CN117846019A - Retaining wall system with drainage filtering function and construction method - Google Patents
Retaining wall system with drainage filtering function and construction method Download PDFInfo
- Publication number
- CN117846019A CN117846019A CN202311431605.1A CN202311431605A CN117846019A CN 117846019 A CN117846019 A CN 117846019A CN 202311431605 A CN202311431605 A CN 202311431605A CN 117846019 A CN117846019 A CN 117846019A
- Authority
- CN
- China
- Prior art keywords
- retaining wall
- template
- concrete block
- drain pipe
- layer
- 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.)
- Pending
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 75
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 239000011380 pervious concrete Substances 0.000 claims abstract description 47
- 239000002689 soil Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 10
- 239000004567 concrete Substances 0.000 claims description 66
- 235000019993 champagne Nutrition 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 5
- 239000004746 geotextile Substances 0.000 claims description 5
- 239000011178 precast concrete Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 239000013049 sediment Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 masonry Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0283—Retaining or protecting walls characterised by constructional features of mixed type
-
- 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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Retaining Walls (AREA)
Abstract
The invention discloses a retaining wall system with a drainage filtering function and a construction method, wherein the system comprises a retaining wall, a drain pipe, a first prefabricated pervious concrete block, a reverse filtering layer, sandy soil, a second prefabricated pervious concrete block, an inner template, an outer template and the first prefabricated pervious concrete block, one side of the retaining wall body is inclined, the first prefabricated pervious concrete block is fixed with a side slope of the retaining wall, a connecting sleeve is arranged in the first prefabricated pervious concrete block, the connecting sleeve is of a hollow structure with threads inside, two ends of the drain pipe are respectively inserted into the first prefabricated pervious concrete block and the second prefabricated pervious concrete block to be fixed, the inner template and the outer template are arranged on two sides of the retaining wall, the first prefabricated pervious concrete block is tightly attached to the inner template through bolts, the outer side of the inner template is attached to sandy soil, the drain pipe passes through the inner template to be arranged, the reverse filtering layer is buried in the sandy soil, the reverse filtering layer is fixed with the inner template, and the problems that the drain pipe installation structure is unstable and the reverse filtering layer is settled along with backfilling soil in the construction process are solved.
Description
Technical Field
The invention relates to the technical field of retaining walls, in particular to a retaining wall system with a drainage filtering function and a construction method.
Background
At present, a retaining wall is generally used as a protective structure in highway engineering, the retaining wall is a structure for preventing soil landslide and protecting the stability of a highway side slope, and is a wall body which is generally made of concrete, masonry, steel bars and other materials and is used for supporting and fixing the side slope soil, a drain pipe is arranged on the wall body to serve as a water discharge hole and is used for draining water brought to backfill soil by rainfall after the retaining wall is dredged, and whether the drain pipe and a reverse filtering layer are properly constructed directly influences the safety and the use effect of the retaining wall;
the prior art has the defects that: the traditional drain pipe installation method uses a reinforcing steel bar bracket, but the installation of the reinforcing steel bar bracket for fixing the drain pipe is unstable due to the fact that no reinforcing steel bar exists in a plain concrete retaining wall, the problems of offset and the like easily occur during concrete pouring, and the drain pipe is blocked and the gradient is not in accordance with design requirements and the like are caused; the construction of the back filtering layer behind the wall is generally to laminate backfill soil to the position of the drain hole behind the wall, then place a gravel back filtering layer wrapped by geotextile under the Fang Huitian clay layer of the drain hole; in the method, once the compactness of the backfill soil is not up to the requirement, sedimentation occurs, and then the reverse filter layer fails; multiple filtration, effectively avoid one ring to lose efficacy, and lead to the filter effect not good.
Disclosure of Invention
In order to meet the above-mentioned needs of the prior art or improve, the invention provides a retaining wall system with a drainage filtering function and a construction method, in order to achieve the above-mentioned purpose, the system comprises a retaining wall, a drain pipe, a first prefabricated pervious concrete block, a reverse filtering layer, sandy soil, a second prefabricated pervious concrete block, an inner template, an outer template and a first prefabricated pervious concrete block, wherein one wall body of the retaining wall is inclined, the first prefabricated pervious concrete block of the retaining wall is fixed by means of an inclined slope of the retaining wall, a connecting sleeve is arranged in the first prefabricated pervious concrete block, the connecting sleeve is a hollow device with threads, two ends of the drain pipe are respectively inserted into the first prefabricated pervious concrete block and the second prefabricated pervious concrete block for fixing, the inner template and the outer template are arranged on the inner side and the outer side of the retaining wall, the first prefabricated pervious concrete block is tightly attached to the inner template and is bolted, the outer side of the inner template is attached to sandy soil, the reverse filtering layer is buried in the sandy soil and is fixed with the inner template, and the problem that the installation structure of the drain pipe is unstable and the reverse filtering layer is settled along with the backfilling soil in the construction process is solved.
