CN214993759U - Uplift pile head node waterproof structure serving as temporary stand column - Google Patents
Uplift pile head node waterproof structure serving as temporary stand column Download PDFInfo
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- CN214993759U CN214993759U CN202121115757.7U CN202121115757U CN214993759U CN 214993759 U CN214993759 U CN 214993759U CN 202121115757 U CN202121115757 U CN 202121115757U CN 214993759 U CN214993759 U CN 214993759U
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Abstract
The utility model discloses an uplift pile head node waterproof construction who does interim stand concurrently relates to underground works technical field such as housing construction, rail transit, municipal works. The anti-pulling pile is also used as a temporary stand column, a rectangular post-cast hole is formed in the position of the anti-pulling pile on a structural bottom plate, a rectangular groove is formed in the position of the structural bottom plate at the position of the rectangular post-cast hole, a first circumferential water-swelling water stop strip is buried in the middle of the rectangular groove, and a circumferential L-shaped grouting pipe is buried in the position of the lower portion of the rectangular groove. The utility model discloses can solve the anti-floating pile head node waterproof difficult problem who does interim stand concurrently, the water-cut is effectual during the construction, and water-proof effects is good during the use, and durability can be strong. The reinforced concrete cushion layer and the grouting pipes embedded below the cushion layer can ensure that the waterproof joint has good water intercepting effect during construction, the tongue-and-groove water-stop glue and the tongue-and-groove annular L-shaped grouting pipes can ensure that the waterproof joint has good waterproof effect during use, and the waterproof joint is provided with a plurality of water intercepting and waterproof systems.
Description
Technical Field
The utility model discloses an underground works technical field such as housing construction, rail transit, municipal works especially relate to an uplift pile head node waterproof construction who is interim stand concurrently.
Background
It is very common to set up anti-floating pile in the underground structure work progress, and anti-floating pile head is the waterproof key position of underground structure. At present, a pile head waterproof structure of an uplift pile mainly comprises a concrete cushion layer, a bottom plate waterproof layer, a fine stone concrete protective layer, a cement-based permeable crystallization type waterproof coating, polymer cement waterproof mortar, a sealing material, a water-swelling waterproof glue and the like, and the periphery of the uplift pile and the upper bottom plate are formed in a one-step pouring mode.
Uplift pile is mostly the drilling bored concrete pile, upwards pour into when permanent roof or interim apron position as uplift pile alright do simultaneously and cover the interim stand in the method of digging, vertical load is undertaken to this stake during underground structure construction, structural framework can not break out before not sealing, so this stake periphery need reserve the hole and later stage is pour, this moment both need solve during the construction reserve the hole and cut water problem, the waterproof problem of post-cast node during the use of solving again, traditional uplift pile head waterproof node has not been applicable.
SUMMERY OF THE UTILITY MODEL
For overcoming the problem that exists among the correlation technique, the utility model discloses an embodiment provides an uplift pile head node waterproof construction who does interim stand concurrently to the solution is reserved the hole during the uplift pile construction of interim stand concurrently and is cut water, the waterproof scheduling problem of post-cast node during the use. The technical scheme is as follows:
this uplift pile head node waterproof construction who does interim stand concurrently is provided with: the anti-pulling pile is also used as a temporary stand column, a rectangular post-cast hole is formed in the position of the anti-pulling pile on a structural bottom plate, a rectangular rabbet is formed in the position of the structural bottom plate at the position of the rectangular post-cast hole, a first circumferential water-swelling water stop strip is embedded in the middle of the rectangular rabbet, and a circumferential L-shaped grouting pipe is embedded in the lower position of the rectangular rabbet;
the periphery of a main rib at the position of a pile head is coated with a water swelling and stopping adhesive, the pile head and the pile side are coated with a permeable modified epoxy waterproof coating, the permeable modified epoxy waterproof coating at the pile side is coated downwards to the top of a cushion layer and is bent and extended towards the outside of the pile side, and polymer cement leveling mortar and a single-component polyurethane sealant are arranged outside the vertical bending part of the permeable modified epoxy waterproof coating at the pile side.
In one embodiment, the upper part of the horizontal extending part of the permeable modified epoxy waterproof coating is provided with a flexible waterproof reinforcing layer, and the lower part of the horizontal extending part of the permeable modified epoxy waterproof coating is provided with a flexible waterproof layer.
In one embodiment, a fine aggregate concrete protective layer is arranged on the upper portion of the flexible waterproof reinforcing layer, a structural bottom plate is arranged on the upper portion of the fine aggregate concrete protective layer, a fine aggregate concrete protective layer and a plain concrete cushion layer are arranged on the lower portion of the flexible waterproof layer, and a natural soil body at the bottom of the foundation pit is arranged on the outer side of the lower portion of the plain concrete cushion layer.
In one embodiment, a circumferential cushion layer vertical grouting pipe is buried in soil around the uplift pile, and pre-grouting reinforcement soil is arranged at the position, close to the uplift pile, of the lower portion of the reinforced concrete cushion layer.
In one embodiment, the cushion layer around the uplift pile is a reinforced concrete cushion layer, the position, close to the uplift pile, of the lower portion of the reinforced concrete cushion layer is a pre-grouting reinforced soil body, a second annular water-swelling water stop strip is arranged in the middle of the reinforced concrete cushion layer and close to the uplift pile, and the temporary stand columns are cut off before the rectangular post-pouring hole position bottom plate is poured.
In one embodiment, the temporary columns are section steel columns.
The utility model discloses a technical scheme that embodiment provided can include following beneficial effect:
the utility model discloses can solve the anti-floating pile head node waterproof difficult problem who does interim stand concurrently, the water-cut is effectual during the construction, and water-proof effects is good during the use, and durability can be strong. The reinforced concrete cushion layer and the grouting pipes embedded below the cushion layer can ensure that the waterproof joint has good water intercepting effect during construction, the tongue-and-groove water-stop glue and the tongue-and-groove annular L-shaped grouting pipes can ensure that the waterproof joint has good waterproof effect during use, and the waterproof joint is provided with a plurality of water intercepting and waterproof systems and has strong durability.
The utility model discloses reinforced concrete cushion is established to well resistance to plucking stake pile side, and the soil body below the cushion adopts two liquid thick liquids to carry out the earlier shutoff, and the reinforced concrete cushion is close to the pre-buried hoop of resistance to plucking stake position and meets water inflation sealing rod, can realize through above-mentioned measure that the bottom plate reserves the hole and not pour the effect of cutting off water before.
The utility model discloses the tongue-and-groove is reserved to the bottom plate of well earlier execution, and the first water swelling sealing-up strip of hoop is buried underground to the tongue-and-groove intermediate position, and hoop L shape slip casting pipe is buried underground to tongue-and-groove lower part position, combines the bottom plate later stage seepage condition, can carry out epoxy grouting plugging many times through tongue-and-groove hoop L shape slip casting pipe, ensures water-proof effects during the use.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is the utility model provides a section schematic diagram of uplift pile head node waterproof construction who doubles as interim stand.
Fig. 2 is the utility model provides a double as temporary stand's uplift pile head node waterproof construction's plane schematic diagram.
Reference numerals:
1. uplift piles; 2. rectangular post-cast hole holes; 3. a rectangular tongue-and-groove; 4. a first water-swellable seal; 5. an L-shaped grouting pipe; 6. vertical reinforcing steel bars; 7. water-swellable water-stop glue; 8. permeable modified epoxy waterproof paint; 9. polymer cement leveling mortar; 10. a single-component polyurethane sealant; 11. a flexible waterproof reinforcing layer; 12. a flexible waterproof layer; 13. a fine stone concrete protective layer; 14. a structural floor; 15. a reinforced concrete cushion layer; 16. a plain concrete cushion; 17. a cushion layer vertical grouting pipe; 18. pre-grouting to reinforce soil; 19. a second water-swelling water stop strip; 20. and (4) temporary columns.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," and the like are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
An uplift pile head node waterproof structure serving as a temporary stand column comprises a reinforced concrete cushion layer 15, a plain concrete cushion layer 16, a flexible waterproof reinforcing layer 11, a flexible waterproof layer 12, a fine aggregate concrete protective layer 13, a structural bottom plate 14, the temporary stand column 20, an uplift pile 1, a pile head and a permeable modified epoxy waterproof coating 8.
The uplift pile 1 is also used as a temporary stand column 20, a rectangular post-cast hole 2 is formed in the position of the uplift pile 1 on a structural bottom plate 14, a rectangular rabbet 3 is formed in the position of the rectangular post-cast hole 2 on the structural bottom plate 14, a first water-swelling water stop strip 4 is embedded in the annular direction in the middle of the rectangular rabbet 3, an L-shaped grouting pipe 5 is embedded in the annular direction in the lower portion of the rectangular rabbet 3, and the structural bottom plate 14 at the reserved hole is cast after the temporary stand column 20 is cut off.
1 top entering structure bottom plate 14 of uplift pile, vertical reinforcing bar 6 stretches into structure bottom plate 14, and pile head and pile side are dug mao and are handled and the sanitization, and water inflation stagnant water glue 7 is applied paint with a brush to pile head position owner muscle periphery.
The permeable modified epoxy waterproof paint 8 is coated on the pile head and the pile side, wherein the permeable modified epoxy waterproof paint 8 on the pile side is coated downwards to the top of the cushion layer and is bent and extended towards the outside of the pile side, and polymer cement leveling mortar 9 and a single-component polyurethane sealant 10 are arranged on the outer side of the vertical bending part of the permeable modified epoxy waterproof paint 8 on the pile side.
Implement pile side waterproof coating layer horizontal extension part upper portion and set up flexible waterproof layer 11, lower part and set up flexible waterproof layer 12, flexible waterproof layer 11 upper portion sets up fine aggregate concrete protective layer 13, and fine aggregate concrete protective layer 13 upper portion is structural bottom plate 14, flexible waterproof layer 12 lower part sets up fine aggregate concrete protective layer 13 and plain concrete bed course 16, and the plain concrete bed course 16 lower part outside is the natural soil body of foundation ditch bottom.
A circumferential cushion layer vertical grouting pipe 17 is embedded in soil around the uplift pile 1, and a pre-grouting reinforcement soil 18 is arranged at the position, close to the uplift pile 1, of the lower part of the reinforced concrete cushion layer 15; the cushion layer around the uplift pile 1 is a reinforced concrete cushion layer 15, the lower portion of the reinforced concrete cushion layer 15, which is close to the uplift pile 1, is a pre-grouting reinforced soil body 18, the annular second water-swelling water stop strip 19 is arranged at the position, close to the uplift pile 1, of the middle portion of the reinforced concrete cushion layer 15, and the temporary stand column 20 is cut off before the bottom plate at the position of the rectangular post-pouring hole 2 is poured.
Example 2:
in contrast to example 1, the temporary uprights 20 in example 2 are section steel columns.
The construction method of the uplift pile head node waterproof structure which is also used as the temporary stand column comprises the following steps:
firstly, constructing a foundation pit enclosure structure, a temporary upright post 20 and a cover excavation top plate;
secondly, supporting and excavating a foundation pit;
thirdly, excavating to the bottom of the foundation pit, constructing a plain concrete cushion layer 16, wherein the thickness of the cushion layer is not less than 150mm, chiseling a concrete protective layer at the position of a temporary upright post 20 close to the cushion layer, painting permeable modified epoxy waterproof paint 8, penetrating into the concrete to be not less than 3mm, using the paint in an amount of not less than 0.6kg/m2, constructing a reinforced concrete cushion layer 15 near the temporary upright post 20, wherein the thickness of the cushion layer is not less than 150mm, the width of the cushion layer is not less than 1000mm, a water-swelling water stop strip and a circumferential vertical grouting pipe are pre-embedded at the position of the reinforced concrete cushion layer 15 close to the temporary upright post 20 and the uplift pile 1, the water-swelling water stop strip is fixed between a new structure and an old structure through cushion layer steel bars, the circumferential vertical grouting pipe is not less than 100mm away from the uplift pile 1, the top of the grouting pipe is not less than 150mm higher than the cushion layer, 8 circumferential vertical grouting pipes are arranged in each post-pouring hole, and cement paste or cement-water glass double-liquid cement paste can be injected, the grouting equipment adopts a double-cylinder double-liquid grouting machine;
the fourth step: applying a flexible waterproof layer 12 above the cushion layer, applying a flexible waterproof reinforcing layer 11 at the junction of the plain concrete cushion layer 16 and the reinforced concrete cushion layer 15, and paving the waterproof reinforcing layer from the position of the uplift pile 1 and extending to the outer side of the junction of the cushion layers by not less than 250 mm;
the fifth step: a fine stone concrete protective layer 13 is applied above the flexible waterproof layer 12 and the flexible waterproof reinforcing layer 11, and the thickness of the protective layer is not less than 50 mm;
and a sixth step: constructing a structural bottom plate 14, reserving a rectangular hole at a position close to a temporary upright post 20 and an uplift pile 1, then pouring, wherein the clear width of the short edge of the reserved hole is larger than or equal to 200mm than the diameter of the temporary upright post 20, reserving a rabbet in advance, burying a circumferential first water-swelling water stop strip 4 at the middle position of the rabbet, burying 12 circumferential L-shaped grouting pipes 5 at the middle position of the lower part of the rabbet, wherein the top of each grouting pipe is higher than the bottom plate by not less than 150mm, each grouting pipe comprises a nylon thread braided sleeve, chloroprene rubber filling, a hard plastic core pipe, a grout outlet and other components, and can be filled with epoxy resin for leaking stoppage, and grouting equipment adopts an epoxy resin grouting pump;
the seventh step: after the pre-construction bottom plate reaches the design strength of 85%, pre-plugging the cushion layer and the bottom of the temporary upright post 20 and the uplift pile 1 with cement glass slurry by using the cushion layer pre-embedded grouting pipe, wherein the grouting radius is not less than 500 mm;
eighth step: constructing main structures such as side walls, middle plates and the like, and finishing the construction of the main structures except the reserved holes of the bottom plate;
the ninth step: after the main structure reaches 100% of the design strength, the temporary upright columns 20 are gradually broken to the positions near the bottom plate from top to bottom by the top plate and the middle plate, and the vertical steel bars 6 anchored into the bottom plate are reserved at the tops of the uplift piles 1 at the bottoms of the upright columns;
the tenth step: chiseling the pile head and the pile side of an uplift pile 1, brushing permeable modified epoxy waterproof paint 8, enabling the chiseling to penetrate into concrete to be not less than 3mm, enabling the using amount of the paint to be not less than 0.6kg/m2, enabling a main rib of the uplift pile 1 to extend into a main structure bottom plate 14, extruding the intersection of the main rib and the bottom plate by using a glue gun, constructing a rainwater expansion water stop glue at the joint of a vertical reinforcing steel bar 6 of the pile head of the uplift pile 1 and the concrete of the uplift pile 1, enabling the brushing radius of the water stop glue to be not less than 50mm, brushing polymer cement leveling mortar 9 and single-component polyurethane sealant 10 on the outer side of a vertical bending part of a waterproof paint layer on the pile side, wherein the thickness of the polymer cement leveling mortar 9 is 30-50 mm, and the brushing width of the single-component polyurethane sealant 10 is not less than 50 mm;
the eleventh step: paving a 50 mm-thick fine stone concrete protective layer 13 on the waterproof roll layer close to the uplift pile 1, binding a bottom plate steel bar, and pouring structural bottom plate 14 concrete in the reserved hole area to a designed elevation;
the twelfth step: and (3) grouting and plugging are performed to the L-shaped grouting pipe 5 through the rabbet ring in combination with the later-stage leakage condition of the bottom plate, cement slurry is adopted for grouting, and the grouting pipe above the bottom plate is cut off after plugging.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure should be limited only by the attached claims.
Claims (6)
1. The utility model provides an uplift pile head node waterproof construction who does interim stand concurrently, its characterized in that, this uplift pile head node waterproof construction who does interim stand concurrently is provided with: the anti-pulling pile is also used as a temporary stand column, a rectangular post-cast hole is formed in the position of the anti-pulling pile on a structural bottom plate, a rectangular rabbet is formed in the position of the structural bottom plate at the position of the rectangular post-cast hole, a first circumferential water-swelling water stop strip is embedded in the middle of the rectangular rabbet, and a circumferential L-shaped grouting pipe is embedded in the lower position of the rectangular rabbet;
the periphery of a main rib at the position of a pile head is coated with a water swelling and stopping adhesive, the pile head and the pile side are coated with a permeable modified epoxy waterproof coating, the permeable modified epoxy waterproof coating at the pile side is coated downwards to the top of a cushion layer and is bent and extended towards the outside of the pile side, and polymer cement leveling mortar and a single-component polyurethane sealant are arranged outside the vertical bending part of the permeable modified epoxy waterproof coating at the pile side.
2. The uplift pile head node waterproof structure doubling as a temporary stand column according to claim 1, wherein a flexible waterproof reinforcing layer is arranged on the upper portion of the horizontal extending portion of the permeable modified epoxy waterproof coating, and a flexible waterproof layer is arranged on the lower portion of the horizontal extending portion of the permeable modified epoxy waterproof coating.
3. The uplift pile head node waterproof structure also serving as a temporary stand column according to claim 2, wherein a fine aggregate concrete protective layer is arranged on the upper portion of the flexible waterproof reinforcing layer, a structural bottom plate is arranged on the upper portion of the fine aggregate concrete protective layer, the fine aggregate concrete protective layer and a plain concrete cushion layer are arranged on the lower portion of the flexible waterproof layer, and a natural soil body at the bottom of the foundation pit is arranged on the outer side of the lower portion of the plain concrete cushion layer.
4. The pile head node waterproof structure of an uplift pile doubling as a temporary stand column according to claim 1, wherein a circumferential cushion layer vertical grouting pipe is buried in soil around the uplift pile, and pre-grouting reinforcement soil is arranged at a position, close to the uplift pile, on the lower portion of a reinforced concrete cushion layer.
5. The pile head node waterproof structure of the uplift pile doubling as a temporary stand column according to claim 1, wherein the cushion layer around the uplift pile is a reinforced concrete cushion layer, a pre-grouting reinforcement soil body is arranged at the position, close to the uplift pile, of the lower portion of the reinforced concrete cushion layer, a second annular water-swelling water stop strip is arranged at the position, close to the uplift pile, of the middle portion of the reinforced concrete cushion layer, and the temporary stand column is cut off before pouring of a bottom plate at the position of a rectangular post-pouring hole.
6. The uplift pile head node waterproof structure doubling as a temporary stand column according to claim 1, wherein the temporary stand column is a section steel column.
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