CN113897912A - Rock-fill concrete masonry structure and construction method thereof - Google Patents

Abstract

The invention discloses a rock-fill concrete masonry structure and a construction method thereof, relating to the technical field of hydraulic engineering, the concrete-filled dam comprises a plurality of rock-fill concrete units, wherein each rock-fill concrete unit comprises a rock-fill layer arranged on one side of a dam body, a concrete layer wrapping the rock-fill layer and a connecting assembly used for supporting the rock-fill layer and a template when the concrete layer is poured, each connecting assembly comprises a blocking net arranged in the circumferential direction of the rock-fill layer and a plurality of connecting rods of which one ends are connected with the blocking net, the connecting rods are respectively arranged on the side surfaces of the rock-fill layer, which are not contacted with the dam body, the connecting rods are circumferentially arranged along the blocking net at intervals, the other ends of the connecting rods, which are positioned on one side of the rock-fill layer, which are close to the adjacent rock-fill concrete units, are abutted against the side surfaces of the adjacent rock-fill concrete units, all the other ends of the connecting rods are tightly abutted to the template, a plurality of reinforcing piles are arranged in the rockfill layer, and the upper ends of the reinforcing piles protrude out to correspond to the upper side of the rockfill layer. This application has the advantage that improves the roughness of rock-fill concrete masonry structure side.

Description

Rock-fill concrete masonry structure and construction method thereof

Technical Field

The invention relates to the field of hydraulic engineering, in particular to a rock-fill concrete masonry structure and a construction method thereof.

Background

The rockfill concrete is that stones with large particle diameters are stacked, then special self-compacting concrete which does not need any vibration is poured from the surface of a rockfill body, the characteristics of high flowability and high penetrability of the special self-compacting concrete are utilized, the gap of the rockfill is completely filled by means of self weight, and then the special self-compacting concrete is solidified to form complete, compact, low hydration heat and large-volume concrete meeting the strength requirement, and the rockfill concrete can be applied to pouring of the rockfill concrete gravity dam.

The rock-fill concrete gravity dam includes the dam body and sets up the rock-fill concrete masonry body layer in the dam body side, generally when the rock-fill concrete masonry body layer is built by laying bricks or stones to the dam body side, adopts the template to surround the rock-fill of dam body one side accumulational between template and dam body, with the fixed back of template for rock-fill and template offset, then pour the concrete between the past template, treat after the concrete setting shaping, form rock-fill concrete masonry body layer.

But directly offset the rock-fill with the template, the rock-fill shape is irregular, easily leads to the concrete to be difficult to reach the clearance between partial rock-fill and the template, leads to the rock-fill concrete masonry layer surface unevenness after the solidification shaping.

Disclosure of Invention

In order to improve the flatness of the side face of the rock-fill concrete masonry structure, the application provides the rock-fill concrete masonry structure and a construction method thereof.

In a first aspect, the present application provides a rock-fill concrete masonry structure, which adopts the following technical scheme:

a rock-fill concrete masonry structure comprises a plurality of rock-fill concrete units arranged on the side face of a dam body, wherein the rock-fill concrete units are sequentially arranged in the vertical direction and the horizontal direction, each rock-fill concrete unit comprises a rock-fill layer arranged on one side of the dam body, a concrete layer wrapping the rock-fill layer and a connecting assembly used for supporting the rock-fill layer and a template when the concrete layer is poured, each connecting assembly comprises a blocking net arranged in the circumferential direction of the rock-fill layer and a plurality of connecting rods, one ends of the connecting rods are connected with the blocking net, the connecting rods are respectively arranged on the side faces, which are not contacted with the dam body, of the rock-fill layer, the connecting rods are all arranged at intervals in the circumferential direction of the blocking net, the other ends, close to one side of the adjacent rock-fill concrete units, of the rock-fill concrete units abut against the side faces of the adjacent rock-fill concrete units, and the other ends of the connecting rods abut against the template, all be provided with a plurality of reinforced piles in the stone-stacking layer, reinforced pile upper end is all outstanding corresponds the stone-stacking layer upside.

