CN103850239A - Guided water-jet mountain-cutting land reclaiming and mud solidifying treatment construction method - Google Patents
Guided water-jet mountain-cutting land reclaiming and mud solidifying treatment construction method Download PDFInfo
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- CN103850239A CN103850239A CN201410128073.9A CN201410128073A CN103850239A CN 103850239 A CN103850239 A CN 103850239A CN 201410128073 A CN201410128073 A CN 201410128073A CN 103850239 A CN103850239 A CN 103850239A
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Abstract
The invention provides a guided water-jet mountain-cutting land reclaiming and mud solidifying treatment construction method. The construction method comprises the steps of constructing in middle and lower narrow sections of a valley, digging out draining wells in a plurality of stages of earth dams, excavating a guide groove in the top of the mountain, feeding water and pushing earth into the guide groove, blending the mud with earth and a solidifying agent, pumping water out of the draining wells, filling earth on the upper part of the mud, spreading and rolling the filled earth. The guided water-jet mountain-cutting land reclaiming and mud solidifying treatment construction method belongs to the technical field of mountain-cutting land reclamation and is applicable to the space engineering of the hilly city development land; the construction method is novel in idea, achieves the purposes of reduction of construction time, reduction of construction cost and low environmental pollution, and promotes the development of the water-jet mountain-cutting land reclaiming technology in the municipal engineering.
Description
Technical field
The invention belongs to and cut mountain and make ground technical field, relate in particular to the punching of a kind of guiding water and cut that ground is made on mountain and slurry curing is processed construction method, be specially adapted to mountain city and expand land used space engineering.
Background technology
Along with social fast development, urban population sharply increases, and Development of China's Urbanization deeply advances, a Urban land brass tacks that has become restriction China socio-economic development serious in short supply.In order to promote city harmonious development, expand urban development space imperative.Show according to National Development and Reform Committee investigation: numerous areas such as Shiyan, Hubei, Lanzhou, Gansu, yan-an are numerous and confused proposes to cut mountain and make the development of urban space strategy on ground.The proposition of this strategy means that a set of scientific and reasonable complete technical system of needs supports.At present land development arranges, and especially digs mountain and makes the method for commonly using and mainly contain mechanical equivalent of light excavation method, water jetting and blasting procedure.The shortcoming of mechanical equivalent of light excavation method is that speed of application is difficult to meet objective demand slowly, machine thunders, and airborne dust is difficult to avoid, the chaotic state in which corrupt practices prevail of whole city, and people's daily life environment is subject to severe jamming.The drawback of explosion is that excavation produces certain slungshot, shock wave, explosion poison gas and noise, has a strong impact on the safety of building and people's lives and properties.Water jetting is draw water and send into high-pressure pump with submersible pump, washes away the soil body by spray gun, forms mud, then inhales muddy water by slush pump and arrange outward, and muddy water is piled up bleed, also needs manually to repair and dig.This water jetting belongs to water punching all over the mountains and plains, does not rationally utilize efficiently water source, causes the water content of mud very high, and washes away with slush pump suction muddy water and make construction costs high with spray gun, not yet forms the construction technology of a set of maturation.In addition, water punching cuts that the raw soil property of banketing of mountain products is poor, and water content is high, bearing capacity of foundation soil is low and the modulus of resilience is all less, the construction of cannot directly marching into the arena of personnel and machinery, also imperfection of the foundation treatment technology of mud filling.Because water jetting can be avoided airborne dust and can alleviate again on the impact of urban life environment the noises that a large amount of machinery produces, and speed of application is fast, is adapted at adopting in city development land resources project.But the large ditch depth in mountain, loess mountain area, is population concentration residential community at the bottom of the exit or entrance of a clitch and slope, must cut the mud that chevron becomes to water punching and process, cause calamity in order to avoid form mudflow.In order to meet the needs of the objective development in city and to reduce construction costs, to existing water, punching is cut mountain and is made the construction technology on ground and improve, and according to topography and geomorphology, builds a dam and block mud in gully, and mud conditioning method is proposed targetedly, to ensure the stability of ground and to reduce settlement after construction.In sum, the proposition of suiting measures to local conditions meets the mountain of cutting of Canal in Loess Area, and to make ground technology extremely urgent, and has important society and economic benefit.
Summary of the invention
The object of the invention is to improve the punching of a kind of guiding water and cut that ground is made on mountain and slurry curing is processed construction method.
The present invention is that guiding water punching cuts that ground is made on mountain and slurry curing is processed construction method, the steps include:
(1) build multistage earth dam 3: multistage earth dam 3 is built in the narrow location of middle and lower reaches in mountain valley, desurfacing turf, fill the dam foundation, then with the machinery 4 transport soil bodys, fill by hierarchical design thickness, shakeout, roll and sprinkle water; Repeat the Down-Up successively construction of above process, until final Site Design absolute altitude;
(2) build catch pit 6: at the design attitude of the interior definite catch pit 6 of multistage earth dam 3, with the hole of machinery 4 excavation desired depths, chimney filter 7 is placed in hole and lays around sand pocket 8, set up steel pipe frame fixes chimney filter 7 and sand pocket 8 colligations simultaneously, upwards construct from bottom, until the absolute altitude of catch pit 6 exceeds the most accurate Site Design absolute altitude 0.5m ~ 1.0m, form catch pit 6;
(3) excavation guiding groove 2: excavate with machinery 4 guiding groove 2 that leads to gully on mountain top;
(4) water delivery and soil-shifting: draw water in guiding groove 2 with high-pressure pump, the machinery 4 excavation soil bodys, and be transported in guiding groove 2, water rushes loose earth and forms mud 9, flows to multistage earth dam 3 along gully;
(5) admix the soil body and curing compound: when mud 9 injects multistage earth dam 3, edge arranges conveyer belt 5 in massif 1 edge around, and the soil body and curing compound are admixed in the mud 9 in multistage earth dam 3 by conveyer belt 5; Edge is the position of massif 1 edge moving conveyor belt 5 around, admixes the soil body and curing compound from diverse location;
(6) draw water: mud 9 flows in the process of multistage earth dam 3, the sand pocket 8 around moisture in mud 9 permeates gradually and collects in chimney filter 7, the water in chimney filter 7 is extracted out with submersible pump, and water is pumped into mountain top guiding groove 2, carries out secondary recycling;
(7) banket 10: after mud 9 highly reaches filling design elevation, stop injecting mud 9, send into and banket 10 to mud 9 tops by the position of moving conveyor belt 5;
(8) shakeout and roll: constantly banket 10 and 4 shakeout, roll with machinery, until final Site Design absolute altitude, and constantly by the ponding extraction in catch pit 6, deliver in mountain top guiding groove 2, again reuse water source, rush the mountain top soil body.
The invention has the beneficial effects as follows: cheap, method is easy, can solve Canal in Loess Area and cut the technical barrier that mountain faces with making.
Brief description of the drawings
Fig. 1 floor map that to be the present invention cut mountain and make ground at mountain area cheuch, Fig. 2 is that the present invention is at the preflood vertical section of mud 9 schematic diagram, Fig. 3 is the vertical section schematic diagram of the present invention after mud 9 injects, Fig. 4 is A-A generalized section of catch pit 6 in Fig. 2, mark in figure: massif 1, guiding groove 2, multistage earth dam 3, machinery 4, conveyer belt 5, catch pit 6, chimney filter 7, sand pocket 8, mud 9, banket 10.
Detailed description of the invention
Feature of the present invention and correlated characteristic thereof are described in further details by example below in conjunction with accompanying drawing, so that colleague technician understands.
As Figure 1-4, the punching of guiding water is cut mountain and is made ground and slurry curing processing construction method, the steps include:
(1) build multistage earth dam 3: multistage earth dam 3 is built in the narrow location of middle and lower reaches in mountain valley, desurfacing turf, fill the dam foundation, then with the machinery 4 transport soil bodys, fill by hierarchical design thickness, shakeout, roll and sprinkle water; Repeat the Down-Up successively construction of above process, until final Site Design absolute altitude;
(2) build catch pit 6: at the design attitude of the interior definite catch pit 6 of multistage earth dam 3, with the hole of machinery 4 excavation desired depths, chimney filter 7 is placed in hole and lays around sand pocket 8, set up steel pipe frame fixes chimney filter 7 and sand pocket 8 colligations simultaneously, upwards construct from bottom, until the absolute altitude of catch pit 6 exceeds the most accurate Site Design absolute altitude 0.5m ~ 1.0m, form catch pit 6;
(3) excavation guiding groove 2: excavate with machinery 4 guiding groove 2 that leads to gully on mountain top;
(4) water delivery and soil-shifting: draw water in guiding groove 2 with high-pressure pump, the machinery 4 excavation soil bodys, and be transported in guiding groove 2, water rushes loose earth and forms mud 9, flows to multistage earth dam 3 along gully;
(5) admix the soil body and curing compound: when mud 9 injects multistage earth dam 3, edge arranges conveyer belt 5 in massif 1 edge around, and the soil body and curing compound are admixed in the mud 9 in multistage earth dam 3 by conveyer belt 5; Edge is the position of massif 1 edge moving conveyor belt 5 around, admixes the soil body and curing compound from diverse location;
(6) draw water: mud 9 flows in the process of multistage earth dam 3, the sand pocket 8 around moisture in mud 9 permeates gradually and collects in chimney filter 7, the water in chimney filter 7 is extracted out with submersible pump, and water is pumped into mountain top guiding groove 2, carries out secondary recycling;
(7) banket 10: after mud 9 highly reaches filling design elevation, stop injecting mud 9, send into and banket 10 to mud 9 tops by the position of moving conveyor belt 5;
(8) shakeout and roll: constantly banket 10 and 4 shakeout, roll with machinery, until final Site Design absolute altitude, and constantly by the ponding extraction in catch pit 6, deliver in mountain top guiding groove 2, again reuse water source, rush the mountain top soil body.