The invention provides a retaining wall system with a drainage filtering function, which comprises a retaining wall, a drain pipe, a first prefabricated permeable concrete block, a reverse filtering layer, sandy soil, foundation backfill earthwork, a second prefabricated permeable concrete block, an inner template and an outer template; wherein,
the retaining wall body is inclined at one side, a first precast permeable concrete block is fixed by means of an inclined side slope of the retaining wall, foundation backfill earthwork is arranged at the bottom of the retaining wall, the first precast permeable concrete block is fixed with the side slope of the retaining wall, a connecting sleeve is arranged in the first precast permeable concrete block, and the connecting sleeve is of a hollow structure with threads inside;
two ends of the drain pipe are respectively inserted into the first precast permeable concrete block and the second precast permeable concrete block for fixing; the inner template with the outer template set up in the inside and outside both sides of retaining wall, first prefabricated permeable concrete piece is hugged closely the inner template bolt fastening, the inner template outside with sandy soil laminating, the drain pipe passes the inner template sets up, the reverse filter layer bury in sandy soil, and with the inner template is fixed, has solved the problem that drain pipe mounting structure is unstable, reverse filter layer subsides along with the backfill in the work progress.
Further, the first precast permeable concrete block is of a wedge-shaped structure, the gradient of the wedge-shaped structure is set according to the gradient of the retaining wall, and the first precast permeable concrete block is attached to the retaining wall.
Further, the inner die plate comprises an inner nut and an inner bolt, the inner bolt penetrates through a die plate hole in the inner die plate, the die plate hole is rotationally fixed with the connecting sleeve, and the outer portion of the inner die plate is fixed with the inner bolt through the inner nut.
Further, the inner nut is of a circular grid-shaped stainless steel structure, and the outer diameter of the inner nut is larger than the diameter of the drain pipe; the inner bolt is a broken line type bolt, and the inner diameter of the drain pipe is larger than that of the first prefabricated permeable concrete block.
Further, the inner template is drilled with holes, and the holes are connected with a drain pipe.
Further, the reverse filtering layer is a small champagne gabion with broken stones inside, geotextile is wrapped outside the small champagne gabion, a fixing sleeve is arranged inside the small champagne gabion, and the fixing sleeve is fixed with the inner nut.
Further, the drain pipe comprises an inner layer and a middle layer which are arranged from inside to outside, the inner layer is of a fine net structure, and the inner layer is fixedly connected with the first precast concrete block; the middle layer is sleeved outside the inner layer.
Further, the drain pipe comprises a bracket and an outer layer, wherein the middle layer is fixed on the inner wall of the outer layer at the outer side through the bracket, and the outer layer is in contact with concrete.
Further, the middle layer is slidably connected with the inner layer, and the middle layer is drawn out along the axial direction of the drain pipe.