Through adopting above-mentioned technical scheme, when the site operation, at first adopt the template to enclose into between dam body and the adjacent rock-fill concrete unit in the horizontal direction and pour the space, then it separates the net to set up in adjacent dam body one side circumference, it is used for supporting and separates the net to set up the connecting rod between separation net and the template, it forms the rock-fill layer to fill the rock-fill in the separation net, then to the inside concrete of pouring of template, can form concrete layer after waiting the concrete to solidify, with the interval between rock-fill and the template, and fill the concrete between the clearance, compare in directly offsetting the concrete-pour again with template and rock-fill, it is more level and more to keep away from a dam body side to pour the rock-fill concrete unit of completion after the interval.

Optionally, a plurality of connecting pieces are arranged on one side, close to the rockfill layer, of the dam body, the connecting pieces comprise connecting rings arranged on the dam body and connecting ropes bound with the connecting rings, the other ends of the connecting ropes are bound and connected with the upper end of the blocking net, and the connecting ropes are always in a straightening state.

Through adopting above-mentioned technical scheme, connect rope binding connection dam body and block net upper end for block net and rock-fill butt are more firm, effectively reduce the possibility that the edge accumulational rock-fill that is close to the upper end will block the net and fall.

Optionally, the lower end of the blocking net is turned over towards one side close to the rockfill layer, and the upper end of the turned-over section of the blocking net is abutted against the lower side of the edge of the rockfill layer.

Through adopting above-mentioned technical scheme, when piling up the rockfill, the rockfill at edge is piled up and is rolled over a section upper end at the separation net, utilizes the rockfill dead weight to realize the fixed to separation net bottom, can realize effectively shortening construction cycle to the fixed of separation net bottom through piling up the rockfill.

Optionally, a groove is formed in the end face of the upper end of each reinforcing pile, the grooves penetrate through the reinforcing piles along the length direction of the corresponding reinforcing piles, and a plurality of through holes are formed in the side wall of each groove.

Through adopting above-mentioned technical scheme, set up a plurality of through-holes on the reinforced pile, concrete placement finishes the back, at the maintenance in-process, waters toward the recess inside through upper end recess notch, and the water that gets into the recess inside permeates to the concrete in through the through-hole, plays better cooling effect to the internal concrete of rock-fill layer.

Optionally, the two adjacent reinforcing piles are connected in a screwed manner.

Through adopting above-mentioned technical scheme, adopt the mode of spiro union to connect between two adjacent enhancement stakes from top to bottom, compare in welding or cement mortar bonding to connect fixedly, the engineering time shortens, and makes things convenient for the workman to connect the enhancement stake, effectively guarantees the recess intercommunication between the adjacent enhancement stake from top to bottom.

Optionally, the outer side surfaces of the reinforcing piles are provided with reinforcing rings.

Through adopting above-mentioned technical scheme, set up the beaded finish outside the reinforced pile, during the removal reinforced pile to the part is used for connecting to the beaded finish, during two reinforced piles about the spiro union is connected, can drive reinforced pile rotation, the transport and the installation of the reinforced pile of being convenient for through promoting the beaded finish.

Optionally, a cement mortar layer is arranged inside the groove, penetrates out of the through hole and permeates into the concrete layer.

Through adopting above-mentioned technical scheme, treat that single rock-fill concrete unit construction finishes, toward the inside pouring cement mortar of reinforced pile, cement mortar has the mobility, flows to concrete layer inside from through-hole department, treats that cement mortar forms the cement mortar layer after solidifying, cement mortar layer reinforcing reinforced pile inner structure intensity, and strengthens joint strength between reinforced pile and the concrete layer, and then strengthens the overall structure intensity of rock-fill concrete unit.

In a second aspect, the present application provides a construction method for a rock-fill concrete masonry structure, which adopts the following technical scheme:

a construction method of a rock-fill concrete masonry structure comprises the following construction steps:

the method comprises the following steps: fixing a template on one side of the dam body, wherein the template encloses a pouring space on one side of the dam body or between the dam body and the adjacent rock-fill concrete unit;

step two: arranging a blocking net in the pouring space, turning the bottom end of the blocking net to the side far away from the template, and then stacking a rock heap layer in the blocking net;

step three: fixing a connecting rod at the upper end of one side of the separation net far away from the rock pile layer, so that the other end of the connecting rod is tightly abutted against the template;

step four: and pouring concrete into the template, curing the concrete, disassembling the template after the concrete is solidified, repeating the installation steps, and constructing in sequence along the horizontal direction and the vertical direction.

