CN111119154A - River valley type debris flow ditch waste slag land-making structure and construction method - Google Patents
River valley type debris flow ditch waste slag land-making structure and construction method Download PDFInfo
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- CN111119154A CN111119154A CN201911064045.4A CN201911064045A CN111119154A CN 111119154 A CN111119154 A CN 111119154A CN 201911064045 A CN201911064045 A CN 201911064045A CN 111119154 A CN111119154 A CN 111119154A
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- 239000002893 slag Substances 0.000 title claims abstract description 53
- 239000002699 waste material Substances 0.000 title claims abstract description 39
- 238000010276 construction Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- 239000011150 reinforced concrete Substances 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000758 substrate Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance 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
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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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
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
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- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
A valley type debris flow ditch slag-discarding and land-making structure is used for effectively consuming engineering waste slag, reducing the risk of destroying ecological environment by the waste slag, forming engineering construction land and serving economic construction requirements. The structure includes: the base seepage and drainage layer is arranged at the bottom of the valley type debris flow ditch; longitudinal water seepage and drainage blind ditches arranged at the two transverse sides of the base water seepage and drainage layer; discarding slag and filling the slag above the base seepage and drainage layer; the drainage guide channel and the drainage ditch are respectively arranged at two sides of the main shaft of the waste slag body; and the anti-skid reinforcing pile is arranged in the downstream side slope of the slag discarding body.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering, in particular to a valley type debris flow channel waste slag land building and construction method.
Technical Field
In order to serve the economic construction of the Tibetan region and meet the national strategic requirements, the planning and construction of the railway and the highway entering the Tibetan region are regularly and disorderly implemented. However, under the control of the complicated and steep landform of the deposit passage, a large number of long and large tunnels and deep-dug cutting projects inevitably occur in the line selection process of railways and highways, and the projects are easy to generate a large amount of waste slag during construction, and even one line project can generate slag as much as hundreds of millions of parts. The ecological environment of the deposit channel is sensitive, the fragile ecological environment is seriously damaged by randomly abandoning earthwork, the national environmental protection requirement cannot be met, and therefore, the disposal of the abandoned slag is a great problem in front of engineering builders.
On the other hand, geological disasters of the deposit channel are various, and debris flow is one of the geological disasters, and besides the problem of disaster prevention and reduction, the debris flow gully is still to be further researched and developed. In a large number of debris flow ditches in an access channel, how to search a debris flow ditch land building structure consuming waste slag is one of the problems worth thinking by a large number of engineering designers, and the land building structure not only needs to consume a large number of engineering waste slag to form engineering construction land and serve the economic construction of places, but also has the capacity of reducing the disaster-causing risk of engineering.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a valley type debris flow channel waste slag land-making structure, so that engineering waste slag is effectively consumed, the risk of damaging ecological environment by the waste slag is reduced, engineering construction land is formed, and economic construction requirements are met.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention relates to a valley type debris flow ditch slag-discarding and land-making structure, which is characterized by comprising the following components: the base seepage and drainage layer is arranged at the bottom of the valley type debris flow ditch; longitudinal water seepage and drainage blind ditches arranged at the two transverse sides of the base water seepage and drainage layer; discarding slag and filling the slag above the base seepage and drainage layer; the drainage guide channel and the drainage ditch are respectively arranged at two sides of the main shaft of the waste slag body; and the anti-skid reinforcing pile is arranged in the downstream side slope of the slag discarding body.
The row guide channel is of a reinforced concrete structure, the longitudinal gradient is not less than 5%, the section of the row guide channel is composed of an upper V-shaped channel and a lower V-shaped channel, the slope rate of the two sides of the upper V-shaped channel is 1:1, and the slope rate of the two sides of the lower V-shaped channel is 1: 0.5.
The invention has the advantages that engineering waste slag (such as railway and highway tunnel and excavation waste slag) can be effectively consumed, the risk of damaging ecological environment by the waste slag is reduced, the debris flow ditch is changed into valuable through the waste slag land-making engineering, the engineering construction land is formed, and the economic construction requirement is directly served; on the other hand, the double V-shaped discharge and guide channel can quickly guide upstream debris flow to downstream, prevent the debris flow from flooding, abandoning slag and building a side slope and the top surface thereof, and reduce the risk of causing disasters by the debris flow. The river valley type debris flow ditch slag-discarding and land-building structure has the characteristics of novel structure, safety, reliability, investment saving, simple construction and the like, and is suitable for severe mountainous areas with harsh environment, ecological sensitivity and complex terrain.
Drawings
The specification includes the following five figures:
FIG. 1 is a schematic plan view of a valley type debris flow trench reclamation structure of the present invention.
FIG. 2 is a schematic cross-sectional view taken at section I-I in FIG. 1.
FIG. 3 is a schematic view of a drainage layer of a base in a valley type debris flow trench reclamation structure according to the present invention.
FIG. 4 is a large view of a longitudinal drainage blind ditch in the valley type debris flow ditch waste slag reclamation structure of the present invention.
FIG. 5 is a schematic view of a drainage guide channel in the valley type debris flow channel waste slag reclamation structure of the present invention.
The figures show the components and corresponding references: the main structure of the concrete water-permeable and water-permeable combined drainage ditch comprises an upstream 1 st debris flow branch ditch N1, an upstream 2 nd debris flow branch ditch N2, a downstream debris flow ditch N, a substrate seepage drainage layer 1, a rock block doped gravel layer 1.1, a first medium coarse sand layer 1.2, a composite geomembrane 1.3, a second medium coarse sand layer 1.4, a longitudinal seepage drainage blind ditch 2, a clean gravel filler 2.1, a reinforced concrete drainage pipe 2.2, a waste slag body 3, a drainage ditch 4, an upper V-shaped ditch 4.1, a lower V-shaped ditch 4.2 and an anti-skid reinforcing pile 6.
Detailed Description
The invention is further illustrated by the following specific examples in conjunction with the accompanying drawings.
Referring to fig. 1 and 2, the valley type debris flow trench waste slag reclamation structure of the present invention includes: the river valley type debris flow ditch abandons sediment and makes ground structure includes: the base seepage and drainage layer 1 is arranged at the bottom of the valley type debris flow ditch; longitudinal water seepage and drainage blind ditches 2 arranged at two transverse sides of the base water seepage and drainage layer 1; the slag discarding body 3 is filled above the base seepage and drainage layer 1; the drainage guide channel 4 and the drainage channel 5 are respectively arranged at two sides of the main shaft of the waste slag body 3; and the anti-sliding reinforcing pile 6 is arranged in the side slope at the downstream of the abandoned slag body 3. The invention can effectively consume engineering waste slag (such as tunnel of railway and highway and excavation waste slag), reduce the risk of damaging ecological environment by the waste slag, change the debris flow ditch into valuable through the waste slag land-making engineering, form engineering construction land and directly serve economic construction requirements; on the other hand, the ground construction has the characteristics of novel structure, safety, reliability, investment saving, simple construction and the like, and is suitable for severe environment, ecological sensitivity and complex terrain in difficult mountainous areas.
Referring to fig. 5, the row guide groove 4 is made of reinforced concrete, the longitudinal gradient is not less than 5%, the section of the row guide groove is composed of an upper V-shaped groove 4.1 and a lower V-shaped groove 4.2, the slope ratio of the two sides of the upper V-shaped groove 4.1 is 1:1, and the slope ratio of the two sides of the lower V-shaped groove 4.2 is 1: 0.5. . The upper V-shaped groove 4.1 has the function of ensuring the width of the groove top to be large and ensuring the passing capacity of large stones; the lower V-shaped groove 4.2 has the characteristics of being narrow, deep, sharp and the like, and has the functions of improving hydrodynamic force through water depth change (namely section change), reducing resistance and increasing the flow velocity of debris flow led in at the upstream; the mud-rock flow slurry at the center and the sharp bottom of the lower V-shaped groove 4.2 also has the function of float-over lubrication, so that solid substances can be better promoted to move downstream in the groove. On the premise that the longitudinal gradient is not less than 5%, the discharge guide channel 4 can rapidly guide upstream debris flow to downstream, so that the debris flow is prevented from flooding, discarding slag and building a side slope and the top surface of the side slope, and the disaster risk of the debris flow is reduced.
Referring to fig. 3, the base drainage layer 1 is symmetrically laid from the center of the reclamation to both sides at a slope of not less than 2%. The base seepage and drainage layer 1 comprises a 1.0m thick rock block doped gravel layer 1.1, a 0.1m thick first medium coarse sand layer 1.2, a composite geomembrane 1.3 and a 0.2m thick second medium coarse sand layer 1.4 which are sequentially laid from bottom to top. The functions of the substrate permeation and drainage layer 1 include 4 aspects: one is that the rock block and crushed stone layer 1.1 can effectively drain the water invading into the substrate from the upstream of the underground water and debris flow ditch to the longitudinal seepage drainage blind ditch, and prevent the water from depositing on the substrate of the foundation; secondly, the stone-block-doped crushed stone layer 1.1 can increase the frictional resistance of the substrate, and effectively improve the overall stability of waste slag reclamation; thirdly, the composite geomembrane 1.3 can effectively prevent the water of the substrate from migrating to the upper waste slag body, and avoid the reduction of the mechanical index of the lower filling; and fourthly, the composite geomembrane 1.3 can also prevent the upper filling from invading the lower rock-block-doped gravel layer 1.1, and avoid the blocking failure of the rock-block-doped gravel layer 1.1.
Referring to fig. 4, the longitudinal seepage drainage blind ditch 2 adopts a trapezoidal ditch, the depth of the ditch is more than 0.6m, the bottom width is not less than 0.6m, the slope ratio of two sides is 1:1, the ditch is composed of a reinforced concrete drainage pipe 2.2 in which a clean gravel filler 2.1 is buried, and the diameter of the reinforced concrete drainage pipe 2.2 is not less than 200 mm; the longitudinal gradient of the longitudinal seepage and drainage blind ditch 2 is not less than 5 per thousand, the elevation of the ditch bottom is at least a lower than the elevation of the bottoms of two sections of the base seepage and drainage layer 1, and a is the depth of the longitudinal seepage and drainage blind ditch 2. The longitudinal seepage and drainage blind ditch 2 is used for draining water of the waste slag foundation to the downstream debris flow ditch N.
The anti-skid reinforcing piles 6 are typically reinforced concrete piles.
Referring to fig. 1 and 2, the invention relates to a construction method of a valley type debris flow trench waste slag reclamation structure, which comprises the following steps:
① prefabricated guide channels 4 by reinforced concrete;
② rectifying the bottom of the channel of the river valley type debris flow, excavating and applying longitudinal seepage and drainage blind ditches 2 at both sides of the basement seepage and drainage layer 1;
③ paving a base seepage and drainage layer 1 at the bottom of the valley type debris flow ditch, excavating pile foundations of a downstream side slope of the abandoned slag body 3, and erecting a mold to pour reinforced concrete to form an anti-skid reinforced pile 6;
④ filling and rolling the waste slag body 3 on the base seepage and drainage layer 1 layer by layer, and excavating the groove of the drainage guide ditch 4 when the top elevation of the drainage guide ditch 4 is filled;
⑤ hoisting and arranging the guide channel 4 into the groove, and pouring cement mortar along the outer side wall of the guide channel 4;
⑥ the abandoned dreg body 3 is filled continuously until the elevation of the top surface of the land reclamation, and meanwhile, the side slope protection around the abandoned dreg body is carried out.
Referring to fig. 1, in the step ④ and the step ⑤, the upstream of the drainage ditch 4 is directly connected with the upstream 1 st debris flow branch ditch N1 and the upstream 2 nd debris flow branch ditch N2, and the downstream of the drainage ditch 4 is directly connected with the downstream debris flow ditch N.
The foregoing is illustrative of the principles of the valley-type debris flow trench reclamation structure and construction method of the present invention and is not intended to limit the invention to the specific constructions and applications shown and described, and accordingly, all modifications and equivalents thereof which may be resorted to are intended to fall within the scope of the invention.
Claims (6)
1. River valley type mud-rock flow ditch is abandoned sediment and is made ground structure, characterized by includes: the base seepage and drainage layer (1) is arranged at the bottom of the valley type debris flow ditch; longitudinal water seepage and drainage blind ditches (2) arranged at the two transverse sides of the base water seepage and drainage layer (1); the waste slag body (3) is filled above the base seepage and drainage layer (1); the drainage guide channel (4) and the drainage channel (5) are respectively arranged at two sides of the main shaft of the waste slag body (3); and the anti-skid reinforcing pile (6) is arranged in the side slope at the downstream of the abandoned slag body (3).
2. The valley-type debris flow channel waste slag reclamation structure as recited in claim 1, wherein: the row guide channel (4) is of a reinforced concrete structure, the longitudinal gradient is not less than 5%, the section of the row guide channel is composed of an upper V-shaped channel (4.1) and a lower V-shaped channel (4.2), the gradient of two sides of the upper V-shaped channel (4.1) is 1:1, and the gradient of two sides of the lower V-shaped channel (4.2) is 1: 0.5.
3. The valley-type debris flow channel waste slag reclamation structure as recited in claim 1, wherein: the base seeps water drainage blanket (1) and is laid to both sides by making the ground center with the slope that is not less than 2%, and base seeps water drainage blanket (1) and comprises block stone mix rubble layer (1.1), the first medium and coarse sand layer (1.2) of 0.1m thick, compound geomembrane (1.3) and the second medium and coarse sand layer (1.4) of 0.2m thick that from down supreme laying in proper order.
4. The valley-type debris flow channel waste slag reclamation structure as recited in claim 1, wherein: the longitudinal seepage and drainage blind ditch (2) adopts a trapezoidal ditch, the depth of the ditch is more than 0.6m, the bottom width of the ditch is not less than 0.6m, the slope ratio of two sides is 1:1, the ditch is composed of a reinforced concrete drain pipe (2.2) in which a clean gravel filler (2.1) is embedded, and the diameter of the reinforced concrete drain pipe (2.2) is not less than 200 mm; the longitudinal gradient of the longitudinal seepage and drainage blind ditch (2) is not less than 5 per thousand, the elevation of the ditch bottom is at least a lower than the elevation of the bottoms of two sections of the foundation seepage and drainage layer (1), and a is the depth of the longitudinal seepage and drainage blind ditch (2).
5. The construction method of the valley type debris flow canal waste slag reclamation structure as claimed in any one of claims 1 to 4, comprising the steps of:
① prefabricated guide channels (4) by reinforced concrete;
② rectifying the bottom of the channel of the debris flow in the river valley, excavating and constructing longitudinal seepage and drainage blind ditches (2) at both sides of the basement seepage and drainage layer (1);
③ paving a base seepage and drainage layer (1) at the bottom of the valley type debris flow ditch, excavating pile foundations of a downstream side slope of the abandoned dreg body (3), and erecting a mold to pour reinforced concrete to form an anti-skid reinforcing pile (6);
④ filling layered and rolled waste slag bodies (3) on the base seepage and drainage layer (1) in layers, and excavating the grooves of the drainage guide channels (4) in time when the waste slag bodies are filled to the elevation of the top of the double drainage guide channels (4);
⑤ hoisting and arranging the guide channel (4) into the groove, and pouring cement mortar along the outer side wall of the guide channel (4);
⑥ the abandoned dreg body (3) is filled continuously until the elevation of the top surface of the reclamation land, and meanwhile, the side slope protection around the abandoned dreg body is carried out.
6. The construction method of the river valley type debris flow trench residue-removing and land-building structure as claimed in claim 5, wherein in the steps ④ and ⑤, the upstream of the discharge guide trench (4) is connected with the upstream 1 st debris flow branch trench (N1) and the upstream 2 nd debris flow branch trench (N2), and the downstream of the discharge guide trench (4) is connected with the downstream debris flow trench (N).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911064045.4A CN111119154A (en) | 2019-11-04 | 2019-11-04 | River valley type debris flow ditch waste slag land-making structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911064045.4A CN111119154A (en) | 2019-11-04 | 2019-11-04 | River valley type debris flow ditch waste slag land-making structure and construction method |
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| CN111119154A true CN111119154A (en) | 2020-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112488366A (en) * | 2020-11-17 | 2021-03-12 | 中铁二院工程集团有限责任公司 | Method for determining railway space line position of debris flow area |
| CN112921888A (en) * | 2021-01-29 | 2021-06-08 | 枣庄学院 | Narrow-steep-channel type debris flow solid source type quick discharging device, structure and construction method |
| CN113152628A (en) * | 2021-03-30 | 2021-07-23 | 贵州省交通规划勘察设计研究院股份有限公司 | V-shaped gully high-fill temporary drainage system and construction method thereof |
| CN113408870A (en) * | 2021-05-31 | 2021-09-17 | 中国科学院武汉岩土力学研究所 | Comprehensive safety control method for long-term environmental safety in slag disposal engineering |
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| CN112921888A (en) * | 2021-01-29 | 2021-06-08 | 枣庄学院 | Narrow-steep-channel type debris flow solid source type quick discharging device, structure and construction method |
| CN113152628A (en) * | 2021-03-30 | 2021-07-23 | 贵州省交通规划勘察设计研究院股份有限公司 | V-shaped gully high-fill temporary drainage system and construction method thereof |
| CN113408870A (en) * | 2021-05-31 | 2021-09-17 | 中国科学院武汉岩土力学研究所 | Comprehensive safety control method for long-term environmental safety in slag disposal engineering |
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