CN107938456B - Construction method for filling river channel - Google Patents
Construction method for filling river channel Download PDFInfo
- Publication number
- CN107938456B CN107938456B CN201711230706.7A CN201711230706A CN107938456B CN 107938456 B CN107938456 B CN 107938456B CN 201711230706 A CN201711230706 A CN 201711230706A CN 107938456 B CN107938456 B CN 107938456B
- Authority
- CN
- China
- Prior art keywords
- layer
- cement
- paving
- stabilized macadam
- filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
Abstract
The invention discloses a construction method for filling a river channel, which solves the problem that the foundation of the river channel is a soft soil foundation. The technical scheme is characterized in that the construction method for filling the riverway comprises the following steps: s100, cleaning the bottom surface of the pond to an undisturbed soil layer, and cleaning sundries; s200, paving a mountain skin mud layer to a river channel roadbed surface; s300, digging a foundation pit; s400, mounting a cement mixing pile; s500, laying a first air bubble mixed light soil layer; s600, paving a graded crushed stone layer; s700, paving a second bubble mixed light soil layer; s800, laying a stable layer; s900, paving an asphalt concrete layer; by adopting the construction method, the problem that the foundation of the river-filling road is a soft soil foundation can be solved, and the service life of the river-filling road is effectively prolonged.
Description
Technical Field
The invention relates to a municipal construction method, in particular to a construction method for filling a river channel.
Background
With the development of cities, the coverage rate of urban roads to the cities is gradually improved, and the road construction is an indispensable part for the urban construction. However, when an urban road needs to cross a river, two solutions generally exist: if the width of the pond is larger, a bridge is built on the pond and is used for communicating roads on two sides of the pond; if the width of the pond is smaller, filling the pond and paving a road. Aiming at the second solving mode, the water content of the foundation at the bottom of the pond is higher, so that the soil is softer, and the foundation at the bottom of the pond is a soft soil foundation. If the river channel road is filled for construction according to the conventional construction method, the hidden troubles of road fracture, road collapse and road damage exist in the river channel road.
At present, several methods commonly used for treating soft soil foundation roads are as follows: 1. excavating and filling; 2. a cushion method; 3. a stone throwing and sludge squeezing method; 4. drainage consolidation, and the like. Wherein, the excavation and replacement method and the stone throwing and silt squeezing method are generally applied to soft soil foundations with not very large thickness; the cushion method is generally applied to shallow treatment of soft soil foundations, but cannot be applied to soft soil foundations with the compression modulus of a bearing stratum less than 2.5 MPa; the period of the drainage consolidation method is generally too long, and the construction method is complicated.
However, the above methods are not suitable for filling river channels, the thickness of the soft soil foundation of the river channel is thick, and the shrinkage modulus of the bearing layer of the soft soil foundation is small, so that a construction method suitable for filling river channels needs to be developed.
Disclosure of Invention
The invention aims to provide a river channel filling construction method, which can overcome the problem that the foundation of a river channel is a soft foundation and effectively prolong the service life of the river channel.
The technical purpose of the invention is realized by the following technical scheme:
a construction method for filling a river channel comprises the following steps: s100, draining accumulated water in the pond, removing floating mud at the bottom of the pond to obtain undisturbed soil, turning over the undisturbed soil, and removing impurities in the undisturbed soil; s200, paving a mountain skin mud layer on the upper end of undisturbed soil until a riverway roadbed surface is filled, and flattening and compacting the mountain skin mud layer; s300, digging a foundation pit: excavating a foundation pit by using an excavator; s400, mounting a cement mixing pile: drilling a hole downwards on the mountain skin mud layer by using a drilling machine, wherein the drilling depth is not less than 15m, driving cement slurry into the drilled hole by using a high-pressure slurry spraying pump to form a cement mixing pile, moving the drilling machine to the installation position of the next cement mixing pile, and performing construction of the next cement mixing pile; s500, paving a first air bubble mixed light soil layer: s600, laying a graded broken stone layer, wherein the thickness of the graded broken stone layer is not less than 30 cm; s700, laying a second bubble mixed light soil layer, wherein the thickness of the second bubble mixed light soil layer is not less than 150 cm; s800, laying a stabilizing layer, wherein the stabilizing layer is a cement stabilized macadam base layer, and the thickness of the stabilizing layer is not less than 30 cm; and S900, paving an asphalt concrete layer.
