CN214089933U

CN214089933U - Construction structure for passing through pipeline in pipeline river channel

Info

Publication number: CN214089933U
Application number: CN202023178808.9U
Authority: CN
Inventors: 陈晓龙; 李克虎; 秦恒浩; 王寅; 陈梅; 王亚军; 王茜; 李龙; 杨海军; 彭晓明; 余良杰; 田磊; 解织彰; 王茜丽; 张巧琳; 李智慧
Original assignee: Guizhou Natural Gas Pipeline Network Co ltd
Current assignee: Guizhou Natural Gas Pipeline Network Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-31
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to the technical field of river channel pipeline construction, in particular to a construction structure for passing through a pipeline in a pipeline river channel, and the following scheme is proposed and comprises the following steps; the cofferdam comprises a first cofferdam, a second cofferdam, a third cofferdam, a fourth cofferdam and a fifth cofferdam; a first cofferdam, a second cofferdam and a third cofferdam are sequentially arranged in the river channel from the upstream to the downstream of the river bank; one end of each of the first cofferdam, the second cofferdam and the third cofferdam is connected with one side of the river bank; a fifth cofferdam is connected between the other end of the third cofferdam and the other end of the second cofferdam; the fifth cofferdam is connected with the fourth cofferdam after extending towards the first cofferdam; the other end of the fourth cofferdam is connected to the first cofferdam; the top ends of the first cofferdam, the second cofferdam, the third cofferdam, the fourth cofferdam and the fifth cofferdam are all higher than the river by more than 1 m; the instant transportation of material can be realized, stability and bearing capacity are improved.

Description

Construction structure for passing through pipeline in pipeline river channel

Technical Field

The utility model relates to a river course pipeline construction technical field, concretely relates to pass through pipeline construction structure in pipeline river course.

Background

When natural gas or petroleum pipelines are constructed, the river is sometimes obstructed, the natural gas or petroleum pipelines cannot be constructed directly and need to pass through a river channel, and when some places with lower river water levels and narrower river channels are constructed with pipelines, pipe ditches are usually dug in the river channel for installation of the pipeline passing through, but how to construct quickly and safely is a problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a simple structure, pass through the pipeline construction structure in reasonable in design, convenient to use's the pipeline river course, can realize the instant transportation of material, improve stability and bearing capacity.

In order to achieve the above object, the utility model adopts the following technical scheme: the cofferdam comprises a first cofferdam, a second cofferdam, a third cofferdam, a fourth cofferdam and a fifth cofferdam; a first cofferdam, a second cofferdam and a third cofferdam are sequentially arranged in the river channel from the upstream to the downstream of the river bank; one end of each of the first cofferdam, the second cofferdam and the third cofferdam is connected with one side of the river bank; a fifth cofferdam is connected between the other end of the third cofferdam and the other end of the second cofferdam; the fifth cofferdam is connected with the fourth cofferdam after extending towards the first cofferdam; the other end of the fourth cofferdam is connected to the first cofferdam; the top ends of the first cofferdam, the second cofferdam, the third cofferdam, the fourth cofferdam and the fifth cofferdam are all higher than the river by more than 1 m; the length of the first cofferdam is less than that of the second cofferdam; the fifth cofferdam is parallel to the other side of the river bank and forms a diversion channel; the first cofferdam, the second cofferdam, the fourth cofferdam and the river bank form a closed trapezoidal buffer pool together; the second cofferdam, the third cofferdam, the fifth cofferdam and the river bank form a closed pipeline installation pool together; and a pipe trench is arranged in the pipeline installation pond along the width direction of the river channel.

Furthermore, a pedestrian access is arranged on the fifth cofferdam and one side of the river bank far away from the third cofferdam; and two ends of the sidewalk are respectively lapped on the river bank and the top end of the fifth cofferdam.

Furthermore, the first cofferdam, the second cofferdam, the third cofferdam, the fourth cofferdam and the fifth cofferdam are all piled up by bagged soil.

Furthermore, the cross sections of the first cofferdam, the second cofferdam, the third cofferdam, the fourth cofferdam and the fifth cofferdam are all isosceles trapezoids.

After the structure is adopted, the utility model discloses beneficial effect does: a pass through pipeline construction structures in pipeline river course, can realize the instant transportation of material, improve stability and bearing capacity, the practicality is stronger, the utility model has the advantages of simple structure sets up rationally, the cost of manufacture is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a structural view of the present invention.

Description of reference numerals:

the cofferdam comprises a first cofferdam 1, a second cofferdam 2, a third cofferdam 3, a fourth cofferdam 4, a fifth cofferdam 5, a diversion canal 6, a trapezoidal buffer pool 7, a pipeline installation pool 8, a pipe ditch 9, a pedestrian access 10 and a river channel 11.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1, the technical solution adopted by the present embodiment is: the cofferdam comprises a first cofferdam 1, a second cofferdam 2, a third cofferdam 3, a fourth cofferdam 4 and a fifth cofferdam 5; a first cofferdam 1, a second cofferdam 2 and a third cofferdam 3 are sequentially arranged in the river channel 11 from the upstream to the downstream of the river bank; one end of the first cofferdam 1, one end of the second cofferdam 2 and one end of the third cofferdam 3 are all connected with one side of the river bank; a fifth cofferdam 5 is connected between the other end of the third cofferdam 3 and the other end of the second cofferdam 2; the fifth cofferdam 5 extends towards the first cofferdam 1 and then is connected with the fourth cofferdam 4; the other end of the fourth cofferdam 4 is connected with the first cofferdam 1; the other end of the second cofferdam 2 is connected with the other end of the first cofferdam 1 and the other end of the third cofferdam 3 through a fourth cofferdam 4 and a fifth cofferdam 5 respectively, and the distances from the top ends of the first cofferdam 1, the second cofferdam 2, the third cofferdam 3, the fourth cofferdam 4 and the fifth cofferdam 5 to the river surface are more than 1 m; the length of the first cofferdam 1 is less than that of the second cofferdam 2; the fifth cofferdam 5 is parallel to the other side of the river bank and forms a diversion channel 6, and river water flows through the diversion channel 6; the first cofferdam 1, the second cofferdam 2, the fourth cofferdam 4 and the river bank form a closed trapezoidal buffer pool 7 together; the second cofferdam 2, the third cofferdam 3, the fifth cofferdam 5 and the river bank form a closed pipeline installation pool 8 together; a pipe ditch 9 is arranged in the pipeline installation pool 8 along the width direction of a river channel 11; the pipe trench 9 is used for installing a crossing pipe.

Furthermore, a pedestrian walkway 10 is arranged on one side of the fifth cofferdam 5 and the river bank far away from the third cofferdam 3; two ends of the sidewalk 10 are respectively lapped on the river bank and the top end of the fifth cofferdam 5; the pedestrian walkway 10 is arranged to facilitate the operation of constructors on the weir body and in the pipeline installation pool 8.

Further, the first cofferdam 1, the second cofferdam 2, the third cofferdam 3, the fourth cofferdam 4 and the fifth cofferdam 5 are all piled up by bagged soil.

Further, the cross sections of the first cofferdam 1, the second cofferdam 2, the third cofferdam 3, the fourth cofferdam 4 and the fifth cofferdam 5 are all isosceles trapezoids.

Principle of this embodiment: during construction, a constructor controls an excavator to excavate along the outer edge of a river bank and build a diversion channel 6, under the condition that the river water level is low, bagged soil is adopted to build a first cofferdam 1, a second cofferdam 2, a third cofferdam 3, a fourth cofferdam 4 and a fifth cofferdam 5, the width of a weir crest is 2m, the weir body slope ratio is 1:1, and the first cofferdam 1, the second cofferdam 2, the third cofferdam 3, the fourth cofferdam 4 and the fifth cofferdam 5 are all higher than the water level by 1 meter; the river depth of water is 2 meters, after the trench 9 in the pipeline installation pond 8 is dug, can continue to dig the irrigation canals and ditches deeply in diversion trench 6 below to be connected with trench 9, make things convenient for the later stage pipeline to install in trench 9 and pass from diversion trench 6 below, so that the pipeline is whole to pass river course 11, treat that the pipeline passes through after accomplishing, can tear down the cofferdam, resume form in river course 11.

After adopting above-mentioned structure, this embodiment's beneficial effect does:

through setting up first cofferdam 1, the second cofferdam 2, third cofferdam 3, fourth cofferdam 4 and fifth cofferdam 5, form trapezoidal buffer pool 7 and piping erection pond 8 with the bank, trapezoidal buffer pool 7 is located piping erection pond 8 upstream, form cushioning effect to piping erection pond 8, can prevent the washing away of upper reaches river, can be as the cistern, reduce the infiltration capacity to piping erection pond 8, the security is higher when constructor digs trench 9 in piping erection pond 8, fourth cofferdam 4 slopes to set up in the bank simultaneously, also have the effect of buffering upstream rivers, can improve the security of whole structure, convenient construction.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a pass through pipeline construction structures in pipeline river course which characterized in that: the cofferdam comprises a first cofferdam (1), a second cofferdam (2), a third cofferdam (3), a fourth cofferdam (4) and a fifth cofferdam (5); a first cofferdam (1), a second cofferdam (2) and a third cofferdam (3) are sequentially arranged in the river channel (11) from the upstream to the downstream of the river bank; one end of each of the first cofferdam (1), the second cofferdam (2) and the third cofferdam (3) is connected with one side of the river bank; a fifth cofferdam (5) is connected between the other end of the third cofferdam (3) and the other end of the second cofferdam (2); the fifth cofferdam (5) extends towards the first cofferdam (1) and then is connected with the fourth cofferdam (4); the other end of the fourth cofferdam (4) is connected to the first cofferdam (1); the distances from the top ends of the first cofferdam (1), the second cofferdam (2), the third cofferdam (3), the fourth cofferdam (4) and the fifth cofferdam (5) to the river surface are more than 1 m; the length of the first cofferdam (1) is less than that of the second cofferdam (2); the fifth cofferdam (5) is parallel to the other side of the river bank and forms a diversion canal (6); the first cofferdam (1), the second cofferdam (2), the fourth cofferdam (4) and the river bank together form a closed trapezoidal buffer pool (7); the second cofferdam (2), the third cofferdam (3), the fifth cofferdam (5) and the river bank jointly form a closed pipeline installation pool (8); a pipe ditch (9) is arranged in the pipeline installation pool (8) along the width direction of the river channel (11).

2. The construction structure for passing through the pipeline in the pipeline river according to claim 1, wherein: a pedestrian walkway (10) is arranged on one side of the fifth cofferdam (5) and the river bank far away from the third cofferdam (3); two ends of the pedestrian walkway (10) are respectively lapped on the bank and the top end of the fifth cofferdam (5).

3. The construction structure for passing through the pipeline in the pipeline river according to claim 1, wherein: the first cofferdam (1), the second cofferdam (2), the third cofferdam (3), the fourth cofferdam (4) and the fifth cofferdam (5) are all piled up by bagged soil.

4. The construction structure for passing through the pipeline in the pipeline river according to claim 1, wherein: the cross sections of the first cofferdam (1), the second cofferdam (2), the third cofferdam (3), the fourth cofferdam (4) and the fifth cofferdam (5) are isosceles trapezoids.