1. The deep water pile foundation mud circulation construction system is characterized by comprising:

the upper part of the first pile foundation steel casing is provided with a first connecting port;

the second pile foundation steel casing is arranged adjacent to the first pile foundation steel casing, and a second connecting port is formed in one side, opposite to the first connecting port, of the upper part of the second pile foundation steel casing;

a first port of the connecting pipe is communicated with the first connecting port, a second port of the connecting pipe is communicated with the second connecting port, and a slurry filtering device is arranged in the connecting pipe;

and the mud pump assembly is used for alternately pumping mud between the first pile foundation steel casing and the second pile foundation steel casing and comprises a mud pump body and a pumping pipe connected with the mud pump body.

2. The deep water pile foundation mud circulation construction system of claim 1, wherein the connecting pipe is provided with an opening for inserting the mud filter device, and the section profile of the mud filter device is matched with the section profile of the connecting pipe.

3. A deepwater pile foundation mud circulation construction method is characterized by comprising the following steps:

a connecting pipe is communicated between the upper part of the first pile foundation steel casing and the upper part of the second pile foundation steel casing after installation is finished, and a slurry filtering device is arranged in the connecting pipe;

placing a mud pump body in the first pile foundation steel casing, and communicating a pumping pipe connected with the mud pump body to the second pile foundation steel casing;

starting to construct a first pile foundation at the first pile foundation steel casing, starting the slurry pump body, enabling slurry for constructing the first pile foundation to flow through the connecting pipe, filtering the slurry through the slurry filtering device, and then flowing into the second pile foundation steel casing, taking the second pile foundation steel casing as a circulating pool, and pumping the slurry in the second pile foundation steel casing into the first pile foundation steel casing through the pumping pipe by the slurry pump body;

and when the first pile foundation construction is finished, closing the mud pump body.

4. The deep water pile foundation mud circulation construction method of claim 3, characterized in that:

after the first pile foundation is constructed and initially set, placing the mud pump body in the second pile foundation steel casing, and communicating the pumping pipe to the first pile foundation steel casing;

starting to construct a second pile foundation at the second pile foundation steel casing, starting the slurry pump body, enabling slurry for constructing the second pile foundation to flow through the connecting pipe, filtering the slurry through the slurry filtering device, and then flowing into the first pile foundation steel casing, taking the first pile foundation steel casing as a circulating pool, and pumping the slurry in the first pile foundation steel casing into the second pile foundation steel casing through the pumping pipe by the slurry pump body;

and when the second pile foundation construction is finished, closing the mud pump body.

5. The deep water pile foundation mud circulation construction method of claim 3 or 4, characterized in that:

an opening for inserting the slurry filtering device is formed in the connecting pipe, and the section profile of the slurry filtering device is matched with the section profile of the connecting pipe;

and in the process of opening the mud pump body, observing the mud condition in the mud filter device, temporarily closing the mud pump body when the mud reaches the designed maximum amount, taking the mud filter device out of the connecting pipe, pouring the mud, inserting the mud filter device into the connecting pipe from the opening, and then opening the mud pump body again.

Background

At present, slurry circulation in deepwater pile foundation construction is generally carried out by adopting a slurry tank, and the slurry tank needs to be welded by steel plates and put into water, so that the operation is difficult, the occupied space is large, the materials are wasted, and the transportation is troublesome, time-consuming and labor-consuming.

Disclosure of Invention

In order to solve the problems, the invention provides a deep water pile foundation mud circulation construction system and a circulation construction method, which can save construction space, improve construction efficiency, save construction materials and ensure construction quality.

The invention is realized by the following scheme: a deepwater pile foundation mud circulation construction system comprises:

the upper part of the first pile foundation steel casing is provided with a first connecting port;

the second pile foundation steel casing is arranged adjacent to the first pile foundation steel casing, and a second connecting port is formed in one side, opposite to the first connecting port, of the upper part of the second pile foundation steel casing;

a first port of the connecting pipe is communicated with the first connecting port, a second port of the connecting pipe is communicated with the second connecting port, and a slurry filtering device is arranged in the connecting pipe;

and the mud pump assembly is used for alternately pumping mud between the first pile foundation steel casing and the second pile foundation steel casing and comprises a mud pump body and a pumping pipe connected with the mud pump body.

According to the invention, the connecting pipe and the slurry pump assembly are arranged between two adjacent pile foundation steel casing pipes to form the slurry circulation construction system, so that one pile foundation steel casing pipe can be used as a circulation tank in the construction process, the problem of mud tank transportation and the problem of quality control in deep water pile foundation construction are solved, the construction space and the construction materials are saved, the construction efficiency is improved, the construction quality is ensured, and the problem of mud tank transportation is reduced.

The deepwater pile foundation mud circulation construction system is further improved in that the connecting pipe is provided with an opening for inserting the mud filtering device, and the section profile of the mud filtering device is matched with the section profile of the connecting pipe.

The invention also provides a deepwater pile foundation mud circulation construction method, which comprises the following steps:

a connecting pipe is communicated between the upper part of the first pile foundation steel casing and the upper part of the second pile foundation steel casing after installation is finished, and a slurry filtering device is arranged in the connecting pipe;

placing a mud pump body in the first pile foundation steel casing, and communicating a pumping pipe connected with the mud pump body to the second pile foundation steel casing;

starting to construct a first pile foundation at the first pile foundation steel casing, starting the slurry pump body, enabling slurry for constructing the first pile foundation to flow through the connecting pipe, filtering the slurry through the slurry filtering device, and then flowing into the second pile foundation steel casing, taking the second pile foundation steel casing as a circulating pool, and pumping the slurry in the second pile foundation steel casing into the first pile foundation steel casing through the pumping pipe by the slurry pump body;

and when the first pile foundation construction is finished, closing the mud pump body.

The further improvement of the deepwater pile foundation mud circulation construction method is that in the process of constructing the first pile foundation:

after the first pile foundation is constructed and initially set, placing the mud pump body in the second pile foundation steel casing, and communicating the pumping pipe to the first pile foundation steel casing;

starting to construct a second pile foundation at the second pile foundation steel casing, starting the slurry pump body, enabling slurry for constructing the second pile foundation to flow through the connecting pipe, filtering the slurry through the slurry filtering device, and then flowing into the first pile foundation steel casing, taking the first pile foundation steel casing as a circulating pool, and pumping the slurry in the first pile foundation steel casing into the second pile foundation steel casing through the pumping pipe by the slurry pump body;

and when the second pile foundation construction is finished, closing the mud pump body.

The deepwater pile foundation mud circulation construction method is further improved as follows:

an opening for inserting the slurry filtering device is formed in the connecting pipe, and the section profile of the slurry filtering device is matched with the section profile of the connecting pipe;

and in the process of opening the mud pump body, observing the mud condition in the mud filter device, temporarily closing the mud pump body when the mud reaches the designed maximum amount, taking the mud filter device out of the connecting pipe, pouring the mud, inserting the mud filter device into the connecting pipe from the opening, and then opening the mud pump body again.

Drawings

Fig. 1 is a schematic diagram showing a connection state of connecting pipes in a deepwater pile foundation mud circulation construction system.

Fig. 2 shows a schematic diagram of the whole structure of the deepwater pile foundation mud circulation construction system.

Detailed Description

In order to solve the problems that a mud circulation system is difficult to operate, occupies space, wastes materials, is troublesome to transport and wastes time and labor in the traditional deep water pile foundation construction, the invention provides a deep water pile foundation mud circulation construction system and a circulation construction method, which can save construction space, improve construction efficiency, save construction materials and ensure construction quality.

The following describes the deep water pile foundation mud circulation construction system and the circulation construction method with specific embodiments in combination with the accompanying drawings.

Referring to fig. 1 and 2, a deepwater pile foundation mud circulation construction system includes:

the pile foundation comprises a first pile foundation steel casing 1, wherein a first connecting port is formed in the upper part of the first pile foundation steel casing 1;

a second pile foundation steel casing 2 arranged adjacent to the first pile foundation steel casing 1, wherein a second connecting port is formed in one side, opposite to the first connecting port, of the upper part of the second pile foundation steel casing 2;

a first port of the connecting pipe 3 is communicated with the first connecting port, a second port of the connecting pipe 3 is communicated with the second connecting port, and a slurry filtering device 4 is arranged in the connecting pipe 3;

a mud pump assembly for alternately pumping mud between the first pile steel casing 1 and the second pile steel casing 2, the mud pump assembly comprising a mud pump body 51, a pumping pipe 52 connected to the mud pump body 51.

Specifically, an operation platform 7 is set up on the upper portions of the first pile foundation steel casing 1 and the second pile foundation steel casing 2, the mud pump body 51 is erected on the operation platform 7 through the tripod 6, so that the mud pump body 51 is hung from the top opening of the first pile foundation steel casing 1 (when constructing the second pile foundation) or the top opening of the second pile foundation steel casing 2 (when constructing the first pile foundation), and the pumping port of the pumping pipe 52 extends into the corresponding second pile foundation steel casing 2 (when constructing the second pile foundation) or the first pile foundation steel casing 1 (when constructing the first pile foundation), and further forms a mud circulation path with the connecting pipe 3 (as shown in fig. 2). In addition, it should be noted that the height of this first connector is higher than the top design elevation of first pile foundation in this first pile foundation steel casing 1, and the height of this second connector is higher than the top design elevation of second pile foundation in this second pile foundation steel casing 2. Through the highly injectd of this first connector and second connector, when not influencing the construction of first pile foundation and second pile foundation, can also be in this first pile foundation or this second pile foundation construction back that finishes, the upper portion space in corresponding first pile foundation steel casing 1 or the second pile foundation steel casing still can be used as the circulation pond.

