CN107165174B - Chair type portal support structure - Google Patents
Chair type portal support structure Download PDFInfo
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- CN107165174B CN107165174B CN201710367436.8A CN201710367436A CN107165174B CN 107165174 B CN107165174 B CN 107165174B CN 201710367436 A CN201710367436 A CN 201710367436A CN 107165174 B CN107165174 B CN 107165174B
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- pile
- supporting
- piles
- support
- slope
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention relates to the field of slope support, and discloses a chair-type portal support structure which comprises support piles and connecting beams, wherein each support pile comprises a front support pile and a rear support pile, the lower end of the front support pile is embedded in a rock-soil layer close to the slope bottom of a side, the upper end of the front support pile extends to a step platform above the slope bottom of the side, one end of the rear support pile is embedded in the rock-soil layer close to the slope top, the upper end of the rear support pile extends to the slope top, one end of each connecting beam is connected with the pile top of the front support pile, and the other end of each connecting beam is connected with the middle of the rear support pile. Through setting up the tie-beam, couple together preceding fender pile and back fender pile effectively, improve its support system rigidity and support the degree of depth, then can be used to the great side slope of excavation degree of depth to it is reliable to support the quality, can effectually prevent that the side slope from warping.
Description
Technical Field
The invention relates to the field of slope support, in particular to a stepped mountain slope support.
Background
The side slope is the most common natural geological environment in engineering activities, and with the increasing of large key engineering projects, the side slope support plays an extremely important role in engineering
At present, the slopes above and below the step platform are separated and supported by support piles respectively in the step mountain slope supporting process, namely, the slopes above the step platform are supported firstly, and then the slopes below the step platform are supported.
In the prior art, because single support piles are adopted, the support rigidity is low, the method cannot be used for excavating the side slope with larger depth, and the stepped platform rock-soil body is not fully utilized to balance the soil pressure, so that the method causes larger waste and is not economical.
Disclosure of Invention
The invention aims to provide a chair type portal support structure, and aims to solve the problem that a step type mountain slope support structure in the prior art is low in support rigidity and cannot be used for excavating a slope with a large depth.
The chair type portal supporting structure comprises supporting piles and connecting beams, wherein each supporting pile comprises a front supporting pile and a rear supporting pile, the lower end of each front supporting pile is embedded in a rock-soil layer close to the slope bottom, the upper end of each front supporting pile extends to a step platform above the slope bottom, one end of each rear supporting pile is embedded in the rock-soil layer close to the slope top, the upper end of each rear supporting pile extends to the slope top, one end of each connecting beam is connected with the pile top of each front supporting pile, and the other end of each connecting beam is connected with the middle part of each rear supporting pile.
Further, the fender pile includes a plurality of preceding fender pile and a plurality of back fender pile, it is a plurality of preceding fender pile is the campshed and arranges, and is a plurality of back fender pile is the campshed and arranges, and is a plurality of the pile bolck of preceding fender pile is connected with the front crown roof beam, the one end of tie-beam with the front crown roof beam is connected.
Furthermore, the middle parts of the rear supporting piles are connected with a waist beam, and the other end of the connecting beam is connected with the waist beam.
Furthermore, a rear crown beam is arranged at the top of the slope, and the pile tops of a plurality of rear support piles are connected with the rear crown beam.
Further, the connecting beam is horizontally connected to the front supporting piles and the rear supporting piles.
Furthermore, the front support piles are vertically embedded in the rock-soil layer, and the rear support piles are vertically embedded in the rock-soil layer.
Compared with the prior art, the chair-type portal support structure has the advantages that the front support pile and the rear support pile are effectively connected through the connecting beam arranged between the front support pile and the rear support pile, one end of the connecting beam is connected with the pile top of the front support pile, the other end of the connecting beam is connected with the middle part of the rear support pile, the rigidity of a support system of the support pile is improved, the construction is simple, easy and convenient, the construction efficiency is high, the construction period is short, the support strength and the support depth are improved, the chair-type portal support structure can be used for excavating a side slope with large excavation depth, the support quality is safe and reliable, and the deformation of the side slope can be effectively prevented.
Drawings
Fig. 1 is a schematic front view of a chair-type portal support structure provided in an embodiment of the present invention;
fig. 2 is a schematic top view of a chair-type portal support structure provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
Referring to fig. 1-2, preferred embodiments of the present invention are provided.
