CN209384052U

CN209384052U - One kind borders on the river section ground

Info

Publication number: CN209384052U
Application number: CN201822132853.7U
Authority: CN
Inventors: 何颖; 王广武; 王宏贵; 吴徐华; 娄小勇
Original assignee: PowerChina Zhongnan Engineering Corp Ltd
Current assignee: PowerChina Zhongnan Engineering Corp Ltd
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2019-09-13
Anticipated expiration: 2028-12-19

Abstract

It borders on the river section ground the utility model discloses one kind.The section ground that borders on the river includes roadbed, borders on the river side equipped with Support in roadbed, is equipped with bed course at the top of Support, the embankment protection, barricade, roadbed slope foot being sequentially arranged from direction of bordering on the river to roadbed direction are provided at the top of bed course；The embankment protection and barricade extend each along riverbank.The ground of the utility model has the characteristics that easy for construction, comprehensive treatment effect is good, stability is high.

Description

One kind borders on the river section ground

Technical field

It borders on the river section ground the utility model relates to one kind, is particularly suitable for cut-fill subgrades with bordering on the river weak soil section Base processing and protection against erosion processing, it is specifically a kind of to prevent from roadbed side slope to be washed emptying, differential settlement is reduced, raising partly fills out half Dig a kind of processing technique of subgrade stability.

Background technique

The roadbed that borders on the river is easy to happen slope wash under the long term of water flow, and slope foot is emptied, semi-filling and semi-excavating weak soil section Under the action of differential settlement, easily leads to crevice of roadbed deformation or even roadbed collapses, construction and operation to highway bring huge Big risk.

Currently, mortar rubble masonry pavement is generally set in highway immerseable embankment, it is soft soil roadbed that cement mixing pile is mostly used to handle. Mortar rubble masonry pavement is generally possible to be effectively prevented immersion slope erosion, and cement mixing pile also has soft soil foundation preferably Effect.But for cut-fill subgrades in the weak soil section ground that borders on the river, even if the two joins together not can effectively solve The phenomenon that side slope slope foot under extreme condition washes away, and empties, and differential settlement leads to roadbed settlement, collapsing.

It is excavation cutting on the right side of certain highway section, left side is filled-up ground and has invaded river embankment range, the river embankment Ordinary water level is 2.2 ~ 2.4m, which closes on platform fosse, and be the main water passage of platform fosse, and fill toe is in long-term flow action Lower presence, which is washed, empties slope foot risk.River embankment range is soft soil roadbed, the reachable 10m in weak soil depth part.Since the section is Semi-filling and semi-excavating paragraph, and exist deeper soft soil roadbed below the embankment region of part, sliding is easily generated, crevice of roadbed is caused, It even collapses, brings serious security risk.

Therefore it needs to design one kind and can effectively solve extreme condition slope foot and wash away and draw foot and settlement of subgrade can be inhibited Lead to the sloughing that cracks, improves the comprehensive treatment technique of subgrade stability.

Utility model content

Weak soil section basement process is being bordered on the river and anti-(river water, seawater, lake water) washes away place to solve cut-fill subgrades The problem of reason, the one kind that the utility model is intended to provide border on the river section ground, which has easy for construction, comprehensive treatment effect Well, the features such as stability is high.

To achieve the goals above, the technical scheme adopted by the utility model is

One kind borders on the river section ground, including roadbed, is structurally characterized in that, borders on the river side equipped with Support in roadbed, is propping up Support area top be equipped with bed course, be provided at the top of bed course the embankment protection being sequentially arranged from direction of bordering on the river to roadbed direction, Barricade, roadbed slope foot；The embankment protection and barricade extend each along riverbank.

As a result, by setting Support, and embankment protection, barricade and roadbed slope are set on the bed course at the top of Support Foot, to guarantee the secured and protection against erosion ability of ground.

Embodiment according to the present utility model can also make further optimization to the utility model, and the following are after optimization The technical solution of formation:

Preferably, the cement mixing pile that the Support is vertically arranged by more is formed.It is highly preferred that more cement mixings Stake is arranged at blossom type.

