CN105350550B - A kind of stiffening device and method of the pavement structure stability of soil and rock construction - Google Patents

A kind of stiffening device and method of the pavement structure stability of soil and rock construction Download PDF

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Publication number
CN105350550B
CN105350550B CN201510704989.9A CN201510704989A CN105350550B CN 105350550 B CN105350550 B CN 105350550B CN 201510704989 A CN201510704989 A CN 201510704989A CN 105350550 B CN105350550 B CN 105350550B
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CN
China
Prior art keywords
cofferdam
weir
soil
construction
anchor head
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Expired - Fee Related
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CN201510704989.9A
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Chinese (zh)
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CN105350550A (en
Inventor
胡志根
阮兴元
何文钦
黄天润
冀培民
杨鑫平
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Wuhan University WHU
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Wuhan University WHU
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Publication of CN105350550A publication Critical patent/CN105350550A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/02Restraining of open water
    • E02D19/04Restraining of open water by coffer-dams, e.g. made of sheet piles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor

Abstract

The invention discloses the stiffening device and method of a kind of pavement structure stability of soil and rock construction, device is made up of pervious bed, collection branch pipe, main drainpipe, anchor head and discharge outlet;Some collection branch pipes are provided with regard to equidistant vertical at a certain distance on main drainpipe, radial anchor head is constituted, the outside one end of collection branch pipe is sealed by the pervious bed;The sealing of main drainpipe one end, the other end are provided with the discharge outlet.Infiltration after the present invention can make seepage prevention of cofferdam curtain is discharged by drainage pipeline, reduces cofferdam panel seepage water pressure;Anchor head in batardeau concrete panel junction pours anchoring together with panel, reinforces cofferdam mask;Device has anchored native stone weir body and panel in earth rock cofferdam filling body simultaneously, constitutes space web frame, enhances cofferdam globality.The present invention can greatly strengthen the pavement structure stability of soil and rock construction.

