CN207436064U - Deep basal pit secondary excavation and timbering construction structure - Google Patents
Deep basal pit secondary excavation and timbering construction structure Download PDFInfo
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- CN207436064U CN207436064U CN201720575624.5U CN201720575624U CN207436064U CN 207436064 U CN207436064 U CN 207436064U CN 201720575624 U CN201720575624 U CN 201720575624U CN 207436064 U CN207436064 U CN 207436064U
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- foundation pit
- support unit
- backplate
- support
- pit
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Abstract
A kind of deep basal pit secondary excavation and timbering construction structure, including：For setting into a foundation pit to be supported the madial wall of a foundation pit foundation pit guard assembly of protection；For setting into secondary foundation pit to be supported the madial wall of secondary foundation pit the secondary foundation pit guard assembly of protection, second support unit is sequentially connected and is formed with the support protective frame of tubular structure, in being provided with casing on the medial surface of support protective frame, metal packing is provided with by casing, the top of the first support unit is by setting connecting rod and the top of the second support unit to be connected.Pass through said structure design, deep basal pit secondary excavation and timbering construction structure provided by the utility model can be carried out at the same time protection to a foundation pit and secondary foundation pit simultaneously, its protection effect is excellent, and the utility model also has many advantages, such as simple in structure, is easy to build.
Description
Technical field
The utility model is related to architectural engineering safeguard technical fields, more specifically, more particularly to a kind of deep basal pit
Secondary excavation and timbering construction structure.
Background technology
When building foundation pit is constructed, to ensure construction safety, cave in accident is prevented, it is necessary to the building foundation pit of excavation
Take supporting measure.Building foundation pit supporting design and construction should consider engineering geology and hydrogeologic condition, foundation pit type,
Excavation of foundation pit digs the requirement to foundation pit side-wall displacement of depth, Yield rainfall relation condition, surrounding enviroment, foundation pit week side load, construction seasons,
The factors such as supporting construction service life accomplish rational design, well construction, economic security.
With the construction of a large amount of skyscrapers and the exploitation of the underground space, and also to meet high-rise construction earthquake resistance and resist
The structural requirements such as wind, basement develop to multilayer by one layer, and corresponding excavation of foundation pit depth is also increasing.With foundation depth
Increasing, the probability of supporting construction unstability is also increasing in foundation pit.At present, base pit engineering low success rate of problem in China's is abnormal
Prominent, each big city has built foundation pit the example of engineering accident occur.There is deeper deep basal pit when deep basal pit faces side one side
When, and deeper surrounding deep foundation pit is again close to important building, so facing this earth excavation of side one side and supporting should adopt
Rational construction method is taken, and does not influence other deep basal pit large area foundation constructions, currently without effective construction method.
Utility model content
(1) technical problem
In conclusion how to provide a kind of support system of deep basal pit side secondary excavation, become people in the art
Member's urgent problem to be solved.
(2) technical solution
The utility model provides a kind of deep basal pit secondary excavation and timbering construction structure, which includes：
For setting into a foundation pit to be supported the madial wall of a foundation pit protection of foundation pit of protection
Component, a foundation pit guard assembly include the first support unit of truss structure, in the outer of first support unit
Side is provided with the first backplate for being in contact with a foundation pit madial wall；
For setting into secondary foundation pit to be supported the madial wall of secondary foundation pit the protection of the secondary foundation pit of protection
Component, the secondary foundation pit guard assembly include the second support unit of truss structure, in the outer of second support unit
Side is provided with the second backplate for being in contact with secondary foundation pit madial wall, and installation is provided on second support unit
Set, is provided with to be inserted into secondary foundation pit through second backplate, on the lateral surface of the secondary foundation pit guard assembly
Setscrew component in madial wall soil, the setscrew component include expansion sleeve and bolt, and the bolt passes through
The installation set is connected with the expansion sleeve, and second support unit is provided with multiple, whole second supports
Unit is sequentially connected and is formed with the support protective frame of tubular structure, in being provided with set on the medial surface of the support protective frame
Pipe is provided with metal packing by casing, and the top of first support unit is by setting connecting rod to support list with described second
The top connection of member.
Preferably, first support unit is steel truss structure, and second support unit is steel truss structure,
The connecting rod is steel pipe, and the end of the connecting rod is consolidated by flange and first support unit and second support unit
Fixed connection.
Preferably, first backplate is steel plate, and first backplate, which is bolted, is arranged at first support
On unit；Second backplate is steel plate, and second backplate, which is bolted, to be arranged on second support unit.
(3) advantageous effect
Based on said structure design, a foundation pit guard assembly includes the first support unit of truss structure, in first
The lateral surface of support unit is provided with the first backplate for being in contact with a foundation pit madial wall.First support unit uses steel
Truss structure processed has higher support protection intensity, while its total quality is relatively low, avoids the first support unit to once
The ground of foundation pit has an impact.First support unit is arranged in a foundation pit, is arranged on a foundation pit close to secondary foundation pit
Side wall on, be bolted on the side that is contacted in the first support unit with the madial wall of a foundation pit and be provided with the first shield
Plate increases the contact area of the first support unit and a foundation pit madial wall by the first backplate, so can be to a foundation pit
It is supported protection.Support protective frame is formed by the second support unit, packing is set on support protective frame, so enables to
Two support units apply pressure by the second backplate to the madial wall of secondary foundation pit, before which can simulate secondary excavation of foundation pit
Soil pressure, by setting packing, the support protection effect to secondary foundation pit can either be improved, and support protective frame can be improved
Overall construction intensity.By said structure design, deep basal pit secondary excavation and timbering construction structure energy provided by the utility model
Enough to be carried out at the same time protection to a foundation pit and secondary foundation pit simultaneously, protection effect is excellent, and the utility model also has
It is simple in structure, the advantages that being easy to build.
Description of the drawings
Fig. 1 is the structure schematic diagram of deep basal pit secondary excavation and timbering construction structure in the utility model embodiment；
In Fig. 1, the correspondence of component names and accompanying drawing number is：
First support unit 1, the first backplate 2, the second support unit 3, the second backplate 4, expansion sleeve 5, bolt 6, casing 7,
Metal packing 8, connecting rod 9.
Specific embodiment
The embodiment of the utility model is described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the utility model, but cannot be used for limiting the scope of the utility model.
In the description of the utility model, unless otherwise indicated, " multiple " are meant that two or more；Term
The orientation or position of the instructions such as " on ", " under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", " afterbody " are closed
Be for based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and simplify description rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as the limitation to the utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for description purpose, and cannot
It is interpreted as indicating or implying relative importance.
, it is necessary to illustrate in the description of the utility model, unless otherwise clearly defined and limited, term " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
It please refers to Fig.1, Fig. 1 is that the structure of deep basal pit secondary excavation and timbering construction structure is shown in the utility model embodiment
Meaning schematic diagram.
The utility model provides a kind of deep basal pit secondary excavation and timbering construction structure, and in the utility model, this is
System has specifically included two parts, wherein, a foundation pit guard assembly, can be to a base for setting into a foundation pit
The madial wall in hole is supported protection, and secondary foundation pit guard assembly, can be to secondary foundation pit for setting into secondary foundation pit
Madial wall be supported protection.
In an embodiment of the utility model, a foundation pit guard assembly includes the first support of truss structure
Unit 1 is provided with the first backplate 2 for being in contact with a foundation pit madial wall in the lateral surface of the first support unit 1.First
Support unit 1 uses steel truss structure, has higher support protection intensity, while its total quality is relatively low, avoids the
One support unit 1 has an impact the ground of a foundation pit.First support unit 1 is arranged in a foundation pit, is arranged on one
Secondary foundation pit passes through on the side wall of secondary foundation pit on the side that is contacted in the first support unit 1 with the madial wall of a foundation pit
Bolt is fixedly installed the first backplate 2, increases by the first contact with a foundation pit madial wall of support unit 1 by the first backplate 2
Area so can be supported protection to a foundation pit.
Secondary foundation pit guard assembly includes the second support unit 3 of truss structure, in the lateral surface of the second support unit 3
The second backplate 4 for being in contact with secondary foundation pit madial wall is provided with, installation set is provided on the second support unit 3, passes through
Second backplate 4, in being provided with to be inserted into secondary foundation pit madial wall soil on the lateral surface of secondary foundation pit guard assembly
Setscrew component, setscrew component include expansion sleeve 5 and bolt 6, and bolt 6 coordinates through installation set with expansion sleeve 5
Connection, the second support unit 3 are provided with the second multiple, whole support units and are sequentially connected and are formed with the branch of tubular structure
Protective frame is supportted, in being provided with casing 7 on the medial surface of support protective frame, metal packing 8, the first support are provided with by casing 7
The top of unit 1 is by setting connecting rod 9 and the top of the second support unit 3 to be connected.
8 bar construction of metal packing designs.
Second support unit, 3 structure is similar in the structure of the first support unit 1, its entirety is not repeated herein.
