CN105908763A - Multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure and design and calculation method thereof - Google Patents
Multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure and design and calculation method thereof Download PDFInfo
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- CN105908763A CN105908763A CN201610451356.6A CN201610451356A CN105908763A CN 105908763 A CN105908763 A CN 105908763A CN 201610451356 A CN201610451356 A CN 201610451356A CN 105908763 A CN105908763 A CN 105908763A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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Abstract
The invention relates to a multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure and a design and calculation method thereof, and the multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure and the design and calculation method thereof are particularly suitable for the field of civil engineering construction of vast mountainous cities. The multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure provided by the invention comprises a bamboo reinforcement reinforced earth structure body, bamboo reinforcement and lime soil, and the bamboo reinforcement and the lime soil are arranged in the bamboo reinforcement reinforced earth structure body. The invention further provides the design and calculation method of the multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure. The method includes the following steps that a, the number of steps, the platform width, the slope gradient, the height of each step and the linetype of the slope surface are determined; b, proportions of the lime soil are calculated and bamboo reinforcement reinforced belts are manufactured; c, the fracture surface of a bamboo reinforcement reinforced body is determined; d, the soil pressure and cohesion of bamboo reinforcement earth are calculated; and e, design and layout of the bamboo reinforcement reinforced belts are carried out. The multistep high-slope and wide-platform type bamboo reinforcement reinforced earth structure and the design and calculation method thereof have the advantages that local materials can be utilized, safety, reliability, economical efficiency and practicability are achieved, construction is convenient, the environment-friendly and ecological performance is achieved, and the economic benefit and social benefit are quite superior.
Description
Technical field
The present invention relates to a kind of multistage high slope, Wide Worktable formula bamboo reinforcement earth structure and design and calculation method, this novel bamboo reinforcement
Earth structure and design and calculation method are different from the common earth structure of existing specification regulation, its design and calculation method the most not phase
With.This novel bamboo reinforcement earth structure is particularly suitable in the vast Mountainous City of China, rural industry, transport development
Need heavy excavation, big embankment area are carried out multistage high slope and prop up the field of civil engineering of gear.
Background technology
Mountain highway and railway shoulder both sides or backfilled slope soil-baffling structure, usually use reinforced earth soil-baffling structure, prior art
In earth structure domatic be usually the most vertical, domatic armored concrete panel is made, and reinforced bands is steel plastic compount reinforced bands,
The filling body of reinforcing body is that water stability is good, the sandy soil of easy compacting, as shown in Figure 1.Owing to existing earth structure needs pre-manufactured steel
Lift panel again when reinforced concrete panel, construction, and reinforced bands is reliably connected with panel, owing to panel is vertical, construction
Inconvenience, requires higher to soil property of banketing simultaneously, it is often necessary to water stability is good, the sandy soil of easy compacting to dig fortune outside construction site,
If the soil in place is undesirable, outward transport is outwelled, so causing common reinforced earth soil-baffling structure construction costs higher again.
It addition, specify according to existing " highway Reinforced Material with Clay Engineering design specification " JTJ015-91: potential the rupturing of earth structure of single-stage
Face can simplify becomes upper parallel in metope, and bottom (is 45 with horizontal plane angle by corner0+ Φ/2) two sections of lines composition,
Seeing Fig. 3, the basis this simplification plane of fracture such as corresponding soil pressure, reinforced bands is designed calculating.
This design and calculation method is domatic for gentle slope rate, the most non-perpendicular panel for reinforced earth, and is multistage, the multistage height of faulting of slab ends
The situation of side slope bamboo reinforcement earth structure is the most inapplicable, and current specifications specifies: the wall height earth structure more than 20 meters need to enter
Row particular design, this multistage high slope bamboo reinforcement earth structure being much larger than 20 meters for slope height is unaccommodated.
Summary of the invention
The technical problem to be solved is to provide one and can gather materials on the spot, economical and practical, safe and reliable, easy construction,
The multistage high slope of ecological, environmental protective, Wide Worktable formula bamboo reinforcement earth structure.
For solving above-mentioned technical problem, the multistage high slope of present invention employing, Wide Worktable formula bamboo reinforcement earth structure, including bamboo reinforcement
Reinforcing body structure, described bamboo reinforcement reinforcing body structure is made up of bamboo reinforcement the reinforcing body more than two-stage being sequentially connected from top to bottom, described
Reinforcing body rib tape in bamboo reinforcement reinforcing body is bamboo reinforcement band, and every grade of bamboo reinforcement reinforcing body is made up of side slope and platform, the ratio of slope of described side slope
Scope is 1:1 to 1:0.5, and the width of every one-level bamboo reinforcement reinforcing body platform is more than 0.3 times of this grade of bamboo reinforcement reinforcing body height.
Further, bamboo reinforcement reinforcing body body structure surface is provided with bamboo reinforcement dirt panel.
Further, the banketing as commonly banketing or miscellaneous fill of reinforced bands of described bamboo reinforcement dirt back side of panel.
Present invention also offers multistage high slope, the design and calculation method of Wide Worktable formula bamboo reinforcement earth structure, it is characterised in that
Including following step:
A, determine the reinforcing body progression of multistage bamboo reinforcement earth structure according to landform geological conditions, put the berm width of platform, every grade of bamboo
The slope gradient of muscle reinforcing body, slope height and side slope line style；B, utilize bamboo wood to make bamboo reinforcement reinforced bands anticorrosion, utilize simultaneously
Clay, Calx, calculate dirt and coordinate when optimum moisture content；C, determine the plane of fracture of every one-level bamboo reinforcement reinforcing body, be specially really
The plane of fracture 4 of fixed every one-level slope body；The method wherein determining every one-level slope body plane of fracture 4 is: take on this grade of slope body platform with
The distance of this grade of platform edges be high 0.3 times, body slope, this grade of slope o'clock as 1: 6, cross 1: 6 and do and this grade of slope body
Straight line that side slope surface is parallel also intersects at second point 7 with the horizontal line being positioned at this grade of slope body one half height, takes this grade of Slope
Point at angle is thirdly 8, is sequentially connected with 1: 6, second point 7 and thirdly 8 form the plane of fracture 4；D, basis are the most true
The fixed plane of fracture, the cohesive strength carrying out soil pressure distribution and bamboo reinforcement reinforced bands calculates；E, come according to the result of calculation of b, Step d
Carry out the design arrangement of bamboo reinforcement reinforced bands.
The invention has the beneficial effects as follows: use the multistage high slope of technical scheme design, Wide Worktable earth structure, warp
Crossing experiment and the observation of 15 years, the deformation of its muscle soil structure and displacement are the most minimum, and structural safety is reliable, and cost is only existing reinforced earth
The 1/3 of structure, easy construction, gathers materials on the spot, Appropriate application slope vegetation protection, green ecological, economic benefit and social benefit ten
Divide superior.
Accompanying drawing explanation
Fig. 1 is the earth structure schematic diagram of prior art；
Fig. 2 is the earth structure schematic diagram of the present invention；
Fig. 3 is the earth structure plane of fracture model of prior art；
Fig. 4 is the determination multistage bamboo reinforcement earth structure plane of fracture model and geostatic shield figure that the present invention proposes.
Parts, position and numbering in figure: the one-level soil body 2, three grades of soil bodys 3 of 1, two grades of soil bodys, the plane of fracture 4, bamboo reinforcement 5,
1: 6, second point 7, thirdly 8.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 2, Figure 4 shows, for solving above-mentioned technical problem, the multistage high slope of present invention employing, Wide Worktable formula reinforced earth
Structure and design, computational methods include: a, determine according to landform geological conditions multistage bamboo reinforcement earth structure reinforcing body progression,
Berm width, the slope gradient of every grade of bamboo reinforcement reinforcing body, slope height and the side slope line style of anti-；B, bamboo wood is utilized to make bamboo reinforcement
Reinforced bands anticorrosion, utilize local clay, Calx simultaneously, calculates dirt and coordinates when optimum moisture content；C, according to the present invention's
Method determines the plane of fracture of every one-level bamboo reinforcement reinforcing body, and thus determines stability of slope district and unstable region；D, basis are the most true
The fixed plane of fracture, the cohesive strength carrying out soil pressure distribution and bamboo reinforcement reinforced bands calculates；E, come according to the result of calculation of b, Step d
Carry out the design arrangement of bamboo reinforcement reinforced bands.Bamboo reinforcement reinforcing body structure is by the above soil body of the two-stage being sequentially connected from top to bottom (reinforcing body)
Composition, such as: 1, two grades of soil bodys 2 of the one-level soil body and three grades of soil bodys 3 form, and every grade of soil structures is made up of side slope and platform,
The ratio of slope scope of side slope is generally between 1:1 to 1:0.5, its multistage Wide Worktable formula faulting of slab ends used, and every one-level soil body 1 is wrong
The width of platform (platform) is more than 0.3 times of this grade of soil structures height.The multistage high slope of the application, Wide Worktable formula bamboo reinforcement add
Muscle soil structure have employed the multistage version putting platform (faulting of slab ends), and every highly usual between 6-20 rice, and side slope total height can
Accomplish more than 50 meters, be particularly suitable for high mountain zanjon high slope and fill.Use after aforementioned structure with the earth structure of prior art such as
Structure compared security reliability shown in Fig. 1 is higher, both gathers materials on the spot, again easy construction, and construction costs is lower, goes back green ecological.
The application uses bamboo reinforcement 5 as bamboo reinforcement reinforced bands, and the filler of the soil body 3 is commonly banketing of taking on the spot, and the panel soil body needs and stone
Ash adaptive than, its bamboo reinforcement, banket, lime material can be gathered materials on the spot at engineering construction, is greatly saved engineering cost.
Dirt retaining panel it is provided with in described side slope.For improving safety of structure, bamboo reinforcement dirt gear soil face need to be set in side slope
Plate.
Described bamboo reinforcement dirt retaining panel is bamboo reinforcement packaging type dirt panel.Bamboo reinforcement packaging type dirt panel is used to increase structure peace
Vegetation can be utilized while total stability in domatic growth, both can play the effect of bank protection, can improve the ecological environment again.
The application uses multistage high slope, Wide Worktable formula earth structure and design, computational methods, and wherein seminar is by experiment
Room model test and model failure analysis, the multistage bamboo reinforcement earth structure of proposition and design, the mainly comprising the following steps of computational methods:
A, determine the reinforcing body progression of multistage bamboo reinforcement earth structure according to landform geological conditions, put the berm width of platform, every grade of bamboo
The slope gradient of muscle reinforcing body, slope height and side slope line style；B, utilize bamboo wood to make bamboo reinforcement reinforced bands anticorrosion, utilize simultaneously
Clay, Calx, calculate dirt and coordinate when optimum moisture content；C, the method according to the invention determine every one-level bamboo reinforcement reinforcing body
The plane of fracture, and thus determine stability of slope district and unstable region, specially determine the plane of fracture 4 of every one-level soil body；Wherein
The method determining every one-level soil body plane of fracture 4 is: taking the distance with this grade of platform edges on this grade of soil body platform is this grade of soil body
High 0.3 times, slope o'clock as 1: 6, cross 1: 6 do with this grade of domatic parallel straight line of upper side slope and be positioned at this
The horizontal line of the level soil body one half height intersects at second point 7, takes point at this grade of side slope slope angle for thirdly 8, is sequentially connected with the
1: 6, second point 7 and the thirdly 8 formation plane of fracture 4；D, calculating soil pressure and bamboo reinforcement soil cohesion.According to aforementioned a
Step fixed 4 is the plane of fracture, and soil pressure distribution can divide three according to " highway reinforced earth according to plane of fracture model in Fig. 2
Engineering design code " JTJ015-91 regulation, calculate soil pressure respectively, and the cohesive strength carrying out bamboo reinforcement reinforced bands calculates；E, root
The design arrangement of bamboo reinforcement reinforced bands is carried out according to the result of calculation of b, Step d.
As in figure 2 it is shown, below the plane of fracture model elaborates side that seminar is proposed by model test is described as a example by three grades of soil bodys
Method, determines that the method for the every one-level soil body 1 demarcation line 4 is: find out 1: 6 be positioned on this grade of soil structures platform, crosses the
1: 6 do the straight line parallel with this grade of soil structures side slope surface and with the horizontal line phase being positioned at this grade of soil structures one half height
Meet at second point 7, take point at this grade of side slope slope angle for thirdly 8, be sequentially connected with 1: 6, second point 7 and thirdly 8
Forming demarcation line 4, wherein the 1: 6 of the one-level soil body 1 is away from this grade of platform edges 2.7m position on the one-level soil body 1 platform
Point, the 1: 6 of two grades of soil bodys 2 is the point on the two grades of soil body 2 platforms away from this grade of platform edges 3.6m position, three grades of soil
The 1: 6 of body 3 is the point on the three grades of soil body 3 platforms away from this grade of platform edges 3.6m position；
Through engineering actual verification, the multistage high slope built according to the design and calculation method of the application, Wide Worktable formula bamboo reinforcement reinforcement
Soil arch dam soil-baffling structure successfully solves the former times lattice of water stability difference incomparably more than 80 and reaches native backfill problem, and has increased newly more than 60
The construction land of mu, through experiment on the spot and observation, this bamboo reinforcement reinforced earth arch dam soil-baffling structure lasts 15 years and uses and Flos Bombacis Malabarici
" 8.30 " earthquake is checked, and so far without substantially deformation, sedimentation and displacement, structural safety is reliable, and its cost is only existing and commonly adds
The 1/3 of muscle soil structure, and easy construction, gather materials on the spot, green ecological, economic and social benefit is the most superior.
