CN201296918Y - Wharf shore-connecting structure - Google Patents

Abstract

The utility model relates to a wharf dock structure. It includes a pile wall formed by a plurality of foundation piles closely arranged to block the rear filling, and also includes inclined top piles, support piles and caps connected to the rear land area, and the pile walls, support piles and inclined top piles are respectively connected with the caps, The inclined top pile obliquely supports the cap. This new type of wharf dock structure can replace the soil retaining cofferdam formed by the land area, and can block the influence of foundation deformation caused by the high fill behind the soft soil foundation on the wharf structure. The land area behind the dock structure can be constructed simultaneously with the wharf structure , greatly improving the construction speed of the formation of land areas, and creating better conditions for the smooth development of follow-up projects.

Description

Wharf dock structure

technical field

The utility model belongs to the field of ports and water conservancy construction projects, in particular to a building structure design suitable for a large full-scale wharf, in particular to a wharf docking structure.

Background technique

High-piled piers are suitable for construction on soft soil foundations. For the plan layout of the full hall wharf, the connection structure between the wharf structure and the bank slope is very important. Its main function is to retain soil and ensure the stability of the bank slope to ensure the normal operation of the wharf. Traditional shore structures can be classified into three categories: sheet pile structures, slope-type throw-fill structures, and gravity-type retaining structures. Among them, the sheet pile structure is a commonly used retaining revetment structure, but its horizontal stiffness is small, and the structure deforms greatly under the action of high fill on soft soil foundation. With the development of wharf construction in the direction of deep water and large-scale, for the full-scale large-scale wharf built on land with high backfill on deep soft soil foundation, this traditional docking structure can no longer be fully adapted. What kind of docking structure can be adopted? The effect of subsidence and horizontal deformation on wharf structure caused by adapting to high backfill soil has attracted more and more attention from the port industry. To this end, a new type of shore structure is developed, which better solves the impact of foundation deformation on the use of wharf structures under the action of high backfill soil for large full-height high-piled wharves.

Utility model content

The technical problem to be solved by the utility model is to provide a docking structure suitable for a large-scale full hall high-pile wharf. The effects of soil foundation settlement and horizontal deformation on wharf structures.

The utility model adopts the following technical solutions:

A wharf dock structure, including a pile wall formed by a plurality of foundation piles closely arranged to block the rear filling, and also includes inclined top piles, support piles and a cap connecting the rear land area, the pile wall, support piles and inclined top piles They are respectively connected with caps, and the inclined top piles obliquely support the caps.

Preferably, the support piles are supported at the rear end of the cap, the pile walls are supported at the middle of the cap, and the inclined top piles are supported at the front end of the cap.

Preferably, there are multiple inclined top piles and they are arranged at equal intervals; there are multiple support piles and they are arranged at equal intervals.

Preferably, the inclined roof piles, support piles, pile walls and caps are consolidated.

Preferably, the platform is a cast-in-place concrete platform.

The utility model is a platform cap structure, and the densely arranged foundation piles form a pile wall to act as a partition, preventing the deformation of the foundation generated by the back filling from acting on the wharf. The inclined top piles, support piles and concrete cap form a support system, which enhances the horizontal rigidity, greatly reduces the deformation of the structure, and improves the safety of the structure compared with the usual sheet pile shore structure. This new type of wharf dock structure can replace the retaining cofferdam formed on the land, and can block the impact of foundation deformation caused by the high fill in the rear on the wharf structure, eliminating the disadvantages of other traditional dock structure forms due to the fast loading speed at the rear. In this way, the construction can be carried out simultaneously with the wharf structure after landing, which greatly improves the construction speed of the formation of the land area and creates better conditions for the smooth development of subsequent projects.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the shore structure of the present invention.