Description

A kind of stiffening device and method of the pavement structure stability of soil and rock construction
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering technical field, more particularly to a kind of pavement structure of soil and rock construction is stably The stiffening device and method of property, is applied to the design and construction of soil and rock construction.
Background technology
Hydraulic and Hydro-Power Engineering soil and rock construction construction condition has:Dry season is unstable with flood period;One dry season encloses Weir cannot be built and complete;Foundation ditch desilting is drawn water and is easier to, and water can be crossed when dam body is relatively low in construction, it is impossible to can be reached when crossing water again Estimated dash elevation.Overflow cofferdam is not less relatively for soil and rock construction weir body volume, but mask is subject to current in the period of passing the flood period Wash away, stability needs to meet water requirement.Weir body filling material stability, curtain anti-seepage effect, downstream drainage effect of easing stress And panel anchoring effect etc. all affect soil and rock construction mask it is stable.
To keep mask stable in existing soil and rock construction design and construction, seepage proof curtain is often taken, and in downstream weir body Laying the larger rockfill of volume and boulder drainage blanket passage is used for draining.Meanwhile, pour thicker concrete slab and protect Face.These processing mode effects are not obvious, and cofferdam construction is higher to material requirements, fill transport and get the raw materials ready and fill out with subregion The complex process such as build, engineering cost is higher.
The soil and rock construction weir body amount of filling is larger, builds area place and mostly is native stone mixing material.Based on construction site material Material characteristic, by building effective draining anchor structure, strengthens weir body and mask stability, met water requirement, can be greatly Reduce engineering construction complexity and construction cost.
Before this method design is completed, do not find steady using related drain anchor structure reinforcement soil and rock construction mask Qualitatively study and cofferdam construction project example.
The content of the invention
In order to solve above-mentioned technical problem, the present invention proposes one kind and is based on construction site soil stone mixing material characteristic, leads to The pavement structure for cross and build effective draining anchor structure, strengthening the stable soil and rock construction of soil and rock construction mask is stable Property stiffening device and method.
The technical scheme that adopted of device of the present invention is:A kind of reinforcement of the pavement structure stability of soil and rock construction Device, it is characterised in that:Described device is made up of pervious bed, collection branch pipe, main drainpipe, anchor head and discharge outlet;The main row Some collection branch pipes are provided with regard to equidistant vertical at a certain distance on water pipe, radial anchor head is constituted, collection branch pipe to Sealed by the pervious bed outer one end;Main drainpipe one end sealing, the other end are provided with the discharge outlet.
Preferably, the pervious bed is made up of non-woven fabrics.
Preferably, the main body tubing of described device can be made up of PE tubing or steel tubing.
The technical scheme adopted by the method for the present invention is:A kind of reinforcement of the pavement structure stability of soil and rock construction Method, it is characterised in that comprise the following steps:
Step 1:Size and material behavior of the soil and rock construction according to cofferdam, determine the arrangement form and model of described device Enclose;
Step 2:When earth rock cofferdam is filled, placement in layers from bottom to up simultaneously buries described device, and native stone filling material is built Weir body;The discharge outlet arranges outside, it is ensured that pouring for concrete slab do not affect draining;By the anchor head same concrete slab Structure is fixed together, and forms overall skeleton;
Step 3:Described device builds and finishes, and completes cofferdam and fills and mask pouring construction, and weir body is with mask by described Device forms space web frame, enhanced stability.
Preferably, placement in layers from bottom to up embedded described device, institute when the earth rock cofferdam described in step 2 is filled State device to arrange in plum blossom-shaped in the body of weir, described device 1.0 ~ 1.5m of arrangement pitch between in level, vertically the cloth between Put 1.0 ~ 1.5m of spacing.
Preferably, during mask pouring construction described in step 3, the outermost one of described device constitutes radial anchor head Pour together with concrete slab.
The main advantage of the present invention is:
1st, when in method, soil and rock construction downstream is filled, the reinforcement anchoring effect of draining anchor structure enhances native stone The structural stability of weir body;
2nd, in method, native stone filling body infiltration can be discharged by discharge structure, reduced downstream penetration hydraulic pressure by force, strengthened shield Face stability;
3rd, in method, draining anchor structure anchor head is anchored at the stability for strengthening discharge structure together with panel, while right Panel reinforcement is anchored.Weir body and panel are also combined together by the anchoring process, are formed space web frame, are enhanced weir body Stability in the large;
4th, the mask stability of the soil and rock construction of the invention strengthens method, enhances the drainage effect behind cofferdam and weir Body structural strength, reduces the requirement to weir body filling material, without arranging the complicated discharge structure such as excessive heap stone-laying body, will Cofferdam weir body filling construction simplifies, and saves material investment and operating expenses.
Description of the drawings
Fig. 1:It is the apparatus structure sketch of the embodiment of the present invention;
Fig. 2:It is drainage principle figure of the device of the embodiment of the present invention in the body of soil and rock construction downstream weir;
Fig. 3:It is the device application schematic diagram of the embodiment of the present invention;
Fig. 4:It is the device space arrangement form schematic diagram of the embodiment of the present invention.
Specific embodiment
Understand for the ease of those of ordinary skill in the art and implement the present invention, below in conjunction with the accompanying drawings and embodiment is to this It is bright to be described in further detail, it will be appreciated that enforcement example described herein is merely to illustrate and explains the present invention, not For limiting the present invention.
Ask for an interview Fig. 1, a kind of stiffening device of the pavement structure stability of soil and rock construction that the present invention is provided, device 7 It is made up of pervious bed 1, collection branch pipe 2, main drainpipe 3, anchor head 4 and discharge outlet 5;On main drainpipe 3 at a certain distance just etc. Away from some collection branch pipes 2 are vertically installed with, radial anchor head 4 is constituted;Pervious bed 1 is made up of non-woven fabrics, and collection branch pipe 2 is outside Sealed by pervious bed 1 one end;The sealing of 3 one end of main drainpipe, the other end are provided with discharge outlet 5.
Ask for an interview Fig. 2, Fig. 3 and Fig. 4, a kind of reinforcement side of the pavement structure stability of soil and rock construction that the present invention is provided Method, comprises the following steps:
Step 1:Size and material behavior of the soil and rock construction according to cofferdam, the arrangement form and scope of determining device 7;
As shown in figure 3, the soil and rock construction downstream weir body gradient is divided into two sections, first paragraph is highly H1, on toeH1 Arrangement apparatus 7 in the weir body of height;Second segment is highly H from Riverbed 9 to cofferdam by-level section2, then in its slope section MiddleH2Arrangement apparatus 7 in the body of weir.
Device 7 in the body of weir in plum blossom-shaped arrange, as shown in Figure 4.Level to 1.0 ~ 1.5m of arrangement pitch between device 7, Vertically to 1.0 ~ 1.5m of arrangement pitch between device 7.
Step 2:When earth rock cofferdam is filled, placement in layers from bottom to up embedded device 7 roll native stone filling material 8 close Real weir body;Discharge outlet 5 is outwards arranged, it is ensured that pouring for concrete slab 6 do not affect draining;Will be anchor head 4 hardened with concrete surface Structure is fixed together, and forms overall skeleton.
Step 3:Device 7 builds and finishes, and completes cofferdam and fills and mask pouring construction(One composition spoke of outermost of device 7 Penetrate shape anchor head 4 to pour together with concrete slab 6), with mask by the formation space web frame of device 7, enhancing is steady for weir body It is qualitative.
How the device of the present embodiment is arranged according to cofferdam design and construction conditional decision.Apparatus main body tubing can be managed by PE Material or steel tubing etc. are constituted.The quantity of radial anchor head 4 is with spacing by the cofferdam size and filling material after seepage prevention of cofferdam curtain Characteristic is determined;Device horizontal interval is determined by cofferdam height and material character etc. to the laying number of plies with vertical;Collection branch pipe structure Size is determined using material, filling construction requirement etc. with pile tube by cofferdam size;With panel be cast in anchor head size together by Concrete surface plate thickness etc. is determined.
Although this specification more used mixed territory panel 6, device 7, native stone filling material 8, Riverbed 9, The terms such as pervious bed 1, collection branch pipe 2, main drainpipe 3, anchor head 4 and discharge outlet 5, but it is not precluded from the possibility using other terms Property.Using these terms just for the sake of more easily describing the essence of the present invention, it is construed as what any one was added Restriction is all contrary with spirit of the invention.
It should be appreciated that the part that this specification is not elaborated belongs to prior art.
It should be appreciated that the above-mentioned description for preferred embodiment is more detailed, therefore can not be considered to this The restriction of invention patent protection scope, one of ordinary skill in the art are being weighed without departing from the present invention under the enlightenment of the present invention Under the protected ambit of profit requirement, replacement can also be made or deformed, be each fallen within protection scope of the present invention, this It is bright scope is claimed to be defined by claims.