In the second support unit 3, installation set is provided with by welding manner on the second support unit 3, it first will be swollen
Swollen screw assembly is fixed on the madial wall of secondary foundation pit, is then installed the second support unit 3 and is caused the second support unit 3
The installation set of upper setting passes through setscrew component.The bolt 6 of setscrew component is revolved from expansion sleeve 5 by construction personnel
Go out, expansion sleeve 5 is expanded and formed a fixed connection structure with the madial wall of secondary foundation pit during bolt 6 screws out, and bolt 6 revolves
Go out after a part that it screws out partially passes through installation set and nut is set to realize the fixation between 6 and first support unit 1 of bolt
Connection, the second support unit 3 are connected by setscrew component with the medial surface of secondary foundation pit, and simple in structure, connection is reliably.
Support protective frame is formed by the second support unit 3, packing on support protective frame is set, so enables to second
It supports unit 3 and pressure is applied to the madial wall of secondary foundation pit by the second backplate 4, before which can simulate secondary excavation of foundation pit
Soil pressure by setting packing, can either improve the support protection effect to secondary foundation pit, and can improve the whole of support protective frame
Body structural strength.
By said structure design, deep basal pit secondary excavation and timbering construction structure provided by the utility model can be simultaneously
Protection is carried out at the same time to a foundation pit and secondary foundation pit, protection effect is excellent, and the utility model also has structure letter
It is single, the advantages that being easy to build.
Specifically, the first support unit 1 be steel truss structure, the second support unit 3 be steel truss structure, connecting rod 9
For steel pipe, the end of connecting rod 9 is fixedly connected by flange with the first support unit 1 and the second support unit 3.
In one embodiment of the utility model, the first backplate 2 is steel plate, and the first backplate 2 is set by the fixation of bolt 6
It is placed on the first support unit 1；Second backplate 4 is steel plate, and the second backplate 4 is fixedly installed on the second support unit 3 by bolt 6
On.
First backplate 2 can also use PVC plastic flitch or cystosepiment, the second backplate 4 can also use PVC plastic flitch or
Person's cystosepiment.
In the utility model, pass through the modes such as yoke configurations, steel wire bundle between adjacent two the second support units 3
It realizes connection, the connection structure of steelframe in architectural engineering in the prior art can also be used.
The embodiment of the utility model in order to example and description for the sake of and provide, and be not exhaustively or will
The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art
See.Selection and description embodiment are to more preferably illustrate the principle and practical application of the utility model, and make this field
Those of ordinary skill it will be appreciated that the utility model so as to designing the various embodiments with various modifications suitable for special-purpose.
Claims (3)
1. a kind of deep basal pit secondary excavation and timbering construction structure, which is characterized in that including：
For setting into a foundation pit for being supported a foundation pit guard assembly of protection to the madial wall of a foundation pit,
Foundation pit guard assembly includes the first support unit (1) of truss structure, in the outside of first support unit
Face is provided with the first backplate (2) being in contact with a foundation pit madial wall；
For setting into secondary foundation pit for being supported the secondary foundation pit guard assembly of protection to the madial wall of secondary foundation pit,
The secondary foundation pit guard assembly includes the second support unit (3) of truss structure, in the outside of second support unit
Face is provided with the second backplate (4) being in contact with secondary foundation pit madial wall, and installation is provided on second support unit
Set, is provided with to be inserted into secondary foundation pit through second backplate, on the lateral surface of the secondary foundation pit guard assembly
Setscrew component in madial wall soil, the setscrew component include expansion sleeve (5) and bolt (6), the spiral shell
Bolt is connected through the installation set and the expansion sleeve, second support unit be provided with it is multiple, whole described the
Two support units are sequentially connected and are formed with the support protective frame of tubular structure, are set on the medial surface of the support protective frame
Be equipped with casing (7), metal packing (8) be provided with by casing, the top of first support unit by set connecting rod (9) with
The top connection of second support unit.
2. deep basal pit secondary excavation according to claim 1 and timbering construction structure, which is characterized in that
First support unit is steel truss structure, and second support unit is steel truss structure, and the connecting rod is
Steel pipe, the end of the connecting rod are fixedly connected by flange with first support unit and second support unit.
3. deep basal pit secondary excavation according to claim 1 and timbering construction structure, which is characterized in that
First backplate is steel plate, and first backplate, which is bolted, to be arranged on first support unit；
Second backplate is steel plate, and second backplate, which is bolted, to be arranged on second support unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575624.5U CN207436064U (en) | 2017-05-16 | 2017-05-16 | Deep basal pit secondary excavation and timbering construction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575624.5U CN207436064U (en) | 2017-05-16 | 2017-05-16 | Deep basal pit secondary excavation and timbering construction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207436064U true CN207436064U (en) | 2018-06-01 |
Family
ID=62395097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720575624.5U Expired - Fee Related CN207436064U (en) | 2017-05-16 | 2017-05-16 | Deep basal pit secondary excavation and timbering construction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207436064U (en) |
-
2017
- 2017-05-16 CN CN201720575624.5U patent/CN207436064U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20190516 |