CN209082508U - A kind of foundation pit supporting construction - Google Patents
A kind of foundation pit supporting construction Download PDFInfo
- Publication number
- CN209082508U CN209082508U CN201821115751.8U CN201821115751U CN209082508U CN 209082508 U CN209082508 U CN 209082508U CN 201821115751 U CN201821115751 U CN 201821115751U CN 209082508 U CN209082508 U CN 209082508U
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- CN
- China
- Prior art keywords
- foundation pit
- supporting construction
- steel plate
- fender post
- construction according
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Abstract
The utility model discloses a kind of foundation pit supporting constructions, belong to building lot supporting construction, its key points of the technical solution are that including the foundation pit for excavating completion in advance, the bottom surface of the foundation pit is provided with several high-pressure rotary jet grouting piles, the high-pressure rotary jet grouting pile is inserted into the following soil layer in bottom of foundation pit, the side wall of the foundation pit is equipped with sealing floor, the bottom surface of the foundation pit is equipped with and bottom surface supporting reinforcing bar in bottom surface disposed in parallel, it is several that fender post is vertically installed on the bottom surface of the foundation pit, the fender post along foundation pit side wall ring around setting, this foundation pit supporting construction the advantage is that with good support capacity.
Description
Technical field
The utility model relates to building lot supporting construction, in particular to a kind of foundation pit supporting construction.
Background technique
Excavation pit is all first needed in construction, needs to install supporting construction in foundation pit and foundation pit is reinforced and protected
Shield guarantees the reliable and stable of below ground constructing structure, and preventing the earthwork around foundation pit from collapsing influences the safety of building.
Pattern foundation pit supporting structure generally uses two different supporting construction both at home and abroad at present: one of which is concrete grouting column branch
Support structure, another kind are bar construction support constructions, and both of which can complete basic structural support to foundation pit.But with building
The raising of construction requirement, existing supporting construction only rely on concrete grouting column or reinforcing bar to complete supporting, and support capacity cannot
Meet detail design requirement.
Utility model content
The purpose of the utility model is to provide a kind of foundation pit supporting construction, the advantage is that with good support capacity.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of foundation pit supporting construction, the foundation pit including excavating completion in advance, the bottom surface of the foundation pit is provided with several high pressures
Rotary churning pile, the high-pressure rotary jet grouting pile are inserted into the following soil layer in bottom of foundation pit, and the side wall of the foundation pit is equipped with sealing floor, institute
State foundation pit bottom surface be equipped with bottom surface supporting reinforcing bar in bottom surface disposed in parallel, be vertically installed on the bottom surface of the foundation pit and go along with sb. to guard him
Stake it is several, the fender post along foundation pit side wall ring around setting.
By using above-mentioned technical proposal, using high-pressure rotary jet grouting pile, support reinforcement is carried out for the bottom surface of foundation pit；Foundation pit
Side wall is equipped with sealing floor, and on the one hand sealing floor is used to support the side wall of foundation pit, another aspect sealing floor can also prevent ground
What is be lauched leaks into foundation pit, and supporting reinforcing bar in bottom surface further reinforces the bottom surface of foundation pit, by fender post further to foundation pit
Side wall carries out support reinforcement, and foundation pit supporting construction is made to have excellent support capacity.
Further, steel plate is equipped between adjacent fender post, the steel plate is arranged along the axis direction of fender post.
By using above-mentioned technical proposal, steel plate itself has good structural rigidity, and one side steel plate is further reinforced
The side wall of foundation pit 1, another aspect steel plate can also stop the cubic metre of earth and stone to be subside into foundation pit, interfere the normal work of construction personnel in foundation pit
Make.
Further, steel plate is equipped with connection strap along the two sides of itself width direction, is provided on the side wall of the fender post
The mating mounting groove with connection strap.
By using above-mentioned technical proposal, steel plate connection strap and mounting groove cooperation by way of be fixed on fender post it
Between, also facilitate after being basically completed work, disassembly steel plate is convenient to utilize again.
Further, to be provided with circular hole on steel plate several.