Claims (5)

1. a kind of reinforcement method of the pavement structure stability of soil and rock construction, is the pavement structure using soil and rock construction The stiffening device of stability is strengthened;Described device(7)By pervious bed(1), collection branch pipe(2), main drainpipe(3), anchor head (4)And discharge outlet(5)Composition;The main drainpipe(3)On some described catchment is provided with regard to equidistant vertical at a certain distance Arm(2), constitute radial anchor head(4), collection branch pipe(2)Outside one end is by the pervious bed(1)Sealing;The main draining Pipe(3)One end sealing, the other end are provided with the discharge outlet(5);
Characterized in that, the method comprising the steps of:
Step 1:Soil and rock construction determines described device according to the size and material behavior in cofferdam(7)Arrangement form and model Enclose;
Step 2:When earth rock cofferdam is filled, placement in layers from bottom to up simultaneously buries described device(7), native stone filling material(8)Repair Build weir body;The discharge outlet(5)Arrange outside, it is ensured that concrete slab(6)Pour;By the anchor head(4) It is fixed together with concrete slab structure, forms overall skeleton;
Described device(7)In the weir of the two-stage up and down slope in cofferdam, installation position is different, described device on the slope of higher level weir(7)It is laid in In 1/2 region of Yan Po bottoms, described device on the slope of subordinate weir(7)It is laid in the middle of the slope of weir in 1/2 region;
Step 3:Described device(7)Structure is finished, and is completed cofferdam and is filled and mask pouring construction, and weir body passes through the dress with mask Put(7)Form space web frame, enhanced stability.
2. method according to claim 1, it is characterised in that:The pervious bed(1)It is made up of non-woven fabrics.
3. method according to claim 1, it is characterised in that:Described device(7)Main body tubing can be by PE tubing or steel Tubing is constituted.
4. method according to claim 1, it is characterised in that:When earth rock cofferdam described in step 2 is filled from bottom to up Placement in layers embedded described device(7), device(7)Arrange in plum blossom-shaped in the body of weir, described device(7)In level between 1.0 ~ 1.5m of arrangement pitch, vertically 1.0 ~ 1.5m of arrangement pitch between.
5. method according to claim 1, it is characterised in that:During mask pouring construction described in step 3, described device (7)One radial anchor head of outermost(4)Same concrete slab(6)Pour together.
CN201510704989.9A 2015-10-27 2015-10-27 A kind of stiffening device and method of the pavement structure stability of soil and rock construction Expired - Fee Related CN105350550B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510704989.9A CN105350550B (en) 2015-10-27 2015-10-27 A kind of stiffening device and method of the pavement structure stability of soil and rock construction

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Application Number Priority Date Filing Date Title
CN201510704989.9A CN105350550B (en) 2015-10-27 2015-10-27 A kind of stiffening device and method of the pavement structure stability of soil and rock construction

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CN105350550B true CN105350550B (en) 2017-03-29

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CN111733841A (en) * 2020-06-16 2020-10-02 中建三局基础设施建设投资有限公司 Lake bottom karst treatment method for deep-buried shield tunnel

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CN201554028U (en) * 2009-10-19 2010-08-18 毛泽立 Root-type deep-hole drainage pile
CN202745066U (en) * 2012-08-27 2013-02-20 中国建筑第六工程局有限公司 Drainage structure for reducing underground water level and water content of slope soil
CN103669399B (en) * 2013-12-30 2016-03-23 青岛旭域土工材料股份有限公司 Concrete slab reinforced soil retaining wall and construction method thereof
JP3196277U (en) * 2014-12-18 2015-02-26 村橋 義雄 Drainage device for earth and sand

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