By adopting the technical scheme, S100 can clean up the sundries at the bottom of the pond, so that the interference of the sundries to the subsequent construction can be avoided; s200, the pond can be compacted after being filled, so that a reasonable working environment is provided for filling a river channel, and subsequent construction is facilitated; s300, a normal construction step; s400, the cement mixing piles are arranged to further stabilize the foundation of the river filling road, so that the foundation can be reinforced and stabilized; the first air bubble mixed light soil layer in the S500 can level other base layers above and can further stably fill the foundation of the river road; s600, a conventional construction step is adopted, so that the stress of a road filled with a river can be dispersed, and the problem of road damage caused by stress concentration is prevented; the second bubble mixed light soil layer in the S700 is arranged, so that enough support can be provided for filling the river channel, and the bubble mixed light soil layer has a good heat insulation effect; s800, the cement stabilized macadam base can further reinforce the foundation and provide enough support for filling the river channel; s900 is a conventional construction step, and the asphalt pavement is flat and waterproof and has long service life. In conclusion, the river filling road construction method provided by the invention has the advantages that the foundation of the river filling road formed by construction is firm, the problems of road collapse and the like are not easy to occur, and the service life of the river filling road is effectively prolonged.
As a further improvement of the present invention, the S400 further includes the following steps: before the cement mixing pile is cooled, a fixing stud is embedded into the upper end of the cement mixing pile, and the fixing stud partially extends out of the cement mixing pile; the following steps are also included between S400 and S500: s410, paving a reinforced steel plate: and reinforcing steel plates are arranged between the cement mixing piles, fixing through holes for mounting the fixing studs are arranged on two sides of each reinforcing steel plate, the reinforcing steel plates are sleeved on the fixing studs, and the reinforcing steel plates are fixed by adopting fixing nuts.
By adopting the technical scheme, the reinforced steel plates can be effectively connected with the cement mixing piles, the foundation strength of the river-filling road is further enhanced, and the probability of collapse and fracture of the river-filling foundation is reduced.
As a further improvement of the present invention, the following steps are further included between S400 and S410: s401, paving a mountain skin mud layer at the upper end of the cement mixing pile, digging a mounting groove for placing a reinforced steel plate above the mountain skin mud layer, and enabling the fixing stud to extend out of the bottom of the mounting groove; the following steps are also included between S410 and S500: and S420, paving a layer of mountain skin mud on the upper ends of the cement mixing pile and the reinforced steel plate, wherein the distance between the upper end face of the mountain skin mud layer and the reinforced steel plate is not less than 30 cm.
By adopting the technical scheme, the installation of the reinforced steel plate can be conveniently realized by excavating the installation groove; one layer of mountain skin mud is laid on the upper ends of the cement mixing pile and the reinforced steel plate, so that the first air bubble mixed light soil layer can be effectively prevented from solidifying the steel plate and the cement mixing pile, and slight deformation can be caused between the cement mixing pile and the reinforced steel plate so as to cope with self expansion caused by heat and contraction caused by cold.
As a further improvement of the present invention, the reinforced steel plate is provided with a plurality of reinforced through holes penetrating through the upper and lower end faces of the reinforced steel plate, and the following steps are further included between S410 and S420: and S411, injecting cement mortar between the mounting groove and the reinforced steel plate through the reinforced through hole, and filling the reinforced through hole.
Through adopting above-mentioned technical scheme, the pouring into of cement mortar can fill the mounting groove and reinforce the clearance between the steel sheet, makes the mounting groove can provide more stable support for strengthening the steel sheet, is favorable to having strengthened the intensity of whole ground.
As a further improvement of the present invention, the following steps are further included between S401 and S410: s402, placing a supporting steel mesh on the bottom surface of the mounting groove, and inserting the two sides of the steel mesh into the mountain leather mud layers on the two sides of the mounting groove.
Through adopting above-mentioned technical scheme, the setting up of supporting the steel mesh can make mounting groove and reinforce and have certain clearance between the steel sheet, makes the cement mortar that can fill certain quality between the two to be favorable to promoting the mounting groove to the support of reinforcing the steel sheet, thereby strengthen the intensity of whole ground.
As a further improvement of the present invention, the S800 mainly includes the following steps: s801, arranging steel templates on two sides of a river-filling road; s810, paving a cement stabilized macadam lower base course, wherein the cement content in the cement stabilized macadam lower base course is 4%; s820, paving a base layer in the cement-stabilized macadam, wherein the cement content of the base layer in the cement-stabilized macadam is 4%; s830, paving an upper base layer of the cement-stabilized macadam, wherein the cement content of the upper base layer of the cement-stabilized macadam is 5%; in the laying process of the lower cement stabilized macadam base layer, the middle cement stabilized macadam base layer and the upper cement stabilized macadam base layer, a paver is adopted for paving, and within 2 hours after paving of each layer, a vibratory roller is adopted for rolling.
Through adopting above-mentioned technical scheme, the stabilizer layer mainly includes in basic unit, the cement stabilized macadam basic unit and the cement stabilized macadam upper base layer under the cement stabilized macadam, the setting up of this kind of structure makes the stabilizer layer more firm, can provide sufficient support for filling out the river course way. And the structure between each layer of the lower base course of the cement stabilized macadam, the middle base course of the cement stabilized macadam and the upper base course of the cement stabilized macadam paved by the paving method is independent, and if one layer is broken, the interference to the adjacent stabilizing layer is small.
