CN114809075A - Comprehensive waterproof construction method for underground prefabricated pipe gallery - Google Patents
Comprehensive waterproof construction method for underground prefabricated pipe gallery Download PDFInfo
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- CN114809075A CN114809075A CN202210478898.8A CN202210478898A CN114809075A CN 114809075 A CN114809075 A CN 114809075A CN 202210478898 A CN202210478898 A CN 202210478898A CN 114809075 A CN114809075 A CN 114809075A
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- prefabricated pipe
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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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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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
- 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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Abstract
The invention discloses a comprehensive waterproof construction method for an underground prefabricated pipe gallery, which comprises the following steps: manufacturing a base layer, pouring a concrete base layer, and paving a waterproof coiled material on the concrete base layer; installing a prefabricated pipe gallery, arranging a water stop rubber ring at the joint of the prefabricated pipe gallery, simultaneously tensioning two prestressed tendons at the bottom of the prefabricated pipe gallery and then tensioning two prestressed tendons at the top of the prefabricated pipe gallery during tensioning; waterproof construction, after the prefabricated pipe gallery is installed, cleaning the side wall and the top of the prefabricated pipe gallery to serve as a construction base layer of a waterproof coiled material, coating a treating agent on the construction base layer to enhance the sticking performance of the waterproof coiled material, and then sticking the waterproof coiled material on the side wall and the top of the prefabricated pipe gallery; and (5) constructing a protective layer, building waterproof brick walls on the left side and the right side of the prefabricated pipe gallery wrapped with the waterproof coiled materials, and pouring a waterproof concrete layer at the upper end of the prefabricated pipe gallery.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a comprehensive waterproof construction method for an underground prefabricated pipe gallery.
Background
In recent years, with the continuous and high-speed increase of economy, urban population is rapidly increased, the urbanization level is continuously improved, the accompanying traffic jam and the environmental deterioration are increasingly prominent, with the rapid development of urban networked municipal pipe network systems and the increasingly deep of smart city concepts, underground comprehensive pipe racks and power pipe rack projects are gradually accepted and popularized as new modes for effectively solving the contradiction of urban infrastructure construction, and the underground pipe rack construction market is increasingly expanded.
And traditional piping lane construction technology seepage water phenomenon is general, seriously influences underground pipe gallery engineering use quality, and present underground pipe gallery engineering has general seepage phenomenon, and daily expense consume such as drawing water, secondary repair is very big.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the comprehensive waterproof construction method for the underground prefabricated pipe gallery, which can avoid water seepage of the underground prefabricated pipe gallery, improve the engineering quality and avoid the capital consumption of later maintenance.
According to the embodiment of the first aspect of the invention, the comprehensive waterproof construction method for the underground prefabricated pipe gallery comprises the following steps:
manufacturing a base layer, pouring a concrete base layer for laying the prefabricated pipe gallery, laying a waterproof coiled material on the concrete base layer, and laying a fine stone concrete layer with the thickness of 50mm on the waterproof coiled material;
installing a prefabricated pipe gallery, preparing a plurality of prefabricated pipe galleries, cleaning contact surfaces of joints of the prefabricated pipe galleries, arranging a water-stop rubber ring at the joints of the prefabricated pipe galleries, reserving tensioning holes at four vertex angles of the prefabricated pipe galleries, extending the tensioning holes along the length direction of the prefabricated pipe galleries, arranging operation ports at four internal corners of an inner cavity of each prefabricated pipe gallery, arranging the operation ports and the tensioning holes in a one-to-one correspondence manner, enabling the axes of the tensioning holes to pass through the operation ports, enabling the tensioning holes to be used for penetrating prestressed tendons, adopting a manner that three-section prefabricated pipe galleries are tensioned into one section, arranging plugs in the operation ports of a first-section prefabricated pipe gallery, connecting the prestressed tendons with the plugs, enabling the prestressed tendons to penetrate through the first-section prefabricated pipe gallery until the prestressed tendons penetrate out from a third-section prefabricated pipe gallery, connecting tensioning equipment with the parts where the prestressed tendons penetrate out, and simultaneously performing two prestressed tendons at the bottom of the prefabricated pipe gallery when tensioning, tensioning two prestressed tendons at the top of the prefabricated pipe gallery;
waterproof construction, after the prefabricated pipe gallery is installed, cleaning the side wall and the top of the prefabricated pipe gallery to serve as a construction base layer of a waterproof coiled material, coating a treating agent on the construction base layer to enhance the sticking performance of the waterproof coiled material, and then sticking the waterproof coiled material on the side wall and the top of the prefabricated pipe gallery;
and (5) constructing a protective layer, building waterproof brick walls on the left side and the right side of the prefabricated pipe gallery wrapped with the waterproof coiled materials, and pouring a waterproof concrete layer at the upper end of the prefabricated pipe gallery.
The comprehensive waterproof construction method for the underground prefabricated pipe gallery provided by the embodiment of the invention at least has the following beneficial effects: through prefabricated piping lane reserves stretch-draw hole, prefabricated piping lane when the installation, adjacent two prefabricated piping lane's seam crossing sets up the stagnant water rubber circle, prefabricated piping lane installation is in place back stretch-draw and is formed wholly, stagnant water rubber circle is extruded two prefabricated piping lane's seam crossing makes two prefabricated piping lane's seam crossing's waterproof performance obtains promoting, sets up in addition waterproofing membrane will prefabricated piping lane cladding can avoid groundwater from prefabricated piping lane outside to permeate inwards, lay the fine stone concrete layer is for avoiding prefabricated piping lane destroys at the installation the waterproofing membrane's integrality, when prefabricated piping lane, follow the principle of stretch-draw bilateral symmetry stretch-draw, make adjacent two prefabricated piping lane can laminate more tightly, the three section prefabricated piping lane stretch-draw is for convenience, if prefabricated piping lane's quantity is too much, the big stretch-draw difficulty of load, and be difficult to take-up, waterproofing is in order to incite somebody to action prefabricated piping lane cladding is last waterproofing membrane makes wholly prefabricated piping lane all has water-proof effects, the cooperation with the water proof brick wall with waterproof concrete layer, further reinforcing prefabricated piping lane's water-proof effects, generally speaking has avoided prefabricated piping lane infiltration, can also improve the engineering quality, removes the fund consumption of later maintenance from.
According to some embodiments of the invention, in the step of manufacturing the base layer, at least 500mm of overlapping amount is reserved on the left side and the right side of the prefabricated pipe gallery respectively when the waterproof rolls are laid, so as to connect the waterproof roll at the bottom of the prefabricated pipe gallery and the waterproof roll at the side wall of the prefabricated pipe gallery into a whole after the prefabricated pipe gallery is installed, thickening the waterproof roll at the bottom of the prefabricated pipe gallery is performed at the corner of the external corner of the prefabricated pipe gallery, so that the waterproof rolls at the two sides of the bottom of the prefabricated pipe gallery are prevented from being broken or cracked when being bent, the set overlapping amount is used for connecting the waterproof roll at the bottom of the prefabricated pipe gallery and the waterproof roll at the side wall of the prefabricated pipe gallery into a whole after the prefabricated pipe gallery is installed, and the overlapping amount of the waterproof rolls can be staggered.
According to some embodiments of the invention, in the step of installing the prefabricated pipe gallery, one end of the prefabricated pipe gallery is provided with an inserting convex part, the other end of the prefabricated pipe gallery is provided with an inserting concave part, the water-stop rubber ring is arranged at the inserting convex part or the inserting concave part, the adjacent prefabricated pipe gallery is inserted into the inserting concave part through the inserting convex part and extrudes the water-stop rubber ring, so that the water-stop rubber ring seals the joint of the two adjacent prefabricated pipe galls, the groundwater leakage is prevented, the structure is simple, the connecting mode of the inserting concave part and the inserting convex part is more convenient, and the inserting concave part and the inserting convex part have a guiding function mutually.
According to some embodiments of the present invention, in the waterproof construction step, the finishing agent is uniformly applied, and after the finishing agent is applied, the waterproof roll is attached by a hot-melt method after being dried for more than eight hours, so as to avoid fire.
According to some embodiments of the invention, after the treating agent is dried, waterproof coiled materials with the width of 500mm are paved at the corners of the internal corner and the external corner of the prefabricated pipe gallery and the joint of the adjacent prefabricated pipe gallery, and because the corners of the internal corner and the external corner of the prefabricated pipe gallery are easy to seep water, the waterproof coiled materials are paved at the corners of the internal corner and the external corner of the prefabricated pipe gallery, so that the waterproof performance of the prefabricated pipe gallery can be enhanced, and the structural strength of the prefabricated pipe gallery can also be enhanced.
According to some embodiments of the invention, the waterproof coiled material on the top or the side wall of the prefabricated pipe gallery is paved, and when the waterproof coiled material is paved, the long-side overlapping width of the waterproof coiled material is not less than 100mm, the short-side overlapping width of the waterproof coiled material is not less than 150mm, and the joints of two adjacent waterproof coiled materials are staggered by 500 mm.
According to some embodiments of the invention, in the step of constructing the protective layer, bricks of the waterproof brick wall are connected by waterproof mortar, after the building is completed, the wall surface of the waterproof brick wall is coated by the waterproof mortar, the coating thickness is greater than or equal to 30mm, the thickness of the waterproof brick wall is greater than or equal to 120mm, the waterproof brick wall can further play a waterproof role, and triple waterproof can be achieved by combining the waterproof performance of the waterproof roll material and the waterproof performance of the prefabricated pipe gallery.
According to some embodiments of the invention, after the waterproof coiled material is laid, earthwork backfilling is carried out on two sides of the prefabricated pipe gallery at the same time, and the backfilling is carried out in a layered mode and tamped, so that the same pressure of the soil on two sides of the prefabricated pipe gallery is ensured, and the prefabricated pipe gallery is prevented from being fractured by the earthwork.
According to some embodiments of the invention, when the joint between two adjacent prefabricated pipe galleries leaks, the joint is sealed by using a quick-setting waterproof leaking stoppage material.
According to some embodiments of the invention, in the step of manufacturing the base layer, the concrete base layer is poured by C15 concrete and has a thickness of 100mm, a cement mortar leveling layer with a thickness of 20mm is arranged on the concrete base layer, the waterproof roll is laid on the cement mortar leveling layer, and the cement mortar leveling layer is arranged to enable the waterproof roll to be tiled, so that the waterproof roll is prevented from being inclined, folded and broken, and the waterproof performance is prevented from being affected.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a sectional view of a prefabricated pipe gallery according to an embodiment of the present invention from a front view angle after construction;
FIG. 2 is an exploded view of a waterproof roll for a prefabricated pipe gallery according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a waterproof roll for a prefabricated pipe gallery according to an embodiment of the present invention;
FIG. 4 is a first schematic structural diagram of a prefabricated pipe gallery according to an embodiment of the present invention;
FIG. 5 is a second schematic structural diagram of a prefabricated pipe gallery according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of splicing of two prefabricated pipe galleries according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a plurality of prefabricated pipe galleries spliced according to an embodiment of the present invention;
fig. 8 is a perspective view cross-sectional view of a plurality of pre-fabricated tube lane splices in accordance with an embodiment of the present invention.
A concrete base layer 100, a waterproof coiled material 110, a fine stone concrete layer 120 and a cement mortar leveling layer 130;
the method comprises the following steps of prefabricating a pipe gallery 200, a water-stop rubber ring 210, a tensioning hole 220, an operation opening 230, prestressed ribs 240, a plug 250, a plug convex part 260 and a plug concave part 270;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 8, the comprehensive waterproof construction method for the underground prefabricated pipe gallery comprises the following steps:
manufacturing a base layer, pouring a concrete base layer 100 for laying the prefabricated pipe gallery 200, laying a waterproof coiled material 110 on the concrete base layer 100, and laying a fine stone concrete layer 120 with the thickness of 50mm on the waterproof coiled material 110;
installing a prefabricated pipe gallery, preparing a plurality of prefabricated pipe galleries 200, cleaning contact surfaces of joints of the prefabricated pipe galleries 200, arranging water-stop rubber rings 210 at the joints of the prefabricated pipe galleries 200, reserving tensioning holes 220 at four vertex angles of the prefabricated pipe galleries 200, extending the tensioning holes 220 along the length direction of the prefabricated pipe galleries 200, arranging operation ports 230 at four internal corners of an inner cavity of each prefabricated pipe gallery 200, arranging the operation ports 230 and the tensioning holes 220 in a one-to-one correspondence manner, enabling the axes of the tensioning holes 220 to pass through the operation ports 230, enabling the tensioning holes 220 to be used for penetrating through prestressed ribs 240, adopting a mode that three prefabricated pipe galleries 200 are taken as one section, arranging plugs 250 in the operation ports 230 of a first-section prefabricated pipe gallery 200, connecting the prestressed ribs 240 with the plugs 250, enabling the prestressed ribs 240 to penetrate through the first-section of the prefabricated pipe gallery 200 until the prestressed ribs penetrate out of a third-section of the prefabricated pipe gallery 200, and connecting tensioning equipment with the parts of the prestressed ribs 240, during tensioning, simultaneously tensioning the two prestressed tendons 240 at the bottom of the prefabricated pipe gallery 200, and then tensioning the two prestressed tendons 240 at the top of the prefabricated pipe gallery 200;
waterproof construction, after the prefabricated pipe gallery is installed, cleaning the side wall and the top of the prefabricated pipe gallery 200 to serve as a construction base layer of the waterproof roll 110, coating a treating agent on the construction base layer to enhance the adhesive property of the waterproof roll 110, and then adhering the waterproof roll 110 to the side wall and the top of the prefabricated pipe gallery 200;
and (3) constructing a protective layer, namely building waterproof brick walls 300 on the left side and the right side of the prefabricated pipe gallery 200 wrapped with the waterproof coiled materials 110, and pouring a waterproof concrete layer 400 at the upper end of the prefabricated pipe gallery 200.
Through reserving tensioning holes 220 in the prefabricated pipe gallery 200, when the prefabricated pipe gallery 200 is installed, the joint of two adjacent prefabricated pipe galleries 200 is provided with a water stop rubber ring 210, the prefabricated pipe gallery 200 is installed in place and then tensioned to form a whole, the water stop rubber ring 210 is extruded at the joint of the two prefabricated pipe galleries 200, so that the waterproof performance of the joint of the two prefabricated pipe galleries 200 is improved, in addition, the prefabricated pipe gallery 200 is coated by the arranged waterproof coiled material 110, the underground water can be prevented from permeating from the outside of the prefabricated pipe gallery 200 inwards, the laid fine stone concrete layer 120 is used for preventing the prefabricated pipe gallery 200 from damaging the integrity of the waterproof coiled material 110 in the installation process, when the prefabricated pipe gallery 200 is tensioned, the tensioning principle of bilateral symmetry is followed, so that the two adjacent prefabricated pipe galleries 200 can be jointed more tightly, the three-section prefabricated pipe gallery 200 is tensioned conveniently, if the number of the prefabricated pipe galleries 200 is too many, the big stretch-draw difficulty of load, and be difficult to take-up, waterproofing is in order to go up waterproofing membrane 110 with prefabricated piping lane 200 cladding for whole prefabricated piping lane 200 all has water-proof effects, and the cooperation is with waterproof brick wall 300 and waterproof concrete layer 400, further strengthens prefabricated piping lane 200's water-proof effects, and in general, avoided prefabricated piping lane infiltration of underground, can also improve the engineering quality, remove the fund consumption of later maintenance from.
In some embodiments, in the step of manufacturing the base layer, when the waterproof roll material 110 is laid, at least 500mm of overlapping amount is reserved on the left side and the right side of the prefabricated pipe gallery 200, so as to connect the waterproof roll material 110 at the bottom of the prefabricated pipe gallery 200 and the waterproof roll material 110 at the side wall of the prefabricated pipe gallery 200 into a whole after the prefabricated pipe gallery 200 is installed, thicken the waterproof roll material 110 at the bottom of the prefabricated pipe gallery 200 at the corner of the external corner of the prefabricated pipe gallery 200, prevent the waterproof roll material 110 at the two sides of the bottom of the prefabricated pipe gallery 200 from being broken or cracked when being bent, and the set overlapping amount is used for connecting the waterproof roll material 110 at the bottom of the prefabricated pipe gallery 200 and the waterproof roll material 110 at the side wall of the prefabricated pipe gallery 200 into a whole after the prefabricated pipe gallery 200 is installed, and the overlapping amount of the waterproof roll material 110 can be staggered. It is understood that the so-called overlap amount, i.e., the maximum length of the joint portion of the adjacent two waterproof rolls 110, is used for overlapping.
In some embodiments, in the step of installing the prefabricated pipe gallery, one end of the prefabricated pipe gallery 200 is provided with the insertion convex part 260, the other end is provided with the insertion concave part 270, the water-stop rubber ring 210 is arranged at the insertion convex part 260 or the insertion concave part 270, the adjacent prefabricated pipe gallery 200 is inserted into the insertion concave part 270 through the insertion convex part 260 and extrudes the water-stop rubber ring 210, so that the water-stop rubber ring 210 seals the joint of the two adjacent prefabricated pipe galleries 200, the underground water leakage is prevented, the structure is simple, the connection mode of the insertion concave part 270 and the insertion convex part 260 is more convenient, and the insertion concave part 270 and the insertion convex part 260 have a guiding effect mutually.
In some embodiments, the finishing agent is uniformly applied in the waterproof step, and after the finishing agent is applied, the waterproof roll 110 is adhered by hot melting after drying for more than eight hours, so as to avoid fire.
In some embodiments, after the treatment agent is dried, the waterproofing membrane 110 having a width of 500mm is spread at the corners of the inside and outside corners of the prefabricated pipe gallery 200 and the joints between the adjacent prefabricated pipe galleries 200, and since the water is easily permeated at the corners of the inside and outside corners of the prefabricated pipe gallery 200, the waterproofing membrane 110 is spread at the corners of the inside and outside corners of the prefabricated pipe gallery 200 in addition, which can enhance both the waterproofing performance of the prefabricated pipe gallery 200 and the structural strength of the prefabricated pipe gallery 200.
In some embodiments, the waterproof rolls 110 on the top or the side wall of the prefabricated pipe gallery 200 have a lap width of not less than 100mm for the long side of the waterproof roll 110, a lap width of not less than 150mm for the short side of the waterproof roll 110, and a joint of two adjacent waterproof rolls 110 is staggered by 500 mm. It is understood that the long side, i.e., the side in the front-rear direction, and the short side, i.e., the side with respect to the long side, may be a side in the up-down direction or a side in the left-right direction.
In some embodiments, in the step of constructing the protective layer, the bricks of the waterproof brick wall 300 are connected by using waterproof mortar, after the building is completed, the wall surface of the waterproof brick wall 300 is coated by using waterproof mortar, the coating thickness is greater than or equal to 30mm, the thickness of the waterproof brick wall 300 is greater than or equal to 120mm, the waterproof brick wall 300 can further play a waterproof role, and triple waterproof can be achieved by combining the waterproof performance of the waterproof roll material 110 and the waterproof performance of the prefabricated pipe gallery 200.
In some embodiments, after the waterproof roll 110 is laid, earth backfilling is performed on both sides of the prefabricated pipe gallery 200 at the same time, and the prefabricated pipe gallery 200 is backfilled and tamped layer by layer during backfilling, so that the same pressure of the earth on both sides of the prefabricated pipe gallery 200 is ensured, and the prefabricated pipe gallery 200 is prevented from being fractured by the earth.
In some embodiments, when the joint between two adjacent prefabricated pipe galleries 200 leaks, a quick-setting waterproof leaking stoppage material is used for plugging, and it is understood that the quick-setting waterproof leaking stoppage material is a commonly used leak-proof material in engineering.
In some embodiments, in the step of manufacturing the base layer, the concrete base layer 100 is poured by C15 concrete, the thickness of the concrete base layer is 100mm, a cement mortar leveling layer 130 with the thickness of 20mm is arranged on the concrete base layer 100, the waterproof rolls 110 are laid on the cement mortar leveling layer 130, the arranged cement mortar leveling layer 130 enables the waterproof rolls 110 to be tiled, the waterproof performance is prevented from being affected due to the fact that the waterproof rolls 110 are inclined, folded and broken, and it can be understood that C15 is the type of concrete and is a common type in engineering.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. The comprehensive waterproof construction method for the underground prefabricated pipe gallery is characterized by comprising the following steps:
manufacturing a base layer, pouring a concrete base layer for laying the prefabricated pipe gallery, laying a waterproof coiled material on the concrete base layer, and laying a fine stone concrete layer with the thickness of 50mm on the waterproof coiled material;
installing a prefabricated pipe gallery, preparing a plurality of prefabricated pipe galleries, cleaning contact surfaces of joints of the prefabricated pipe galleries, arranging a water-stop rubber ring at the joints of the prefabricated pipe galleries, reserving tensioning holes at four vertex angles of the prefabricated pipe galleries, extending the tensioning holes along the length direction of the prefabricated pipe galleries, arranging operation ports at four internal corners of an inner cavity of each prefabricated pipe gallery, arranging the operation ports and the tensioning holes in a one-to-one correspondence manner, enabling the axes of the tensioning holes to pass through the operation ports, enabling the tensioning holes to be used for penetrating prestressed tendons, adopting a manner that three-section prefabricated pipe galleries are tensioned into one section, arranging plugs in the operation ports of a first-section prefabricated pipe gallery, connecting the prestressed tendons with the plugs, enabling the prestressed tendons to penetrate through the first-section prefabricated pipe gallery until the prestressed tendons penetrate out from a third-section prefabricated pipe gallery, connecting tensioning equipment with the parts where the prestressed tendons penetrate out, and simultaneously performing two prestressed tendons at the bottom of the prefabricated pipe gallery when tensioning, tensioning two prestressed tendons at the top of the prefabricated pipe gallery;
waterproof construction, after the prefabricated pipe gallery is installed, cleaning the side wall and the top of the prefabricated pipe gallery to serve as a construction base layer of a waterproof coiled material, coating a treating agent on the construction base layer to enhance the sticking performance of the waterproof coiled material, and then sticking the waterproof coiled material on the side wall and the top of the prefabricated pipe gallery;
and (5) constructing a protective layer, building waterproof brick walls on the left side and the right side of the prefabricated pipe gallery wrapped with the waterproof coiled materials, and pouring a waterproof concrete layer at the upper end of the prefabricated pipe gallery.
2. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 1, characterized in that: in the preparation basic unit step, waterproofing membrane is when laying, will be in prefabricated piping lane left and right sides reserves 500 mm's at least overlap joint volume respectively to be used for after prefabricated piping lane installation, connect waterproofing membrane and prefabricated piping lane lateral wall waterproofing membrane of prefabricated piping lane bottom and become a whole, the waterproofing membrane of prefabricated piping lane bottom thickens at prefabricated piping lane external corner department, prevents that prefabricated piping lane bottom both sides waterproofing membrane from breaking or splitting when the bending.
3. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 1, characterized in that: in the step of prefabricated piping lane of installation, the one end of prefabricated piping lane is provided with the grafting convex part, and the other end is provided with the grafting concave part, and the stagnant water rubber circle sets up at grafting convex part or grafting concave part, and adjacent prefabricated piping lane inserts the grafting concave part and extrudees the stagnant water rubber circle through the grafting convex part, makes the stagnant water rubber circle sealed with the seam crossing of two adjacent prefabricated piping lanes, prevents the groundwater seepage.
4. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 1, characterized in that: in the waterproof construction step, the finishing agent is uniformly coated, and after the finishing agent is coated, the waterproof coiled material is adhered by a hot melting method after being dried for more than eight hours, so as to avoid fire.
5. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 4, characterized in that: and after the treating agent is dried, paving waterproof rolls with the width of 500mm at the corners of the internal corner and the external corner of the prefabricated pipe gallery and the joints of the adjacent prefabricated pipe galleries.
6. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 5, characterized in that: waterproofing membrane on prefabricated piping lane's top or the lateral wall, when paving and pasting, waterproofing membrane's long limit overlap joint width is not less than 100mm, and waterproofing membrane's minor face overlap joint width is not less than 150mm, and two adjacent waterproofing membrane's joint staggers 500 mm.
7. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 1, characterized in that: in the step of constructing the protective layer, bricks of the waterproof brick wall are connected by waterproof mortar, after the construction is finished, the wall surface of the waterproof brick wall is coated by the waterproof mortar, the coating thickness is greater than or equal to 30mm, and the thickness of the waterproof brick wall is greater than or equal to 120 mm.
8. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 1, characterized in that: after waterproofing membrane laid and accomplished, prefabricated piping lane both sides carried out the earthwork simultaneously and backfilled, will backfill in layers and tamp during the backfill, guarantee that the pressure of prefabricated piping lane both sides soil is the same.
9. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 1, characterized in that: when the junction between two adjacent prefabricated piping lane seepage, adopt the waterproof leaking stoppage material of rapid hardening type to carry out the shutoff.
10. The underground prefabricated pipe gallery comprehensive waterproof construction method according to claim 1, characterized in that: in the step of the manufacturing base layer, the concrete base layer is poured by C15 concrete, the thickness is 100mm, a cement mortar leveling layer with the thickness of 20mm is arranged on the concrete base layer, and the waterproof coiled material is paved on the cement mortar leveling layer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637737A (en) * | 2022-12-26 | 2023-01-24 | 中国建筑第六工程局有限公司 | Assembled pipe gallery pipe joint structure and waterproof method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149709A (en) * | 2017-12-28 | 2018-06-12 | 中铁十局集团第五工程有限公司 | Underground pipe gallery precast assembly construction method |
| CN108411939A (en) * | 2018-03-16 | 2018-08-17 | 通号建设集团有限公司 | The spliced prefabricated pipe gallery of one kind and its construction method |
| CN109183844A (en) * | 2018-10-31 | 2019-01-11 | 中国冶集团有限公司 | A kind of construction method of piping lane bottom plate pre-installed and inverted adhered type TPO waterproof roll |
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2022
- 2022-04-29 CN CN202210478898.8A patent/CN114809075A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149709A (en) * | 2017-12-28 | 2018-06-12 | 中铁十局集团第五工程有限公司 | Underground pipe gallery precast assembly construction method |
| CN108411939A (en) * | 2018-03-16 | 2018-08-17 | 通号建设集团有限公司 | The spliced prefabricated pipe gallery of one kind and its construction method |
| CN109183844A (en) * | 2018-10-31 | 2019-01-11 | 中国冶集团有限公司 | A kind of construction method of piping lane bottom plate pre-installed and inverted adhered type TPO waterproof roll |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637737A (en) * | 2022-12-26 | 2023-01-24 | 中国建筑第六工程局有限公司 | Assembled pipe gallery pipe joint structure and waterproof method |
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