The chair-type portal support structure provided by the invention effectively solves the problem that the existing support cannot be used for excavating a slope with larger depth due to the fact that single support piles are adopted, and large waste is caused and is not economical due to the fact that the stepped platform rock-soil body is not fully utilized to balance soil pressure.
Chair formula portal supporting construction, including fender pile and tie-beam 4, the fender pile includes preceding fender pile 1 and back fender pile 2, 1 lower extreme of preceding fender pile inlays in the ground layer that is close to the side slope bottom, preceding fender pile upper end extends to the ladder platform, 2 lower extremes of back fender pile inlay in the ground layer that is close to the side slope top, back fender pile upper end extends to the side slope top, preceding fender pile 1 and back fender pile 2 can effectually bear horizontal pressure of ground and gravity, thereby strengthen its effect of strutting.
Moreover, one end of the connecting beam 4 is connected with the top of the front supporting pile 1, and the other end of the connecting beam is connected with the middle of the rear supporting pile 2, so that the front supporting pile and the rear supporting pile 2 are effectively connected, the supporting rigidity of the front supporting pile and the rear supporting pile is improved, the construction is simple, easy and convenient, the construction efficiency is high, the construction period is short, the supporting strength and the supporting depth of the supporting pile are improved, the side slope with large excavation depth can be used, the supporting quality is reliable in the supporting connection mode, and the deformation of the side slope can be effectively prevented.
In this embodiment, the fender pile includes a plurality of preceding fender piles 1 and a plurality of back fender piles 2, a plurality of preceding fender piles 1 are the campshed and arrange, a plurality of back fender piles 2 are the campshed and arrange, the pile bolck of a plurality of preceding fender piles 1 is connected with preceding guan liang 3, the one end and the preceding guanliang 3 of tie-beam 4 are connected, the effect that can reach like this is, let tie-beam 4 and the abundant connection of preceding fender pile 1, improve its stability, and tie-beam 4 and preceding fender pile 1 are through the crowded effort of level and the vertical shear force of guanliang 3 formation, can strengthen the firm of connecting between them, effectual 1 top production of preceding fender pile that prevents collapses. It should be noted that the top of the pile must be chiseled off during the construction of the crown beam 3 in order not to affect the stability of the connection.
In order to strengthen the stability of connecting beam 4 and back fender pile 2 being connected, the connecting beam 4 other end adopts waist rail 5 to be connected with back fender pile 2, set up a horizontal roof beam at the middle part of back fender pile 2, this horizontal roof beam is waist rail 5, connecting beam 4 one end is fixed on waist rail 5, can make connecting beam 4 become a line to the support of back fender pile 2 from a point like this, thereby improve the stability of connecting beam 4 and back fender pile 2 being connected, make supporting construction more have rigidity, improve its resistance to deformation, increase its life.
In this embodiment, back crown beam 6 has been arranged at back fender pile 2 top, and back fender pile 2 adopts back crown beam 6 construction connection with the side slope top, and such benefit is that, makes back fender pile 2 more firm with the side slope top is connected, increases the effect of strutting of back fender pile 2, prevents 2 top edges of back fender pile simultaneously and produces the collapse, influences safety.
In this embodiment, the connecting beam 4 is horizontally connected to the front supporting pile 1 and the rear supporting pile 2, so that the supporting structure has better supporting capability, from top to bottom, because the connecting beam 4 is horizontally connected, the front supporting pile 1 and the connecting beam 4 are connected into a whole through the crown beam 3, and the rear supporting pile 2 and the rear supporting pile are connected into a whole through the waist beam 5, the upper part of the connecting beam 4 can bear certain rock soil, and the rock soil and the rear supporting pile 2 are matched with each other, so that the supporting capability of the rear supporting pile 2 is improved, and the supporting effect of the whole structure is improved.
