frame and
Hydraulic jack；The model support is a cube structure that skeleton is done by rigid material, and bottom and surrounding use tempering glass
Glass seals, open top；The reaction frame is the cube structure with top surface, bottom surface and left and right face, and the reaction frame is located at
The peripheral and model support of the model support shares a bottom plate；The top surface of the reaction frame by hydraulic jack with it is described
Steel emulation building basis connection inside model support；There is reserved tunnel face in the positive front center position of model support, in mould
The top surface on type frame internal steel emulation building basis fills up similar construction material with lower part；On steel emulation building basis
Bottom surface and reserved tunnel face peripheral location have data collecting system.
Further, the hydraulic jack is driven by automatic control system, it is possible to provide constant or non-constant pressure；
Further, the steel emulation building basis includes some groups, can simulate different base forms；
Further, the safety glass is handled by waterproof sealing；
Further, steel emulation building foundation include grillage foundation under isolated footing, strip footing, post,
The polytypes such as mat foundation, box foundation；
Further, the data collecting system includes strain acquisition system, multi-point displacement acquisition system, soil pressure collection
System, water pressure acquisition system.
Beneficial effect acquired by the utility model is：
1st, the load to stratum is built to Math Simulation Study On Pressure earth's surface by hydraulic jack, so as to measure building
Influence situation of the load to tunnel excavation.
2nd, by test datas such as the differential settlement amounts on gathering simulation basis, tunnel excavation is measured to building basis
Influence situation, and then speculate building destruction situation.
3rd, the influence situation that bored tunnel is constructed to existing building is more truly simulated, is had to analysis and research important
Practice significance.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the front view of this experimental rig；
Fig. 2 is the left view of this experimental rig；
Wherein, 1, model support (surrounding and bottom be safety glass), 2, reaction frame, 3, hydraulic jack, 4, steel emulation
Building foundation, 5, similar construction material, 6, reserved tunnel face, 7, data acquisition instrument.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Patent of the present invention is described further with embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of experimental rig for being used to analyze influence of the bored tunnel construction to building, including
Model support 1, reaction frame 2, hydraulic jack 3, steel emulation building foundation 4, similar construction material 5, reserve tunnel face 6, data
Acquisition system 7.
The model support 1 is a cube structure that skeleton is done by rigid material, and bottom and surrounding use safety glass
Sealing, and do waterproof sealing processing, open top；The reaction frame 2 is the cube knot with top surface, bottom surface and left and right face
Structure, front-back opening, the peripheral and model support 1 that the reaction frame 2 is located at the model support 1 share a bottom plate；It is described
The top of hydraulic jack 3 is fixedly connected with reaction frame 2, and the bottom of the hydraulic jack 3 and steel emulation building foundation 4 are solid
Fixed connection, has reserved tunnel face 6 in the positive front center position of safety glass, similar construction material is inserted inside safety glass
5；There is data collecting system 7 in basic 4 bottom surfaces of steel emulation building and the peripheral location of reserved tunnel face 6.
Further, the hydraulic jack 3 includes automatic control system, it is possible to provide constant or non-constant pressure；
Further, the steel emulation building basis 4 includes some groups, can simulate different base forms；
Further, steel emulation building foundation 4 be equipped with grillage foundation under isolated footing, strip footing, post,
The polytypes such as mat foundation, box foundation；
Further, the data collecting system 7 includes strain acquisition system, multi-point displacement acquisition system, and soil pressure is adopted
Collecting system, water pressure acquisition system.Carry out as needed embedding；
Further, the hydraulic jack 3 and the link position of reaction frame 2 are variable, and equipped with automatic control system
To provide constant or non-constant upper load；
Further, the shape of the reserved tunneling mouth 6 has multiple, can specifically be added according to the specific form of fracture in tunnel
Work.
