CN117513094A - Road base construction method based on building solid waste utilization - Google Patents

Abstract

The invention relates to the technical field of road base, and discloses a road base construction method based on building solid waste utilization, which comprises the following construction steps: 1) Confirming a construction site, and rolling the construction site to form a flat base layer; 2) Paving and fixing geogrids on the flat base layer, sequentially paving a plurality of prefabricated foundation blocks on the geogrids to form a grid road, and reserving edge sealing areas on two sides of the grid road; the base block is prepared by taking building broken stone, cement, sand and fly ash as base materials; 3) Filling concrete in the edge sealing area to form edge sealing concrete; 4) Preparing joint filling mortar; in the grid road, gaps are formed between adjacent foundation blocks, the gaps are filled with the gap filling mortar, and the pavement road is formed after the gap filling mortar is solidified. Through fixedly laying the civil grid on leveling basic unit, arrange a plurality of prefabricated basic blocks in order again and install, can effectively shorten construction cycle, guarantee that the structure is strong.

Description

Road base construction method based on building solid waste utilization

Technical Field

The invention relates to the technical field of road base, in particular to a road base construction method based on building solid waste utilization.

Background

Road pavement structures generally consist of a surface layer, a base layer, a sub-base layer, and a cushion layer. The cement stabilized macadam has certain superiority in the aspects of strength, integrity, durability and the like, and is the most commonly used structural composition of the prior road base. The cement stabilized macadam is a pavement base structure formed by taking graded macadam as aggregate, taking a certain amount of cement as a gelatinizing agent, filling gaps of the aggregate with enough mortar volume, and paving and compacting according to an embedding and squeezing principle. The cement consumption is generally 4.5% -6% of the mixture, and the strength can only reach 4.0MPa.

In the prior art, for cement stabilized macadam, the maintenance time is longer, and the only method for improving the strength is to increase the cement consumption, but after the cement consumption is increased, irregular shrinkage cracks are inevitably generated in the hardening process, the construction time is long, and the overall strength is poor.

Disclosure of Invention

The invention aims to provide a road base construction method based on building solid waste utilization, and aims to solve the problems that in the prior art, the construction period of the road base is long and the overall strength is difficult to control.

The invention discloses a road base construction method based on building solid waste utilization, which comprises the following construction steps:

1) Confirming a construction site, and rolling the construction site to form a flat base layer;

2) Paving and fixing geogrids on the flat base layer, sequentially paving a plurality of prefabricated foundation blocks on the geogrids to form a grid road, and reserving edge sealing areas on two sides of the grid road;

the base block is prepared by taking building broken stone, cement, sand and fly ash as base materials;

3) Filling concrete in the edge sealing area to form edge sealing concrete;

4) Preparing joint filling mortar; in the grid road, gaps are formed between adjacent base blocks, gap filling mortar is filled in the gaps, and when the gap filling mortar is solidified, a paved road is formed.

Optionally, the base block is prepared from a prefabricated factory;

building broken stone meeting the specification is selected through screening and mixed with cement, sand and fly ash to form a mixture, the mixture is poured and molded in a mold to form the base block, and demolding is carried out; and transporting the plurality of foundation blocks to a construction site.

Optionally, the periphery of the base block is provided with inclined side surfaces, and the inclined side surfaces are arranged in an outward inclined extending way along the direction from top to bottom; the two inclined side surfaces which are adjacently arranged are obliquely arranged in the same direction.

Optionally, the inclined side surfaces are provided with a plurality of concave to form slurry filling strip grooves, the slurry filling strip grooves are horizontally arranged, and the slurry filling strip grooves on two adjacent inclined side surfaces are aligned; in the step 4), in the process of injecting the caulking mortar into the gap, the caulking mortar fills the plurality of the grout strip grooves.

Optionally, the mold is provided with a mold cavity, and the side wall of the mold cavity is provided with a convex rib protruding towards the mold cavity; and in the process of pouring and forming the base block in the die cavity, under the action of the raised ribs, the slurry filling strip groove is formed on the inclined side surface.

Optionally, the top of the die cavity is provided with an upward arranged top opening, the mixture is injected into the die cavity through the top opening, and in the process of pouring and forming the mixture, before the mixture is not completely solidified, the mixture is scraped from front to back through the rake teeth to form a plurality of stripe grooves.

Optionally, in the step 3), a standing stone is fixed on the edge sealing concrete.

Optionally, in the step 4), before filling the gap with the caulking mortar, a width value of the gap is measured, and when the width value is within a set range, the gap is filled with the caulking mortar.

Optionally, in the step 2), arranging a concrete cong around the manhole, wherein the concrete cong comprises four triangular blocks in right-angle triangle shape, a large eccentric annular piece and a small eccentric annular piece; the large eccentric circular ring piece is provided with a large eccentric circular notch which is eccentrically arranged, and the small eccentric circular ring piece is provided with a small eccentric circular notch which is eccentrically arranged;

and arranging the four triangular blocks on four sides of the inspection well, arranging the large eccentric annular piece in an enclosing area of the four triangular blocks, and installing the small eccentric annular piece after rotating the large eccentric annular piece to a set position of the inspection well in the large eccentric circular notch so that the inspection well is positioned in the small eccentric annular piece.

Optionally, the triangular block has an arcuate facing wall disposed toward the outer periphery of the large eccentric annular member, the facing wall having an annular space from the outer periphery of the large eccentric annular member; two convex blocks which are arranged at intervals are convexly arranged on the facing wall, extend towards the annular interval and are abutted against the periphery of the large eccentric annular piece;

an elastic belt is arranged on the periphery of the large eccentric circular ring piece, the elastic belt is in a closed ring shape, and the elastic belt penetrates through the plurality of protruding blocks to enable the four triangular pieces to be connected with each other;

in the step 2), four triangular pieces are placed at corresponding positions, the elastic belt is in a natural state, the large eccentric annular piece is placed in an enclosing area of the four triangular pieces, the periphery of the large eccentric annular piece is propped against a plurality of protruding blocks, the four triangular pieces are enabled to move outwards, the elastic belt is stressed to be in a compressed state, and under the action of elastic force, the protruding blocks are propped against the periphery of the large eccentric annular piece.

Compared with the prior art _， According to the road base construction method based on the solid waste utilization of the building, the prefabricated foundation blocks are arranged on the civil grid, edge sealing concrete is formed by edge sealing on two sides of the foundation blocks, and the gap is filled with the gap filling mortar, so that the gap filling mortar flows into the flat base layer and the civil grid through the gap, the gap is filled, the foundation blocks, the gap filling mortar concretes, the geogrid and the edge sealing concrete form a composite base structure, the structure is strong, the foundation blocks are formed by utilizing building broken stone in the building waste as one of raw materials, waste is changed into valuable, the resource utilization rate is improved, meanwhile, the foundation blocks are formed in a prefabricated mode, and the construction period can be effectively shortened.

Drawings

FIG. 1 is a construction diagram of a road base based on the utilization of building solid wastes provided by the present invention;

FIG. 2 is a partial schematic view of a base block provided by the present invention;

FIG. 3 is a schematic front view of an inspection well provided by the present invention;

FIG. 4 is a schematic front view of a triangle provided by the present invention;

fig. 5 is a schematic diagram showing the connection of the triangle and the elastic belt.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The implementation of the present invention will be described in detail below with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

Referring to fig. 1-5, a preferred embodiment of the present invention is provided.

The invention provides a road base construction method based on building solid waste utilization, which comprises the following construction steps:

1) Confirming a construction site, and rolling the construction site to form a flat base layer 10;

2) Paving and fixing geogrid on the flat base layer 10, sequentially paving a plurality of prefabricated foundation blocks 200 on the geogrid 100 to form a grid road, and reserving edge sealing areas on two sides of the grid road;

the base block 200 is prepared from building crushed stone, cement, sand and fly ash as base materials;

3) Filling concrete in the edge sealing area to form edge sealing concrete 300;

4) Preparing joint filling mortar; in the grid road, gaps are formed between adjacent base blocks 200, the gaps are filled with the gap filling mortar, and the gap filling mortar is solidified to form a paving road.

According to the road base construction method based on the utilization of the building solid waste, the prefabricated foundation blocks 200 are installed on the civil grid 100, edge sealing concrete 300 is formed by edge sealing on two sides of the foundation blocks, and the gap filling mortar is filled in the gap and flows into the flat base 10 and the civil grid 100 through the gap, and the gap is filled, so that the foundation blocks 200, the gap filling mortar concretes 400, the geogrid and the edge sealing concrete 300 form a composite base structure, the structure is strong, the foundation blocks 200 are formed by prefabricating building broken stone in the building waste as one of raw materials, waste is changed into valuable, the resource utilization rate is improved, and meanwhile, the foundation blocks 200 are formed in a prefabricated mode, and the construction period can be effectively shortened.

In the preferred embodiment, since the prefabricated foundation block 200 needs to be cut to have a flat edge angle on the outer circumference, a large amount of stone chips are generated, and before the foundation block 200 is laid in step 2), the stone chips are spread on the grid, and after the foundation block 200 is pressed against the stone chips, the stone chips are filled into the gaps to be laid out, so that a stone chip layer is formed, and when mortar is filled in the subsequent process, the mortar firmly bonds the stone chips.

An asphalt concrete cover 600 is laid over the paved road.

The base block 200 is prepared from a prefabricated factory;

building broken stone meeting the specification is selected through screening and mixed with cement, sand and fly ash to form a mixture, the mixture is poured and molded in a mold to form a base block 200, and demolding is carried out; the plurality of base blocks 200 are then transported to a construction site. Like this, shift the health preserving place of road basic unit mixture to the prefabricated place in by the road groove, accelerated the construction progress greatly.

The peripheral sides of the base block 200 are provided with inclined side surfaces which are arranged in an outward inclined extending manner along the direction from top to bottom; the two inclined side surfaces which are adjacently arranged are obliquely arranged in the same direction. Thus, the formed integral structure is more compact and has higher strength.

The inclined side surfaces are provided with a plurality of concave slurry filling strip grooves 201, the slurry filling strip grooves 201 are horizontally arranged, and the slurry filling strip grooves 201 on two adjacent inclined side surfaces are aligned; in step 4), the caulking mortar fills the plurality of the grout strip grooves 201 during the process of injecting the caulking mortar into the gaps. In this way, the connection between adjacent base blocks 200 is greatly enhanced.

Specifically, the mold is provided with a mold cavity, and the side wall of the mold cavity is provided with a convex rib protruding towards the mold cavity; in the process of pouring and forming the base block 200 in the die cavity, the slurry filling strip groove 201 is formed on the inclined side surface under the action of the protruding ribs.

The top of the die cavity is provided with an upward-arranged top opening, the mixture is injected into the die cavity through the top opening, and in the process of pouring and forming the mixture, before the mixture is not completely solidified, the mixture is scraped from front to back through the rake teeth to form a plurality of stripe grooves. In this way, the side provided with the stripe grooves is arranged downwards, so that the connection between the base block 200 and the flat base layer 10 is greatly enhanced, and the overall structure is stronger.

In a preferred embodiment, in step 3), the standing edge stone 500 is fixed on the edge sealing concrete 300.

Specifically, in step 4), the width value of the gap is measured before filling the gap with the caulking mortar, and when the width value is within the set range, the gap is filled with the caulking mortar.

Specifically, in step 2), a concrete cong is arranged around the manhole, and the concrete cong includes four triangular blocks having a right-angle triangle shape, a large eccentric annular member 720 and a small eccentric annular member 730; the large eccentric annular member 720 has a large eccentric circular gap arranged eccentrically, and the small eccentric annular member 730 has a small eccentric circular gap arranged eccentrically;

four triangular blocks are arranged on four sides of the inspection well, a large eccentric annular piece 720 is arranged in an enclosing area of the four triangular blocks, and after the large eccentric annular piece 720 is rotated to a set position of the inspection well in a large eccentric circular notch, a small eccentric annular piece 730 is installed, so that the inspection well is positioned in the small eccentric annular piece 730. Thus, since the manhole is generally circular, it is difficult to just fit in the prefabricated base block 200, and thus the filling of the gap between the prefabricated base block 200 and the circular manhole can be rapidly achieved by using four triangular blocks having a right-angle triangle shape, one large eccentric annular member 720 and one small eccentric annular member 730, and the center hole position is adjusted by rotating the large eccentric annular member 720 and the small eccentric annular member 730, so that the installation is convenient.

In this embodiment, the triangular block has an arcuate facing wall disposed toward the outer periphery of the large eccentric annular member 720 with an annular space from the outer periphery of the large eccentric annular member 720; two convex blocks 711 arranged at intervals are convexly arranged on the facing wall, and the convex blocks 711 extend towards the annular interval and are abutted against the periphery of the large eccentric annular piece 720;

an elastic band 740 is arranged on the periphery of the large eccentric annular member 720, the elastic band 740 is in a closed ring shape, and the elastic band 740 passes through the plurality of protruding blocks 711 to connect the four triangular members 710 with each other;

in step 2), the four triangular members 710 are placed at corresponding positions, the elastic belt 740 is in a natural state, the large eccentric annular member 720 is placed in the surrounding area of the four triangular members 710, the outer periphery of the large eccentric annular member 720 abuts against the plurality of protruding blocks 711, the four triangular members 710 move outwards, the elastic belt 740 is stressed to be in a compressed state, and the plurality of protruding blocks 711 abut against the outer periphery of the large eccentric annular member 720 under the action of elastic force. Thus, the whole structure is more compact and is connected into a whole, and the whole structure is stronger.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. The road base construction method based on the utilization of building solid wastes is characterized by comprising the following construction steps:

1) Confirming a construction site, and rolling the construction site to form a flat base layer;

2) Paving and fixing geogrids on the flat base layer, sequentially paving a plurality of prefabricated foundation blocks on the geogrids to form a grid road, and reserving edge sealing areas on two sides of the grid road;

the base block is prepared by taking building broken stone, cement, sand and fly ash as base materials;

3) Filling concrete in the edge sealing area to form edge sealing concrete;

4) Preparing joint filling mortar; in the grid road, gaps are formed between adjacent base blocks, gap filling mortar is filled in the gaps, and when the gap filling mortar is solidified, a paved road is formed.

2. The method for constructing a road base based on the utilization of solid wastes from construction according to claim 1, wherein the foundation block is prepared from a prefabricated plant;

building broken stone meeting the specification is selected through screening and mixed with cement, sand and fly ash to form a mixture, the mixture is poured and molded in a mold to form the base block, and demolding is carried out; and transporting the plurality of foundation blocks to a construction site.

3. The construction method of a road base based on the utilization of building solid wastes according to claim 2, wherein the peripheral sides of the foundation blocks have inclined side surfaces which are arranged to extend obliquely outward in a top-down direction; the two inclined side surfaces which are adjacently arranged are obliquely arranged in the same direction.

4. The construction method of the road base based on the solid waste utilization of the building according to claim 3, wherein a plurality of concave parts are arranged on the inclined side surfaces to form slurry filling strip grooves, the slurry filling strip grooves are horizontally arranged, and the slurry filling strip grooves on two adjacent inclined side surfaces are aligned; in the step 4), in the process of injecting the caulking mortar into the gap, the caulking mortar fills the plurality of the grout strip grooves.

5. The construction method of road base based on solid waste utilization of building according to claim 4, wherein the mold is provided with a mold cavity, and the side wall of the mold cavity is provided with a protruding rib protruding towards the mold cavity; and in the process of pouring and forming the base block in the die cavity, under the action of the raised ribs, the slurry filling strip groove is formed on the inclined side surface.

6. The construction method for a road base based on solid waste utilization of construction according to claim 5, wherein the top of the mold cavity has a top opening arranged upward, the mixture is injected into the mold cavity through the top opening, and a plurality of streak grooves are formed by scraping the rake teeth from front to back on the top of the mixture before the mixture is not completely solidified during casting molding of the mixture.

7. The construction method of a road base based on the utilization of building solid wastes according to claim 1, wherein in the step 3), a standing stone is fixed on the edge sealing concrete.

8. The method for constructing a road base based on solid waste utilization of construction according to claim 1, wherein in the step 4), a width value of the gap is measured before filling the gap with the caulking mortar, and when the width value is within a set range, the gap is filled with the caulking mortar.

9. The construction method of road base based on solid waste utilization of construction according to any one of claims 1 to 8, wherein in the step 2), concrete fragments are arranged around the manhole, the concrete fragments comprising four triangular blocks having a right-angled triangle shape, one large eccentric circular ring member and one small eccentric circular ring member; the large eccentric circular ring piece is provided with a large eccentric circular notch which is eccentrically arranged, and the small eccentric circular ring piece is provided with a small eccentric circular notch which is eccentrically arranged;

and arranging the four triangular blocks on four sides of the inspection well, arranging the large eccentric annular piece in an enclosing area of the four triangular blocks, and installing the small eccentric annular piece after rotating the large eccentric annular piece to a set position of the inspection well in the large eccentric circular notch so that the inspection well is positioned in the small eccentric annular piece.

10. The construction method for a road base based on the utilization of building solid wastes according to any one of claims 1 to 8, wherein the triangular block has an arc-shaped facing wall disposed toward the outer periphery of the large eccentric annular member with an annular space from the outer periphery of the large eccentric annular member; two convex blocks which are arranged at intervals are convexly arranged on the facing wall, extend towards the annular interval and are abutted against the periphery of the large eccentric annular piece;

an elastic belt is arranged on the periphery of the large eccentric circular ring piece, the elastic belt is in a closed ring shape, and the elastic belt penetrates through the plurality of protruding blocks to enable the four triangular pieces to be connected with each other;

in the step 2), four triangular pieces are placed at corresponding positions, the elastic belt is in a natural state, the large eccentric annular piece is placed in an enclosing area of the four triangular pieces, the periphery of the large eccentric annular piece is propped against a plurality of protruding blocks, the four triangular pieces are enabled to move outwards, the elastic belt is stressed to be in a compressed state, and under the action of elastic force, the protruding blocks are propped against the periphery of the large eccentric annular piece.