In this embodiment, preceding fender pile 1 is vertical to be inlayed in the ground layer, 2 piles are vertical to be inlayed in the ground layer for back support, from top to bottom, because preceding fender pile 1 and back fender pile 2 are connected respectively to tie-beam 4, so, tie-beam 4 lower part, preceding fender pile 1 is connected as a whole through hat beam 3 with tie-beam 4, tie-beam 4 is connected as a whole through waist rail 5 with back fender pile 2, tie-beam 4 combines with ground with back fender pile 2 behind the preceding support and forms the very big gravity type fender system of rigidity, prop up and keep off high side slope, and like this, great improvement supporting construction's supporting capacity, make its effectual side slope that prevents warp.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The chair type portal supporting structure is characterized by comprising supporting piles and connecting beams, wherein each supporting pile comprises a front supporting pile and a rear supporting pile, the lower end of the front supporting pile is embedded in a rock-soil layer close to the bottom of a side slope, the upper end of the front supporting pile extends to a step platform above the bottom of the side slope, one end of each rear supporting pile is embedded in the rock-soil layer close to the top of the side slope, the upper end of each rear supporting pile extends to the top of the side slope, one end of each connecting beam is connected with the top of the front supporting pile, and the other end of each connecting beam is connected with the middle part of the rear supporting pile; the front supporting piles are vertically embedded in the rock-soil layer, the rear supporting piles are vertically embedded in the rock-soil layer, and the embedding depth of the rear supporting piles is greater than that of the front supporting piles; the other end of the connecting beam is embedded and fixed with the rear supporting pile; a transverse beam is arranged in the middle of the rear supporting pile, the transverse beam is a waist beam, and the other end of the connecting beam is connected with the waist beam; the top of the front support pile extends upwards to the upper side of the rock-soil layer of the side slope bottom, the connecting beam is located above the rock-soil layer of the side slope bottom, and the connecting beam is located below the top of the side slope.
2. The chair type portal supporting structure of claim 1, wherein the supporting piles include a plurality of the front supporting piles and a plurality of the rear supporting piles, the plurality of the front supporting piles are arranged in a row pile, the plurality of the rear supporting piles are arranged in a row pile, a front crown beam is connected to a pile top of the plurality of the front supporting piles, and one end of the connection beam is connected to the front crown beam.
3. The chair type portal supporting structure of claim 1, wherein a slope top is provided with a rear crown beam, and a pile top of a plurality of the rear piles is connected to the rear crown beam.
4. The chair portal support structure of claim 1, wherein the connection beam is horizontally connected to the front and rear piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710367436.8A CN107165174B (en) | 2017-05-23 | 2017-05-23 | Chair type portal support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710367436.8A CN107165174B (en) | 2017-05-23 | 2017-05-23 | Chair type portal support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165174A CN107165174A (en) | 2017-09-15 |
| CN107165174B true CN107165174B (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710367436.8A Active CN107165174B (en) | 2017-05-23 | 2017-05-23 | Chair type portal support structure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726639A (en) * | 2020-12-22 | 2021-04-30 | 广州市设计院 | Slope supporting structure and construction method thereof |
| CN113513032A (en) * | 2021-03-23 | 2021-10-19 | 深圳市工勘岩土集团有限公司 | Three-row pile gravity dam combined retaining structure for filled high slope |
| CN114250795A (en) * | 2021-12-07 | 2022-03-29 | 任斌 | Slope protection supporting device and slope protection supporting method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202989932U (en) * | 2012-12-05 | 2013-06-12 | 昆明理工大学 | H-shaped double-row pile structure with large inclined angle prestressed anchor cables |
| CN203096745U (en) * | 2013-01-18 | 2013-07-31 | 江苏鸿基科技有限公司 | Multi-row pile foundation pit supporting structure |
| CN206941615U (en) * | 2017-05-23 | 2018-01-30 | 深圳宏业基岩土科技股份有限公司 | Chair form door frame supporting construction |
-
2017
- 2017-05-23 CN CN201710367436.8A patent/CN107165174B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202989932U (en) * | 2012-12-05 | 2013-06-12 | 昆明理工大学 | H-shaped double-row pile structure with large inclined angle prestressed anchor cables |
| CN203096745U (en) * | 2013-01-18 | 2013-07-31 | 江苏鸿基科技有限公司 | Multi-row pile foundation pit supporting structure |
| CN206941615U (en) * | 2017-05-23 | 2018-01-30 | 深圳宏业基岩土科技股份有限公司 | Chair form door frame supporting construction |
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| Publication number | Publication date |
|---|---|
| CN107165174A (en) | 2017-09-15 |
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