CN111877368A

CN111877368A - Side slope retaining structure and construction method thereof

Info

Publication number: CN111877368A
Application number: CN202010608479.2A
Authority: CN
Inventors: 李正川; 曾中林; 刘勇; 季学亮; 刘贵应; 彭家贵; 王万值; 谢晓林; 万军; 王庆乐; 戴俊巍
Original assignee: CREEC Chongqing Survey Design and Research Co Ltd
Current assignee: China Railway Eryuan Engineering Group Co Ltd CREEC; CREEC Chongqing Survey Design and Research Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-11-03

Abstract

The invention provides a side slope retaining structure and a construction method thereof. The reinforced concrete bin and the reinforced concrete bottom plate which are distributed in a continuous step-shaped manner form a structural whole, so that the anti-bending reinforced concrete bin is high in bending rigidity and strong in shearing resistance; the bin is filled with a pressure heavy material to increase the self weight, and has the characteristics of slippage resistance and overturn resistance equivalent to a solid structure. The supporting structure has the outstanding advantages of high bending rigidity and strong shearing resistance, the anti-sliding and anti-overturning performances are reliable, the height of the supporting structure is not limited, and the supporting structure can be used in ultrahigh filling slopes with the height of more than 30 meters; and the supporting structure is safe and reliable, mature in construction technology, economic and environment-friendly, has popularization and application prospects, and meets the requirement of environmental protection.

Description

Side slope retaining structure and construction method thereof

Technical Field

The invention belongs to geotechnical engineering, particularly relates to supporting and retaining structure engineering, and particularly relates to a side slope supporting and retaining structure and a construction method thereof.

Background

The method is characterized in that the ultra-high fill side slope encountered by the large-scale field (such as railway station yards, airports, municipal field yards and the like) constructed in mountainous areas is difficult to adopt slope disposal when the terrain or land is limited, the height is effectively treated by adopting retaining measures such as structures of conventional retaining walls, anti-slide piles and the like or combination forms thereof and the like, and the height of the common retaining wall is within 20 meters, so that the common retaining wall is difficult to break through 30 meters.

The supporting and retaining structure of the ultrahigh filling side slope with the height of more than 30 meters has large bending moment and shearing force bearing capacity and prominent problems of skid resistance and overturn resistance, so that a novel supporting and retaining structure suitable for the ultrahigh filling side slope is urgently needed.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art, and the first object of the invention is to provide a supporting structure suitable for an ultrahigh filling side slope. The second purpose of the invention is to provide a construction method of the supporting and retaining structure.

In order to achieve the first purpose, the invention adopts the following technical scheme: the utility model provides a side slope shelves structure, include the bottom plate and with the storehouse section of thick bamboo of bottom plate rigid coupling and be located the bottom plate top, the storehouse section of thick bamboo includes a plurality of sub-storehouse sections that are the notch cuttype distribution along the side slope setting, the cross-section of a plurality of sub-storehouse section of thick bamboos perpendicular to side slope is continuous notch cuttype distribution, all is filled with the ballast material in every sub-storehouse section of thick bamboo, equal and the one-to-one setting of the baffle of perpendicular to slope that all the rigid couplings have a plurality of intervals to set up in every sub-storehouse section of thick bamboo, the quantity of the baffle in every sub-storehouse.

The side slope supporting structure of the technical scheme forms a structural whole by the bin barrel and the bottom plate which are distributed in a stepped manner, the sub bin barrels are layered into a plurality of independent areas by the partition plates, the bin barrel is of a structure in a shape like a Chinese character 'jing', the strength of the bin barrel is increased, the dead weight of the supporting structure can be increased by filling the ballast material, and the supporting structure has the anti-sliding and anti-overturning capacity which is equivalent to that of a solid structure, but the cost is lower. The side slope retaining structure has high bending rigidity and strong shearing resistance, meets the requirements of slippage resistance and overturning resistance, and can be used for the anti-slippage treatment of ultra-high fill side slopes.

In another preferred embodiment of the present invention, the bin is further provided with a plurality of transverse plates arranged at intervals along the height direction. The partition plates are arranged, so that the strength of the bin can be further increased, and the bending rigidity and the shearing resistance of the side slope retaining structure are improved.

In another preferred embodiment of the present invention, the bottom plate and the bin are both formed by pouring reinforced concrete. The structure is safe and reliable, the construction technology is mature, and the method is economic and environment-friendly.

In order to achieve the second purpose, the invention adopts the following technical scheme: a construction method of a side slope retaining structure comprises the following steps:

s1, pouring reinforced concrete on the foundation to form a bottom plate;

s2, pouring reinforced concrete which is distributed in a continuous step-shaped manner and is in a groined shape on the bottom plate to form a bin barrel;

and S3, filling the bin with the heavy material.

In another preferred embodiment of the present invention, the steps S2 and S3 are alternately performed, and the stack is stacked upward by filling the weight material and pouring the weight material for each pouring of the stack having a certain height.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic cross-sectional view of a side slope retaining structure according to a first embodiment.

Fig. 2 is a schematic sectional view a-a in fig. 1.

