CN212405166U - Double-row pile and inclined strut combined soft soil deep foundation pit supporting structure - Google Patents
Double-row pile and inclined strut combined soft soil deep foundation pit supporting structure Download PDFInfo
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- CN212405166U CN212405166U CN202020619861.9U CN202020619861U CN212405166U CN 212405166 U CN212405166 U CN 212405166U CN 202020619861 U CN202020619861 U CN 202020619861U CN 212405166 U CN212405166 U CN 212405166U
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Abstract
The utility model belongs to the technical field of the excavation supporting technology and specifically relates to a double row pile and bracing combination weak soil deep basal pit supporting construction is related to, its technical scheme main points are: including the foundation ditch and set up first basic raft and second basic raft on the foundation ditch, the first mounting of fixedly connected with on the first basic raft, fixedly connected with second mounting on the second basic raft, fixed connection between first mounting and the second mounting, the utility model discloses have the function of promoting the joint strength between two basic rafts, and then play the effect that promotes basic raft bulk strength.
Description
Technical Field
The utility model belongs to the technical field of the excavation supporting technology and specifically relates to a double row pile and bracing combination weak soil deep basal pit supporting construction is related to.
Background
Along with the increasing demand of people to buildings such as underground shopping malls and underground parking lots, the utilization frequency of underground space in building construction is higher and higher, and the foundation pit engineering is usually needed when underground construction is carried out, mainly comprises foundation pit supporting system design and construction and earthwork excavation, and is a system engineering with strong comprehensiveness. In the process of foundation pit construction, firstly, an underground space is excavated downwards on the ground to form a deep foundation pit, then, vertical soil retaining enclosing structures are arranged around the deep foundation pit and used for supporting a pit wall of the deep foundation pit to prevent the pit wall from collapsing, in addition, supporting structures for preventing the enclosing structures from collapsing in an offset mode are arranged among the enclosing structures, and the supporting structures exert supporting force on the enclosing structures to improve the stability of the enclosing structures.
At present, Chinese patent document with patent publication No. CN206204954U discloses a double-row pile and diagonal bracing combined soft soil deep foundation pit supporting structure, which comprises an inner row pile and an outer row pile arranged on the outer side of a foundation pit, a connecting plate, a top curing area, a pile top connecting beam and a vertical water stop pile arranged between the inner row pile and the outer row pile, and a vertical water stop plate inserted in the vertical water stop pile; arranging a pit bottom slurry soil layer at the bottom of the foundation pit along the inner sides of the inner row piles; an inclined strut is arranged between the inner row piles and the basic raft, and a vertical steel lattice column is arranged in an inclined strut span; the joints of the inclined struts and the basic raft are provided with bottom support piers, and the joints of the inclined struts and the internal row of piles are provided with waist beams. The double-row piles and the inclined struts are combined to bear force, deformation and stable dynamic control in the process of excavation of the foundation pit are achieved while stability of the foundation pit supporting structure is guaranteed, stability of the foundation pit supporting structure is improved, in addition, the vertical water stop piles are arranged on the outer sides of the outer rows of piles, the water stop layers are inserted into the water stop plate layers along the axis of the vertical water stop piles and are pasted between the inner rows of piles and the shear wall, the problem of seepage damage of the foundation pit can be effectively solved, and the anti-seepage deformation capability of the foundation pit is improved.
However, the above prior art solutions have the following drawbacks: in the work progress, at first need pour the shaping with partial basic raft to make things convenient for the installation of bracing, excavate the soil body at bracing position again after the bracing construction finishes, pour the shaping with basic raft to the remainder, wherein divide twice to pour the problem that has joint strength not enough between two fashioned basic rafts, make the bulk strength of basic raft relatively poor, can't satisfy the foundation bearing capacity requirement well when bearing the load that the building brought.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a double row pile and bracing combination weak soil deep basal pit supporting construction, it has the function that promotes the joint strength between two basic rafts, and then plays the effect that promotes basic raft bulk strength.