Through adopting above-mentioned technical scheme, when dam body one side sets up rock-fill concrete masonry structure, at first pour the one deck along the horizontal direction, then by supreme construction down, every layer all includes a plurality of rock-fill concrete units that set gradually, when construction single rock-fill concrete unit, at first prop up the mould, then at the inside fixed net that separates of template, make interval between rock-fill and the template, then pile up the rock-fill inside the net of separation and form the rock-fill layer, then carry out concrete placement, the clearance between rock-fill layer and the template is filled to the concrete after pouring, and then make the concrete layer of pouring the completion keep away from a dam body side and level more.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the method comprises the following steps that a blocking net is arranged on one side of a dam body, rockfill is stacked between the blocking net and the dam body to form a rockfill layer, a connecting rod is arranged on one side, away from the rockfill layer, of the blocking net, the other end of the connecting rod abuts against a template, the rockfill layer is wrapped by the concrete layer, gaps between the blocking net and the template are filled, then the separation of the rockfill and the template is achieved, and further one side, away from the dam body, of the poured concrete layer is smoother;

2. the lower end of the blocking net is turned over towards one side far away from the template, a section of rockfill is stacked on the upper side of the turning over, the upper end of the blocking net is bound with a connecting rope, the connecting rope is bound and fixed with a connecting ring, the connecting rope is always in a straightened state, the stability of the upper end and the lower end of the blocking net is enhanced while the blocking net is fixed, and the possibility that the blocking net is toppled over due to extrusion of the rockfill is further reduced;

3. when the maintenance concrete, the recess can be used as concrete cooling passageway, treats the concrete setting back, and pouring cement mortar forms cement mortar layer in the recess, can effectively strengthen the internal stability of stone heap, and strengthens joint strength between reinforced pile and the stone heap layer, improves the structural stability of whole stone heap concrete unit.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention in construction.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 3 is an enlarged schematic view of a single connecting rod in the present application.

Fig. 4 is an enlarged view of the entire structure of a single reinforcing pile in the present application.

Description of reference numerals:

1. a dam body; 3. a concrete layer; 4. a connecting assembly; 41. a barrier net; 42. a connecting rod; 421. an outer rod; 4211. an adjustment groove; 422. an inner rod; 423. fixing the bolt; 5. reinforcing piles; 51. a groove; 52. a through hole; 6. a connecting member; 61. a connecting ring; 62. a connecting rope; 7. a reinforcement ring.

Detailed Description

The invention is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a rock-fill concrete masonry structure, as shown in fig. 1 and 2, including building a plurality of rock-fill concrete units on the side of the dam body 1, a plurality of rock-fill concrete units on each side of the dam body 1 are all arranged in sequence along the vertical direction and the horizontal direction, and at the construction site, construction is carried out layer by layer from top to bottom. The rock-fill concrete unit is including piling up the rock-fill layer (not shown in the figure) in dam body 1 one side, the concrete layer 3 of parcel rock-fill layer and the coupling assembling 4 of parcel in concrete layer 3 inside, and coupling assembling 4 is used for supporting rock-fill layer and template, has the interval between rock-fill layer and the template of keeping away from dam body 1 one side all the time.

When the rockfill concrete unit is poured in the construction site, firstly, rockfill is stacked on one side of the dam body 1 to form a rockfill layer, one side face of the rockfill layer is attached to the dam body 1, then, the connecting assembly 4 is fixed on three side faces of the adjacent dam body 1 on the rockfill layer, one side, far away from the rockfill layer, of the connecting assembly 4 abuts against one side face, close to the rockfill layer, of the adjacent rockfill concrete unit or the template, concrete pouring is conducted, the concrete penetrates to the inner portion of the rockfill layer, gaps between the rockfill layer and the template are filled, the poured concrete is solidified to form a concrete layer 3, and the concrete is filled in the middle of the rockfill layer and the template at intervals, so that the rockfill concrete unit after pouring is effectively made to be far away from one side face of the dam body 1 and be more flat.

As shown in fig. 2 and 3, the connection assembly 4 includes a blocking net 41 and a plurality of connection rods 42, the blocking net 41 surrounds the side surface of the dam body 1 and together with the dam body 1 together form a stacking cavity for stacking the rock-fill layer, the blocking net 41 is a steel bar net formed by a plurality of steel bars in a staggered manner, the lower end of the blocking net 41 is bent at a side close to the rock-fill layer, the lower end of the edge of the rock-fill layer is folded with the lower end of the blocking net 41 to form a section of upper side surface, a plurality of connection members 6 are fixed on the side surface of the dam body 1, the connection members 6 are arranged at intervals along the length direction of the dam body 1, and the connection members 6 are lower than the upper end of the blocking net 41.

Connecting piece 6 is including being fixed in the go-between 61 of dam body 1 side and the connecting rope 62 of being connected with the go-between 61 binding, a plurality of connecting rope 62's the other end is connected with the reinforcing bar binding that separation net 41 three sides are close to upper end department respectively, and connecting rope 62 is in the state of flare-outing all the time, a plurality of connecting rod 42 arrange respectively in separation net 41 three sides, and many connecting rod 42 of every side arrange along this side length direction interval, connecting rod 42 includes outer pole 421 of one end and separation net 41 fixed connection, inner pole 422 and a fixing bolt 423 that one end and template or adjacent rock-fill concrete unit support tightly, outer pole 421 are kept away from on the terminal surface of separation net 41 and have been seted up adjusting groove 4211, inner pole 422 keeps away from template or adjacent rock-fill concrete unit one end sliding connection in adjusting groove 4211, fixing bolt 423 passes outer pole 421, and stretch into adjusting groove 4211 and support tightly with inner pole 422.

Bind through connecting rope 62 and connect and block net 41 and go-between 61, it is fixed to realize blocking net 41 upper end, then will block net 41 lower extreme and turn over the book, adopt the rockfill to pile up and turn over a section upside in separation net 41, and then realize blocking net 41 monolithic stationary, then it is fixed with connecting rod 42 one end and blocking net 41, fixed mode can be conventional means such as welding or spiro union, pole 422 slides in the later pulling, make interior pole 422 keep away from outer pole 421 one end and template and support tightly, then adopt fixing bolt 423 with interior pole 422 rigidity, can further realize fixed to the support of separation net 41, and effectively guaranteed the interval between rockfill layer and the template.

The connecting ring 61 and the connecting rope 62 are lower than the upper end of the barrier net 41, and when concrete is to be poured, the connecting piece 6 is buried in the concrete layer 3 and does not protrude out of the rock-fill concrete unit.

As shown in fig. 2 and 4, six reinforcing piles 5 are arranged at intervals inside the rockfill layer, the upper ends of the reinforcing piles 5 protrude out of the upper end of the unit of the rockfill concrete, the reinforcing piles 5 are arranged along the side surface inclination angle of the dam body 1, grooves 51 are formed in the upper end surface of each reinforcing pile 5 along the length direction of each reinforcing pile 5, the grooves 51 penetrate through the two ends of each reinforcing pile 5, a plurality of through holes 52 are formed in the outer side surface of each reinforcing pile 5 in a circumferential interval mode, and the two adjacent reinforcing piles 5 are in threaded connection.

Set up reinforced pile 5 at rockfill internal interval, reinforced pile 5 plays the supporting role to the rockfill that is close to dam body 1 one side, reduces the possibility that the rockfill emptys, and pours the concrete maintenance in-process at the later stage, can be through toward inside watering of recess 51 for inside water permeates the concrete in the maintenance through-hole 52, effectively plays the cooling effect to the concrete in the maintenance, the maintenance of the concrete of being convenient for.

Every 5 lateral surfaces of reinforced pile are close to all welded fastening of upper end department and have beaded finish 7, and when hoist and mount or removal reinforced pile 5, beaded finish 7 as connect with the structure, with hoist and mount with mechanical connection, the back is accomplished in the transport, at the in-process of spiro union connection, rotates through promoting beaded finish 7, and then drives reinforced pile 5 and rotates, the transport and the installation of the reinforced pile 5 of being convenient for.

In order to enhance the overall structural strength of the reinforced pile 5, cement mortar is poured into the groove 51 to form a cement mortar layer (not shown in the figure), and the cement mortar has fluidity and permeates into the concrete layer 3 through the through hole 52, so that after solidification, the connection strength between the reinforced pile 5 and the concrete layer 3 is enhanced, and the structural strength of the whole rock-filled concrete unit is enhanced.

The implementation principle of this application embodiment a rock-fill concrete masonry structure does:

at dam 1 one side enclosure separation net 41, separation net 41 lower extreme is buckled, and pile up the rock-fill in a section upper end of buckling, will block that net 41 upper end and connecting rope 62 bind and be connected, then adopt the template to surround dam 1 and adjacent rock-fill concrete unit, it is fixed with separation net 41 with outer pole 421 one end, pole 422 in the pulling, make interior pole 422 support tightly with the template, twist fixing bolt 423 this moment, make fixing bolt 423 support tightly interior pole 422 tip at the adjustment tank 4211 inner wall, connecting rod 42 separates rock-fill layer and template, then pour the concrete toward the template inside, accomplish the pouring of single rock-fill concrete unit, then set gradually along the horizontal direction, the horizontal direction is poured and is finished the back and is up piled up.

The embodiment of the application also discloses a construction method of the rock-fill concrete masonry structure, which comprises the following construction steps:

the method comprises the following steps: as shown in fig. 2 and 4, a template is fixed on one side of the dam body 1, the template encloses three sides of the side surface of the dam body 1 or two sides between the dam body 1 and the adjacent rock-fill concrete units into a pouring space, reinforcing piles 5 are arranged in the pouring space, the reinforcing pile 5 in the rock-fill concrete unit on the bottommost layer is fixed with the ground, and the rest reinforcing piles 5 are in threaded connection with one reinforcing pile 5 at the lower end;

step two: placing a blocking net 41 in the pouring space, enabling the blocking net 41 to surround three sides of the side face of the dam body 1 into a circle, turning the bottom end of the blocking net 41 to the side far away from the template, then stacking rock heaps in the blocking net 41, enabling the rock heaps to be stacked between the blocking net 41 and the dam body 1, enabling the rock heaps at the edge of the rock heaps layer to be stacked on the upper side of a section of the turned blocking net 41, binding and fixing one end of a connecting rope 62 and a connecting ring 61, and binding and connecting the other end of the connecting rope 62 and the blocking part to the position close to the upper end, so that the connecting rope 62 is kept in a straight and tight state;

step three: as shown in fig. 2 and 3, the upper end of the blocking net 41 away from the rock layer is welded to be connected with an outer rod 421 in a threaded manner, and then the inner rod 422 is pulled, so that one end of the inner rod 422 away from the outer rod 421 abuts against the template, and then the inner rod 422 abuts against by using a fixing bolt 423;

step four: toward the inside concreting of template, at the concrete maintenance in-process, water toward recess 51 in, treat that the concrete solidifies, dismantle the template, toward the inside cement mortar formation cement mortar layer of pouring of recess 51, then repeat above-mentioned installation procedure, build by laying bricks or stones the rock-fill concrete unit along level and vertical direction in proper order, the 5 upper ends of the reinforced pile in the superiors' rock-fill concrete unit are pour inside concrete layer 3.

When the construction rock-fill concrete masonry structure, adopt connecting rod 42 to support and separate net 41 and template, when connecting rod 42 supported and separated net 41, still with rock-fill layer and template interval, when concreting, the interval was filled concrete between rock-fill layer and the template, and then made the concrete layer 3 of pouring the completion keep away from 1 side of dam body more level and more smooth.

The implementation principle of the construction method of the rock-fill concrete masonry structure in the embodiment of the application is as follows:

the construction method comprises the steps of firstly placing a blocking net 41 on the side face of a dam body 1, enabling the blocking net 41 and the side face of the dam body 1 to form a rock-fill concrete unit building space, then adopting rock-fill to stack and compact the lower end of the blocking net 41, adopting the tensile force of a connecting rope 62 to fix the upper end of the blocking net 41, then arranging a reinforcing pile 5 between the blocking net 41 and the dam body 1, then fixing a template, connecting a connecting rod 42 used for tightly abutting against the blocking net 41 and the template between the blocking net 41 and the template, then carrying out concrete pouring and maintenance, then adopting cement mortar to fill a groove 51 to form the construction of a single rock-fill concrete unit, and then repeating the steps to complete the construction of the rock-fill concrete masonry structure on the side face of the dam body 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a rock-fill concrete masonry structure which characterized in that: including setting up a plurality of rock-fill concrete units in dam body (1) side, a plurality of rock-fill concrete unit all sets gradually along vertical and horizontal direction, rock-fill concrete unit all includes setting up in the rock-fill layer of dam body (1) one side, wrapping up concrete layer (3) on rock-fill layer and be used for supporting rock-fill layer and template coupling assembling (4) when pouring concrete layer (3), coupling assembling (4) are including setting up at rock-fill layer circumferential separation net (41) and a plurality of connecting rods (42) that one end is connected with separation net (41), a plurality of connecting rod (42) set up respectively in the side that the rock-fill layer does not contact with dam body (1), a plurality of connecting rod (42) all set up along separation net (41) circumference interval, lie in the other end that rock-fill layer is close to connecting rod (42) of adjacent rock-fill concrete unit one side all offsets with adjacent rock-fill concrete unit side, all the other ends of the connecting rods (42) are tightly abutted to the template, a plurality of reinforcing piles (5) are arranged in the rockfill layer, and the upper ends of the reinforcing piles (5) protrude out to correspond to the upper side of the rockfill layer.

2. The masonry concrete masonry unit system according to claim 1 wherein: dam body (1) is close to rock-fill layer one side and is provided with a plurality of connecting pieces (6), connecting piece (6) all are including setting up go-between (61) on dam body (1) and connecting rope (62) of binding with go-between (61), it all binds with separation net (41) upper end to be connected to connect rope (62) other end, it is in the state of flare-outing all the time to connect rope (62).

3. The masonry concrete masonry unit system according to claim 2, wherein: the lower end of the barrier net (41) is turned over towards one side close to the rockfill layer, and the upper end of the turned section of the barrier net (41) is abutted against the lower side of the edge of the rockfill layer.

4. The masonry concrete masonry unit system according to claim 1 wherein: all set up on the terminal surface of strengthening stake (5) upper end fluted (51), strengthening stake (5) are all run through along corresponding strengthening stake (5) length direction in recess (51), a plurality of through-holes (52) have all been seted up to recess (51) lateral wall.

5. The masonry concrete masonry unit system according to claim 4, wherein: the two adjacent upper and lower reinforcing piles (5) are in threaded connection.

6. The masonry concrete masonry unit system according to claim 5, wherein: and the outer side surfaces of the reinforcing piles (5) are provided with reinforcing rings (7).

7. The masonry concrete masonry unit system according to claim 4, wherein: the groove (51) is internally provided with a cement mortar layer, and the cement mortar layer penetrates out of the through hole (52) and permeates into the concrete layer (3).

8. A method of constructing a masonry concrete masonry structure according to any one of claims 1-7 wherein: the method comprises the following steps:

the method comprises the following steps: fixing a template on one side of the dam body (1), wherein the template encloses a pouring space on one side of the dam body (1) or between the dam body (1) and an adjacent rock-fill concrete unit;

step two: arranging a blocking net (41) in the pouring space, folding the bottom end of the blocking net (41) to the side far away from the template, and then stacking a rock heap into the blocking net (41);

step three: fixing a connecting rod (42) at the upper end of one side of the blocking net (41) far away from the rockfill layer, so that the other end of the connecting rod (42) is tightly abutted against the template;

step four: and pouring concrete into the template, curing the concrete, disassembling the template after the concrete is solidified, repeating the installation steps, and constructing in sequence along the horizontal direction and the vertical direction.

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