CN202139571U - Plant protective river foundation structure - Google Patents
Plant protective river foundation structure Download PDFInfo
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- CN202139571U CN202139571U CN201120217128U CN201120217128U CN202139571U CN 202139571 U CN202139571 U CN 202139571U CN 201120217128 U CN201120217128 U CN 201120217128U CN 201120217128 U CN201120217128 U CN 201120217128U CN 202139571 U CN202139571 U CN 202139571U
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- antiseepage film
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Abstract
The utility model discloses a plant protective river foundation structure, wherein a sand cushion which is 100mm to 300mm in thickness, a HPDE (High Density Polyethylene) impermeable membrane which is 0.25mm to 3mm in thickness, a sand protective layer which is 100mm to 300mm in thickness, and a concrete layer which is jointed by concrete prefabricated blocks are paved on a river bottom and a river slope from bottom to top in sequence; and the dimension of the concrete prefabricated blocks is (200 to 500)*(300 to 1000) *(50 to 200) mm. According to utility model, the HPDE impermeable membrane is directly paved on the plant protective river so that the impermeable membrane can play a good role in proofing the water and proofing the seepage, thus the side slope instability and the foundation sedimentation caused by the river water infiltration of the plant protective river can be prevented; moreover, the practical value is high, the applicability is strong, the engineering cost is relatively low, the needed materials are easily obtained, the material performance is good, the construction process is convenient and the operability is strong, so that the workers can be conveniently and rationally organized for a construction.
Description
Technical field
The utility model relates to a kind of underground foundation structure, specifically, relates to a kind of foundation structure that is used for municipal administration, water conservancy, environmental protection, artificial lake and building underground waterproof engineering.
Background technology
After Hu Chang builds up retaining in the river, under effect of water pressure, be prone to produce vertical seepage, though there is the part soil layer to cover; But the difference of soil thickness, soil property, water permeability; Also different, more breakdown because of osmotic gradient most probably to infiltration influence, form vertical infiltration lane and bigger infiltration takes place; Therefore, be necessary antiseepage is carried out in the Hu Chang river.
The antiseepage common used material is mainly earth material, cement-soil, stone-laying, concrete, bituminous concrete, coating materials etc. at present.
The earth material antiseepage is meant that generally closing soil etc. with cohesive soil, glutinous sand composite soil, dirt, tabia and four is the seepage control measure of material.The earth material antiseepage is China's seepage control measure used for a long time, and this material can be gathered materials on the spot, and material source is abundant, and technology is simple, and is cheap, but because the channel permissible velocity of flow of earth material antiseepage is lower, frost resistance is poor.
Cement-soil be a kind ofly be convenient to gather materials on the spot, barrier performance better, the low-intensity impervious material of easy construction, but because the early strength of cement-soil is low and frost resistance is poor, thereby the cement-soil antiseepage no freeze injury area that should be used to have a moderate climate.
The stone-laying antiseepage has two kinds of mask formula, retaining wall formulas by the form of structure branch.Press material and building method branch, laid dry cobble, placed rockfill are arranged, grout work stone, cemented rock, to grout slabstone etc. multiple.The stone masonry lining cutting have can gather materials on the spot, anti-current speed is big, abrasive resistance is strong, freeze proof and the frost damage prevention ability is strong, and has anti-seepage effect and stronger advantages such as stability preferably.The shortcoming of stone-laying antiseepage is to be difficult for mechanized construction, so construction quality is restive; Cost is not necessarily low, should carry out the economic technology demonstration during employing.
Concrete anti-seepage has good seepage-proof property, roughness is low, intensity is high, be convenient to advantages such as management.Its shortcoming is that the adaptation deformation ability is poor, and is higher in the regional cost that lacks the sandstone material.
The asphalt concrete seepage prevention material belongs to viscous-elastic material.It has advantages such as good impermeability, durability and flexibility.But this material application development is slower, traces it to its cause, and mainly is to have that material source is not enough, plant penetrates and problem such as construction technology strictness.
The coating materials antiseepage is to do the technical measures that anti-seepage of channels engineering reduces or prevent canal seepage with fluid-tight geotextile (being geomembrane), and the kind of geotechnological coating materials is a lot, and polyvinyl (PE), polyvinyl chloride (PVC) etc. are arranged.General commonly used coating materials has two kinds of polyvinyl and polyvinyl chloride; This material has barrier performance good (can reduce leakage loss reaches more than the 90%-95%), adapt to that deformability is strong, light weight, consumption is few, freight volume is little, easy construction, the duration is short, corrosion resistance is strong, the low (1/10-1/5 that is equivalent to concrete anti-seepage of cost; Grout about the 1/10-1/4 of cobble antiseepage) etc. advantage; But the film smooth surface is little with the friction factor of contact surface, and is prone to puncture.
