阅读说明：本技术 一种含有堆石混凝土心墙的碾压混凝土坝及其施工方法 (A kind of RCC dam and its construction method containing rock-fill concrete core-wall ) 是由 杨杰 尚琦智 王文全 钦亚洲 杨安玉 陈敏 项宏亮 于 2019-08-01 设计创作，主要内容包括：本发明的含有堆石混凝土心墙的碾压混凝土堤坝的施工方法,属于堤坝建筑领域。在上、下游模板之间填筑碾压混凝土形成坝底筑件,上、下游模板逐渐向上设立并分次分层填筑碾压混凝土形成碾压混凝土堤坝；填筑碾压混凝土中设有填充模板；填充模板的设立方向正对于上、下游模板；填充模板之间依次分层填充自密性填充物,自密性填充物向上填充逐渐形成堆石混凝土心墙。本发明采用施工方法,其堆石混凝土心墙中石料混凝土仅采用少量胶凝剂,绝热温升较小,其石料可就地采用河床废弃或天然的块石材料,减少对环境的污染,其施工方式采用碾压混凝土坝类似的通仓碾压,施工工艺同样简单,可解决碾压混凝土坝层面渗透问题。(The construction method on the grinding coagulation earth embankment dam containing rock-fill concrete core-wall of the invention, belongs to dyke building field.Placement grinding concrete forms dam bottom and builds part between the template of upstream and downstream, and upstream and downstream template is gradually set up upwards and gradation placement in layers grinding coagulation soil forms grinding coagulation earth embankment dam；Filling template is equipped in placement grinding concrete；The direction of setting up of filling template is right against upstream and downstream template；Successively layering filling fills upwards from close property filler from close property filler and gradually forms rock-fill concrete core-wall between filling template.The present invention uses construction method, building stone concrete is only with a small amount of gelling agent in its rock-fill concrete core-wall, adiabatic temperature rise is smaller, its building stones can use on the spot riverbed discarded or natural block stone material, reduce the pollution to environment, its form of construction work is rolled using the similar logical storehouse of RCC dam, and construction technology is equally simple, can solve RCC dam level infiltration problem.)

1. a kind of RCC dam containing rock-fill concrete core-wall, it is characterised in that: the dam body of the RCC dam Interior to be equipped with rock-fill concrete core-wall, the height of the rock-fill concrete core-wall is generally greater than the check flood level before dam, the dam heart Wall above section is filled using grinding coagulation soil.

2. the RCC dam according to claim 1 containing rock-fill concrete core-wall, it is characterised in that: the heap Stone concrete core-wall is by block stone and fills self-compacting concrete placement in layers in it, and level and Roller Compacted Concrete Dam layer surfaces are wrong It opens, so that rock-fill concrete core-wall, which can permeate Roller Compacted Concrete Dam layer surfaces, plays the role of antiseepage well.

3. according to claim 1 to the construction party of the RCC dam containing rock-fill concrete core-wall described in 2 any one Method, it is characterised in that: construction procedure is as follows:

Step 1: building upstream template and downstream template constructing at dykes and dams, exist in advance before placement grinding concrete for the first time Filling template, and first stone filling are set up between upstream template and downstream template；The stone roller contour with it is filled around its block stone Concrete is pressed, after the completion of filling, grinding coagulation soil is subjected to logical storehouse with block stone and is rolled；

Step 2: top refills the block stone of certain altitude at block stone filling, and fills in block stone part after the completion of logical storehouse is rolled Enter self-compacting concrete, so that it is fully populated with block stone gap, form the leakage proof wall of lower layer；

Step 3: the leakage proof wall upper end formed in step 2 continues to fill up block stone；Continue to fill around it later and its Contour grinding coagulation soil, grinding coagulation soil and block stone are carried out leading to storehouse and are rolled again after the completion of filling；

Divide RCC dam body height and its interior rock-fill concrete core-wall gradually Step 4: repeating step 2 and step 3 Layer increases；Until reaching design height；

Step 5: the filling of grinding coagulation soil can be directlyed adopt in check flood level elevation to the dam body between crest elevation, roll And it flattens.

4. the construction method of the RCC dam according to claim 3 containing rock-fill concrete core-wall, feature exist In: the height that block stone is refilled in the step 2 is the 1/2 or 1/3 of bottom piece stone height.

5. the construction method of the RCC dam according to claim 3 containing rock-fill concrete core-wall, feature exist Leakage proof wall is formed after: every layer of self-compacting concrete fills up block stone gap, removes filling out for its leakage proof wall two sides Mold filling plate；And it builds and is forming the top of leakage proof wall and be refilled with block stone.

6. the construction method of the RCC dam according to claim 3 containing rock-fill concrete core-wall, feature exist In: the building stones use block stone material or rockfill materials；The stone grain diameter of the block stone material of selection or enrockment be 200mm extremely 250mm。

Technical field

The present invention provides a kind of RCC dam and its construction method containing rock-fill concrete core-wall

, belong to dyke building field.

Background technique

Since RCC dam has many advantages, such as quick, cost economic of constructing, this dam type obtains in hydraulic engineering To wideling popularize and apply.However since such dam is using large volume grinding coagulation soil placement layer by layer, there are rolling layers (seam) face, but these levels are the weak link of RCC dam and the main thoroughfare that such dam permeates.

RCC dam seepage control measure specifically includes that " golden contracted payment " structural shape, upstream face laying normality coagulation at present Soil, interlayer are laid with abnormal concrete or bituminous concrete and membrane seepage prevention etc..Golden contracted payment structural shape is with normal concrete Grinding coagulation soil is wrapped up, which can make RCC dam anti-seepage effect good, but the construction technology of outer layer normal concrete Different from grinding coagulation soil, dam construction technique is sufficiently complex, it is difficult to play the big storehouse surface concreting without longitudinal joint of general RCC dam Advantage.The thin layer antiseepage of normal concrete is laid in dam body upstream face, but thin-lift concrete crack resistance is poor, easily runs through Property crack, pressure water are readily permeable.Abnormal concrete needs the concrete of high gelling volume, and temperature control is undesirable and cost is excessively high.It adopts When with asphalt concrete seepage prevention, special equipment need to be relied on, mechanization requires height, and the problem of aging of material is also more serious. In addition, if the connection between the film and bank slope, the dam foundation is construction Difficulties using membrane seepage prevention.

Rock-fill concrete technology at present just gradually build a dam or reinforcing engineering in be applied.The technology is to utilize high flowing Property, separating resistance can good, self-compacting concrete that penetration capacity is strong be fully populated with boulder gap by its self weight and formed Mass concrete has cement consumption few, and adiabatic temperature rise is few, and it is excellent that impervious good, monovalent low, construction is simple and speed are fast etc. Point.

How by rock-fill concrete technology be applied to RCC dam, handle its level infiltration problem, but do not increase and apply Work process, reducing cost is current urgent problem to be solved.RCC dam obtained wideling popularize in hydraulic engineering with Using.However since such dam is using large volume grinding coagulation soil placement layer by layer, there are rolling layers (seam) face, but these layers Face is the weak link of RCC dam and the main thoroughfare that such dam permeates.

Summary of the invention

The present invention provides a kind of RCC dam and its construction containing rock-fill concrete core-wall in view of the above deficiencies Method.

The present invention adopts the following technical scheme:

RCC dam of the present invention containing rock-fill concrete core-wall is equipped in the dam body of the RCC dam Rock-fill concrete core-wall, the height of the rock-fill concrete core-wall are generally greater than the check flood level before dam, more than clay core wall of earth dam It is filled using grinding coagulation soil part.

RCC dam of the present invention containing rock-fill concrete core-wall, the rock-fill concrete core-wall is by block Stone and self-compacting concrete placement in layers in it is filled, and level is staggered with Roller Compacted Concrete Dam layer surfaces, so that rock-fill concrete Core-wall, which can permeate Roller Compacted Concrete Dam layer surfaces, plays the role of antiseepage well.

The construction method of RCC dam of the present invention containing rock-fill concrete core-wall, construction procedure are as follows:

Step 1: building upstream template and downstream template constructing at dykes and dams, exist in advance before placement grinding concrete for the first time Filling template, and first stone filling are set up between upstream template and downstream template；The stone roller contour with it is filled around its block stone Concrete is pressed, after the completion of filling, grinding coagulation soil is subjected to logical storehouse with block stone and is rolled；

Step 2: top refills the block stone of certain altitude at block stone filling, and fills in block stone part after the completion of logical storehouse is rolled Enter self-compacting concrete, so that it is fully populated with block stone gap, form the leakage proof wall of lower layer；

Step 3: the leakage proof wall upper end formed in step 2 continues to fill up block stone；Continue to fill around it later and its Contour grinding coagulation soil, grinding coagulation soil and block stone are carried out leading to storehouse and are rolled again after the completion of filling；

Divide RCC dam body height and its interior rock-fill concrete core-wall gradually Step 4: repeating step 2 and step 3 Layer increases；Until reaching design height；

Step 5: the filling of grinding coagulation soil can be directlyed adopt in check flood level elevation to the dam body between crest elevation, roll And it flattens.

The construction method of RCC dam of the present invention containing rock-fill concrete core-wall, in the step 2 again The height of secondary stone filling is the 1/2 or 1/3 of bottom piece stone height.

The construction method of RCC dam of the present invention containing rock-fill concrete core-wall, every layer of self-compaction Concrete forms leakage proof wall after filling up block stone gap, removes the filling template of its leakage proof wall two sides；And it builds in shape At leakage proof wall top and be refilled with block stone.

The construction method of RCC dam of the present invention containing rock-fill concrete core-wall, the building stones use Block stone material or rockfill materials；The block stone material of selection or the stone grain diameter of enrockment are 200mm to 250mm.