Present apparatus specific work process is as follows：
The good model support 1 of mounting arrangements and reaction frame 2, model support 1 and reaction frame 2 are connected using hydraulic jack 3,
Similar construction material is equipped with according to on-site actual situations, and construction material is filled in model support 1, treats material in model support 1
After tending towards stability, equipment acquisition system 7 and steel emulation building foundation 4 are embedded in analog material, and it is anti-using being fixed on
Hydraulic jack 3 on power frame 2 applies constant or non-constant under the effect of its control system by a certain percentage according to actual conditions
Load, after data stabilization to be monitored, then excavated by the reserved simulation tunnel of tunneling mouth 6 on safety glass, digging process
The middle collection for paying attention to data.The present apparatus is built to stratum by hydraulic jack 3 to steel Math Simulation Study On Pressure earth's surface
Load, so as to measure influence situation of the building load to tunnel excavation；Differential settlement amount by gathering simulation basis etc.
Test data, influence situation of the tunnel excavation to building basis is measured, and then speculate building destruction situation；More truly mould
The influence situation that bored tunnel is constructed to existing building is intended, there is important practice significance to analysis and research.
It is not special to the present invention although above-mentioned the embodiment of patent of the present invention is described with reference to accompanying drawing
The limitation of sharp protection domain, one of ordinary skill in the art should be understood that on the basis of the technical scheme of patent of the present invention, ability
Field technique personnel need not pay the various modifications that creative work can make or deformation still protection scope of the present invention with
It is interior.
Claims (6)
- A kind of 1. experimental rig for being used to analyze influence of the bored tunnel construction to building, it is characterised in that including model support, Reaction frame and hydraulic jack；The model support is a cube structure that skeleton is done by rigid material, and bottom and surrounding are adopted Sealed with safety glass, open top；The reaction frame is the cube structure with top surface, bottom surface and left and right face, front-back Opening, the peripheral and model support that the reaction frame is located at the model support share a bottom plate, and counter-force top of support passes through liquid Pressure jack is connected with the steel emulation building basis inside the model support；Have in the positive front center position of model support pre- Tunnel face is stayed, similar construction material is filled up with lower part in the internal steel emulation building basis top surface of model support；In steel The emulation building bottom of foundation and reserved tunnel portal peripheral location have data collecting system.
- 2. a kind of experimental rig for being used to analyze influence of the bored tunnel construction to building as claimed in claim 1, it is special Sign is that the hydraulic jack is driven by automatic control system.
- 3. a kind of experimental rig for being used to analyze influence of the bored tunnel construction to building as claimed in claim 1, it is special Sign is that the steel emulation building basis includes some groups.
- 4. a kind of experimental rig for being used to analyze influence of the bored tunnel construction to building as claimed in claim 1, it is special Sign is that the safety glass is handled by waterproof sealing.
- 5. a kind of experimental rig for being used to analyze influence of the bored tunnel construction to building as claimed in claim 1, it is special Sign is that the emulation building foundation includes grillage foundation, mat foundation, box base under isolated footing, strip footing, post Plinth.
- 6. a kind of experimental rig for being used to analyze influence of the bored tunnel construction to building as claimed in claim 1, it is special Sign is that the data collecting system includes strain acquisition system, multi-point displacement acquisition system, soil pressure acquisition system, hydraulic pressure Power acquisition system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182073.2U CN207148082U (en) | 2017-09-15 | 2017-09-15 | A kind of experimental rig of influence of the analysis bored tunnel construction to building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182073.2U CN207148082U (en) | 2017-09-15 | 2017-09-15 | A kind of experimental rig of influence of the analysis bored tunnel construction to building |
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| CN207148082U true CN207148082U (en) | 2018-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956180A (en) * | 2018-07-17 | 2018-12-07 | 中铁十二局集团第二工程有限公司 | Tunnel excavation is simulated to the experimental rig and method for above covering effect on building |
-
2017
- 2017-09-15 CN CN201721182073.2U patent/CN207148082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956180A (en) * | 2018-07-17 | 2018-12-07 | 中铁十二局集团第二工程有限公司 | Tunnel excavation is simulated to the experimental rig and method for above covering effect on building |
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