The utility model content
What the utility model will solve is to ooze the technical problem that causes side slope shakiness and foundation settlement easily under the river of Hu Chang river; A kind of Hu Chang river foundation structure is provided, can plays good waterproof, seepage control effect, practical value is higher; Applicability is strong; Construction costs is relatively low, and it is convenient to construct, and workable.
In order to solve the problems of the technologies described above, the utility model is achieved through following technical scheme:
A kind of Hu Chang river foundation structure, the layer of concrete that is equipped with sand cushion, HPDE antiseepage film, sand topping on river bed and slope, river from the bottom to top successively, is spliced by concrete precast block.
The thickness of said sand cushion is 100～300mm, and the thickness of said HPDE antiseepage film is 0.25～3mm, and the thickness of said sand topping is 100～300mm, and said concrete precast block is of a size of (200～500) * (300～1000) * (50～200) mm.
The thickness of said sand cushion is 200mm; The thickness of said HPDE antiseepage film is 0.5mm; The thickness of said sand topping is 100mm, and concrete precast block is of a size of 250 * 500 * 80mm on the said river bed, and concrete precast block is of a size of 300 * 500 * 80mm on the slope, said river.
Said HPDE antiseepage film is provided with the drainage exhaust hole.
The beneficial effect of the utility model is:
(1) the utility model is laid immediately on the HPDE antiseepage film on the Hu Chang river; This antiseepage film can play good waterproof, seepage control effect, can prevent to ooze side slope shakiness and the foundation settlement that causes under the river of Hu Chang river, and practical value is higher; Applicability is strong; Construction costs is relatively low, and material requested is prone to obtain, and material property is better.
(2) work progress of the utility model is convenient, and workable, and the workman that organizes that can be convenient and reasonable constructs.
(3) in HPDE antiseepage film the upper and lower sand cushion is set respectively, can plays levelling, be convenient to connect and protect the effect of antiseepage film.
(4) adopt concrete precast block to pave into layer of concrete, sound construction, saving cost, construction and maintenance are more convenient, time saving and energy saving.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
Among the figure: 1: sand cushion, 2:HPDE antiseepage film, 3: sand topping, 4: concrete precast block.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to describe in detail:
Shown in accompanying drawing, present embodiment has disclosed a kind of Hu Chang river foundation structure, is equipped with the layer of concrete that sand cushion 1, HPDE antiseepage film 2, sand topping 3, concrete precast block 4 are spliced from the bottom to top successively on river bed and slope, river.Welding manner is adopted in the connection of HPDE antiseepage film 2, and every HPDE antiseepage film 2 is reserved the 15cm right sides as seam.
The main component of HPDE antiseepage film is 97.5% high density polyethylene (HDPE); Auxiliary materials such as about 2.5% carbon black, age resister, antioxidant, ultra-violet absorber, stabilizing agent; Through particular arrangement; Use state-of-the-art in the world full-automatic carpenter's production equipment at present, process through three-layer co-extruded technology, all products are all carried out production according to U.S. GRI standard and ASTM testing standard.This material has the inaccessible elongation per unit length of other high molecular synthetic materials on physical property, anti tear and anti-puncture ability and extremely low transmission coefficient can overcome the destruction because of geology is sunk or differential settlement brings to greatest extent; Have good chemical stability, can resist the corrosion of more than 80 kind of strong acid-base chemical mediators such as various acid, alkali, salt, oils; Have higher rigidity and toughness, mechanical strength is good, and resisting environmental stress and cracking and tear-resistant strength character are good; Good uvioresistant, ageing-resistant ability, but long term exposure is in atmosphere; Can resist various biological agents, not recruit damaged by rats, damage by worms, mildewproof bacterium; And be a kind of new material of asepsis environment-protecting, raw material that is adopted and polymeric additive are non-toxic material, do not have the volatilization smell.
The thickness of sand cushion 1 in 100～300mm scope, the thickness of HPDE antiseepage film in 0.25～3mm scope, the thickness of sand topping in 100～300mm scope, the size of concrete precast block in (200～500) * (300～1000) * (50～200) mm.In the scope.The thickness of sand cushion is 200mm in the present embodiment, and the thickness of HPDE antiseepage film is 0.5mm, and the thickness of sand topping is 100mm, and concrete precast block is of a size of 250 * 500 * 80mm on the river bed, and concrete precast block is of a size of 300 * 500 * 80mm on the slope, river.
