CN114482134A - Construction method of damp-proof and impervious underground wall - Google Patents
Construction method of damp-proof and impervious underground wall Download PDFInfo
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- CN114482134A CN114482134A CN202111500989.9A CN202111500989A CN114482134A CN 114482134 A CN114482134 A CN 114482134A CN 202111500989 A CN202111500989 A CN 202111500989A CN 114482134 A CN114482134 A CN 114482134A
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 171
- 239000010959 steel Substances 0.000 claims abstract description 171
- 239000000463 material Substances 0.000 claims abstract description 52
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 37
- 239000004567 concrete Substances 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- -1 polyethylene Polymers 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 20
- 238000004078 waterproofing Methods 0.000 description 20
- 239000010410 layer Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000009434 installation Methods 0.000 description 6
- 230000003487 anti-permeability effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- 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
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- 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
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
Abstract
The application relates to a construction method of a damp-proof and impervious underground wall body, wherein the ground of an underground building is leveled and tamped, a plurality of groups of first channel steel are paved on the ground, one end of each group of first channel steel, which is close to the wall body, is integrally connected with a vertically arranged second channel steel, and the first channel steel is communicated with a notch of the second channel steel; inserting waterproof rolls into the notches of the first channel steel and the second channel steel; a plurality of groups of beams are arranged between the adjacent first channel steels, and each group of beams connects the two groups of first channel steels; pouring waterproof mortar into a gap between the waterproof coiled material and the wall surface until the waterproof mortar is reversed; troweling the waterproof mortar on the ground and the wall surface to form a troweling layer, and coating each group of beams and the second channel steel by the troweling layer; standing until the waterproof mortar on the ground and the wall surface is dehydrated and hardened; and (5) leveling high-grade concrete mortar on the ground and the wall surface. The application has promoted the intensity on near ground of underground wall body, has promoted underground wall body's dampproofing impervious performance.
Description
Technical Field
The application relates to the field of underground building construction, in particular to a construction method of a moistureproof and anti-permeability underground wall.
Background
An underground structure is a structure built in a rock or soil layer. The underground building is a product of the high-speed development of modern cities, plays a role in alleviating urban contradictions and improving living environment, and also develops a new living field for human beings. Underground buildings can be classified by function into military, civil, air-defense engineering, industrial, traffic and communication, warehouse, and underground utilities.
In the construction process of underground buildings, the construction of underground walls is an important link, the underground walls play a role in supporting the above-ground buildings, and therefore the structural strength requirement of the underground walls is high. Inside the underground building, because the underground water level height easily constantly risees along with the arrival of rainy season, the easy phenomenon of returning water that appears in the building inside at this time, the inside wall body of underground building easily because of the infiltration appears of returning water, makes the humidity resistance of wall body reduce.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: in the process of underground wall construction, the underground wall is subjected to seepage-proofing and seepage-proofing treatment, and in the process of construction, waterproof coiled materials of all layers are paved on the wall surface and the ground of the underground wall, or waterproof mortar which is uniformly stirred is sprayed on the wall surface and the ground; when the basement drives over a truck on the ground, the ground of the underground building is easy to be broken loudly, so that the underground waterproof coiled material or the waterproof mortar layer near the underground wall is broken, and the ground is easy to generate water return, so that the moisture-proof and anti-permeability performance of the underground wall is reduced, and an improved space exists.
Disclosure of Invention
In order to improve the moisture-proof and anti-permeability performance of an underground wall body and improve the strength of the ground near the underground wall body, the application provides a construction method of the moisture-proof and anti-permeability underground wall body.
The construction method for the moistureproof and impervious underground wall body adopts the following technical scheme:
a construction method of a damp-proof impervious underground wall body comprises the following steps:
the method comprises the following steps: after the main body of the underground wall is built, the wall is vertically built on the ground, and the construction of damp resistance and permeability resistance is carried out;
step two: leveling and tamping the ground of an underground building, paving and pasting a plurality of groups of first channel steel on the ground, wherein the extending direction of each group of first channel steel is vertical to the wall body, and notches between the first channel steel are oppositely arranged; one end of each group of first channel steel, which is close to the wall body, is integrally connected with a second channel steel which is vertically arranged, notches between the first channel steel are oppositely arranged, and the first channel steel is communicated with the notches of the second channel steel;
step three: inserting waterproof coiled materials into the notches of the first channel steel and the second channel steel, wherein the waterproof coiled materials are vertically inserted downwards from the notch of the upper end surface of the first channel steel, and the waterproof coiled materials are inserted into the notch of the second channel steel from the lower end part of the notch of the first channel steel; cutting the laid waterproof coiled material, wherein one end of the waterproof coiled material is flush with the upper end parts of the second channel steels of all groups, and the other end of the waterproof coiled material is flush with one end, far away from the wall body, of the first channel steels of all groups;
step four: a plurality of groups of beams are arranged between the adjacent first channel steels, and each group of beams connects the two groups of first channel steels;
step five: pouring waterproof mortar into a gap between the waterproof coiled material and the wall surface until the waterproof mortar is reversed;
step six: troweling the waterproof mortar on the ground and the wall surface to form a troweling layer, and coating each group of beams and the second channel steel by the troweling layer; before the waterproof mortar is dehydrated and hardened, roughening the ground and the wall surface, and standing until the waterproof mortar on the ground and the wall surface is dehydrated and hardened;
step seven: and (5) leveling high-grade concrete mortar on the ground and the wall surface.
By adopting the technical scheme, in the process of underground wall construction, in order to improve the bearing capacity of the ground near the wall, each group of first channel steel is laid on the ground, the vertically arranged second channel steel is erected at the position close to the wall, the first channel steel is fixedly connected with the second channel steel, in the process of installing the waterproof roll material, the waterproof roll material is vertically downwards inserted from the notch between the two groups of second channel steel, the waterproof roll material is gradually laid from the second channel steel to the inside of the first channel steel, at the moment, the waterproof roll material covers the wall surface and the ground, and when water returns to the ground, the water body seeped from the ground is difficult to penetrate through the waterproof roll material; in this application, lay the effect that first channel-section steel and each group's crossbeam play the frame subaerial, when driving over the load vehicle subaerial, the bearing capacity on this moment ground promotes, ground is difficult for taking place the damage, waterproofing membrane's both sides limit is inside along inserting the notch that inserts first channel-section steel and second channel-section steel, first channel-section steel plays the guard action to waterproofing membrane, the second channel-section steel plays the supporting role with waterproofing membrane, so above-mentioned technical scheme has promoted the intensity on near underground wall body's ground, the moisture-proof impervious performance of underground wall body has been promoted.
Preferably, a foundation pit is vertically and concavely arranged on the ground close to the wall body, square steel in a shape matched with the ground is inserted into the foundation pit, and the lower end part of each group of second channel steel is fixedly connected with the upper end face of the square steel.
Through adopting above-mentioned technical scheme, the foundation ditch is located subaerially, pegs graft the square steel inside the foundation ditch, and the up end fixed connection of the lower tip of each group's second channel-section steel and square steel, the setting up of square steel play the supporting role to two sets of second channel-section steels, makes each group's second channel-section steel reduce at subaerial settlement effect, and the setting up of square steel plays the compaction to corner position, makes the phenomenon of returning water on ground reduce.
Preferably, a plurality of groups of round holes are formed in the upper end face of the square steel in a penetrating mode, the round holes are filled with waterproof mortar poured between the waterproof coiled material and the wall face, and the foundation pit is filled with the waterproof mortar from the round holes.
Through adopting above-mentioned technical scheme, each group's ring runs through the square steel, with the waterproof sand the up end of square steel link up and has seted up a plurality of groups of round holes, and the waterproof mortar who fills between waterproofing membrane and the wall fills each group of round hole, and from each group of round hole to fill in the foundation ditch and fill, the waterproof mortar who fills constantly flows downwards along each group of round hole, and the waterproof mortar fills the space all around of foundation ditch this moment, makes the square steel promote at the inside stability of foundation ditch.
Preferably, a plurality of groups of jacks are concavely arranged on a horizontal wing plate at the upper end of each group of first channel steel, every two jacks on the two groups of first channel steel are arranged oppositely, and two ends of each group of beams are horizontally inserted into the jacks of each group.
Through adopting above-mentioned technical scheme, each group's jack is located the horizontal pterygoid lamina of first channel-section steel upper end, when carrying out the installation of each group's crossbeam, the cooperation of pegging graft of the horizontal both ends of crossbeam and the jack of each side this moment, and each group's first channel-section steel has realized the support to the crossbeam this moment, and each group's crossbeam installation is difficult for taking place after finishing and slides.
Preferably, the lower end surface of each group of the cross beams is higher than the upper end horizontal surface of the waterproof roll.
Through adopting above-mentioned technical scheme, the crossbeam installation finishes the back, and the lower terminal surface of crossbeam is higher than waterproofing membrane's upper end horizontal plane, and the crossbeam has been avoided in the aforesaid setting to cause the oppression to waterproofing membrane, and when the subaerial vehicle load of driving over was great, there is the trend of being buckled in the crossbeam this moment, in case the crossbeam receives the pressure bending, the crooked pressure reduction to waterproofing membrane of crossbeam this moment, and waterproofing membrane can be protected in certain limit.
Preferably, the width of the notches in the first channel steel and the second channel steel is matched with the thickness of the waterproof roll.
Through adopting above-mentioned technical scheme, when carrying out the installation of waterproofing membrane between first channel-section steel and second channel-section steel, waterproofing membrane's thickness and the width adaptation of notch, the waterproofing membrane installation comparatively stable after finishing this moment, waterproofing membrane is difficult for taking place to shift, has guaranteed the covering of waterproofing membrane to ground and wall.
Preferably, the width of the horizontal wing plate at the lower end part of the first channel steel is larger than that of the horizontal wing plate at the upper end part, and a plurality of groups of expansion bolts which are distributed at equal intervals are vertically inserted into the horizontal wing plate at the lower end part.
Through adopting above-mentioned technical scheme, first channel-section steel is laid subaerial, when carrying out the installation of first channel-section steel, the vertical pterygoid lamina that runs through of each group's expansion bolts this moment, and expansion bolts's setting is fixed subaerial with each first channel-section steel of group, lays subaerial for directly with first channel-section steel, and the aforesaid sets up and has realized that each first channel-section steel of group is subaerial fixed.
Preferably, the width of the vertical wing plate on one side, close to the wall, of the second channel steel is greater than the width of the vertical wing plate on one side, far away from the wall, and a plurality of groups of expansion bolts which are distributed at equal intervals are inserted into the vertical wing plate on one side, close to the wall.
Through adopting above-mentioned technical scheme, with the help of each expansion bolts of group, fix each group's second channel-section steel on the wall, make the second channel-section steel keep with the wall laminating, and second channel-section steel and wall body fixed connection also make the structural strength promotion of the one end that each group's first channel-section steel is close to the wall.
Preferably, the core of the waterproof coiled material is embedded with a steel wire layer, and two sides of the steel wire layer are polymer layers made of polyethylene polypropylene fiber.
By adopting the technical scheme, the steel wire layer is positioned at the core part of the waterproof coiled material, the structural strength of the waterproof coiled material is improved due to the arrangement of the steel wire layer, and when the local part of the ground is cracked and sunk due to compression, the local compression resistance of the waterproof coiled material is improved due to the steel wire layer, so that the service life of the waterproof coiled material is prolonged; the polymer layer of polyethylene polypropylene fibre material of both sides is comparatively compact, and waterproof performance is outstanding.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the first channel steel and the second channel steel are arranged, the waterproof coiled material is inserted into the notches of the first channel steel and the second channel steel, the first channel steel and the second channel steel play a role in fixing the waterproof coiled material, the cross beams are inserted and matched with the insertion holes in the first channel steel, the bearing capacity of the ground near the wall body is improved due to the arrangement of the cross beams, the ground near the wall body is not prone to damage, and the waterproof coiled material embedded under the ground is not prone to being broken due to compression;
2. a foundation pit is excavated on the ground close to the wall, square steel is inserted into the foundation pit, the lower end parts of the groups of second channel steel are connected with the square steel, and the square steel plays a role in supporting the groups of second channel steel; and (3) pouring the waterproof mortar from each group of round holes on the square steel, so that the stability of the square steel in the foundation pit is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
fig. 2 is an exploded schematic view of the first and second channels in each group of the present application;
fig. 3 is an enlarged view at a in fig. 2.
Description of reference numerals: 1. a ground surface; 11. a foundation pit; 12. square steel; 13. a circular hole; 2. a wall body; 21. coating a surface layer; 3. a first channel steel; 4. a second channel steel; 5. waterproof coiled materials; 6. a cross beam; 7. a jack; 8. an expansion bolt.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a construction method of a moistureproof and impervious underground wall. Referring to fig. 1, the ground 1 of the basement is horizontally arranged, the wall 2 which is vertically arranged is built on the ground 1, the requirement on the moisture-proof and anti-permeability performance of the wall 2 is high, when a load-carrying vehicle runs on the ground 1 of the basement, the ground 1 is easily pressed to be broken, so that the phenomenon of 'water return' of underground water below the ground 1 occurs, and the water body on the ground 1 further spreads along the vertical wall surface of the wall 2, so that the phenomenon of moisture return of the wall surface occurs.
Referring to fig. 2 and 3, in the present application, a method for constructing a moisture-proof and impervious underground wall includes the following steps:
the method comprises the following steps: after the main body of the underground wall body 2 is built, the wall body 2 is made of reinforced concrete; the wall body 2 is vertically built on the ground 1, and the construction of damp and seepage resistance is carried out;
step two: leveling and tamping the ground 1 of an underground building, paving and pasting a plurality of groups of first channel steel 3 on the ground 1, wherein the extending direction of each group of first channel steel 3 is vertical to the wall body 2, and notches between the first channel steel 3 are oppositely arranged; one end of each group of first channel steel 3 close to the wall body 2 is integrally connected with a second channel steel 4 which is vertically arranged, notches between the first channel steel 3 are oppositely arranged, and the first channel steel 3 is communicated with the notches of the second channel steel 4;
step three: the waterproof coiled material 5 is inserted into the notches of the first channel steel 3 and the second channel steel 4, the waterproof coiled material 5 is vertically inserted downwards from the notch of the upper end surface of the first channel steel 3, and the waterproof coiled material 5 is inserted into the notch of the second channel steel 4 from the lower end part of the notch of the first channel steel 3; cutting the laid waterproof coiled material 5, wherein one end of the waterproof coiled material 5 is flush with the upper end parts of the groups of second channel steel 4, and the other end of the waterproof coiled material 5 is flush with one end, far away from the wall body 2, of each group of first channel steel 3;
step four: a plurality of groups of beams 6 are arranged between the adjacent first channel steels 3, and each group of beams 6 connects the two groups of first channel steels 3;
step five: pouring waterproof mortar into a gap between the waterproof coiled material 5 and the wall surface until the waterproof mortar is reversed;
step six: the waterproof mortar is trowelled on the ground 1 and the wall surface to form a plastering layer 21, and each group of beams 6 and the second channel steel 4 are coated by the plastering layer 21; before the waterproof mortar is dehydrated and hardened, roughening the ground 1 and the wall surface, and standing until the waterproof mortar on the ground 1 and the wall surface is dehydrated and hardened;
step seven: and (3) leveling high-grade concrete mortar on the ground 1 and the wall surface, wherein the grade of the concrete is not lower than C80.
Referring to fig. 2 and 3, a foundation pit 11 is vertically and concavely arranged on the ground 1 near the wall 2, square steel 12 in shape fit is inserted into the foundation pit 11, and the lower end parts of the second channel steel 4 of each group are fixedly connected with the upper end surfaces of the square steel 12. A plurality of groups of round holes 13 are formed in the upper end face of the square steel 12 in a penetrating mode, waterproof mortar poured between the waterproof coiled material 5 and the wall face fills the round holes 13, and the foundation pit 11 is filled with the waterproof mortar from the round holes 13; the mortar further flows between the two groups of first channel steel 3, and the gap below the waterproof coiled material 5 is filled with the mortar.
A plurality of groups of jacks 7 are concavely arranged on the horizontal wing plate at the upper end of each group of first channel steel 3, and the depth of each jack 7 is smaller than the thickness of the horizontal wing plate; two jacks 7 on two groups of first channel steel 3 are arranged oppositely, two ends of each group of beams 6 are horizontally inserted into the jacks 7, and the upper end surface of each beam 6 is coplanar with the upper end surface of the water wing plate of the first channel steel 3. The lower end surface of each group of cross beams 6 is higher than the upper end horizontal surface of the waterproof roll 5. The width of the notches in the first channel steel 3 and the second channel steel 4 is matched with the thickness of the waterproof roll 5.
The width of the horizontal wing plate at the lower end part of the first channel steel 3 is larger than that of the horizontal wing plate at the upper end part, and a plurality of groups of expansion bolts 8 which are distributed at equal intervals are vertically inserted into the horizontal wing plate at the lower end part. The width that the second channel-section steel 4 is close to the vertical pterygoid lamina of wall one side is greater than the width of keeping away from the vertical pterygoid lamina of wall one side, pegs graft on the vertical pterygoid lamina of one side that is close to the wall and has a plurality of groups of expansion bolts 8 that equidistant distribution from top to bottom.
The core of the waterproof coiled material 5 is embedded with a steel wire layer, the width of the notches of the first channel steel 3 and the second channel steel 4 is preferably 0.5cm, and the thickness of the waterproof coiled material 5 is preferably 0.45 cm; the two sides of the steel wire layer are polymer layers made of polyethylene polypropylene fiber.
The implementation principle of the construction method of the moistureproof and impervious underground wall body in the embodiment of the application is as follows:
in the process of underground wall 2 construction, in order to improve the bearing capacity of the ground 1 near the wall 2, each group of first channel steel 3 is laid on the ground 1, a vertically arranged second channel steel 4 is erected at a position close to the wall 2, the first channel steel 3 is fixedly connected with the second channel steel 4, in the process of installing the waterproof roll material 5, the waterproof roll material 5 is vertically and downwards inserted from a notch between the two groups of second channel steel 4, the waterproof roll material 5 is gradually laid from the second channel steel 4 to the inside of the first channel steel 3, at the moment, the waterproof roll material 5 covers the wall surface and the ground 1, and when water returns from the ground 1, the water body seeped from the ground 1 cannot penetrate through the waterproof roll material 5; after crossbeam 6 installed, crossbeam 6's lower terminal surface is higher than waterproofing membrane 5's upper end horizontal plane, and above-mentioned setting has avoided crossbeam 6 to cause the oppression to waterproofing membrane 5, and when the vehicle load of driving over on ground 1 was great, crossbeam 6 had the trend of being buckled this moment, and in case crossbeam 6 is buckled by the pressure, the crooked pressure to waterproofing membrane 5 of crossbeam 6 reduced this moment, and waterproofing membrane 5 can be protected in certain limit.
In this application, lay the effect that first channel-section steel 3 and each group's crossbeam 6 on 1 ground played the frame, when driving over load vehicle on 1 ground, the bearing capacity on 1 ground promotes this moment, ground 1 is difficult for taking place the damage, the both sides limit of waterproofing membrane 5 is inside along what insert into first channel-section steel 3 and second channel-section steel 4 is the notch, first channel-section steel 3 plays the guard action to waterproofing membrane 5, second channel-section steel 4 plays the supporting role with waterproofing membrane 5, so above-mentioned technical scheme has promoted near 2 ground 1's intensity of underground wall body, the dampproofing impervious performance of underground wall body 2 has been promoted.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A construction method of a damp-proof impervious underground wall body is characterized by comprising the following steps:
the method comprises the following steps: after the main body of the underground wall body (2) is built, the wall body (2) is vertically built on the ground (1) and is subjected to damp-proof and impervious construction;
step two: leveling and tamping the ground (1) of an underground building, paving and sticking a plurality of groups of first channel steel (3) on the ground (1), wherein the extending direction of each group of first channel steel (3) is vertical to the wall body (2), and notches between the first channel steel (3) are oppositely arranged; one end of each group of first channel steel (3) close to the wall body (2) is integrally connected with a second channel steel (4) which is vertically arranged, notches between the first channel steel (3) are oppositely arranged, and the first channel steel (3) is communicated with the notches of the second channel steel (4);
step three: waterproof coiled materials (5) are inserted into the notches of the first channel steel (3) and the second channel steel (4), the waterproof coiled materials (5) are vertically inserted downwards from the notch of the upper end surface of the first channel steel (3), and the waterproof coiled materials (5) are inserted into the notch of the second channel steel (4) from the lower end part of the notch of the first channel steel (3); cutting the laid waterproof coiled material (5), wherein one end of the waterproof coiled material (5) is flush with the upper end parts of the second channel steel (4), and the other end of the waterproof coiled material (5) is flush with one end, far away from the wall body (2), of the first channel steel (3);
step four: a plurality of groups of cross beams (6) are arranged between the adjacent first channel steel (3), and each group of cross beams (6) connects two groups of first channel steel (3);
step five: pouring waterproof mortar into a gap between the waterproof coiled material (5) and the wall surface until the waterproof mortar is reversed;
step six: trowelling the waterproof mortar on the ground (1) and the wall surface to form a trowelling layer (21), and coating each group of beams (6) and the second channel steel (4) by the trowelling layer (21); before the waterproof mortar is dehydrated and hardened, roughening the ground (1) and the wall surface, and standing until the waterproof mortar on the ground (1) and the wall surface is dehydrated and hardened;
step seven: and (3) leveling the high-grade concrete mortar on the ground (1) and the wall surface.
2. The construction method of the moisture-proof and impervious underground wall body as claimed in claim 1, wherein: a foundation pit (11) is vertically and concavely arranged on the position, close to the wall body (2), of the ground (1), square steel (12) in a shape matched with the ground is inserted into the foundation pit (11), and the lower end portion of each group of second channel steel (4) is fixedly connected with the upper end face of the square steel (12).
3. The construction method of the moisture-proof and impervious underground wall body as claimed in claim 2, wherein: the upper end face of the square steel (12) is provided with a plurality of groups of round holes (13) in a penetrating mode, waterproof mortar poured between the waterproof coiled material (5) and the wall face fills the round holes (13) in each group, and the foundation pit (11) is filled with the waterproof mortar from the round holes (13) in each group.
4. The construction method of the moisture-proof and impervious underground wall body as claimed in claim 3, wherein: a plurality of groups of jacks (7) are concavely arranged on a horizontal wing plate at the upper end of each group of first channel steel (3), every two jacks (7) on the two groups of first channel steel (3) are arranged oppositely, and two ends of each group of beams (6) are horizontally inserted into each group of jacks (7).
5. The construction method of the moisture-proof and impervious underground wall body as claimed in claim 4, wherein: the lower end surface of each group of the cross beams (6) is higher than the upper end horizontal surface of the waterproof roll (5).
6. The construction method of the moisture-proof and impervious underground wall body as claimed in claim 5, wherein: the width of the notch on the first channel steel (3) and the second channel steel (4) is matched with the thickness of the waterproof coiled material (5).
7. The construction method of the moisture-proof and impervious underground wall body as claimed in claim 6, wherein: the width of the horizontal wing plate at the lower end part of the first channel steel (3) is larger than that of the horizontal wing plate at the upper end part, and a plurality of groups of expansion bolts (8) which are distributed at equal intervals are vertically inserted into the horizontal wing plate at the lower end part.
8. The construction method of a moisture-and impervious underground wall as claimed in claim 7, wherein: the width that the vertical pterygoid lamina of second channel-section steel (4) one side is close to the wall is greater than the width of keeping away from the vertical pterygoid lamina of wall one side, pegs graft on the vertical pterygoid lamina of one side that is close to the wall and has expansion bolts (8) that a plurality of groups equidistant distribution from top to bottom.
9. The construction method of a moisture-and impervious underground wall as claimed in claim 7, wherein: the core part of the waterproof coiled material (5) is embedded with a steel wire layer, and two sides of the steel wire layer are polymer layers made of polyethylene polypropylene fiber.
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| CN114482134B (en) | 2023-11-10 |
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