CN215562841U - Newly-built basement is anti to float with installation connecting elements - Google Patents

Newly-built basement is anti to float with installation connecting elements Download PDF

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Publication number
CN215562841U
CN215562841U CN202121881417.5U CN202121881417U CN215562841U CN 215562841 U CN215562841 U CN 215562841U CN 202121881417 U CN202121881417 U CN 202121881417U CN 215562841 U CN215562841 U CN 215562841U
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steel strand
hollow pipe
newly
steel
anchor
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CN202121881417.5U
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高作平
吴博
张畅
代艳辉
李志强
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Wuda Jucheng Structure Co ltd
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Wuda Jucheng Structure Co ltd
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Abstract

The utility model relates to a newly-built basement anti-floating installation connecting component, which comprises a basement foundation, a steel bar net, a hollow pipe, a supporting seat and a connecting piece, wherein the basement foundation comprises a midspan area and a supporting seat area which are integrally formed and connected with each other; the substrate is connected with the hollow pipe in a nested manner, and the groove is blocked; the two end covers are respectively and fixedly connected to two ports of the hollow pipe, and through holes are formed in the end covers; one end of each steel strand is anchored in the support area, the other end of each steel strand penetrates through the hollow pipe and is anchored on the midspan area, and the steel strands in the hollow pipe are located in the same plane and are mutually abutted to the base plate; the sealing element is arranged at the through hole, and the technical problem that the construction process and the material for providing the pre-tightening tension for the steel strand are complex is solved by adopting the method.

Description

Newly-built basement is anti to float with installation connecting elements
Technical Field
The utility model relates to the technical field of construction of newly-built basements, in particular to an anti-floating installation connecting component for a newly-built basement.
Background
With the rapid development of social economy, new technologies and new materials are widely applied to building engineering projects, the more deep the basement of a newly built building is built, the more deep the basement is built, the deep excavated basement cannot be influenced by underground water level, and particularly, the basement bottom plate is easy to deform, crack, seep water and other diseases under the direct action of high-pressure underground water, so that the safety and normal use of the structure are influenced. For the above-mentioned diseases, the conventional methods of thickening the bottom plate, pressing weight to resist floating, supplementing an anti-floating anchor rod behind a waterproof plate to resist floating, draining and reducing pressure are generally adopted, but the conventional method is adopted to solve the above-mentioned basement bottom plate anti-floating diseases and can also produce the following problems: 1. thickening the bottom plate and resisting floating by weight: the increased thickness of the bottom plate can reduce the clear height of the basement, so that the use is influenced; 2. and (3) supplementing an anti-floating anchor rod behind the waterproof plate for anti-floating: the existing basement structure is formed, pressure underground water can gush out when the bottom plate is perforated, silt below the foundation can be brought out accordingly, the bottom of the foundation can be hollowed out seriously, the bearing capacity of the existing structural foundation is influenced, the structural potential safety hazard is generated, and the existing waterproof plate can be prevented from being damaged by anchor rod drilling and cannot be recovered. 3. Draining and reducing pressure: the anti-floating problem cannot be fundamentally solved, the drainage ditch and the drainage facility need to be regularly enclosed, the operation cost is high, and the method is suitable for the soil layer with the upper layer of stagnant water and lower water permeability, wherein the underground water is the soil layer;
in order to solve the problems, Chinese patent CN201310483570.6 appears later, which discloses a high-seepage-proofing anti-floating pile raft structure, which is characterized in that a prestressed hollow pipe section is arranged at the upper part of a cast-in-situ bored pile, the prestressed hollow pipe section is concentric with the cast-in-situ bored pile, and a reinforcement cage of the cast-in-situ bored pile penetrates through the prestressed hollow pipe pile section and extends into a raft foundation to be connected with a reinforcement in the raft; the inner side of the prestressed hollow pipe section is provided with an internal connecting rib; laying a sand cushion layer and a broken stone blind ditch on the upper part of the foundation soil; the raft foundation is sequentially provided with a horizontal water-resisting layer, a cement soil plate and a reinforced concrete raft from bottom to top; and a reinforced material is fixedly connected between the foundation pit fender post and the wall body of the side wall of the basement. The utility model not only can enhance the integrity and the strength of the upper structure, but also can reduce the uplift pressure of underground water and fully utilize the waste slurry of the cast-in-situ bored pile to realize waste utilization; the prestressed hollow pipe section is arranged at the top of the pile body, so that a pile cutting process of the cast-in-situ bored pile can be omitted, and the construction efficiency is improved. The utility model also discloses a construction method of the high-seepage-proofing anti-floating pile raft structure;
however, in the actual operation process, the utility model still has certain problems: according to the technical scheme disclosed by the patent, when the patent is implemented, before concrete is poured into a reinforcement cage, a hollow pipe needs to be fixedly connected to the reinforcement cage, then the concrete is poured, the fixation of the hollow pipe and the reinforcement cage is further realized, then anchor cables are driven into the hollow pipe by adopting expansion bolts and are fixed with the concrete, and finally, a steel strand is adopted between the two anchor cables for prestress tensioning;
in the process, firstly, the hollow pipe and the reinforcement cage need to be fixed, and the inclined arrangement of the anchor rod can be ensured only when the hollow pipe needs to be inclined, therefore, when the hollow pipe and the reinforcement cage are primarily fixed, a specific connecting piece is required to be adopted for fixed connection, secondly, the fixed connection of the anchor cable and the steel strand is important, because the pre-tightening tension of the steel strand directly determines the anti-floating effect of the basement, the pre-tightening tension of the steel strand is determined by the anchor cable, the pre-tightening tension of the steel strand between the two anchor cables can be adjusted by adjusting the extension and contraction of the anchor cable in the hollow pipe, and the connecting piece between the anchor cable and the steel strand can be realized by special parts, the special part not only plays a role in connection, but also plays a role in conveniently adjusting the pre-tightening tension of the steel strand, and in conclusion, the construction process and the materials for providing the pre-tightening tension for the steel strand are complex;
for this reason, there is an urgent need to solve the existing problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model aims to provide a newly-built basement anti-floating installation connecting component to solve the technical problem that the construction process and materials for providing pre-tightening tension for steel strands are complex.
In order to achieve the above object, in one aspect, the present invention provides an anti-floating installation and connection component for a newly-built basement, including a basement foundation, which includes a mid-span area and a pedestal area that are integrally formed and connected to each other, and further including:
the hollow pipe comprises an inclined section and a horizontal section, an included angle between the horizontal section and the inclined section is an obtuse angle, the horizontal section is positioned above the inclined section, the bottom of the horizontal section is provided with a groove, and the groove is communicated with the interior of the hollow pipe;
the base plate is connected with the hollow pipe in a nested manner and blocks the groove;
the two end covers are respectively and fixedly connected to two ports of the hollow pipe, and through holes are formed in the end covers;
one end of each steel strand is anchored in the support area, the other end of each steel strand sequentially penetrates through the through hole in one end cover, the hollow pipe and the through hole in the other end cover and is anchored on the midspan area, and the steel strands in the hollow pipes are located in the same plane and are mutually abutted to the base plate;
and the sealing element is used for sealing a gap between the steel strand and the through hole.
Preferably, the hollow pipe and the end cover are fixedly connected by integral forming.
Further preferably, each strand of steel strand is formed by three steel wires intertwined with each other.
It is further preferred that the cross-section of the groove is of trapezoidal design.
Still further preferably, the method further comprises:
the fixing piece is fixedly arranged on the middle spanning area and is fixedly connected to the free end of the steel strand;
and the prestress tensioning piece provides tensioning prestress for the steel strand.
Preferably, the fixing part comprises a permanent anchor and two finished anchorage devices, and the permanent anchor and the finished anchorage devices are provided with anchor holes for the steel strand to pass through;
the steel strand anchor is characterized by also comprising a movable seat and a fixed seat, wherein the movable seat and the fixed seat are respectively provided with a groove for the steel strand to pass through, and the movable seat and the fixed seat are both arranged between and fixedly connected with a finished product anchor;
the movable seat and the fixed seat are fixedly connected on the support area.