This embodiment makes first pile foundation steel protect a section of thick bamboo 1 and second pile foundation steel protect a section of thick bamboo 2, each other is the circulation pond each other and uses each other in the work progress through set up connecting pipe 3 and mud pump assembly and form mud circulation construction system between first pile foundation steel protects a section of thick bamboo 1 and second pile foundation steel and protect a section of thick bamboo 2, has solved the deep water pile foundation construction mud pit and has had bad luck difficult problem and quality control difficult problem each other, has saved construction space and construction material, has improved the efficiency of construction, has ensured construction quality, has reduced the mud pit and has had bad luck difficult problem.

As a preferred embodiment, the connecting pipe 3 is provided with an opening for inserting the slurry filtering device 4, and the profile of the slurry filtering device 4 is matched with the profile of the connecting pipe 3. Through the adaptation structure of above-mentioned mud filter equipment 4 and connecting pipe 3, the mud of this mud circulation construction system of being convenient for filters and the mud sediment clearance, has further ensured construction quality.

The invention also provides a deep water pile foundation mud circulation construction method, which is shown in the figures 1 and 2 and comprises the following steps:

a connecting pipe 3 is communicated between the upper part of the first pile foundation steel casing 1 and the upper part of the second pile foundation steel casing 2 after installation is finished, and a slurry filtering device 4 is arranged in the connecting pipe 3;

placing a mud pump body 51 in the first pile foundation steel casing 1, and communicating a pumping pipe 52 connected with the mud pump body 51 to the second pile foundation steel casing 2;

starting to construct a first pile foundation at the first pile foundation steel casing 1, starting the slurry pump body 51, allowing slurry for constructing the first pile foundation to flow through the connecting pipe 3, filtering the slurry through the slurry filtering device 4, and then flowing into the second pile foundation steel casing 2, taking the second pile foundation steel casing 2 as a circulating pool, and pumping the slurry in the second pile foundation steel casing 2 into the first pile foundation steel casing 1 through the pumping pipe 52 by the slurry pump body 51;

when the first pile foundation is constructed, the mud pump body 51 is closed.

As a preferred embodiment, after the first pile foundation is constructed and initially set, the slurry pump body 51 is placed in the second pile foundation steel casing 2, and the pumping pipe 52 is communicated to the first pile foundation steel casing 1;

starting to construct a second pile foundation at the second pile foundation steel casing 2, starting the slurry pump body 51, allowing slurry for constructing the second pile foundation to flow through the connecting pipe 3, filtering the slurry through the slurry filtering device 4 and then flowing into the first pile foundation steel casing 1, taking the first pile foundation steel casing 1 as a circulating pool, and pumping the slurry in the first pile foundation steel casing 1 into the second pile foundation steel casing 2 through the pumping pipe 52 by the slurry pump body 51;

when the second pile foundation is constructed, the mud pump body 51 is closed.

Through adjusting the position of this slush pump body 51 and this pump pipe 52, form reverse mud circulation, and then realize filtration and the circulation to second pile foundation work in-process mud, further saved construction space and construction material, improved the efficiency of construction, reduced the mud pit and had bad luck the difficult problem.

Certainly, to pile group construction field, the pile foundation quantity that needs to be under construction is more than two, can be with the form that continues, set up this mud circulation construction system between per two adjacent pile foundation steel casings, that is to say, when the first pile foundation of construction, regard as the circulation pond with second pile foundation steel casing and use, when the second pile foundation of construction, regard as the circulation pond with third pile foundation steel casing and use, analogize in proper order, when being under construction to last pile foundation, regard as the circulation pond with its former pile foundation steel casing to use, through reverse mud circulation, realize the mud cycle work to the construction of last pile foundation.

As a preferred embodiment, in the process of constructing the first pile foundation:

an opening for inserting the slurry filtering device 4 is formed in the connecting pipe 3, and the section profile of the slurry filtering device 4 is matched with the section profile of the connecting pipe 3;

when the mud pump body 51 is opened, the mud condition in the mud filter device 4 is observed, when the mud reaches the designed maximum amount, the mud pump body 51 is temporarily closed, the mud filter device 4 is taken out from the connecting pipe 3, after the mud is poured, the mud filter device 4 is inserted into the connecting pipe 3 from the opening, and then the mud pump body 51 is opened again.

Through the connection form of detachably pegging graft in this connecting pipe 3 of mud filter equipment 4, be convenient for in time clear up the mud sediment that produces among the mud circulation process, further ensured construction quality.

The mud circulation construction method saves construction space and construction materials by flexibly using the mud circulation construction system, improves construction efficiency and reduces the problem of mud pit transportation.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.