As a further improvement of the present invention, the following steps are further included between S600 and S700: s610, paving impermeable geomembranes on the upper end surface of the graded crushed stone layer and the inner walls of the two sides of the foundation pit, wherein the impermeable geomembranes are transversely paved along a riverway filling path and are tightly attached to the upper end surface of the graded crushed stone layer; the following steps are also included between the steps S810 and S820: s811, folding the two side edges of the anti-seepage geomembrane to the upper end surface of the cement stabilized macadam lower base layer, and tightly attaching the two side edges of the anti-seepage geomembrane to the two sides of the upper end surface of the cement stabilized macadam lower base layer by using the drill nails.
Through adopting above-mentioned technical scheme, the prevention of seepage geomembrane can prevent that the water of upper end from permeating to the level and joining in marriage the metalling, avoids the rainwater to cause the influence to bottom basic unit. Meanwhile, the second bubble mixed light soil layer is provided with a large number of through holes and has good water seepage capacity, and the rainwater can flow in the second bubble mixed light soil layer through the obstruction of the anti-seepage geotextile, so that the rainwater can be conveniently discharged from the foundation of the riverway filled with the rainwater.
As a further improvement of the present invention, the specific steps of S700 are as follows: and the second bubble mixed light soil layer is poured in a layered and blocking mode, the single-layer pouring thickness is 0.3-0.8m, a first metal net is installed on the upper end surface of the second bubble mixed light soil layer after the first layer is poured, and a second metal net is installed on the upper end surface of the second bubble mixed light soil layer before the last layer is poured.
Through adopting above-mentioned technical scheme, through the mode of layering piecemeal pouring second bubble mixed light soil layer, can be comparatively simple and convenient carry out the construction to second bubble mixed light soil layer. Meanwhile, the structural strength of the second bubble mixed light soil can be reinforced by the arrangement of the first metal net and the second metal net.
As a further improvement of the present invention, the specific steps of S900 are as follows: s910, before paving an asphalt concrete layer, spraying an asphalt permeable layer on the upper end of the stable layer; s920, paving a slurry seal layer; s920, paving thick coarse-grained common asphalt concrete; s930, paving thick medium-grain modified asphalt concrete; s940, paving a modified asphalt mastic macadam mixed precoat; and paving the slurry seal layer, the thick coarse grain type common asphalt concrete, the thick medium grain type modified asphalt concrete and the modified asphalt mastic broken stone mixed precoat by adopting a paver.
Through adopting above-mentioned technical scheme, adopt the asphalt concrete layer of above-mentioned structure, can improve the structural strength on asphalt concrete layer, prolong the life on asphalt concrete layer.
As a further improvement of the invention, after the slurry seal, the thick coarse grain type common asphalt concrete, the thick medium grain type modified asphalt concrete and the modified asphalt mastic macadam mixed surface material layer are paved, the rolling operation is carried out, and the steps of the rolling operation are as follows: firstly, carrying out primary pressing by adopting a light cylinder roller; then a steel wheel vibratory roller is adopted for repressing; finally, performing final pressing by adopting a double-drum type road roller; all the rolling is performed from the outer side to the inner side.
Through adopting above-mentioned technical scheme, roll and to further strengthen the structural strength on bituminous concrete layer, promote the structural stability on bituminous concrete layer.
In conclusion, the construction method for filling the river channel disclosed by the invention has the advantages that the structural strength of the bottom foundation is enhanced by arranging the cement mixing piles and the reinforced steel plates, and meanwhile, the river channel is further reinforced by arranging the first air bubble mixed light soil layer, the graded broken stone layer, the second air bubble mixed light soil layer, the stabilizing layer and the asphalt concrete layer, so that the influence of the original soft foundation of the river channel on the river channel can be weakened, and the service life of the whole river channel is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of a river-filling road according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 1;
fig. 4 is a schematic structural view of the asphalt concrete layer;
FIG. 5 is a schematic view of a matching structure of the cement mixing pile and the reinforcing steel plate;
fig. 6 is a schematic diagram of the arrangement of the adjacent cement mixing piles.
