CN212534196U - Retaining structure of soil filling slope - Google Patents
Retaining structure of soil filling slope Download PDFInfo
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- CN212534196U CN212534196U CN202020724142.3U CN202020724142U CN212534196U CN 212534196 U CN212534196 U CN 212534196U CN 202020724142 U CN202020724142 U CN 202020724142U CN 212534196 U CN212534196 U CN 212534196U
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Abstract
The application discloses side slope's that bankets retaining structure, a serial communication port, include: a bored pile located at least partially in a stable formation; the bearing platform is connected between the upper parts of at least two drilled piles; and the supporting and blocking part is fixed on the bearing platform, is positioned at the outer side of the soil filling side slope and plays a role in supporting and blocking the soil filling side slope. The utility model provides a retaining structure of side slope fills out has the strong ability of antidumping, and the degree of safety is high, advantage that structural stability is good.
Description
Technical Field
The application relates to the field of geotechnical engineering, in particular to a retaining structure of a soil filling slope.
Background
With the rapid development of national economy, a large amount of soil filling high slope projects are inevitably generated, higher requirements are put on retaining protection measures, and higher reliability, safety and stability are required. For a long time, the retaining structure of the soil-filling side slope is a key point and a difficult point in the geotechnical engineering construction and operation stages, side slope instability accidents occur sometimes, huge social and personal property losses are often caused, the consequences are very serious, meanwhile, the conventional retaining structure has high requirements on foundation conditions and strict requirements on the surrounding environment, and is not beneficial to secondary field development.
The retaining structure of current side slope mainly takes retaining structures such as gravity type retaining wall, counterfort formula retaining wall, cantilever type retaining wall, stake board-like retaining wall to develop the side slope and keeps off to combine to slow down the side slope, strengthen measures such as cutting drainage, afforestation measure, domatic protection and develop the side slope protection, the retaining structure of current side slope has the anti-overturning ability poor, and the degree of safety is low, the poor problem of structural stability.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiments of the present application are expected to provide a retaining structure for a soil-filled slope, so as to solve the problems of poor anti-overturning capability, low safety and poor structural stability of the retaining structure.
In order to achieve the above object, a retaining structure of a fill slope provided in an embodiment of the present application includes:
a bored pile located at least partially in a stable formation;
the bearing platform is connected between the upper parts of at least two drilled piles; and
and the supporting piece is fixed on the bearing platform, is positioned at the outer side of the soil filling side slope and plays a role in supporting and blocking the soil filling side slope.
Further, the retaining member includes:
the base is fixed on the bearing platform; and
the standing wall is connected on the base, the base is followed the wall of standing the wall outwards protrusion forms the toe board.
Furthermore, the wall back of the vertical wall is in a downward inclined type, and the slope of the wall back is 1: 0.3-1: 0.1.
Furthermore, the top surface of the base is a toe back, and the slope of the toe back is 1: 0.3-1: 0.1.
Furthermore, the pile diameter of the drilled pile is A, wherein A is more than or equal to 0.6m and less than or equal to 1.25m, and the distance between every two adjacent drilled piles is 2.5-4.5 m.
Further, the drilled piles are arranged in rows along the soil filling slope in the transverse direction.
Furthermore, at least one structural seam is formed at the joint between the bearing platforms.
Furthermore, the width of the structural seam is B, wherein B is more than or equal to 0 and less than or equal to 2 cm.
Furthermore, one or more of asphalt reinforcement, asphalt and asphalt wood board are filled in the structural joint, the filling depth is C, and C is more than or equal to 0 and less than or equal to 20 cm.
Further, the thickness of the bearing platform is D, wherein D is more than or equal to 0.8 and less than or equal to 1.5 m.
Further, the bored pile is C35 reinforced concrete.
Further, the bearing platform is made of C35 reinforced concrete.
The utility model provides a pair of fill out retaining structure of side slope utilizes bored pile, cushion cap and the rigid connection between the retaining piece, promotes the intensity and the stability of retaining structure, has the antidumping ability reinforce, and the degree of safety is high, advantage that structural stability is good.
Drawings
Fig. 1 is a schematic structural diagram of a multi-stage retaining structure in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a retaining structure in an embodiment of the present application; and
fig. 3 is a schematic structural diagram of a retaining member of a retaining structure in an embodiment of the present application.
