CN1353237A - Method for piping-type sand collection in river, shifting silt from reservoir and treating river and desert - Google Patents
Method for piping-type sand collection in river, shifting silt from reservoir and treating river and desert Download PDFInfo
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Abstract
A method for piping-type sand collection in river, shifting silt from rever bed and bringing river and desert under control is disclosed. A sand collecting dike and a pool are built, and the said dike has piping tubes for introducing the sand to the said sand collecting pool. The piping tubes are arranged in the dike of reservoir for discharging the silt deposited in the reservoir. The piping tubes are arranged in both dikes on raised river bed for introducing the silt or sand from river bed to outside of the dike and tamping them to become secondary dike. The present method is applied to the river in desert for bringing desert under control by planting plants on the collected silt. Its advantages are high effect, simple method, and low cost.
Description
The present invention a kind ofly carries out the river piping-type by nature waterpower and adopts sand, cleaning reservoir sedimentation, harnesses a river and the method for sand desert.
The application number that announce on May 12nd, 1993 " Gazette of Patent for Invention " is 91110667.7, name is called the patent application of " hydraulic Sorting method for riverbed alluvial gold ", disclosing a kind of carrying capacity that utilizes natural flows gathers and contains the method for auriferous ore, this method is to dig an acclive traverse furrow on the riverbed, the auxilliary bar diagrid of establishing on the ditch, the limit, riverbank is built ore storage tank and is communicated with traverse furrow, when the riverbed flow increases, the sandstone that contains gold or other heavy minerals is transported the bar diagrid under flow action, heavy minerals such as goldc grains fall into traverse furrow with fine sand, flow automatically to ore storage tank, coarse sand, big gravel etc. is then rushed at the downstream.The fine sand that enters ore storage tank is by its gravity flow or rise to ore-dressing practice and sort.If fine sand contains gold very little, do not need to sort, then directly just can transport to the building site and do the building sand use.
Above-mentioned patented method is gathered and is contained auriferous ore or make building sand, owing to be by the collection of nature waterpower, cost is very low, and environment is not had any pollution, and shortcoming is that the engineering of build traverse furrow is big, once investment is many, the riverbed construction of water is being arranged, and difficulty is big, when the river bigger, when river is not done throughout the year, just can't build traverse furrow; Requirement to the section gradient is also relatively harsher, is not easy to promote, and the disposal ability of bar diagrid is limited in addition, and is excessive when river discharge, and when carrying sandstone above certain limit secretly, bar grizzl(e)y will be hindered extremely loses function.If the mud content of fine sand is higher, said method just can not be sloughed it effectively.Therefore, as the building sand of gathering, this patent scheme still haves much room for improvement on the structure of ore storage tank.
The Huanghe valley in China, because the deposition of mud, the riverbed is raised year by year, forms the hanging river that exceeds tens meters in Plain, two sides, in case dyke breach will cause the calamity of the item that goes out to local people.Solve the way of topic around here, only plant trees and grass in the upstream area at present, increase vegetation, reduce soil erosion, another disappears exactly and increases thickening both sides river levee long-pendingly, makes river levee follow the riverbed and increases gradually, both exhausts the people and drains the treasury like this, increases disaster danger again.
Reservoir is that people build the water conservancy projects of irrigating or generating electricity on the valley floor, because design the time is not considered the removing problem of depositing to cause the sediment deposition of many decades to clear up in the storehouse in, storage capacity is more and more littler, and what have loses function.How to remove reservoir sedimentation, prolonging reservoir service life is the important topic that people do not resolve so far.
The desert why can not growing plant mainly be because the space of layer of sand is big, water and steam can't contain long-pending therein, groundwater table is low, root system of plant absorbs less than water, certain wind strong wind frequency, and the temperature height also is a major reason, because the layer of sand space is big, can not be moisture, cause the many rivers in the desert to stop midway, form dive river, ground.If people can change the structure of layer of sand on the desert, its space is diminished significantly, be enough to contain the ponding branch, just can make the desert become the oasis so in the area that the river is arranged.Yet, also do not have such technical scheme to occur so far.
Purpose of the present invention will propose a kind ofly once to invest lessly exactly, and cost is low, and the river piping-type that can effectively regulate the silt particle ratio adopts sand, cleaning reservoir sedimentation, harness a river and the method for sand desert, with shortcoming or the deficiency that overcomes prior art.
