CN217537031U - Deep basal pit raft, sump pit, elevartor shaft integration construction structures - Google Patents
Deep basal pit raft, sump pit, elevartor shaft integration construction structures Download PDFInfo
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- CN217537031U CN217537031U CN202221403320.8U CN202221403320U CN217537031U CN 217537031 U CN217537031 U CN 217537031U CN 202221403320 U CN202221403320 U CN 202221403320U CN 217537031 U CN217537031 U CN 217537031U
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Abstract
The utility model discloses a deep foundation pit raft, sump well, elevator shaft integrated construction structure, including cement mixing pile foundation pit bottom soil body, cement mixing pile foundation pit bottom soil body upper portion is seted up sump well elevartor shaft local deep pit and the inside of sump well elevartor shaft local deep pit is equipped with the side slope all around; concrete cushions are paved on the upper part of the soil body at the bottom of the cement soil mixing pile foundation pit, the bottom of the local deep pit of the elevator shaft of the collecting well and the side slope; concrete cushion upper berth is equipped with waterproof construction just waterproof construction upper berth is equipped with reinforced concrete basis. The utility model has the advantages that: the integrated rapid construction of the deep foundation pit raft, the water collecting well and the elevator shaft is realized; possess construction speed fast, need not brick bench formwork, reinforcement prefabrication degree is high, the reinforcement installation adopts assembled hoist and mount installation, convenient operation, excavate from the earthwork to the raft board is pour and is accomplished whole time limit for a project short, significant to deep basal pit safety guarantee, save the cost simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the technique of foundation ditch construction and specifically relates to a deep basal pit raft, sump pit, elevartor shaft integration construction structures.
Background
When building deep basal pit raft sump pit elevartor shaft is under construction, general construction step is: building up a building enclosure, reinforcing at the bottom of a foundation pit, excavating earthwork, excavating secondary earthwork at deep positions such as a collecting well elevator shaft bearing platform, manually repairing the bottom and finishing a side slope, building a brick platform film, painting the brick platform film, constructing waterproof coiled materials, constructing a waterproof protective layer, binding lower-layer steel bars at deep positions such as the collecting well elevator shaft bearing platform, binding lower-layer steel bars of a raft, installing a non-opening transmission belt, binding upper-layer raft steel bars on site, binding rear-pouring belt position water-stopping steel plate ampere, installing a rear-pouring belt position template, installing column wall inserted bars, installing a collecting well elevator shaft template, and completing raft concrete pouring.
The method needs a large amount of brick platform membranes and needs to be brushed, the construction period is long, and the construction period is longer due to influence in rainy seasons; the construction of the waterproof layer needs to wait for the drying of the base layer, the waiting time is long, and the construction of the protective layer needs to be carried out after the construction of the waterproof layer; the reinforcing steel bars of the elevator shaft of the raft water collecting well are bound manually on site, a large number of reinforcing steel bar operators are needed in on-site time, the prefabrication degree is low, and the construction speed is low; the conventional post-cast strip force transmission belt is not provided with air holes, so that the post-cast strip is easy to vibrate, is not compact and hollows when concrete is poured, and has poor water stopping effect; the post-cast strip is not communicated with the elevator shaft of the water collecting well in the empty period, and when the post-cast strip is maintained in rainy days or concrete, water and steel bars are always corroded in the post-cast strip, so that the post-cast strip is poor in civilized construction and easy to generate potential safety hazards; the construction from the excavation of the foundation pit to the pouring of the raft is completed, the service life is long, the foundation pit is exposed for a long time and is not closed, and the safety of the foundation pit is not facilitated. Has the defects of high cost, long construction period, unfavorable safety management and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a deep basal pit raft, sump pit, elevartor shaft integration construction structures according to above-mentioned prior art is not enough, through setting up neotype construction structures, has realized the quick construction of deep basal pit raft, sump pit, elevartor shaft integration.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a deep basal pit raft, sump pit, elevartor shaft integration construction structures which characterized in that: the cement-soil mixing pile foundation pit bottom soil body is arranged, a local deep pit of a sump shaft is arranged at the upper part of the cement-soil mixing pile foundation pit bottom soil body, and side slopes are arranged on the periphery inside the local deep pit of the sump shaft; concrete cushions are paved on the upper part of the soil body at the bottom of the cement soil mixing pile foundation pit, the bottom of the local deep pit of the elevator shaft of the collecting well and the side slope; a waterproof structure is laid on the concrete cushion layer, and a reinforced concrete foundation is laid on the waterproof structure;
the reinforced concrete foundation comprises raft plate reinforcing steel bars and raft plate concrete wrapped in the raft plate reinforcing steel bars, wherein the raft plate reinforcing steel bars comprise prefabricated catchment well elevator shaft bottom U-shaped reinforcing steel net pieces, prefabricated catchment well elevator shaft side wall reinforcing steel net pieces, prefabricated raft plate bottom reinforcing steel net pieces and prefabricated catchment raft plate upper layer rib-well wall side wall vertical rib integrated reinforcing steel net pieces; the prefabricated raft bottom layer steel bar net piece is provided with a section steel combined force transmission belt and a steel guide pipe at a raft rear pouring belt, a rear pouring belt horizontal steel bar water stop belt is connected between the section steel combined force transmission belts, and one end of the steel guide pipe extends into a local deep pit of the water collecting well elevator shaft; and the prefabricated raft collecting plate upper layer rib-well wall side wall vertical rib integrated reinforcing steel bar net piece is arranged on the profile steel combined force transmission belt.
The concrete cushion layer on the upper part of the soil body at the bottom of the cement mixing pile foundation pit is formed by pouring concrete on the upper part of the soil body at the bottom of the cement mixing pile foundation pit; the concrete cushion layer at the bottom of the local pit of the collecting well elevator shaft is formed by pouring concrete at the bottom of the local pit of the collecting well elevator shaft or laying a precast concrete pit cushion layer at the bottom of the local pit of the collecting well elevator shaft; the concrete cushion layer on the side slope is formed by laying a plastic grid net on the side slope and pouring concrete on the plastic grid net or laying a prefabricated concrete side slope cushion layer on the side slope.
The waterproof structure consists of a waterproof layer and a fine aggregate concrete waterproof protective layer laid on the waterproof layer, or consists of anti-adhesion waterproof rolls; the waterproof layer is one of a urine-gathering waterproof layer, a polyurethane waterproof layer and an anti-sticking waterproof layer.
The U-shaped reinforcing mesh at the bottom of the prefabricated water collecting well elevator shaft is an inverted trapezoid reinforcing mesh, and the shape and the size of the U-shaped reinforcing mesh are respectively adapted to the shape and the size of a local deep pit of the water collecting well elevator shaft; the U-shaped steel bar net piece at the bottom of the prefabricated water collecting well elevator shaft comprises four side steel bar net pieces and one bottom steel bar net piece, the bottom steel bar net piece is arranged at the bottom of a space formed by the four side steel bar net pieces in a surrounding mode and is connected with the four side steel bar net pieces, and the upper portions of the four side steel bar net pieces extend to the outside of a local deep pit of the water collecting well elevator shaft; the side reinforcing steel bar meshes comprise first U-shaped reinforcing steel bars and second U-shaped reinforcing steel bars arranged on two sides of the first U-shaped reinforcing steel bars, and the side reinforcing steel bar meshes are connected together through the connection of the second U-shaped reinforcing steel bars;
the prefabricated water collecting well elevator shaft side wall reinforcing steel bar net piece is a well-shaped reinforcing steel bar net piece with a bottom, and comprises horizontal reinforcing steel bars at the upper part of the bottom of a water collecting well elevator, longitudinal reinforcing steel bars at the upper part of the bottom of the water collecting well elevator, horizontal reinforcing steel bars at the side wall of the water collecting well elevator shaft and longitudinal reinforcing steel bars at the side wall of the water collecting well elevator shaft;
the prefabricated raft bottom layer steel bar mesh is an annular steel bar mesh, the inner ring of the prefabricated raft bottom layer steel bar mesh is connected with the upper part of the prefabricated water collecting well elevator shaft bottom U-shaped steel bar mesh, and the prefabricated raft bottom layer steel bar mesh comprises raft bottom layer transverse long steel bars, raft bottom layer transverse short steel bars, raft bottom layer longitudinal long steel bars and raft bottom layer longitudinal short steel bars;
the section steel combined force transmission belt comprises four side plates and an intermediate plate, the intermediate plate is arranged in the middle of a space formed by the four side plates in an enclosing manner and is connected with the four side plates, and a plurality of vent holes are formed in the intermediate plate;
the post-pouring water stop belt with the horizontal steel bars comprises two steel water stop steel plates with upturned folding angles, and the two steel water stop steel plates are respectively arranged on two sides of the section steel combined force transmission belt;
prefabricated raft collection board upper rib-vertical muscle integration reinforcing bar net piece of wall of a well lateral wall include cyclic annular reinforcing bar net structure and with the square tubular reinforcing bar net structure that cyclic annular reinforcing bar net structure inner ring is connected, cyclic annular reinforcing bar net structure includes the horizontal long reinforcement of raft upper strata, the horizontal short reinforcement of raft upper strata, the vertical long reinforcement of raft upper strata and the vertical short reinforcement of raft upper strata, square tubular reinforcing bar net structure installs in the prefabricated sump pit elevartor shaft lateral wall reinforcing bar net piece.
The raft plate reinforcing steel bars are connected with foundation column joint bars, and the foundation column joint bars comprise column or wall joint bars and internal positioning stirrups.
And galvanized flow rib nets are arranged on two sides of the raft plate post-cast strip.
A foundation water collecting well elevator shaft inner formwork system is arranged in a square tubular reinforcing steel bar net structure of the prefabricated raft collecting plate upper layer rib-well wall side wall vertical rib integrated reinforcing steel bar net piece, and the foundation water collecting well elevator shaft inner formwork system comprises a water collecting well elevator shaft inner formwork and a framework system.
The utility model has the advantages that: the integrated rapid construction of the deep foundation pit raft, the water collecting well and the elevator shaft is realized; possess construction speed fast, need not brick bench formwork, reinforcement prefabricated degree is high, the steel bar installation adopts assembled hoist and mount installation, convenient operation, excavate from the earthwork to the raft board is pour and is accomplished whole time limit for a project short, significant to deep basal pit safety guarantee, save the cost simultaneously.
Drawings
FIG. 1 is a schematic overall view of the construction structure of the present invention;
FIG. 2 is a schematic view of the structure of the soil body at the bottom of the cement mixing pile foundation pit of the present invention;
FIG. 3 is a schematic view of the installation of the local pit of the water collecting well elevator shaft of the utility model;
FIG. 4 is a schematic diagram (I) of the concrete cushion structure of the present invention;
fig. 5 is a schematic diagram (two) of the installation of the concrete cushion of the present invention;
fig. 6 is a schematic view of the installation of the waterproof layer of the present invention;
fig. 7 is an installation schematic view of the anti-sticking waterproof roll of the present invention;
FIG. 8 is a schematic view of the installation of the waterproof protective layer of fine aggregate concrete according to the present invention;
FIG. 9 is a schematic structural view of a U-shaped steel bar mesh at the bottom of the elevator shaft of the prefabricated water collecting well of the utility model;
fig. 10 is an installation schematic view of the U-shaped steel bar mesh at the bottom of the elevator shaft of the prefabricated water collecting well of the utility model;
fig. 11 is a structural schematic view of the reinforcing mesh on the sidewall of the elevator shaft of the prefabricated water collecting well of the utility model;
fig. 12 is an installation schematic view of the reinforcing mesh on the side wall of the elevator shaft of the prefabricated water collecting well of the utility model;
fig. 13 is a schematic view of the structure of the reinforcing mesh at the bottom of the prefabricated raft;
fig. 14 is a schematic view of the installation of the reinforcing mesh at the bottom of the prefabricated raft;
FIG. 15 is a schematic view of the force transmission belt structure of the profile steel assembly of the present invention;
FIG. 16 is a schematic view of the installation of the force-transmitting belt made of the combined profile steel of the present invention;
FIG. 17 is a schematic view (one) of the installation of the steel guide pipe of the present invention;
FIG. 18 is a schematic view of the installation of the steel guide pipe of the present invention;
fig. 19 is an installation schematic diagram (one) of the rear pouring water stop with horizontal steel bars of the utility model;
fig. 20 is a schematic view (ii) of the installation of the rear pouring water stop with horizontal steel bars of the present invention;
fig. 21 is a schematic structural view of the integrated reinforcing mesh of the upper ribs and the vertical ribs on the sidewall of the well wall of the prefabricated raft collecting plate of the present invention;
fig. 22 is a schematic view of the installation of the integrated reinforcing mesh of the upper ribs and the vertical ribs on the sidewall of the well wall of the prefabricated raft collecting plate of the present invention;
fig. 23 is a schematic view of the installation of the foundation column dowel of the present invention;
FIG. 24 is a schematic view of the installation of the galvanized reinforcing mesh of the present invention;
fig. 25 is a schematic view of the raft plate concrete placement of the present invention;
fig. 26 is the utility model discloses basis sump pit elevartor shaft inner formword system installation schematic diagram.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-26, reference numerals 1-13 in the figures are respectively indicated as soil body 1 at the bottom of a cement-soil mixing pile foundation pit, a local deep pit 101 of a collecting well and an elevator shaft, and a side slope 102; the concrete side-slope and side-pit combined concrete floor comprises a concrete cushion layer 2, a plastic grid net 201, a plastic grid 201-1, a concrete side-slope cushion layer 202, a concrete deep-pit cushion layer 203, a concrete foundation pit cushion layer 204, a precast concrete side-slope cushion layer 205 and a precast concrete deep-pit cushion layer 206; waterproof layer 3, reverse-adhesion waterproof roll 301; a fine stone concrete waterproof protective layer 4; the prefabricated water collecting well elevator shaft bottom U-shaped steel bar mesh sheet 501, first U-shaped steel bars 501-1, second U-shaped steel bars 501-2, prefabricated water collecting well elevator shaft side wall steel bar mesh sheet 502, water collecting well elevator bottom upper transverse steel bars 502-1, water collecting well elevator bottom upper longitudinal steel bars 502-2, water collecting well elevator shaft side wall transverse steel bars 502-3, water collecting well elevator shaft side wall longitudinal steel bars 502-4, prefabricated raft bottom layer steel bar mesh sheet 503, raft lower layer transverse long steel bars 503-1, raft lower layer transverse short steel bars 503-2, raft lower layer longitudinal long steel bars 503-3, raft lower layer longitudinal short steel bars 503-4, prefabricated raft collecting upper layer steel bar-well wall vertical bar integrated steel bar mesh sheet 504, raft upper layer transverse long steel bars 504-1, raft upper layer transverse short steel bars 504-2, raft upper layer longitudinal long steel bars 504-3, raft upper layer longitudinal short steel bars 504-4 and concrete raft 505; the steel section combined force transmission belt comprises a section steel combined force transmission belt 6, a left-end square steel end plate 601, a right-end square steel end plate 602, a front-end rectangular steel plate 603, a rear-end rectangular steel plate 604, a middle steel plate 605 and a vent hole 605-1; a steel guide tube 7; then pouring a water stop belt 8 with horizontal steel bars and a steel water stop steel plate 801; a galvanized reinforcing mesh 9; a foundation column dowel bar 10; a basic sump pit elevator shaft inner template system 11; a sump shaft 12; raft board post-cast strip 13.
The embodiment is as follows: as shown in fig. 1-26, the embodiment relates to a deep foundation pit raft, sump well and elevator shaft integrated construction structure, which mainly comprises a soil body 1 at the bottom of a cement mixing pile foundation pit, a concrete cushion layer 2, a waterproof layer 3, a fine aggregate concrete waterproof protective layer 4, a reinforced concrete foundation 5, a profile steel combined force transmission belt 6, a steel conduit 7, a post-pouring belt horizontal steel bar water stop belt 8, a galvanized reinforcement bar net 9, a foundation column inserted rib 10, a foundation sump well elevator shaft inner template system 11, a sump well elevator shaft 12 and a raft plate post-pouring belt 13. As shown in fig. 1-2, the upper part of the soil body 1 at the bottom of the cement soil mixing pile foundation pit is the bottom of the foundation pit. As shown in fig. 3, a catchment well elevator shaft local deep pit 101 is formed in the upper portion of a soil body 1 at the bottom of a cement mixing pile foundation pit, and side slopes 102 are arranged around the inside of the catchment well elevator shaft local deep pit 101.
As shown in fig. 4-5, concrete cushions 2 are laid on the upper portion of the soil body 1 at the bottom of the cement-soil mixing pile foundation pit, the bottom of the local deep pit 101 of the collector well elevator shaft and the side slopes 102. The concrete cushion layer 2 on the upper part of the soil body 1 at the bottom of the cement mixing pile foundation pit is formed by pouring concrete on the upper part of the soil body 1 at the bottom of the cement mixing pile foundation pit (a concrete foundation pit cushion layer 204 can be formed); the concrete cushion 2 at the bottom of the catch pit elevator shaft local pit 101 is formed by pouring concrete (which can form a concrete pit cushion 203) at the bottom of the catch pit elevator shaft local pit 101 or laying a precast concrete pit cushion 206 at the bottom of the catch pit elevator shaft local pit 101; the concrete cushion layer 2 on the side slope 102 is formed by laying a plastic grid net 201 on the side slope 102 and pouring concrete (the concrete side slope cushion layer 202 can be formed, and the plastic grid net 201 is positioned in the middle of the concrete side slope cushion layer 202) on the plastic grid net 201 or laying a prefabricated concrete side slope cushion layer 205 on the side slope 102, wherein the plastic grid net 201 is composed of a plurality of plastic grids 201-1, and the plastic grid net 201 can prevent concrete from falling.
As shown in fig. 6 and 8, a waterproof layer 3 is laid on the concrete cushion layer 2 for waterproofing, and in this embodiment, the waterproof layer 3 is one of a urine-gathering waterproof layer, a polyurethane waterproof layer, and an anti-sticking waterproof layer. Waterproof layer 3 upper berth is equipped with pea gravel concrete waterproof layer 4, causes destruction to waterproof layer 3 when avoiding follow-up raft board bar construction. As shown in fig. 7, an anti-adhesion waterproof roll 301 may be laid on the concrete cushion layer 2, and raft reinforcing steel bars may be directly laid on the surface of the anti-adhesion waterproof roll 301, so that the need to pour the fine aggregate concrete waterproof protective layer 4 on the surface of the waterproof layer 3 may be eliminated.
In addition, a reinforced concrete foundation 5 is laid on the fine aggregate concrete waterproof protective layer 4 or the reverse adhesion type waterproof roll 301, and in this embodiment, the reinforced concrete foundation 5 is laid on the fine aggregate concrete waterproof protective layer 4. The reinforced concrete foundation 5 (a pre-cast concrete structure) comprises raft plate reinforcing steel bars and raft plate concrete 505 (pre-cast concrete) wrapped in the raft plate reinforcing steel bars, the raft plate reinforcing steel bars comprise prefabricated sump well elevator shaft bottom U-shaped reinforced mesh sheets 501, prefabricated sump well elevator shaft side wall reinforced mesh sheets 502, prefabricated raft plate bottom reinforced mesh sheets 503 and prefabricated sump plate upper rib-well wall side wall vertical rib integrated reinforced mesh sheets 504, as shown in fig. 9-10, the prefabricated sump well elevator shaft bottom U-shaped reinforced mesh sheets 501 are installed in the sump shaft local deep pit 101, wherein the prefabricated sump well elevator shaft bottom U-shaped reinforced mesh sheets 501 are inverted-ladder-shaped reinforced mesh sheets, and the shapes and the sizes of the inverted-ladder-shaped reinforced mesh sheets are respectively matched with the shapes and the sizes of the sump shaft local deep pit 101; the U-shaped steel bar mesh sheet 501 at the bottom of the prefabricated sump well elevator shaft comprises four side steel bar mesh sheets and a bottom steel bar mesh sheet, the bottom steel bar mesh sheet is arranged at the bottom of a space formed by the four side steel bar mesh sheets in a surrounding mode and is connected with the four side steel bar mesh sheets, and the upper parts of the four side steel bar mesh sheets all extend out of a local deep pit of the sump well elevator shaft; the lateral steel bar net sheets comprise a plurality of first U-shaped steel bars 501-1 which are equal in length, transversely or longitudinally arranged and a plurality of second U-shaped steel bars 501-2 which are arranged on two sides of the first U-shaped steel bars 501-1 and are transversely or longitudinally changed in proportion, and the lateral steel bar net sheets are connected together through the connection of the second U-shaped steel bars 501-2. As shown in fig. 11-12, prefabricated sump pit elevator shaft side wall reinforcing steel mesh piece 502 is installed on prefabricated sump pit elevator shaft bottom U type reinforcing steel mesh piece 501, wherein prefabricated sump pit elevator shaft side wall reinforcing steel mesh piece 502 is the well style of calligraphy reinforcing steel mesh piece of area end, and it includes sump pit elevator bottom upper portion horizontal reinforcing steel bar 502-1, sump pit elevator bottom upper portion longitudinal reinforcement 502-2, sump pit elevator shaft side wall horizontal reinforcing steel bar 502-3 and sump pit elevator shaft side wall longitudinal reinforcement 504. As shown in fig. 13-14, a prefabricated raft foundation rebar mesh sheet 503 is installed on a fine aggregate concrete waterproof protective layer 4 (or an anti-adhesive waterproof coiled material 301) on the upper portion of a cement mixing pile foundation pit bottom soil body 1 and connected with a prefabricated water collecting well elevator shaft bottom U-shaped rebar mesh sheet 501, wherein the prefabricated raft foundation rebar mesh sheet 503 is an annular rebar mesh sheet, an inner ring of the annular rebar mesh sheet is connected with the upper portion of the prefabricated water collecting well elevator shaft bottom U-shaped rebar mesh sheet 501, and the prefabricated raft foundation rebar mesh sheet 503 comprises raft foundation transverse long rebar 503-1, raft foundation transverse short rebar 503-2, raft foundation longitudinal long rebar 503-3 and raft foundation longitudinal short rebar 503-4. The prefabricated raft bottom layer steel bar mesh 503 is provided with a section steel combined force transmission belt 6 and a steel guide pipe 7 at a raft board post-cast belt 13, a post-cast belt horizontal steel bar water stop belt 8 is connected between the section steel combined force transmission belts 6, one end of the steel guide pipe 7 extends into a deep pit 101 in the part of a sump shaft, wherein, as shown in figures 15-16, the section steel combined force transmission belt 6 comprises four side plates (a left end square steel end plate 601, a right end square steel end plate 602, a front end rectangular steel plate 603 and a rear end rectangular steel plate 604) and an intermediate steel plate 605, the intermediate steel plate 605 is arranged in the middle of a space enclosed by the four side plates and connected with the four side plates, the intermediate steel plate 605 is provided with a plurality of air vents 605-1 (the diameter is larger than 60 mm), when the air vents 605 are used for casting post-cast concrete, the force transmission belt is prevented from being closed, cannot be vibrated and compacted, the air permeability and air entraining functions are achieved, in addition, the section steel combined force transmission belt 6 is arranged at equal intervals in groups, and achieves integral force transmission of two-side force transmission, the whole blocked steel raft board is transmitted to a large foundation pit wall, and the whole foundation pit is ensured; as shown in fig. 17 to 18, the steel conduit 7 has a certain slope and is used for connecting the raft plate post-cast strip 13 with the sump shaft elevator shaft 12, so that before the post-cast strip concrete is cast, accumulated water in the post-cast strip is automatically drained into the sump shaft elevator shaft during the whole building structure construction period, and the accumulated water is drained completely through a drainage pump arranged in the sump shaft, so that no accumulated water exists in the foundation pit; as shown in fig. 19-20, the post-cast horizontal reinforced water stop 8 includes two steel water stop steel plates 801 with upturned folding angles, and the two steel water stop steel plates 801 are respectively disposed on two sides of the profile steel combined force transmission belt 6, wherein one half of the steel water stop steel plates 801 is cast in the raft foundation which is cast in advance, and the other half is cast in the post-cast concrete, so as to play a role in water stop of the reinforced concrete raft. As shown in fig. 21-22, prefabricated raft collecting plate upper rib-well wall side wall vertical rib integrated reinforcing mesh piece 504 is installed on profile steel combined force transmission belt 8, wherein prefabricated raft collecting plate upper rib-well wall side wall vertical rib integrated reinforcing mesh piece 504 comprises an annular reinforcing mesh structure and a square tubular reinforcing mesh structure connected with an inner ring of the annular reinforcing mesh structure, the annular reinforcing mesh structure comprises raft 504 upper transverse long reinforcing bars 504-1, raft upper transverse short reinforcing bars 504-2, raft upper longitudinal long reinforcing bars 504-3 and raft upper longitudinal short reinforcing bars 504-4, and the square tubular reinforcing mesh structure is installed in prefabricated water collecting well elevator shaft side wall reinforcing mesh piece 502.
As shown in fig. 23, the foundation column joint bar 10 is connected with the raft steel bars, the bottom of the foundation column joint bar 10 is arranged in the reinforced concrete foundation 5, the foundation column joint bar 10 comprises a column or wall joint bar and an internal positioning stirrup, and a frame column or a wall is formed through binding.
As shown in fig. 24, zinc-plated flow-rib nets 9 are disposed on two sides of the raft board post-cast strip 13 to form a rough joint surface for blocking the raft board concrete poured in advance from flowing into the raft board post-cast strip 13.
As shown in fig. 25-26, a basic collector well elevator shaft inner formwork system 11 is arranged in a square tubular reinforcing mesh structure of the prefabricated raft collecting plate upper layer rib-well wall side wall vertical rib integrated reinforcing mesh piece 504, the basic collector well elevator shaft inner formwork system 11 comprises a collector well elevator shaft inner formwork and a framework system, and a collector well elevator shaft 12 can be formed after the formwork stripping of the basic collector well elevator shaft inner formwork system 11. Concrete (raft concrete 505) is poured at the raft first-cast-in-place to form a first-cast-in-place concrete structure (reinforced concrete foundation 5). In addition, the post-cast strip concrete and the raft plate steel bars can form a post-cast strip concrete structure, specifically, the post-cast strip concrete structure means that concrete is poured on the raft plate post-cast strip 13 after the raft plate post-cast strip 13 meets the capping and design-determined time of the main structure (the concrete has no shrinkage and micro-expansion characteristics).
As shown in fig. 1 to 26, the present embodiment also has the following construction method:
1. excavating a foundation pit and reinforcing soil below the bottom of the foundation pit to form a soil body 1 at the bottom of the cement-soil mixing pile foundation pit, excavating a local deep pit 101 of the elevator shaft of the collecting well on the upper part of the soil body 1 at the bottom of the cement-soil mixing pile foundation pit, and arranging side slopes 102 around the inside of the local deep pit 101 of the elevator shaft of the collecting well.
2. Concrete cushions 2 are paved on the upper part of the soil body 1 at the bottom of the cement soil mixing pile foundation pit, the bottom of the local deep pit 101 of the elevator shaft of the collecting well and the side slope 102.
3. Lay on concrete cushion 2 and be equipped with waterproof construction to install the raft reinforcing bar on waterproof construction.
4. After finishing the installation of the raft steel bars, installing the foundation column dowel bars 10, the galvanized flow rib net 9 and the foundation sump pit elevator shaft inner formwork system 11, pouring raft concrete 505 to form a reinforced concrete foundation 5, and then removing the foundation sump pit elevator shaft inner formwork system 11 to form a sump pit elevator shaft 12.
5. And pouring concrete at the raft plate post-cast strip 13 to form a post-cast strip concrete structure.
In conclusion, in the embodiment, the integrated rapid construction for the deep foundation pit raft, the collector well and the elevator shaft is realized; possess construction speed fast, need not brick bench formwork, reinforcement prefabricated degree is high, the steel bar installation adopts assembled hoist and mount installation, convenient operation, excavate from the earthwork to the raft board is pour and is accomplished whole time limit for a project short, significant to deep basal pit safety guarantee, save the cost simultaneously.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description is not repeated herein.
Claims (7)
1. The utility model provides a deep basal pit raft, sump pit, elevartor shaft integration construction structures which characterized in that: the cement mixing pile foundation pit bottom soil body is arranged on the upper portion of the cement mixing pile foundation pit bottom soil body, a water collecting well elevator shaft local falling deep pit is formed in the upper portion of the cement mixing pile foundation pit bottom soil body, and side slopes are arranged on the periphery inside the water collecting well elevator shaft local falling deep pit; concrete cushions are paved on the upper part of the soil body at the bottom of the cement soil mixing pile foundation pit, the bottom of the local deep pit of the elevator shaft of the collecting well and the side slope; a waterproof structure is laid on the concrete cushion layer, and a reinforced concrete foundation is laid on the waterproof structure;
the reinforced concrete foundation comprises raft plate reinforcing steel bars and raft plate concrete wrapped in the raft plate reinforcing steel bars, wherein the raft plate reinforcing steel bars comprise prefabricated catchment well elevator shaft bottom U-shaped reinforcing steel net pieces, prefabricated catchment well elevator shaft side wall reinforcing steel net pieces, prefabricated raft plate bottom reinforcing steel net pieces and prefabricated catchment raft plate upper layer rib-well wall side wall vertical rib integrated reinforcing steel net pieces; the prefabricated raft bottom layer steel bar net piece is provided with a section steel combined force transmission belt and a steel guide pipe at a raft rear pouring belt, a rear pouring belt horizontal steel bar water stop belt is connected between the section steel combined force transmission belts, and one end of the steel guide pipe extends into a local deep pit of the water collecting well elevator shaft; and the prefabricated raft collecting plate upper layer rib-well wall side wall vertical rib integrated reinforcing steel bar net piece is arranged on the profile steel combined force transmission belt.
2. The deep foundation raft, sump well, elevator shaft integration construction structures of claim 1, characterized by: the concrete cushion layer on the upper part of the soil body at the bottom of the cement mixing pile foundation pit is formed by pouring concrete on the upper part of the soil body at the bottom of the cement mixing pile foundation pit; the concrete cushion layer at the bottom of the local pit of the collecting well elevator shaft is formed by pouring concrete at the bottom of the local pit of the collecting well elevator shaft or laying a precast concrete pit cushion layer at the bottom of the local pit of the collecting well elevator shaft; the concrete cushion layer on the side slope is formed by laying a plastic grid net on the side slope and pouring concrete on the plastic grid net or laying a prefabricated concrete side slope cushion layer on the side slope.
3. The deep foundation pit raft, water collecting well and elevator shaft integrated construction structure of claim 1, wherein: the waterproof structure consists of a waterproof layer and a fine aggregate concrete waterproof protective layer laid on the waterproof layer, or consists of anti-adhesion waterproof rolls; the waterproof layer is one of a urine-gathering waterproof layer, a polyurethane waterproof layer and an anti-sticking waterproof layer.
4. The deep foundation pit raft, water collecting well and elevator shaft integrated construction structure of claim 1, wherein: the U-shaped reinforcing mesh at the bottom of the prefabricated water collecting well elevator shaft is an inverted trapezoid reinforcing mesh, and the shape and the size of the U-shaped reinforcing mesh are respectively adapted to the shape and the size of a local deep pit of the water collecting well elevator shaft; the U-shaped steel bar net piece at the bottom of the prefabricated water collecting well elevator shaft comprises four side steel bar net pieces and one bottom steel bar net piece, the bottom steel bar net piece is arranged at the bottom of a space formed by the four side steel bar net pieces in a surrounding mode and is connected with the four side steel bar net pieces, and the upper portions of the four side steel bar net pieces extend to the outside of a local deep pit of the water collecting well elevator shaft; the side reinforcing steel bar meshes comprise first U-shaped reinforcing steel bars and second U-shaped reinforcing steel bars arranged on two sides of the first U-shaped reinforcing steel bars, and the side reinforcing steel bar meshes are connected together through the connection of the second U-shaped reinforcing steel bars;
the prefabricated water collecting well elevator shaft side wall reinforcing steel bar net piece is a well-shaped reinforcing steel bar net piece with a bottom, and comprises horizontal reinforcing steel bars at the upper part of the bottom of a water collecting well elevator, longitudinal reinforcing steel bars at the upper part of the bottom of the water collecting well elevator, horizontal reinforcing steel bars at the side wall of the water collecting well elevator shaft and longitudinal reinforcing steel bars at the side wall of the water collecting well elevator shaft;
the prefabricated raft bottom steel mesh sheet is an annular steel mesh sheet, the inner ring of the prefabricated raft bottom steel mesh sheet is connected with the upper part of the U-shaped steel mesh sheet at the bottom of the prefabricated water collecting well elevator shaft, and the prefabricated raft bottom steel mesh sheet comprises raft bottom transverse long steel bars, raft bottom transverse short steel bars, raft bottom longitudinal long steel bars and raft bottom longitudinal short steel bars;
the section steel combined force transmission belt comprises four side plates and a middle plate, the middle plate is arranged in the middle of a space formed by the four side plates in an enclosing mode and is connected with the four side plates, and a plurality of vent holes are formed in the middle plate;
the post-pouring water stop belt with the horizontal steel bars comprises two steel water stop steel plates with upturned folding angles, and the two steel water stop steel plates are respectively arranged on two sides of the section steel combined force transmission belt;
prefabricated raft collection board upper rib-vertical muscle integration reinforcing bar net piece of wall of a well lateral wall include cyclic annular reinforcing bar net structure and with the square tubular reinforcing bar net structure that cyclic annular reinforcing bar net structure inner ring is connected, cyclic annular reinforcing bar net structure includes the horizontal long reinforcement of raft upper strata, the horizontal short reinforcement of raft upper strata, the vertical long reinforcement of raft upper strata and the vertical short reinforcement of raft upper strata, square tubular reinforcing bar net structure installs in the prefabricated sump pit elevartor shaft lateral wall reinforcing bar net piece.
5. The deep foundation pit raft, water collecting well and elevator shaft integrated construction structure of claim 1, wherein: the raft reinforcing bars are connected with foundation column joint bars, and the foundation column joint bars comprise column or wall joint bars and internal positioning stirrups.
6. The deep foundation raft, sump well, elevator shaft integration construction structures of claim 1, characterized by: and galvanized flow rib nets are arranged on two sides of the raft plate post-cast strip.
7. The deep foundation pit raft, water collecting well and elevator shaft integrated construction structure of claim 4, wherein: a foundation water collecting well elevator shaft inner formwork system is arranged in a square tubular reinforcing steel bar net structure of the prefabricated raft collecting plate upper layer rib-well wall side wall vertical rib integrated reinforcing steel bar net piece, and the foundation water collecting well elevator shaft inner formwork system comprises a water collecting well elevator shaft inner formwork and a framework system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221403320.8U CN217537031U (en) | 2022-06-07 | 2022-06-07 | Deep basal pit raft, sump pit, elevartor shaft integration construction structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221403320.8U CN217537031U (en) | 2022-06-07 | 2022-06-07 | Deep basal pit raft, sump pit, elevartor shaft integration construction structures |
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| Publication Number | Publication Date |
|---|---|
| CN217537031U true CN217537031U (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221403320.8U Active CN217537031U (en) | 2022-06-07 | 2022-06-07 | Deep basal pit raft, sump pit, elevartor shaft integration construction structures |
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| Country | Link |
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| CN (1) | CN217537031U (en) |
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2022
- 2022-06-07 CN CN202221403320.8U patent/CN217537031U/en active Active
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