CN108166520B - Water and soil conservation method for electric power transmission line engineering construction - Google Patents
Water and soil conservation method for electric power transmission line engineering construction Download PDFInfo
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- CN108166520B CN108166520B CN201711486480.7A CN201711486480A CN108166520B CN 108166520 B CN108166520 B CN 108166520B CN 201711486480 A CN201711486480 A CN 201711486480A CN 108166520 B CN108166520 B CN 108166520B
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- 239000002689 soil Substances 0.000 title claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 22
- 241000196324 Embryophyta Species 0.000 claims abstract description 11
- 238000009412 basement excavation Methods 0.000 claims abstract description 10
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 9
- 239000011435 rock Substances 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 24
- 239000004575 stone Substances 0.000 claims description 16
- 239000011380 pervious concrete Substances 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000000670 limiting effect Effects 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 10
- 239000010410 layer Substances 0.000 description 46
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 5
- 239000012466 permeate Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0283—Retaining or protecting walls characterised by constructional features of mixed type
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
- Cultivation Of Plants (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a water and soil conservation method for electric power transmission line engineering construction, which comprises the following steps of 1: evaluating the along-the-way environment of the power transmission line; step 2: building a pole tower foundation, and selecting any one of an excavation backfill foundation, an excavation foundation, a rock foundation, a pile foundation, a spiral anchor foundation, a sunk well foundation and a composite foundation; and step 3: and (3) water and soil conservation of the tower footing side slope: engineering measures are as follows: in order to ensure the safety of the upper slope, a drainage ditch is arranged on the slope according to the water catchment condition above the tower position and the steepness and slowness of the mountain, and a rock block slope protection or a retaining wall is adopted to protect the slope on the upper slope with poor water quality; plant measures are as follows: and (4) avoiding large trees in the construction process, and planting local grass on the constructed ground. The side slope after the tower footing is built can play the effect of keeping soil through building retaining wall to keeping soil and water, and set up the escape canal that is the contained angle setting with the side slope incline direction on the side slope and can make the effect of keeping soil and water more excellent.
Description
Technical Field
The invention relates to the field of electric power engineering construction, in particular to a water and soil conservation method for electric power transmission line engineering construction.
Background
With the continuous and rapid development of national economy, the demand of the power market is increasing day by day, but the power transmission line engineering can affect the environment, which is embodied as the influence on the ecological environment, the influence on water and soil loss, the conformity and compatibility of land occupation, line selection and site selection of a line corridor and related planning, the influence on the electromagnetic environment in operation, even the influence on landscape and the like.
The influence of the transmission line on the water and soil loss mainly comprises that the undisturbed earth surface is damaged to different degrees due to the fact that the iron tower foundation, the construction anchor pit excavation, the iron tower base surface leveling, the construction road construction and the leveling disturbance earth surface of a tension field in the engineering construction process.
Except that each tower foundation permanently occupies the soil, the power transmission line still needs to temporarily occupy partial soil in the construction process, so that partial crops and fruit trees are damaged in a short period, and the original landform and vegetation are damaged by surface excavation during the pouring of the iron tower foundation, so that water and soil loss is generated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for maintaining water and soil in the engineering construction of a power transmission line, which can reduce the loss of water and soil.
The technical purpose of the invention is realized by the following technical scheme:
a method for maintaining water and soil for electric power transmission line engineering construction comprises the following steps:
step 1: evaluating the along-the-way environment along the power transmission line, and analyzing the landform, the geological structure, the geotechnical foundation engineering geological condition, the geotechnical foundation hydrogeological condition and the temperature change along the power transmission line;
step 2: building a pole tower foundation, and selecting any one of an excavation backfill foundation, an excavation foundation, a rock foundation, a pile foundation, a spiral anchor foundation, a sunk well foundation and a composite foundation;
and step 3: and (3) water and soil conservation of the tower footing side slope:
engineering measures are as follows: in order to ensure the safety of the upper slope, a drainage ditch is arranged on the slope according to the water catchment condition above the pole tower and the steepness and slowness of the mountain, and a rock block slope protection or a retaining wall is adopted to protect the slope on the upper slope with poor water quality; in order to ensure the safety of the side slope below the tower footing, a second drainage ditch is arranged at the edge of the surface of the tower footing;
plant measures are as follows: and (4) avoiding large trees in the construction process, and planting local grass on the constructed ground.
Through the technical scheme, a proper construction scheme can be selected through the operation of environment evaluation in the step 1; selecting a proper construction mode for constructing the tower foundation in the step 2 so as to ensure that the stability of the tower foundation structure is high; the water and soil conservation in the step 3 can reduce water and soil loss caused by landslide and other phenomena at the position of the side slope; and in the plant measures, avoidance is carried out on large numbers, so that the damage to the ground surface is reduced, the ecological restoration of the construction region is facilitated, and the engineering measures are used for reducing water and soil loss in the initial stage after the construction is finished.
The invention is further configured to: when the tower foundation is built, raw soil, mature soil and waste are stacked separately and covered by a dustproof net after being stacked.
Through the technical scheme, the raw soil, the mellow soil and the waste are separately stacked, so that the raw soil, the mellow soil and the waste can be separately backfilled when the tower foundation is buried, and the soil recovery speed is increased.
The invention is further configured to: the drainage ditch on the side slope and the slope direction of the side slope form an included angle.
Through above-mentioned technical scheme, the escape canal is the effect that the structure that the contained angle set up can play certain separation soil and water with side slope incline direction, has prolonged the route that rivers passed through, has strengthened the drainage effect.
The invention is further configured to: building block stone bank protection sets up the piece stone layer in ecological bag layer top including setting up the ecological bag layer on the bank protection surface course, and the piece stone is provided with evenly distributed's opening on the layer, plants the plant on the bank protection and wears out the opening and grow.
Through above-mentioned technical scheme, the ecological bag layer can play the effect of protection soil and water, and can play additional strengthening's effect on the cubic stone layer that ecological bag top set up. And the plant of planting on the bank protection is grown from the opening part, keeps soil and water on the one hand, and on the other hand makes the plant growth even.
The invention is further configured to: the retaining wall comprises a foundation layer, the foundation layer is a permeable concrete pipeline, a notch is formed in the permeable concrete pipeline close to the upper surface, a soil layer is arranged inside the permeable concrete pipeline, a retaining wall body is built along the notch, and a stone block layer, a permeable reinforced concrete reinforcing layer, a cement blanket layer and a reinforcing layer are sequentially arranged on the retaining wall body from a tower to the back of the tower; the gaps of the masonry block layers are filled with pervious concrete layers.
Through the technical scheme, the permeable concrete pipeline arranged on the foundation layer keeps normal diffusion of moisture, and meanwhile, the concrete pipeline can increase the blocking area of water and soil, so that the effect of blocking soil is enhanced; the concrete pipeline is provided with a notch, the retaining wall arranged along the notch can enhance the water and soil retention capacity, and the retaining wall comprises a masonry block layer and has stronger structural strength; the permeable reinforced concrete layer can not only enhance the structural strength, but also allow partial water flow to pass through, thereby keeping good ecological balance; the cement blanket layer has good structural strength.
The invention is further configured to: the semi-circular arc type pipeline that is close to subbase bottom goes up the border and is provided with a plurality of evenly distributed's lug, is provided with the locating part of injecing the concrete pipe position of permeating water on the subbase, the lug is fixed in on the locating part.
Through above-mentioned technical scheme, the setting of locating part can strengthen the structural strength of concrete pipe that permeates water, and retaining wall's structural stability is high.
The invention is further configured to: the locating part sets up to be located the concrete block that permeates water the cross-section of concrete pipe both sides and be right trapezoid, and the right angle face of concrete block is close to the concrete pipe setting that permeates water.
Through above-mentioned technical scheme, concrete block can strengthen soil and water retentivity on the one hand, and on the other hand can play the position of injecing the concrete pipe that permeates water, and the retaining wall's that makes structure is more stable, and concrete block's structure sets up to right trapezoid structure, and right trapezoid structure can play the effect that bears soil, reduces soil erosion and water loss.
The invention is further configured to: the reinforcing layer is set to be a reinforced concrete layer.
Through above-mentioned technical scheme, the structural strength of reinforcing retaining wall that setting up of back up coat can be further for retaining wall is good when being used for the manger plate.
The invention is further configured to: one side of the retaining wall, which is far away from the tower footing, is provided with a soil wall, and local grass is planted on the soil wall.
Through the technical scheme, the arrangement of the local grass on the earth wall is beneficial to the recovery of the constructed soil, and the water and soil conservation capability is enhanced.
In summary, compared with the prior art, the beneficial effects of the invention are as follows:
1. the soil and water conservation of the side slope after the tower footing is built can be realized by building a retaining wall, and the effect of soil and water conservation can be better by arranging the drainage ditch which forms an included angle with the slope direction on the side slope;
2. the ecological bag layer and the stone layer which are arranged on the side slope can be matched with each other, so that the water and soil retention capacity is enhanced.
Drawings
FIG. 1 is an overall block diagram of one embodiment;
FIG. 2 is a structural diagram of the rock slope according to the first embodiment;
FIG. 3 is a structural view of the second embodiment;
fig. 4 is a structural view of a retaining wall according to the second embodiment.
Reference numerals: 1. a pole tower; 2. a drainage ditch; 3. block stone slope protection; 31. an ecological bag layer; 32. a lump stone layer; 321. an opening; 4. a retaining wall; 41. a pervious concrete pipe; 42. cutting; 43. building a stone block layer; 44. a permeable reinforced concrete reinforcing layer; 45. a cement blanket layer; 46. a reinforcement layer; 47. a bump; 48. a limiting member; 5. and (5) earth wall.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1
A method for maintaining water and soil for electric power transmission line engineering construction comprises the following steps:
step 1: evaluating the along-the-way environment along the power transmission line, and analyzing the landform, the geological structure, the geotechnical foundation engineering geological condition, the geotechnical foundation hydrogeological condition and the temperature change along the power transmission line;
step 2: building a tower 1 foundation, and selecting any one of an excavation backfill foundation, an excavation foundation, a rock foundation, a pile foundation, a spiral anchor foundation, a sunk well foundation and a composite foundation;
and step 3: and (3) water and soil conservation of the tower footing side slope:
engineering measures are as follows: in order to ensure the safety of the upper slope, a drainage ditch 2 is arranged on the slope according to the water catchment condition above the tower position and the steepness and slowness of the mountain, and a rock block protection slope 3 is adopted on the upper slope with poor water quality to protect the slope;
plant measures are as follows: and (4) avoiding large trees in the construction process, and planting local grass on the constructed ground.
When the foundation of the tower 1 is built, the raw soil, the mellow soil and the waste are stacked separately, and the raw soil, the mellow soil and the waste are covered by the dustproof net during stacking, so that the soil loss caused in rainy days is reduced.
As shown in fig. 1, the drainage ditch 2 is arranged at an angle to the slope direction of the side slope.
As shown in fig. 2, the stone block revetment 3 includes an ecological bag layer 31 disposed on the revetment surface layer, and a stone block layer 32 disposed on the ecological bag layer 31, wherein the stone block layer 32 is provided with openings 321 uniformly distributed, and plants planted on the revetment penetrate through the openings 321 to grow. The plants grown are preferably plants that are compatible with the local soil environment.
Set up good back with stone block bank protection 3, during rainwater weather, the rainwater removed along escape canal 2, and the intensity of stone layer 32 cooperation reinforcing side slope, wholly set up the harmful effects that have reduced the electric power transmission engineering and caused natural environment.
Example 2
The difference between the embodiment 2 and the embodiment 1 is that the retaining wall 4 is arranged to function when retaining the slope soil, as shown in fig. 3 and 4, when the retaining wall 4 is arranged, firstly, an installation groove is dug on the slope, then a foundation layer is built in the installation groove, wherein the foundation layer is a pervious concrete pipeline 41, a notch 42 is arranged on the pervious concrete pipeline 41 close to the upper surface, a soil layer is arranged in the pipeline, and a retaining wall body is built along the notch 321, and the retaining wall body is sequentially provided with a stone block layer 43, a pervious reinforced concrete reinforcing layer 44, a cement blanket layer 45 and a reinforcing layer 46 from the tower 1 to the position away from the tower 1; a permeable concrete layer is filled in the gap of the masonry block layer 43; the reinforcement layer 46 is provided as a reinforced concrete layer.
The lateral wall of the pervious concrete pipe 41 is provided with a plurality of uniformly distributed lugs 47, the foundation layer is provided with a limiting part 48 for limiting the position of the pervious concrete pipe 41, and the lugs 47 are fixed on the limiting part 48. The limiting members 48 are concrete blocks with right-angled trapezoidal cross sections located on both sides of the pervious concrete pipes 41, and the right-angled surfaces of the concrete blocks are arranged close to the pervious concrete pipes 41.
Retaining wall 4 deviates from column foot one side and is provided with soil wall 5, has planted local grass on the soil wall 5. Escape canal 2 is the contained angle setting with side slope incline direction, and is close to retaining wall 4 and deviates from one side and retaining wall 4 parallel arrangement of 1 base face of shaft tower.
After the retaining wall 4 is arranged, in the rain weather, the rain water moves along the drainage ditch 2, and the rain water close to the retaining wall 4 moves along the direction parallel to the retaining wall 4, so that the phenomenon of strength reduction of the retaining wall 4 caused by flushing of the rain water in front of the retaining wall 4 is reduced; meanwhile, the local grass planted in front of the retaining wall 4 can assist the recovery of the natural environment, and the adverse effect of the power transmission engineering on the natural environment is reduced.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (8)
1. A method for maintaining water and soil for electric power transmission line engineering construction is characterized by comprising the following steps: the method comprises the following steps:
step 1: evaluating the along-the-way environment along the power transmission line, and analyzing the landform, the geological structure, the geotechnical foundation engineering geological condition, the geotechnical foundation hydrogeological condition and the temperature change along the power transmission line;
step 2: building a tower (1) foundation, and selecting any one of an excavation backfill foundation, an excavation foundation, a rock foundation, a pile foundation, a spiral anchor foundation, a sunk well foundation and a composite foundation;
and step 3: and (3) water and soil conservation of the tower footing side slope:
engineering measures are as follows: in order to ensure the safety of the upward slope, a drainage ditch (2) is arranged on the upward slope according to the water catchment condition above the tower (1) and the steepness and slowness of the mountain, and a retaining wall (4) is adopted to protect the upward slope with poor soil quality;
plant measures are as follows: large trees in the construction process are avoided, and local grass is planted on the ground after construction;
the retaining wall (4) comprises a foundation layer, the foundation layer is provided with permeable concrete pipelines (41), the permeable concrete pipelines (41) are provided with notches (42) close to the upper surface, soil layers are arranged inside the permeable concrete pipelines (41), retaining wall bodies are laid along the notches (42), and the retaining wall bodies are sequentially provided with a stone block layer (43), a permeable reinforced concrete reinforcing layer (44), a cement blanket layer (45) and a reinforcing layer (46) from the tower (1) to the direction away from the tower (1); the gap of the masonry block layer (43) is filled with a permeable concrete layer.
2. The method for maintaining water and soil for electric power transmission line engineering construction according to claim 1, which is characterized in that: when the foundation of the tower (1) is built, raw soil, mature soil and waste are stacked separately and covered by a dustproof net after being stacked.
3. The method for maintaining water and soil for electric power transmission line engineering construction according to claim 1, which is characterized in that: the drainage ditch (2) on the side slope and the slope direction of the side slope form an included angle.
4. The method for maintaining water and soil for electric power transmission line engineering construction according to claim 1, which is characterized in that: the lateral wall of the pervious concrete pipeline (41) is provided with a plurality of uniformly distributed lugs (47), the foundation bed layer is provided with a limiting part (48) for limiting the position of the pervious concrete pipeline (41), and the lugs (47) are fixed on the limiting part (48).
5. The method for maintaining water and soil for electric power transmission line engineering construction according to claim 4, characterized by comprising the following steps: the limiting pieces (48) are arranged into concrete blocks with right-angled trapezoid cross sections on two sides of the pervious concrete pipelines (41), and the right-angled surfaces of the concrete blocks are arranged close to the pervious concrete pipelines (41).
6. The method for maintaining water and soil for electric power transmission line engineering construction according to claim 4, characterized by comprising the following steps: the reinforcing layer (46) is set to be a reinforced concrete layer.
7. The method for maintaining water and soil for electric power transmission line engineering construction according to claim 6, characterized by comprising the following steps: one side, deviating from the tower footing, of the retaining wall (4) is provided with a soil wall (5), and local grass is planted on the soil wall (5).
8. The method for maintaining water and soil for electric power transmission line engineering construction according to claim 6, characterized by comprising the following steps: escape canal (2) are the contained angle setting with side slope incline direction, and are close to retaining wall (4) and deviate from one side and retaining wall (4) parallel arrangement of shaft tower (1) base face.
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| CN201711486480.7A CN108166520B (en) | 2017-12-30 | 2017-12-30 | Water and soil conservation method for electric power transmission line engineering construction |
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| CN110924407A (en) * | 2019-12-04 | 2020-03-27 | 中国电建集团江西省水电工程局有限公司 | Construction Method of Zero Disturbance Soil and Water Conservation on Lower Slope |
| CN113502825B (en) * | 2021-07-30 | 2022-10-18 | 中国电建集团福建省电力勘测设计院有限公司 | Water conservation method for mountain power transmission line tower position mechanized construction |
| CN113529686B (en) * | 2021-08-20 | 2023-02-28 | 国网福建省电力有限公司电力科学研究院 | A Soil and Water Conservation System in Tower Base Area of Transmission Line |
| CN113982002B (en) * | 2021-12-06 | 2022-11-18 | 中铁二院工程集团有限责任公司 | Construction method of light side slope framework structure |
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| KR100696271B1 (en) * | 2004-02-05 | 2007-03-19 | (주)바로건설기술 | Ready-made concrete pile used for permanent cladding structure |
| CN200967963Y (en) * | 2006-11-15 | 2007-10-31 | 广东省电力设计研究院 | Digging base with baffle plate |
| CN104452729A (en) * | 2013-09-16 | 2015-03-25 | 姜丹宁 | Water and soil conservation method of electric power transmission line engineering construction |
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