CN212336088U

CN212336088U - Pipeline slope ecological slope surface water interception retaining wall structure

Info

Publication number: CN212336088U
Application number: CN202020903128.XU
Authority: CN
Inventors: 钟卫; 姜红涛; 肖霄; 孔纪名; 唐青松; 崔云; 王仁超
Original assignee: Institute of Mountain Hazards and Environment IMHE of CAS; Sinopec Sales Co Ltd South China Branch
Current assignee: Institute of Mountain Hazards and Environment IMHE of CAS; Sinopec Sales Co Ltd South China Branch
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-12
Anticipated expiration: 2030-05-26

Abstract

The utility model provides a pipeline slope ecotype slope surface water interception retaining wall structure, which comprises a plurality of water interception retaining walls, wherein the plurality of water interception retaining walls are sequentially arranged along a pipe trench excavation line, the wall back of each water interception retaining wall faces to the direction of the slope upstream, and the wall surface has a certain slope and faces to the slope downstream direction; each intercepting and retaining wall is embedded under the original ground line and wraps the pipeline; the water intercepting retaining wall sequentially comprises a wall bottom foundation, a wall body, a wall top and two sides of the wall body which are positioned at the bottom of the pipe trench from bottom to top, and the side wings are fixedly connected with the side wings respectively and are embedded into the slope body. The utility model provides a domatic cut-off water retaining wall structure of pipeline slope ecotype mainly backfills the narrow deep type accumulation body side slope that forms after back to long slope district petroleum pipeline excavation, reduces the harm of backfill body to pipe-line system, its self stability of make full use of, realizes the stability of the backfill soil body and domatic soil erosion and water loss as far as, ensures the purpose of the safety of petroleum pipeline operation, smooth and easy oil transportation.

Description

Pipeline slope ecological slope surface water interception retaining wall structure

Technical Field

The utility model relates to a prevention and cure structure of pipeline slope soil erosion and water loss specifically is the domatic retaining wall structure that cuts off water of pipeline slope ecotype.

Background

After the pipeline in the slope section is excavated and backfilled, water and soil loss of backfilled soil along the pipe ditch direction often occurs, and even landslide and slope debris flow disasters are caused under the action of heavy rain, so that the economic development of vast mountainous areas is influenced, and the safety of an oil pipeline is threatened. The damage modes mainly include tension cracking, silting, impact, scouring, abrasion and the like, and the pipeline is often damaged by tension cracking, and the slope body is unstable.

Due to the fact that pipe ditches in the slope section are excavated, soil covering which is just backfilled is loose accumulation bodies, and pipe soil interacts with each other, the backfilled soil can slide along a pipe-soil contact surface, if slope protection is only carried out above the pipe ditches, a good slope stabilizing and soil fixing effect cannot be achieved, disasters such as landslide and debris flow are prone to occurring under the action of dead weight or rainfall, and damage to pipelines, optical cables and the like is caused.

SUMMERY OF THE UTILITY MODEL

To the technical problem, an object of the utility model is to provide a pipeline slope ecotype is domatic cuts off water retaining wall structure guarantees the stability of backfill soil body as far as, prevents domatic soil erosion and water loss, reduces the effort between the pipe soil, guarantees the long-term security of petroleum pipeline operation phase.

The specific technical scheme is as follows:

the pipeline slope ecological slope surface water interception retaining wall structure comprises a plurality of water interception retaining walls, wherein the plurality of water interception retaining walls are sequentially arranged along a pipe trench excavation line, the wall back of each water interception retaining wall faces the slope upstream direction, and the wall surface has a certain slope and faces the slope downstream direction; each intercepting and retaining wall is embedded under the original ground line and wraps the pipeline;

the water intercepting retaining wall sequentially comprises a wall bottom foundation, a wall body, a wall top and two sides of the wall body which are positioned at the bottom of the pipe trench from bottom to top, and the side wings are fixedly connected with the side wings respectively and are embedded into the slope body.

The side wings are embedded into the slope body along the direction vertical to the pipe trench and are built into an arc shape.

And backfilling soil between the adjacent water interception retaining walls, and spraying and planting grass.

The utility model provides a domatic cut-off water retaining wall structure of pipeline slope ecotype mainly backfills the narrow deep type accumulation body side slope that forms after back to long slope district petroleum pipeline excavation, reduces the harm of backfill body to pipe-line system, its self stability of make full use of, realizes the stability of the backfill soil body and domatic soil erosion and water loss as far as, ensures the purpose of the safety of petroleum pipeline operation, smooth and easy oil transportation.

Drawings

Fig. 1 is a schematic elevation view of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention.

Detailed Description

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

As shown in fig. 1 and 2, the pipeline slope ecological slope surface water interception retaining wall structure includes a plurality of water interception retaining walls 10, the plurality of water interception retaining walls 10 are sequentially arranged along a pipe trench excavation line 7, the wall back of the water interception retaining wall 10 faces the slope upstream direction, and the wall surface has a certain slope and faces the slope downstream direction; each intercepting retaining wall 10 is embedded below the original ground line 8 and wraps the pipeline 9;

the water intercepting retaining wall 10 sequentially comprises a wall bottom foundation 1, a wall body 3, a wall item 2 and two sides of the wall body 3 which are positioned at the bottom of the pipe trench from bottom to top and are respectively and fixedly connected with side wings 4, and the side wings 4 are embedded into a slope body; the T-shaped structure formed by the side wings 4 and the wall body 3. The side wings 4 are respectively embedded into the original slope body in the pipeline excavation operation zone and are slightly in a certain radian,

soil is backfilled between the adjacent water interception retaining walls 10, and grass 6 is sprayed and planted.

After a pipe ditch is excavated, the position of a water intercepting retaining wall 10 is determined according to the length of a slope at a certain interval, a wall bottom foundation 1 is embedded below a pipe ditch excavation line 7, a wall body 3 is built upwards along the excavation line 7 to complete building of the part of the wall body 3 below a pipeline 9, after the pipeline 9 is welded and protected and an optical cable is connected, protection is performed at the contact part of the wall body 3 and the pipeline 9 according to the specification, then the building of the wall body 3 is continued, after the building of the wall bodies 3 on all slopes is completed and maintained, the pipe ditch is backfilled, after the backfilling is completed, a wall item 2 is built, the construction of two side wings 4 is completed, and the side wings 4 are embedded into the two sides of the wall body 3 along the direction vertical to the pipe ditch and built into an arc shape. After the wall construction is finished, proper grass seeds are selected according to local geological environment conditions, and grass planting 6 is carried out on the backfill between the adjacent water interception retaining walls 10.

The ecological slope surface water interception retaining wall 10 structure of the pipeline slope is built in a slope section laid by the pipeline, and the position of the water interception retaining wall 10 is checked and calculated according to the landform characteristics of the slope and the bearing capacity of the anti-slip, anti-tilt and foundation. The water interception retaining wall 10 is made of mortar block stone or rubble concrete materials, and the contact part of the water interception retaining wall 10 and an oil pipeline is protected and a certain space is reserved. The foundation 1 of the wall bottom is generally 2-3 m, the wall top 2 is 3-8 m, the height of the intercepting retaining wall 10 is 1.2-2.5 m, the length of the embedded slope body of the two side wings 4 is 0.5-0.8 m, and the distance between the adjacent intercepting retaining walls 10 along the slope is 10-15 m.

Claims

1. The ecological slope surface water interception retaining wall structure with the pipeline slope is characterized by comprising a plurality of water interception retaining walls (10), wherein the plurality of water interception retaining walls (10) are sequentially arranged along a pipe trench excavation line (7), the wall back of each water interception retaining wall (10) faces to the upstream direction of the slope, and the wall surface has a certain slope and faces to the downstream direction of the slope; each water-intercepting retaining wall (10) is embedded below the original ground line (8) and wraps the pipeline (9);

the water-intercepting retaining wall (10) sequentially comprises a wall bottom foundation (1), a wall body (3) and a wall top (2) which are positioned at the bottom of the pipe trench from bottom to top;

soil is backfilled between the adjacent water interception retaining walls (10), and grass planting (6) is sprayed and sowed.

2. The pipeline slope ecotype slope surface water interception retaining wall structure according to claim 1, wherein both sides of the wall body (3) are respectively fixedly connected with a side wing (4), and the side wings (4) are embedded in the slope body.

3. The pipeline slope ecotype slope surface water interception retaining wall structure according to claim 2, wherein said side wings (4) are embedded in the slope body along the direction perpendicular to the pipe trench and are laid in an arc shape.