CN203654295U - Single-leg inclined strut reinforced foundation pit supporting structure - Google Patents
Single-leg inclined strut reinforced foundation pit supporting structure Download PDFInfo
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- CN203654295U CN203654295U CN201320854440.4U CN201320854440U CN203654295U CN 203654295 U CN203654295 U CN 203654295U CN 201320854440 U CN201320854440 U CN 201320854440U CN 203654295 U CN203654295 U CN 203654295U
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- Prior art keywords
- supporting
- foundation pit
- diagonal brace
- single limb
- pit supporting
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 70
- 238000010276 construction Methods 0.000 claims abstract description 51
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a single-leg inclined strut reinforced foundation pit supporting structure which comprises multiple supporting piles arranged around a foundation pit, multiple supporting piers, multiple single-leg inclined struts and waist beams used for connecting of the supporting piles. The supporting piers are arranged on a foundation base of the foundation pit and arranged correspondingly to the supporting piles in a one-to-one manner, height of each supporting pier is smaller than that of the corresponding supporting pile, an interval is formed between each supporting pier and the corresponding supporting pile, and one ends of the single-leg inclined struts are connected to the supporting piles while the other ends of the same are connected to the supporting piers. By utilizing the single-leg inclined struts, cantilever height of original supporting piles is reduced, and stressed supporting points are increased; the supporting piers are utilized to provide supporting counterforce to original foundation pit supporting piles, so that overall rigidity and bearing capacity of an original supporting structure are effectively enhanced, arrangement and normal construction of an underground structure are unaffected, and the single-leg inclined strut reinforced foundation pit supporting structure is convenient and quick in construction and obvious in reinforcing effect, and can produce an instant reinforcing effect.
Description
Technical field
The utility model relates to foundation pit construction technical field, relates in particular to a kind of single limb diagonal brace and reinforces foundation pit supporting construction.
Background technology
Along with the day of urban land is becoming tight, the construction of basement is also trend of the times, and pattern foundation pit supporting structure just becomes an important step of Underground Construction.In foundation pit construction, extensively adopt at present soldier pile as foundation pit supporting construction, to prevent that the distortion of foundation ditch surrounding enviroment and foundation ditch from collapsing, and guarantees carrying out smoothly of engineering construction construction.
Existing supporting and protection structure globality rigidity is poor, due to foundation ditch surrounding enviroment or loads change, and the impact such as land drainage, rainfall, easily cause the stressed increase of supporting and protection structure or support system effect to weaken, thereby cause foundation pit supporting system distortion excessive, even cause foundation pit supporting system to lose efficacy, serious threat is to construction safety.Due to site condition restriction, cannot adopt the off-load of cutting the earth after structure, set up etc. speedily carry out rescue work, reinforcement measure, and adopt preloading in hole to hinder Underground Construction, therefore, need to a kind ofly not be subject to site condition restriction not affect again Underground Construction and the simple and direct ruggedized construction of constructing.
In order to address the above problem, some project adopts between inner support or agent structure and supports and carry out supporting in conjunction with soldier pile, but inner support or main structure construction progress are slow, high material consumption, and inner support can to a certain degree have influence on main structure construction or affect programming.In addition, after foundation pit construction completes, also need inner support to remove, construction sequence complexity, be unfavorable for setting up fast, effectively, support system easily.
Therefore, how solving construction sequence complexity and the inefficient problem of foundation pit supporting construction, is the current technical issues that need to address of those skilled in the art.
Utility model content
In view of this, the utility model provides a kind of single limb diagonal brace to reinforce foundation pit supporting construction, for solving construction sequence complexity and the inefficient problem of foundation pit supporting construction.
In order to address the above problem, the utility model provides a kind of single limb diagonal brace to reinforce foundation pit supporting construction, comprise and be arranged at foundation ditch multiple soldier piles around, also comprise multiple support piers and multiple single limb diagonal braces and for being connected the waist rail of soldier pile described in each, described support pier be arranged at the substrate of described foundation ditch and with described soldier pile corresponding layout one by one, the height of described support pier is less than between the height of described soldier pile and each described support pier and its corresponding soldier pile and has spacing, one end of described single limb diagonal brace is connected in described support pier, the other end of described single limb diagonal brace is connected in described waist rail.