Preferably, the prestress tension member is two jacks, and the two jacks are arranged between the movable seat and the fixed seat and drive the movable seat to move.
It is further preferred that said anchor openings are of a tapered design, and that part of said anchor openings of said permanent anchors are oriented oppositely to the remaining anchor openings.
In order to achieve the above object, another aspect of the present invention provides an anti-floating construction method for a newly-built basement, comprising the following steps:
s1: preparation before construction: cleaning a construction site according to a design drawing, mapping the position of a pile body, and organizing construction materials, machinery and personnel to be in place;
s2: excavation of a foundation pit: digging a foundation pit fender pile at a designed position, according to the calculated discharge amount of cement soil formed by curing slurry generated during construction of a cast-in-situ bored pile in a foundation pile, overetching to a proper depth, and finishing;
s3: laying a sand cushion and a broken stone blind ditch: uniformly paving a sand cushion layer with the thickness of 300-700 mm on the upper part of the foundation soil, and uniformly arranging drainage broken stone blind ditches at intervals in the vertical direction and the horizontal direction in the sand cushion layer;
s4: forming a hole by using the cast-in-situ bored pile: special hole forming equipment is adopted for hole forming according to design requirements, the vertical precision of the hole forming of the pile body is ensured, and the pile length, the pile position deviation and the hole forming depth meet the design requirements;
s5: sinking a steel reinforcement cage: after the hole cleaning of the cast-in-situ bored pile is finished, sinking the reinforcement cage into the hole by adopting hoisting equipment, and controlling the top elevation and the hoisting quality of the reinforcement cage;
s6: paving a reinforcing mesh, paving the reinforcing mesh on the sand cushion layer, and mutually binding the reinforcing mesh and the reinforcement cage;
s7: installing an anchoring piece, wherein the anchoring piece is installed on the steel bar net close to the steel bar cage through bolts and nuts;
s8: installing steel strands, and installing a plurality of steel strands on each anchoring part;
s9: installing a hollow pipe, enabling the steel strands to penetrate through one end cover of the hollow pipe, and enabling the steel strands in the hollow pipe to be located in the same plane when the steel strands penetrate through the horizontal section of the hollow pipe;
s10: mounting a substrate, and clamping the substrate into the groove of the hollow tube;
s11: pouring concrete: drilling a hole of the cast-in-situ pile until a part of the base plate is submerged to form the foundation, and properly vibrating and compacting concrete in the pouring process;
s12: applying a steel strand tensioning prestress, fixedly mounting one fixed seat on the surface of a mid-span area of a foundation through an anchor rod, enabling the steel strand on one anchor piece on an adjacent steel reinforcement cage to pass through one fixed seat and be anchored on the permanent anchor, enabling the steel strand on the other anchor piece on the adjacent steel reinforcement cage to pass through one movable seat and be anchored on the permanent anchor, fixing the fixed end of a jack on the fixed seat, fixing the movable end of the jack with the movable seat, driving the jack to enable the movable seat to move, applying the tensioning prestress on the horizontal section of the steel strand, anchoring the movable seat on concrete through the anchor rod, and taking out the jack;
s13: applying tension prestress of all steel strands in the underground chamber, forming a rectangular reinforcement cage group by taking four reinforcement cages as vertexes according to the positions of the reinforcement cages, connecting every two of the four vertexes of the reinforcement cage group to form an installation connecting line, and implementing the step S12 on the installation connecting line to realize the tension prestress application of all the steel strands in the underground chamber;
s14: leveling, concrete is laid on the foundation, so that the movable seat and the fixed seat are submerged by the concrete.
Compared with the prior art, the utility model has the beneficial effects that:
(I): anti-floating principle: one end of the steel strand is anchored on the support area, the other end of the steel strand is anchored on the middle span area, and the steel strand is provided with tensioning prestress through the prestress tensioning piece, so that the buoyancy of the middle span area is finally transmitted into the support area;
the hollow pipe is arranged to provide certain tensioning prestress for the steel strand positioned in the hollow pipe through the prestress tensioning piece, and because concrete needs to be poured for the first time in the construction process, and the height of the poured concrete reaches the level capable of submerging a part of the base plate, the part of the steel strand positioned outside the hollow pipe and in the concrete cannot provide the tensioning prestress for the steel strand (if the tensioning prestress is forcibly provided, the concrete is crushed by the steel strand), the sealing piece is arranged to play a role of sealing, the concrete is prevented from flowing into the hollow pipe when the concrete is poured for the first time, so that the prestress tensioning piece cannot provide certain tensioning prestress for the steel strand positioned in the hollow pipe, the steel strand does not have an anti-floating function, the base plate is arranged to play a role that when the steel strand provides downward tensioning prestress, the steel strand can be transmitted into the concrete in the support area through the base plate, the line pressure of the steel strands is converted into surface pressure through the substrate and transmitted to the hollow pipe, so that the steel strands can be prevented from being pressed to burst the hollow pipe, the steel strands in the hollow pipe are positioned in the same plane and are mutually abutted to the substrate, and the tensioning prestress of all the steel strands in the hollow pipe can be effectively transmitted to the substrate, so that the steel strands are more effectively prevented from floating;
(II): because tensioning prestress needs to be applied to the steel strands, the value of the tensioning prestress is large, and the base is connected to the steel bar net by bolts, so that the connection between the base and the steel bar net cannot be influenced even if the value of the tensioning prestress of the steel strands is large according to the principle of the jack, and the strength of the anchoring piece is enhanced by adopting an integrated forming design between the base and the anchorage device, so that the anchoring piece is prevented from being broken by the steel strands due to the large value of the tensioning prestress;
(III): the steel strand is through adopting three copper wires intertwine thereby can promote its tensile strength, and when prestressing force tensioning member provided the stretch-draw prestressing force for the steel strand, the steel strand was difficult for the rupture.
(IV): permanent anchor plays through adopting the toper design to make steel strand wires when the anchor, and the anchor that can be comparatively stable is on permanent anchor, and when jack drive sliding seat removed, at this moment, the steel strand wires obtained stretch-draw prestressing force, because the anchor eye orientation of permanent anchor is opposite, consequently, after removing the jack, because permanent anchor both sides atress is balanced, the phenomenon of kick-backing can not appear in permanent anchor.
Drawings
FIG. 1 is a construction layout of an anti-floating installation connecting member for a newly-built basement according to the present invention;
fig. 2 is a cross-sectional view at a in fig. 1 of the anti-floating installation connecting component for the newly-built basement of the utility model;
fig. 3 is a schematic connecting diagram of the anchoring part of fig. 2 of the anti-floating installation connecting component of the newly-built basement;
fig. 4 is a schematic view of the connection between the fixing member and the prestressed tension member of fig. 2 of the anti-floating installation connection member for a newly-built basement according to the present invention;
FIG. 5 is a perspective view of the connection between the hollow tube and the base plate in FIG. 2 of the anti-floating installation connecting member for a newly-built basement according to the present invention;
FIG. 6 is a cross-sectional view of the connection between the hollow tube and the base plate of FIG. 2 of the anti-floating installation connecting member for a newly-built basement;
fig. 7 is a cross-sectional view at B of fig. 6 of the anti-floating installation connecting member for the newly-built basement of the utility model.
In the figure: 1. basement foundation; 11. a mid-span area; 12. a pedestal region; 2. a hollow tube; 21. a groove; 3. a reinforcing mesh; 4. an anchoring member; 41. a base; 411. a threaded hole; 42. an anchorage device; 421. an anchoring hole; 5. steel strand wires; 6. a fixing member; 61. a permanent anchor; 62. finishing the anchorage device; 621. an anchor eye; 63. a movable seat; 64. a fixed seat; 7. a pre-stressed tension member; 8. a substrate; 9. an end cap; 91. and a through hole.
Detailed Description
To explain the technical content, structural features, attained objects and effects of the present invention in detail, embodiments are described below in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The support area 12 of the basement foundation 1 is provided with the pile foundation below, so that the compressive strength of the support area is high, sediment and underground water below the support area 12 cannot influence the support area 12, and the midspan area 11 is not supported by the pile foundation below the midspan area 11, so that the basement foundation 1 at the midspan area 11 is poor in stability and the technical problem described by the background art is easy to occur;
the permanent anchor 61 is used for locking the tensioning prestress obtained by the steel strand 5 and comprises an anchorage device 42 and a base 41, wherein six anchor holes 621 which are arranged in an equal circumferential array are formed in the permanent anchor 61, the six anchor holes 621 adopt a conical design, the directions of the three anchor holes 621 are towards the left, the directions of the rest three anchor holes 621 are towards the right, and the anchor holes 621 of the permanent anchor 61 face to the opposite directions, so that after the jack is removed, the permanent anchor 61 cannot rebound due to the fact that the two sides of the permanent anchor 61 are stressed in a balanced manner;
the anchoring member 4 is used for fixedly connecting one end of the steel strand 5 with the steel mesh 3, as shown in fig. 3, and comprises a base 41 and an anchoring device 42, wherein the base 41 and the anchoring device 42 are integrally formed, so that the strength of the anchoring member 4 can be ensured, the steel strand 5 cannot be broken when being tensioned and prestressed, and six threaded holes 411 are formed in the base 41; the base 41 and the anchorage device 42 are provided with a through anchorage hole 421;
the fixing piece 6 is fixedly arranged on the middle span area 11 through an anchor rod and is used for being connected with the steel strand 5, as shown in fig. 4, the fixing piece comprises a permanent anchor 61, a movable seat 63, a fixed seat 64 and two finished product anchors 62, wherein anchor holes 621 for the steel strand 5 to pass through are formed in the permanent anchor 61 and the finished product anchors 62, grooves for the steel strand 5 to pass through are formed in the movable seat 63 and the fixed seat 64, and the finished product anchors 62 are fixedly connected with the fixed seat 64 or the movable seat 63 through bolts;
the steel strand 5 is used for transferring buoyancy of the middle crossing area 11 into the support area 12 and is formed by winding three steel wires, the steel strand 5 can improve tensile strength by winding the three steel wires, when the prestress tension piece 7 provides tension prestress for the steel strand 5, the steel strand 5 is not easy to break and comprises a horizontal section and an inclined section, an included angle between the horizontal section and the inclined section is an obtuse angle, and the horizontal section is positioned above the inclined section;
the hollow pipe 2 is used for isolating the steel strand 5 in the hollow pipe from being in mutual contact with concrete outside the hollow pipe so as to be solidified, so that the prestress tension piece can provide certain tension prestress for the steel strand 5 positioned in the hollow pipe, as shown in fig. 5-7, the prestress tension piece comprises an inclined section and a horizontal section, an included angle between the horizontal section and the inclined section is an obtuse angle, the horizontal section is positioned above the inclined section, the bottom of the horizontal section is provided with a groove 21, the groove 21 is communicated with the interior of the hollow pipe 2, and the cross section of the groove 21 is in a trapezoidal design;
the base plate 8, functions such that when the steel strands 5 provide a downward tensile prestress, it can pass through the base plate 8 and thus be transferred into the concrete of the seat area 12, that is, the line pressure of the steel strand 5 is transferred to the hollow tube 2 in a form of surface pressure by the base plate 8, so that the steel strand 5 can be prevented from crushing the hollow tube 2, and the steel strand 5 in the hollow tube 2 is in the same plane and is mutually abutted with the base plate 8, the tensile prestress of all the steel strands 5 in the hollow tube 2 can be effectively transmitted to the base plate 8, thereby the anti-floating of the steel strand 5 is more effective, the cross section of the base plate 8 also adopts the trapezoidal design and is mutually matched with the groove 21, before the base plate 8 is assembled with the groove 21, a worker can wind the plurality of steel strands 5 in the hollow tube 2 into a shape as shown in fig. 6 through the groove 21, so that the steel strands 5 can abut on the base plate 8;