In the figure: 1. an undisturbed soil layer; 2. a mountain skin mud layer; 3. a first bubble mixed light soil layer; 4. grading a crushed stone layer; 5. a second bubble mixed light soil layer; 51. a first metal mesh; 52. a second metal mesh; 6. a stabilizing layer; 61. cement stabilized macadam lower base; 62. a cement stabilized macadam middle base; 63. an upper base layer of cement stabilized macadam; 7. an asphalt concrete layer; 71. asphalt permeable layer; 72. slurry sealing; 73. thick coarse grain type common asphalt concrete; 74. thick medium particle type modified asphalt concrete; 75. a modified asphalt mastic macadam mixed precoat; 76. modifying the emulsified asphalt adhesive layer; 81. stirring the piles with cement; 811. fixing the stud; 82. reinforcing the steel plate; 821. a fixing through hole; 822. reinforcing the through hole; 83. mounting grooves; 84. a support steel mesh; 86. anti-seepage geotextile; 9. and (6) foundation pit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 4, a river-filling road sequentially comprises an undisturbed soil layer 1, a mountain skin mud layer 2, a first air bubble mixed light soil layer 3, a graded crushed stone layer 4, a second air bubble mixed light soil layer 5, a stabilizing layer 6 and an asphalt concrete layer 7 from bottom to top. Wherein, the graded broken stone layer 4, the second air bubble mixed light soil layer 5, the stabilizing layer 6 and the asphalt concrete layer 7 are all arranged in the foundation pit 9.
Referring to fig. 5 and 6, the undisturbed soil layer 1 and the mountain mud layer 2 are provided with cement mixing piles 81 vertically arranged between the two layers and reinforcing steel plates 82 connecting the adjacent cement mixing piles 81. Wherein the length of the cement mixing pile 81 is 20 meters, and the distance from the cement mixing pile 81 to the upper end surface of the mountain mud layer 2 is 30 cm. The distances between the adjacent cement mixing piles 81 are the same, and the three adjacent cement mixing piles 81 are combined to form a regular triangle. The distance between the adjacent cement mixing piles 81 was 1.5 m.
Fixing studs 811 are embedded at the upper ends of the cement mixing piles 81, the reinforcing steel plates 82 are provided with fixing through holes 821 through which the fixing studs 811 pass, and the reinforcing steel plates 82 are fixed by fixing nuts.
The mountain skin mud layer 2 is provided with a mounting groove 83 for placing the reinforced steel plate 82, the reinforced steel plate 82 is provided with a reinforced through hole 822 penetrating through the upper end face and the lower end face of the reinforced steel plate 82, the mounting groove 83 is provided with a supporting steel mesh 84 at the lower end of the reinforced steel plate 82, and cement mortar is filled in the mounting groove 83 and the reinforced through hole 822.
As shown in fig. 1 to 4, the thickness of the first air bubble mixed light soil layer 3 is 30cm, and the thickness of the graded crushed stone layer 4 is also 30 cm.
The second air bubble mixed light soil layer 5 is provided with a first metal mesh 51 near the bottom 0.5m of the layer and a second metal mesh 52 near the top 0.5m of the layer.
The stabilization layer 6 mainly comprises a cement stabilized macadam lower base 61, a cement stabilized macadam middle base 62 and a cement stabilized macadam upper base 63. Wherein the cement content in the lower cement stabilized macadam foundation 61 is 4%, the cement content in the middle cement stabilized macadam foundation 62 is 4%, and the cement content in the upper cement stabilized macadam foundation 63 is 5%. In this example, the lower base course 61 of cement stabilized macadam is 0.20m, the middle base course 62 of cement stabilized macadam is 0.15m, and the upper base course 63 of cement stabilized macadam is 0.15 m.
And an impermeable geotextile 86 is laid between the graded gravel layer 4 and the second bubble mixed light soil layer 5, and the impermeable geotextile 86 is turned upwards along the foundation pit 9 and is fixedly connected with two sides of the upper end surface of the cement stabilized gravel lower base layer 61.
As shown in fig. 1 and 4, the asphalt concrete layer 7 is mainly provided with an asphalt permeable layer 71, a slurry seal layer 72, a modified emulsified asphalt binder layer 76, a thick coarse-grained common asphalt concrete 73, a modified emulsified asphalt binder layer 76, a thick medium-grained modified asphalt concrete 74, a modified emulsified asphalt binder layer 76 and a modified asphalt mastic and macadam mixed fabric layer 75 from bottom to top in sequence. Wherein the asphalt permeable layer 71 is 1mm, the slurry seal layer 72 is 1cm, the modified emulsified asphalt adhesive layer 76 is 0.5mm, the thick coarse grain type common asphalt concrete 73 is 8cm, the thick medium grain type modified asphalt concrete 74 is 6cm, and the modified asphalt mastic gravel mixed fabric layer 75 is 4 cm.