HPDE antiseepage film 2 is carried out anchoring in Po Ding both sides, Hu Chang river through anchoring trench backfill compacting.
The process of deployment of brief description present embodiment:
Carry out Hu Chang river soil excavation, draining earlier, and the laying of sand cushion 1.Adopt 1.6m according to geological condition
3The method of hydraulic backhoe excavation, bright row's precipitation is constructed.Reserve the thick earthwork of one deck 300mm during excavation with artificial clear end levelling and Qing Po; In order to prevent that rainwater flows into foundation ditch outside the rainy day riverbed, the special top on every side on the foundation ditch slope is provided with the waterproof slope, and behind rain, accelerates the drainage works of ponding outside river bed and the riverbed, prevents the rain drop erosion side slope, influences the stable of side slope.
Before sand cushion 1 was laid, the employing manual work was cleaned out river bed, He Po and is carried out smooth.During if any the gutter, the geotextiles 800mm that on the rubble of gutter, lays 200 grams is wide, carries out the laying of 2 times sand cushions 1 of HPDE antiseepage film then; Lay the thick sand cushion 1 of 200mm, and artificial foreign material in the sand cushion 1 are chosen and sand cushion 1 is paved, to prevent to damage HPDE antiseepage film 2; Adopt plate vibrator that the sand cushion of laying 1 is carried out vibratory compaction, and use the floating rule levelling.
The sequence of construction that HPDE antiseepage film 2 is laid comprises laying-overlap joint-welding-scene detection.Before laying; Earlier substrate is inspected for acceptance; Lay the interior no tree root of substrate vertical depth 25cm, rubble, stone, concrete particle, chips of glass etc. and might prick the foreign material of bad HPDE antiseepage film 2, and before the film of shop, HPDE antiseepage film 2 presentation qualities are opened the bag inspection.HPDE antiseepage film 2 is laid from levee crown to toe, and levee crown is spread to concrete precast block 4 outer edges that bind.Note the relaxation appropriateness when spreading film, avoid firmly concentrating and artificially damage, require HPDE antiseepage film 2 and blinding layer bonding surface to coincide smooth.Welding method is taked in the connection of HPDE antiseepage film 2, and the every limit that HPDE antiseepage film 2 is reserved about 15cm makes the seam orientation be parallel to maximum leg wire of slope, promptly arranges along gradient direction.Use the ZPR-210V type or improve the heat seal of creeping automatically and be welded to connect; This machine has two electric iron, and belt pulley is exerted pressure through anti-adhesive tape, the roll extrusion plastic film; Be welded into two and slightly be the 10mm bonding wire; Two line clear distance 16mm rosin joint must not occur, leak weldering or cross weldering, and that the two-layer HPDE antiseepage film 2 of connection should overlap is open and flat, releive.Welding is preceding must remove fouls such as face sand, earth, guarantees the face cleaning, can weld after film and the laying of film joint are smooth; The welding machine operating personnel should observe welding quality at any time, and according to the variation adjustment welding temperature and the speed of travel of environment temperature, general temperature is transferred to 250～300 ℃, speed 2～3m/min.The per pass weld seam carries out quality examination after accomplishing immediately, and inspection method is main with range estimation, as pinpoints the problems, and carries out mark and carries out repair welding immediately.
Should note problem in the construction: connect when laying, certain attention is laid smooth-going, and the degree of tightness appropriateness to adapt to a small amount of depression, will be checked the place before the film of shop, guarantees not have sharp-pointed foreign material such as stone; The seam firm welding; The staff should wear the soft end, walking shoes; Before the film welding, below overlap joint geotextiles should be paved overlap joint well, and after welding was accomplished, film top geotextiles was paved overlap joint, glues with adhesive tape; When HPDE antiseepage film 2 is layed in corners of building, should note suitable cutting, in order to avoid that HPDE antiseepage film 2 is connected with surrounding building is not tight.
HPDE antiseepage film 2 has been laid, and every 12m installs the plastic draining steam vent that bore is 50mm in the river bed by manual work.The drainage exhaust hole is installed in the position apart from about the HPDE antiseepage film 2 welding position 40cm, before the installation, earlier geotextiles on the HPDE antiseepage film 2 is torn, and is digging a hole about diameter 65mm on the HPDE antiseepage film 2, water is leaked fill in the geomembrane and tighten fixing.The absolute elevation 4m position on river, both sides slope, every 5m by manual work with the antiseepage film hole that to cut a diameter be 50mm.The artificial afterwards anchoring ditch that respectively digs a 400mm * 400mm in Po Ding both sides, Hu Chang river, HPDE antiseepage film 2 has been laid the artificial backfilling compaction in back.
