CN219621693U - Rock-socketed pile type caisson wharf structure - Google Patents

Abstract

The utility model discloses a pile-embedded caisson wharf structure, which comprises one or more caissons arranged on a foundation bed, wherein a rock soil layer is arranged below the foundation bed, a plurality of positioning holes are uniformly formed in the bottom of the caisson, and a pile embedded in one positioning hole is arranged; one end of each rock-socketed pile extends into the rock soil layer, the other end of each rock-socketed pile penetrates through the positioning hole and extends into the caisson, and a positioning mechanism is arranged in the caisson corresponding to each rock-socketed pile; and a filling layer is arranged in the caisson and is used for enabling each rock-socketed pile and the caisson to form a whole. According to the utility model, the caisson and the rock-socketed pile bear the load together, so that the adaptability to the foundation and the stability of the caisson are improved.

Description

Rock-socketed pile type caisson wharf structure

Technical Field

The utility model relates to the field of caisson wharfs. More particularly, the present utility model relates to a rock-fill pile-type caisson dock structure.

Background

With the rapid development of domestic and foreign economy, ships have a large development trend in the transportation process of amphibious transportation. With the increase of cargo demand, the pressure facing ports is gradually increased, and the construction scale is continuously expanding. The existing wharf structure is mainly divided into two main types, namely pile foundation structure and gravity type caisson structure. The gravity type caisson wharf is suitable for areas with better foundations, has strong adaptability to the overload of the wharf floor and the change of loading and unloading processes, has the advantages of small steel consumption, good engineering durability and the like, and is more applied in the current coastal areas. However, the gravity type caisson wharf has higher requirements on foundation bearing capacity, and problems of too fast foundation trough dredging, wharf main body settlement and the like can occur in the construction process, and along with the increase of wharf water depth, the manufacturing cost of the caisson wharf also rises sharply. In order to solve the above problems, some corresponding countermeasures are adopted in the construction process in the prior art, for example, aiming at the problem of dredging the foundation trench, dredging is usually arranged first and then foundation trench excavation is carried out when a construction scheme is manufactured. When the bearing capacity of the surface layer foundation does not meet the requirement, the method of replacing the foundation, the composite foundation and the like is adopted for processing. The problem of foundation treatment of a rock-soil bearing stratum is not fundamentally solved, the project construction period and cost are further increased along with the processes of foundation trench excavation, leveling and the like, ideal economic benefits cannot be obtained, advantages of large engineering quantity, short construction period and the like are not obvious enough, and the increasing rapid construction requirement of engineering is difficult to meet.

Disclosure of Invention

It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.

To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a caisson dock structure of a rock-socketed pile type, comprising one or more caissons arranged on a foundation bed, wherein a rock soil layer is arranged below the foundation bed, a plurality of positioning holes are uniformly formed in the bottom of the caisson, and a rock-socketed pile is arranged in one of the positioning holes; one end of each rock-socketed pile extends into the rock soil layer, the other end of each rock-socketed pile penetrates through the positioning hole and extends into the caisson, and a positioning mechanism is arranged in the caisson corresponding to each rock-socketed pile; and a filling layer is arranged in the caisson and is used for enabling each rock-socketed pile and the caisson to form a whole.

Preferably, the positioning mechanism comprises a steel casing, the bottom of the steel casing passes through the positioning hole and is inserted into the rock soil layer, and the height of the top of the steel casing extending out of the bottom of the caisson is not less than 3m.

Preferably, the positioning mechanism further comprises an annular positioning plate and rib plates; the annular locating plate is fixedly sleeved on the periphery of the steel pile casing, and the bottom surface of the annular locating plate is attached to the inner bottom surface of the caisson; the rib plates are arranged in a plurality, the rib plates are arranged at intervals along the periphery of the steel pile casing, and the rib plates are respectively fixedly connected with the steel pile casing and the annular positioning plate.

Preferably, the caisson comprises a bottom plate, a well wall, a top cover and an inner partition wall, wherein the bottom plate, the well wall and the top cover are surrounded to form a box body with a hollow inside; the inner partition wall is arranged in the box body and divides the interior of the box body into a plurality of cabin grids, and one cabin grid is internally provided with one rock-socketed pile and one positioning mechanism correspondingly.

Preferably, the depth of each of the rock-socketed piles extending into the rock-soil layer is different.

Preferably, reinforcing ribs are embedded in the rock-socketed pile, and the reinforcing ribs are I-shaped steel.

Preferably, when a plurality of caissons are provided, the top surface elevation of a plurality of caissons is the same.

The utility model at least comprises the following beneficial effects:

1. according to the embedded pile type caisson wharf structure, each embedded pile is embedded in the rock-soil bearing layer, the caisson is conveniently placed by excavation and leveling treatment on the surface foundation, underwater blasting is not needed, the safety performance of construction can be effectively guaranteed, and the workload and cost of foundation treatment are reduced.

2. According to the embedded pile type caisson wharf structure, the caisson and the embedded pile bear the load together, and compared with the prior art, stability and durability of a foundation are better. Even if the connection between a certain embedded rock pile and the bottom plate of the caisson is broken, the other embedded rock piles jointly ensure the connection strength of the lower foundation, so that the stability and the reliability of the structure of the embedded rock pile type caisson wharf are better exerted.

3. Compared with the traditional gravity type caisson structure, the embedded pile type caisson wharf structure provided by the utility model can reduce the height of the caisson, reduce the overturning moment born by the whole structure, not only enhance the anti-overturning performance and the anti-sliding performance, but also reduce the manufacturing cost of the caisson and effectively improve the economic benefit.

4. The positioning mechanism is used for positioning the rock-socketed pile, can effectively prevent the position of the rock-socketed pile from shifting in the grouting process, and enhances the connection strength of the lower integral structure.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic view of a pile-on-pile caisson dock according to an embodiment of the present utility model;

FIG. 2 is a top view of the caisson according to the above embodiment of the present utility model;

fig. 3 is a partial enlarged view at a of fig. 1.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.

As shown in fig. 1 to 3, the utility model provides a pile-embedded caisson wharf structure, which comprises one or more caissons 1 arranged on a foundation bed, wherein a rock soil layer 2 is arranged below the foundation bed, a plurality of positioning holes are uniformly formed in the bottom of the caisson 1, and a pile embedded rock 3 is arranged in one positioning hole; one end of each rock-socketed pile 3 extends into the rock-soil layer 2, the other end of each rock-socketed pile penetrates through the corresponding positioning hole and extends into the caisson 1, and a positioning mechanism 4 is arranged in the caisson 1 corresponding to each rock-socketed pile 3; a filling layer 5 is arranged in the caisson 1, and the filling layer 5 is used for enabling each rock-socketed pile 3 and the caisson 1 to form a whole.

In this technical scheme, caisson 1 the positioning mechanism 4 is prefabricated part, the reservation when caisson 1 prefabricates the locating hole to the concrete surface that is in the water level change district is done anticorrosive treatment and is improved the durability of concrete. Each of the positioning mechanisms 4 is first installed at each of the positioning holes, and then the caisson is moved and seated to an installation position on the foundation bed. And then constructing the rock-socketed pile 3 at each positioning hole, drilling the lower part of the rock stratum to the designed depth by adopting the caisson 1 as a drilling pile construction platform and adopting a drilling machine. And (3) lowering a reinforcement cage after hole forming, pouring concrete, and forming the rock-socketed pile 3 after the strength of the concrete reaches the requirement, so as to realize the transmission of vertical load. And then filling solid filler or pouring concrete into the caisson 1 to form the filling layer 5, and connecting the caisson 1 and each rock-socketed pile 3 into a whole after tamping. Preferably, the height of the filled layer 5 may cover the positioning means 4. The filling layer 4 can effectively prevent the relative displacement between each rock-socketed pile 3 and the caisson 1, so that the bearing performance of the foundation is better exerted. The embedded pile type caisson quay structure also comprises conventional quay superstructure such as breast walls 6 and fender members 7.

In another embodiment, the positioning mechanism 4 comprises a steel casing 41, the bottom of the steel casing 41 passes through the positioning hole and is inserted into the rock soil layer, and the height of the top of the steel casing 41 extending out of the bottom of the caisson 1 is not less than 3m.

Further, the positioning mechanism 4 further comprises an annular positioning plate 43 and a rib plate 42; the annular locating plate 43 is fixedly sleeved on the periphery of the steel pile casing 41, and the bottom surface is attached to the inner bottom surface of the caisson 1; the rib plates 42 are arranged in a plurality, the rib plates 42 are arranged at intervals along the periphery of the steel pile casing 41, and the rib plates 42 are fixedly connected with the steel pile casing 41 and the annular positioning plate 42 respectively. The steel pile casing 41 is just clamped at the designed elevation through the annular locating plate 43, namely, the depth of the rock-socketed pile extending into the rock-soil layer is guaranteed to meet the design requirement, and the height of the top of the steel pile casing 41 extending out of the bottom of the caisson 1 is not less than 3m. And the annular locating plate 43 not only can increase the contact area between the caisson 1 and the steel casing 41, but also can facilitate the locating between the caisson 1 and the drill hole. During construction of the rock-socketed pile 3, the annular locating plates 43 are fixedly connected with the inner bottom surface of the caisson 1, drilling construction is performed, a reinforcement cage is placed down to a designed depth along the steel pile casing 41 after hole forming, and concrete pouring is performed.

In another embodiment, the caisson 1 comprises a bottom plate 11, a well wall 12, a top cover 14 and an inner partition wall 13, wherein the bottom plate 11, the well wall 12 and the top cover 14 are surrounded to form a box body with a hollow inside; the inner partition wall 13 is arranged in the box body and divides the interior of the box body into a plurality of cabins, and one of the cabins is correspondingly provided with one rock-socketed pile 3 and one positioning mechanism 4. When the caisson 1 is prefabricated, the bottom of each compartment is provided with a positioning hole for installing the positioning mechanism 4 and constructing the rock-socketed piles 3, so that the rock-socketed piles 3 are uniformly distributed in the caisson 1.

In another embodiment, each of the rock-socketed piles 3 extends into the rock-soil layer 2 to a different depth. The rock-socketed piles 3 extend into the rock-soil layer 2 to be differentially arranged according to the geological condition of the bottom of the caisson 1 and the stress condition of the caisson 1. Preferably, the total vertical bearing capacity of the rock-socketed pile foundation system formed by the rock-socketed piles 3 accounts for 50% -60% of the vertical load of the whole wharf.

In another embodiment, reinforcing ribs are embedded in the embedded rock pile 3, and the reinforcing ribs are i-shaped steel so as to further increase the strength of the embedded rock pile 3.

In another embodiment, the number of the caissons 1 is one or more according to a wharf shoreline, when the caissons 1 are provided with a plurality of caissons, the bottom elevation of each caisson 1 can be differently set according to the fluctuation condition of the base rocks of the seabed, and the top elevations of the caissons 1 are the same, so that underwater reef explosion is effectively reduced. And a plurality of caissons 1 are connected by connecting pieces.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (7)

1. The embedded pile type caisson wharf structure comprises one or more caissons arranged on a foundation bed, wherein a rock soil layer is arranged below the foundation bed, and the embedded pile type caisson wharf structure is characterized in that a plurality of positioning holes are uniformly formed in the bottom of the caisson, and one embedded pile is arranged in one positioning hole; one end of each rock-socketed pile extends into the rock soil layer, the other end of each rock-socketed pile penetrates through the positioning hole and extends into the caisson, and a positioning mechanism is arranged in the caisson corresponding to each rock-socketed pile; and a filling layer is arranged in the caisson and is used for enabling each rock-socketed pile and the caisson to form a whole.

2. The embedded pile type caisson terminal structure as set forth in claim 1, wherein the positioning mechanism comprises a steel casing, the bottom of the steel casing passes through the positioning hole and is inserted into the rock soil layer, and the height of the top of the steel casing protruding out of the bottom of the caisson is not less than 3m.

3. The embedded pile type caisson pier structure according to claim 2, wherein the positioning mechanism further comprises annular positioning plates and rib plates; the annular locating plate is fixedly sleeved on the periphery of the steel pile casing, and the bottom surface of the annular locating plate is attached to the inner bottom surface of the caisson; the rib plates are arranged in a plurality, the rib plates are arranged at intervals along the periphery of the steel pile casing, and the rib plates are respectively fixedly connected with the steel pile casing and the annular positioning plate.

4. The rock-fill pile type caisson pier structure according to claim 1, wherein the caisson comprises a bottom plate, a well wall, a top cover and an inner partition wall, wherein the bottom plate, the well wall and the top cover are surrounded to form a box body with a hollow inside; the inner partition wall is arranged in the box body and divides the interior of the box body into a plurality of cabin grids, and one cabin grid is internally provided with one rock-socketed pile and one positioning mechanism correspondingly.

5. The embedded pile type caisson pier structure according to claim 1, wherein the depth of each embedded pile extending into the rock-soil layer is different.

6. The embedded pile type caisson pier structure according to claim 1, wherein reinforcing ribs are embedded in the embedded pile, and the reinforcing ribs are I-shaped steel.

7. A rock-fill pile type caisson terminal structure as set forth in claim 1, wherein when a plurality of said caissons are provided, the elevation of the top surfaces of a plurality of said caissons is the same.