CN208857762U - Semicircular caisson and pile foundation combined breakwater - Google Patents

Abstract

The utility model relates to a kind of semi-circular caissons and pile foundation combined type breakwater, including caisson and pile foundation, the caisson is semi-circular caisson made of being poured based on combined steel formwork, semicircular arch ring including bottom plate and on bottom plate is provided with floor and the vertical plate for supporting semicircular arch ring between semicircular arch ring and bottom plate；It is embedded with the casing for forming pile foundation mounting hole in vertical plate and floor intersection, pile foundation mounting hole squeezes into ground with for pile foundation vertically；Aperture is set on semicircular arch ring.It is short and reusable that the utility model is suitable for soft soil foundation and deep water conditions and having the advantages that rubble-mound foundation of constructing that convenient, no setting is required, Potential Working Time For Operation At Sea.

Description

Semi-circular caisson and pile foundation combined type breakwater

Technical field

The utility model relates to a kind of caissons and pile foundation combined type breakwater.

Background technique

Semicircle breakwater (such as: a kind of semicircle breakwater, publication number CN206736844U) is a kind of adaptation weak soil The Novel breakwater structure of base, is usually made of prefabricated semi-circular member or semi-circular caisson and rubble-mound foundation.With it is traditional straight Vertical breakwater, sloping breakwater are compared, semicircle breakwater have from heavy and light, easy construction, it is reusable, beautiful, The advantages that foundation stress is evenly distributed, suffered wave force is small and antiskid and stability against overturning are good.

When building, semi-circular caisson need to be placed on rubble-mound foundation existing semicircle breakwater.On soft soil foundation When construction, needs first to excavate ground or reinforcing soft foundation, then semi-circular caisson is placed on rubble-mound foundation.Have four among these A main problem, first is that the building stones needed are more since it is desired that building rubble-mound foundation, exploitation of stone can destroy ecological environment；Second is that throwing The setting of ground mass bed not only increases cost, while causing added burden to foundation bearing capacity, is easy that breakwater is made to occur to sink It falls into and destroys；Third is that the stability against sliding of existing semicircle breakwater is by between semi-circular caisson bottom and rubble-mound foundation top Frictional force, when the wave is high for the depth of water, in order to maintain the stability against sliding of breakwater, needs to fill in semi-circular caisson come what is provided More sand material, increase cost and duration, while the increase of dead load, can threaten foundation bearing capacity, factor of safety against sliding Increase but reduce the vertical bearing capacity of this structure, to limit application of this structure in deep water breakwater；Four It is to increase the construction time because there is riprap work.

Utility model content

The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art, provide a kind of suitable for soft soil foundation and deep water Condition, simple and reasonable, construction is convenient, project cost is low, environmental-friendly and reusable new type of deep-water breakwater.This The breakwater of utility model is a kind of semi-circular caisson and pile foundation novel combined type breakwater, can to avoid using rubble-mound foundation, The setting of pile foundation not only increases this new structural stability against sliding, while increasing its vertical bearing capacity.Technical side Case is as follows:

A kind of semi-circular caisson and pile foundation combined type breakwater, including caisson and pile foundation, which is characterized in that the caisson For semi-circular caisson made of being poured based on combined steel formwork, semicircular arch ring including bottom plate and on bottom plate, in semicircle Floor and the vertical plate for supporting semicircular arch ring are provided between shape arch ring and bottom plate；It is pre- in vertical plate and floor intersection It is embedded with the casing for forming pile foundation mounting hole, pile foundation mounting hole squeezes into ground with for pile foundation vertically；It is set on semicircular arch ring Set aperture.

In the utility model, semi-circular caisson can keep off wave, baffle, earth-retaining, and semicircular in shape can reduce wave force, and make ground Base stress distribution is more uniform；Its base areas is larger, can expand the contact area with ground, reduces foundation stress；Floor and vertical Plate can reinforcement structure globality and rigidity, while its intersection prefabricated can form vertical pile foundation installation by service sleeve Hole；The effect of pile foundation mounting hole is to squeeze into ground vertically for foundation pile；The effect of pile foundation is that the bearing capacity for enhancing ground and structure resist Sliding and stability against overturning.

Detailed description of the invention

(a) and (b) of Fig. 1 is respectively the sectional view and outside drawing of single group semi-circular caisson and pile foundation combined type breakwater

Fig. 2 single group semi-circular caisson and pile foundation combined type breakwater three-view diagram

Specific embodiment

Fig. 1 is single group semi-circular caisson and pile foundation combined type breakwater outside drawing；Fig. 2 is single group semi-circular caisson and pile foundation Combined type breakwater structure figure.In Fig. 2,1 is vertical plate, and 2 be semicircular arch ring, and 3 be floor, and 4 be bottom plate, and 5 be pile foundation, wherein half On round arch ring can appropriate aperture, as the back-up sand hole of semi-circular caisson, at the same semi-circular caisson sink when, aperture can be passed through Water filling sits bottom convenient for semi-circular caisson.

The main working procedure of semi-circular caisson and pile foundation combined type breakwater is as follows: first with combined steel formwork, Precasting yard pours semi-circular caisson by the sequence layering substep of bottom plate 4, vertical plate 1 and floor 3, semicircular arch ring 2, wherein in entirety When prefabricated vertical plate 1 and floor 3,3 intersection service sleeve of vertical plate 1 and floor, to form the mounting hole of pile foundation 5, and prefabricated pile Base 5, pile foundation 5 preferentially select prestress high intensity concrete stake (PHC)；That then uses for reference caisson goes out fortune and setting method, will spell The semi-circular caisson installed integrally goes out to transport, transportation by driving to job location；Then past through the tapping of semicircular arch ring in job location Semi-circular caisson is sat bottom in designated position by water filling in caisson；There are the semi-circular caisson of filling ballast requirement, component for design Filling in case should be carried out after installation in time, filling should symmetrically, uniformly should immediately block pack hole after the completion of filling, and It is ensured that blocking tight, secured；Pile foundation 5 is finally placed in pile foundation mounting hole, is squeezed into pile foundation 5 using equipment such as pile driving barges specified Depth；Cement slurry is injected between pile foundation 5 and the gap of pile foundation installation hole wall, pile foundation and semi-circular caisson is made to be linked to be entirety.

Breakwater engineering is gradually to deep-water developments at present；In addition, the seashore of many offshore areas and seabed all there is Soft Soil Layer, several meters to tens meters of thickness are differed, such as the active Bohai Sea Gulf of China's economic development, entrance of Changjiang River, the mouth of the Zhujiang River and Zhejiang, Fujian All widely distributed the soft soil foundation in coastal area.Semi-circular caisson and pile foundation combined type breakwater can be perfectly suitable for badly Wave and Soft Soil build breakwater using the new structure without excavating ground or carrying out ground on soft foundation Reinforce, only ground need to simply be flattened, can be applicable in soft soil foundation and deep water conditions, structure it is simple, it is easy for construction, Project cost is low, is a kind of excellent new type of deep-water structure, is with a wide range of applications in silt coast.

Claims (1)

1. a semicircular caisson and pile foundation combined breakwater, comprise caisson and pile foundation, it is characterized in that, described caisson is the semicircular caisson casted based on composite steel formwork, comprises base plate and the caisson that is positioned on base plate. The semicircular arch ring is provided with a rib plate and a vertical plate used to support the semicircular arch ring between the semicircular arch ring and the bottom plate; the intersection part of the vertical plate and the rib plate is pre-buried to form a pile foundation installation hole The casing of the pile foundation is used for the pile foundation to be driven into the foundation vertically; the semicircular arch ring is provided with openings.