CN105839650A - Revetment retaining structure - Google Patents

Revetment retaining structure Download PDF

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Publication number
CN105839650A
CN105839650A CN201610288325.3A CN201610288325A CN105839650A CN 105839650 A CN105839650 A CN 105839650A CN 201610288325 A CN201610288325 A CN 201610288325A CN 105839650 A CN105839650 A CN 105839650A
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CN
China
Prior art keywords
soil
bank protection
breast boards
strut
plate
Prior art date
Application number
CN201610288325.3A
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Chinese (zh)
Other versions
CN105839650B (en
Inventor
朱奎
Original Assignee
叶长青
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Publication date
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Priority to CN201610288325.3A priority Critical patent/CN105839650B/en
Publication of CN105839650A publication Critical patent/CN105839650A/en
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Publication of CN105839650B publication Critical patent/CN105839650B/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines

Abstract

The invention discloses a revetment retaining structure. The revetment retaining structure is characterized in that soil is unloaded in the position 1/3 of the height of a revetment, a right revetment soil body is pushed through prestressing force to make the right revetment soil body be in an equilibrium state, a soil retaining structure is integrally formed by latticed members, and revetment columns in the latticed members effectively transfer active soil pressure to a deep soil body; and a fold line form is adopted by a revetment plate with the lower part facing the soil body part, the soil body in the area forms a soil arch in the load-bearing moving process, and a lower soil body pushes soil anchor plates through brace rods to make the soil body keep stable. The revetment retaining structure is good in safety performance and low in project cost.

Description

Bank protection retaining structure

Technical field

The present invention relates to a kind of retaining structure, particularly to a kind of bank protection retaining structure.

Background technology

Bank protection retaining structure is to prevent soil body landslide or a kind of structure of deformation instability, is that Geotechnical Engineering is important One of research topic.Gravity type retaining structure is the most ancient barrier wall structure, has and gathers materials on the spot, easy construction Etc. significant advantage, but it is increasing to be as construction scale of projects, and Gravity Retaining Wall does not the most adapt to engineering bar The part complex area needs to retaining structure, higher mainly due to Gravity Retaining Wall cost, and in construction During due to excavate more meeting cause foundation instability, how to save construction costs, ensure that engineering safety is engineering The problem that personnel face.

Summary of the invention

The present invention is to provide a kind of bank protection retaining structure, solves that bank protection retaining structure is dangerous and high the asking of cost Topic.

The present invention carries out unloading soil at 1/3 bank protection height, makes right side protect by the bank protection soil body on the right side of prestressing force pushing tow The slope soil body is in poised state, uses latticed members that soil-baffling structure is integrally formed, bank protection post in latticed members Active earth pressure is efficiently transferred to deep soil.Bottom uses fold-line-shaped towards the Slope protection plate at soil body position Formula, makes this region soil body form soil arch in load-bearing moving process, and the top soil body uses strut pushing tow soil anchor slab to make The soil body remains stable.