Described catch pit 6 is made up of the sand pocket 8 of chimney filter 7 and laying around, utilizes the fixing realization of steel pipe frame colligation; The spacing in length and breadth of catch pit 6 is 20m ~ 25m, the steel pipe that chimney filter 7 diameters are 40mm ~ 60mm, the starlike arrangement filter opening of drill diameter 12mm ~ 18mm on tube wall; The tube wall filter screen of double-baging outward, internal layer is fie screen, adopts brass wire gauze or the raw silk cloth of 30 ~ 50 holes/cm, skin is coarse strainer, iron wire cloth or the nylon cloth of employing 8 ~ 10 holes/cm; The thickness of sand pocket 8 is 1m ~ 2m, is in Nylon Bag, to pack the sandstone that particle diameter is 0.25mm ~ 50mm into.
Described curing compound is the material with the fixed performance of water suction acceleration, and its component is lime 40% ~ 50%, cement 22% ~ 25%, flyash 22% ~ 25% and accelerating admixture 6% ~ 10%.
In the mud 9 that the addition that described curing compound is minimum is every cubic metre, be 10kg ~ 30kg.
The present invention considers the townie various factors of impact, to existing water, punching is cut mountain and is made ground technology and improve, adopt the water punching method of guiding, and improve the engineering properties of mud in conjunction with two aspects of physics and chemistry, ground technology is made on the mountain of cutting that has proposed applicable development of urban space.By machinery, the soil body is delivered in guiding groove, guided water that loose earth is washed away by groove, mud is flowed in earth dam with minimum water content, improve the utilization rate of water, omitted the complex process that slush pump water suction is processed, significantly reduce cost.
The multistage earth dam arranging can effectively be tackled mud, reduces mud pressure, has eliminated a large amount of mud and make the Potential hazards hidden danger of earth dam dam break; The catch pit arranging can be discharged the moisture in mud in time, admixes the soil body and curing compound by conveyer belt, has accelerated the discharging consolidation speed of mud, and has reached the reduction of erection time, reduces the object of construction costs.
Claims (4)
1. the punching of guiding water is cut mountain and is made ground and slurry curing processing construction method, the steps include:
(1) build multistage earth dam (3): multistage earth dam (3) is built in the narrow location of middle and lower reaches in mountain valley, desurfacing turf, fill the dam foundation, then use machinery (4) the transport soil body, fill by hierarchical design thickness, shakeout, roll and sprinkle water; Repeat the Down-Up successively construction of above process, until final Site Design absolute altitude;
(2) build catch pit (6): the design attitude of determining catch pit (6) in multistage earth dam (3), with the hole of machinery (4) excavation desired depth, chimney filter (7) is placed in hole and lays around sand pocket (8), set up steel pipe frame fixes chimney filter (7) and sand pocket (8) colligation simultaneously, upwards construct from bottom, until the absolute altitude of catch pit (6) exceeds the most accurate Site Design absolute altitude 0.5m ~ 1.0m, form catch pit (6);
(3) excavation guiding groove (2): excavate with machinery (4) guiding groove (2) that leads to gully on mountain top;
(4) water delivery and soil-shifting: draw water in guiding groove (2) with high-pressure pump, machinery (4) the excavation soil body, and be transported in guiding groove (2), water rushes loose earth and forms mud (9), flows to multistage earth dam (3) along gully;
(5) admix the soil body and curing compound: when mud (9) injects multistage earth dam (3), edge arranges conveyer belt (5) in massif (1) edge around, the soil body and curing compound are admixed in the mud (9) in multistage earth dam (3) by conveyer belt (5); Edge is the position of massif (1) edge moving conveyor belt (5) around, admixes the soil body and curing compound from diverse location;
(6) draw water: mud (9) flows in the process of multistage earth dam (3), sand pocket (8) the around moisture in mud (9) permeates gradually and collects in chimney filter (7), water in chimney filter (7) is extracted out with submersible pump, and water is pumped into mountain top guiding groove (2), carries out secondary recycling;
(7) banket (10): highly reach after filling design elevation until mud (9), stop injecting mud (9), send into mud (9) top banket (10) by the position of moving conveyor belt (5);
(8) shakeout and roll: constantly banket (10) and shakeout, roll with mechanical (4), until final Site Design absolute altitude, and constantly the ponding in catch pit (6) is extracted out, deliver in mountain top guiding groove (2), again reuse water source, rush the mountain top soil body.