In order to improve the protective capacities of embankment, the side that the embankment protection borders on the river forms slope surface, the top of the embankment protection Portion is equipped with gutter.

Preferably, the paving that the slope surface of the embankment protection is equipped with concrete cushion and is laid on concrete cushion Paste layer.In this way, embankment protection can prevent river (sea, lake) water from washing away.

The slope foot of embankment protection is burst across equipped with stone masonry spats at the slope foot of the embankment protection in order to prevent.

In order to improve the integral strength and bearing capacity of roadbed, the top surface of the bed course is equipped with geotechnical grid.The geotechnique Cell compartment is the two-way Grafting type earth lattice of two layers of monoblock type.

Preferably, the elevation of top surface of the embankment protection is greater than a-hundred-year water level plus the sum of hammed water height.

In order to preferably improve barricade protection against erosion ability, prevent roadbed from being washed away, the barricade is embankment formula barricade.Bed course Upper setting embankment formula barricade, barricade wall bottom are to adapt to blotter, flat slope are set as, after barricade performs, it should be noted that wall is forward and backward right Balance is claimed to banket.

Best, the utility model handles ground using cement mixing pile, one layer of blotter of stake top making.

The utility model includes three key technologies:

First is that berm with superloading is arranged on the outside of barricade, prevents from washing away, can also enhance roadbed overall stability.It is adopted on the outside of barricade It is reinforced with berm with superloading, berm with superloading slope surface is implemented by immerseable embankment scheme.

Second is that the wall bottom of embankment formula barricade is arranged to flat slope to adapt to bed course.

Third is that the working procedure of barricade, symmetrical refilling is constructed before wall, after wall, guarantees barricade stability.

Compared with prior art, the utility model has the beneficial effects that

The ground of the utility model has many advantages, such as that easy for construction, Comprehensive Treatment effect is good, stability is high, has preferable Promotional value.

Detailed description of the invention

Fig. 1 is the protection of the utility model one embodiment, basement process standard section figure；

Fig. 2 is immerseable embankment protection slope foot and cement mixing pile, blotter junction enlarged drawing in Fig. 1；

Fig. 3 is barricade in Fig. 1, blotter, cement mixing pile junction enlarged drawing.

In figure

1- roadbed；2- barricade；3- embankment protection；31- paving layer；32- concrete layer；33- stone masonry spats；4- boundary marker； 5- bed course；51- geotechnical grid；6-；The gutter 7-.

Specific embodiment

The utility model is described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting In the case where, the feature in the embodiments of the present invention and embodiment can be combined with each other.For sake of convenience, hereinafter such as There is "upper", "lower", "left", "right" printed words, only indicates consistent with the upper and lower, left and right direction of attached drawing itself, not to structure Play restriction effect.

One kind borders on the river section ground, as shown in Figure 1-3, including roadbed 1, borders on the river side equipped with Support in roadbed 1, is propping up The top for supportting area is equipped with (rubble) bed course 5, is disposed at the top of (rubble) bed course 5 from direction of bordering on the river to 1 direction of roadbed The embankment protection 3 of arrangement, barricade 2, roadbed 1 slope foot.The embankment protection 3 and barricade 2 extend each along riverbank.Wherein roadbed 1 slope foot is arranged in side of bordering on the river.

As shown in Figure 1, ground is handled using cement mixing pile 6, and cement mixing pile 6 is flat by taking certain certain section of high speed as an example Height is 8m, blossom type arrangement, stake spacing 1.3m.Barricade top making 50cm blotter 5, the top of blotter 5 setting embankment The outside of formula barricade 2, the high 4m of average wall of embankment formula barricade 2, embankment formula barricade 2 is reinforced using berm with superloading, berm with superloading slope Face by immerseable embankment protection 3 scheme implement (with a thickness of 10cm the solid hexagonal block paving layer 31+ of C25 with a thickness of 5cm C15 Stone masonry spats 33 is arranged in micro aggregate concrete bed course 32, lower part), gutter 7 is set on berm with superloading, and gutter 7 is risen Journey is higher than the a-hundred-year+50cm hammed water height of platform fosse, i.e., elevation is at least 4.64m.

