CN212835419U

CN212835419U - Inclined pile vertical anchor rod supporting structure for foundation pit supporting

Info

Publication number: CN212835419U
Application number: CN202021481480.5U
Authority: CN
Inventors: 周亚威
Original assignee: Guangdong Hongtang Infrastructure Engineering Co ltd
Current assignee: Guangdong Hongtang Infrastructure Engineering Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-03-30
Anticipated expiration: 2030-07-23

Abstract

The utility model relates to a foundation ditch supporting construction's field, more specifically says that it relates to a vertical stock supporting construction of batter pile for foundation ditch support, installs in the foundation ditch edge, and it includes that a plurality of is fixed to be set up in the batter pile at foundation ditch edge, the foundation ditch edge is still fixed to be provided with a plurality of and is used for the fixed block of fixed batter pile, adjacent two the joint cooperation between the fixed block is connected through the connecting piece between two adjacent fixed blocks, the fixed block is fixed in the foundation ditch edge through first fastener and second fastener. This application has the effect that leads to inclined slope protection stake pile body rupture of collapsing of restriction foundation ditch lateral wall.

Description

Inclined pile vertical anchor rod supporting structure for foundation pit supporting

Technical Field

The application relates to the field of foundation pit supporting structures, in particular to a vertical anchor rod supporting structure of an oblique pile for foundation pit supporting.

Background

At present, the foundation pit support is a retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit. The safety and reliability of the foundation pit supporting structure are ensured by the following three aspects: the inclined slope protection pile has enough embedding depth; the inclined slope protection pile has enough strength and rigidity; the anchor rod can provide sufficient anchor tension well and can reliably and effectively transmit the anchor tension to the inclined slope protection pile.

In the related art, the chinese patent with the publication number of CN203498841U discloses an inclined pile vertical anchor rod supporting structure for foundation pit supporting, which comprises inclined slope protection piles, pile top crown beams and anchor rods, wherein the inclined slope protection piles are arranged in a row at the edge of a foundation pit, the bottoms of the inclined slope protection piles extend into a soil layer under a foundation, the anchor rods comprise first anchor rods, the first anchor rods are arranged in a stable soil layer between two adjacent inclined slope protection piles, and the first anchor rods are inserted into the stable soil layer from the ground between the two adjacent inclined slope protection piles and are anchored in the stable soil layer; the pile top crown beam is rigidly connected with the top of the inclined slope protection pile, and the pile top crown beam is flexibly connected with the upper part of the first anchor rod.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the strength of the slope protection pile is insufficient (the reinforcing bars are insufficient or the concrete strength is insufficient or the pile body has quality defects), or when the rigidity of the slope protection pile is insufficient, the collapse of the side wall of the foundation pit causes the slope protection pile to deform too much, so that the pile body of the slope protection pile is broken, and the damage to workers is caused, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to restrict collapse of foundation ditch lateral wall and lead to slope protection stake pile body rupture, this application provides a vertical anchor bolt supporting construction of batter pile for excavation supporting.

The application provides a vertical stock supporting construction of batter pile for foundation ditch support adopts following technical scheme:

the utility model provides a vertical stock supporting construction of batter pile for excavation supporting installs in the foundation ditch edge, includes a plurality of batter pile and is used for the stable stratum of fixed batter pile, the foundation ditch edge is still fixed and is provided with the fixed block that a plurality of is used for fixed batter pile, adjacent two the joint cooperation between the fixed block is connected through the connecting piece between two adjacent fixed blocks, the fixed block is fixed in the foundation ditch edge through first fastener and second fastener.

Through adopting above-mentioned technical scheme, fix the fixed block simultaneously through first fastener and second fastener, strengthened the fastness of fixed block with foundation ditch edge connection to increased the fixed action of fixed block to the slope protection stake, restricted because collapse of foundation ditch lateral wall and lead to the rupture of slope protection stake pile body.