This method of adopting sand by the river piping-type proposed by the invention is characterized in that:
(1) build whaleback on the riverbed, storage sand pond is built in the dike outside;
That (2) advances on the whaleback that installing connects riverbed and storage sand pond advances the blowout pipe;
(3) outlet in storage sand pond is lower than the also oriented muddy water outlet that effluxes that enters the mouth.
The height that advances the blowout tube inlet be the common flood-peak stage in riverbed at the middle and upper levels.
Advancing the blowout pipe can be the adjustable pipe that vertical height can be regulated.
Advance the interior diameter 1-2 rice of blowout pipe, and be provided with gate valve.
The reverse angle that advances blowout pipe axial line and riverbed main channel centreline space is less than 90 degree.
The pond outlet of storage sand communicates with the downstream and is provided with control pool inner water flow velocity degree and prevents the muddy water regulation and control dike that river pours in down a chimney, and establishes in the dike and regulates gate valve or weir plate.
Advance whaleback and store the sand pond to be located at overbank place that two rivers cross, advance the blowout pipe towards a river.
The method of this piping-type cleaning reservoir sedimentation that the present invention proposes, it is characterized in that in dam body pre-buried or build flat let out to become silted up gush pipe, gush the pipe two ends and all establish gate valve.
The twice intervalve that gushes pipe is established a grout pipe, logical block clearing high-pressure water pipe in the pipe.
The method that this piping-type that the present invention proposes is harnessed a river, it is characterized in that establishing and gush pipe in the two sides, riverbed of raising reason, the korneforos risen, and silt particle is guided to river levee outside deposition and compacting successively is bank protection, trench digging is introduced downstream Gui He with clarification of water in the bank protection, repeats once such measure at a certain distance.
Gush the tube inlet height and be generally and contain the more flood peak height of mud at the middle and upper levels, gush the pipe import and gate valve is all established in outlet, and establish grout pipe.
The method that this piping-type that the present invention proposes is administered the desert, it is characterized in that in the river of the desert region of flowing through or the two sides of mountain torrents reason is established and gushed pipe, with the mud at the middle and upper levels of river or mountain torrents guide to the outside be deposited as not can seepage thin mud argillic horizon, the plantation drought resisting rank vegetation is consolidated water and soil on sedimentary deposit, enlarges fluid-tight thin mud argillic horizon so piecemeal piecewise and in time afforests.
When the thin cement content in river hangs down, manually fell and transport clay and flow two sides covering formation impervious layer along the river, irrigation channel water is irrigated the plantation vegetation, and is firm piecewise piecemeal.
The major advantage that the present invention is used for adopting sand is to build traverse furrow, invests for a short time, and storage Sha Chi and the construction of gushing pipe are not subjected to the influence of river, all can implement on the great rivers, and traverse furrow is adopted the sand rule and is confined to little river or intermittent stream.In addition, there is the gradient in the storage sand pond that piping-type is adopted the sand method, can allow thin mud floats from the top layer with current in the sand, and the gained sand setting is regulated mud content easily, can guarantee effectively that sand meets architectural requirement.
The method of piping-type cleaning reservoir sedimentation, can solve the problem that reservoir sedimentation can't be removed, the season that occurs mountain torrents in the reservoir upstream, open flood discharge and gush pipe, just can make for many years the bottom of the reservior full scale clearance at short notice of depositing, safety to dam is then had no effect, and old reservoir is increased the service life, and recovers original storage capacity.This method not only can be suitable for new reservoir, and the pre-buried old reservoir that gushes pipe is not applicable yet for having, as long as when retaining drops to the appropriate location in the storehouse, digs eye in dam body, and reason is established and gushed pipe and get final product.
The method that piping-type is harnessed a river can effectively be drained riverbed sludge, prevents to aggrade, and also can thicken simultaneously and increase river levee, has also shunted peak flood flow in a way, alleviates downstream impact, not only effectively but also save money.
Piping-type is administered the method in desert, can at first form the fluid-tight mud argillic horizon of one deck in the desert region of both sides, river, and the plantation vegetation is built vegetation, enlarges fluid-tight covering layer then gradually, reaches low-cost purpose of administering the desert piecewise.
Accompanying drawing 1 is the layout plan that piping-type of the present invention is adopted the sand facility.