Bank protection post stretches into below substrate absolute altitude 2-2.5 rice, and bank protection post setting space is 4-6m, and bank protection column section is Square, square a length of 200-250mm, Slope protection plate is set outside bank protection post, Slope protection plate thickness is 60-80mm, Slope protection plate is flat board, arranges breast boards towards soil face, and breast boards is flap, and flap angle is 150-160 Degree, forms the triangle soil of different units, there will be certain change under triangle soil body thrust outside on the right side of flap Shape, forms the relieving arch of horizontal direction, and the horizontal thrust that in relieving arch, the soil body produces is born by broken line plate.Gear soil Plate stays and sets spilled water hole, and spilled water hole arrangement pitch is 1 every square, a diameter of 6-8mm of spilled water hole, breast boards And arranging girt strip between bank protection post, girt strip height is 150-250mm, most descend row's girt strip from substrate Altitude For 400-500mm, the vertical spacing of adjacent row girt strip is 600-800mm.Bank protection post, Slope protection plate, girt strip, Breast boards forms cancelled structure, and cancelled structure top arranges capping beam, and capping beam height is 400-600mm, The earthwork is hollowed out by total height position, bank protection top 1/3, and it is 0.6-0.8m that the earthwork hollows out width, right side soil excavation Sloping, slope and horizontal angle are 70-80 degree, and ramped surfaces lays geotextiles, sets above geotextiles Putting soil anchor slab, soil anchor slab is shaped as triangle line, and soil anchor slab is the armoured concrete slab of thickness 12-18mm, soil Anchor slab is with three dowels, a diameter of 14-16mm of dowel, and a length of 400-600mm of dowel, dowel stretches into The right side soil body.Strut right-hand member withstands soil anchor slab, is fixed on Slope protection plate by crab-bolt after strut left end Shi Hanzhang, Strut uses the reinforcing bar of a diameter of 28mm or 32mm, and adjacent struts distance is 0.7-0.9m.Earthwork cavern part Filler is filled in position, and filler uses sand rubble, and sand ballast grain sizes is not more than 80mm, and sand rubble passes through 0.07mm The grogs of sieve aperture should be less than 15%, although or more than 15% but be should be less than by the grogs of 0.015mm sieve aperture 10%.

Construction procedure includes:

(1) construction bank protection post, bank protection post inserts the soil body;

(2) steel plate inserts the soil body support as temporary construction, on the right side of steel plate, carry out support top, spoil with angle steel Side reserves work surface;

(3) breast boards, girt strip and Slope protection plate template are installed, breast boards, girt strip and Slope protection plate reinforced frame are put into In template, pour breast boards, girt strip and Slope protection plate concrete;Then installing capping beam template, will bear down on one joist steel Ledges puts into template, pours capping beam concrete, makes breast boards, girt strip and Slope protection plate and bank protection post be formed Overall;

(4) the 1/3 above soil body of bank protection height is carried out removal, lay geotextiles after unloading soil, then soil anchor is installed Plate;

(5) strut withstands soil anchor slab through the embedded hole of breast boards and Slope protection plate;

(6) removing steel plate temporary construction to support, between steel plate and breast boards, space uses sand filling;

(7) jack pair strut is used to carry out prestressing force pushing tow;Compressed value according to jack controls prestressing force Pushing tow pressure, if strut uses the reinforcing bar of 28mm, the compressed value of jack is defined as 5mm, if support Bar uses the reinforcing bar of 32mm, and the compressed value of jack is defined as 4mm, and strut can after carrying out prestressing force pushing tow To effectively cope with the active earth pressure of the right side soil body;

In order to avoid strut is corroded, one layer of anti-corrosion asphalt ointment of brush after strut prestressing force pushing tow, use after having brushed Industry gauze parcel, one layer of Colophonium ointment of brush again after parcel.

(8) filling filler between breast boards and the right side soil body, filler uses back-filling in layers compacting, every layer of laying Thickness 500mm, rakes after spreading out and putting on therewith.

Security performance of the present invention is good, and construction costs is low.

Accompanying drawing explanation

Fig. 1 is bank protection retaining structure elevational schematic view, and Fig. 2 is retaining structure floor map, and Fig. 3 is soil anchor Board plane schematic diagram, Fig. 4 is soil anchor slab elevational schematic view.

In each accompanying drawing: 1, bank protection post, 2, Slope protection plate, 3, girt strip, 4, breast boards, 5, strut, 6, anchor Bolt, 7, soil anchor slab, 8, geotextiles, 9, capping beam, 10, filler.

Detailed description of the invention

In embodiment, bank protection post 1 stretches into below substrate absolute altitude 2 meters, and bank protection post 1 setting space is 5m, bank protection Post 1 cross section is square, and square a length of 250mm arranges Slope protection plate 2, Slope protection plate outside bank protection post 1 2 thickness are 80mm, and Slope protection plate 2 is flat board, arrange breast boards 4 towards soil face, and breast boards 4 is flap, folding Plate angle is 160 degree.Breast boards 4 stays and sets spilled water hole, and spilled water hole arrangement pitch is 1 every square, spilled water hole A diameter of 7mm, arranges girt strip 3 between breast boards 4 and bank protection post 1, girt strip 3 height is 200mm, Lower row's girt strip 3 is 450mm from substrate Altitude, and the vertical spacing of adjacent row girt strip 3 is 700mm.Bank protection Post 1, Slope protection plate 2, girt strip 3, breast boards 4 form cancelled structure, and cancelled structure top is arranged bears down on one Beam 9, capping beam 9 height is 400mm, and the earthwork is hollowed out by total height position, bank protection top 1/3, and the earthwork hollows out Width is 0.7m, soil excavation sloping, right side, and slope and horizontal angle are 75 degree, and ramped surfaces spreads If geotextiles 8, geotextiles 8 is arranged above with soil anchor slab 7, and soil anchor slab 7 is shaped as triangle line, and soil anchor slab 7 is The armoured concrete slab of thickness 16mm, soil anchor slab 7 is with three dowels, a diameter of 14mm of dowel, dowel A length of 500mm, dowel stretches into the right side soil body.Strut 5 right-hand member withstands soil anchor slab 7, and strut 5 left end applies Being fixed on Slope protection plate 2 by crab-bolt 6 after prestressing force, strut 5 uses the reinforcing bar of a diameter of 28mm or 32mm, Adjacent struts 5 is apart from for 0.8m.The earthwork hollows out position and fills filler 10, and filler 10 uses sand rubble, and sand is broken Stone particle diameter is not more than 80mm, and sand rubble should be less than 15% by the grogs of 0.07mm sieve aperture.

Construction procedure includes:

(1) construction bank protection post 1, bank protection post 1 inserts the soil body;

(2) steel plate inserts the soil body support as temporary construction, on the right side of steel plate, carry out support top, spoil with angle steel Side reserves work surface;

(3) breast boards 4, girt strip 3 and Slope protection plate 2 template are installed, by breast boards 4, girt strip 3 and Slope protection plate 2 reinforced frames put into template, pour breast boards 4, girt strip 3 and Slope protection plate 2 concrete;Then install and bear down on one Beam 9 template, puts into template by capping beam 9 reinforced frame, pours capping beam 9 concrete, make breast boards 4, Girt strip 3 and Slope protection plate 2 and bank protection post 1 form entirety;

(4) the 1/3 above soil body of bank protection height is carried out removal, lay geotextiles 8 after unloading soil, then soil is installed Anchor slab 7;

(5) strut 5 withstands soil anchor slab 7 through the embedded hole of breast boards 4 and Slope protection plate 2;

(6) removing steel plate temporary construction to support, between steel plate and breast boards 4, space uses sand filling;

(7) jack pair strut 5 is used to carry out prestressing force pushing tow;Compressed value according to jack controls pre-answering Power pushing tow pressure, strut 5 uses the reinforcing bar of 28mm, and the compressed value of jack is defined as 5mm;

In order to avoid strut 5 is corroded, after strut 5 prestressing force pushing tow, one layer of anti-corrosion asphalt ointment of brush, has brushed Wrap up in industry bundle afterwards, one layer of Colophonium ointment of brush again after parcel.

(8) filling filler 10 between breast boards 4 and the right side soil body, filler 10 uses back-filling in layers to tamp, Every layer of laying depth 500mm, rakes after spreading out and putting on therewith.

Claims (6)

1. a bank protection retaining structure, is characterized in that carrying out unloading soil, by prestressing force top at 1/3 bank protection height Pushing away the right side bank protection soil body makes the right side bank protection soil body be in poised state, uses latticed members that gear soil knot is integrally formed Structure, in latticed members, active earth pressure is efficiently transferred to deep soil by bank protection post;Bottom is towards soil body position Slope protection plate use broken line form, make this region soil body is formed in load-bearing moving process soil arch, the top soil body employing Strut pushing tow soil anchor slab makes the soil body remain stable;
Bank protection post stretches into below substrate absolute altitude 2-2.5 rice, and bank protection post setting space is 4-6m, and bank protection column section is just Square, square a length of 200-250mm, Slope protection plate is set outside bank protection post, Slope protection plate thickness is 60-80mm, Slope protection plate is flat board, arranges breast boards towards soil face, and breast boards is flap, and flap angle is 150-160 degree;Gear soil Plate stays and sets spilled water hole, and spilled water hole arrangement pitch is 1 every square, a diameter of 6-8mm of spilled water hole, breast boards with protect Arranging girt strip between the post of slope, girt strip height is 150-250mm, descends most row's girt strip from substrate Altitude to be 400-500mm, the vertical spacing of adjacent row girt strip is 600-800mm;Bank protection post, Slope protection plate, girt strip, breast boards Forming cancelled structure, cancelled structure top arranges capping beam, and capping beam height is 400-600mm, on bank protection The earthwork is hollowed out by total height position, portion 1/3, and it is 0.6-0.8m that the earthwork hollows out width, soil excavation sloping, right side, Slope and horizontal angle are 70-80 degree, and ramped surfaces lays geotextiles, and geotextiles is arranged above with soil anchor slab, Soil anchor slab is shaped as triangle line, and soil anchor slab is the armoured concrete slab of thickness 12-18mm, and soil anchor slab is with three Dowel, a diameter of 14-16mm of dowel, a length of 400-600mm of dowel, dowel stretches into the right side soil body;Strut Right-hand member withstands soil anchor slab, is fixed on Slope protection plate by crab-bolt after strut left end Shi Hanzhang, and strut uses a diameter of The reinforcing bar of 28mm or 32mm, adjacent struts distance is 0.7-0.9m;The earthwork hollows out position and fills filler, filler Use sand rubble.
Bank protection retaining structure the most according to claim 1, is characterized in that construction procedure includes:
(1) construction bank protection post, bank protection post inserts the soil body;
(2) steel plate inserts the soil body support as temporary construction, on the right side of steel plate, carry out support top, earth excavation with angle steel Reserve work surface;
(3) breast boards, girt strip and Slope protection plate template are installed, breast boards, girt strip and Slope protection plate reinforced frame are put into mould In plate, pour breast boards, girt strip and Slope protection plate concrete;Then capping beam template is installed, by capping beam reinforced frame Put into template, pour capping beam concrete, make breast boards, girt strip and Slope protection plate and bank protection cylindricality integral;
(4) the 1/3 above soil body of bank protection height is carried out removal, lay geotextiles after unloading soil, then soil anchor slab is installed;
(5) strut withstands soil anchor slab through the embedded hole of breast boards and Slope protection plate;
(6) removing steel plate temporary construction to support, between steel plate and breast boards, space uses sand filling;
(7) jack pair strut is used to carry out prestressing force pushing tow;
(8) filling filler between breast boards and the right side soil body, filler uses back-filling in layers compacting, lays thickness for every layer Degree 500mm, rakes after spreading out and putting on therewith.
Bank protection retaining structure the most according to claim 1, is characterized in that longitudinal load prestressed girder uses single To stretch-draw, one end is used to fix at longitudinal direction stretching mode, tensioned at one end;If horizontal load prestressed girder Span is less than 15m, uses unidirectional stretch-draw, and stretching mode uses one end to fix, tensioned at one end;If laterally load The span of prestressed girder is more than or equal to 15m, and stretching mode uses two ends stretch-draw;Longitudinal load prestressed girder is with horizontal Following two times tensioning mode is used: of pretensioning longitudinal direction load prestressed girder is in advance for the first time to load prestressed girder Stress rib, then a presstressed reinforcing steel of stretch-draw horizontal load prestressed girder, make longitudinal load prestressed girder, laterally Load prestressed girder is after in first time, stretch-draw completes, and vertical and horizontal all have a prestressing force to reach design stress value; Another root presstressed reinforcing steel of second time stretch-draw longitudinal direction again load prestressed girder, then stretch-draw horizontal load prestressed girder Another root presstressed reinforcing steel.
Bank protection retaining structure the most according to claim 1, is characterized in that sand ballast grain sizes is not more than 80mm, Sand rubble should be less than 15% by the grogs of 0.07mm sieve aperture, although or more than 15% but pass through 0.015mm The grogs of sieve aperture should be less than 10%.
Bank protection retaining structure the most according to claim 2, is characterized in that the compressed value according to jack is controlled Prestressing force pushing tow pressure processed, if strut uses the reinforcing bar of 28mm, the compressed value of jack is defined as 5mm. If strut uses the reinforcing bar of 32mm, the compressed value of jack is defined as 4mm.
Bank protection retaining structure the most according to claim 2, is characterized in that brush one after strut prestressing force pushing tow Layer anti-corrosion asphalt ointment, wraps up in industrial bundle after having brushed, one layer of Colophonium ointment of brush again after parcel.
CN201610288325.3A 2016-04-12 2016-04-12 Bank protection retaining structure CN105839650B (en)