Preferably, the connecting piece is the connecting block, the connecting block includes fixed connection's first forked tail piece and second forked tail piece, first forked tail piece is kept away from the length of second forked tail piece one side is greater than first forked tail piece is close to the length of second forked tail piece one side, second forked tail piece is kept away from the length of first forked tail piece one side is greater than second forked tail piece is close to the length of first forked tail piece one side, the one end of fixed block is kept away from the lateral wall at foundation ditch edge and is seted up first dovetail, the other end of fixed block is kept away from the lateral wall at foundation ditch edge and has been seted up the second dovetail, first forked tail piece with first dovetail joint cooperation, second forked tail piece with second dovetail joint cooperation.

Through adopting above-mentioned technical scheme, the connecting block has the connection effect to two adjacent fixed blocks, has restricted two adjacent fixed blocks to take place relative displacement towards fixed block length direction and fixed block width direction.

Preferably, one end of each fixing block is fixedly provided with a positioning portion, the other end of each fixing block is provided with a positioning groove, and two adjacent fixing blocks are in clamping fit with the positioning grooves through the positioning portions.

Through adopting above-mentioned technical scheme, cooperate through location portion and constant head tank joint, restricted two adjacent fixed blocks towards the direction that is close to or keeps away from the foundation ditch edge and has taken place the skew.

Preferably, the fixed block with the shape of location portion is the cuboid, the height of location portion is the half of the height of location portion, the degree of depth of constant head tank is the half of location portion height.

Through adopting above-mentioned technical scheme, the tank bottom of constant head tank has limited two adjacent valley bottom pieces to take place to squint towards the length direction of slope protection stake to ascending supporting role in location portion.

Preferably, the first fastener is an angle steel, the angle steel comprises a first angle edge and a second angle edge which are perpendicular to each other, the first angle edge is fixedly connected with the second angle edge, the first angle edge is fixed on the edge of the foundation pit through a first bolt, and the second angle edge is fixed on the fixing block through a second bolt.

Through adopting above-mentioned technical scheme, be fixed in the foundation ditch edge with first angle limit through first bolt, be fixed in the valley piece with second angle limit through the second bolt on to be fixed in the foundation ditch edge with the fixed block on, restricted the fixed block and slided downwards under the action of gravity.

Preferably, the fixed block has seted up the half slot towards the lateral wall at foundation ditch edge, the half slot cooperates with slope protection stake joint, the fixed block is towards the lateral wall butt at foundation ditch edge on the foundation ditch edge.

Through adopting above-mentioned technical scheme, through location portion and constant head tank joint cooperation, increased the area of contact between fixed block and the slope protection stake, increased the fixed action of fixed block to the slope protection stake, also increased the convenience of staff's installation fixed block simultaneously.

Preferably, the connecting block is fixedly provided with a pulling block, and the side wall of the pulling block is provided with a pulling hole.

Through adopting above-mentioned technical scheme, when the connecting block was dismantled to needs, the staff drew into the trombone through stretching the finger in, pulled the piece through the orientation pulling of keeping away from the direction of foundation ditch lateral wall to take out first dovetail piece from first dovetail, take out second dovetail piece from the second dovetail, increased the convenience that the connecting block was dismantled to the staff.

Preferably, the second fastener is the second stock, the one end of second stock stretch into the fixed block in proper order in the stable stratum, the other end of second stock stretch out in the fixed block, the second stock stretch out in an pot head of fixed block is equipped with the second backing plate, the second stock stretch out in the one end threaded connection of second backing plate has the second nut.

Through adopting above-mentioned technical scheme, be fixed in the foundation ditch edge with the fixed block through the second stock, increased the fastness of being connected between fixed block and the foundation ditch edge, the second backing plate has increased the area of contact between second nut and the fixed block, has increased the fixed action of second nut to the fixed block, has further restricted the fixed block and has slided downwards under the action of gravity.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixing block is fixed through the first fastener and the second fastener simultaneously, so that the firmness of connection between the fixing block and the edge of the foundation pit is enhanced, the fixing effect of the fixing block on the slope protection pile is increased, and the breakage of the pile body of the slope protection pile caused by the collapse of the side wall of the foundation pit is limited;

2. the connecting block has a connecting effect on two adjacent fixed blocks, and the two adjacent fixed blocks are limited to generate relative displacement towards the length direction and the width direction of the fixed blocks;

3. the first corner edge is fixed on the edge of the foundation pit through the first bolt, and the second corner edge is fixed on the valley bottom block through the second bolt, so that the fixed block is fixed on the edge of the foundation pit, and downward sliding of the fixed block under the action of gravity is limited.

Drawings

Fig. 1 is a schematic structural view of a batter pile vertical bolting structure for foundation pit support according to an embodiment of the present application.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.

Description of reference numerals: 1. slope protection piles; 2. pile top crown beam; 3. a first anchor rod; 4. a first backing plate; 5. a first pre-set pipe fitting; 6. a first nut; 7. a fixed block; 701. a positioning part; 702. positioning a groove; 703. a semicircular groove; 704. a first dovetail groove; 705. a second dovetail groove; 8. connecting blocks; 801. a first dovetail block; 802. a second dovetail block; 9. pulling the block; 901. hole drawing; 10. angle steel; 101. a first corner edge; 102. a second corner edge; 11. a first bolt; 12. a second bolt; 13. a second anchor rod; 14. a second backing plate; 15. a second preset pipe fitting; 16. a second nut; 17. stabilizing the formation; 18. a sub-base soil layer; 19. and f, forming the edge of the foundation pit.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a vertical stock supporting construction of batter pile for foundation ditch support installs in foundation ditch edge 19. Referring to fig. 1 and 2, the vertical anchor rod supporting structure of the batter pile for foundation pit supporting comprises a plurality of batter pile 1 and a stable stratum 17 for fixing the batter pile 1, wherein the bottom of the batter pile 1 extends into a soil layer 18 under a foundation. The tops of the plurality of inclined slope protection piles 1 are fixedly connected through pile top crown beams 2, and one side, close to the foundation pit, of each pile top crown beam 2 is rigidly connected with the top of each inclined slope protection pile 1. Specifically, the lower surface of one side of the foundation pit, far away from the pile top crown beam 2, is fixedly provided with a plurality of first anchor rods 3 for fixing the pile top crown beam 2, and the pile top crown beam 2 is flexibly connected with the tops of the first anchor rods 3. Specifically, the bottom end of the first anchor rod 3 sequentially penetrates and sequentially extends into the pile top crown beam 2 and the stable stratum 17. The top of first stock 3 stretches out in pile bolck crown beam 2, and one pot head that first stock 3 stretches out in pile bolck crown beam 2 is equipped with first backing plate 4, and first backing plate 4 internal fixation is provided with first preset pipe fitting 5. The first anchor rod 3 stretches out one end of the pile top crown beam 2 and penetrates through the first preset pipe fitting 5, and the first anchor rod 3 stretches out one end of the first preset pipe fitting 5 and is in threaded connection with the first nut 6. So set up, first backing plate 4 has increased area of contact between the ground in first nut 6 and the oblique 1 outsides of slope protection stake, has increased the fixed action of first stock 3 to pile bolck crown beam 2 to the fixed action at 1 top of slope protection stake has been increased.

Referring to fig. 1 and 3, the edge 19 of the foundation pit is also fixedly provided with a plurality of fixing blocks 7 for fixing the inclined slope protection pile 1, and two adjacent fixing blocks 7 are in clamping fit with each other. Specifically, the fixed block 7 is shaped like a rectangular parallelepiped, the length direction of the fixed block 7 is the horizontal direction, the positioning portion 701 is fixedly arranged at one end of the fixed block 7, the positioning portion 701 is also shaped like a rectangular parallelepiped, and the length direction of the positioning portion 701 is the same as the length direction of the slope protection pile. The length of the positioning part 701 is half of the height of the positioning block, and the top of the positioning part 701 is flush with the top of the positioning block. The upper surface of one end of each fixing block 7, which is far away from the positioning portion 701, is provided with a positioning groove 702, the depth of each positioning groove 702 is half of the height of the positioning portion 701, and two adjacent fixing blocks 7 are in clamping fit with the positioning grooves 702 through the positioning portions 701. The side wall of the fixing block 7 facing the foundation pit edge 19 is provided with three semicircular grooves 703, and the three semicircular grooves 703 are respectively in clamping fit with three adjacent inclined slope protection piles 1. So set up, through location portion 701 and constant head tank 702 joint cooperation, increased the area of contact between fixed block 7 and the slope protection stake 1, increased fixed block 7 to slope protection stake 1 fixed action, also increased the convenience of staff installation fixed block 7 simultaneously.