Preferably, described waist rail is connected in described soldier pile by the mode of bar planting.
Preferably, the angle of described single limb diagonal brace and horizontal plane is 40 °～50 °.
Preferably, the angle of described single limb diagonal brace and horizontal plane is 45 °.
Preferably, the horizontal range of described support pier and described soldier pile is 2m～3m.
Preferably, the length that is positioned at described substrate inside of described support pier accounts for 1/3～1/2 of described support pier entire length.
Preferably, the reinforcing cage of described single limb diagonal brace and the reinforcing cage of described support pier are integral type structure.
Single limb diagonal brace that the utility model provides is reinforced foundation pit supporting construction, comprise and be arranged at foundation ditch multiple soldier piles around, also comprise multiple support piers and multiple single limb diagonal braces and for being connected the waist rail of soldier pile described in each, described support pier be arranged at the substrate of described foundation ditch and with described soldier pile corresponding layout one by one, the height of described support pier is less than between the height of described soldier pile and each described support pier and its corresponding soldier pile and has spacing, one end of described single limb diagonal brace is connected in described support pier, the other end of described single limb diagonal brace is connected in described waist rail.
This programme utilization list limb diagonal brace has reduced the cantilever height of former soldier pile, increase stressed fulcrum, utilize support pier to provide bearing reaction for former foundation pit supporting pile, give full play to diagonal brace rigidity, thereby soil pressure is passed to substrate to stablize the soil body, change and alleviated bearing pressure and the bearing mode of former supporting and protection structure, and by being connected of diagonal brace and waist rail and former supporting and protection structure, globality and the supporting performance of former supporting and protection structure are strengthened, not only former supporting and protection structure is played to good reinforcement effect, and can effectively prevent that former supporting and protection structure is because being out of shape instability of foundation pit excessive or that bearing capacity causes not, do not affect layout and the normal construction of underground structure simultaneously.The utility model can section construction or local construction, and work progress is convenient and swift, reinforces instant effect and effect remarkable, easily promotes the use of, and has solved the complicated and inefficient problem of the construction sequence of foundation pit supporting construction.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Single limb diagonal brace that Fig. 1 provides for the utility model specific embodiment scheme is reinforced the structural representation of foundation pit supporting construction;
Fig. 2 is the top view of Fig. 1;
In Fig. 1 and Fig. 2:
Substrate-1, support pier-2, single limb diagonal brace-3, waist rail-4, soldier pile-5.
Detailed description of the invention
Core of the present utility model is to provide a kind of single limb diagonal brace and reinforces foundation pit supporting construction, for solving construction sequence complexity and the inefficient problem of foundation pit supporting construction.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2, single limb diagonal brace that Fig. 1 provides for the utility model specific embodiment scheme is reinforced the structural representation of foundation pit supporting construction; Fig. 2 is the top view of Fig. 1.
In a kind of specific embodiment, the utility model provides a kind of single limb diagonal brace to reinforce foundation pit supporting construction, comprise and be arranged at foundation ditch multiple soldier piles 5 around, also comprise that multiple support piers 2 are with multiple single limb diagonal braces 3 and for being connected the waist rail 4 of each soldier pile 5.
Concrete, support pier 2 be arranged at the substrate 1 of foundation ditch and with soldier pile 5 corresponding layout one by one, the height of support pier 2 is less than between the height of soldier pile 5 and each support pier 2 and its corresponding soldier pile 5 and has spacing.One end of single limb diagonal brace 3 is connected in support pier 2, and the other end of single limb diagonal brace 3 is connected in waist rail 4.
Wherein, one end of single limb diagonal brace 3 is connected with waist rail 4, and the other end is supported on support pier 2, forms oblique support and Force transmission parts, for soil pressure being passed to support pier 2.Support pier 2 is for being passed to load substrate 1.Waist rail 4 is for gathering the extremely single limb diagonal brace 3 of soil pressure on each soldier pile 5, and waist rail 4 is connected the top of multiple single limb diagonal braces 3, forms the local pressure system in single limb diagonal brace 3 spacing ranges.Support pier 2 enters substrate 1 certain depth, to guarantee stability and the power transmission effect of single limb diagonal brace 3 supportings.
It should be noted that, the angular range between single limb diagonal brace 3 and horizontal plane is 40 °～50 °.Preferably, in the present embodiment scheme, single limb diagonal brace 3 is 45 ° with the angle of horizontal plane, so arranges, and can improve single limb diagonal brace 3 and transmit the ability of load.
It should be noted that, support pier 2 is 2m～3m with the horizontal range of soldier pile 5.To guarantee the installing space of single limb diagonal brace 3.
It should be noted that, the length that is positioned at substrate inside of support pier 2 accounts for 1/3～1/2 of support pier 2 entire length, to ensure the bonding strength and the ability of transmitting load of support pier 2.
A kind of implementation process that single limb diagonal brace that the utility model provides is reinforced foundation pit supporting construction is as follows:
(1) borehole (groove) props up (block) mould, puts reinforcing cage, fluid concrete, forms support pier 2, and the reinforcing bar being connected by a side main muscle pre-buried and single limb diagonal brace 3 of soldier pile 5 at support pier 2;
(2) on the soldier pile 5 of foundation ditch, by bar planting mode, waist rail 4 is installed, and the reinforcing bar that main muscle pre-buried and single limb diagonal brace 3 is connected on waist rail 4;
(3) grooving on oblique native face, lays the reinforcing cage of single limb diagonal brace 3, and main muscle and support pier 2 and the reserved reinforcing bar of waist rail 4 are connected and fixed to (being generally welding), and (block) mould, fluid concrete, form single limb diagonal brace 3, and form structural system;
(4) soil body of the back-pressure backfill under the front single limb diagonal brace 3 of excavation supporting stake 5.
This programme utilization list limb diagonal brace 3 has reduced the cantilever height of former soldier pile 5, increase stressed fulcrum, utilize support pier 2 to provide bearing reaction for former foundation pit supporting pile 5, give full play to diagonal brace rigidity, thereby soil pressure is passed to substrate 1 to stablize the soil body, change and alleviated bearing pressure and the bearing mode of former supporting and protection structure, and by being connected of diagonal brace and waist rail 4 and former supporting and protection structure, globality and the supporting performance of former supporting and protection structure are strengthened, effectively strengthen integral rigidity and the supporting capacity of former supporting and protection structure, not only former supporting and protection structure is played to good reinforcement effect, and can effectively prevent that former supporting and protection structure is because being out of shape instability of foundation pit excessive or that bearing capacity causes not, do not affect layout and the normal construction of underground structure simultaneously.The utility model can section construction or local construction, and work progress is convenient and swift, reinforces instant effect and effect remarkable, easily promotes the use of, and has solved the complicated and inefficient problem of the construction sequence of foundation pit supporting construction.
It should be noted that, in the time of this supporting and protection structure of cast, the reinforcing cage of single limb diagonal brace 3 and the reinforcing cage of support pier 2 weld together, in order to strengthen the bonding strength between single limb diagonal brace 3 and support pier 2, in another kind of preferred version, the reinforcing cage of single limb diagonal brace 3 and the reinforcing cage of support pier 2 are integral type structure, make in advance the reinforcement cage structure of the one of single limb diagonal brace 3 and support pier 2, and then dig the operation such as mould and cast, so just can greatly increase bonding strength between the two, make the supporting capacity of this foundation pit supporting construction stronger.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. single limb diagonal brace is reinforced foundation pit supporting construction, comprise and be arranged at foundation ditch multiple soldier piles (5) around, it is characterized in that, also comprise multiple support piers (2) and multiple single limb diagonal braces (3) and for being connected the waist rail (4) of soldier pile (5) described in each, described support pier (2) be arranged at the substrate (1) of described foundation ditch and with described soldier pile (5) corresponding layout one by one, the height of described support pier (2) is less than between the height of described soldier pile (5) and each described support pier (2) and its corresponding soldier pile (5) and has spacing, one end of described single limb diagonal brace (3) is connected in described support pier (2), the other end of described single limb diagonal brace (3) is connected in described waist rail (4).
2. single limb diagonal brace according to claim 1 is reinforced foundation pit supporting construction, it is characterized in that, described waist rail (4) is connected in described soldier pile (5) by the mode of bar planting.
3. single limb diagonal brace according to claim 1 is reinforced foundation pit supporting construction, it is characterized in that, described single limb diagonal brace (3) is 40 °～50 ° with the angle of horizontal plane.
4. single limb diagonal brace according to claim 3 is reinforced foundation pit supporting construction, it is characterized in that, described single limb diagonal brace (3) is 45 ° with the angle of horizontal plane.
5. single limb diagonal brace according to claim 1 is reinforced foundation pit supporting construction, it is characterized in that, described support pier (2) is 2m～3m with the horizontal range of described soldier pile (5).
6. single limb diagonal brace according to claim 1 is reinforced foundation pit supporting construction, it is characterized in that, the inner length of described substrate (1) that is positioned at of described support pier (2) accounts for 1/3～1/2 of described support pier (2) entire length.
7. reinforce foundation pit supporting construction according to the single limb diagonal brace described in claim 1 to 6 any one, it is characterized in that, the reinforcing cage of the reinforcing cage of described single limb diagonal brace (3) and described support pier (2) is integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854440.4U CN203654295U (en) | 2013-12-23 | 2013-12-23 | Single-leg inclined strut reinforced foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854440.4U CN203654295U (en) | 2013-12-23 | 2013-12-23 | Single-leg inclined strut reinforced foundation pit supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN203654295U true CN203654295U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320854440.4U Expired - Lifetime CN203654295U (en) | 2013-12-23 | 2013-12-23 | Single-leg inclined strut reinforced foundation pit supporting structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032670A (en) * | 2015-03-16 | 2016-10-19 | 中建四局第建筑工程有限公司 | Supporting structure and construction method for improving horizontal resistance of basement support pile |
| CN107780445A (en) * | 2017-10-18 | 2018-03-09 | 山东商务职业学院 | A kind of architectural support structure and its construction method |
| CN108104136A (en) * | 2018-01-02 | 2018-06-01 | 中国建筑第八工程局有限公司 | Foundation pit supporting construction and its construction method |
| CN108457276A (en) * | 2017-02-22 | 2018-08-28 | 中国二十冶集团有限公司 | Construction method of deep foundation ditch under complex engineering environment |
| CN110777802A (en) * | 2019-10-21 | 2020-02-11 | 中国建筑第八工程局有限公司 | Deep foundation pit high-low span supporting structure and construction method thereof |
| CN111101524A (en) * | 2020-01-17 | 2020-05-05 | 龚大娇 | Temporary supporting structure for foundation pit construction and temporary supporting construction method |
| CN111648371A (en) * | 2020-06-17 | 2020-09-11 | 王冰璇 | Pier-row type enclosure wall with deformation control frame |
-
2013
- 2013-12-23 CN CN201320854440.4U patent/CN203654295U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032670A (en) * | 2015-03-16 | 2016-10-19 | 中建四局第建筑工程有限公司 | Supporting structure and construction method for improving horizontal resistance of basement support pile |
| CN108457276A (en) * | 2017-02-22 | 2018-08-28 | 中国二十冶集团有限公司 | Construction method of deep foundation ditch under complex engineering environment |
| CN107780445A (en) * | 2017-10-18 | 2018-03-09 | 山东商务职业学院 | A kind of architectural support structure and its construction method |
| CN108104136A (en) * | 2018-01-02 | 2018-06-01 | 中国建筑第八工程局有限公司 | Foundation pit supporting construction and its construction method |
| CN108104136B (en) * | 2018-01-02 | 2024-03-15 | 中国建筑第八工程局有限公司 | Foundation pit supporting structure and construction method thereof |
| CN110777802A (en) * | 2019-10-21 | 2020-02-11 | 中国建筑第八工程局有限公司 | Deep foundation pit high-low span supporting structure and construction method thereof |
| CN111101524A (en) * | 2020-01-17 | 2020-05-05 | 龚大娇 | Temporary supporting structure for foundation pit construction and temporary supporting construction method |
| CN111648371A (en) * | 2020-06-17 | 2020-09-11 | 王冰璇 | Pier-row type enclosure wall with deformation control frame |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |