CN114232676B - Method for synchronously and quickly constructing balance weight type retaining wall structure and grouted stone slab - Google Patents

Abstract

The application relates to a method for synchronously and quickly constructing a balance weight type retaining wall structure and a grouted stone slab surface layer, which comprises the following steps: s1, soft foundation treatment, S2 cushion layer pouring, S3 masonry of a downward inclined type mortar-masonry barren rock template, S4 masonry of a mortar-masonry barren rock surface layer and S5 construction of a balance weight type retaining wall. This application is through bowing inclined type grout stone strip template, grout stone strip surface course, the successive layer construction in proper order of weighing type barricade, need not to set up the scaffold, and utilize bowing inclined type grout stone strip template and grout stone strip surface course and replace the template operation, bow inclined type promptly and grout stone strip template and grout the both sides template of weighing type barricade as the weighing type barricade, so that pour weighing type barricade, it installs to save the template, the construction degree of difficulty reduces, and bow inclined type grout stone strip template, grout stone strip surface course and weighing type barricade construction in step, construction cycle has also been shortened greatly.

Description

Method for synchronously and quickly constructing balance weight type retaining wall structure and grouted stone slab

Technical Field

The application relates to the field of retaining wall construction of drainage canals, in particular to a method for synchronously and quickly constructing a balance weight type retaining wall structure and a grouted slabstone surface layer.

Background

The drainage ditch is an important infrastructure of a city, plays a role in flood diversion and drainage, plays a role in treating and removing urban rainwater and sewage, and plays a key role in developing a green city in China.

A slope surface of the conventional drainage ditch mainly adopts a balance weight type retaining wall, and then a grouted strip stone surface layer is arranged on the water surface of the balance weight type retaining wall. The concrete construction is that a steel mould or a wood mould is adopted to construct a balanced weight retaining wall structure in a sectional formwork supporting mode, after certain strength is achieved, the formwork is removed, the construction is continued for the last section until the construction is completed, and after the structure is completed, an operation scaffold is set up to build a grout-laid strip stone surface layer on the water surface.

Aiming at the related technologies, the inventor thinks that the following defects are that the building difficulty of the template is high because the balance weight type retaining wall structure is a large-section independent structure, and the template needs to be disassembled subsequently to build a grouted stone slab surface layer, so that the workload is high, and the construction period is long.

Disclosure of Invention

In order to simplify the construction steps and shorten the construction period, the application provides a method for synchronously and quickly constructing a balance weight type retaining wall structure and a grouted stone slab surface layer.

The application provides a synchronous quick construction method of weighing type retaining wall structure and mortar stone slab surface course adopts following technical scheme:

a method for synchronously and quickly constructing a balance weight type retaining wall structure and a grouted stone slab surface layer comprises the following steps:

s1, soft foundation treatment;

s2, pouring a cushion layer;

s3, laying a depression inclined type mortar-laid barred rock template: firstly, backfilling sand and gravel layer by layer at the rear side position of the balance weight type retaining wall, and then building a stone strip by using the inclined plane of the backfilled sand and gravel as a support to form a depression-inclined mortar-laid stone strip template;

s4, building a grouted bar stone surface layer at the front side position of the constant-weight retaining wall;

s5, construction of the balance weight type retaining wall: pouring rubble concrete in the region between the inclined mortar-masonry barred rock template and the mortar-masonry barred rock surface layer to form a balance-weight retaining wall;

and S6, repeating the steps S1 to S5, and constructing the depression inclined type grouted barred rock template, the grouted barred rock surface layer and the balance weight type retaining wall layer by layer upwards.

Through adopting above-mentioned technical scheme, through bowing inclined type and grout the slabstone template, grout the slabstone surface course, the successive layer construction in proper order of weighing type barricade, need not to set up the scaffold, and utilize bowing inclined type to grout the slabstone template and grout the slabstone surface course and replace the template operation, bow inclined type promptly and grout the slabstone template and grout the both sides template of slabstone surface course as weighing type barricade, so that pour weighing type barricade, it installs to save the template, the construction degree of difficulty reduces, and bow inclined type and grout the slabstone template, it constructs with weighing type barricade synchronization to grout the slabstone surface course, construction cycle has also been shortened greatly.

Optionally, in step S2, an expansion foundation is poured over the cushion layer, and a support steel pipe is embedded in the expansion foundation.

Optionally, a step of vertically erecting steel structure units in a pouring area of the counterweight type retaining wall, wherein two adjacent steel structure units are connected through a connecting piece, and the steel structure unit located at the lowest position is fixedly connected with the upper end of the support steel pipe through the connecting piece is added before the step S5.

By adopting the technical scheme, firstly, the steel structure unit can be used as a framework of the balance weight retaining wall so as to effectively improve the structural strength of the balance weight retaining wall; secondly, the horizontal earth pressure resistance of the balance weight retaining wall can be greatly improved through the connection between the steel structure units and the supporting steel pipes; and thirdly, the steel structure units can be built layer by cooperating with the layer-by-layer construction of the balance weight retaining wall, so that a scaffold is omitted, and the construction difficulty is reduced.

Optionally, the steel structure unit is toper triangular frame body structure, the steel structure unit includes three oblique steel pipes that use steel structure unit geometry central line as central circumference and evenly arrange, passes through connecting rod fixed connection between the adjacent oblique steel pipe.

Through adopting above-mentioned technical scheme, the structure of toper triangular frame body is comparatively stable, not only is convenient for set up, can also effectively resist the concrete dead weight of weighing scale formula barricade to reduce the probability that soft foundation subsides.

Optionally, the connecting piece includes a base, and the bottom surface of the base is welded to the upper end of the inclined steel pipe; the top surface of base is equipped with the semicircle seat that the oblique steel pipe of one-to-one set up, semicircle seat bolted connection has the semicircle cover, the outer peripheral face of the lower extreme of oblique steel pipe is laminated respectively the indent cambered surface of semicircle seat with the indent cambered surface of semicircle cover.

Through adopting above-mentioned technical scheme, through the cooperation that sets up semicircle seat and semicircle cover, the lower extreme of oblique steel pipe lower extreme and semicircle seat of not only being convenient for can also effectively fix the lower extreme of oblique steel pipe.

Optionally, in step S3 and step S4, each layer of the stone slab of the top-inclined grout stone slab and the grout stone slab is built according to a "three-in-one-stone" method, and an end of the stone slab extends into a pouring area of the constant-weight retaining wall.

Through adopting above-mentioned technical scheme, through being the lacing wire with the T-stone, can effectively improve the oblique formula of bowing and grout the bonding strength who slabstone template and grout slabstone surface course respectively with the balance weight formula barricade to effectively reduce the collapse of grout slabstone.

Optionally, the steel structure unit is equipped with the billet, the both ends of billet respectively with the bowden type stone of grout stone batten template with the stone of grout stone batten surface course passes through expansion bolts fixed connection.

Through adopting above-mentioned technical scheme, construct the unit through the billet in order to connect the T-stone and steel for the steel constructs the unit and can carries out the atress to the stone setting barred rock of both sides and support, with the slope of the stone setting barred rock of both sides when reducing and pouring the weighing type barricade, can also improve the bearing capacity that the stone setting barred rock was starched to both sides, makes the overall structure's that stone setting barred rock and weighing type barricade are constituteed comprehensive properties improves greatly to both sides.

Optionally, the billet is the channel-section steel, the cavity department that the steel constructs the unit is worn to locate by the billet level, the steel constructs the unit and is equipped with two spinal branch vaulting poles, the lower extreme of bracing piece with it articulates to construct the unit to construct the steel, keep away from along the upper end of bracing piece the steel constructs the unit and the slope upwards sets up, the upper end of bracing piece with the interior cell wall fixed connection of billet.

Through adopting above-mentioned technical scheme, through the slope butt of bracing piece, can improve the position stability of billet to the T stone of outrigger both sides, and the articulated degree of freedom of bracing piece, make the bracing piece can adapt to fixed billet, convenient and fast, the suitability is high.

Optionally, two steel structure units located at the same height are connected with a steel wire mesh between steel bars, and the steel wire mesh is used for supporting rubble.

By adopting the technical scheme, the steel wire mesh is arranged, and the steel structure unit is used as a stress structure to support the rubble stone, so that the damage of the rubble stone to the poured concrete and the two sides of the grouted barred stone can be reduced when the rubble stone enters the pouring area of the balance weight type retaining wall; meanwhile, the rubble is suspended in the air, so that after pouring, the rubble is positioned in the middle of the poured concrete, the difficulty that the poured concrete enters the bottom of the rubble can be effectively reduced, and the concrete cavity phenomenon is reduced; and rubble and wire net constitute the laminar binding stress structure in balance weight formula barricade middle part, and this structure can resist the concrete dead weight of balance weight formula barricade to reduce the probability that soft base subsides.

Optionally, in step S3 and step S4, the mortar used for building the stone bars is mixed on site by using a forced mixer, and medium and coarse river sand is selected as the mortar material.

By adopting the technical scheme, the mortar viscosity can be effectively ensured.

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

through the sequential layer-by-layer construction of the oblique mortar-masonry slab, the mortar-masonry slab surface layer and the balance-weight retaining wall, a scaffold is not required to be built, and the oblique mortar-masonry slab and the mortar-masonry slab surface layer are utilized to replace the template operation, namely the oblique mortar-masonry slab and the mortar-masonry slab surface layer are used as two side templates of the balance-weight retaining wall, so that the balance-weight retaining wall can be poured conveniently, the template installation is omitted, the construction difficulty is reduced, and the oblique mortar-masonry slab, the mortar-masonry slab surface layer and the balance-weight retaining wall are synchronously constructed, so that the construction period is greatly shortened;

by arranging the steel structure units, the steel structure units not only can be used as a framework of the balance weight retaining wall to effectively improve the structural strength of the balance weight retaining wall, but also can greatly improve the horizontal soil pressure resistance of the balance weight retaining wall through the connection between the steel structure units and the supporting steel pipes;

through setting up the wire net, utilize the steel structure unit as the bearing structure to the rubble, so, when can reducing the rubble and advance in the pouring region of weighing type retaining wall the damage that the rubble caused to the concrete of pouring shaping, both sides grout the slabstone.

Drawings

Fig. 1 is a block flow diagram of embodiment 1.

Fig. 2 is a schematic diagram for showing an extended base wooden template setting state in embodiment 1.

Fig. 3 is a schematic view of a concrete cast state for embodying an extended foundation of example 1.

Fig. 4 is a schematic view of the retaining wall embodying the counter balance of example 1.

Fig. 5 is a schematic diagram of embodiment 1 for embodying the position of the burlite.

Fig. 6 is a schematic view for embodying the state of connection of the steel structural unit with the two-sided grout stones of example 2.

Fig. 7 is a schematic view for embodying the connection between adjacent steel structure units of example 2.

Fig. 8 is a partial enlarged view at a in fig. 7.

FIG. 9 is a partial sectional view showing the connection between the flat plate and the inner wall of the steel bar in example 2.

Fig. 10 is a plan view of the entire structure of embodiment 3.

Description of reference numerals: 1. a cushion layer; 2. a downward inclined type grouted stone batten template; 3. grouting a stone slab surface layer; 4. a steel structure unit; 5. a connecting member; 6. a steel bar; 7. steel wire mesh; 10. supporting the steel pipe; 101. deformed steel bar; 102. a wood template; 103. square wood; 12. expanding the foundation; 13. lower grout stone; 14. backfilling clay; 15. backfilling sand and gravel; 20. a counterweight-type retaining wall; 21. d, stone; 41. an inclined steel pipe; 42. a connecting rod; 43. a support bar; 44. a flat plate; 51. a base; 52. a vertical rod; 53. a semicircular seat; 54. a semicircular sleeve.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment 1 of the application discloses a method for synchronously and quickly constructing a balance weight type retaining wall structure and a grouted stone surface layer.

Referring to fig. 1, the method for synchronously and rapidly constructing the balance weight type retaining wall structure and the grouted stone slab surface comprises the following steps;

s1, soft foundation treatment: the soft foundation treatment can be carried out by adopting drainage consolidation, sand pile compaction, deep stirring, high-pressure jet grouting and other forms.

S2, pouring the cushion layer 1 and the extension foundation 12, and the method comprises the following steps:

s2.1, as shown in figure 2, pouring a 100mm back C15 plain concrete cushion layer 1 on the surface of the soft foundation, then embedding deformed steel bars 101 in the cushion layer 1, and enabling the upper ends of the deformed steel bars 101 to be arranged obliquely upwards.

S2.2, arranging a wooden template 102 on the front side of the counterweight retaining wall 20, as shown in fig. 2, so that the deformed steel bar 101 penetrates through the wooden template 102, the penetrating end of the deformed steel bar 101 is locked on the back edge of the wooden template 102 through a fixture, and the back of the wooden template 102 is supported by the square timber 103, so as to increase the stability of the wooden template 102.

S2.3, as shown in figure 3, clay 14 is backfilled in layers on the rear side of the constant weight retaining wall 20, and then the slope of the backfilled clay 14 is used as a support to build a stone to form a lower grouted stone 13.

S2.4, as shown in fig. 3, using the lower grout stones 13 and the wooden form 102 as form structures to pour the C20 rubble concrete to form the extended base 12.

S3, laying a depression inclined type mortar-laid barred rock template 2: as shown in fig. 4, sand and gravel 15 (relative density > 0.65) are backfilled in layers at the rear side position of the balance weight retaining wall 20, and then the slope of the backfilled sand and gravel 15 is used as a support to build the stone to form a depression-inclined mortar-laid stone slab 2; each layer of barren rock is built according to a 'three-in-one-stone' method, and the end part of the T-stone 21 extends into the pouring area of the balance weight type retaining wall 20.

And the mortar used for building the stone bars is mixed on site by a forced mixer, the mortar material is selected from medium and coarse river sand, the medium and coarse river sand is sieved and mixed by a machine for 3-5 min, and the mortar is used along with mixing and keeps proper consistency.

S4, building a grouted stone surface layer 3: masonry mortar bar stone surface layer 3 is built at the position of the front side of the balance weight retaining wall 20, and the gradient of the mortar bar stone surface layer 3 is according to 1: and 0.3, building, namely building each layer of barren rock according to a 'three-in-one-stone' method as shown in figure 5, wherein the end part of the T-stone 21 extends into the pouring area of the constant-weight retaining wall 20. And the mortar used for building the barren rock is mixed on site by a forced mixer, and the mortar material is selected from medium and coarse river sand.

S5, construction of the balance weight type retaining wall 20: as shown in fig. 4, C20 rubble concrete is poured into the region between the top-inclined masonry slab 2 and the grout stone surface course 3 to form the dead-weight retaining wall 20.

And S6, repeating the steps S1 to S5, and constructing the depression inclined type mortar stone slab template 2, the mortar stone slab 3 and the balance weight type retaining wall 20 upwards layer by layer until the specified height is reached.

The implementation principle of the embodiment 1 is as follows: firstly, through bowing inclined grout and build rectangular slab form 2, grout rectangular slab surface course 3, the successive layer construction in proper order of weighing type barricade 20, need not to set up the scaffold, and utilize bowing inclined grout and build rectangular slab form 2 and grout rectangular slab surface course 3 and replace the template operation, bow inclined grout and build rectangular slab form 2 promptly and grout rectangular slab surface course 3 and regard as the both sides template of weighing type barricade 20, so that pour weighing type barricade 20, the template of omitting weighing type barricade 20 is installed, the construction degree of difficulty reduces.

And the downward inclined type grouted stone slab 2, the grouted stone slab surface layer 3 and the balance weight type retaining wall 20 are synchronously constructed, so that the construction period is greatly shortened.

Example 2, on the basis of example 1, as shown in fig. 6 and 7, in step S2.4, a steel pipe 10 is buried and supported in a casting area of an extended foundation 12, and then C20 rubble concrete is cast to form the extended foundation 12; before step S5, increase the step of setting up steel structure unit 4, steel structure unit 4 is located the pouring region of weighing type barricade 20, and steel structure unit 4 is toper triangular frame body structure, specifically says that steel structure unit 4 includes three oblique steel pipes 41, and three oblique steel pipes 41 use steel structure unit 4 geometric centre line to evenly arrange as the center circumference, and through the connecting rod 42 welded fastening connection of level setting between the adjacent oblique steel pipe 41.

Through connecting piece 5 fixed connection between two upper and lower steel structure units 4, and be located the upper end fixed connection that the steel structure unit 4 of below passes through connecting piece 5 and support steel pipe 10, concrete construction does, pour expansion foundation 12 after, be connected the steel structure unit 4 of below with support steel pipe 10 through connecting piece 5, then set up one deck steel structure unit 4 again through connecting piece 5 on the steel structure unit 4 of below, this steel structure unit 4 is as the skeleton of first layer weighing type barricade 20, every weighing type barricade 20 that will be under construction, then set up one deck steel structure unit 4 earlier, steel structure unit 4 sets up according to the construction progress step by step promptly and forms.

As shown in fig. 8, the connecting member 5 includes a base 51, three vertical rods 52 are fixed on the bottom surface of the base 51, and the vertical rods 52 are used to be inserted downwards into the upper port of the supporting steel pipe 10 or into the upper port of the corresponding inclined steel pipe 41 below, and then connected with the bottom surface of the base 51 and the upper end surface of the supporting steel pipe 10 or the upper end surface of the corresponding inclined steel pipe 41 by welding.

The top surface of base 51 is fixed with the semicircle seat 53 that the oblique steel pipe 41 of one-to-one set up, semicircle seat 53 slope sets up, but the oblique steel pipe 41 of the steel structure unit 4 of top is the vertical below, the bottom butt of oblique steel pipe 41 is in the base 51 upper surface, the inboard surface of the lower extreme of oblique steel pipe 41 is laminated in the indent cambered surface of semicircle seat 53, then the bolt fastening through semicircle seat 53 and semicircle cover 54, make the indent cambered surface of semicircle cover 54 laminate in the lateral surface of the lower extreme of oblique steel pipe 41, thereby fix oblique steel pipe 41 wherein.

As shown in fig. 6 and 9, the steel structure unit 4 is further provided with a steel bar 6 and two support rods 43, the steel bar 6 is a channel steel, the steel bar 6 is horizontally arranged, a notch of the steel bar 6 faces downward, two ends of an upper surface of the steel bar 6 are respectively attached to the bottom surface of the spur stones 21 on one side, and then the steel bar 6 and the spur stones 21 are fixedly connected through expansion bolts; the slope of bracing piece 43 sets up, the lower extreme of bracing piece 43 constructs unit 4 with the steel and articulates and is connected, the upper end of bracing piece 43 upwards sets up along keeping away from steel structure unit 4 and slope, the upper end of bracing piece 43 is located the inslot of billet 6, the upper end of bracing piece 43 articulates there is dull and stereotyped 44, concrete construction mode does, earlier violently pass the hollow department that steel constructs unit 4 with 6 levels of billet, then accomplish fixed connection with the both ends of billet 6 respectively with the T-stone 21 of one side, then swing bracing piece 43, make the dull and stereotyped 44 of the upper end of bracing piece 43 be located the inslot of billet 6, and ensure dull and stereotyped 44 laminating billet 6's tank bottom surface, then through welding with fixed dull and stereotyped 44 and billet 6.

The implementation principle of the embodiment 2 is as follows: firstly, the steel structure unit 4 can be used as a framework of the balance weight type retaining wall 20 so as to effectively improve the structural strength of the balance weight type retaining wall 20; secondly, the steel structure unit 4 can also greatly improve the horizontal earth pressure resistance of the counterweight-type retaining wall 20.

And form between steel structure unit 4 and the T-stone 21 and be connected for steel structure unit 4 can carry out the atress to the stone of thick liquid barren of both sides and support, with the slope of the stone of thick liquid barren of both sides when reducing and pouring balance weight formula barricade 20, can also improve the bearing capacity of the stone of thick liquid barren of both sides, makes the overall performance of the overall structure that stone of thick liquid barren of both sides and balance weight formula barricade 20 constitute improve greatly.

Embodiment 3, on the basis of embodiment 2, as shown in fig. 10, a hook is fixed on the upper surface of each steel bar 6, a steel wire mesh 7 is connected between the steel bars 6 of two steel structure units 4 located at the same height, and two sides of the steel wire mesh 7 are respectively connected with the hook of the steel bar 6 on one side.

When the weight-balanced retaining wall 20 is poured, rubble can be placed on the steel wire mesh 7, and then C20 concrete is poured.

In this way, the steel wire mesh 7 uses the steel structure unit 4 as a stress structure to effectively support rubble, so that damage to poured concrete and two-side grouted barred stones caused by rubble when the rubble enters the pouring area of the constant-weight retaining wall 20 can be reduced.

Simultaneously, the rubble is unsettled for after pouring, the rubble can be located the middle part position of concreting, thereby effectively reduces the bottom that concreting is difficult to get into the rubble, reduces concrete cavity phenomenon promptly.

Finally, the rubble and the steel wire mesh 7 form a layer type connection stress structure in the middle of the balance weight type retaining wall 20, and the structure can resist the self weight of concrete of the balance weight type retaining wall 20, so that the probability of soft foundation settlement is reduced.

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 (6)

1. A method for synchronously and quickly constructing a balance weight type retaining wall structure and a grouted stone slab surface layer is characterized by comprising the following steps of: the method comprises the following steps:

s1, soft foundation treatment;

s2, pouring a cushion layer (1);

s3, laying the depression inclined type mortar-laid barred rock template (2): firstly, backfilling sand and gravel (15) in a layering mode at the rear side position of the balance weight type retaining wall (20), and then building a stone by using an inclined plane of the backfilled sand and gravel (15) as a support to form a depression inclined type mortar-building stone template (2);

s4, building a grouted stone slab surface layer (3) at the front side of the constant-weight retaining wall (20);

s5, construction of the balance weight type retaining wall (20): pouring rubble concrete in an area between the inclined type grouted barren rock formwork (2) and the grouted barren rock surface layer (3) to form a balance weight type retaining wall (20);

s6, repeating the steps S1 to S5, and constructing the depression inclined type grouted barred rock template (2), the grouted barred rock surface layer (3) and the balance weight type retaining wall (20) upwards layer by layer;

in step S2, pouring an expansion foundation (12) above the cushion layer (1), and burying a support steel pipe (10) in the expansion foundation (12);

adding the following steps before the step S5, vertically erecting steel structure units (4) in a pouring area of the balance weight retaining wall (20), connecting two adjacent steel structure units (4) through connecting pieces (5), wherein the steel structure unit (4) positioned at the lowest position is fixedly connected with the upper end of the support steel pipe (10) through the connecting piece (5);

the steel structure unit (4) is of a conical triangular frame structure, the steel structure unit (4) comprises three inclined steel pipes (41) which are uniformly distributed by taking the geometric central line of the steel structure unit (4) as the central circumference, and the adjacent inclined steel pipes (41) are fixedly connected through connecting rods (42);

the connecting piece (5) comprises a base (51), and the bottom surface of the base (51) is connected with the upper end of the inclined steel pipe (41) in a welding manner; the top surface of base (51) is equipped with semicircle seat (53) that oblique steel pipe (41) of one-to-one set up, semicircle seat (53) bolted connection has semicircle cover (54), the outer peripheral face of the lower extreme of oblique steel pipe (41) is laminated respectively the indent cambered surface of semicircle seat (53) with the indent cambered surface of semicircle cover (54).

2. The method for synchronously and quickly constructing the balance weight type retaining wall structure and the grouted stone slab surface layer according to claim 1, is characterized in that: in the step S3 and the step S4, each layer of the top inclined type grouted barred rock formwork (2) and each layer of the grouted barred rock surface layer (3) are built according to a 'three-in-one-stone' method, and the end part of the stone (21) extends into the pouring area of the balance weight type retaining wall (20).

3. The method for synchronously and quickly constructing the balance weight type retaining wall structure and the grouted stone slab surface layer according to claim 2, is characterized in that: the steel structure unit (4) is provided with a steel bar (6), and the two ends of the steel bar (6) are respectively fixedly connected with the T-stones (21) of the pitching inclined type mortar-laid stone slab (2) and the T-stones (21) of the mortar-laid stone slab surface layer (3) through expansion bolts.

4. The method for synchronously and quickly constructing the balance weight type retaining wall structure and the grouted slabstone surface layer according to claim 3, wherein the method comprises the following steps: billet (6) are the channel-section steel, billet (6) level is worn to locate the cavity department that constructs unit (4) of steel, steel constructs unit (4) and is equipped with two spinal branch vaulting poles (43), the lower extreme of bracing piece (43) with steel constructs the articulated connection of unit (4), the upper end of bracing piece (43) is along keeping away from steel constructs unit (4) and slope and upwards sets up, the upper end of bracing piece (43) with the interior cell wall fixed connection of billet (6).

5. The method for synchronously and quickly constructing the balance weight type retaining wall structure and the grouted stone slab surface layer according to claim 3, is characterized in that: two that are located same high position be connected with wire net (7) between steel structure unit (4) billet (6), wire net (7) are used for the bearing rubble.

6. The method for synchronously and quickly constructing the balance weight type retaining wall structure and the grouted slabstone surface layer according to claim 1, is characterized in that: in the step S3 and the step S4, mortar used for building the barren rocks is mixed on site by using a forced mixer, and medium and coarse river sand is selected as the mortar material.

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