Accompanying drawing 2 is A-A sectional drawings.
Accompanying drawing 3 is B-B sectional drawings.
Accompanying drawing 4 is C-C sectional drawing (when the spoil disposal mouth of pipe is established flashboard).
Accompanying drawing 5 is muddy water regulation and control dike C-C sectional drawings when being weir plate.
Accompanying drawing 6 is muddy water regulation and control dike vertical views when being weir plate.
Accompanying drawing 7 is graph of relation of certain river sandstone granularity and upper reaches, riverbed layer thickness when playing flood peak.
Accompanying drawing 8 is cross-sectional drawings that piping-type of the present invention is harnessed a river.
Accompanying drawing 9 is structure charts that pipe is gushed in row's silt in the river levee.
Accompanying drawing 10 is cross-sectional drawings that piping-type of the present invention draws the improvement desert of becoming silted up.
Accompanying drawing 1-6 represents that the river piping-type adopts the layout and the section situation of sand method.Each label implication is as follows among the figure:
Riverbed, 1-tributary; 2-gushes the pipe closer valve; 3-advances whaleback; 4-gushes pipe; 5-storage sand pond; The 6-major river bed; 7-divides separation levee; 8-muddy water regulation and control dike; 9-mud pipe front brake; 10-flashboard limit base; 11-flashboard crane; The 12-handwheel; The 13-screw rod; The 14-mud pipe; 15-mud pipe flashboard; 16-spoil disposal flashboard frame; 17-spoil disposal lock handwheel; 18-spoil disposal lock screw rod; 19-spoil disposal weir plate.
Accompanying drawing 8-9 represents cross section that piping-type is harnessed a river and the situation of gushing the pipe closer door.Wherein the label implication is:
The riverbed that 20-will administer; The 21-river levee; 22-drainage ditch; 23-newly builds and adds dyke strengthening; 24-ground; 25-gushes pipe front brake support; The 26-high-pressure water pipe; The 27-grout pipe; The 28-operating platform; 29-draws the back flashboard that becomes silted up; 30-draws the back flashboard fixed frame that becomes silted up; 31-draws the back flashboard positive stop strip that becomes silted up.
Accompanying drawing 10 expressions are drawn the situation that mud is administered the desert with gushing pipe from the river, among the figure:
On the 32-desert or the river of desert edge; The river levee in river, 33-desert; The 34-covering layer that deposits; 35-clear water layer; The 36-drifting sand layer; The 37-phreatic line.
Embodiment one
The flow through maximum stream flow at Kaiyuan City Changhong bridge place of domestic Nanpanjiang River is 3300M in Yunnan
3/ S, general time flow is 2400-3000M
3/ S, average silt content reaches 1%, and the local common people eluriate building sand throughout the year in the korneforos, and labour intensity is very big, and production efficiency is low.By shown in the accompanying drawing 1-6 herein joint opposite bank, Lu Jiang tributary overbank place with steel concrete build into whaleback, divide separation levee, muddy water regulation and control dike and long 250 meters, wide 50 meters, dark 3 meters storage sand pond, about 1% the gradient that the pond is low.Muddy water regulation and control dike was not established before this, directly be communicated with the main stem downstream, because of river pours in down a chimney, cause that sand setting washes away and the pond in formation mud.After the pre-pipe laying that makes into as shown in Figure 4 add flashboard structure.Certainly preferably make the weir plate formula structure shown in Fig. 5-6 into, so that according to the progressive additive of layer of sand and block-by-block adds stifled weir plate.Flood peak is in the phase, the distribution of korneforos silt particle granularity generally be thick gravel in lower floor, thin mud is on the upper strata, sand is in the middle level, according to this rule, when measuring with specific device that into rainy season is played flood at the whaleback place, the roughly distribution relation between riverbed fluid layer thickness and grit size as shown in Figure 7, curve relation figure in view of the above, the internal diameter of determining to gush pipe is 1.5 meters, the mouth of pipe is placed the place of 3-4.5 rice at the bottom of the riverbed, allow sand grains grade of this height just meet the requirement of GB GB/T14684, be about 0.16-4.6MM.By this parameter in advancing whaleback pre-buried 6 gush pipe, in fact two pipes that only draw among the figure can increase and decrease as one sees fit.Each tube mouth is all established flashboard control.
Rainy season for the first time during flood peak because the mud at upper reaches, river, dirt, foreign material are more is involved in the korneforos, should not get sand this moment, wait for the second time or for the third time flood peak come can open a sluice gate into sand temporarily, allow sand water enter storage sand pond, because flow is big, contain the sand height, clean sand is very fast to be mountain peak shape accumulation along the pond length direction, wraps and next thin mud, being granularity then flows away from the upper strata with water less than mud, rock chip and the clay etc. of 0.08MM, flows out storage sand pond on the mud pipe of muddy water regulation and control dike or weir plate.About two hours, close the first floor mud pipe, behind the heavy full sand in storage sand pond, close earlier and gush the pipe sand inlet, close mud pipe or stifled fully top slice subsequently.This process generally just can be finished in the period at a flood peak, about 3-4 hour.
Through actual measurement, the gained sand setting, evenly clean, there is not canebreak, there are not foreign material such as coal cinder, slag, the content of mud and ball clay meets the requirement of above-mentioned GB fully respectively below 4% and 1%.
Adopt sand in this way, pollution-free, one-time investment is little, cost of production is extremely low, and efficient is high, and this example was just adopted for buildingly with side surplus the sand 30,000 in about 4 hours, be several ten thousand times that sand is adopted in artificial elutriation,, in each time flood peak period, all can gather if can in time soar in storage sand pond.
Embodiment two
The somewhere reservoir is built in the mountain valley, dam is built at the mouth of a valley and is located, because the many soil properties in massif top layer, reservoir area, and loose, it is heavy to contain silt particle in the mountain torrents, and dam is not got rid of the facility of alluvial, cause alluvial more and more, after building up the sixties, it is nearly 60% that the useful capacity of reservoir has reduced, had a strong impact on the function of hydropower station and irrigation.
Adopt method as shown in Figure 9, select the dry season, the water in the reservoir is drained, dig a circle hole in dam body, adopt the way of prefabricated or pouring to form the pipe that gushes that crosses dam body, caliber is generally 1-2 rice, the import department of gushing pipe is flat with the bottom of the reservior, inserts in the sediment deposit.Gush mouth of pipe place the first road gate is set, flashboard is connected on the handwheel frame on the operating platform with a long screw rod.First banister is established a grout pipe behind the door and is gushed pipe and communicate, give to gush when doing leak stopping and pour into mud in the pipe, insert a high-pressure water pipe in the grout pipe again, prepare against and remove the interior earth of pipe etc. in the time of to open a sluice gate desilting smoothly, the suitable for reading of grout pipe is located on the operating platform, so that operation, when the appearance of preparing for the worst simultaneously was unexpected, the water under high pressure that gushes in the pipe was unlikely from the ejection of grouting mouth.The second road gate is established in the exit of gushing pipe, closes the usefulness of filling when preparing against to the ipe grout leak stopping, simultaneously as the anti-dangerous gate in second road that gushes pipe.This gate is installed in and draws on the back flashboard fixed frame that becomes silted up and have corresponding positive stop strip to limit flashboard and can only move up and down, and fixed frame then is fixed on and gushes on the pipe.
All places surplus original alluvial 30 in the above-mentioned reservoir, adopt the method that the Guan Yigen that gushes of 1.5 meters of interior diameters respectively is set in the dam body two ends, rainy season is interim earlier with the sediment deposit at artificial loose tube mouth place, and along with the arrival of mountain torrents, depositing incomparably more than 20 in the storehouse just was excluded outside the storehouse within one day.Then close and gush pipe two ends gate, pour into dense thickened drilling fluid, allow moisture content gradually from the slit that goes out port strobe condensate drain solid tight, give retaining in the storehouse.After this every cleaning in 1 year once, just the normal capacity of reservoir can have been kept.
For the dam of newly building, the employing said method pre-sets to gush manages the normal desilting that can guarantee reservoir with corresponding gate.
Embodiment three
Flow through the Yellow River section between two provinces of Shandong, Henan, the earth that has several hundred million cubes every year is under the band of upstream, and alluvial raises the riverbed in the riverbed year by year, the location that has tens of rice above ground level, become the Milky Way that is suspended on local resident's head and river levee washed away book more and more.In case breach a dyke, disaster is beyond imagination.
Suppose to use the method shown in Fig. 8-9 to administer, just can be used on the way that the river levee embedded set gushes pipe, the thin mud of korneforos and coarse sand are guided to the river levee both sides by a certain percentage to be piled up in order, and successively tamp with the mode of building a dam and to form Fig. 8 part that dotted line encloses, become and clap the bank protection that adds, both mediate the serious pressure of channel aggradation, reinforced existing river levee again.Generally be that korneforos thin mud is at the middle and upper levels drawn in river levee two outsides along long-pending with gushing pipe.Because thin mud has big viscosity, be difficult for permeable, can on compacting layer, build canals after the compacting and guide clear water into downstream and be included into the river, so successively along long-pending, successively compacting just can add reality with river levee, and the riverbed also can greatly reduce alluvial, add the aggregate measures such as planting trees and grass of upstream area, just can thoroughly administer.
Embodiment four
Why not the desert sward wood, is because the space in the sand body is bigger, and mobile strong, moisture can not be retained in sand body.Underground water under drifting sand layer covers also is easy to after being heated evaporate by layer of sand, and rainfall has leaked out to the deep certainly soon.Be difficult for permeable covering layer if can form one deck artificially on drifting sand layer, allow top water stay to such an extent that live, evaporate the water that comes up below and also can contain to such an extent that live, the root system of plant just can therefrom be drawn into moisture content and nutriment, just can keep growth.
Draw the edge of the dried nefud of sign indicating number at the municipal Plutarch of Xinjiang of China, around high mountain, there is various rivers to flow to the innerland, desert from high mountain, draws the flow in rivers such as Ka Shihe, Ke Liya river, Che Erchen river also very big as noise made in coughing or vomiting, enter the just latent underground undercurrent river that becomes down of desert hundreds of kilometer.
If adopt method as shown in figure 10, thin mud, mud that rainy season, flood was carried secretly are guided to the area, both sides that is lower than the riverbed form and stay to such an extent that live the covering layer of water with gushing the tube side formula, cover drifting sand layer.When overburden cover reaches 1-2 rice, reach in the above to plant and go up the rank vegetation, just can on covering layer, form oasis very soon.In this way, two sides are administered piecemeal piecewise along the river, manually ship earth in addition from afar and cover, and just can form the wide green belt of 1-2 kilometer very soon in the two sides, river, on this basis, guide river into horizontal expansion sediment deposit coverage rate.Finally reach the purpose of administering fully.
Claims (13)
1, a kind of river piping-type method of adopting sand is characterized in that:
(1) build whaleback on the riverbed, storage sand pond is built in the dike outside;
That (2) advances on the whaleback that installing connects riverbed and storage sand pond advances the blowout pipe;
(3) outlet in storage sand pond is lower than inlet and the oriented outlet that effluxes muddy water.
2, by the described sand method of adopting of claim 1, the height that it is characterized in that gushing tube inlet be the common flood-peak stage in riverbed at the middle and upper levels.
3, by the described sand method of adopting of claim 1, it is characterized in that gushing pipe can be the adjustable pipe that vertical height can be regulated.
4, by the described sand method of adopting of claim 1, it is characterized in that gushing the interior diameter 1-2 rice of pipe, and be provided with gate valve.
5,, it is characterized in that gushing the reverse angle of pipe axial line and main channel center, riverbed cable brake less than 90 degree by the described sand method of adopting of claim 1.
6, by the described sand method of adopting of claim 1, it is characterized in that storing the outlet of sand pond and communicate with the downstream and be provided with control pool inner water flow velocity degree and prevent the muddy water regulation and control dike that river pours in down a chimney, establish adjusting gate valve or weir plate in the dike.
7, by the described sand method of adopting of claim 1, it is characterized in that into whaleback is located at overbank place that two rivers cross with storage sand pond, gush pipe towards a river.
8, the method for a kind of piping-type cleaning reservoir sedimentation, it is characterized in that in dam body pre-buried or build flat let out to become silted up gush pipe, gush the pipe two ends and all establish gate valve.
9,, it is characterized in that gushing pipe two intervalves and establish a grout pipe by the method for the described cleaning reservoir sedimentation of claim 8.
10, a kind of piping-type method of harnessing a river, it is characterized in that burying underground and gush pipe in the two sides, riverbed of raising, the korneforos risen, and silt particle is guided to river levee outside deposition and compacting successively is bank protection, and trench digging is introduced downstream Gui He with clarification of water in the bank protection, repeats once such measure at a certain distance.
11, by the described method of harnessing a river of claim 10, it is characterized in that gushing the tube inlet height and be generally and contain the more flood peak height of mud at the middle and upper levels, gush the pipe import and gate valve is all established in outlet, and establish grout pipe.
12, a kind of piping-type is administered the method in desert, it is characterized in that in the river of the desert region of flowing through or the two sides of mountain torrents are buried underground and gushed pipe, with the mud at the middle and upper levels of river or mountain torrents guide to the river outside be deposited as not can seepage thin mud argillic horizon, the plantation drought resisting rank vegetation is consolidated water and soil on sedimentary deposit, enlarges fluid-tight thin mud argillic horizon so piecemeal piecewise and in time afforests.
13,, it is characterized in that when the thin cement content in river hangs down manually fell and transport clay and flow two sides covering drifting sand layer along the river, irrigation channel water is irrigated the plantation vegetation, and is firm piecewise piecemeal by the method for the described improvement sand of claim 2 desert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011288124A CN1153002C (en) | 2001-09-03 | 2001-09-03 | Method for piping-type sand collection in river, shifting silt from reservoir and treating river and desert |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011288124A CN1153002C (en) | 2001-09-03 | 2001-09-03 | Method for piping-type sand collection in river, shifting silt from reservoir and treating river and desert |
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| Publication Number | Publication Date |
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| CN1353237A true CN1353237A (en) | 2002-06-12 |
| CN1153002C CN1153002C (en) | 2004-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011288124A Expired - Fee Related CN1153002C (en) | 2001-09-03 | 2001-09-03 | Method for piping-type sand collection in river, shifting silt from reservoir and treating river and desert |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165277B (en) * | 2006-10-16 | 2011-04-06 | 杨琪翔 | Reservoir dredging method |
| CN108330900A (en) * | 2015-05-06 | 2018-07-27 | 苏州汇诚智造工业设计有限公司 | The energy dissipating of gear drive flow, power generation and sand-catching apparatus |
| CN110284457A (en) * | 2019-07-02 | 2019-09-27 | 河海大学 | A method of administering channel deposits deposition |
| RU2728676C1 (en) * | 2019-06-27 | 2020-07-30 | Федеральное государственное бюджетное научное учреждение "Российский научно-исследовательский институт проблем мелиорации" (ФГБНУ "РосНИИПМ") | Water intake structure for irrigation network with flat girderless gate and automatic water supply to channels of low order |
| CN114606925A (en) * | 2022-03-08 | 2022-06-10 | 张晓钟 | Desert self-flowing sand control method |
| CN116623702A (en) * | 2020-07-28 | 2023-08-22 | 中交路桥华南工程有限公司 | Construction method of underwater bearing platform |
-
2001
- 2001-09-03 CN CNB011288124A patent/CN1153002C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165277B (en) * | 2006-10-16 | 2011-04-06 | 杨琪翔 | Reservoir dredging method |
| CN108330900A (en) * | 2015-05-06 | 2018-07-27 | 苏州汇诚智造工业设计有限公司 | The energy dissipating of gear drive flow, power generation and sand-catching apparatus |
| RU2728676C1 (en) * | 2019-06-27 | 2020-07-30 | Федеральное государственное бюджетное научное учреждение "Российский научно-исследовательский институт проблем мелиорации" (ФГБНУ "РосНИИПМ") | Water intake structure for irrigation network with flat girderless gate and automatic water supply to channels of low order |
| CN110284457A (en) * | 2019-07-02 | 2019-09-27 | 河海大学 | A method of administering channel deposits deposition |
| CN116623702A (en) * | 2020-07-28 | 2023-08-22 | 中交路桥华南工程有限公司 | Construction method of underwater bearing platform |
| CN114606925A (en) * | 2022-03-08 | 2022-06-10 | 张晓钟 | Desert self-flowing sand control method |
| CN114606925B (en) * | 2022-03-08 | 2023-11-28 | 张晓钟 | Desert self-flowing sand treatment method |
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| Publication number | Publication date |
|---|---|
| CN1153002C (en) | 2004-06-09 |
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