By using above-mentioned technical proposal, it is provided with circular hole on the steel plate and is mainly used for mitigating the weight of steel plate, is convenient to pacify
Assembly and disassembly steel plate.
Further, circular hole is in uniform array distribution.
By using above-mentioned technical proposal, circular hole, mainly for steel plate uniform force, avoids steel in uniform array distribution
There is the case where structure destruction in plate.
Further, Circularhole diameter is 15 centimetres.
By using above-mentioned technical proposal, if the diameter of circular hole is excessive, the structural strength that may result in steel plate is reduced,
Cause steel plate that cannot play the supporting effect required at the beginning of design, it is contemplated that combine and mitigate own wt and have good
Supporting performance, so selecting the diameter of circular hole for 15 centimetres.
Further, supporting reinforcing bar in bottom surface is in criss-cross netted setting.
By using above-mentioned technical proposal, supporting reinforcing bar in bottom surface is arranged using this mesh shape, is conducive to bottom surface supporting
Reinforcing bar further reinforces the bottom surface of foundation pit.
Further, bottom surface supporting reinforcing bar node location weld stiffener, the stiffener vertically with foundation pit
Bottom surface.
By using above-mentioned technical proposal, on the one hand stiffener is conducive to the requirement according to practice of construction in stiffener
On the other hand the scaffold that upper installation uses further is mentioned when backfill foundation pit stiffener after the completion of constructing is located in foundation pit
The structural strength of high foundation pit.
Further, the spacing of adjacent fender post is 6 meters.
By using above-mentioned technical proposal, due to needing to install other supporting construction, such as steel plate, steel plate between fender post
Need to meet the design requirement of pattern foundation pit supporting structure so plate size is set in advance, the spacing of fender post needs to meet design
It is required that while under the premise of meeting design requirement, reduce the quantity of fender post to the greatest extent, save construction cost.
Further, mounting groove is T-slot, and the connection strap is also T-type item.
It by using above-mentioned technical proposal, is convenient to be clamped item securely and is connected in T-slot, reduce connection strap from installation
The case where slot favorite outer abjection, occurs.
In conclusion the utility model has the following beneficial effects:
1. carrying out supporting to foundation pit by concrete structure and bar construction, there is good support capacity；
2. reducing the setting quantity of fender post as far as possible under the premise of meeting supporting requirement, favorably saving construction cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of foundation pit supporting construction；
Fig. 2 is the partial enlargement structural representation in Fig. 1 at A.
In figure, 1, foundation pit；11, bottom surface supporting reinforcing bar；12, stiffener；2, sealing floor；3, high-pressure rotary jet grouting pile；4, it encloses
Fender pile；41, mounting groove；5, steel plate；51, connection strap；52, circular hole.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical components are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
Embodiment: a kind of foundation pit supporting construction, as shown in Figure 1, including the foundation pit 1 excavated in advance, foundation pit 1 is in cubic
Setting, foundation pit 1 are mainly used for providing a space, and the operation that builds on basis is enable to carry out according to the specified position of design.
The bottom surface of foundation pit 1 is several equipped with bottom surface supporting reinforcing bar 11, and bottom surface supporting reinforcing bar 11 is parallel to sole arrangement, and bottom surface supporting
Reinforcing bar 11 is in criss-cross netted setting, and bottom surface supporting reinforcing bar 11 is mainly used for the structural strength for the foundation pit bottom surface reinforced, and
It is in uniform state in criss-cross netted 11 stress of bottom surface supporting reinforcing bar that is also beneficial to, stress raisers is avoided the occurrence of, leads
Cause 11 local pressures of bottom surface supporting reinforcing bar excessive, it may occur that the case where fracture.
As shown in Figure 1, the node location that bottom surface supporting reinforcing bar 11 intersects is welded with stiffener 12, stiffener 12 is along base
The short transverse in hole 1 is vertically arranged, and 12 length of stiffener is greater than the height of foundation pit 1, process of the stiffener 12 in construction
In can be used as the basis of required scaffold in installation, advantageous worker carries out construction operation, on the other hand when all works
After completing, foundation pit 1 can be backfilled using the cubic metre of earth and stone, stiffener 12 can be used as the structure reinforcing bars of foundation pit 1, improve foundation pit 1
Structural strength the part of the prominent foundation pit 1 of stiffener 12 is cut off after foundation pit 1 is completed to backfill.
