CN213741134U - Pile foundation joist counterfort retaining wall - Google Patents
Pile foundation joist counterfort retaining wall Download PDFInfo
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- CN213741134U CN213741134U CN202022194400.4U CN202022194400U CN213741134U CN 213741134 U CN213741134 U CN 213741134U CN 202022194400 U CN202022194400 U CN 202022194400U CN 213741134 U CN213741134 U CN 213741134U
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Abstract
The utility model relates to a pile foundation joist counterfort formula barricade, it is reinforcing bar-concrete placement structure, including double pile foundation, joist and counterfort formula barricade, the both ends of joist are located double pile foundation top, counterfort formula barricade is located the top of joist, the main muscle of double pile foundation, counterfort formula barricade stretches into in the joist. The utility model provides a pile foundation joist counterfort barricade compares in traditional counterfort formula barricade, need not redesign toe board and butt board, the work progress has been simplified, construction cost has been saved, the load transmission to the pile foundation of counterfort formula barricade through the joist, the atress is reasonable, design benefit, it struts to be applicable to the high fill side slope on the deep filled ground, and during the construction, it is smaller to set up the grout hole all around, it is very little to the soil layer disturbance, can adopt the high-pressure squirt to punch a hole or drill, hole sealing and trompil construction at any time, regulated pressure is steady controllable, construction convenience is simple.
Description
Technical Field
The utility model relates to a building slope engineering struts the field, especially relates to a pile foundation joist counterfort formula barricade.
Background
In engineering construction, a high side slope retaining wall is often built on a soft foundation such as deep loose filling. At this time, if the conventional buttress retaining wall is adopted, the problems that the foundation bearing capacity does not meet the requirement of the retaining wall foundation stress, the post-construction settlement is difficult to control, the foundation base slides integrally and the like often occur.
In the prior art, large-diameter slide-resistant piles are commonly used for high fill slope support on deep filled foundations at present. The anti-slide pile end of the method needs to enter a stable rock-soil layer for a certain depth, the pile length is long, the anti-slide force and the anti-overturning moment are provided through the passive soil pressure of the embedded end, and the stress is unreasonable. However, the large-diameter slide-resistant pile usually adopts a manual hole digging and hole forming cast-in-place pile, and requires a protection arm, so that the construction difficulty is high, and the cost is high. Therefore, it is urgently needed to develop a pile foundation joist buttress type retaining wall which is simple and convenient to construct and low in cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a lower pile foundation joist counterfort formula barricade of simple and convenient, the cost of being under construction.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a pile foundation joist counterfort barricade, for reinforcing bar-concrete placement structure, including double pile foundation, joist and buttress formula barricade, the both ends of joist are located double pile foundation top, buttress formula barricade is located the top of joist, the main muscle of double pile foundation, buttress formula barricade stretches into in the joist.
In a preferred embodiment of the present invention, the double-row pile foundation is composed of a plurality of rows of front-row foundation piles and rear-row foundation piles arranged side by side.
The utility model provides a pile foundation joist buttresses wall type barricade's a preferred embodiment, double pile foundation is circular stake, and the stake footpath is 0.8 ~ 1.2 m.
The utility model provides a pile foundation joist counterfort retaining wall's a preferred embodiment, the joist includes front row foundation pile crown beam, back row foundation pile crown beam and many antithetical couplet roof beams, many the antithetical couplet roof beam is equidistant to be set up side by side, and its both ends are connected respectively front row foundation pile crown beam, back row foundation pile crown beam.
The utility model provides a pile foundation joist counterfort retaining wall's a preferred embodiment, the cross-section of joist is the rectangle, and the width is not less than double pile foundation's stake footpath.
In a preferred embodiment of the pile foundation joist buttress type retaining wall provided by the present invention, the buttress type retaining wall comprises a vertical plate and a plurality of buttress plates, wherein the vertical plate is disposed on the front row foundation pile crown beam, and each of the vertical plates is opposite to the coupling beam which is disposed and connected to the vertical plate and the coupling beam.
In a preferred embodiment of the pile foundation joist counterfort retaining wall of the present invention, the relative outer side surface of the vertical plate is provided with a slope of 1: 0.01-1: 0.02, the thickness of the top end is not less than 300mm, and the height is 8-20 m.
The utility model provides a pile foundation joist buttresses wall type barricade's a preferred embodiment, the interval of holding up the wallboard does 0.4 ~ 0.6 times of riser height, thickness are 0.1 ~ 0.2 times of the interval between two adjacent buttresses, and aspect ratio is 1.5 ~ 2.0 m.
The utility model provides a pile foundation joist buttresses buttressing wall type barricade's a preferred embodiment, the main muscle of double pile foundation and riser and buttressing plate stretches into length in the joist is not less than 35D, and D is the diameter of main muscle.
Compared with the prior art, the utility model provides a pile foundation joist counterfort formula barricade's beneficial effect is: the utility model provides a pile foundation joist counterfort barricade compares in traditional counterfort formula barricade, need not redesign toe board and butt board, the work progress has been simplified, construction cost has been saved, the load transmission to the pile foundation of counterfort formula barricade through the joist, the atress is reasonable, design benefit, it struts to be applicable to the high fill side slope on the deep filled ground, and during the construction, it is smaller to set up the grout hole all around, it is very little to the soil layer disturbance, can adopt the high-pressure squirt to punch a hole or drill, hole sealing and trompil construction at any time, regulated pressure is steady controllable, construction convenience is simple.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural view of a pile foundation joist buttress retaining wall provided by the present invention;
fig. 2 is a top view of the pile joist counterfort retaining wall provided in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1 and 2, the present embodiment provides a pile foundation joist counterfort retaining wall 1, which is a steel bar-concrete casting structure, and includes a double-row pile foundation 11, a joist 12 and a counterfort retaining wall 13, wherein two ends of the joist 12 are disposed at the top of the double-row pile foundation 11, the double-row pile foundation 11 of the present embodiment is used for supporting the joist 12 and serving as a foundation of the whole retaining wall 1, preferably, the double-row pile foundation 11 of the present embodiment is composed of multiple rows of front-row foundation piles 1101 and rear-row foundation piles 1102 arranged side by side, the double-row pile foundation 11 is a circular pile, the pile diameter is 0.8-1.2 m, the counterfort retaining wall 13 is disposed at the top of the joist 12, and main bars of the double-row pile foundation 11 and the counterfort retaining wall 13 extend into the joist 12 (not shown in the figure), so that the whole retaining wall 1 is cast into an integral structure, and the structural strength is high.
During specific construction, firstly constructing a double-row pile foundation, and adopting a rotary-excavated bored concrete pile or a manual-excavated bored concrete column; constructing a joist, chiseling off floating slurry on the pile top, and extending the main rib into the joist; and constructing a vertical plate and a counterfort plate, and finally backfilling earthwork. The retaining wall of this embodiment need not construction wall heel board and wall toe board, labour saving and material saving, the cost is lower, double row pile basis safe and reliable, buttress formula retaining wall atress is reasonable.
Example two
On the basis of the first embodiment, the joist 12 of the present embodiment includes a front row foundation pile crown beam 1201, a rear row foundation pile crown beam 1202 and a plurality of coupling beams 1203, the plurality of coupling beams 1203 are arranged in parallel at equal intervals, and both ends of the plurality of coupling beams 1203 are respectively connected to the front row foundation pile crown beam 1201 and the rear row foundation pile crown beam 1202.
Preferably, the cross section of the joist 12 is rectangular, the width is not less than the pile diameter of the double-row pile foundation 11, the preferred width is 1.0-1.4 m, and the height is 0.8-1.0 m.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, the buttress-type retaining wall 13 of the present embodiment includes a vertical plate 1301 and a plurality of buttress plates 1302, where the vertical plate 1301 is disposed on the front-row foundation pile crown 1201, and each vertical plate 1301 is disposed opposite to the linking beam 1203 and connects the vertical plate 1301 and the linking beam 1203.
Preferably, the opposite outer side surface of the vertical plate 1301 is provided with a slope of 1: 0.01-1: 0.02, the thickness of the top end of the vertical plate is not less than 300mm, and the height of the vertical plate is 8-20 m.
Preferably, the distance between the buttress plates 1302 is 0.4-0.6 times the height of the vertical plate 1301, the thickness is 0.1-0.2 times the distance between two adjacent buttress plates 1302, and the aspect ratio is 1.5-2.0 m.
In the above embodiment, the length of the main reinforcement of the double-row pile foundation 11, the vertical plate 1301 and the buttress plate 1302 extending into the joist 12 is not less than 35D, D is the diameter of the main reinforcement, which meets the anchoring requirement of the main reinforcement, and the number of the main reinforcement is configured by calculating the bearing capacity.
In the above embodiment, the pile type, the pile diameter, the distance, the row spacing and the reinforcement of the double-row pile foundation can be selected according to the working condition and the actual requirement, and the size and the reinforcement of the joist, the vertical plate and the buttress plate are determined.
The invention also provides an excavation process of the pile foundation joist corbel counterfort retaining wall in the embodiment, which specifically comprises the following steps:
step one, measurement and positioning: positioning on the site by using a theodolite, a level gauge, a tower ruler and a steel tape according to on-site investigation and combined design;
positioning retest and point placement: carrying out retesting after positioning, and determining pile positions of the front row of foundation piles and the rear row of foundation piles;
step three, constructing the front row foundation piles and the rear row foundation piles: a rotary excavator is generally adopted to form a hole cast-in-place pile, or a manual hole cast-in-place pile is adopted, and the main reinforcement at the top of the pile is reserved with the anchoring length of a joist;
step four, joist construction: binding the steel bars of the joists, and integrally pouring the front row pile crown beam, the rear row pile crown beam and the coupling beam.
Step five, constructing the vertical plates and the counterfort plates: and binding the vertical plates and the reinforcing steel bars of the counterfort plates, and pouring concrete.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a pile foundation joist counterfort formula barricade, its characterized in that: for reinforcing bar-concrete placement structure, including double pile foundation, joist and buttress formula barricade, the both ends of joist are located double pile foundation top, buttress formula barricade is located the top of joist, the main muscle of double pile foundation, buttress formula barricade stretches into in the joist.
2. The pile foundation joist buttress-type retaining wall of claim 1, wherein: the double-row pile foundation consists of a plurality of rows of front row foundation piles and rear row foundation piles which are arranged in parallel.
3. The pile foundation joist buttress-type retaining wall of claim 1 or 2, wherein: the double-row pile foundation is a circular pile, and the diameter of the pile is 0.8-1.2 m.
4. The pile foundation joist buttress-type retaining wall of claim 1, wherein: the joist comprises a front row foundation pile crown beam, a rear row foundation pile crown beam and a plurality of coupling beams, wherein the plurality of coupling beams are arranged in parallel at equal intervals, and the two ends of the coupling beams are respectively connected with the front row foundation pile crown beam and the rear row foundation pile crown beam.
5. The pile foundation joist buttress-type retaining wall of claim 1 or 4, wherein: the cross section of the joist is rectangular, and the width of the joist is not less than the pile diameter of the double-row pile foundation.
6. The pile foundation joist buttress-type retaining wall of claim 4, wherein: the counterfort type retaining wall comprises vertical plates and a plurality of counterfort plates, the vertical plates are arranged on the front row foundation pile crown beams, and each vertical plate is arranged opposite to the coupling beam and is connected with the vertical plates and the coupling beam.
7. The pile foundation joist buttress-type retaining wall of claim 6, wherein: the opposite outer side surface of the vertical plate is provided with a slope of 1: 0.01-1: 0.02, the thickness of the top end of the vertical plate is not less than 300mm, and the height of the vertical plate is 8-20 m.
8. The pile foundation joist buttress-type retaining wall of claim 6, wherein: the distance between the buttress plates is 0.4-0.6 times of the height of the vertical plate, the thickness of the buttress plates is 0.1-0.2 times of the distance between two adjacent buttress plates, and the height-width ratio of the buttress plates is 1.5-2.0 m.
9. The pile foundation joist buttress-type retaining wall of claim 6, wherein: the length of the main ribs of the double-row pile foundation, the vertical plate and the wall supporting plate extending into the joist is not less than 35D, and D is the diameter of the main ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022194400.4U CN213741134U (en) | 2020-09-29 | 2020-09-29 | Pile foundation joist counterfort retaining wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022194400.4U CN213741134U (en) | 2020-09-29 | 2020-09-29 | Pile foundation joist counterfort retaining wall |
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| CN213741134U true CN213741134U (en) | 2021-07-20 |
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| CN202022194400.4U Active CN213741134U (en) | 2020-09-29 | 2020-09-29 | Pile foundation joist counterfort retaining wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411802A (en) * | 2021-12-24 | 2022-04-29 | 湖北省交通规划设计院股份有限公司 | Combined pile-joist retaining wall and construction method |
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2020
- 2020-09-29 CN CN202022194400.4U patent/CN213741134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411802A (en) * | 2021-12-24 | 2022-04-29 | 湖北省交通规划设计院股份有限公司 | Combined pile-joist retaining wall and construction method |
| CN114411802B (en) * | 2021-12-24 | 2024-04-26 | 湖北省交通规划设计院股份有限公司 | Combined pile joist retaining wall and construction method |
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