As another aspect of the present invention, the present invention also provides a method for constructing a retaining wall system having a drainage filtering function, comprising:
s100, excavating a retaining wall excavation line, pouring a retaining wall bottom foundation, and backfilling earthwork of the foundation after the retaining wall bottom foundation is hardened, so that the retaining wall is fixed;
s200, installing an inner template of the retaining wall, drilling a template hole on the inner template at the position of a drain pipe, tightly attaching a first prefabricated permeable concrete block to the inner template, rotating and fixing the inner template by penetrating the template hole and a connecting sleeve through an inner bolt, and fixing the inner template outside the outer template by using an inner nut;
s300, penetrating a drain pipe into a first prefabricated permeable concrete block;
s400, firstly standing up the retaining wall outer template before splicing, drilling a hole in the center of the position corresponding to the drain pipe, tightly attaching the second prefabricated permeable concrete block to the outer template, and rotationally fixing the second prefabricated permeable concrete block with the connecting sleeve by using an outer bolt to penetrate through a template hole, and fixing the outer part of the outer template by using an outer nut;
s500, fixing a second prefabricated permeable concrete block on the outer template of the retaining wall, and inserting the second prefabricated permeable concrete block into a drain pipe for fixing;
s600, carrying out subsequent fixed installation work on the templates, reinforcing and supporting, pouring concrete between the inner template and the outer template, and removing the templates after the concrete strength meets the requirement of removing the templates;
s700, recycling part parts, and recycling the second precast permeable concrete blocks, the outer nuts and the outer bolts after the template is removed; the first precast permeable concrete block and the inner nut are reserved in the drain pipe and are fixed at the retaining wall body by the inner bolt again;
s800, backfilling and fixing the reverse filtering layer, backfilling the reverse filtering layer by sandy soil in a layered manner, compacting the reverse filtering layer under the drain pipe, and inserting and fixing the reverse filtering layer at the wall body through an inner bolt.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
1. the invention provides a retaining wall system with a drainage filtering function, which comprises a retaining wall, a drain pipe, a first prefabricated pervious concrete block, a reverse filtering layer, sandy soil, a second prefabricated pervious concrete block, an inner template, an outer template and a first prefabricated pervious concrete block, wherein one side wall body of the retaining wall is inclined, the first prefabricated pervious concrete block of the retaining wall body is fixed by means of an inclined slope of the retaining wall, a connecting sleeve is arranged in the first prefabricated pervious concrete block, the connecting sleeve is a hollow device with threads inside, two ends of the drain pipe are respectively inserted into the first prefabricated pervious concrete block and the second prefabricated pervious concrete block to be fixed, the inner template and the outer template are arranged on the inner side and the outer side of the retaining wall, the first prefabricated pervious concrete block is tightly attached to the inner template and is fixedly connected with the sandy soil, the drain pipe passes through the inner template to be arranged in the reverse filtering layer, and is fixed with the inner template, and the problem that the mounting structure of the drain pipe is unstable and the reverse filtering layer is settled along with backfilling soil in the construction process is solved.
2. The retaining wall system with the drainage filtering function is characterized in that the prefabricated concrete blocks are arranged on the templates, and the drainage pipe is sleeved on the prefabricated concrete blocks to play a role in positioning and fixing.
3. The retaining wall system with the drainage filtering function provided by the invention has the advantages that the adopted reverse filtering layer can be fixed with the precast concrete blocks, compared with the traditional method that the broken stone reverse filtering layer comprising geotechnical cloth is directly placed on backfill soil, the reverse filtering layer is prevented from losing function caused by sinking of the backfill soil in the later period. Compared with the traditional method of filtering water through the reverse filtering layer, the latticed nuts, the pervious concrete and the drain pipe are combined to realize multiple filtration, and the problem that one ring fails to work to cause poor filtering effect is effectively avoided.
Drawings
FIG. 1 is a schematic cross-sectional view of a retaining wall system with drainage filtering according to an embodiment of the present invention;
fig. 2 is a schematic view showing a drain pipe installation structure of a retaining wall system with a drain filtering function according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a bolt structure of a retaining wall system with drainage filtering function according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a drain pipe of a retaining wall system with drainage filtering according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a drain pipe of a retaining wall system with drainage filtering according to an embodiment of the present invention;
fig. 6 is a flowchart of a construction method of a retaining wall system with a drainage filtering function according to an embodiment of the present invention.
Like reference numerals denote like technical features throughout the drawings, in particular: 1-retaining wall, 2-drain pipe, 3-first prefabricated pervious concrete block, 4-internal nut, 5-internal bolt, 6-reverse filtering layer, 7-sandy soil, 8-retaining wall excavation line, 9-basic backfill earthwork, 10-second prefabricated pervious concrete block, 11-external nut, 12-external bolt, 13-internal template, 14-external template, 15-internal layer, 16-middle layer, 17-external layer, 19-support.