As shown in Figure 1, the side wall of foundation pit 1 is equipped with sealing floor 2, sealing floor 2 is main prefabricated by concrete
It forms, sealing floor 2 is mainly used for supporting the side wall of foundation pit 1, on the one hand the cubic metre of earth and stone around foundation pit 1 is prevented to occur collapsing accident
It drops into foundation pit 1, influences the normal work of construction personnel in foundation pit 1, another aspect sealing floor 2 itself has good anti-
Aqueous energy, it is effective that underground water is prevented to leak into foundation pit 1 from the side wall of foundation pit 1.
As shown in Figure 1, the bottom surface of foundation pit 1 be equipped with several high-pressure rotary jet grouting piles 3, high-pressure rotary jet grouting pile 3 setting 1 bottom surface of foundation pit with
Under soil layer in, and high-pressure rotary jet grouting pile 3 arranges that high-pressure rotary jet grouting pile 3 is fixed into mainly due to concrete grouting in uniform array
Type.During construction, drilling machine pore-creating is used first on the bottom surface of foundation pit 1, the arrangement of nozzles of high-pressure rotary-spray exists later
In the hole being drilled, jet groutinl is carried out later, while nozzle swing is promoted, wait in hole and be completely filled with concrete paddle, and
And aperture pulp noodle are no longer sunk, until the fixed molding for completing high-pressure rotary jet grouting pile 3 of concrete paddle.High-pressure rotary jet grouting pile 3 is mainly used for
The bottom surface of foundation pit 1 is reinforced, because being all often the rock structure pine because local when needing to install supporting construction in foundation pit 1
It dissipates, leads to the poor requirement for not being able to satisfy construction of support performance, may result in the hair of cave-in accident under serious situation
It is raw, great security risk is caused, high-pressure rotary jet grouting pile 3 strengthens the support strength and stability of 1 bottom surface of foundation pit, improves foundation pit
1 bearing capacity reduces a possibility that cave-in accident occurs due to support performance deficiency, is conducive to safe construction.
Referring to figs. 1 and 2, it is several that several fender posts 4 are also provided on the bottom surface of foundation pit 1, fender post 4 perpendicular to
The bottom surface of foundation pit 1 is simultaneously located in foundation pit 1, fender post 4 along foundation pit side wall ring around setting, and fender post 4 and sealing floor 2 refer to
To offseting on one side for 1 center of foundation pit.Since the side wall of foundation pit 1 is carrying stress position the most serious, if foundation pit 1
Side wall support capacity deficiency, which is easy to cause, occurs the accident that the cubic metre of earth and stone collapses, and fender post 4 further strengthens the support of sealing floor 2
Ability, to increase the utmost carrying ability of the side wall of foundation pit 1 again.
Referring to figs. 1 and 2, steel plate 5 is provided between adjacent fender post 4, steel plate 5 is arranged along the axial direction of fender post 4,
Steel plate 5 is due to itself having good mechanism rigidity, and steel plate 5 further strengthens the supporting for 1 side wall of foundation pit, at the same time
Steel plate 5 stops the cubic metre of earth and stone to drop into foundation pit 1.Spacing is 6 meters between adjacent fender post 4, since steel plate 5 is to meet setting for supporting
It counts designed in advance, for meeting basic support requirement, while still considering that the stabilization of project cost is arranged less as far as possible
Fender post 4 saves construction cost.
Referring to figs. 1 and 2, the mounting groove along the setting of 4 short transverse of fender post is offered on the outer surface of fender post 4
41, mounting groove 41 is T-slot, and the two sides of steel plate 5 are provided with the connection strap 51 for being similarly T-type setting, and connection strap 51 and peace
Tankage 41 is mating, also facilitates while effectively steel plate 5 is firmly fixed between fender post 4 and dismantles steel after construction
It is used when the construction standby next time of plate 5, is conducive to save construction cost, improves economic well-being of workers and staff.