On HPDE antiseepage film 2, carry out the laying of sand topping 3 again, the thick sand of HPDE antiseepage film 2 upper berth 100mm.Manual work is chosen foreign material in the sand topping 3 and bed course is paved, and prevents to damage HPDE antiseepage film 2.
Adopt concrete precast block 4 to lay on river bed and river slope at last, concrete precast block 4 by the standard backguy then the segmentation block-by-block pave.Concrete precast block 4 slides to the end, slope through the slideway of channel-section steel welding by the top, slope, carries out paving of concrete precast block 4, totally 40 in slideway, each long 10m, wide 0.5m.Each slideway is long by 4 10m, 10 long channel-section steels of 0.5m are welded, and every channel-section steel notch is all placed outwardly, the channel-section steel that 10m is long, and two stand up two and keep flat, and do bottom girder by the channel-section steel of 0.5m and weld.
Those skilled in the art should know, and the utility model not only can be used for the waterproofing in Hu Chang river, in municipal administration, water conservancy, environmental protection, artificial lake and building underground waterproof engineering, can use.
Although combine accompanying drawing that the preferred embodiment of the utility model is described above; But the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, can also make the concrete conversion of a lot of forms, these all belong within the protection domain of the utility model.
Claims (4)
1. a Hu Chang river foundation structure is characterized in that, the layer of concrete that is equipped with sand cushion, HPDE antiseepage film, sand topping on river bed and slope, river from the bottom to top successively, is spliced by concrete precast block.
2. a kind of Hu Chang according to claim 1 river foundation structure; It is characterized in that; The thickness of said sand cushion is 100～300mm; The thickness of said HPDE antiseepage film is 0.25～3mm, and the thickness of said sand topping is 100～300mm, and said concrete precast block is of a size of (200～500) * (300～1000) * (50～200) mm.
3. a kind of Hu Chang according to claim 1 river foundation structure; It is characterized in that; The thickness of said sand cushion is 200mm, and the thickness of said HPDE antiseepage film is 0.5mm, and the thickness of said sand topping is 100mm; Concrete precast block is of a size of 250 * 500 * 80mm on the said river bed, and concrete precast block is of a size of 300 * 500 * 80mm on the slope, said river.
4. a kind of Hu Chang according to claim 1 river foundation structure is characterized in that said HPDE antiseepage film is provided with the drainage exhaust hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120217128U CN202139571U (en) | 2011-06-24 | 2011-06-24 | Plant protective river foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120217128U CN202139571U (en) | 2011-06-24 | 2011-06-24 | Plant protective river foundation structure |
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| Publication Number | Publication Date |
|---|---|
| CN202139571U true CN202139571U (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120217128U Expired - Fee Related CN202139571U (en) | 2011-06-24 | 2011-06-24 | Plant protective river foundation structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644224A (en) * | 2012-04-19 | 2012-08-22 | 中铁十局集团有限公司 | Novel roadbed side slope building protecting method and precast concrete blocks therefor |
| CN107142858A (en) * | 2017-06-01 | 2017-09-08 | 中国路桥工程有限责任公司 | Single slope drainage system inside a kind of seasonal immersion roadbed |
| CN109667272A (en) * | 2017-10-17 | 2019-04-23 | 中国二十冶集团有限公司 | Foundation pit, foundation trench antiseepage waterproof method |
| CN110552320A (en) * | 2018-06-01 | 2019-12-10 | 中冶天工集团有限公司 | method for preventing composite impermeable membrane from floating and damaging |
| CN111926909A (en) * | 2020-07-03 | 2020-11-13 | 中建新疆建工集团第五建筑工程有限公司 | Construction method of sludge storage tank for dredging |
-
2011
- 2011-06-24 CN CN201120217128U patent/CN202139571U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644224A (en) * | 2012-04-19 | 2012-08-22 | 中铁十局集团有限公司 | Novel roadbed side slope building protecting method and precast concrete blocks therefor |
| CN107142858A (en) * | 2017-06-01 | 2017-09-08 | 中国路桥工程有限责任公司 | Single slope drainage system inside a kind of seasonal immersion roadbed |
| CN109667272A (en) * | 2017-10-17 | 2019-04-23 | 中国二十冶集团有限公司 | Foundation pit, foundation trench antiseepage waterproof method |
| CN110552320A (en) * | 2018-06-01 | 2019-12-10 | 中冶天工集团有限公司 | method for preventing composite impermeable membrane from floating and damaging |
| CN111926909A (en) * | 2020-07-03 | 2020-11-13 | 中建新疆建工集团第五建筑工程有限公司 | Construction method of sludge storage tank for dredging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20130624 |