Fig. 2 is enlarged drawing at A in Fig. 1, i.e. the slope foot and cement mixing pile 6,5 knot of blotter of immerseable embankment protection 3 Enlarged drawing at conjunction is mainly solved the problems, such as follows by the design:

1) slope protection lower part setting spats can whole slope stability；

2) after spats and blotter 5 overlap, lower part handles globality and reinforces, and also tunable is soft soil roadbed uneven heavy Drop.

Fig. 3 is the partial enlarged view in Fig. 1 at B, i.e. barricade, blotter 5,6 junction enlarged drawing of cement mixing pile.It is logical The total bearing capacity that making blotter 5 can be improved to ground 1 is crossed, setting two layers of geotechnical grid 51 in the top of blotter 5 is reinforced Integral strength and the plate body effect of roadbed, prevent settlement of subgrade from generating reflection crack.By the way that embankment formula barricade is arranged 2, it resists destabilization of roadbed and generates sliding.

Referring to Fig. 1, Fig. 2, Fig. 3, soft soil foundation 1 is handled using cement mixing pile 6 first, is guaranteed outside slope foot at least There is a campshed, one layer of blotter 5 of stake top making after processing is two-way high-strength in two layers of monoblock type of top surface making of blotter 5 Grafting type earth lattice to improve 1 bearing capacity of ground, while can also play the role of coordinating inter-pile soil and pile body deformation.

Embankment formula barricade 2 is performed on blotter 5, after embankment formula barricade 2 performs, it should be noted that the forward and backward symmetrical balance of wall Banket, purpose be it is reinforcing road bed, play the role of resist embankment section roadbed glide because of differential settlement.

It is reinforced on the outside of barricade using berm with superloading, berm slope surface is implemented by immerseable embankment scheme, and immerseable embankment uses 10cm The C15 micro aggregate concrete bed course 32 of the 5cm of the thick solid hexagonal block paving layer 31+ thickness of C25 protects, and stone masonry is arranged in lower part Spats 33, the elevation of immerseable embankment protection 3 are that the a-hundred-year water level of platform fosse adds 50cm hammed water high.

The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the utility model, Rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art are practical new to this The modification of the various equivalent forms of type each falls within the application range as defined in the appended claims.

Claims

The section ground 1. one kind borders on the river, including roadbed (1), which is characterized in that side is bordered on the river equipped with Support in roadbed (1), The top of Support is equipped with bed course (5), is provided at the top of bed course (5) from direction is bordered on the river and is sequentially arranged to roadbed (1) direction Embankment protection (3), barricade (2), roadbed (1) slope foot；The embankment protection (3) and barricade (2) extend each along riverbank.
2. the section ground according to claim 1 that borders on the river, which is characterized in that the water that the Support is vertically arranged by more Mud mixing pile (6) formation.
3. the section ground according to claim 2 that borders on the river, which is characterized in that more cement mixing piles (6) are at blossom type cloth It sets.
4. the section ground according to claim 1 that borders on the river, which is characterized in that the side shape that the embankment protection (3) is bordered on the river At slope surface, the top of the embankment protection (3) is equipped with gutter (7).
5. the section ground according to claim 4 that borders on the river, which is characterized in that in the slope surface of the embankment protection (3) Equipped with concrete cushion (32) and the paving layer (31) being laid on concrete cushion (32).
6. the section ground according to claim 4 that borders on the river, which is characterized in that be equipped at the slope foot of the embankment protection (3) Stone masonry spats (33).
7. the section ground according to claim 1 to 6 that borders on the river, which is characterized in that the top surface of the bed course (5) Equipped with geotechnical grid (51).
8. the section ground according to claim 7 that borders on the river, which is characterized in that the geotechnical grid (51) is two layers of monoblock type Two-way Grafting type earth lattice.
9. the section ground according to claim 1 to 6 that borders on the river, which is characterized in that the embankment protection (3) Elevation of top surface is greater than a-hundred-year water level plus the sum of hammed water height.
10. the section ground according to claim 1 to 6 that borders on the river, which is characterized in that the barricade (2) is embankment Formula barricade.