The construction method for filling the river channel is as follows:
s100, draining accumulated water in the pond, removing floating mud at the bottom of the pond to obtain undisturbed soil, turning over the undisturbed soil, and removing impurities in the undisturbed soil;
s200, paving a mountain skin mud layer 2 on the upper end of undisturbed soil until a riverway subgrade surface is filled, and flattening the upper end surface of the mountain skin mud layer 2;
s300, digging a foundation pit 9: excavating a foundation pit 9 by using an excavator;
s400, mounting a cement mixing pile 81: drilling a hole downwards in the mountain crust mud layer 2 by using a drilling machine, wherein the drilling depth is 20.3m, and cement slurry is driven into the drilled hole by using a high-pressure slurry pump to form a cement mixing pile 81 with the length of 20m, before the cement mixing pile 81 is cooled, fixing studs 811 are embedded into the upper end of the cement mixing pile 81, the fixing studs 811 partially extend out of the cement mixing pile 81, the number of the fixing studs 811 is the same as that of the cement mixing pile 81 adjacent to the cement mixing pile 81, and then the drilling machine is moved to the installation position of the next cement mixing pile 81 to perform construction of the next cement mixing pile 81;
s401, paving a mountain skin mud layer 2 at the upper end of a cement mixing pile 81, digging a mounting groove 83 for placing a reinforced steel plate 82 above the mountain skin mud layer 2, and enabling a fixing stud 811 to extend out of the bottom of the mounting groove 83;
s402, placing the supporting steel mesh 84 on the bottom surface of the mounting groove 83, and inserting the two sides of the steel mesh into the mountain leather mud layers 2 on the two sides of the mounting groove 83;
s410, paving a reinforced steel plate 82: mounting reinforced steel plates 82 between the cement mixing piles 81, wherein fixing through holes 821 for mounting fixing studs 811 are formed in two sides of each reinforced steel plate 82, the reinforced steel plates 82 are sleeved on the fixing studs 811, and the reinforced steel plates 82 are fixed by fixing nuts;
s411, injecting cement mortar 85 between the installation groove 83 and the reinforced steel plate 82 through the reinforced through hole 822, and filling the reinforced through hole 822;
s420, paving a layer of mountain skin mud on the upper ends of the cement mixing pile 81 and the reinforced steel plate 82, wherein the distance between the upper end face of the mountain skin mud layer 2 and the reinforced steel plate 82 is not less than 30 cm;
s500, paving a first air bubble mixed light soil layer 3, wherein the thickness of the first air bubble mixed light soil layer 3 is 30cm in the embodiment;
s600, paving a graded broken stone layer 4, wherein the thickness of the graded broken stone layer 4 is 30cm in the embodiment;
s610, paving anti-seepage geomembranes on the upper end surface of the graded crushed stone layer 4 and the inner walls of the two sides of the foundation pit 9, wherein the anti-seepage geomembranes are transversely paved along a riverway filling path and are tightly attached to the upper end surface of the graded crushed stone layer 4;
s700, laying a second bubble mixed light soil layer 5, wherein the thickness of the second bubble mixed light soil layer 5 is not less than 150 cm; the second bubble mixed light soil layer 5 is poured in a layered and blocking mode, the single-layer pouring thickness is 0.3-0.8m, after the first layer is poured, a first metal net 51 is installed on the upper end face of the second bubble mixed light soil layer 5, before the last layer is poured, a second metal net 52 is installed on the upper end face of the second bubble mixed light soil layer 5, in the embodiment, the thickness of the second bubble mixed light soil layer 5 is 2m, the total pouring is divided into 5 times, and the pouring thicknesses are 0.5m, 0.3m, 0.4m and 0.5m in sequence;
s800, paving a stabilizing layer 6, wherein the concrete steps of paving the stabilizing layer 6 are as follows: s801, arranging steel templates on two sides of a river-filling road; s810, paving the cement stabilized macadam lower base layer 61, wherein the cement content in the cement stabilized macadam lower base layer 61 is 4%; s811, folding the two side edges of the anti-seepage geomembrane to the upper end surface of the cement stabilized macadam lower base layer 61, and tightly attaching the two side edges of the anti-seepage geomembrane to the two sides of the upper end surface of the cement stabilized macadam lower base layer 61 by using drill nails; s820, paving the base course 62 in the cement-stabilized macadam, wherein the cement content of the base course 62 in the cement-stabilized macadam is 4%; s830, paving the cement stabilized macadam upper base layer 63, wherein the cement content of the cement stabilized macadam upper base layer 63 is 5%; in the paving process of the lower cement stabilized macadam base layer 61, the middle cement stabilized macadam base layer 62 and the upper cement stabilized macadam base layer 63, paving is carried out by adopting a paver, and within 2 hours after paving of each layer, rolling is carried out by adopting a vibratory roller, in the embodiment, the thickness of the stabilizing layer 6 is 0.5m, wherein the lower cement stabilized macadam base layer 61 is 0.2m, the middle cement stabilized macadam base layer 62 is 0.15m, and the upper cement stabilized macadam base layer 63 is 0.15 m;
s900, paving an asphalt concrete layer 7, wherein the S900 comprises the following specific steps: s910, before paving the asphalt concrete layer 7, spraying an asphalt permeable layer 71 on the upper end of the stabilizing layer 6; s920, paving the slurry seal layer 72, wherein the thickness of the slurry seal layer 72 is 1 cm; s920, paving the thick coarse grain type common asphalt concrete 73, wherein before the thick coarse grain type common asphalt concrete 73 is paved, a layer of modified emulsified asphalt adhesive layer 76 with the thickness of 0.5mm is scattered on the upper end surface of the slurry seal 72, and S930, paving the thick medium grain type modified asphalt concrete 74, wherein before the thick medium grain type modified asphalt concrete 74 is paved, a layer of modified emulsified asphalt adhesive layer 76 with the thickness of 0.5mm is scattered on the upper end surface of the thick coarse grain type common asphalt concrete 73; s940, paving the modified asphalt mastic macadam mixed precoat 75, and before paving the modified asphalt mastic macadam mixed precoat 75, scattering a layer of modified emulsified asphalt adhesive 76 with the thickness of 0.5mm on the upper end surface of the thick medium-sized modified asphalt concrete 74.
Wherein, the slurry seal 72, the thick coarse grain type common asphalt concrete 73, the thick medium grain type modified asphalt concrete 74 and the modified asphalt mastic gravel mixed surface material layer 75 are paved by a paver, in the embodiment, the asphalt permeable layer 71 is 1mm, the slurry seal 72 is 1cm, the thick coarse grain type common asphalt concrete 73 is 8cm, the thick medium grain type modified asphalt concrete 74 is 6cm, and the modified asphalt mastic gravel mixed surface material layer 754 cm; after the thin slurry seal layer 72, the thick coarse grain type common asphalt concrete 73, the thick medium grain type modified asphalt concrete 74 and the modified asphalt mastic macadam mixed precoat 75 are paved, rolling operation is carried out, and the steps of the rolling operation are as follows: firstly, carrying out primary pressing by adopting a light cylinder roller; then a steel wheel vibratory roller is adopted for repressing; finally, performing final pressing by adopting a double-drum type road roller; all the rolling is performed from the outer side to the inner side.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. A construction method for filling a river channel is characterized by comprising the following steps: s100, draining accumulated water in the pond, removing floating mud at the bottom of the pond to obtain undisturbed soil, turning over the undisturbed soil, and removing impurities in the undisturbed soil; s200, paving a mountain skin mud layer (2) on the upper end of undisturbed soil until a river way subgrade surface is filled, and flattening and compacting the mountain skin mud layer (2); s300, digging a foundation pit (9): excavating a foundation pit (9) by using an excavator; s400, mounting a cement mixing pile (81): drilling downwards on the mountain skin mud layer (2) by using a drilling machine, wherein the drilling depth is not less than 15m, driving cement slurry into the drilled hole by using a high-pressure slurry spraying pump to form a cement mixing pile (81), moving the drilling machine to the installation position of the next cement mixing pile (81), and constructing the next cement mixing pile (81); s500, paving a first air bubble mixed light soil layer (3): s600, paving a graded broken stone layer (4), wherein the thickness of the graded broken stone layer (4) is not less than 30 cm; s700, laying a second bubble mixed light soil layer (5), wherein the thickness of the second bubble mixed light soil layer (5) is not less than 150 cm; s800, laying a stabilizing layer (6), wherein the stabilizing layer (6) is a cement stabilized macadam base layer, and the thickness of the stabilizing layer (6) is not less than 30 cm; s900, paving an asphalt concrete layer (7), wherein the S400 further comprises the following steps: before the cement mixing pile (81) is cooled, a fixing stud (811) is embedded into the upper end of the cement mixing pile (81), and part of the fixing stud (811) extends out of the cement mixing pile (81); the following steps are also included between S400 and S500: s410, paving a reinforced steel plate (82): reinforcing steel plates (82) are arranged between the cement mixing piles (81), fixing through holes (821) for mounting fixing studs (811) are formed in two sides of each reinforcing steel plate (82), each reinforcing steel plate (82) is sleeved on each fixing stud (811), and each reinforcing steel plate (82) is fixed through a fixing nut; the following steps are also included between S400 and S410: s401, paving a mountain skin mud layer (2) at the upper end of a cement mixing pile (81), digging a mounting groove (83) for placing a reinforcing steel plate (82) above the mountain skin mud layer (2), and enabling a fixing stud (811) to extend out of the bottom of the mounting groove (83); the following steps are also included between S410 and S500: s420, paving a layer of mountain skin mud on the upper ends of the cement mixing pile (81) and the reinforced steel plate (82), wherein the distance between the upper end face of the mountain skin mud layer (2) and the reinforced steel plate (82) is not less than 30 cm; the reinforced steel plate (82) is provided with a plurality of reinforced through holes (822) penetrating through the upper end face and the lower end face of the reinforced steel plate (82), and the following steps are further included between the S410 and the S420: s411, cement mortar (85) is injected between the installation groove (83) and the reinforced steel plate (82) through the reinforced through hole (822), and the reinforced through hole (822) is filled.
2. The method for constructing a riverway filling according to claim 1, wherein the step between S401 and S410 is further as follows: s402, placing a supporting steel net (84) on the bottom surface of the mounting groove (83), and inserting the two sides of the steel net into the mountain leather mud layers (2) on the two sides of the mounting groove (83).
3. The method for constructing a riverway filling according to claim 1, wherein the step S800 mainly comprises the steps of: s801, arranging steel templates on two sides of a river-filling road; s810, paving a cement-stabilized macadam lower base layer (61), wherein the cement content in the cement-stabilized macadam lower base layer (61) is 4%; s820, paving a base course (62) in the cement-stabilized macadam, wherein the cement content of the base course (62) in the cement-stabilized macadam is 4%; s830, paving an upper cement stabilized macadam foundation (63), wherein the cement content of the upper cement stabilized macadam foundation (63) is 5%; the paving process of the cement stabilized macadam lower base layer (61), the cement stabilized macadam middle base layer (62) and the cement stabilized macadam upper base layer (63) is that pavers are adopted to pave, and within 2 hours after paving of each layer, a vibratory roller is adopted to roll.
4. The method for constructing a riverway filling according to claim 3, wherein the following steps are further included between S600 and S700: s610, paving anti-seepage geomembranes on the upper end surface of the graded gravel layer (4) and the inner walls of the two sides of the foundation pit (9), wherein the anti-seepage geomembranes are transversely paved along a riverway filling path and are tightly attached to the upper end surface of the graded gravel layer (4); the following steps are also included between the steps S810 and S820: s811, folding the two side edges of the anti-seepage geomembrane to the upper end surface of the cement stabilized macadam lower base layer (61), and tightly attaching the two side edges of the anti-seepage geomembrane to the two sides of the upper end surface of the cement stabilized macadam lower base layer (61) by using the drill nails.
5. The method for constructing a riverway filling according to claim 4, wherein the step S700 is as follows: the second bubble mixed light soil layer (5) is poured in a layered and blocking mode, the single-layer pouring thickness is 0.3-0.8m, after the first layer is poured, a first metal net (51) is installed on the upper end face of the second bubble mixed light soil layer (5), and before the last layer is poured, a second metal net (52) is installed on the upper end face of the second bubble mixed light soil layer (5).
6. The method for constructing a riverway filling according to claim 1, wherein the S900 comprises the following steps: s910, before paving the asphalt concrete layer (7), spraying an asphalt permeable layer (71) on the upper end of the stabilizing layer (6); s920, paving a slurry seal layer (72); s920, paving thick coarse-grained common asphalt concrete (73); s930, paving thick medium-grain modified asphalt concrete (74); s940, paving a modified asphalt mastic macadam mixed precoat (75); and the slurry seal layer (72), the thick coarse grain type common asphalt concrete (73), the thick medium grain type modified asphalt concrete (74) and the modified asphalt mastic broken stone mixed precoat (75) are paved by adopting a paver.
7. The method for constructing the riverway filling way according to claim 6, wherein after the slurry seal (72), the coarse-grained ordinary asphalt concrete (73), the medium-grained modified asphalt concrete (74) and the modified asphalt mastic and macadam mixed precoat (75) are paved, rolling operation is performed, and the steps of the rolling operation are as follows: firstly, carrying out primary pressing by adopting a light cylinder roller; then a steel wheel vibratory roller is adopted for repressing; finally, performing final pressing by adopting a double-drum type road roller; all the rolling is performed from the outer side to the inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711230706.7A CN107938456B (en) | 2017-11-29 | 2017-11-29 | Construction method for filling river channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711230706.7A CN107938456B (en) | 2017-11-29 | 2017-11-29 | Construction method for filling river channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107938456A CN107938456A (en) | 2018-04-20 |
| CN107938456B true CN107938456B (en) | 2020-10-09 |
Family
ID=61946827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711230706.7A Expired - Fee Related CN107938456B (en) | 2017-11-29 | 2017-11-29 | Construction method for filling river channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107938456B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021172B (en) * | 2019-12-18 | 2021-08-10 | 诚通凯胜生态建设有限公司 | Road construction process |