In order to achieve the above object, the utility model provides a following technical scheme:
double row pile and bracing combination weak soil deep basal pit supporting construction, include the foundation ditch and set up first basis raft and second basis raft on the foundation ditch, the first mounting of fixedly connected with on the first basis raft, fixedly connected with second mounting on the second basis raft, first mounting with fixed connection between the second mounting.
Through adopting above-mentioned technical scheme, under first mounting and the mutual fixed connection's of second mounting effect, realize fixed connection between first basis raft and the second basis raft, so make the joint strength between first basis raft and the second basis raft obtain promoting, and then play the effect of promoting the bulk strength between first basis raft and the second basis raft.
The utility model discloses further set up to: the first fixing piece comprises a first connecting rod and a first connecting block, the first connecting rod is fixed on the first basic raft, the first connecting block is fixedly connected on the first connecting rod, the second fixing piece comprises a second connecting rod and a second connecting block, the second connecting rod is fixed on the second basic raft, the second connecting block is fixedly connected on the second connecting rod, and the first connecting block is fixedly connected with the second connecting block.
Through adopting above-mentioned technical scheme, first mounting passes through head rod fixed mounting on first basic raft board, and the second mounting passes through second connecting rod fixed mounting on second basic raft board to under the effect of the fixed connection between first connecting block and the second connecting block, realized the fixed connection between first mounting and the second mounting.
The utility model discloses further set up to: the first connecting rod and the second connecting rod all set up the cyclic annular boss on the body of rod lateral wall including being long banding body of rod and along the circumference direction, be provided with the confession in the first basis raft inboard the first storage tank of first connecting rod embedding, be provided with the confession in the second basis raft inboard the second storage tank of second connecting rod embedding.
Through adopting above-mentioned technical scheme, first basis raft and second basis raft pass through concrete placement's mode shaping, the fashioned in-process of concrete placement, the body of rod and the cyclic annular boss landfill of head rod and second connecting rod are in the concrete, after the concrete solidifies, the head rod gomphosis is in first basis raft, under the effect of cyclic annular boss, the head rod can be sealed and deposited and be fixed in on the first basis raft, and simultaneously, the gomphosis of second connecting rod is in second basis raft, under the effect of cyclic annular boss, the second connecting rod can be sealed and deposited and be fixed in on the second basis raft.
The utility model discloses further set up to: the bolt is arranged between the first connecting block and the second connecting block and sequentially penetrates through the first through hole and the second through hole, a nut is connected to the bolt in a threaded manner, and the nut abuts against the second connecting block.
Through adopting above-mentioned technical scheme, first connecting block and second connecting block realize reciprocal anchorage under the effect of bolt and nut.
The utility model discloses further set up to: the first fixing pieces and the second fixing pieces are multiple in number, and the first fixing pieces are fixed on the second fixing pieces in a one-to-one correspondence mode.
Through adopting above-mentioned technical scheme, a plurality of first mountings and a plurality of second mountings have further promoted the connection steadiness between first basic raft and the second basic raft.
The utility model discloses further set up to: a plurality of first mounting and second mounting are along the junction between first basic raft and the second basic raft is equidistant setting.
Through adopting above-mentioned technical scheme, first mounting and second mounting are equidistant setting and can make the joining force between first basis raft and the second basis raft evenly arrange.
The utility model discloses further set up to: be provided with spacing boss on the first basis raft board, be provided with the confession on the second basis raft board spacing recess that spacing boss was pegged graft.
Through adopting above-mentioned technical scheme, spacing boss is pegged graft in spacing recess for it is spacing each other between first basis raft board and the second basis raft board, and then makes the connection between first basis raft board and the second basis raft board more firm.
The utility model discloses further set up to: the limiting boss and the limiting groove are arranged in a dovetail shape.
Through adopting above-mentioned technical scheme, when the spacing boss of swallow-tail form was pegged graft in the spacing recess of spacing form, spacing recess can be with spacing boss chucking wherein, so further promoted the connection steadiness between first basic raft and the second basic raft.
To sum up, the utility model discloses a beneficial technological effect does:
1. under the mutual fixed connection effect of the first fixing piece and the second fixing piece, the first basic raft and the second basic raft are fixedly connected, so that the connection strength between the first basic raft and the second basic raft is improved, and the effect of improving the overall strength between the first basic raft and the second basic raft is further achieved;
2. the plurality of first fixing pieces and the plurality of second fixing pieces play a role in further improving the connection stability between the first basic raft and the second basic raft;
3. spacing boss is pegged graft in spacing recess for it is spacing each other between first basic raft and the second basic raft, and then makes the connection between first basic raft and the second basic raft further consolidated.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
fig. 2 is a cross-sectional view of a preferred embodiment of the present invention.
In the figure, 1, a foundation pit; 2. inner row of piles; 3. a first basic raft; 4. a second basic raft; 5. bracing; 6. supporting piers; 7. a vertical steel lattice column; 8. a first fixing member; 81. a first connecting rod; 82. a first connection block; 9. a rod body; 10. an annular boss; 11. a first accommodating groove; 12. a second fixing member; 121. a second connecting rod; 122. a second connecting block; 13. a first through hole; 14. a second through hole; 15. a bolt; 16. a nut; 17. a limiting boss; 18. a limiting groove; 19. a second receiving groove.
Detailed Description
Refer to fig. 1 and fig. 2, for the utility model discloses a double row pile and bracing combination weak soil deep basal pit supporting construction, including foundation ditch 1, be provided with interior campshed 2 and outer campshed in the 1 outside of foundation ditch, install the connecting plate between interior campshed 2 and outer campshed, top solidification area, roof even roof beam and vertical stagnant water stake, insert vertical water barrier in the vertical stagnant water stake, wherein, the connecting plate, top solidification area, roof even roof beam and vertical stagnant water stake isotructure's concrete connection mode is prior art, and here is no longer repeated. In addition, the bottom of foundation pit 1 is moulded by casting along the horizontal direction and is had interconnect's first basis raft 3 and second basis raft 4, one side butt in one side of second basis raft 4 of first basis raft 3, form like this and be linear butt line, set up bracing 5 between interior campshed 2 and first basis raft 3, bracing 5 respectively with set up in bottom sprag mound 6 of first basis raft 3 junction and with set up in the waist rail (not shown in the figure) fixed connection of interior campshed 2 junction, so realize the installation of bracing 5, set up vertical steel lattice column 7 in bracing 5, the bottom of vertical steel lattice column 7 is connected with second basis raft 4, so carry out fixed support to bracing 5 through vertical steel lattice column 7.
Referring to fig. 1 and 2, the first fixing members 8 are fixedly connected to the first basic raft 3, specifically, the first fixing members 8 include first connecting rods 81 and first connecting blocks 82, and the first connecting rods 81 and the first connecting blocks 82 are integrally formed, wherein the first connecting rods 81 include rod bodies 9 in a long rod shape and annular bosses 10 integrally formed on side walls of the rod bodies 9 along a circumferential direction of the rod bodies 9, the rod bodies 9 of the first connecting rods 81 are arranged along a vertical direction, and the annular bosses 10 are located at bottom ends of the rod bodies 9 of the first connecting rods 81; first connecting block 82 is the setting of square form, and the top of head rod 81 is connected in the bottom surface department of first connecting block 82, and head rod 81 is fixed in on first basis raft 3, so realize being fixed in first mounting 8 on first basis raft 3. Wherein, be provided with the first storage tank 11 that supplies the embedding of head rod 81 in the first basic raft 3, first basic raft 3 is through the mode shaping of concrete placement, at the fashioned in-process of first basic raft 3 pouring, the body of rod 9 and the cyclic annular boss 10 of head rod 81 are buried in the concrete, so form the first storage tank 11 with first body of rod 9 and cyclic annular boss 10 shape looks adaptation, after the concrete solidifies, head rod 81 passes through first storage tank 11 gomphosis in first basic raft 3, finally realize the fixed of head rod 81, when head rod 81 is fixed in on first basic raft 3, the bottom surface butt of first connecting block 82 is in the upper surface of first basic raft 3.
Referring to fig. 1 and 2, the second fixing pieces 12 are fixedly connected to the second basic raft 4, specifically, the second fixing pieces 12 include second connecting rods 121 and second connecting blocks 122, and the second connecting rods 121 and the second connecting blocks 122 are integrally formed, wherein the structural composition and the size of the second connecting rods 121 are consistent with the structural composition and the size of the first connecting rods 81, that is, the second connecting rods 121 all include rod bodies 9 and annular bosses 10. Meanwhile, the shape and structure of the second connection block 122 are the same as those of the first connection block 82, and the manner in which the second connection rod 121 is fixed to the second basic raft 4 is the same as the manner in which the first connection rod 81 is fixed to the first basic raft 3, that is, the second accommodating groove 19 is provided in the second basic raft 4, and in the process of casting and molding the second basic raft 4, the rod body 9 and the annular boss 10 of the second connection rod 121 are embedded in the concrete, so that the second accommodating groove 19 in shape matching with the second rod body 9 and the annular boss 10 is formed, and after the concrete is solidified, the second connection rod 121 is embedded in the second basic raft 4 through the second accommodating groove 19, so as to finally fix the second connection rod 121, and when the second connection rod 121 is fixed to the second basic raft 4, the bottom surface of the second connection block 122 abuts against the upper surface of the second basic raft 4.
Referring to fig. 1 and 2, the first fixing member 8 is fixedly connected to the second fixing member 12, and more specifically, the first connecting block 82 is fixedly connected to the second connecting block 122, wherein a first through hole 13 is formed through the first connecting block 82 in a horizontal direction, the first through hole 13 opens at two opposite side surfaces of the first connecting block 82, a second through hole 14 is formed through the second connecting block 122 in the horizontal direction, the second through hole 14 opens at two opposite side surfaces of the second connecting block 122, one side surface of the first connecting block 82 abuts against one side surface of the second connecting block 122, the first through hole 13 is communicated with the second through hole 14, a bolt 15 is disposed between the first connecting block 82 and the second connecting block 122, the bolt 15 horizontally penetrates through the first through hole 13 and the second through hole 14 in sequence, a nut of the bolt 15 abuts against the first connecting block 82, the bolt 15 is connected with a nut 16 in a threaded manner, the nut 16 abuts against the second connecting block 122, and the first connecting block 82 and the second connecting block 122 are fixed to each other under the action of the bolt 15 and the nut 16.
Referring to fig. 1 and 2, the number of the first fixing pieces 8 and the second fixing pieces 12 is multiple, the multiple first fixing pieces 8 are respectively fixed on the multiple second fixing pieces 12 in a one-to-one correspondence manner, the specific number of the first fixing pieces 8 and the second fixing pieces 12 is determined according to the length of the connection point where the first basic raft 3 and the second basic raft 4 are connected, in this embodiment, three first fixing pieces 8 and three second fixing pieces 12 are provided, the first fixing pieces 8 and the second fixing pieces 12 are arranged at equal intervals along the connection point between the first basic raft 3 and the second basic raft 4, it should be noted that the connection point referred to herein refers to a connection line formed when the first basic raft 3 is connected with the second basic raft 4, the first fixing pieces 8 and the second fixing pieces 12 are arranged at equal intervals along the connection line between the first basic raft 3 and the second basic raft 4, being equidistant setting between a plurality of first mounting 8 and a plurality of second mounting 12 and can making the joining force between first basic raft 3 and the second basic raft 4 obtain evenly arranging, and then more firm when making to be connected between first basic raft 3 and the second basic raft 4.
Referring to fig. 1 and 2, integrated into one piece has spacing boss 17 on first basic raft 3, spacing boss 17 is located one side department of first basic raft 3 towards second basic raft 4, be provided with the spacing recess 18 that supplies spacing boss 17 to peg graft on the second basic raft 4, spacing boss 17 and spacing recess 18 all are the setting of dovetail form, spacing boss 17 pegs graft in spacing recess 18, make and spacing each other between first basic raft 3 and the second basic raft 4, spacing recess 18 can be with spacing boss 17 chucking wherein, so further promoted the connection steadiness between first basic raft 3 and the second basic raft 4.
The implementation principle of the embodiment is as follows: first mounting 8 is fixed in on first basis raft 3 through head rod 81, second mounting 12 is fixed in on second basis raft 4 through second connecting rod 121, first connecting block 82 and second connecting block 122 are fixed through the mode realization of bolt 15 and nut 16 are fixed, and then realize fixing between first mounting 8 and the second mounting 12, under the effect of first mounting 8 and the mutual fixed connection of second mounting 12, realize fixed connection between first basis raft 3 and the second basis raft 4, so make joint strength between first basis raft 3 and the second basis raft 4 obtain promoting, and then play the effect of promoting the bulk strength between first basis raft 3 and the second basis raft 4.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. Double row pile and bracing combination weak soil deep basal pit supporting construction, include foundation ditch (1) and set up first basic raft (3) and second basic raft (4) on foundation ditch (1), its characterized in that: fixedly connected with first mounting (8) on first basis raft board (3), fixedly connected with second mounting (12) on second basis raft board (4), first mounting (8) with fixed connection between second mounting (12).
2. The double row pile and diagonal brace combined soft soil deep foundation pit supporting structure of claim 1, wherein: first mounting (8) include head rod (81) and first connecting block (82), head rod (81) are fixed in on first basis raft board (3), first connecting block (82) fixed connection in on head rod (81), second mounting (12) include second connecting rod (121) and second connecting block (122), second connecting rod (121) are fixed in on second basis raft board (4), second connecting block (122) fixed connection in on second connecting rod (121), first connecting block (82) with fixed connection between second connecting block (122).
3. The double row pile and diagonal brace combined soft soil deep foundation pit supporting structure of claim 2, wherein: first connecting rod (81) and second connecting rod (121) all set up annular boss (10) on the body of rod (9) lateral wall including being long banding body of rod (9) and along the circumference direction, be provided with the confession in first basis raft board (3) first storage tank (11) of first connecting rod (81) embedding, be provided with the confession in second basis raft board (4) second storage tank (19) of second connecting rod (121) embedding.
4. The double row pile and diagonal brace combined soft soil deep foundation pit supporting structure of claim 2, wherein: run through on first connecting block (82) and be provided with first through-hole (13), run through on second connecting block (122) and be provided with second through-hole (14), first through-hole (13) with be linked together between second through-hole (14), first connecting block (82) with be provided with bolt (15) between second connecting block (122), bolt (15) run through in proper order in first through-hole (13) and second through-hole (14), the nut butt of bolt (15) in on first connecting block (82), threaded connection has nut (16) on bolt (15), nut (16) butt in on second connecting block (122).
5. The double row pile and diagonal brace combined soft soil deep foundation pit supporting structure of claim 1, wherein: the number of the first fixing pieces (8) and the number of the second fixing pieces (12) are multiple, and the first fixing pieces (8) are fixed on the second fixing pieces (12) in a one-to-one corresponding mode.
6. A double row pile and diagonal brace combined soft soil deep foundation pit supporting structure according to claim 5, wherein: a plurality of the first fixing pieces (8) and the second fixing pieces (12) are arranged at equal intervals along the joints between the first basic raft (3) and the second basic raft (4).
7. The double row pile and diagonal brace combined soft soil deep foundation pit supporting structure of claim 1, wherein: be provided with spacing boss (17) on first basis raft board (3), be provided with the confession on second basis raft board (4) spacing recess (18) that spacing boss (17) were pegged graft.
8. A double row pile and diagonal brace combined soft soil deep foundation pit supporting structure according to claim 7, wherein: the limiting boss (17) and the limiting groove (18) are arranged in a dovetail shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020619861.9U CN212405166U (en) | 2020-04-23 | 2020-04-23 | Double-row pile and inclined strut combined soft soil deep foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020619861.9U CN212405166U (en) | 2020-04-23 | 2020-04-23 | Double-row pile and inclined strut combined soft soil deep foundation pit supporting structure |
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| Publication Number | Publication Date |
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| CN212405166U true CN212405166U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020619861.9U Active CN212405166U (en) | 2020-04-23 | 2020-04-23 | Double-row pile and inclined strut combined soft soil deep foundation pit supporting structure |
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| CN (1) | CN212405166U (en) |
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- 2020-04-23 CN CN202020619861.9U patent/CN212405166U/en active Active
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