With continued reference to fig. 1 and 3, two adjacent fixing blocks 7 are connected by a connecting piece, in this embodiment, the connecting piece is a connecting block 8, the connecting block 8 includes a first dovetail block 801 and a second dovetail block 802 that are integrally formed, and both the cross sections of the first dovetail block 801 and the second dovetail block 802 are trapezoidal. The length of the first dovetail block 801 far away from the second dovetail block 802 is larger than that of the first dovetail block 801 near the second dovetail block 802, and the length of the second dovetail block 802 far away from the first dovetail block 801 is larger than that of the second dovetail block 802 near the first dovetail block 801. The side wall of one end of the fixed block 7, which is far away from the edge 19 of the foundation pit, is provided with a first dovetail groove 704, the side wall of the other end of the fixed block 7, which is far away from the edge 19 of the foundation pit, is provided with a second dovetail groove 705, the first dovetail block 801 is in clamping fit with the first dovetail groove 704, and the second dovetail block 802 is in clamping fit with the second dovetail groove 705. The connecting block 8 is kept away from the lateral wall integrated into one piece of fixed block 7 and is drawn piece 9, draws the lateral wall of piece 9 and offers the trompil 901 that runs through. So set up, when needs dismantle connecting block 8, the staff through stretch into the trompil 901 with the finger in, through the orientation direction pulling piece 9 of keeping away from the foundation ditch lateral wall to take out first dovetail piece 801 from first dovetail 704, take out second dovetail piece 802 from second dovetail 705, increased the convenience that the staff dismantled connecting block 8.

With continued reference to fig. 1 and 3, the anchor block 7 is secured to the excavation edge 19 by first and second fasteners. In this embodiment, the first fastener is an angle steel 10, the angle steel 10 includes a first angle edge 101 and a second angle edge 102 that are perpendicular to each other, the first angle edge 101 and the second angle edge 102 are integrally formed, the first angle edge 101 is fixed on the foundation pit edge 19 through a first bolt 11, and the first bolt 11 penetrates through the first angle edge 101 and is in threaded connection with the foundation pit edge 19; the second corner edge 102 is fixed on the fixing block 7 by a second bolt 12, and the second bolt 12 passes through the second corner edge 102 and is in threaded connection with the fixing block 7. So set up, be fixed in foundation ditch edge 19 through first bolt 11 with first angle limit 101, be fixed in the valley piece through second bolt 12 with second angle limit 102 on to be fixed in foundation ditch edge 19 with fixed block 7 on, restricted fixed block 7 and slided downwards under the action of gravity.

With continued reference to fig. 1 and 3, in the present embodiment, the second fastening member is a second anchor rod 13, the second anchor rod 13 is disposed in an inclined manner, and the second anchor rod 13 is perpendicular to the fixing block 7. One end of the second anchor rod 13 extends into the fixed block 7 and the stable ground layer 17 in sequence. The other end of the second anchor rod 13 extends out of the fixing block 7, a second cushion plate 14 is sleeved at one end, extending out of the fixing block 7, of the second anchor rod 13, and a second preset pipe fitting 15 is fixedly arranged in the second cushion plate 14. One end of the second anchor rod 13 extending out of the fixing block 7 penetrates through the second preset pipe fitting 15, and one end of the second anchor rod 13 extending out of the second preset pipe fitting 15 is in threaded connection with a second nut 16. So set up, second backing plate 14 has increased the area of contact between second nut 16 and the fixed block 7, has increased the fixed action of second nut 16 to fixed block 7 to the stability of fixed block 7 installation has been increased.

