CN213233521U

CN213233521U - Caisson and pile combined foundation for reinforcing foundation

Info

Publication number: CN213233521U
Application number: CN202021650229.7U
Authority: CN
Inventors: 麦小君
Original assignee: Guangdong Jintuo Construction Engineering Co ltd
Current assignee: Guangdong Jintuo Construction Engineering Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-05-18
Anticipated expiration: 2030-08-10

Abstract

The application relates to the technical field of constructional engineering, in particular to a caisson and pile combined foundation for reinforcing a foundation, which comprises a caisson and a foundation pile, wherein the caisson is a semicircular caisson poured based on a combined steel template, the caisson comprises a base plate and an arch ring, the arch ring is fixed on the upper surface of the base plate, a vertically arranged supporting plate is arranged on the upper surface of the base plate, the upper surface of the supporting plate is fixedly connected with the inner surface of the arch ring, an inserting groove is formed in the upper surface of the supporting plate, the inserting groove penetrates through the upper surface of the arch ring and the lower surface of the base plate, the foundation pile is in inserting fit with the inserting groove, and a pile cap is arranged at the top of the foundation pile; the caisson and pile combined foundation for reinforcing the foundation can indirectly reduce the construction cost and the construction period for building the semicircular breakwater.

Description

Caisson and pile combined foundation for reinforcing foundation

Technical Field

The application relates to the field of constructional engineering, in particular to a caisson and pile combined foundation for reinforcing a foundation.

Background

Along with the expansion of human activities, natural and excellent shoreline resources are less and less, harbor workers building in a wide sea area with poor wave conditions becomes a necessary development trend, particularly the wave force borne by the first defensive line breakwater for protecting the safety of harbor areas is increased, and once the first defensive line breakwater is damaged, serious consequences can be brought to the safety of human life and property. Compared with the traditional breakwater, the semicircular breakwater has the advantages of good anti-sliding stability, economical section of the breakwater body, capability of being prefabricated in batches, convenience in installation and the like, and is widely applied to protection of inland waterway and foreign sea harbor areas.

In the related art, when a conventional semicircular breakwater is constructed, a caisson is required to be placed on a riprap foundation. When construction is carried out on a soft foundation, the foundation needs to be excavated or the soft foundation needs to be reinforced, and then the caisson is placed on the riprap foundation bed.

With respect to the above-described related art, the inventors consider that the following problems exist: the anti-skid stability of the semicircular breakwater is provided by means of the friction force between the bottom of the caisson and the top of the riprap foundation bed, when the water depth is large, more sand needs to be filled in the caisson in order to maintain the anti-skid stability of the breakwater, the cost is increased, the construction period is prolonged, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to reduce the construction cost and the time limit for a project of building semicircular breakwater, the application provides a caisson and a stake combined foundation of reinforcing ground.

The application provides a caisson and stake combination basis of consolidating ground adopts following technical scheme:

the utility model provides a caisson and stake combination basis of consolidating ground, includes caisson and foundation pile, the caisson is the semi-circular caisson that pours and form based on the combination steel form, the caisson includes base plate and arch ring, the arch ring is fixed in the base plate upper surface, the upper surface of base plate is provided with the backup pad of vertical setting, the upper surface of backup pad and the internal surface fixed connection of arch ring, the inserting groove has been seted up to the upper surface of backup pad, the inserting groove runs through the upper surface of arch ring and the lower surface of base plate, the foundation pile cooperates with the inserting groove is pegged graft, the top of foundation pile is provided with the pile cap.

Through adopting above-mentioned technical scheme, when needs built semi-circular breakwater, place the caisson on soft soil foundation, insert the foundation pile to the inserting groove in, strike the pile cap through equipment such as pile hammer to make the foundation pile insert to the soft soil foundation along the length direction of inserting groove in, and then be fixed in the soft soil foundation with the caisson, therefore reduced the operation of the interior sand filling material of caisson, thereby indirectly reduced the construction cost and the time limit for a project of building semi-circular breakwater.

Preferably, the outer wall of the foundation pile is provided with a plurality of guide rods along the vertical direction, the groove wall of the insertion groove is provided with a guide groove along the vertical direction, the guide groove penetrates through the upper surface of the arch ring and the lower surface of the base plate, and the guide rods are in insertion fit with the guide grooves.

Through adopting above-mentioned technical scheme, the cooperation is pegged graft with the guide way to play the guide effect to the foundation pile, and then reduce the foundation pile and in the in-process of driving into soft soil foundation, the condition emergence of skew takes place for the position of foundation pile.

Preferably, the outer wall of foundation pile is provided with the multiunit barb along vertical direction, the cell wall of inserting groove is provided with the groove of stepping down that a plurality of confession barbs passed along vertical direction, the groove of stepping down runs through the upper surface of arch ring and the lower surface of base plate.

Through adopting above-mentioned technical scheme, squeeze into the foundation pile to soft soil foundation after, the barb can increase the pulling force of foundation pile to soft soil foundation, and then indirectly improved the stability that foundation pile and soft soil foundation are connected.

Preferably, the end of the foundation pile is sharp.

Through adopting above-mentioned technical scheme, the tip of foundation pile is sharp-pointed setting to in the foundation pile inserts to soft soil foundation.

Preferably, the lower surface of the base plate is provided with a plurality of embedded piles.

Through adopting above-mentioned technical scheme, insert to the surface of soft soil foundation through the pre-buried stake to realize the preliminary location of caisson, and then improved the convenience of driving into the foundation pile.

Preferably, reinforcing plates are vertically fixed to two sides of the supporting plate, and the two reinforcing plates are fixedly connected with the inner wall of the arch ring and the upper surface of the base plate respectively.

Through adopting above-mentioned technical scheme, the reinforcing plate is in order to strengthen the backup pad to the support intensity of arch ring, has further strengthened the whole support intensity of caisson.

Preferably, the upper surface of the pile cap is provided with a placing groove, and a knocking block is arranged in the placing groove.

By adopting the technical scheme, the pile hammer directly collides with the knocking block in the piling process; the impact of the pile hammer on the pile cap can be relieved by the knocking block, so that the damage to the pile cap is reduced.

Preferably, the outer wall circumference of knocking the piece is provided with spacing sand grip, the inner wall circumference of standing groove is provided with the spacing groove, spacing sand grip and spacing groove joint cooperation.

Through adopting above-mentioned technical scheme, spacing sand grip and spacing groove joint cooperation to the condition that the piece is deviate from the standing groove is strikeed in the reduction takes place.

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

1. when the semicircular breakwater needs to be built, the caisson is placed on a soft soil foundation, the foundation pile is inserted into the insertion groove, the pile cap is knocked by equipment such as a pile hammer, so that the foundation pile is inserted into the soft soil foundation along the length direction of the insertion groove, and the caisson is fixed in the soft soil foundation, therefore, the operation of filling sand materials into the caisson is reduced, and the construction cost and the construction period for building the semicircular breakwater are indirectly reduced;

2. the embedded piles are inserted into the surface of the soft soil foundation to realize the primary positioning of the caisson, so that the convenience of driving the foundation piles is improved;

3. the reinforcing plate is used for reinforcing the supporting strength of the supporting plate to the arch ring, and the integral supporting strength of the caisson is further enhanced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is an assembly schematic of an embodiment of the present application.

Description of reference numerals: 1. caisson; 11. a substrate; 111. pre-burying the pile; 12. an arch ring; 2. foundation piles; 21. a guide bar; 22. a barb; 23. pile caps; 231. a placement groove; 2311. a limiting groove; 3. a support plate; 31. inserting grooves; 311. a guide groove; 312. a yielding groove; 4. a reinforcing plate; 5. knocking the block; 51. limiting convex strips.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses caisson and pile combined foundation for reinforcing foundation. Referring to fig. 1 and 2, a caisson and pile combined foundation for reinforcing a foundation includes a caisson 1 and a foundation pile 2, in this embodiment, the caisson 1 is a semicircular caisson formed by pouring a combined steel formwork, the caisson 1 includes a base plate 11 and an arch ring 12 which are horizontally arranged, the arch ring 12 is fixed on the upper surface of the base plate 11, and the cross section of the arch ring 12 is arc-shaped. The lower surface fixedly connected with of base plate 11 is many pre-buried stake 111, and the quantity of pre-buried stake 111 sets up to four, and four pre-buried stake 111 are the matrix distribution in four corners of base plate 11, insert to the surface of soft soil foundation through pre-buried stake 111 to realize caisson 1's preliminary location, and then improved the convenience of driving into foundation pile 2. In addition, a vertically disposed support plate 3 is fixedly connected to the upper surface of the base plate 11. Both sides of backup pad 3 all the vertical fixation have reinforcing plate 4, and the cross-section of reinforcing plate 4 is fan-shaped setting, and two reinforcing plates 4 are connected with the upper surface fixed of the inner wall of arch ring 12 and base plate 11 respectively. In the present embodiment, the base plate 11, the arch ring 12, the support plate 3, and the reinforcing plate 4 are integrally molded.

In addition, the upper surface of backup pad 3 is seted up bayonet socket 31, and bayonet socket 31 runs through the upper surface of arch ring 12 and the lower surface of base plate 11, and foundation pile 2 is the sharp-pointed setting with bayonet socket 31 grafting cooperation, simultaneously, the tip of foundation pile 2. The outer wall of foundation pile 2 is provided with a plurality of guide bars 21 along the vertical direction, and in this embodiment, the number of guide bars 21 all sets up to two. Meanwhile, a guide groove 311 is formed in the groove wall of the insertion groove 31 in the vertical direction, the guide groove 311 penetrates through the upper surface of the arch ring 12 and the lower surface of the substrate 11, and the guide rod 21 is in insertion fit with the guide groove 311.