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. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The retaining wall system with the drainage filtering function as shown in fig. 1-6 comprises a retaining wall 1, a drain pipe 2, a first prefabricated pervious concrete block 3, a reverse filtering layer 6, sandy soil 7, foundation backfill earthwork 9, a second prefabricated pervious concrete block 10, an inner formwork 13, an outer formwork 14 and the first prefabricated pervious concrete block 3, wherein the retaining wall 1 is in an inclined state, the foundation backfill earthwork 9 is arranged at the bottom of the retaining wall 1, the retaining wall 1 is fixed by means of an inclined slope of the retaining wall 1, and the first prefabricated pervious concrete block 3 is arranged to be in wedge shape according to the slope and is attached to the retaining wall 1; the built-in connecting sleeve of the first precast pervious concrete block 3, the connecting sleeve is a hollow device with threads inside, two ends of the drain pipe 2 are respectively inserted into the first precast pervious concrete block 3 and the second precast pervious concrete block 10 to be fixed, the inner template 13 and the outer template 14 are arranged on the inner side and the outer side of the retaining wall 1, the first precast pervious concrete block 3 is tightly attached to the inner template 13 and is fixed by bolts, the outer side of the inner template 13 is attached to sandy soil 7, the drain pipe 2 passes through the inner template 13 to be arranged, the reverse filter layer 6 is buried in sandy soil 7 and is fixed with the inner template 13, and the problems that a drain pipe installation structure is unstable and the reverse filter layer is settled along with backfill soil in the construction process are solved.
Further, as shown in fig. 1-2, a hole is drilled in the center of the position, corresponding to the drain pipe 2, of the inner template 13, the first precast permeable concrete block 3 is tightly attached to the inner template 13, the inner bolt 5 passes through the template hole on the inner template 13 and is rotationally fixed with the connecting sleeve, the outer part of the inner template 13 is fixedly connected with the inner bolt 5 by using an inner nut 4, the inner nut 4 is of a circular grid-shaped stainless steel structure, and the outer diameter of the inner nut 4 is slightly larger than the diameter of the drain pipe 2; further, the inner bolt 5 is a broken line type bolt, the head of the inner bolt is provided with threads, and the inner diameter of the drain pipe 2 is slightly larger than that of the first precast permeable concrete block 3; preferably, the first precast water permeable concrete segments 3 are about 3-5cm long; the system ensures the drainage gradient and the installation quality of the drainage pipe 2.
Further, as shown in fig. 1 to 5, the drain pipe 2 comprises a three-layer structure arranged from inside to outside, wherein the inner layer 15 is of a fine mesh structure, and the inner layer 15 is in contact with and fixedly connected with the precast concrete segments 3; the middle layer 16 is sleeved outside the inner layer 15, the middle layer 16 is fixed on the inner wall of the outer layer 17 at the outer side through a bracket 19, and the outer layer 17 contacts with concrete to play a role in firmly fixing the drain pipe 2; in the drainage process of the drain pipe 2, silt sediment is filtered from the inner layer 15 to the middle layer 16, the inner layer 15 still does not influence the drainage function of the silt sediment even after the middle layer 16 is piled up, and during rainfall, multiple filtration can be performed through the reverse filtering layer, the nuts, the permeable concrete and the internal structure of the drain pipe, so that the problems of drain pipe blockage, pollution and the like are avoided; further, the middle layer 16 is slidably connected with the inner layer 15, and the middle layer 16 is drawn out along the axial direction, so that the silt attached to the middle layer 16 can be removed and then replaced periodically, and the normal function of the silt is ensured.
Further, as shown in fig. 1 and 2, the reverse filter layer 6 is a small champagne gabion with broken stones inside, geotextile is wrapped outside the small champagne gabion, a fixing sleeve is arranged inside the small champagne gabion and can be fixed with the inner nut 4, the reverse filter layer 6 is buried in sandy soil 7 at a position corresponding to the end part of the drain pipe 2, and the reverse filter layer 6 is fixedly inserted on the retaining wall 1 through the inner bolt 5 to play a role in filtering and blocking prevention. Compared with the traditional method that the crushed stone reverse filter layer 6 comprised by geotextile is directly placed on backfill soil, the reverse filter layer 6 adopted by the scheme can be fixed with precast concrete blocks, and the reverse filter layer is prevented from losing function due to sinking of the backfill soil in the later period; compared with the traditional method of filtering water through the reverse filtering layer 6, the latticed nuts, the pervious concrete and the drain pipe 2 are combined to realize multiple filtration, and the problem that one ring fails and the filtering effect is poor is effectively avoided.
