CN116219984A - Island type drought treatment method for marsh lands - Google Patents
Island type drought treatment method for marsh lands Download PDFInfo
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- E—FIXED CONSTRUCTIONS
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- E02B5/02—Making or lining canals
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- E—FIXED CONSTRUCTIONS
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- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
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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
- E03F3/046—Open sewage channels
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
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Abstract
The invention discloses an island type drought treatment method for a marsh land, and belongs to the technical field of engineering site construction processes. The island type drought treatment method for the swamp land is relatively low in construction cost, and can rapidly and effectively remove the surface water and the underground water under the swamp land appearance state, and the swamp land is converted into the swamp land island type drought treatment method with sustainable dry and hard fields. The island type drought treatment method is characterized in that island type swamps are formed by excavating main channels along the periphery in the swamps, ground supply sources of underground water and surface water inside and outside the island type swamps are cut off, then the island type swamps are drained to dry sites through a drainage treatment system comprising the main channels, then the island type swamps after the drain to dry sites are dried and hardened, and finally the island type swamps after the drying and hardening are subjected to surface backfill and leveling to obtain continuous dry and hard site conditions suitable for subsequent construction operations.
Description
Technical Field
The invention relates to an island type drought treatment method, in particular to an island type drought treatment method for a marsh land, and belongs to the technical field of engineering site construction processes.
Background
The swamp land with sufficient and continuous groundwater level is difficult to meet the normal operation requirement of heavy mechanical equipment due to weak foundation and cannot perform normal construction of the foundation. The method generally needs to adopt modes of backfilling the earth to fill up the high site, or arranging precipitation wells with enough quantity and depth, or using floating type water construction machinery and the like so as to meet the mechanical construction requirement. However, the method has the defects of unblocked underground water supply, need of outsourcing backfilling earthwork, uncertainty in earthwork sources, large engineering quantity generated by artificially increasing the original elevation of the site, design change, complex construction process, low mechanical efficiency, poor precipitation effect of a precipitation well in clay loam, need of continuous water pumping and the like, so that the project construction requirements are difficult to meet in terms of engineering progress and cost control.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the island type drought treatment method for the swamp land is relatively low in construction cost, and can rapidly and effectively remove the surface water and the underground water under the swamp land appearance state, and the swamp land is converted into the swamp land island type drought treatment method with sustainable dry and hard fields.
The technical scheme adopted for solving the technical problems is as follows: an island type drought treatment method for marsh lands, which comprises cutting off groundwater and surface water inside and outside the island type marsh lands while excavating main channels along the periphery in the marsh lands, draining the island type marsh lands by a drainage treatment system comprising the main channels, airing and hardening the island type marsh lands after the draining and hardening, and finally carrying out surface backfill and leveling on the island type marsh lands after the airing and hardening to obtain continuous dry and hard land conditions suitable for subsequent construction operations,
wherein, the airing hardening process is arranged in dry season of high Wen Duoyang by natural wind and sunlight exposure.
Further, the drainage dry field working procedure sequentially carries out infiltration drainage, evaporation and pumping drainage on the ground water and the surface water in the island type marsh land through the first-stage precipitation and the second-stage precipitation which are sequentially arranged.
The preferable mode of the scheme is that before first-stage precipitation, a main canal is excavated along the circumferential direction to form an island type marsh field, at least four water collecting pits are excavated on the main canal to form a backbone structure of a drainage treatment system, underground water seepage and surface drainage in the island type marsh and outside the water collecting pits are collected through the main canal, and after the lower water seepage and the surface drainage are collected into the water collecting pits, the island type marsh is pumped out to finish the first-stage precipitation. Further, after the first-stage precipitation is completed and the underground water seepage is obviously reduced, a dense seepage drainage ditch is excavated on the ground surface in the island type marsh land, the dense seepage drainage ditch is communicated with the main canal, the shallow underground water in the island type marsh land is converged into the main canal, and the island type marsh land is pumped out through a water collecting pit to complete the second-stage precipitation work.
The preferable mode of the scheme is that the number of the water pits excavated on the main channels is multiple of four, at least one pit is arranged at each of four corners of the main channels, and at least one pit is arranged on each of the four main channels along the circumferential direction; the dense infiltration and drainage ditches are distributed on the ground surface in the island type marsh land in parallel.
