CN207228071U - Concrete dam and its only slurry embankment structure - Google Patents

Abstract

The utility model discloses a kind of concrete dam and stop slurry embankment structure.The only slurry embankment structure includes only slurry dike and corresponding tilt and is arranged on the foundation plane in massif side slope；Inclined slope aspect offers only stock tank on the foundation plane, and the lower part insertion of the only slurry dike is described to be only fixedly linked in stock tank and with only slurry dike.The only slurry dike of the utility model can meet the functional requirement of dam foundation surface grouting, but also with seepage prevention of dam founda sealing effect.

Description

Concrete dam and its only slurry embankment structure

Technical field

It the utility model is related to a kind of concrete dam and embankment structure only starched in surface grouting, belong to hydraulic and hydroelectric engineering construction neck Domain.

Background technology

Due to the shrinkage of concrete material, foundation surface of concrete dams is easy after shrinking especially when foundation plane is steeper Pull open, therefore surface grouting need to be carried out to foundation plane, surface grouting method include drilling pipe laying grouting method, built-in pipe grouting method and Direct bore grouting.No matter which kind of grouting method is used, be both needed to dam foundation face is separated into one or several with only slurry dike small In the closure grouting zonule of certain area.

Embankment structure is only starched in traditional surface grouting：It is trapezoidal coagulation earth embankment that cross section is poured on foundation plane, coagulation Earth embankment is fixed on basement rock by dowel.

Only though slurry dike can meet the functional requirement of dam foundation surface grouting to tradition, for the steeper monolith of foundation plane, dam body Conduct oneself with dignity the pressure very little of vertical dam basal plane orientation, after reservoir filling, the dam foundation easily forms leak paths, scour dam foundation, directly Connect and threaten stablizing for dam safe；At the same time tradition only slurry dike pour on foundation plane, it is necessary to by setting dowel to be anchored in Basement rock solves its stable problem, and working procedure is more.Therefore only starch the dam foundation surface grouting embankment structure and carry out Shape Optimization, In the security and economy important in inhibiting of engineering.

Utility model content

For tradition, only problem and shortage existing for slurry dike, the utility model aim to provide a kind of concrete dam and only slurry dike Structure, only should can meet the functional requirement of dam foundation surface grouting by slurry dike, and stop slurry dike but also with seepage prevention of dam founda sealing effect, enhancing Stability against sliding, reduce drilling and dowel dosage, reduce working procedure.

To achieve these goals, technical solution is used by the utility model：

A kind of only slurry embankment structure of concrete dam, including only slurry dike and corresponding tilt are arranged in massif side slope and build base Face；It is structurally characterized in that inclined slope aspect offers only stock tank, the lower part insertion only stock tank of the only slurry dike on the foundation plane It is interior, and the only stock tank is fixedly linked with only slurry dike.

Thus, the only slurry dike of the utility model had not only possessed the function that tradition only starches dike, but also can take into account dam foundation sealing effect, led to Cross setting and stop stock tank, significantly enhance the stability against sliding for only starching dike, while reduce drilling and dowel dosage, save engineering Expense.

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

In order to improve the stability for only starching dike, the top of the only slurry dike extends vertically upward relative to foundation plane, and only Dike is starched by concrete dam body Bao Rao；The bottom surface of the concrete dam body is fixed together with the foundation plane.The coagulation The earth dam body bag only slurry dike at least upstream side, downstream and the top that refer to only starch dike of having mercy on is concrete dam body.

In order to further improve the anti-slipping property energy for only starching dike, the slot bottom inclined slope aspect of the only stock tank is in tilted layout and slot bottom Multiple cuttings are provided with, the bottom of the only slurry dike is bonded with the cutting to be connected.

Preferably, the only cutting Parallel to the flow direction on stock tank slot bottom is set.Thus, the setting of cutting effectively prevents The stability against sliding of dike is only starched, ensures after shrinking also to not readily disengage from when the massif gradient is steeper.Preferably, the only stock tank Cutting on slot bottom is in step-like setting.It is highly preferred that the only step outside height on stock tank slot bottom is higher than on the inside of step Highly.Sawtooth-shaped steps are consequently formed down, further increase the slip resistance energy for only starching dike.

In order to further improve water-stagnating effect, the top of the only slurry dike is embedded with vertically arranged group stop, should be only The top of lodicule is stretched into the concrete dam body, and the length direction inclined slope aspect of the group stop is set.

In order to ensure only to starch the exhaust performance of dike, the downstream of the only slurry dike is provided with the air discharge duct of inclined slope aspect setting.

Preferably, the foundation plane angle of inclination in the massif side slope is more than 50 °.

The lower part insertion foundation plane of the only slurry dike of the utility model is only fixedly linked in stock tank and with foundation plane.By This eliminates dowel, avoids drilling, reduces cost.

Preferably, the only slurry dike is integrally trapezoidal perpendicular to the top in the section of dam body length direction.

Conceived based on same utility model, the utility model additionally provides a kind of concrete dam, it includes being arranged on a left side Left section, right section in right massif side slope and the stage casing that is arranged at river valley；Described left section and/or right section has the concrete The only slurry embankment structure on dam.

Compared with prior art, the beneficial effects of the utility model are：

1st, the utility model creatively only will be changed to that cutting is embedded by slurry dike, make only to starch dike and possess seepage prevention of dam founda sealing Function；

2nd, in order to strengthen the stability that inclined slope aspect stops slurry dike, dike inclined slope aspect cutting stepped will only be starched；

3rd, the utility model eliminates only slurry dike anchor pole；

4th, the utility model reduces anchor bolt construction process；

5th, the utility model, in only slurry levee crown portion embedment group stop, reserves air discharge duct, makes its satisfaction when pouring only slurry dike The functional requirement of dam foundation surface grouting.

The only slurry dike of the utility model needs to carry out contact filling suitable for the concrete dam such as concrete gravity dam and arch dam The Dam Base Surface of slurry.

Brief description of the drawings

Fig. 1 is that the utility model one embodiment is local perpendicular to dam body length direction（By two sides side）Profile；

Fig. 2 is the only profilograph of the slurry dike perpendicular to water (flow) direction of the utility model；

Fig. 3 is a kind of overall schematic of concrete dam of the utility model.

In figure：

1- only starches dike；2- group stops；3- dam bodys；4- upstreams dam facing；5- water (flow) directions；6- air discharge ducts；7- only starches dike insertion Part；9- dam foundations face；10- original dam foundations face；Left section of 11-；Right section of 12-；13- stage casings；The length direction of X- concrete dams；Y- current Direction, Z- vertical directions.

Embodiment

Describe the utility model in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not conflicting In the case of, the feature in embodiment and embodiment in the utility model can be mutually combined.For sake of convenience, hereinafter such as There are " on ", " under ", "left", "right" printed words, only represent that the upper and lower, left and right direction with attached drawing in itself is consistent, not to structure Play restriction effect.

A kind of concrete dam, as shown in figure 3, including left section 11, right section 12 be arranged in the massif side slope of left and right and setting Stage casing 13 at river valley；Embankment structure is only starched in described left section 11 and right section 12 surface grouting with concrete dam.Such as Fig. 1 institutes Show, the surface grouting of the concrete dam only starches embankment structure and is arranged on building in massif side slope including only slurry dike 1 and corresponding tilt Basal plane, inclined slope aspect offers only stock tank on the foundation plane, should slot bottom of only stock tank be provided with multiple cuttings；The only slurry dike 1 Insertion described be only bonded in stock tank and with the cutting in lower part is connected, and the top of the only slurry dike 1 extends vertically upward, and only starches 1 outsourcing of dike have mercy on concrete dam length direction extension concrete dam body 3；The bottom surface of the concrete dam body 3 and the foundation plane It is fixed together.The lower part insertion foundation plane of the only slurry dike 1 is only fixedly linked in stock tank and with foundation plane.

In order to improve the anti-slipping property energy for only starching dike, the cutting only on stock tank slot bottom is in step-like setting.

In order to improve water-stagnating effect, the top of the only slurry dike 1 is embedded with vertically arranged group stop, the group stop it is upper Portion is stretched into the concrete dam body 3, and the length direction inclined slope aspect of the group stop is set.The downstream for only starching dike 1 It is provided with the air discharge duct 6 of inclined slope aspect setting.

Preferably, the massif side slope is abrupt slope, i.e., the foundation plane angle of inclination in side slope is more than 50 °.

The content that above-described embodiment illustrates should be understood to 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 the utility model has been read, those skilled in the art are new to this practicality The modification of the various equivalent forms of type each falls within the application appended claims limited range.

Claims (10)

1. a kind of only slurry embankment structure of concrete dam, including only slurry dike（1）It is arranged on corresponding tilt in massif side slope and builds base Face；It is characterized in that, inclined slope aspect offers only stock tank, the only slurry dike on the foundation plane（1）Lower part insertion described only starch In groove, and the only stock tank and only slurry dike（1）It is fixedly linked.

2. the only slurry embankment structure of concrete dam according to claim 1, it is characterised in that the only slurry dike（1）Top Extend vertically upward relative to foundation plane, and only slurry dike（1）By concrete dam body（3）Bao Rao；The concrete dam body（3）Bottom Face is fixed together with the foundation plane.

3. the only slurry embankment structure of concrete dam according to claim 1, it is characterised in that the slot bottom of the only stock tank is along slope To being in tilted layout and slot bottom is provided with multiple cuttings, the only slurry dike（1）Bottom be bonded with the cutting be connected.

4. the only slurry embankment structure of concrete dam according to claim 1, it is characterised in that the only quarter on stock tank slot bottom Groove is in step-like setting.

5. the only slurry embankment structure of concrete dam according to claim 3, it is characterised in that the only platform on stock tank slot bottom Rank outside height is higher than step inside height.

6. the only slurry embankment structure of the concrete dam according to any one of claim 1-5, it is characterised in that the only slurry dike （1）Top be embedded with vertically arranged group stop, the concrete dam body is stretched on the top of the group stop（3）It is interior and described The length direction inclined slope aspect of group stop is set.

7. the only slurry embankment structure of the concrete dam according to any one of claim 1-5, it is characterised in that the only slurry dike （1）Downstream be provided with inclined slope aspect setting air discharge duct（6）.

8. the only slurry embankment structure of the concrete dam according to any one of claim 1-5, it is characterised in that the massif side Foundation plane angle of inclination on slope is more than 50 °.

9. the only slurry embankment structure of the concrete dam according to any one of claim 1-5, it is characterised in that the only slurry dike （1）It is integrally trapezoidal perpendicular to the top in the section of dam body length direction.

10. a kind of concrete dam, including left section, right section be arranged in the massif side slope of left and right and the stage casing being arranged at river valley； It is characterized in that, the described left section and/or right section only slurry dike knot with the concrete dam any one of claim 1-9 Structure.