Referring to figs. 1 and 2, be provided on steel plate 5 through itself circular hole 52 it is several, circular hole 52 be in uniform array cloth
It sets, and 52 diameter of circular hole is 15 centimetres.Circular hole 52 is mainly used for mitigating the self weight of steel plate 5, is convenient to the progress of construction personnel
Transport and installation.Circular hole 52 is arranged in uniform array, leads to steel mainly for avoiding steel plate from the case where stress raisers occur
There is structure destruction in plate 5, reduces the support capacity of steel plate 5, while the diameter of circular hole 52 cannot be excessive, may result in steel plate
Structural strength reduce be not achieved detail design reinforcement ability requirement, 52 diameter of circular hole be 15 centimetres take into account mitigate own wt and
Construction demand with good supporting performance.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of foundation pit supporting construction, the foundation pit (1) including excavating completion in advance, it is characterised in that: the bottom surface of the foundation pit (1)
It is provided with several high-pressure rotary jet grouting piles (3), the high-pressure rotary jet grouting pile (3) is inserted into the following soil layer in bottom of foundation pit (1), the base
The side wall for cheating (1) is equipped with sealing floor (2), and the bottom surface of the foundation pit (1) is equipped with and bottom surface bottom surface Support Steel disposed in parallel
Muscle (11), is vertically installed with that fender post (4) is several on the bottom surface of the foundation pit (1), side of the fender post (4) along foundation pit (1)
Wall is around setting.
2. a kind of foundation pit supporting construction according to claim 1, it is characterised in that: be equipped between adjacent fender post (4)
Steel plate (5), the steel plate (5) are arranged along the axis direction of fender post (4), and steel plate (5) and the side wall of foundation pit (1) are mutually flat
Row.
3. a kind of foundation pit supporting construction according to claim 2, it is characterised in that: the steel plate (5) is along itself width
The two sides in direction are equipped with connection strap (51), are provided on the side wall of the fender post (4) and connection strap (51) mating installation
Slot (41).
4. a kind of foundation pit supporting construction according to claim 3, it is characterised in that: be provided with circular hole on the steel plate (5)
(52) several.
5. a kind of foundation pit supporting construction according to claim 4, it is characterised in that: the circular hole (52) is in uniform array
Distribution.
6. a kind of foundation pit supporting construction according to claim 5, it is characterised in that: circular hole (52) diameter is 15 lis
Rice.
7. a kind of foundation pit supporting construction according to claim 1, it is characterised in that: the bottom surface supporting reinforcing bar (11) is in vertical
The wrong netted setting of traversed by.
8. a kind of foundation pit supporting construction according to claim 2, it is characterised in that: the section of the bottom surface supporting reinforcing bar (11)
Point position welding stiffener (12), the vertical bottom surface with foundation pit (1) of the stiffener (12).
9. a kind of foundation pit supporting construction according to claim 1, it is characterised in that: the spacing of adjacent fender post (4) is 6
Rice.
10. a kind of foundation pit supporting construction according to claim 3, it is characterised in that: the mounting groove (41) is T-slot,
The connection strap (51) is also T-type item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115751.8U CN209082508U (en) | 2018-07-12 | 2018-07-12 | A kind of foundation pit supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115751.8U CN209082508U (en) | 2018-07-12 | 2018-07-12 | A kind of foundation pit supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209082508U true CN209082508U (en) | 2019-07-09 |
Family
ID=67113402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821115751.8U Expired - Fee Related CN209082508U (en) | 2018-07-12 | 2018-07-12 | A kind of foundation pit supporting construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209082508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270690A (en) * | 2020-03-12 | 2020-06-12 | 江苏长江机械化基础工程有限公司 | Slope supporting structure and construction method thereof |
-
2018
- 2018-07-12 CN CN201821115751.8U patent/CN209082508U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270690A (en) * | 2020-03-12 | 2020-06-12 | 江苏长江机械化基础工程有限公司 | Slope supporting structure and construction method thereof |
| CN111270690B (en) * | 2020-03-12 | 2020-12-15 | 中煤长江基础建设有限公司 | Slope supporting structure and construction method thereof |
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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 |
Granted publication date: 20190709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |