CN206220054U - A kind of structure for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer - Google Patents
A kind of structure for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer Download PDFInfo
- Publication number
- CN206220054U CN206220054U CN201621299869.1U CN201621299869U CN206220054U CN 206220054 U CN206220054 U CN 206220054U CN 201621299869 U CN201621299869 U CN 201621299869U CN 206220054 U CN206220054 U CN 206220054U
- Authority
- CN
- China
- Prior art keywords
- strand wires
- steel strand
- insulation layer
- rotating mechanism
- dam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model discloses a kind of structure for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer, in the top of dam body upstream face, one horizontal Cantilever Beams are set, the top of reservoir level when Cantilever Beams are located at winter operation, along Cantilever Beams upper surface mutually embedding plurality of steel plates across a certain distance, rotating mechanism is installed on steel plate, the one ends wound of steel strand wires is fixed on rotating mechanism, the other end lifting prestretching casting pig of steel strand wires, directive wheel is provided with steel plate, the guiding that steel strand wires pass through directive wheel, prestretching casting pig is set to be suspended on dam body upstream face vertically, and steel strand wires adjustment prestretching casting pig is wound in the position of dam body upstream face by rotating mechanism.The utility model avoids severe cold area, and whenever fluctuation of water table, the destruction that ice body sinks to dam heating insulation layer generation in turn results in dam body and crack occurs, and seepage occurs, and jeopardizes the situation of engineering safety.The utility model has simple to operate, and expense is low, and safety is guaranteed, and construction speed is fast, and the later stage changes the advantages of safeguarding simple.
Description
Technical field
The utility model is related to a kind of safeguard structure of hydraulic structure, especially a kind of to be used for severe cold area grinding coagulation
The structure of the anti-icing pull out force destruction of earth dam body heat-insulation layer.
Background technology
Crack in dam body is common problem in RCCD disease, and temperature stress is to cause dam concrete table
The main cause of facial cleft seam, to prevent temperature stress from causing dam concrete crack on dam surface, in severe cold area, is typically rolling
Concrete dam body surface is incubated, and insulation material is generally XPS or polyurethane heat insulation material.But in severe cold area,
Temperature is low, and frost zone thickness is big, and general severe cold area frost zone thickness is more than 1.6 meters, because ice body and dam body original are frozen into whole
Body, when reservoir supplies water or generates electricity, Drawdown of Reservoir Water Level, ice body sinks under Gravitative Loads, is frozen in the ice on dam heating insulation layer
Body produces ice pull out force when sinking, and tear effect is produced to dam heating insulation layer, and then destroys heat-insulation layer, makes RCCD
External dew, contacts cool exterior air.Again because severe cold area RCCD body is when pouring, the covering of upstream and downstream heat-insulation layer with
Pouring basic synchronization is carried out, and dam body internal heat dissipating seldom, causes dam body self-temperature higher.When dam heating insulation layer tear failure,
When dam body surface concrete is in cold gas, internal-external temperature difference greatly, reaches as high as 45 DEG C or so.Due to internal-external temperature difference
In the presence of, the tension allowed in itself more than RCCD body will be produced, concrete produces crack even to pass through because of tension
Wearing property crack, and then cause embankment seepage, made troubles to operational management, or even jeopardize dam safety.
For example it is located in certain engineering of severe cold area, due to ice pull out force destruction dam heating insulation layer, dam body infiltration, and makees in frost heave
Under, embankment seepage is serious, it has to carry out grouting treatment, and cost is larger.Therefore, severe cold area grinding coagulation soil how is prevented
The anti-icing pull out force destruction of dam heating insulation layer turns into urgent problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of severe cold area RCCD body heat-insulation layer and prevents
The structure of ice pull out force destruction, it is easy to construct, is easy to later maintenance, changes, and use cost is relatively low.
In order to solve the above problems, the technical scheme that the utility model is used is：One kind rolls mixed for severe cold area
The structure of the solidifying anti-icing pull out force destruction of earth dam body heat-insulation layer, a horizontal Cantilever Beams, Cantilever Beams position are set in the top of dam body upstream face
The top of reservoir level when winter operation, along Cantilever Beams upper surface mutually embedding plurality of steel plates across a certain distance, pacifies on steel plate
Dress rotating mechanism, the one ends wound of steel strand wires is fixed on rotating mechanism, the other end lifting prestretching casting pig of steel strand wires, in steel
Directive wheel is provided with plate, the guiding that steel strand wires pass through directive wheel makes prestretching casting pig be suspended on dam body upstream face vertically, and lead to
Cross rotating mechanism winding steel strand wires and adjust prestretching casting pig in the position of dam body upstream face.
The rotating mechanism is the manual rotary handle with control steel strands wound length.
The rotating mechanism is electrical hoist.
The beneficial effects of the utility model：Avoid together with current severe cold area dam heating insulation layer freezes with ice body, in water
When position changes, ice body sinks, drawing dam heating insulation layer, so that dam heating insulation layer is destroyed, and then produces dam body
Larger internal-external temperature difference and the tension allowed more than dam body grinding coagulation soil, make dam body produce crack, finally influence safety of dam body
The drawbacks of.It installs simple, and maintenance replacing is not required to destroy dam concrete structure, and later stage operating cost is low.
Brief description of the drawings
Fig. 1 is the flat of the structure that the utility model is used for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer
Face layout drawing.
Fig. 2 is the profile of Fig. 1.
Fig. 3 is the utility model steel strand wires scheme of installation.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As Figure 1-3, it is of the present utility model for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer
Structure, the upstream face of dam body 1 top set a horizontal Cantilever Beams 4, Cantilever Beams 4 be located at winter operation when reservoir level it is upper
Side, along the upper surface of Cantilever Beams 4 mutually embedding plurality of steel plates 7 across a certain distance, installs rotating mechanism 9, steel strand wires 5 on steel plate 7
One ends wound be fixed on rotating mechanism 9, the other end of steel strand wires 5 lifting prestretching casting pig 6 is provided with steel plate 7 and leads
To the guiding that wheel 8, steel strand wires 5 pass through directive wheel 8, prestretching casting pig 6 is set to be suspended on the upstream face of dam body 1 vertically, and by rotation
The winding steel strand wires 5 of mechanism 9 adjust prestretching casting pig 6 in the position of the upstream face of dam body 1.
The rotating mechanism 9 is the manual rotary handle with the control coiling length of steel strand wires 5.
The rotating mechanism 9 is electrical hoist.
The utility model passes through the pulling force effect of steel strand wires and prestretching casting pig, in fluctuation of water table so that ice body is slow
Sink, reaching does not make dam heating insulation layer be subject to the purpose destroyed.
Cantilever Beams 4 are set on dam body 1, this kind of structure type is generally, be not limited to.
The longitudinal pitch of steel strand wires be 10 meters, but not limited to this spacing, can according to the thickness of actual frost zone lengthen or
Shorten spacing.
Steel strand wires complete the control to steel strand wires length using manually or electrically adjustable apparatus (rotating mechanism 9).Rotation
Mechanism 9 is prior art, is no longer described herein.
Specifically, in the upstream of dam body, Cantilever Beams are set, in Cantilever Beams embedded set built-in fitting, built-in fitting is used to connect
Fixed steel strand wires, prestretching casting pig is installed in the lower end of steel strand wires, and prestretching casting pig is preset in reservoir level, and depth is winter storehouse
The middle and lower part of water level icing thickness, works as Drawdown of Reservoir Water Level, when ice sheet produces ice pull out force, ice pull out force is resisted by steel strand wires, reaches
The purpose of protection dam heating insulation layer.
Do not frozen preceding water level according to reservoir, in advance placement steel strand wires and prestretching casting pig, prestretching casting pig places depth and is
Ice sheet middle and lower part.Prestretching casting pig is embedded in ice body, and in severe cold area, frost zone thickness is larger, with SEA LEVEL VARIATION ice body
Destruction is formed to dam heating insulation layer, steel strand wires drawing ice body plays a part of protection dam heating insulation layer and destroyed.In steel
The top of twisted wire 5 is installed adjustable rotating mechanism 9 and plays a part of to adjust the length of steel strand wires 5, and ice body 3 is dashed forward when preventing SEA LEVEL VARIATION
So the heat-insulation layer 2 of drawing dam body 1, controls the slow descending effect of ice body.
Prestretching casting pig 6 is installed below steel strand wires 5, prestretching casting pig 6 is embedded in ice body, play fixed steel strand wires
The effect of 5 positions, and can increase lifting surface area, prevents ice body from falling suddenly the damage that is caused to dam body 1 so as to reach.In dam body
Upstream set Cantilever Beams 4, can be more convenient the setting of steel strand wires 5, preferably with ice body useful effect, design also dependent on specific
Situation selects other forms to complete the placement of steel strand wires 5.
Embodiment described above is merely to illustrate technological thought of the present utility model and feature, its object is to make ability
Technical staff in domain it will be appreciated that content of the present utility model and implement according to this, it is impossible to only limits this practicality with the present embodiment
New the scope of the claims, i.e., equal change or modification that the spirit disclosed in all the utility model is made still fall new in this practicality
In the scope of the claims of type.
Claims (3)
1. a kind of structure for the destruction of severe cold area RCCD body heat-insulation layer anti-icing pull out force, it is characterised in that on dam
The one horizontal Cantilever Beams (4) of top setting of body (1) upstream face, the top of reservoir level when Cantilever Beams (4) are positioned at winter operation, along
Cantilever Beams (4) upper surface mutually embedding plurality of steel plates (7) across a certain distance, installs rotating mechanism (9), steel strand wires on steel plate (7)
(5) one ends wound is fixed on rotating mechanism (9), and the other end of steel strand wires (5) lifts prestretching casting pig (6), in steel plate (7)
On be provided with directive wheel (8), the guiding that steel strand wires (5) pass through directive wheel (8) makes prestretching casting pig (6) be suspended on dam body vertically
(1) upstream face, and steel strand wires (5) adjustment prestretching casting pig (6) are wound in the position of dam body (1) upstream face by rotating mechanism (9)
Put.
2. the structure for the destruction of severe cold area RCCD body heat-insulation layer anti-icing pull out force according to claim 1,
Characterized in that, the rotating mechanism (9) is the manual rotary handle with control steel strand wires (5) coiling length.
3. the structure for the destruction of severe cold area RCCD body heat-insulation layer anti-icing pull out force according to claim 1,
Characterized in that, the rotating mechanism (9) is electrical hoist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621299869.1U CN206220054U (en) | 2016-11-30 | 2016-11-30 | A kind of structure for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621299869.1U CN206220054U (en) | 2016-11-30 | 2016-11-30 | A kind of structure for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206220054U true CN206220054U (en) | 2017-06-06 |
Family
ID=58787424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621299869.1U Withdrawn - After Issue CN206220054U (en) | 2016-11-30 | 2016-11-30 | A kind of structure for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206220054U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436643A (en) * | 2016-11-30 | 2017-02-22 | 中水北方勘测设计研究有限责任公司 | Structure for preventing roller compacted concretedam bodyinsulating layerfrom being destroyed byice pullout in severe cold region |
| CN108130890A (en) * | 2017-12-27 | 2018-06-08 | 天津森聚柯密封涂层材料有限公司 | A kind of dam waterproof and thermal insulation structure and manufacturing method |
| CN113701988A (en) * | 2021-07-23 | 2021-11-26 | 水利部南京水利水文自动化研究所 | Ice-bank/dam interaction force complete monitoring device and method |
-
2016
- 2016-11-30 CN CN201621299869.1U patent/CN206220054U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436643A (en) * | 2016-11-30 | 2017-02-22 | 中水北方勘测设计研究有限责任公司 | Structure for preventing roller compacted concretedam bodyinsulating layerfrom being destroyed byice pullout in severe cold region |
| CN108130890A (en) * | 2017-12-27 | 2018-06-08 | 天津森聚柯密封涂层材料有限公司 | A kind of dam waterproof and thermal insulation structure and manufacturing method |
| CN113701988A (en) * | 2021-07-23 | 2021-11-26 | 水利部南京水利水文自动化研究所 | Ice-bank/dam interaction force complete monitoring device and method |
| CN113701988B (en) * | 2021-07-23 | 2023-06-30 | 水利部南京水利水文自动化研究所 | Complete monitoring device and method for ice-bank/dam interaction force |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206220054U (en) | A kind of structure for the anti-icing pull out force destruction of severe cold area RCCD body heat-insulation layer | |
| CN101413251A (en) | 0 type block anti-cracking construction method of high pier large across creeping formwork | |
| CN108405485B (en) | Cable-stayed bridge steel strand inhaul cable deicing and anti-icing system and method | |
| CN106223267B (en) | A kind of installation method of multilayer reaming self-locking prestressed anchor | |
| CN103603312A (en) | Ideal temperature control curve model of concrete dam and intelligent control method utilizing same | |
| CN106639351A (en) | Reinforcing method for winding thermal excitation embedded shape memory alloy wires on concrete column | |
| CN206233241U (en) | The device of concrete dam temperature can forever be regulated and controled | |
| CN203097393U (en) | Power transmission tower with adjustable tower foot plate | |
| CN108797346A (en) | It is a kind of can remote monitoring anti-bridge floor icing structure and its working method | |
| CN206204901U (en) | A kind of accurate heating and anti-freezing anti-seepage channel | |
| CN206298902U (en) | A kind of concrete pile foundation structure with inside and outside ventilation duct | |
| CN202064324U (en) | Anti-freezing gate groove | |
| CN106436643B (en) | The structure destroyed for the anti-icing pull out force of severe cold area RCC dam body insulating layer | |
| CN206873518U (en) | One kind repairs blower foundation cracking pre-buried grouted anchor bar, system | |
| CN206189268U (en) | System for utilize groundwater regulation and control pitch bridge deck pavement temperature | |
| CN103806735B (en) | Based on to the electric pole replacing options in electric power pipe network | |
| CN204356744U (en) | A kind of reservoir anti-icing equipment of extremely frigid zones pumped storage power plant | |
| CN204386622U (en) | A kind of tunnel is far from wall type insulation construction | |
| CN204098059U (en) | For the electric power pylon basis of high-strength bolt | |
| CN208251141U (en) | A kind of cold box foundation structure using expanded-sand concrete prefabricated board | |
| CN208024358U (en) | A kind of seasonal frozen ground pole weak tunnel is anchored self-balancing support system by warm multilayer | |
| CN205445088U (en) | A anti -icing freezing is constructed that is used for cold area profundal zone transmission line iron tower and basis | |
| KR20050119483A (en) | Concrete surface heating method and device of low temperature and winter time | |
| CN209276996U (en) | A kind of anti-bridge floor icing structure that can remotely monitor | |
| CN113944480A (en) | Temperature control anti-cracking method for door wall of shield working well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170606 Effective date of abandoning: 20190219 |