Fig. 3 is another cross sectional structural diagram of the slope retaining structure according to the first embodiment.

Reference numerals in the drawings of the specification include: the bottom plate 10, the bin 20, the sub-bin 21, the partition plate 22 and the ballast material 30.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

Example one

The embodiment provides a side slope supporting structure, as shown in fig. 1 and fig. 2, in a preferred embodiment, the side slope supporting structure includes a bottom plate 10 and a bin 20 fixedly connected to the bottom plate 10 and located above the bottom plate 10, the bottom plate 10 and the bin 20 are both formed by pouring reinforced concrete, the bin 20 includes a plurality of sub-bins 21 arranged along a side slope and distributed in a continuous ladder shape, and preferably, the plurality of sub bins 21 are distributed in a continuous ladder shape perpendicular to a cross section of the side slope. In fig. 1 and 2, five sub-cartridges 21 are provided, the heights of the five sub-cartridges 21 are sequentially increased, and the five sub-cartridges 21 are distributed in a continuous step shape from low to high.

Each sub-silo 21 is provided with a plurality of partition plates 22 which are arranged at intervals and perpendicular to the slope, the number of the partition plates 22 in each sub-silo 21 is equal and the partition plates 22 are arranged in one-to-one correspondence, for example, in fig. 2, each sub-silo 21 is provided with six partition plates 22 which are distributed at equal intervals, so that the silo 20 is in a # -shaped structure, the bending rigidity and the shearing resistance are further improved, and in the embodiment, the silo 20 in the # -shaped structure is also formed by pouring reinforced concrete. It should be noted that, in practice, the partition plates in two adjacent sub-cartridges 21 may be staggered.

In an embodiment, each sub-cartridge 21 is filled with a weight material 30 to increase the self-weight. The ballast material 30 may be crushed stone, soil, or the like, and in practice, excavated rock soil may be filled in the sub-silo 21.

In another preferred embodiment, as shown in fig. 3, a plurality of horizontal plates 23 are further disposed in the bin 20 at intervals along the height direction, for example, one horizontal plate 23 is disposed at intervals of eight meters, and three horizontal plates 23 are disposed in fig. 3.

Example two

The embodiment provides a construction method of a side slope retaining structure in the first embodiment, which includes the following steps:

and S1, pouring reinforced concrete on the foundation to form the bottom plate 10.

And S2, pouring continuous reinforced concrete distributed in a step shape on the bottom plate 10 to form the silo 20. Wherein the silo 20 is formed of reinforced concrete in a shape of a Chinese character jing.

S3, the cartridge 20 is filled with the weight material 30.

For convenience of construction, the steps S2 and S3 may be alternately performed, and each time the bin 20 with a certain height (for example, eight meters) is poured, the ballast material 30 is filled, and then the separated by the transverse plate 23; then, the bin 20 with a certain height is poured, and is stacked upwards. After the ballast material 30 fills the cartridge 20, the cartridge 20 may be finally capped with concrete.

The reinforced concrete bin and the reinforced concrete bottom plate 10 which are distributed in a continuous step-shaped manner form a structural whole, so that the reinforced concrete bin is high in bending rigidity and strong in shearing resistance; the bin 20 is filled with a heavy material 30 to increase the self weight, and has the characteristics of slippage resistance and overturn resistance equivalent to a solid structure. The supporting structure has the outstanding advantages of high bending rigidity and strong shearing resistance, the anti-sliding and anti-overturning performances are reliable, the height of the supporting structure is not limited, and the supporting structure can be used in ultrahigh filling slopes with the height of more than 30 meters; and the supporting structure is safe and reliable, mature in construction technology, economic and environment-friendly, has popularization and application prospects, and meets the requirement of environmental protection.

In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a side slope shelves structure, its characterized in that, include the bottom plate and with the silo of bottom plate rigid coupling and be located the bottom plate top, the silo includes a plurality of sub-silos that are the notch cuttype distribution that set up along the side slope, the cross-section of a plurality of sub-silos perpendicular to side slopes is continuous notch cuttype distribution, every all be filled with the ballast material in the sub-silo, every equal and the one-to-one setting of the baffle of perpendicular to slope that equal rigid coupling has a plurality of intervals to set up in the sub-silo, every the quantity of the baffle in the sub-silo is equal and the one-to-one sets up.

2. The structure of claim 1, wherein the bin further comprises a plurality of transverse plates spaced apart in a height direction.

3. A side slope retaining structure as claimed in claim 1 or claim 2, wherein said floor and said bin are formed from reinforced concrete.

4. A construction method of the side slope retaining structure of any one of claims 1 to 3, comprising the steps of:

s1, pouring reinforced concrete on the foundation to form the bottom plate;

s2, pouring reinforced concrete which is distributed in a continuous step shape and is in a shape like a Chinese character 'jing' on the bottom plate to form the bin barrel;

and S3, filling the bin with the heavy material.

5. The method for constructing a side slope retaining structure according to claim 4, wherein the steps S2 and S3 are alternately performed, and wherein each time a certain height of a bin is poured, the bin is filled with a weight material, and then the bin is poured to a certain height, and thus the bins are stacked upward.