Claims (4)
- The most multistage high slope, Wide Worktable formula bamboo reinforcement earth structure, including bamboo reinforcement reinforcing body structure, it is characterised in that: described bamboo Muscle reinforcing body structure is made up of bamboo reinforcement the reinforcing body more than two-stage being sequentially connected from top to bottom, the reinforcing body in described bamboo reinforcement reinforcing body Rib tape is bamboo reinforcement band, and every grade of bamboo reinforcement reinforcing body is made up of side slope and platform, and the ratio of slope scope of described side slope is 1:1 to 1:0.5, often The width of one-level bamboo reinforcement reinforcing body platform is more than 0.3 times of this grade of bamboo reinforcement reinforcing body height.
- Multistage high slope the most as claimed in claim 1, Wide Worktable formula bamboo reinforcement earth structure, it is characterised in that: add at bamboo reinforcement Muscle body body structure surface is provided with bamboo reinforcement dirt panel.
- Multistage high slope the most as claimed in claim 2, Wide Worktable formula bamboo reinforcement earth structure, it is characterised in that: in described bamboo Banketing as commonly banketing or miscellaneous fill of the reinforced bands of muscle dirt back side of panel.
- 4. right profit require any one of 1 to 3 profit require described in multistage high slope, the setting of Wide Worktable formula bamboo reinforcement earth structure Meter computational methods, it is characterised in that include following step:A, determine the reinforcing body progression of multistage bamboo reinforcement earth structure according to landform geological conditions, put the berm width of platform, every grade of bamboo The slope gradient of muscle reinforcing body, slope height and side slope line style；B, utilize bamboo wood to make bamboo reinforcement reinforced bands anticorrosion, utilize simultaneously Clay, Calx, calculate dirt and coordinate when optimum moisture content；C, determine the plane of fracture of every one-level bamboo reinforcement reinforcing body, be specially really The plane of fracture 4 of fixed every one-level slope body；The method wherein determining every one-level slope body plane of fracture 4 is: take on this grade of slope body platform with should The distance of level platform edges be high 0.3 times, body slope, this grade of slope o'clock as 1: 6, cross 1: 6 and do and this grade of slope body side slope Domatic parallel straight line also intersects at second point 7 with the horizontal line being positioned at this grade of slope body one half height, takes at this grade of side slope slope angle Point is thirdly 8, is sequentially connected with 1: 6, second point 7 and thirdly 8 form the plane of fracture 4；D, rupture according to fixed Face, the cohesive strength carrying out soil pressure distribution and bamboo reinforcement reinforced bands calculates；E, result of calculation according to b, Step d carry out bamboo reinforcement and add The design arrangement of rib tape.
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| CN201610451356.6A CN105908763B (en) | 2016-06-21 | 2016-06-21 | The design and calculation method of multistage high slope, Wide Worktable formula bamboo reinforcement earth structure |
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| CN201610451356.6A CN105908763B (en) | 2016-06-21 | 2016-06-21 | The design and calculation method of multistage high slope, Wide Worktable formula bamboo reinforcement earth structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987335A (en) * | 2019-12-20 | 2020-04-10 | 防灾科技学院 | Method and device for determining position of potential fracture surface of two-stage reinforced soil structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203129156U (en) * | 2012-12-27 | 2013-08-14 | 中交第二航务工程勘察设计院有限公司 | High steep reinforcement side slope structure |
| JP2016108936A (en) * | 2014-11-26 | 2016-06-20 | 耕治 山内 | Bamboo earth retaining structure |
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2016
- 2016-06-21 CN CN201610451356.6A patent/CN105908763B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203129156U (en) * | 2012-12-27 | 2013-08-14 | 中交第二航务工程勘察设计院有限公司 | High steep reinforcement side slope structure |
| JP2016108936A (en) * | 2014-11-26 | 2016-06-20 | 耕治 山内 | Bamboo earth retaining structure |
Non-Patent Citations (2)
| Title |
|---|
| 冯光乐等: "复杂断面加筋土挡墙的设计方法", 《公路交通科技》 * |
| 阮小龙: "高填方边坡昔格达土改性及加筋机理研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987335A (en) * | 2019-12-20 | 2020-04-10 | 防灾科技学院 | Method and device for determining position of potential fracture surface of two-stage reinforced soil structure |
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