CN212026266U

CN212026266U - Row pile foundation pit supporting structure

Info

Publication number: CN212026266U
Application number: CN201922311235.3U
Authority: CN
Inventors: 李列娟; 刘瑞牛; 周峰涛; 董红刚; 汪国华
Original assignee: Scegc No2 Construction Engineering Group Co ltd
Current assignee: Scegc No2 Construction Engineering Group Co ltd
Priority date: 2019-08-29
Filing date: 2019-12-20
Publication date: 2020-11-27
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a pile foundation pit supporting structure, which relates to the technical field of building construction, and comprises a field, wherein continuous supporting piles forming a frame shape are drilled into the field, rotary jet piles are poured between the supporting piles, the inner part of the supporting pile forming the frame shape is provided with a construction area, a transition area is arranged between the construction area and the supporting pile, the top of the transition area is lower than the top of the construction area, the top of the transition area is provided with a water collecting pit, the pile is used for protecting the periphery of the foundation pit, the supply of water sources outside the foundation pit to the inner part of the foundation pit is effectively reduced, the dry and convenient construction in the foundation pit is ensured, simultaneously a mud pit is arranged for collecting overflowed slurry, the site mud is prevented from being caused, the construction is influenced, the poured concrete slab and a bottom plate can fix the supporting pile and the earth surface outside the foundation pit, the supporting pile is prevented from inclining towards the inner part of the foundation pit, the stability of support pile erects is improved, does benefit to the stability of guaranteeing the foundation ditch in order to improve the construction safety nature.

Description

Row pile foundation pit supporting structure

Technical Field

The utility model relates to a construction technical field specifically is a campshed underground structure.

Background

The high-pressure rotary-jetting grouting method is divided into a single-pipe method (only jetting cement paste), a double-pipe method (jetting cement paste and compressed air) and a three-pipe method (jetting cement paste, compressed air and high-pressure water simultaneously), wherein a grouting machine is used for injecting cement paste into foundation soil in a high-pressure jet mode of 20-40MPa, and the cement paste and a soil body undergo a series of physical and chemical reactions to form a low-permeability pile body, so that the water body can be effectively prevented from permeating. The low-permeability pile body can isolate water outside a foundation pit, so that the stability of a soil body and a foundation under a building foundation is guaranteed, the existing foundation pit curtain grouting seepage-proofing performance is poor, and the safety of operation in the foundation pit is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a campshed foundation ditch supporting construction has solved current foundation ditch curtain grout prevention of seepage nature relatively poor, has influenced the problem of the security of operation in the foundation ditch.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a campshed foundation pit supporting construction, includes the place, it has the continuous fender pile that forms the frame form to bore on the place, it spouts the stake soon to fill between the fender pile, the inside that the fender pile formed the frame form is equipped with the construction district, the transition district has been seted up between construction district and the fender pile, and the top in transition district is less than the top in construction district, the sump pit has been seted up at the top in transition district, the top in transition district just is located and has seted up spread groove 7 between the sump pit, the slot has been seted up to one side that the fender pile kept away from the construction district in the place, the concrete slabs has been pour to the inside of slot, and the bottom of concrete slabs has pour the bottom plate, the inner wall bottom of slot is pegged graft and is had the montant, and the montant inserts the inside of bottom.

Furthermore, a mud pit is formed in the site and located on the side portion of the jet grouting pile, and a drainage channel is formed between the mud pit and the jet grouting pile.

Furthermore, the rotary spraying pile adopts cement slurry, cement adopts Portland cement with the water cement ratio being high, and the construction is carried out by adopting a high-pressure rotary spraying single-pile method.

Furthermore, the aperture of the jet grouting pile is 100mm, and the depth of the hole is 9.1 m.

Further, the diameter of the support pile is 800 mm, the distance is 600 mm, and the pile length is 16.3 m.

Furthermore, a connecting rod is fixed on the side wall of the support pile, and the end part of the connecting rod extends to the interior of the concrete slab and is connected with an end block.

(III) advantageous effects

The utility model provides a row pile. The method has the following beneficial effects:

1. this row of piles forms the relatively poor curtain of water permeability through a fender pile and jet grouting pile, has protected the periphery of foundation ditch, and the effectual foundation ditch external water source that has reduced helps guaranteeing the dry convenient construction in the foundation ditch to the inside supply of foundation ditch, has seted up the mud pond simultaneously and has collected the thick liquid that overflows, avoids causing the place muddy, influences the construction.

2. This campshed, concrete slabs and the bottom plate of pouring can be fixed fender pile and the outer earth's surface of foundation ditch, avoid the fender pile to the inside slope of foundation ditch, improve the stability that fender pile erect, do benefit to the stability of guaranteeing the foundation ditch in order to improve the construction security.

Drawings

Fig. 1 is a plan view of the present invention;

FIG. 2 is a schematic view of the support pile of the present invention connected to a jet grouting pile;

FIG. 3 is a schematic view of the support pile of the present invention connected to a concrete slab;

fig. 4 is a construction flow chart of the jet grouting pile of the utility model.

In the figure: the system comprises a site 1, a support pile 2, a jet grouting pile 3, a construction area 4, a transition area 5, a sump 6, a connecting groove 7, a mud pit 8, a drainage channel 9, a concrete plate 10, a bottom plate 11, a groove 12, a vertical rod 13, a connecting rod 14 and an end block 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model provides a row pile foundation pit supporting structure, as shown in figure 1-4, including the place 1, the continuous forming frame-shaped support pile 2 is drilled into on the place 1, the jet grouting pile 3 is poured between the support piles 2, the interior of the frame-shaped formation of the support pile 2 is provided with the construction area 4, the transition area 5 is arranged between the construction area 4 and the support pile 2, and the top of the transition area 5 is lower than the top of the construction area 4, the top of the transition area 5 is provided with the sump 6, the top of the transition area 5 is provided with the connecting groove 7 between the sump 6, the side of the support pile 2 away from the construction area 4 in the place 1 is provided with the groove 12, the concrete plate 10 is poured into the groove 12, and the bottom plate 11 is poured into the bottom of the concrete plate 10, the bottom of the inner wall of the groove 12 is spliced with the montant 13, and the montant 13 is inserted into the interior of the bottom plate 11, the frame-shaped support pile 2, and spout stake 3 soon between fender pile 2, and spout the lateral wall parcel of stake 2 soon in the both sides of stake 3, and then formed the relatively poor curtain of water permeability, the effectual supply of foundation ditch external water source to the foundation ditch inside that has reduced helps guaranteeing the dry convenient construction in the foundation ditch, just place the material above transition zone 5, infiltration in the foundation ditch can be hoarded to sump pit 6 simultaneously, be convenient for discharge it, slot 12 can be with ponding too much the inside water of sump pit 6 to other sump pits 6, avoid ponding to spill over and influence the construction, concrete slabs 10 and bottom plate 11 of pouring can be fixed fender pile 2 with the earth's surface outside the foundation ditch, avoid fender pile 2 to incline to the inside of foundation ditch, improve the stability that fender pile 2 erect.

Wherein, in place 1 and the lateral part that is located spout soon stake 3 has seted up mud pit 8, and has seted up between mud pit 8 and the spout soon stake 3 and excrete the passageway 9, and the specification of mud pit 8 is 2000mm x 25000mm, lets the thick liquid that spills over concentrate to handle in digging good mud pit 8, avoids causing the place muddy, influences the construction.

Wherein, the rotary spraying pile 3 adopts cement grout, the cement adopts No. 425 common portland cement, the water cement ratio is 0.65, and the construction is carried out by adopting a high-pressure rotary spraying single pile method.

Wherein, the aperture of the jet grouting pile 3 is 100mm, and the depth of the hole is 9.1 m.

The diameter of the support pile 2 is 800 mm, the distance is 600 mm, and the pile length is 16.3 m.

Wherein, the lateral wall of the support pile 2 is fixed with a connecting rod 14, the end part of the connecting rod 14 extends to the inside of the concrete plate 10 and is connected with an end block 15, and the connection between the support pile 2 and the concrete plate 10 is stabilized.

The working principle is as follows: during the use, bore into framed fender pile 2 on place 1, and spout stake 3 soon between fender pile 2, and spout stake 3's both sides soon and will prop up the lateral wall parcel of fender pile 2, and then formed the relatively poor curtain of water permeability, convenient construction, just place the material above transition zone 5, infiltration in the foundation ditch can be hoarded to sump pit 6 simultaneously, discharge it, slot 12 can be with the too much inside water drainage of sump pit 6 of ponding to other sump pits 6, avoid ponding to spill over and influence the construction, concrete slabs 10 and bottom plate 11 of pouring can be fixed fender pile 2 with the earth's surface outside the foundation ditch, avoid fender pile 2 to incline to the inside of foundation ditch, improve the stability that fender pile 2 erect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a campshed foundation pit supporting construction, its characterized in that, includes place (1), it has continuous formation frame form fender pile (2) to bore on place (1), it spouts stake (3) soon to fill between fender pile (2), the inside that fender pile (2) formed the frame form is equipped with construction area (4), seted up transition region (5) between construction area (4) and fender pile (2), and the top of transition region (5) is less than the top of construction area (4), sump pit (6) have been seted up at the top of transition region (5), the top of transition region (5) just is located between sump pit (6) and has seted up spread groove (7), the one side that construction area (4) was kept away from in place (1) and just is located fender pile (2) has seted up slot (12), concrete slab (10) have been pour to the inside of slot (12), and bottom pouring of concrete slab (10) has bottom plate (11), the bottom of the inner wall of the groove (12) is inserted with a vertical rod (13), and the vertical rod (13) is inserted into the bottom plate (11).

2. The pile foundation pit supporting structure of claim 1, wherein: a mud pit (8) is formed in the site (1) and located on the lateral portion of the jet grouting pile (3), and a drainage channel (9) is formed between the mud pit (8) and the jet grouting pile (3).

3. The pile foundation pit supporting structure of claim 1, wherein: the aperture of the jet grouting pile (3) is 100mm, and the depth of the hole is 9.1 m.

4. The pile foundation pit supporting structure of claim 1, wherein: the diameter of the supporting pile (2) is 800 mm, the distance is 600 mm, and the pile length is 16.3 m.

5. The pile foundation pit supporting structure of claim 1, wherein: the side wall of the support pile (2) is fixed with a connecting rod (14), and the end part of the connecting rod (14) extends to the inside of the concrete slab (10) and is connected with an end block (15).