In addition, foundation pile 2's outer wall is provided with multiunit barb 22 along vertical direction, and in this embodiment, the quantity of barb 22 sets up to two sets of, and the quantity of a set of barb 22 sets up to three, and two sets of barb 22 symmetries set up in foundation pile 2's outer wall both sides. Meanwhile, the groove wall of the insertion groove 31 is provided with a plurality of abdicating grooves 312 for the barbs 22 to pass through along the vertical direction, in this embodiment, the number of the abdicating grooves 312 is set to two, the positions of the two abdicating grooves 312 correspond to the positions of the two sets of barbs 22, and the abdicating grooves 312 penetrate through the upper surface of the arch ring 12 and the lower surface of the base plate 11.

In addition, the top fixedly connected with pile cap 23 of foundation pile 2, pile cap 23 and inserting groove cooperation of sliding, standing groove 231 is seted up to the upper surface of pile cap 23, is provided with in the standing groove 231 and strikes piece 5, strikes piece 5 and is higher than the notch of standing groove 231. Specifically, the outer wall circumference of the knocking block 5 is provided with a limiting convex strip 51, the inner wall circumference of the placing groove 231 is provided with a limiting groove 2311, and the limiting convex strip 51 is in clamping fit with the limiting groove 2311. In the piling process, the pile hammer directly collides with the knocking block 5; the striking block 5 can slow down the impact of the pile hammer on the pile cap 23 to reduce the damage of the pile cap 23. Meanwhile, the limiting convex strips 51 are matched with the limiting grooves 2311 in a clamping mode, so that the situation that the knocking block 5 is separated from the placing groove 231 is reduced.

The implementation principle of the caisson and pile combined foundation of the reinforced foundation is as follows: when the semicircular breakwater needs to be built, the caisson 1 is placed on a soft soil foundation, the foundation pile 2 is inserted into the insertion groove 31, the pile cap 23 is knocked by equipment such as a pile hammer, so that the foundation pile 2 is inserted into the soft soil foundation along the length direction of the insertion groove 31, and the caisson 1 is fixed in the soft soil foundation, therefore, the operation of filling sand in the caisson 1 is reduced, and the construction cost and the construction period for building the semicircular breakwater are indirectly reduced.

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 caisson and stake combination basis of reinforcement ground which characterized in that: including caisson (1) and foundation pile (2), caisson (1) is semi-circular caisson (1) for pouring and form based on combination steel form, caisson (1) includes base plate (11) and hunch circle (12), hunch circle (12) are fixed in base plate (11) upper surface, the upper surface of base plate (11) is provided with vertical backup pad (3) that sets up, the upper surface of backup pad (3) and the internal surface fixed connection of hunch circle (12), inserting groove (31) have been seted up to the upper surface of backup pad (3), inserting groove (31) run through the upper surface of hunch circle (12) and the lower surface of base plate (11), foundation pile (2) and inserting groove (31) are pegged graft and are cooperated, the top of foundation pile (2) is provided with pile cap (23).

2. The caisson and pile combination foundation for reinforcing a foundation as claimed in claim 1, wherein: the outer wall of foundation pile (2) is provided with many guide bars (21) along vertical direction, guide way (311) have been seted up along vertical direction to the cell wall of inserting groove (31), guide way (311) run through the upper surface of arch ring (12) and the lower surface of base plate (11), guide bar (21) and guide way (311) are pegged graft the cooperation.

3. The caisson and pile combination foundation for reinforcing a foundation as claimed in claim 1, wherein: the outer wall of foundation pile (2) is provided with multiunit barb (22) along vertical direction, the cell wall of inserting groove (31) is provided with a plurality of groove of stepping down (312) that supply barb (22) to pass along vertical direction, the lower surface of upper surface and base plate (11) of arch ring (12) is run through in groove of stepping down (312).

4. The caisson and pile combination foundation for reinforcing a foundation as claimed in claim 1, wherein: the end part of the foundation pile (2) is arranged in a sharp manner.

5. The caisson and pile combination foundation for reinforcing a foundation as claimed in claim 1, wherein: the lower surface of the base plate (11) is provided with a plurality of embedded piles (111).

6. The caisson and pile combination foundation for reinforcing a foundation as claimed in claim 1, wherein: reinforcing plates (4) are vertically fixed on two sides of the supporting plate (3), and the two reinforcing plates (4) are fixedly connected with the inner wall of the arch ring (12) and the upper surface of the base plate (11) respectively.

7. The caisson and pile combination foundation for reinforcing a foundation as claimed in claim 1, wherein: a placing groove (231) is formed in the upper surface of the pile cap (23), and a knocking block (5) is arranged in the placing groove (231).

8. The caisson and pile combination foundation for consolidating foundation of claim 7, wherein: the outer wall circumference of the knocking block (5) is provided with a limiting convex strip (51), the inner wall circumference of the placing groove (231) is provided with a limiting groove (2311), and the limiting convex strip (51) is in clamping fit with the limiting groove (2311).