Fig. 2 is a schematic diagram of the pile position shown by overlooking the cap structure of the utility model.

in,

1. Sand pile processing area 6. Cast-in-place concrete cap

2. Bagged sand inner prism 7. Support pile

3. Dredging sand 8. Inclined top pile

4. Prismatic block stone 9. Pile wall (close-packed foundation piles)

5. Cast-in-place retaining wall

Detailed ways

As shown in the figure, the utility model is composed of inclined roof piles 8, pile walls 9, supporting piles 7 and cast-in-place concrete caps 6. The cast-in-place concrete cap 6 is positioned between the front wharf and the rear land area. The tops of the inclined top pile 8 , the pile wall 9 and the support pile 7 are all fixedly connected with the cast-in-place concrete cap 6 . The pile wall 9 is formed by a plurality of closely arranged foundation piles, which are used to block the backfill. There are also many inclined top piles 8 and supporting piles 7, which are respectively located at the front end and the rear end of the cast-in-place concrete cap 6. The pile wall 9 is located in the middle of the cap, and the inclined top piles 8 are supported obliquely. Both the inclined top piles 8 and the supporting piles 7 are arranged at equal intervals, as shown in FIG. 2 . It can be seen that the structural cross-section shape of the present utility model is a "bench" shape, as shown in Fig. 1 .

Since the shore structure involved in the utility model is a cap structure, the pile walls formed by densely packed foundation piles act as partitions, preventing the foundation deformation generated by the backfill from acting on the wharf. The inclined top piles, support piles and concrete cap form a support system, which enhances the horizontal rigidity, greatly reduces the deformation of the structure, and improves the safety of the structure compared with the usual sheet pile shore structure. This new type of wharf dock structure can replace the retaining cofferdam formed on the land, and can block the impact of foundation deformation caused by the high fill in the rear on the wharf structure, eliminating the disadvantages of other traditional dock structure forms due to the fast loading speed at the rear. In this way, the construction can be carried out simultaneously with the wharf structure after landing, which greatly improves the construction speed of the formation of the land area and creates better conditions for the smooth development of subsequent projects. It is suitable for the construction of a full hall large wharf formed by high backfill soil on a deep soft soil foundation.

The calculation model of the shore structure can adopt a separation model, that is, the structure can be separated from the soil, and the backfill soil acts on the structure with earth pressure. The interaction between the pile and the foundation can be calculated according to the linear elastic foundation example method; it can also be calculated according to the overall The model is used for calculation, that is, the coordination between the structure and the soil is considered in the calculation. Support piles should be designed to take negative friction into account. The design of the "bench type" shore structure can connect the inclined top piles and support piles with the cast-in-place concrete cap according to the fixed connection design.

Because the construction of the shore structure can be implemented simultaneously with the wharf structure. For silt soft soil foundation, it can be implemented in the following order: first carry out foundation reinforcement construction piling recast cap Construction of the riprap prism under monitoring conditions in the rear Inverted layer structure backfill.

During the construction of the shore structure, the following points should also be paid attention to: 1) If the plastic board (or sand well) drainage consolidation method is adopted for the soft soil foundation at the rear, the drainage board (or sand well) should be built after the horizontal drainage layer is formed. ), to prevent the connection between the horizontal drainage layer and the drainage board (or sand well) from being cut off due to the back-silting layer during the construction process. 2) Strictly control the backfill rate, including each backfill height, backfill time and backfill sequence. Especially for the drainage consolidation method to strengthen the foundation, the backfilling rate should be controlled according to the corresponding observation data. 3) According to the requirements, control the dredging range in the stable water area in front of the wharf and the interval time between each dredging and control the allowable super-depth. 4) Do a good job in the settlement and displacement observation of the whole construction process and the corresponding tests required for soft foundation reinforcement.

Claims (5)

1. A wharf docking structure, comprising a pile wall formed by a plurality of foundation piles closely arranged to block the back filling, characterized in that: it also includes a sloped top pile, a support pile and a cap that connects the rear land area, the pile wall, The support piles and the inclined top piles are respectively connected to the cap, and the inclined top piles obliquely support the cap. 2. The wharf landing structure according to claim 1, characterized in that: the support piles are supported at the rear end of the cap, the pile walls are supported at the middle of the cap, and the inclined top piles are supported at the front end of the cap. 3. The wharf landing structure according to claim 2, characterized in that: there are a plurality of inclined top piles arranged at equal intervals; there are a plurality of support piles arranged at equal intervals. 4. The wharf landing structure according to claim 3, characterized in that: the inclined roof piles, support piles, pile walls and caps are consolidated. 5. The wharf structure according to any one of claims 1-4, characterized in that the cap is a cast-in-place concrete cap.

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