| CN111620631B (en) * | 2020-06-30 | 2021-11-30 | 中国葛洲坝集团路桥工程有限公司 | Recycled aggregate mixture and application thereof |
| CN111809599B (en) * | 2020-07-27 | 2021-08-31 | 福建兴港建工有限公司 | Foundation anti-settlement structure and construction method |
| CN114108785B (en) * | 2021-12-21 | 2023-06-20 | 中铁七局集团有限公司 | Pool bottom waterproof structure of oversized regulating and accumulating pool and construction process thereof |
| CN114990955A (en) * | 2022-05-31 | 2022-09-02 | 广东平润建设工程有限公司 | Municipal road structure in urban soft soil foundation zone and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967785A (en) * | 2010-09-17 | 2011-02-09 | 唐山市滨海大道建设指挥部 | High-grade highway structure of soaked sand dredger filling embankment in coastal region |
| WO2015117818A1 (en) * | 2014-02-07 | 2015-08-13 | Electricite De France | Technical embankment stabilization method |
| CN105926393A (en) * | 2016-04-27 | 2016-09-07 | 重庆燕皓建筑材料有限公司 | Method for filling embankments by using bubble mixed light soil |
| CN206157508U (en) * | 2016-10-18 | 2017-05-10 | 中水电四局南方（珠海）工程有限公司 | Light soil roadbed structure |
| CN206352307U (en) * | 2016-12-29 | 2017-07-25 | 西安建筑科技大学 | A kind of iron tower foundation for frozen soil foundation |
| CN206512547U (en) * | 2017-02-06 | 2017-09-22 | 南京优品盛源工程技术有限公司 | A kind of repairing type bituminous paving |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2003159C2 (en) * | 2009-07-09 | 2011-01-12 | Dijk Maasland B V Van | METHOD FOR RENOVATING A ROAD CONSTRUCTION |
-
2017
- 2017-11-29 CN CN201711230706.7A patent/CN107938456B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967785A (en) * | 2010-09-17 | 2011-02-09 | 唐山市滨海大道建设指挥部 | High-grade highway structure of soaked sand dredger filling embankment in coastal region |
| WO2015117818A1 (en) * | 2014-02-07 | 2015-08-13 | Electricite De France | Technical embankment stabilization method |
| CN105926393A (en) * | 2016-04-27 | 2016-09-07 | 重庆燕皓建筑材料有限公司 | Method for filling embankments by using bubble mixed light soil |
| CN206157508U (en) * | 2016-10-18 | 2017-05-10 | 中水电四局南方（珠海）工程有限公司 | Light soil roadbed structure |
| CN206352307U (en) * | 2016-12-29 | 2017-07-25 | 西安建筑科技大学 | A kind of iron tower foundation for frozen soil foundation |
| CN206512547U (en) * | 2017-02-06 | 2017-09-22 | 南京优品盛源工程技术有限公司 | A kind of repairing type bituminous paving |
Non-Patent Citations (1)
| Title |
|---|
| 软土地区新城建设中道路沉降的治理措施;傅朝元等;《城市道桥与防洪》;20051115(第6期);第47页第3节，图2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107938456A (en) | 2018-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107938456B (en) | Construction method for filling river channel | |
| CN102140771B (en) | Construction method for processing saline soil roadbed by separation layer | |
| CN111893827A (en) | Construction process of urban trunk road | |
| CN109958018A (en) | A kind of heavy rainfall urban road water-permeable pavement structure and its construction method | |
| JP5815360B2 (en) | Improved ground and its construction method | |
| CN104452510A (en) | Immediate construction method of rural road | |
| CN110670436A (en) | Structure for preventing urban road subgrade from non-uniform settlement and construction method thereof | |
| CN112681043B (en) | Roadbed splicing widening structure and construction method | |
| CN109537389B (en) | EPS (expandable polystyrene) lower embankment structure and construction method thereof | |
| CN109082961B (en) | Road construction method with steep slope | |
| RU2337205C1 (en) | Method of earthwork fabric on weak natural basis | |
| RU2516408C1 (en) | Road structure | |
| CN115418908A (en) | Sponge seepage and drainage system for sidewalk and construction method | |
| CN113308957B (en) | Construction method of retaining wall light soil wide-spliced embankment | |
| CN214497785U (en) | Hollow block rainwater infiltration inspection shaft | |
| CN112575638B (en) | Roadbed reinforcing structure adopting steel reinforcement cage bamboo shoot piles and construction process of roadbed reinforcing structure | |
| RU2344231C1 (en) | Method of foundation bed construction by horizontal reinforcing with precast concrete components | |
| KR20140114711A (en) | Improvement Method for Base Ground of Pavement Block using Light-Weighted Foam Soil | |
| CN114411921A (en) | Method and structure for building roadbed drainage ditch through road reconstruction and extension | |
| RU2273687C1 (en) | Roadbed and roadbed forming method | |
| RU2516603C1 (en) | Road structure | |
| CN112112022A (en) | Construction method for quickly constructing road | |
| CN113463457B (en) | Roadbed structure for penetrating through slurry section and construction method thereof | |
| CN211142682U (en) | Structure for preventing urban road subgrade from non-uniform settlement | |
| CN214939086U (en) | A side direction restraint reinforced structure for existing loess road bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 Termination date: 20211129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |