CN114855710A - Construction method for manufacturing composite gate dam by using cemented gravel concrete - Google Patents
Construction method for manufacturing composite gate dam by using cemented gravel concrete Download PDFInfo
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- CN114855710A CN114855710A CN202210598599.8A CN202210598599A CN114855710A CN 114855710 A CN114855710 A CN 114855710A CN 202210598599 A CN202210598599 A CN 202210598599A CN 114855710 A CN114855710 A CN 114855710A
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- 238000010276 construction Methods 0.000 title claims abstract description 53
- 239000004567 concrete Substances 0.000 title claims abstract description 49
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000009412 basement excavation Methods 0.000 claims abstract description 9
- 239000004570 mortar (masonry) Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 238000012423 maintenance Methods 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000003908 quality control method Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000011282 treatment Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000003487 anti-permeability effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 2
- 238000009415 formwork Methods 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000005056 compaction Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000004886 process control Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 35
- 238000005516 engineering process Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
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- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
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- 239000011435 rock Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
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- 239000010902 straw Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method for manufacturing a composite gate dam by using cemented gravel concrete, which comprises the following steps of; s1: the fourth covering layer is removed; s2: backfilling a cemented sand gravel dam foundation; s3: building a concrete gate dam, excavating a fourth series of deep covering layers above bedrock at a dam site in S1, using the fourth series of deep covering layers as aggregate of available material sources of cemented gravel and sand, controlling a topographic line measured on a typical section according to the contour, the side slope ratio and the width size of the bottom of the dam and the dam section according to a construction drawing, and discharging an excavation opening side line of the gate dam foundation on site; the construction method for manufacturing the composite gate dam by using the gelled gravel concrete can reduce the requirements on the section of the dam body, the foundation, the adaptability of hydrological climate and the like, simultaneously realizes the intelligentization of quality process control, and provides a digital dam analysis platform for long-term safe operation of the dam.
Description
Technical Field
The invention relates to the technical field of hydraulic and hydroelectric engineering, in particular to a construction method for manufacturing a composite gate dam by using cemented gravel concrete.
Background
The sluice dam hydropower station built on the river with the gentle valley, the wide riverbed with the thickness of more than 600m and the fourth series covering layer mainly used as the accumulation of the cause of slope collapse and flood rushing is a dam type with a material structure, such as an earth-rock dam, a rock-fill dam and a concrete dam, the dam building technology with single material has the advantages and the disadvantages of prominent advantages and disadvantages, poor adaptability to the building environment, high construction cost, long construction period and lack of traceability of quality process control, and the development requirements of the low cost, high quality, suitability for materials, environmental protection, intelligent construction and the like of the dam building technology are limited.
Disclosure of Invention
The invention aims to solve the problems and provides a construction method for manufacturing a composite gate dam by using gelled gravel concrete, which can prevent the overflow of a dam body, reduce the requirements of the section of the dam body, the foundation, the adaptability of hydrological climate and the like, realize the intelligentization of quality process control and provide a digital dam analysis platform for the long-term safe operation of the dam.
In order to achieve the purpose, the technical scheme of the invention is as follows; a construction method for manufacturing a composite gate dam by using cemented gravel concrete comprises the following steps;
s1: fourth, digging out the covering layer;
s2: backfilling a cemented sand gravel dam foundation;
s3: and (5) building a concrete gate dam.
Preferably, the fourth series of deep covering layers above the bedrock at the dam site are excavated in the step S1 and used as aggregate of available material sources for cemented gravel and sand, and the landform line measured on the typical section is controlled by combining the dam section according to the gate dam profile, the side slope ratio and the width size of the base designed by the construction drawing, so as to discharge the excavation opening side line of the gate dam base on the spot.
Preferably, in S2, the cemented sand gravel dam foundation surface is formed by pouring a 0.5-1.0m thick bed course with normal concrete, and the cemented sand gravel is filled according to the block, layer and strip of the engineering part, and is performed after the excavation and foundation treatment of each part are completed.
Preferably, when cemented sand gravel is filled, transverse seams are longitudinally arranged along the gate dam, the longitudinal block length is 20-30 m, the strip width is not less than 8m, the layering height is 3m, the template adopts a large cantilever steel template and a combined steel template, and the layering rolling thickness is 50-70 cm.
Preferably, the construction method for constructing the concrete gate dam in S3 includes the steps of pouring the concrete gate dam by adopting a horizontal block-and-skip method and layering the vertical surface from bottom to top, partitioning according to a dam section parting structure design, burying water-stop and gap-filling materials at parting joints between dam sections, wherein the layering height is 3m, a 3.0m × 3.0m large steel template is adopted as a template, concrete is intensively mixed by a mixing station, a dump truck is transported to a pouring point, an adhesive tape machine or a hoisting device and a hoisting tank are adopted for warehousing, and a manual insertion type vibrator is used for compacting.
Preferably, the step S2 further includes joint surface treatment, maintenance and quality control, wherein the joint surface treatment specifically includes that a slurry-rich cemented sand gravel area having anti-permeability requirements on upstream and downstream surfaces is subjected to high-pressure water blasting, until sand grains and small stones are exposed, a joint surface is constructed before mortar or mortar is laid, secondary pollutants are eliminated, cemented sand gravel is immediately covered after mortar is laid, after the joint surface treatment is completed and acceptance is passed, a layer of mortar is firstly laid, and then a layer of cemented sand gravel is laid; during maintenance, spraying is adopted for surface moisture compensation or tarpaulin covering, the surface is kept not to be whitened, and when the temperature is low, a maintenance cushion is used for covering, so that cemented sand gravel is prevented from being frozen; the quality control specifically comprises the steps of adopting advanced means based on ultra-wideband or Beidou satellite positioning, high-definition video monitoring, non-contact measurement, a mobile terminal and the like to collect and analyze construction dynamic information in real time, bringing all links of raw material mining, mixing production, mixture transportation, warehouse surface rolling operation and the like of cemented sand gravel into monitoring, and constructing a cemented sand gravel dam construction quality monitoring and early warning system by combining corresponding quality control standards.
The invention discloses a construction method for manufacturing a composite gate dam by using cemented gravel concrete, which comprises the following steps of; s1: the fourth covering layer is removed; s2: backfilling a cemented sand gravel dam foundation; s3: building a concrete gate dam, excavating a fourth series of deep covering layers above bedrock at a dam site in S1, using the fourth series of deep covering layers as aggregate of available material sources of cemented gravel and sand, controlling a topographic line measured on a typical section according to the contour, the side slope ratio and the width size of the bottom of the dam and the dam section according to a construction drawing, and discharging an excavation opening side line of the gate dam foundation on site; the construction method for manufacturing the composite gate dam by using the gelled gravel concrete can reduce the requirements on the section of the dam body, the foundation, the adaptability of hydrological climate and the like, simultaneously realizes the intelligentization of quality process control, and provides a digital dam analysis platform for long-term safe operation of the dam.
Drawings
FIG. 1 is a schematic flow chart of the steps of the construction method for manufacturing the composite gate dam by using the gelled gravel concrete of the invention.
Fig. 2 is a schematic longitudinal section view of the composite gate dam in the construction method for manufacturing the composite gate dam by using the gelled gravel concrete.
Fig. 3 is a schematic cross-sectional view of the composite gate dam in the construction method of the composite gate dam made of the gelled gravel concrete according to the present invention.
Detailed Description
Referring to fig. 1-3, the technical scheme of the invention is that the construction method for manufacturing the composite gate dam by using the cemented gravel concrete comprises the following steps;
s1: the fourth covering layer is removed;
the fourth series of deep covering layers above bedrock at the dam site are excavated in the S1 and used as aggregate of available material sources for cemented gravel and sand, the contour, the side slope ratio and the width size of the bottom of the foundation of the gate dam are designed according to the construction drawing, the topographic line measured on the typical section is controlled by combining the dam section, and the excavation opening side line of the gate dam foundation is discharged on site; the method for excavating the gravel covering layer adopts a longitudinal strip-dividing and vertical surface top-down layered excavation mode, generally adopts a layer of 3-4m, adopts an excavator to excavate and load, and adopts a dump truck to transport the gravel covering layer to an aggregate field for stockpiling to be used as aggregate for backfilling the cemented gravel dam foundation.
S2: backfilling a cemented sand gravel dam foundation;
in the S2, a bed course with the thickness of 0.5-1.0m is poured on the building base surface of the cemented sand gravel dam by normal concrete, the cemented sand gravel is filled according to blocks, layers and strips of the engineering part when being filled, the process is carried out after the excavation and the foundation treatment of each part are finished, a transverse seam is longitudinally arranged along the gate dam when the cemented sand gravel is filled, the longitudinal block length is 20-30 m, the strip width is not less than 8m, the layer height is 3m, the template adopts a large cantilever steel template and a combined steel template, the layering rolling thickness is 50-70cm, the maximum is not more than 70cm, the paving thickness is determined by a rolling process productivity test, and the unloading flat-cabin direction is parallel to the axis of the power station factory building by adopting a through-cabin and continuous paving method. When the continuous rising and paving are carried out, the interlayer interval time is controlled within the direct paving allowable time, and the bedding mixture such as mortar and the like is added on the layer surface exceeding the direct paving allowable time.
The cemented sand gravel packing is intensively mixed by a mixing station, the cemented sand gravel packing is transported by a dump truck, the dump truck is directly put into a bin or a loader and a long-arm backhoe are used for assisting in putting into the bin according to the bin number, the dump truck is directly put into the bin to sequentially unload the cemented sand gravel packing, and the distance between the edge of a discharged material pile and a template is not less than 1.2 m. The steel cylinder is paved and leveled by a grader or a bulldozer, the steel cylinder is vibrated and rolled, and the part which is locally difficult to be rolled is compacted by hand rolling. The lapping width between the rolling strips is 0.3 m-0.4 m, and the lapping length of the end is 1 m. The rich-slurry cemented sand gravel is constructed layer by layer along with the filling of the cemented sand gravel, and the lap joint width of the rich-slurry cemented sand gravel and the adjacent area is more than 300 mm. The construction of the rich-slurry cemented sand gravel adopts a two-layer slurry adding method, a grouting method or a groove-hooking slurry adding method, and adopts a phi 100 high-frequency vibrator for vibrating, a small-sized vibrating roller for rolling or a tamper for manually tamping.
The step S2 further includes seam face treatment, maintenance and quality control.
Surface sewing treatment: the construction joint between the gelled sand gravel layers mainly removes floating slurry and loose aggregate on the hardened joint surface of the gelled sand gravel, and the layer surface does not need roughening treatment. And (3) adopting high-pressure water for scouring the slurry-rich cemented sand gravel area with the anti-permeability requirement on the upstream and downstream surfaces, and taking the exposed sand grains and small stones as the standard. The construction joint surface eliminates secondary pollutants before mortar or mortar is paved, and cemented sand gravel is covered immediately after mortar is paved. After the joint surface treatment is finished and the joint surface is qualified by inspection, a layer of mortar body is paved, and then a layer of gelled sand gravel is paved. The net slurry cushion layer is 5mm thick, and the mortar cushion layer is 10-15 mm thick (the strength is one grade higher than the grade of the gelled sand gravel). The mortar is paved one by one like the cemented sand gravel, and the upper layer of the cemented sand gravel is rolled within a specified time.
And (5) maintenance: in the construction process, the bin surface is kept wet. When the illumination is strong or the drying is carried out by strong wind, the surface moisture compensation or the covering of tarpaulin is carried out by adopting spraying, and the surface is kept from whitening. When the temperature is lower, the cement sand gravel is covered by a maintenance cushion to prevent the cement sand gravel from freezing. During the construction intermittence period, the cemented sand gravel begins to be moisturized and cured after being finally set. Maintaining the construction joints until the upper layer of cemented sand gravel begins to be paved; the maintenance time of the permanently exposed surface is not less than 28 days, and the maintenance time of the part with special requirements is properly prolonged.
Quality control: the construction quality of the cemented sand gravel dam is ensured by adopting an intelligent monitoring system in the construction process, namely, construction dynamic information is collected and analyzed in real time by advanced means based on ultra-wideband or Beidou satellite positioning, high-definition video monitoring, non-contact measurement, a mobile terminal and the like, all links of raw material mining, mixing production, mixture transportation, warehouse surface rolling operation and the like of the cemented sand gravel are monitored, a cemented sand gravel dam construction quality monitoring and early warning system is constructed by combining corresponding quality control standards, the construction processes of mixing, rolling and the like are ensured to meet construction specifications and process requirements, problems are found and early warned in time, the cemented sand gravel construction quality and engineering safety are ensured, and a digital dam analysis platform is provided for long-term safe operation of the dam.
S3: building a concrete gate dam;
the construction method for building the concrete gate dam in the S3 comprises the steps of adopting a horizontal block skip method and carrying out concrete gate dam pouring in a layered mode from bottom to top on a vertical surface, carrying out block division according to a dam section parting structural design, generally taking 15-20m as one block, embedding water stop and joint filling materials at parting joints among dam sections, wherein the layering height is 3m, the templates adopt 3.0m multiplied by 3.0m large steel templates, concrete is intensively mixed by a mixing station, a dump truck is transported to a pouring point, an adhesive tape machine or a hoisting device and a hanging tank are adopted for warehousing, and an artificial insertion type vibrator is adopted for compacting.
Further, step S3 also includes seam face treatment, maintenance and quality control.
Surface sewing treatment: after each layer of concrete is poured, before initial setting, high-pressure water is adopted for scouring, and the condition that sand grains and small stones are exposed is taken as the standard. The interval between the layers is generally 3-7 days, and a layer of cement mortar (the strength is equal to or higher than that of concrete) with the thickness of 1-2cm is paved before the lower layer construction, so that the good combination between the upper layer and the lower layer is ensured.
And (5) maintenance: and (3) paving heat insulation and heat preservation materials such as straw bags on the surface of the bin after the initial setting of the concrete in time, watering and curing in time, starting to perform within 12-18 hours after the concrete pouring is finished, and curing time is not less than 14 days. And (3) maintaining the surface of the concrete after the form removal by adopting a film, and coating a layer of curing agent on the surface of the concrete to form a water-retaining film, wherein the quality of the concrete is not influenced by the coating.
Quality control: the monitoring of the whole process of the dam concrete construction adopts a plurality of internet of things technologies such as three-dimensional positioning, vibration sensing and the like, sensing devices such as positioning devices, sensors and the like are installed on a concrete transport vehicle and a vibrating rod, and a wireless network and a local area network technology are combined, so that the real-time analysis, monitoring and early warning of various quality parameters such as the concrete production quality, the pouring vibration quality and the like are realized, and the monitoring and early warning are served for the quality control and management of the on-site concrete construction.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (6)
1. A construction method for manufacturing a composite gate dam by using cemented gravel concrete is characterized by comprising the following steps;
s1: the fourth covering layer is removed;
s2: backfilling a cemented sand gravel dam foundation;
s3: and (5) building a concrete gate dam.
2. The construction method for manufacturing the composite gate dam by using the gelled gravel stone concrete as claimed in claim 1, wherein a fourth series of deep covering layers above bedrock at the dam site are dug out in S1, the fourth series of deep covering layers are used as aggregate of available cemented gravel stone material sources, and a terrain line measured by a typical section is controlled by combining a dam section according to the gate dam outline, the side slope ratio and the width size of the bottom of a foundation designed by a construction drawing, so that an excavation opening side line of the gate dam foundation is discharged on site.
3. The construction method of the composite gate dam made of the gelled gravel concrete according to claim 1, wherein in the step S2, a cushion layer with the thickness of 0.5-1.0m is poured on the construction base surface of the cemented gravel dam by using normal concrete, the cemented gravel is filled according to the blocking, layering and striping of the engineering parts during the filling of the cemented gravel, and the construction is carried out after the excavation and the foundation treatment of each part are completed.
4. The construction method for manufacturing the composite gate dam by using the gelled gravel concrete as claimed in claim 3, wherein transverse seams are longitudinally arranged along the gate dam during filling of the cemented gravel, the longitudinal block length is 20-30 m, the strip width is not less than 8m, the layering height is 3m, the templates adopt a large cantilever steel template and a combined steel template, and the layering rolling thickness is 50-70 cm.
5. The construction method of the composite gate dam made of the gelled gravel concrete as claimed in claim 1, wherein the construction method of building the concrete gate dam in S3 is to adopt a horizontal block skip method and a vertical surface layering from bottom to top to pour the concrete gate dam, the concrete gate dam is divided according to the structural design of the parting of the dam sections, water and gap filling materials are buried in the parting between the dam sections, the layering height is 3m, the formwork adopts a 3.0m x 3.0m large steel formwork, the concrete is intensively mixed by a mixing station, a dump truck is transported to a pouring point, an adhesive tape machine or a hoisting device and a suspension tank are adopted to put in a bin, and a manual insertion type vibrator is used for compaction.
6. The construction method of the composite gate dam made of the gelled gravel concrete according to any one of claims 1, 3 or 4, characterized in that the step S2 further comprises joint face treatment, maintenance and quality control, wherein the joint face treatment is specifically a slurry-rich cemented sand gravel area with anti-permeability requirements on the upstream and downstream faces, high-pressure water blasting is adopted until sand grains and small stones are exposed, secondary pollutants are eliminated before mortar or mortar is paved on the joint face during construction, cemented sand gravel is immediately covered after mortar paving, a layer of mortar is paved after the joint face treatment is completed and qualified through acceptance, and then a layer of cemented sand gravel is paved; during maintenance, spraying is adopted for surface moisture compensation or tarpaulin covering, the surface is kept not to be whitened, and when the temperature is low, a maintenance cushion is used for covering, so that cemented sand gravel is prevented from being frozen; the quality control specifically comprises the steps of adopting advanced means based on ultra-wideband or Beidou satellite positioning, high-definition video monitoring, non-contact measurement, a mobile terminal and the like to collect and analyze construction dynamic information in real time, bringing all links of raw material mining, mixing production, mixture transportation, warehouse surface rolling operation and the like of cemented sand gravel into monitoring, and constructing a cemented sand gravel dam construction quality monitoring and early warning system by combining corresponding quality control standards.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244822A (en) * | 2017-06-12 | 2017-10-13 | 四川大学 | Richness starches the method that the cementing sand gravel that vibrates is prepared and constructed for antiseepage protection structure |
| CN108018830A (en) * | 2017-12-07 | 2018-05-11 | 四川大学 | A kind of gravity type cemented gravel dam and its construction method |
| CN110820750A (en) * | 2019-11-20 | 2020-02-21 | 西藏开投金桥水电开发有限公司 | Self-compacting concrete construction method |
| CN110847125A (en) * | 2019-12-04 | 2020-02-28 | 中国水利水电科学研究院 | Seepage-proofing construction method for dam body of cemented sand gravel dam built on sand gravel foundation |
| US10815631B1 (en) * | 2019-05-29 | 2020-10-27 | China Institute Of Water Resources And Hydropower Research | Method for cemented material dam construction based on whole-process quality control |
-
2022
- 2022-05-30 CN CN202210598599.8A patent/CN114855710A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244822A (en) * | 2017-06-12 | 2017-10-13 | 四川大学 | Richness starches the method that the cementing sand gravel that vibrates is prepared and constructed for antiseepage protection structure |
| CN108018830A (en) * | 2017-12-07 | 2018-05-11 | 四川大学 | A kind of gravity type cemented gravel dam and its construction method |
| US10815631B1 (en) * | 2019-05-29 | 2020-10-27 | China Institute Of Water Resources And Hydropower Research | Method for cemented material dam construction based on whole-process quality control |
| CN110820750A (en) * | 2019-11-20 | 2020-02-21 | 西藏开投金桥水电开发有限公司 | Self-compacting concrete construction method |
| CN110847125A (en) * | 2019-12-04 | 2020-02-28 | 中国水利水电科学研究院 | Seepage-proofing construction method for dam body of cemented sand gravel dam built on sand gravel foundation |
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