Beneficial effect

The RCC dam containing rock-fill concrete core-wall that the present invention uses, building stone concrete in rock-fill concrete core-wall Only with a small amount of gelling agent, adiabatic temperature rise is smaller, and building stones can use on the spot riverbed discarded or natural block stone material, reduction pair The pollution of environment, form of construction work are rolled using the similar logical storehouse of RCC dam, and construction technology is equally simple, can solve to grind Press concrete dam level infiltration problem.

The construction method for the RCC dam containing rock-fill concrete core-wall that the present invention uses, is formed using this method Dam structure intensity it is high, securely and reliably, anti-permeability performance is good.

The construction method for the RCC dam containing rock-fill concrete core-wall that the present invention uses, the rock-fill concrete heart Wall is simple process, easy for construction and high-efficient by self-compacting concrete pour stone self-assembling formation.It is anti-to eliminate other Infiltration measure process cumbersome like that is still rolled using logical storehouse, does not increase additional project amount, labour cost, and cost reduces.

Detailed description of the invention

Fig. 1 is that present invention building stones in construction are built and build structural schematic diagram；

Fig. 2 is the present invention initial grinding coagulation soil filling schematic diagram in construction；

Fig. 3 is that the present invention increases the building stones schematic diagram mended and filled out in construction；

Fig. 4 be the present invention in construction to packing material concreting schematic diagram；

Fig. 5 is the filling of building stones and grinding coagulation soil of the invention in construction and rolls schematic diagram；

Fig. 6 is the structural schematic diagram on the grinding coagulation earth embankment dam of the invention containing rock-fill concrete core-wall.

1 is template in figure；2 be building stones；3 be grinding coagulation soil；4 be automatic close concrete；5 be storehouse surface.

Specific embodiment

To keep purpose and the technical solution of the embodiment of the present invention clearer, below in conjunction with the attached of the embodiment of the present invention Figure, is clearly and completely described the technical solution of the embodiment of the present invention.Obviously, described embodiment is of the invention A part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of being not necessarily to creative work.

As shown in Figures 1 to 5: the present invention contains the construction method on the grinding coagulation earth embankment dam of rock-fill concrete core-wall, is It is built based on template 1, is calculated and designed in the river that it needs to build dam body, which can be distinguished into upstream Template and downstream template；Corresponding dam body shape and structure are set up to by upstream template and downstream template；Grinding coagulation earth embankment dam To be a kind of using rock-fill concrete core-wall as the Compacted Concrete Gravity Dam Section of impervious barrier.Preferably, the block stone of the rock-fill concrete Partial size about 250mm or so, maximum particle diameter also should ensure that 1/3 of the minimum dimension lower than rock-fill concrete part-structure, roll mixed It is the current common gradation of Compacted Concrete Gravity Dam Section engineering that solidifying soil class, which is matched,.Preferably, the same rolling layers block stone of the storehouse surface It fills in centre, grinding coagulation soil is filled in two sides.Preferably, after the logical storehouse for carrying out rolling layers is rolled, block stone top is continued The block stone for increasing by 1/3 ~ 1/2 layer high, then pours into self-compacting concrete in block stone region.

The construction method of RCC dam of the present invention containing rock-fill concrete core-wall, construction procedure are as follows:

Step 1: building upstream template and downstream template constructing at dykes and dams, exist in advance before placement grinding concrete for the first time Filling template, and first stone filling are set up between upstream template and downstream template；The stone roller contour with it is filled around its block stone Concrete is pressed, after the completion of filling, grinding coagulation soil is subjected to logical storehouse with block stone and is rolled；

Step 2: top refills the block stone of certain altitude at block stone filling, is refilled with block stone after the completion of logical storehouse is rolled Height is the 1/2 or 1/3 of bottom piece stone height；And self-compacting concrete is poured into block stone part, so that it is fully populated with block stone empty Gap forms the leakage proof wall of lower layer；

Step 3: the leakage proof wall upper end formed in step 2 continues to fill up block stone；Continue to fill around it later and its Contour grinding coagulation soil, grinding coagulation soil and block stone are carried out leading to storehouse and are rolled again after the completion of filling；Every layer of self-compacting concrete Leakage proof wall is formed after filling up block stone gap, removes the filling template of its leakage proof wall two sides；And it builds and is forming antiseepage The top of wall is simultaneously refilled with block stone；

Divide RCC dam body height and its interior rock-fill concrete core-wall gradually Step 4: repeating step 2 and step 3 Layer increases；Until reaching design height；

Step 5: the filling of grinding coagulation soil can be directlyed adopt in check flood level elevation to the dam body between crest elevation, roll And it flattens.

Through the above steps, feature main in the construction of its rock-fill concrete core-wall in construction method of the invention is Filling template after Tong Cang is rolled increases by 1/2 highly again on the building stones of filling or 1/3 is high from close property anti-seepage processing method The building stones of degree, such arrangement stability built plus guarantee lower section building stones, then pour having filled up between building stones by concrete Gap also improve from close effect；The most key is that rock-fill concrete core-wall is layering with dam body in the construction process It fills layering together to carry out by several times, the pouring and both increase the barrier properties of rock-fill concrete core-wall each time under stringent ssupervisor Energy and stability.

The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art, It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims Subject to.