Description of the reference numerals
1. Drilling a pile; 2. a bearing platform; 3. a support member; 4. a foundation pit; 5. filling soil; 6. a foundation ground; 30. a base; 31. erecting a wall; 300. a toe plate; 301. the back of the toe; 310. a wall back; 311. a wall surface; A. pile diameter; D. the thickness of the bearing platform.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
In the description of the present application, the "upper", "lower", "top" and "bottom" orientation or position relationship is the normal use state of the retaining structure of the fill side slope, as shown in fig. 1, the "transverse" is the left-right direction of fig. 1, and the "inner" and "outer" refer to the fill side slope, and the direction toward the fill side slope is "inner", otherwise "outer". It is to be understood that such directional terms are merely used to facilitate describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must be constructed and operated in a particular orientation and therefore should not be considered as limiting the invention.
As part of the inventive concept of the present application, before describing the embodiments of the present application, it is necessary to analyze the defects existing in the retaining structure in the prior art, and find out a solution to the defects of the prior art through reasonable analysis, so as to obtain the technical solution of the embodiments of the present application.
In the prior art, the conventional filling side slope retaining engineering mainly adopts retaining structures such as a gravity retaining wall, a counterfort retaining wall, a cantilever retaining wall and a pile plate retaining wall to carry out side slope retaining, and combines measures such as slope relieving, water cut and drainage strengthening, greening measures and slope surface protection to carry out side slope protection, and the conventional retaining structure has the following common characteristics: the protection height is limited, the anti-slip and anti-overturn capabilities are low, and the safety degree is low; the requirement on the surrounding environment is strict, the adaptability of complex site conditions is poor, and the comprehensive development and utilization of the terrace are limited by more conditions; the displacement control and the quality control are difficult, the reliability is low, the construction period is long, and the process requirements are complex; the structure cost is high, and the later maintenance is difficult.
The supporting and retaining structure for the filled slope provided by the embodiment of the application is shown in fig. 1 and comprises a bored pile 1, a bearing platform 2 and a supporting and retaining member 3. The bored piles 1 are at least partially positioned in a stable stratum, the bearing platform 2 is connected between the upper parts of at least two bored piles 1, and the retaining piece 3 is fixed on the bearing platform 2 and positioned outside the filled slope to play a retaining role on the filled slope.
Because bored pile 1 is arranged in bearing the whole vertical external load that the retaining structure bore, so bored pile 1 part is located stable stratum at least, prevents that the stratum unstability from leading to bored pile 1 unstability, leads to retaining structure inefficacy, and then causes the emergence of slope unstability calamity. The rigid connection between each bored pile 1 is strengthened through the bearing platform 2, and the structural stability of the retaining structure is improved. The supporting piece 3 plays a role in supporting and blocking the filled slope, bears external loads such as the filled slope and the like, prevents the occurrence of slope instability disasters, can form an effective platform on the upper part of the supporting and blocking structure, can be developed and utilized by combining engineering characteristics, is used as a field land for structures such as roads, houses and the like, has the advantage of efficiently utilizing the land, and has remarkable economic benefit. The utility model provides a keep off structure utilizes drilled pile 1, and 2 and the rigid connection who keeps off between 3, promotes the intensity and the stability of keeping off structure, has that antidumping ability is strong, and the degree of safety is high, advantage that structural stability is good.
In an embodiment of the present application, referring to fig. 2 and 3, the retaining member 3 includes a base 30 and a standing wall 31, the base 30 is fixed on the platform 2, for example, the base 30 is rigidly connected to the platform 2, the standing wall 31 is connected to the base 30, and the base 30 protrudes outward along a wall 311 of the standing wall 31 to form a toe board 300. The base 30 protrudes outwards along the wall 311 of the vertical wall 31 to form a toe board 300, and the base 30 bears the pressure of a part of the supporting and blocking piece 3, so that the transverse bearing capacity of the supporting and blocking structure is increased, the stress performance of the supporting and blocking structure is improved, and the structural stability of the supporting and blocking structure is improved.
In other embodiments, as shown in fig. 3, the base 30 projects inwardly along the back wall 310 of the upstanding wall 31 to form a heel plate; or base 30, projects both outwardly along wall 311 of upright wall 31 to form toe board 300 and inwardly along wall back 310 of upright wall 31 to form heel board.