The implementation principle of the inclined pile vertical anchor rod supporting structure for foundation pit supporting is as follows: the method comprises the following steps: measuring and positioning according to the requirements of a construction drawing; step two: the construction of the inclined slope protection pile 1 is carried out by a drilling machine, and the construction method is determined according to the pile type, soil layer condition and surrounding environment adopted by the design, such as artificial hole forming, long spiral, rotary digging and other construction methods; step three: constructing the first anchor rod 3 so that the bottom end of the first anchor rod 3 extends into the stable ground layer 17; step four: constructing a pile top crown beam 2 so that the pile top crown beam 2 is rigidly connected with the inclined slope protection pile 1 and flexibly connected with a first anchor rod 3; step five: when the inclined slope protection pile 1, the first anchor rod 3 and the pile top crown beam 2 reach the specified design strength, tensioning and locking the first anchor rod 3; step six: excavating a foundation pit, and performing subsequent tensioning on the first anchor rod 3 according to monitored data and requirements; step seven: installing the fixed block 7, constructing a second anchor rod 13, and fixing the fixed block 7; step eight: constructing a connecting block 8 to increase the firmness of the connection between two adjacent fixed blocks 7; step nine: and constructing angle steel 10, and further fixing the fixed block 7.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a vertical stock supporting construction of batter pile for foundation ditch support installs in foundation ditch edge (19), its characterized in that: including a plurality of slope protection stake (1) and stable stratum (17) that are used for fixed slope protection stake (1), foundation ditch edge (19) are still fixed to be provided with fixed block (7) that a plurality of is used for fixed slope protection stake (1), adjacent two the joint cooperation between fixed block (7), connect through the connecting piece between two adjacent fixed blocks (7), fixed block (7) are fixed in foundation ditch edge (19) through first fastener and second fastener.

2. The batter pile vertical bolting configuration for foundation pit support of claim 1, wherein: the connecting piece is connecting block (8), connecting block (8) include fixed connection's first dovetail block (801) and second dovetail block (802), first dovetail block (801) are kept away from the length of second dovetail block (802) one side is greater than first dovetail block (801) are close to the length of second dovetail block (802) one side, the length that first dovetail block (801) one side was kept away from to second dovetail block (802) is greater than second dovetail block (802) are close to the length of first dovetail block (801) one side, the lateral wall that foundation ditch edge (19) was kept away from to the one end of fixed block (7) has seted up first dovetail groove (704), the lateral wall that foundation ditch edge (19) was kept away from to the other end of fixed block (7) has seted up second dovetail groove (705), first dovetail block (801) with first dovetail groove (704) joint cooperation dovetail groove, the second dovetail block (802) is in snap fit with the second dovetail slot (705).

3. The batter pile vertical bolting configuration for foundation pit support of claim 1, wherein: one end of each fixing block (7) is fixedly provided with a positioning portion (701), the other end of each fixing block (7) is provided with a positioning groove (702), and the two adjacent fixing blocks (7) are in clamping fit with the positioning grooves (702) through the positioning portions (701).

4. The batter pile vertical bolting configuration for foundation pit support of claim 3, wherein: the fixed block (7) and the positioning part (701) are both cuboid in shape, the height of the positioning part (701) is half of that of the positioning part (701), and the depth of the positioning groove (702) is half of that of the positioning part (701).

5. The batter pile vertical bolting configuration for foundation pit support of claim 1, wherein: the first fastener is angle steel (10), the angle steel (10) include mutually perpendicular's first angle limit (101) and second angle limit (102), first angle limit (101) with second angle limit (102) fixed connection, first angle limit (101) are fixed in through first bolt (11) on foundation ditch edge (19), second angle limit (102) are fixed in through second bolt (12) on fixed block (7).

6. The batter pile vertical bolting configuration for foundation pit support of claim 1, wherein: semi-circular slot (703) have been seted up towards the lateral wall at foundation ditch edge (19) in fixed block (7), semi-circular slot (703) cooperate with slope protection stake (1) joint to one side, fixed block (7) are towards the lateral wall butt at foundation ditch edge (19) on foundation ditch edge (19).

7. The batter pile vertical bolting configuration for foundation pit support of claim 2, characterized in that: a pulling block (9) is fixedly arranged on the connecting block (8), and a pulling hole (901) is formed in the side wall of the pulling block (9).

8. The batter pile vertical bolting configuration for foundation pit support of claim 1, wherein: the second fastener is second stock (13), the one end of second stock (13) stretches into in proper order fixed block (7) in stablizing stratum (17), the other end of second stock (13) stretches out in fixed block (7), second stock (13) stretch out in the pot head of fixed block (7) is equipped with second backing plate (14), second stock (13) stretch out in the one end threaded connection of second backing plate (14) has second nut (16).