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CN201710536683.6A CN107130618B (en) 2016-04-12 2016-04-12 Bank protection retaining structure construction method
CN201610288325.3A CN105839650B (en) 2016-04-12 2016-04-12 Bank protection retaining structure

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0868054A (en) * 1994-08-30 1996-03-12 Kensetsu Kiso Eng Co Ltd Horizontal ground constructing method using expanded resin block
JP2001317054A (en) * 2000-05-09 2001-11-16 Santoppu Engineer Kk Horizontal member for preventing deformation of l- shaped cage for reinforcing embankment slope and reinforced embankment method using the same
CN201232188Y (en) * 2008-05-29 2009-05-06 安徽省建设工程勘察设计院 Buttress type soil nail wall
CN201671108U (en) * 2010-04-27 2010-12-15 中国科学院武汉岩土力学研究所 Riverside shoulder prestressing anchor cable sheet-pile wall
CN204456180U (en) * 2015-02-27 2015-07-08 重庆大学 Folded plate pile retaining wall
CN204919573U (en) * 2015-08-27 2015-12-30 山东科技大学 Combined type side slope supporting construction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102330431A (en) * 2011-06-16 2012-01-25 兰州理工大学 Flexible support structure of pre-stress anchor rod for lattice type frame and construction method of flexible support structure
KR101181619B1 (en) * 2011-10-06 2012-09-13 쌍용건설 주식회사 Building method of high wall block for large scale underground structure using earth anchor represtressing
CN103726495B (en) * 2014-01-10 2016-01-13 上海建工五建集团有限公司 Coastal waters deep foundation pit supporting structure and construction method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0868054A (en) * 1994-08-30 1996-03-12 Kensetsu Kiso Eng Co Ltd Horizontal ground constructing method using expanded resin block
JP2001317054A (en) * 2000-05-09 2001-11-16 Santoppu Engineer Kk Horizontal member for preventing deformation of l- shaped cage for reinforcing embankment slope and reinforced embankment method using the same
CN201232188Y (en) * 2008-05-29 2009-05-06 安徽省建设工程勘察设计院 Buttress type soil nail wall
CN201671108U (en) * 2010-04-27 2010-12-15 中国科学院武汉岩土力学研究所 Riverside shoulder prestressing anchor cable sheet-pile wall
CN204456180U (en) * 2015-02-27 2015-07-08 重庆大学 Folded plate pile retaining wall
CN204919573U (en) * 2015-08-27 2015-12-30 山东科技大学 Combined type side slope supporting construction

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CN105839650B (en) 2017-11-28
CN107130618B (en) 2018-11-09
CN107130618A (en) 2017-09-05

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