In an embodiment of the present application, referring to fig. 2 and 3, the wall back 310 of the vertical wall 31 is inclined downward, and the slope of the wall back 310 is 1: 0.3-1: 0.1. In the cross section of the supporting and blocking piece 3, the part directly contacted with the soil filling side slope is called a wall back 310, the wall back 310 is in a downward inclined type, the slope of the wall back 310 is 1: 0.3-1: 0.1, such as 1:0.3, 1:0.2 or 1:0.1, the soil filling construction is facilitated, the wall back 310 of the vertical wall 31 is in the downward inclined type, the stress of the vertical wall 31 is improved, the vertical wall 31 is subjected to the vertical load of the soil filling side slope, the structural stability of the supporting and blocking piece 3 is improved, the transverse bearing capacity of the supporting and blocking piece 3 is further improved, and the structural stability of the supporting and blocking piece structure is further improved. The inclined type means that the wall back inclines outwards from bottom to top. Correspondingly, the inclined upward type means that the wall back inclines inwards from bottom to top.
In one embodiment, referring to fig. 2 and 3, the top surface of the base 30 is a toe back 301, and the slope of the toe back 301 is 1: 0.3-1: 0.1. The slope of the toe back 301 is 1: 0.3-1: 0.1, such as 1:0.3, 1:0.2 or 1:0.1, the slope design of the toe back 301 is beneficial to the construction of filling soil, the toe back 301 of the base 30 adopts a certain slope, the stress of the base 30 and the vertical wall 31 is improved, the transverse supporting force of the base 30 to the vertical wall 31 is improved, the structural stability of the supporting piece 3 is increased, the transverse bearing capacity of the supporting piece 3 is improved, and therefore the structural stability of the supporting piece structure is improved.
In one embodiment, referring to fig. 2, the diameter of the bored pile 1 is a, where a is 0.6m or more and 1.25m or less, and the distance between two adjacent bored piles 1 is 2.5m to 4.5 m. Bored pile 1 is used for bearing the whole vertical external load that a retaining structure bore, so bored pile 1's inefficacy will lead to the inefficacy of whole retaining structure, and then causes the emergence of slope unstability calamity, so bored pile 1's intensity is very important. The stake footpath undersize of bored pile 1 easily causes bored pile 1 to appear the crack and damage, and the stake footpath of bored pile 1 is too big then be unfavorable for mechanical hole making in the work progress, if 60cm is less than or equal to A and is less than or equal to 125cm, not only can guarantee the intensity of bored pile 1 self structure, still is favorable to the later stage construction. The distance between two adjacent bored piles 1 is 2.5m to 4.5m, for example, 2.5m, 3m, 3.5m, 4m or 4.5m, the strength and stability of the retaining structure are affected by an excessively large distance between two adjacent bored piles 1, and the construction efficiency and the material waste are affected by an excessively small distance between two adjacent bored piles 1.
In one embodiment, the bored pile 1 is lined up in a row transversely along the fill side, as shown in fig. 1 and 2. The drilled piles 1 are arranged in single row, double row or multiple rows, and the multiple rows of piles can also form quincunx piles. The piles are arranged in rows to improve the load bearing capacity of the supporting and retaining structure and prevent the drilled piles 1 from exceeding the stress limit to be damaged.
In one embodiment, at least one structural seam is formed at the joint between the bearing platforms 2. The structural joint is a general term of an expansion joint, a settlement joint, a quakeproof joint and the like which are arranged between two adjacent buildings or between two parts of the buildings for avoiding temperature expansion and contraction, foundation settlement, earthquake collision and the like. The structural joint is an expansion joint and a settlement joint which are arranged at proper positions of the bearing platform 2 for avoiding the longitudinal damage of the structure caused by temperature stress and uneven settlement. Meanwhile, corresponding structural seams are also arranged at corresponding positions of the filled slope surface, so that the influence of the settlement or the expansion of the bearing platform 2 or the filled slope surface on each other is prevented.
In one embodiment, the width of the structural joint is B, wherein B is more than or equal to 0 and less than or equal to 2cm, one or more of asphalt twisted ribs, asphalt and asphalt wood boards are filled in the structural joint, the filling depth is C, and C is more than or equal to 0 and less than or equal to 20 cm.
The structural joint width is B, wherein B is more than or equal to 0 and less than or equal to 2cm, and the structural joint width is generally determined by calculation according to factors such as actual application scenes, geological conditions of the side slope, natural conditions and the like. In order to avoid foreign matters entering the structural joint to block the structural joint and damage the structural joint caused by rainwater entering the structural joint, one or more of asphalt reinforcement, asphalt and asphalt wood boards are filled in the structural joint.