Further, a random encryption infiltration and drainage evaporation ditch is further arranged between two adjacent dense infiltration and drainage ditches, after the airing hardening process is finished, the random encryption infiltration and drainage evaporation ditches are arranged on the ground surface in the island type swamp land according to the requirement of local area reinforced drainage, and two ends of the random encryption infiltration and drainage evaporation ditches are respectively communicated with the main ditch at the same time.
The preferable mode of the scheme is that the cross section of the main canal is in an inverted trapezoid shape, and the canal wall is arranged in a natural stable gradient.
Further, the interval between two adjacent dense infiltration and drainage ditches is 2.0-5.0 m, the depth is 0.5-0.8 m, the cross section is concave, and the ditch wall is arranged in a vertical gradient.
The preferable mode of the scheme is that the distance between two adjacent random encryption infiltration and drainage evaporation ditches is 0.8-1.2 m, and the ditch wall is arranged in a natural mechanical excavation slope.
Further, a drainage canal is arranged at the outer side of the water retaining ridge, and underground water seepage of the pumping-discharging island type swamp land is discharged into a river channel far away from the swamp land through the drainage canal.
The beneficial effects of the invention are as follows: the technical scheme that this application provided cuts off the ground supply source of groundwater and surface water inside and outside island type marsh through adopting in the marsh earlier along peripheral excavation main canal formation island type marsh, then carries out the drainage dry field to island type marsh through the drainage processing system that contains main canal, carries out sunning to island type marsh after the drainage dry field and stiffens, carries out earth's surface backfill, flattening to island type marsh after the sunning stiffens at last and obtains the suitable continuous arid hard site condition of follow-up construction operation, wherein, the sunning stiffens the process and arranges and adopt natural wind and sunshine insolation to carry out in the arid season of height Wen Duoyang. Therefore, the conversion from the swamp to the sustainable dry and hard field can be quickly realized by using the excavating machinery and the water pumping equipment. The construction site of the project which is needed to be raised by earth backfill in the prior art is changed, but the groundwater level is difficult to remove and reduce, the cost is high, and the construction period is long; the current situation that a large number of dewatering wells are used for dewatering or water surface floating type earthwork machinery is used for construction, the efficiency is low, and the cost is high. The technical scheme that this application provided does not need to carry out the earthwork completely and backfills, and the sustainable dry hard place of establishing through island formula, the infiltration sunning drainage dry place scheme of this application can realize the isolation of project marsh place interior groundwater and outer marsh land groundwater moreover, once and once for all has solved the problem of lasting high groundwater level in the construction place, reaches construction machinery singleness, quick dry place, maintenance is simple, show reduction construction cost and provide the guarantee purpose for engineering construction progress.
Drawings
FIG. 1 is a plan view of a wetlands plant of the present invention for use in an island type arid treatment process for the wetlands plant;
FIG. 2 is a plan view of a swamp provided with a drainage treatment system in accordance with the island type arid treatment method for swamps of the present invention;
FIGS. 3 to 7 are cross-sectional views of FIGS. 2, 1-1, 2-2, 3-3, 4-4, 5-5.
Marked in the figure as: island type swamp 1, drainage treatment system 2, main canal 3, water retaining ridge 4, water collecting pit 5, dense infiltration and drainage ditch 6, random encryption infiltration and drainage evaporation ditch 7, drainage canal 8 and external swamp 9.
Detailed Description
As shown in figures 1-7, the island type drought treatment method for the swamp land provided by the invention has relatively low construction cost, can rapidly and effectively remove the surface water and the underground water under the swamp landform state, and can convert the swamp land into the swamp land with sustainable dry and hard sites. The island type drought treatment method comprises the steps of firstly excavating main channels 3 along the periphery in a marsh land to form the island type marsh land 1, cutting off underground water and surface water inside and outside the island type marsh land 1, then draining the island type marsh land 1 through a drainage treatment system 3 comprising the main channels 3, then airing and hardening the island type marsh land 1 after the draining and hardening, and finally carrying out surface backfilling and leveling on the island type marsh land 1 after the airing and hardening to obtain a continuous dry and hard land condition suitable for subsequent construction operation, wherein the airing and hardening procedure is arranged in a dry season with a height Wen Duoyang by natural wind and sunlight exposure. Therefore, the conversion from the swamp to the sustainable dry and hard field can be quickly realized by using the excavating machinery and the water pumping equipment. The construction site of the project which is needed to be raised by earth backfill in the prior art is changed, but the groundwater level is difficult to remove and reduce, the cost is high, and the construction period is long; the current situation that a large number of dewatering wells are used for dewatering or water surface floating type earthwork machinery is used for construction, the efficiency is low, and the cost is high. The technical scheme that this application provided does not need to carry out the earthwork completely and backfills, and the sustainable dry hard place of establishing through island formula, the infiltration sunning drainage dry place scheme of this application can realize the isolation of project marsh place interior groundwater and outer marsh land groundwater moreover, once and once for all has solved the problem of lasting high groundwater level in the construction place, reaches construction machinery singleness, quick dry place, maintenance is simple, show reduction construction cost and provide the guarantee purpose for engineering construction progress.
In the above embodiment, in order to shorten the construction period as much as possible and improve the construction efficiency, the drainage dry field procedure of the present application sequentially performs infiltration drainage, evaporation and pumping drainage on groundwater and surface water in the island type marsh 1 through first-stage precipitation and second-stage precipitation which are sequentially arranged, so as to complete the drainage dry field work. At this time, before first-stage precipitation, the main canal 3 is excavated along the circumferential direction to form an island type swamp site 1, meanwhile, a water retaining ridge 4 is constructed, then at least four water collecting pits 5 are excavated on the main canal 3 to form a backbone structure of the drainage treatment system 2, then underground water seepage and surface drainage in the island type swamp site 1 and outside the water retaining ridge 4 are collected through the main canal 3, and after the lower water seepage and the surface drainage are collected in the water collecting pits 5, the island type swamp site 1 is pumped and discharged to finish the first-stage precipitation. Then, after the first-stage precipitation is completed and the underground water seepage is obviously reduced, excavating a dense seepage drainage ditch 6 on the ground surface in the island type marsh 1, and enabling the dense seepage drainage ditch 6 to be communicated with the main canal 3, so that the shallow groundwater in the island type marsh 1 is collected into the main canal 3 and pumped out through a water collecting pit 5, and the island type marsh 1 is completed in the second-stage precipitation.
At this time, in order to facilitate the drainage of seepage, the water collection pits 5 excavated on the main channels 3 are multiples of four, at least one is arranged at four corners of the main channels 3, and at least one is arranged on each main channel 3 of the four main channels 3 along the circumferential direction; the number of the dense infiltration and drainage ditches 6 is multiple, and each dense infiltration and drainage ditch 6 is uniformly distributed on the ground surface in the island type swamp land 1 in parallel. Meanwhile, in order to accelerate the discharge of surface water and water storage in the marsh, a random encryption infiltration and drainage evaporation ditch 7 is further arranged between two adjacent dense infiltration and drainage ditches 6, the random encryption infiltration and drainage evaporation ditch 7 is basically arranged on the ground surface in the island marsh 1 according to the requirement of local area reinforced drainage after the airing hardening process is basically completed, and two ends of the random encryption infiltration and drainage evaporation ditch 7 are respectively and simultaneously communicated with the main ditch 3.
Further, in order to prevent the collapse of the structures of the parts forming the drainage treatment system in the processes of water collection, drainage and airing, and improve the drainage and evaporation of water storage, the cross section of the main canal 3 is in an inverted trapezoid shape, and the canal wall is in a natural stable gradient. The distance between two adjacent dense infiltration and drainage ditches 6 is 2.0-5.0 m, the depth is 0.5-0.8 m, the cross section is concave, and the ditch wall is arranged in a vertical gradient. The distance between two adjacent random encryption infiltration evaporation ditches 7 is 0.8-1.2 m, and the ditch walls are arranged in a natural mechanical excavation slope.
Simultaneously, in order to get more distant ground water, avoid the backward flow, this application still is provided with water drainage canal 8 in the outside of manger plate ridge, and the underground infiltration of pump drainage marsh 1 is discharged to keeping away from in the marsh river course through water drainage canal 8.
In summary, the technical proposal provided by the application has the following advantages,
the main canal and the water collecting pit are excavated around the marsh field to form the water retaining ridge, part of the field surface water is discharged, the ground water level of the field is primarily reduced, and the surface water outside the field and the ground water supply source to the surface and the ground in the field are blocked. And then, the intensive seepage drainage ditch is excavated in the field, accumulated water and part of groundwater in the field are guided to the water collection pit, and the water level of the groundwater in the field is further reduced by discharging the water in the field through the pumping drainage system. After the drying is realized by utilizing the window period of the dry season, the encryption seepage evaporation ditch is excavated in a partitioning way, so that the rapid drought of the whole field is realized while the ground water level of the field is reduced, and the construction requirement of heavy mechanical equipment is met. According to the scheme, the ground water level is gradually reduced through the three-level drainage scheme, so that on one hand, the cost and progress increase caused by the adoption of common earthwork backfilling and rolling high-lift operation are avoided, meanwhile, the backfilling is carried out by using the encrypted drainage ditch excavated material, and a large amount of engineering cost is saved. On the other hand, by utilizing the window period of the dry season, the rapid drought of the field is realized within 30 days by the dense seepage drainage ditch and the random encryption seepage drainage evaporation ditch, the construction condition of the dry and hard field is formed, the construction progress of the subsequent building on the field is greatly promoted, and a good foundation is laid for the progress promotion of the whole project.
The technical scheme of the application is further described by the following specific examples:
the technical problem that this application was to solve is to provide one kind under the circumstances that does not carry out backfill bed hedgehopping, does not take dewatering well and use showy formula construction equipment on water, carries out island formula rapid drought to marsh landform place fast to improve the foundation bearing capacity of place, satisfy mechanical equipment construction requirement.
In order to solve the problems, the application provides an island type rapid drought technology for a marsh land feature field, which comprises the steps of excavating main channels around the field, forming islands on the field, forming water retaining ridges by utilizing excavated earthwork, and simultaneously arranging water collecting pits at a plurality of points to intensively pump water to finish first-stage precipitation of the field. Then, digging dense seepage drainage ditches in the field and collecting running water to a water collecting pit to finish second-stage precipitation in the field. Secondly, after the field is fully aired by using a dry season, the field is subjected to zonal encryption and drainage again, a small excavator is used for excavating an encryption and drainage evaporation ditch, and the construction requirements of heavy mechanical equipment can be met after the full evaporation and airing. Finally, before the construction of the built-in structures of the heavy machinery equipment, the dense infiltration-discharge ditch and the encrypted infiltration-discharge evaporation ditch in the respective areas are buried and backfilled (by utilizing the excavation of the drainage ditch) to form dry and hard site conditions.
The field of the application is a swamp landform;
the water pits are uniformly distributed in the main canal at certain intervals and are mainly arranged at the southeast corner and southwest corner of the field;
the cross section of the main canal is inverted trapezoid;
the intensive seepage and drainage ditches in the field are distributed from north to south, and form vertical gradient during excavation, so that the mechanical excavation operation and accumulated water collection are facilitated, the spacing between the intensive seepage and drainage ditches is specific to the field, and is generally about 4 meters;
the scheme also comprises a pumping system, wherein accumulated water discharged by the pumping system is discharged out of the field and then is gathered into the peripheral natural river channel;
after the second-stage precipitation, only simple operations such as excavation and the like of small construction mechanical equipment can be met, and the construction requirements of heavy mechanical equipment cannot be met;
the encrypted seepage-drainage evaporation ditches are all distributed from north to south, and form vertical gradient as much as possible during excavation, and the interval between drainage ditches is reduced to 1.0 meter.
After the drainage ditch is encrypted, the drainage speed is greatly improved, and the integral drought of the field is rapidly realized within 30 days;
backfilling after desiccation of the dense infiltration and drainage ditches and the encrypted infiltration and drainage evaporation ditches directly uses excavated matters, and the construction requirements of heavy machinery can be met after simple compaction, so that the related cost of material outward transportation is avoided;
after the dry and hard site conditions are formed, after the bearing capacity of the site foundation meets the construction requirements of mechanical equipment, the subsequent building construction can be rapidly carried out. After the follow-up construction is completed, the pumping and draining system stops running, so that the pumping and draining cost is saved.
In a word, the technical scheme provided by the application is that the main canal is dug along the peripheral line of the field to encircle the marsh land block to be treated, so that island is formed on the field, and the main canal is annularly arranged to intercept surface water and underground water outside the field and collect accumulated water discharged from the field; gradually drying construction conditions of the earth surface formed in stages are utilized in a field forming an island state, gradually encrypting and excavating are carried out, a dense infiltration drainage ditch and an encrypted infiltration drainage evaporation ditch which are connected with a main ditch and are arranged in parallel are formed, all surface water and groundwater with a required depth are removed, and in a dry season with a height of Wen Duoyang, natural wind power and sunlight are utilized to insolate the field, so that a quick drying field is realized; and finally, backfilling and trimming to form a sustainable dry and hard construction site.
Example 1
The present application is further described below with reference to the accompanying drawings.
As shown in FIG. 1, the engineering site and the periphery thereof are marsh land features, and natural river channels surround the periphery of the site, so that the underground water is rich. FIG. 2 is a plan layout of an entire field island type rapid drought treatment scheme, including a main trench layout around the field, an in-field dense infiltration drainage trench layout, a local encryption infiltration drainage evaporation trench layout, and drainage schematic using the natural inclination of the field. Fig. 3 to 6 mainly show cross-sectional views of dense infiltration and drainage ditches and encrypted infiltration and drainage evaporation ditches, and fig. 7 mainly shows a schematic cross-sectional structure of the present application for island type rapid drought treatment of swamp landform.
Specifically, as shown in fig. 7, a main canal is excavated in the circumferential direction of the site, and a water retaining bank is formed by the excavation on the far-field site side of the main canal. And collecting the surface water of the site and the groundwater of the part with the elevation required to be removed to a water collecting ditch by utilizing the natural inclination of the site of 3 percent, and discharging the surface water of the site and the groundwater. Then, the intensive seepage drainage ditch is excavated in the field, and the surface water and underground seepage water in the field are further collected into the water collection ditch for drainage, so that the aim of preliminary drought is fulfilled. Further, the encryption seepage and drainage evaporation ditch is excavated in the area with serious site ponding, site seepage and drainage are enhanced, and the encryption seepage and drainage evaporation ditch is converged into the water collecting ditch for centralized drainage, so that the aim of realizing rapid drought by utilizing the window period of the dry season is fulfilled.
The land island type drought construction process of the marsh land features of a certain photovoltaic power station has the total area of about 50 hectares, the underground water burial depth of the land is about 0.4m, the marsh land features are formed, and the accumulated water is distributed. The bidding stage is to adopt the traditional earthwork backfilling rolling compaction to carry out the heightening mode so as to meet the construction conditions of heavy mechanical equipment, and then the proposal is abandoned due to the problems of cost and progress. In view of the swamp land feature, for fast project progress, three-level drainage (including encryption drainage ditch drainage) is adopted by comprehensive consideration to realize fast drought. Island is formed in the field by excavating main channels around the field, water collecting pits are excavated by the main channels, water retaining ridges are formed by utilizing excavated earth materials, part of field surface water is discharged, and the ground water level and field water accumulation of the field are primarily reduced. And then, the intensive seepage drainage ditch is excavated in the field, accumulated water and part of ground water in the field are guided to the main ditch water collection pit, and the accumulated water and the ground water are discharged through the pumping drainage system, so that the ground water level and the ground water are further reduced. After the drying is realized by using the window period of the dry season, the encryption seepage evaporation ditch is excavated in a partitioning way, so that the ground water level of the field is reduced again, and the rapid drought of the whole field is realized. At present, the photovoltaic power station has been finished for more than three years, and the phenomena of sedimentation, deviation and the like of a permanent road surface, a permanent drainage ditch, a concrete structure and a photovoltaic array tubular pile foundation do not occur.
Claims (10)
1. The island type drought treatment method for the marsh land is characterized by comprising the following steps of: the island type drought treatment method firstly adopts a main canal (3) excavated along the periphery in the marsh to form island type marsh (1) and cuts off groundwater and surface water inside and outside the island type marsh (1), then a drainage treatment system (3) containing the main canal (3) is used for draining the island type marsh (1) to a dry site, then the island type marsh (1) after draining the dry site is cured by airing, finally the island type marsh (1) after curing is backfilled on the ground surface and leveled to obtain continuous dry and hard site conditions suitable for subsequent construction operation,
wherein, the airing hardening process is arranged in dry season of high Wen Duoyang by natural wind and sunlight exposure.
2. The island-type drought treatment method for swamps according to claim 1, characterized in that: the drainage dry field working procedure sequentially carries out infiltration drainage, evaporation and pumping drainage on the ground water and surface water in the island type marsh lands (1) through first-stage precipitation and second-stage precipitation which are sequentially arranged.
3. The island-type drought treatment method for swamps according to claim 2, characterized in that: before first-stage dewatering, constructing a water retaining ridge (4) while excavating a main canal (3) along the circumferential direction to form an island type swamp field (1), then excavating at least four water collecting pits (5) on the main canal (3) to form a backbone structure of a drainage treatment system (2), then collecting underground water seepage and surface drainage in the island type swamp field (1) and outside the water retaining ridge (4) through the main canal (3), and pumping and draining the island type swamp field (1) after the lower water seepage and the surface drainage are collected into the water collecting pits (5) to finish the first-stage dewatering.
4. An island type drought treatment method for swamps according to claim 3, characterized in that: after the first-stage precipitation is completed and the underground water seepage is obviously reduced, a dense seepage drainage ditch (6) is excavated on the ground surface in the island type marsh (1), the dense seepage drainage ditch (6) is communicated with the main canal (3), the shallow groundwater in the island type marsh (1) is collected into the main canal (3), and the island type marsh (1) is pumped and discharged through a water collecting pit (5) to complete the second-stage precipitation.
5. The island-type drought treatment method for swamps according to claim 4, wherein: the method comprises the steps that the number of water collection pits (5) excavated on the main channels (3) is a multiple of four, at least one pit is arranged at each of four corners of the main channels (3), and at least one pit is arranged on each main channel (3) of the four main channels (3) along the circumferential direction; the number of the dense infiltration and drainage ditches (6) is multiple, and each dense infiltration and drainage ditch (6) is uniformly distributed on the ground surface in the island-type swamp land (1) in parallel.
6. The island-type drought treatment method for swamps according to claim 5, wherein: a random encryption infiltration and drainage evaporation ditch (7) is further arranged between two adjacent dense infiltration and drainage ditches (6), after the airing hardening process is finished, the random encryption infiltration and drainage evaporation ditches (7) are arranged on the ground surface in the island type swamp land (1) according to the requirement of local area reinforced drainage, and two ends of the random encryption infiltration and drainage evaporation ditches (7) are respectively and simultaneously communicated with the main ditch (3).
7. The island type drought treatment method for swamps according to claim 3, 4, 5 or 6, wherein: the cross section of the main canal (3) is in an inverted trapezoid shape, and canal walls are arranged in a natural stable gradient.
8. The island-type drought treatment method for swamps according to claim 4, wherein: the interval between two adjacent dense infiltration and drainage ditches (6) is 2.0-5.0 m, the depth is 0.5-0.8 m, the cross section is concave, and the ditch wall is arranged in a vertical gradient.
9. The island-type drought treatment method for swamps according to claim 6, wherein: the distance between two adjacent random encryption infiltration and drainage evaporation ditches (7) is between 0.8 and 1.2 meters, and the ditch walls are arranged in a natural mechanical excavation slope way.
10. The island-type drought treatment method for swamps according to claim 7, wherein: the outside of the water retaining ridge is also provided with a drainage canal (8), and underground water seepage of the pumping-discharging island type swamp land (1) is discharged into a river channel far away from the swamp land through the drainage canal (8).
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182198A (en) * | 2011-04-12 | 2011-09-14 | 中国十九冶集团有限公司 | Drainage laying method of pulp pipeline in seasonal wetland swamp region |
| RU2618693C1 (en) * | 2016-07-11 | 2017-05-11 | Михаил Иванович Голубенко | Method for draining lands with close groundwater bedding while building aerodrome runways |
| CN112726556A (en) * | 2021-02-02 | 2021-04-30 | 东营市勘察测绘院 | Dredger fill foundation treatment construction method |
| CN115045311A (en) * | 2022-08-01 | 2022-09-13 | 上海宝冶集团有限公司 | Method for combining foundation pit drainage and structure anti-floating |
-
2023
- 2023-03-16 CN CN202310254645.7A patent/CN116219984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182198A (en) * | 2011-04-12 | 2011-09-14 | 中国十九冶集团有限公司 | Drainage laying method of pulp pipeline in seasonal wetland swamp region |
| RU2618693C1 (en) * | 2016-07-11 | 2017-05-11 | Михаил Иванович Голубенко | Method for draining lands with close groundwater bedding while building aerodrome runways |
| CN112726556A (en) * | 2021-02-02 | 2021-04-30 | 东营市勘察测绘院 | Dredger fill foundation treatment construction method |
| CN115045311A (en) * | 2022-08-01 | 2022-09-13 | 上海宝冶集团有限公司 | Method for combining foundation pit drainage and structure anti-floating |
Non-Patent Citations (3)
| Title |
|---|
| 单宝忠;: "浅谈三江平原沼泽地土方工程施工方法", 东北水利水电, no. 02, 1 May 1989 (1989-05-01), pages 38 - 40 * |
| 朱全;: "大口径长输管道沼泽地段施工技术研究与应用", 化工管理, no. 03, 21 January 2016 (2016-01-21), pages 118 * |
| 石金昌: "林区沼泽地路基施工方法", 林业科技, no. 02, 25 March 1981 (1981-03-25), pages 33 - 35 * |
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