2. guiding water punching according to claim 1 is cut mountain and is made ground and slurry curing processing construction method, it is characterized in that: described catch pit (6) is made up of the sand pocket (8) of chimney filter (7) and laying around, utilizes steel pipe frame colligation to fix and realizes; The spacing in length and breadth of catch pit (6) is 20m ~ 25m, the steel pipe that chimney filter (7) diameter is 40mm ~ 60mm, the starlike arrangement filter opening of drill diameter 12mm ~ 18mm on tube wall; The tube wall filter screen of double-baging outward, internal layer is fie screen, adopts brass wire gauze or the raw silk cloth of 30 ~ 50 holes/cm, skin is coarse strainer, iron wire cloth or the nylon cloth of employing 8 ~ 10 holes/cm; The thickness of sand pocket (8) is 1m ~ 2m, is in Nylon Bag, to pack the sandstone that particle diameter is 0.25mm ~ 50mm into.
3. guiding water punching according to claim 1 is cut mountain and is made ground and slurry curing processing construction method, it is characterized in that: described curing compound is the material with the fixed performance of water suction acceleration, and its component is lime 40% ~ 50%, cement 22% ~ 25%, flyash 22% ~ 25% and accelerating admixture 6% ~ 10%.
4. guiding water punching according to claim 1 is cut mountain and is made ground and slurry curing processing construction method, it is characterized in that: in the mud (9) that the addition that described curing compound is minimum is every cubic metre, be 10kg ~ 30kg.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386302A (en) * | 2017-08-22 | 2017-11-24 | 兰州理工大学 | One kind cuts mountain and makes ground device and construction method |
| CN107460866A (en) * | 2017-09-01 | 2017-12-12 | 东南大学 | A kind of big mud sump original position step curing processing method of depth |
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| JP2004204524A (en) * | 2002-12-25 | 2004-07-22 | Shimizu Corp | Consolidation-promotion reclamation construction method and consolidation-promotion reclamation structure |
| CN101560754A (en) * | 2009-04-29 | 2009-10-21 | 北京航空航天大学 | Construction process for blowing-filling sludge and reclaiming land from sea and device thereof |
| CN102322066A (en) * | 2011-06-21 | 2012-01-18 | 福建省长汀县水土保持站 | Three-in-one slope collapse managing method employing slope management, slope lowering and slope stabilization |
| CN102383413A (en) * | 2011-08-31 | 2012-03-21 | 东北大学 | Method for constructing strengthened saturated-flow plastic silt soft soil foundation |
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2014
- 2014-04-01 CN CN201410128073.9A patent/CN103850239B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004204524A (en) * | 2002-12-25 | 2004-07-22 | Shimizu Corp | Consolidation-promotion reclamation construction method and consolidation-promotion reclamation structure |
| CN101560754A (en) * | 2009-04-29 | 2009-10-21 | 北京航空航天大学 | Construction process for blowing-filling sludge and reclaiming land from sea and device thereof |
| CN102322066A (en) * | 2011-06-21 | 2012-01-18 | 福建省长汀县水土保持站 | Three-in-one slope collapse managing method employing slope management, slope lowering and slope stabilization |
| CN102383413A (en) * | 2011-08-31 | 2012-03-21 | 东北大学 | Method for constructing strengthened saturated-flow plastic silt soft soil foundation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386302A (en) * | 2017-08-22 | 2017-11-24 | 兰州理工大学 | One kind cuts mountain and makes ground device and construction method |
| CN107460866A (en) * | 2017-09-01 | 2017-12-12 | 东南大学 | A kind of big mud sump original position step curing processing method of depth |
| CN107460866B (en) * | 2017-09-01 | 2019-02-05 | 东南大学 | A kind of big mud sump original position step curing processing method of depth |
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