Further, when the retaining wall 1 is supported, the inner template 13 is firstly installed, the inner template 13 is drilled at the position of the drainage pipe 2, the first prefabricated permeable concrete block 3 is tightly attached to the inner template 13, and the first prefabricated permeable concrete block is rotationally fixed with the connecting sleeve through a template hole by bolts; then the outer part of the inner template 13 is fixed by nuts, and the drain pipe 2 can be sleeved into the inner side first precast permeable concrete block 3 for one-time fixation; the outer template 14 on the outer side of the retaining wall is fixed with the precast permeable concrete blocks 14 before being installed, when the outer template 14 is installed, the second precast permeable concrete block 3 on the outer template 14 can be inserted into the drain pipe 2 directly, the other end of the outer bolt 12 penetrates out of the outer side of the outer template 14, and finally the outer bolt 12 is fixed by adopting an outer nut 11 in a screwed manner; the procedures of installing and fixing the drain pipe 2, installing split bolts and brackets and the like are carried out; after the engineering construction of the inner template 13 and the outer template 14 is finished, concrete can be poured, and the construction of the retaining wall 1 is finished; further, after the strength of the poured concrete meets the requirement, the template is removed, the second precast permeable concrete block 3, the first precast permeable concrete block 3 and the fixed outer nut 11 are removed for the bolt 12 device, so that the repeated use is convenient; after the inner die plate 13 is dismantled, the inner nut 4 can be rotated again and the inner bolt 5 is fixed, because the diameter of the inner nut 4 is larger than the drain hole 2, the first precast permeable concrete block 3 is convenient to fix with the retaining wall 1, further, compared with the prior drain pipe 2, the plugging is easy to form, so that the drainage capacity is reduced, the system optimizes the structural form of the drain pipe 2, a certain gap exists between three layers of the drain pipe 2, and the damage to the drain pipe body caused by thermal expansion and cold contraction of the drain pipe 2 body due to temperature change is prevented.
As another aspect of the present invention, the present invention also provides a construction method of a retaining wall system having a drainage filtering function, the method comprising the steps of:
s100, excavating a retaining wall excavation line 8, pouring a foundation at the bottom of the retaining wall 1, removing a mould after the foundation at the bottom of the retaining wall 1 is hardened, backfilling foundation earthwork 9, and fixing the retaining wall 1;
s200, installing an inner template 13 of the retaining wall 1, drilling a template hole on the inner template 13 at the position of the drain pipe 2, tightly attaching the first precast permeable concrete block 3 to the inner template 13, rotationally fixing the inner template 13 by penetrating the template hole and a connecting sleeve through the template hole through an inner bolt 5, and fixing the inner template 13 by using an inner nut 4 outside the outer template 13;
s300, penetrating the drain pipe 2 into the first precast permeable concrete block 3;
s400, the retaining wall outer template 14 is firstly erected before being spliced, a hole is drilled in the center of the position corresponding to the drain pipe 2, the second prefabricated water permeable concrete block 10 is tightly attached to the outer template 14 and is rotationally fixed with the connecting sleeve by using the outer bolts 12 through template holes, and the outer part of the outer template 14 is fixed by using the outer nuts 11;
s500, fixing a second prefabricated pervious concrete block 10 on the retaining wall outer template 14, and inserting the second prefabricated pervious concrete block into the drain pipe 2 for fixing;
s600, performing subsequent fixed installation work of the templates, reinforcing and supporting, pouring concrete between the inner template 13 and the outer template 14, and removing the templates after the concrete strength meets the requirement of removing the templates;
s700, recycling part parts, and recycling the second precast permeable concrete blocks 10, the outer nuts 11 and the outer bolts 12 for reuse after the template is removed; the first precast permeable concrete block 3 and the inner nut 4 are reserved in the drain pipe 2 and are fixed at the wall body of the retaining wall 1 again by the inner bolt 5;
s800, backfilling and fixing the back filtering layer 6, backfilling the back filtering layer 6 by sandy soil in layers, compacting the back filtering layer 6 under the drain pipe 2, and fixing the back filtering layer 6 at a wall body through inserting the inner bolts 5;
according to the retaining wall system, the prefabricated concrete blocks are installed on the templates, the drainage pipe is sleeved on the prefabricated concrete blocks to play a role in positioning and fixing, and compared with a traditional method, the retaining wall system can prevent the drainage pipe from shifting due to concrete pouring vibration, so that the drainage pipe is blocked due to the fact that the drainage pipe enters the concrete, and meanwhile the gradient of the drainage pipe is guaranteed.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The retaining wall system with the drainage filtering function comprises a retaining wall (1) and is characterized by comprising a drain pipe (2), a first prefabricated pervious concrete block (3), a reverse filtering layer (6), sandy soil (7), foundation backfill earthwork (9), a second prefabricated pervious concrete block (10), an inner template (13) and an outer template (14); wherein,
the soil retaining wall is characterized in that one side of a wall body of the soil retaining wall (1) is inclined, a first prefabricated pervious concrete block (3) is fixed by means of an inclined side slope of the soil retaining wall, a foundation backfill earth (9) is arranged at the bottom of the soil retaining wall (1), the first prefabricated pervious concrete block (3) is fixed with the side slope of the soil retaining wall (1), a connecting sleeve is arranged in the first prefabricated pervious concrete block (3), and the connecting sleeve is of a hollow structure with threads inside;
two ends of the drain pipe (2) are respectively inserted into the first precast permeable concrete block (3) and the second precast permeable concrete block (10) for fixation; the inner template (13) with outer template (14) set up in the inside and outside both sides of retaining wall (1), first prefabricated concrete block (3) of permeating water is hugged closely inner template (13) bolt fastening, inner template (13) outside with sandy soil (7) laminating, drain pipe (2) pass inner template (13) set up, reverse filter layer (6) bury in sandy soil (7) in, and with inner template (13) are fixed, have solved the problem that drain pipe mounting structure is unstable, reverse filter layer subsides along with the backfill in the work progress.
2. The retaining wall system with the drainage filtering function according to claim 1, wherein the first precast permeable concrete block (3) is of a wedge-shaped structure, the gradient of the wedge-shaped structure is set according to the gradient of the retaining wall (1), and the first precast permeable concrete block (3) is attached to the retaining wall (1).
3. A retaining wall system with drain filtering function according to claim 2, characterized by comprising an inner nut (4) and an inner bolt (5), wherein the inner bolt (5) passes through a template hole on an inner template (13), the template hole is rotationally fixed with the connecting sleeve, and the outer part of the inner template (13) is fixed with the inner bolt (5) through the inner nut (4).
4. A retaining wall system with drain filtering function according to claim 3, characterized in that the inner nut (4) is of circular grid-like stainless steel structure, the outer diameter of the inner nut (4) being larger than the diameter of the drain pipe (2); the inner bolts (5) are broken line type bolts, and the inner diameter of the drain pipe (2) is larger than that of the first precast permeable concrete block (3).
5. A retaining wall system with drainage filtering function according to any of the claims 1-4, characterized in that the inner formwork (13) is drilled with holes, which holes connect the drainage pipes (2).
6. A retaining wall system with drainage filtering function according to claim 3 or 4, characterized in that the back filtering layer (6) is a mini champagne gabion with crushed stone inside, the mini champagne gabion is wrapped with geotextile outside, a fixing sleeve is mounted inside the mini champagne gabion, and the fixing sleeve is fixed with the inner nut (4).
7. A retaining wall system with drainage filtering function according to any of the claims 1-4, characterized in that the drainage pipe (2) comprises an inner layer (15) and a middle layer (16) arranged from inside to outside, the inner layer (15) being of fine mesh structure, the inner layer (15) being fixedly connected with the first precast concrete segments (3); the middle layer (16) is sleeved outside the inner layer (15).
8. A retaining wall system with drainage filtering function according to claim 7, characterized in that the drainage pipe (2) comprises a support (19) and an outer layer (17), the middle layer (16) being fixed to the outer layer (17) inner wall through the support (19), the outer layer (17) being in contact with concrete.
9. A retaining wall system with drainage filtering function according to claim 8, characterized in that the middle layer (16) is slidingly connected to the inner layer (15), the middle layer (16) being extracted by means of an axial direction of the drainage pipe (2).
10. A construction method of a retaining wall system with a drainage filtering function, characterized in that the method is implemented by applying the retaining wall system with the drainage filtering function according to any one of claims 1 to 9, and comprises the following steps:
s100, excavating a retaining wall excavation line (8), pouring a foundation at the bottom of the retaining wall (1), and after the foundation at the bottom of the retaining wall (1) is hardened, backfilling earthwork by removing the foundation, so as to fix the retaining wall (1);
s200, installing an inner template (13) of the retaining wall (1), drilling a template hole on the inner template (13) at the position of a drain pipe (2), tightly attaching a first precast permeable concrete block (3) to the inner template (13), penetrating the template hole through an inner bolt (5) to be rotationally fixed with a connecting sleeve, and fixing the inner template (13) outside an outer template (13) by using an inner nut (4);
s300, penetrating a drain pipe (2) into a first prefabricated permeable concrete block (3);
s400, firstly standing up the retaining wall outer template (14) before splicing, drilling a hole in the center of the position corresponding to the drain pipe (2), tightly attaching the second prefabricated pervious concrete block 10 to the outer template (14), rotating and fixing the second prefabricated pervious concrete block by using an outer bolt (12) through a template hole and a connecting sleeve, and fixing the outer part of the outer template (14) by using an outer nut (11);
s500, fixing a second prefabricated pervious concrete block 10 on the retaining wall outer template (14) and inserting the second prefabricated pervious concrete block into the drain pipe (2) for fixing;
s600, carrying out subsequent fixed installation work on the templates, reinforcing and supporting, pouring concrete between the inner template (13) and the outer template (14), and dismantling the templates after the concrete strength meets the requirement of removing the templates;
s700, recycling part parts, and recycling the second precast permeable concrete blocks (10), the outer nuts (11) and the outer bolts (12) after the template is removed; the first precast permeable concrete block (3) and the inner nut (4) are reserved in the drain pipe (2) and are fixed at the wall body of the retaining wall (1) again by the inner bolt (5);
s800, backfilling and fixing the reverse filtering layer (6), backfilling the reverse filtering layer (6) by sandy soil in a layering way, compacting the reverse filtering layer (6) under the drain pipe (2), and inserting and fixing the reverse filtering layer (6) at a wall body through an inner bolt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311431605.1A CN117846019A (en) | 2023-10-31 | 2023-10-31 | Retaining wall system with drainage filtering function and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311431605.1A CN117846019A (en) | 2023-10-31 | 2023-10-31 | Retaining wall system with drainage filtering function and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117846019A true CN117846019A (en) | 2024-04-09 |
Family
ID=90543923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311431605.1A Pending CN117846019A (en) | 2023-10-31 | 2023-10-31 | Retaining wall system with drainage filtering function and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117846019A (en) |
-
2023
- 2023-10-31 CN CN202311431605.1A patent/CN117846019A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108612128B (en) | Open-cut single-layer double or multi-hole tunnel framing reverse support-changing construction method | |
| CN111560812A (en) | Sponge urban permeable road and construction process thereof | |
| CN212866028U (en) | River course limit sewage pipe network combines sheet-like barricade arrangement structure of stake | |
| CN111236284A (en) | Basement bottom and periphery underground water drainage method and structure | |
| CN112779914A (en) | Inclined strut structure and construction method for combined support in foundation pit | |
| CN115653000A (en) | Gravity pipe gallery in-situ protection structure system in foundation pit range and construction method | |
| CN109826065B (en) | High-fill roadbed protection system and construction method thereof | |
| CN114875936A (en) | Construction method for drainage and protection of high cut slope side ditch | |
| CN110820804A (en) | Half-covered-excavated building structure and method suitable for urban rail transit underground station | |
| CN113216213A (en) | Basement waterproof foundation pit structure and construction method | |
| CN110117959B (en) | Construction method for foundation pit support near river | |
| CN117846019A (en) | Retaining wall system with drainage filtering function and construction method | |
| CN215211056U (en) | Assembled multilayer inner supporting structure | |
| JP2004076451A (en) | Precast flexible box culvert and its construction method | |
| CN113308954B (en) | Construction method of anchor rod foam concrete widening roadbed | |
| CN112144425B (en) | Box culvert drainage ditch pouring method located at high water level and in sandy soil environment | |
| CN111794183B (en) | Method for reinforcing bottom of top river bed of shallow-buried underground excavation tunnel | |
| CN211815255U (en) | Rock mass abrupt slope road structure | |
| CN217923601U (en) | Baffle construction structures between stake | |
| JP3002188B1 (en) | Ground excavation method | |
| CN111794340B (en) | Drainage pipeline structure and construction method thereof | |
| CN115404888B (en) | Deep foundation pit bottom water treatment method for finished main body structure | |
| CN218880941U (en) | Closed open cut tunnel structure | |
| CN214657076U (en) | Prefabricated precipitation square pile and underground side wall steel plate superposed structure system | |
| CN218437106U (en) | Assembled ecological plate rib formula stock retaining wall structure convenient to dismantle |
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 |