the end covers 9 are integrally formed at two ends of the hollow pipe 2, six through holes 91 are formed in the end covers, and the connection strength between the end covers 9 and the hollow pipe 2 is enhanced by adopting an integrally formed design;
the sealing element is used for sealing a gap between the steel strand 5 and the through hole 91, and is a specific connection mode of a silica gel gasket, namely the silica gel gasket is adhered to the edge of the through hole 91;
the jack does not make excessive statements on the prior art, provides tensioning prestress for the steel strand 5, adopts the jack to provide power due to the large value of the tensioning prestress of the steel strand 5, saves labor, can steplessly adjust the movement amount of the movable seat 63, meets construction requirements, and does not make excessive statements on the jack body for the prior art;
in order to achieve the aim, the utility model provides an anti-floating construction method for a newly-built basement, which comprises the following steps:
s1: preparation before construction: cleaning a construction site according to a design drawing, mapping the position of a pile body, and organizing construction materials, machinery and personnel to be in place;
s2: excavation of a foundation pit: digging a foundation pit fender pile at a designed position, according to the calculated discharge amount of cement soil formed by curing slurry generated during construction of a cast-in-situ bored pile in a foundation pile, overetching to a proper depth, and finishing;
s3: laying a sand cushion and a broken stone blind ditch: uniformly paving sand cushion layers with the thickness of 300-700 mm on the upper part of the basement foundation 1, and uniformly arranging drainage broken stone blind ditches at intervals in the vertical direction and the horizontal direction in the sand cushion layers;
s4: forming a hole by using the cast-in-situ bored pile: special hole forming equipment is adopted for hole forming according to design requirements, the vertical precision of the hole forming of the pile body is ensured, and the pile length, the pile position deviation and the hole forming depth meet the design requirements;
s5: sinking a steel reinforcement cage: after the hole cleaning of the cast-in-situ bored pile is finished, sinking the reinforcement cage into the hole by adopting hoisting equipment, and controlling the top elevation and the hoisting quality of the reinforcement cage;
s6: paving a reinforcing mesh 3, paving the reinforcing mesh 3 on the sand cushion layer, and mutually binding the reinforcing mesh 3 and a reinforcement cage;
s7: installing an anchoring piece 4, and installing the anchoring piece 4 on the reinforcing mesh 3 close to the reinforcement cage through bolts and nuts (because tensioning prestress needs to be applied to the steel strands 5, the value of the tensioning prestress is large, and the base 41 is connected to the reinforcing mesh 3 through bolts, so that according to the principle of a jack, even if the value of the tensioning prestress of the steel strands 5 is large, the connection between the base 41 and the reinforcing mesh 3 cannot be influenced, and the strength of the anchoring piece 4 is enhanced by adopting an integrated forming design between the base 41 and the anchorage device 42, so that the anchoring piece 4 is prevented from being broken by the steel strands 5 due to the large value of the tensioning prestress;
s8: installing steel strands 5, installing a plurality of steel strands 5 on the anchoring piece 4, wherein each steel strand 5 is provided with an inclined section and a horizontal section, an included angle between the inclined section and the horizontal section is an obtuse angle, and the horizontal section is positioned above the inclined section;
s9: installing the hollow pipe 2, and enabling the steel strands 5 to penetrate through one end cover 9 of the hollow pipe 2, so that the steel strands 5 in the hollow pipe 2 are positioned in the same plane when penetrating through the horizontal section of the hollow pipe 2;
s10: installing a substrate 8, and clamping the substrate 8 into the groove 21 of the hollow pipe 2;
s11: pouring concrete: drilling a bored pile hole until the inclined section of a part of the steel strand 5 is submerged to form a basement foundation 1, and properly vibrating and compacting concrete in the pouring process;
s12: applying a tensioning prestress to the steel strand 5, referring to fig. 2, fixedly mounting a fixed seat 64 on the surface of the midspan region 11 of the basement foundation 1 through an anchor rod, enabling the steel strand 5 on one anchoring part 4 on an adjacent steel reinforcement cage to pass through the fixed seat 64 and be anchored on a permanent anchor 61, enabling the steel strand 5 on the other anchoring part 4 on the adjacent steel reinforcement cage to pass through a movable seat 63 and be anchored on the permanent anchor 61, fixing the fixed end of a jack on the fixed seat 64, fixing the movable end with the movable seat 63, driving the jack to enable the movable seat 63 to move, applying the tensioning prestress to the horizontal section of the steel strand 5, anchoring the movable seat 63 on concrete through the anchor rod, and taking out the jack;
s13: applying tension prestress to all steel strands 5 in the underground chamber, as shown in fig. 1, forming a rectangular reinforcement cage group by taking four reinforcement cages as vertexes according to the positions of the reinforcement cages, connecting the four vertexes of the reinforcement cage group pairwise to form an installation connecting line, and implementing step S12 on the installation connecting line to realize the tension prestress application of all the steel strands 5 in the underground chamber;
s14: leveling, namely paving concrete on the basement foundation 1 to enable the concrete to submerge the movable seat 63 and the fixed seat 64.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. The utility model provides an anti installation connecting elements that floats of newly-built basement, includes basement ground (1), and it includes well district (11) and support district (12) are striden to integrated into one piece and interconnect, its characterized in that still includes:
the hollow pipe (2) comprises an inclined section and a horizontal section, an included angle between the horizontal section and the inclined section is an obtuse angle, the horizontal section is positioned above the inclined section, a groove (21) is formed in the bottom of the horizontal section, and the groove (21) is communicated with the interior of the hollow pipe (2);
the base plate (8) is connected with the hollow pipe (2) in a nested manner and blocks the groove (21);
the two end covers (9) are respectively and fixedly connected to two ports of the hollow pipe (2), and through holes (91) are formed in the end covers (9);
one end of each steel strand (5) is anchored in the support area (12), the other end of each steel strand sequentially penetrates through the through hole (91) in one end cover (9), the hollow pipe (2) and the through hole (91) in the other end cover (9) and is anchored on the cross-middle area (11), and the steel strands in the hollow pipe (2) are located in the same plane and are mutually abutted to the substrate (8);
and the sealing element is used for sealing a gap between the steel strand (5) and the through hole (91).
2. The newly-built basement anti-floating installation connecting member according to claim 1, wherein the hollow pipes (2) and the end covers (9) are fixedly connected by integral forming.
3. The anti-floating installation connecting component for the newly-built basement according to claim 1, wherein: each strand of steel strand (5) is formed by mutually winding three steel wires.
4. The anti-floating installation connecting component for the newly-built basement according to claim 1, wherein: the cross section of the groove (21) is designed in a trapezoidal shape.
5. The anti-floating installation connecting component for the newly-built basement according to claim 1, wherein: further comprising:
the fixing piece (6) is fixedly arranged on the midspan area (11) and is fixedly connected to the free end of the steel strand (5);
and the prestress tension piece (7) is used for providing tension prestress for the steel strand (5).
6. The anti-floating installation connecting component for the newly-built basement according to claim 5, wherein: the fixing piece (6) comprises a permanent anchor (61) and two finished product anchors (62), wherein anchor holes (621) for the steel strands (5) to pass through are formed in the permanent anchor (61) and the finished product anchors (62);
the steel strand anchor is characterized by further comprising a movable seat (63) and a fixed seat (64), wherein grooves for the steel strand (5) to pass through are formed in the movable seat (63) and the fixed seat (64), and the movable seat (63) and the fixed seat (64) are arranged between the finished product anchor (62) and the permanent anchor (61) and fixedly connected with the finished product anchor (62);
the movable seat (63) and the fixed seat (64) are both fixedly connected to the support area (12).
7. The anti-floating installation connecting component for the newly-built basement according to claim 6, wherein: the prestress tension member (7) is composed of two jacks, and the two jacks are arranged between the movable seat (63) and the fixed seat (64) and drive the movable seat (63) to move.
8. The anti-floating installation connecting member for the newly-built basement according to claim 7, wherein: the anchoring openings (621) are of a conical design, and part of the anchoring openings (621) of the permanent anchors (61) are oriented opposite to the rest of the anchoring openings (621).
CN202121881417.5U 2021-08-12 2021-08-12 Newly-built basement is anti to float with installation connecting elements Active CN215562841U (en)

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