In one embodiment, and as shown in FIG. 2, the platform 2 has a thickness D, where D is 0.8 ≦ D ≦ 1.5m, such as 0.8m, 0.9m, 1.0m, 1.1m, 1.2m, 1.3m, 1.4m, or 1.5 m. Bearing platform 2 is connected on the upper portion of bored pile 1, strengthens the rigid connection between each bored pile 1, improves the structural stability of retaining structure. The support member 3 comprises a base 30 and a vertical wall 31, wherein the base 30 is fixed on the bearing platform 2, the vertical wall 31 is connected on the base 30, and the bearing platform 2 bears all vertical external loads borne by the support member 3. When cushion cap 2 thickness undersize, surpass cushion cap 2 and receive the load limit time cushion cap 2 can become invalid, cushion cap 2 became invalid and will lead to the inefficacy of whole retaining structure, and then cause the emergence of side slope unstability calamity, when cushion cap 2 thickness is too big, can increase extra vertical load to bored pile 1, and extravagant material.
In one embodiment, bored pile 1 is C35 reinforced concrete and cap 2 is C35 reinforced concrete. The C35 reinforced concrete represents that the concrete strength grade of the reinforced concrete structure is C35, the concrete strength grades are many, and the concrete strength grade of the reinforced concrete structure is generally determined by calculation according to the actual application condition.
The various embodiments/implementations provided herein may be combined with each other without contradiction.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. The utility model provides a retaining structure of side slope fills out which characterized in that includes:
a bored pile located at least partially in a stable formation;
the bearing platform is connected between the upper parts of at least two drilled piles; and
and the supporting piece is fixed on the bearing platform, is positioned at the outer side of the soil filling side slope and plays a role in supporting and blocking the soil filling side slope.
2. The retaining structure of claim 1, wherein the retaining member comprises:
the base is fixed on the bearing platform; and
the standing wall is connected on the base, the base is followed the wall of standing the wall outwards protrusion forms the toe board.
3. The supporting and retaining structure of claim 2, wherein the wall back of the vertical wall is inclined downwards, and the slope of the wall back is 1: 0.3-1: 0.1; and/or the presence of a gas in the gas,
the top surface of the base is a toe back, and the slope of the toe back is 1: 0.3-1: 0.1.
4. The retaining structure of claim 1, wherein the diameter of the drilled pile is A, wherein A is more than or equal to 0.6m and less than or equal to 1.25m, and the distance between two adjacent drilled piles is 2.5-4.5 m.
5. The retaining structure of claim 1, wherein the drilled piles are arranged in rows transversely along the fill slope.
6. The retaining structure of claim 1, wherein the connection between the platforms defines at least one structural seam.
7. The retaining structure of claim 6, wherein the structural seam width is B, wherein B is greater than or equal to 0 and less than or equal to 2 cm; and/or the presence of a gas in the gas,
one or more of asphalt twisted bars, asphalt and asphalt wood boards are filled in the structural joint, the filling depth is C, and C is more than or equal to 0 and less than or equal to 20 cm.
8. The retaining structure of claim 1, wherein the platform has a thickness D, wherein D is 0.8-1.5 m.
9. The retaining structure of any one of claims 1-8, wherein the bored pile is C35 reinforced concrete; and/or the presence of a gas in the gas,
the bearing platform is made of C35 reinforced concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020724142.3U CN212534196U (en) | 2020-05-06 | 2020-05-06 | Retaining structure of soil filling slope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020724142.3U CN212534196U (en) | 2020-05-06 | 2020-05-06 | Retaining structure of soil filling slope |
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| CN212534196U true CN212534196U (en) | 2021-02-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576479A (en) * | 2020-05-06 | 2020-08-25 | 中铁第四勘察设计院集团有限公司 | Retaining structure of filling slope and construction method |
| CN113502826A (en) * | 2021-07-15 | 2021-10-15 | 湖南化工地质工程勘察院有限责任公司 | Novel fill side slope retaining structure and construction method and application thereof |
-
2020
- 2020-05-06 CN CN202020724142.3U patent/CN212534196U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576479A (en) * | 2020-05-06 | 2020-08-25 | 中铁第四勘察设计院集团有限公司 | Retaining structure of filling slope and construction method |
| CN113502826A (en) * | 2021-07-15 | 2021-10-15 | 湖南化工地质工程勘察院有限责任公司 | Novel fill side slope retaining structure and construction method and application thereof |
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