CN107288124B - Oblique cutting board positioning method based on friction pile excavation operating mode - Google Patents

Oblique cutting board positioning method based on friction pile excavation operating mode Download PDF

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CN107288124B
CN107288124B CN201710527117.9A CN201710527117A CN107288124B CN 107288124 B CN107288124 B CN 107288124B CN 201710527117 A CN201710527117 A CN 201710527117A CN 107288124 B CN107288124 B CN 107288124B
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plate
mould plate
oblique cutting
friction pile
pile
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CN107288124A (en
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陈雷
屈俊童
张可军
孙希望
孟资成
张智聪
屈林河
李能
石有权
赵利奎
张大可
王志伟
李伟
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CREEC Kunming Survey Design and Research Co Ltd
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CREEC Kunming Survey Design and Research Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • 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
    • E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads

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  • Architecture (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

The present invention relates to a kind of oblique cutting board positioning method based on friction pile excavation operating mode, belong to slope project field, this method comprises the following steps：（1）The making of mould plate；（2）The grid DEM of mould plate；（3）Mould plate horizontal level calculates；（4）Mould plate positions；（5）Oblique cutting plate positions.The method of the present invention is positioned using mould plate in friction pile, and single positioning in the past, the technology convenient and quick construction are replaced with overall position；Not only accurate positioning, and be avoided that and conflict with stirrup in friction pile and bearing rod；Integrally reduce retaining wall beyond the oblique cutting plate of friction pile both sides from engineering to remove, because oblique cutting plate both ends are mounted in retaining wall, improve overall security, be also prevented from junction steel bar corrosion.Mould plate can reuse, and compared with other positioning methods, save investment.

Description

Oblique cutting board positioning method based on friction pile excavation operating mode
Technical field
The present invention relates to a kind of oblique cutting board positioning method, especially a kind of oblique cutting plate positioning based on friction pile excavation operating mode Method, belong to all slope project fields.
Background technology
Pile plate wall is used widely in slope supporting protection at present, and inclined inserting sheet pile wall is in common peg board foundation of wall On a new technology growing up, with building beautiful China and green channel and build beautiful Yunnan implementation, Side slope is increasingly taken seriously using green reinforcement protection, and side slope replaces presently, there are using green reinforcement protection part or comprehensively Pure concrete or mortar flag stone structure by be from now on slope reinforcement protection trend.Inclined inserting sheet pile wall technology obtains in Yunnan Widely apply, and have been written into Yunnan Province's local regulation《Yunnan Province mountainous city design of municipal road directive/guide》, it is specified that there is scape Sight requires that location pile plate wall uses inclined inserting sheet pile wall.Inclined inserting sheet pile wall structure is that one kind of conventional pile plate wall is optimized, and is led to After engineering practice and scientific research for many years, it is perfect that problem existing for mutual-inserting type peg board wall construction has carried out a large amount of improvement, at present The technology is ripe in terms of construction is designed into, and security, durability and the construction technology of structure are resolved, in curb The operating modes such as pile plate wall, embankment pile plate wall and cutting pile plate wall are applied successfully.
Inclined inserting sheet pile wall is the developing direction of peg board wall technology due to its good reinforcement protection effect, oblique cutting plate Location technology is the important component of inclined inserting sheet pile wall, former pile plate wall position inaccurate, and efficiency is low and connection can Low by property is exactly an important factor for inclined inserting sheet pile wall is difficult to promote, and creates condition for the popularization of inclined inserting sheet pile wall, at present It is badly in need of a kind of precise and high efficiency, low cost localization method.
The content of the invention
In order to solve the above-mentioned technical problem, we are summarized by the advantage and disadvantage of the various location technologies to oblique cutting plate, Draw a kind of safe and reliable, the easy for construction oblique cutting plate location technology of structure connection.The thinking of the location technology is：All to connect Connect the positioning respectively of single connection reinforcing bar before reinforcing bar (connection friction pile and oblique cutting plate) overall positioning replaces.The present invention's is specific Scheme is as follows：
A kind of oblique cutting board positioning method based on friction pile excavation operating mode, comprises the following steps：
1) making of mould plate：Make with oblique cutting plate side view mould plate of the same size, according to oblique cutting on mould plate Plate reinforcement bar arrangement reserves multiple connecting holes；
2) grid DEM of mould plate：
First, using the relatively low friction pile of stake top absolute altitude in adjacent two friction piles as positioning datum stake；Secondly, preference pattern Wherein three angle points of plate are elevation location point, computation model plate elevation.
3) mould plate horizontal level calculates：
Using 3 angles of mould plate as horizontal location point, each angle is calculated to the distance of friction pile side, and then obtain model Horizontal level needed for plate；
4) mould plate positions：
After calculating friction pile position, the hole of certain depth is dug along the retaining wall position of friction pile, props up vertical friction pile first segment Dado template, pour breast wall concrete；After breast wall concrete is molded, result of calculation according to step 2) and 3), in friction pile The position of mould plate is determined in stake holes, is close to antiskid pile wall, and by position of positioning hole mark on antiskid pile wall； Drilled on the position mark of retaining wall, and connection reinforcing bar is inserted in retaining wall hole；Then along antiskid pile wall position borehole, branch the Two section dado templates, retaining wall, positioning, drilling, insertion connection reinforcing bar are poured, repeated the above steps, until last block oblique cutting plate Position location；
5) oblique cutting plate positions：
After the intensity of friction pile reaches the intensity of code requirement, excavate stake before and inter-pile soil body, mould plate is inserted in stake Outer connection reinforcing bar, oblique cutting Board position is determined according to mould plate outer edge, the retaining wall of mould plate corresponding part is cut and taken out；Colligation Oblique cutting slab muscle, formwork pour oblique cutting plate, make in oblique cutting plate both ends insertion retaining wall, fully ensure that the stability of oblique cutting plate.
Further, the mould plate includes A type mould plate and B-mode mould plate, wherein, A type mould plate plate thickness is small In B-mode mould plate, the mould plate is the pentagon for including three right-angle sides, and positioning hole is three rows, the distance between each row phase Identical with the distance between hole with and per round, connection reinforcing bar is located in positioning hole.
Further, the A type mould plate and B-mode mould plate are equipped with 15 positioning holes, and positioning hole aperture is 28mm, Spacer bar is φ 28HRB400 reinforcing bars, long 600mm.
Further, in step 2), the elevation location of mould plate is specific as follows：
First, stake is positioned on the basis of selecting the friction pile that stake top absolute altitude is relatively low in adjacent two friction piles；Secondly, choosing Right angle by two obtuse angles of mould plate and adjacent right angle is 1,2, No. 4 elevation location point, and other two right angle is followed successively by 3, No. 5 For point as point is checked, grid DEM formula is as follows：
hm=l × sina+k × cosa
In above formula：
Hi-1,b- as i-1=0, H0,bFor in adjacent two compared with stump stake top absolute altitude；
Hi,a- from top to bottom, the elevation of i-th 1, No. 2 point of block models plate；
Hi,b- from top to bottom, the elevation of the i-th No. 4 points of block models plate；
NmSlight slope height between-mould plate plate；
hmThe vertical spacing in-mould plate plate top；
L-mould plate longest edge length；
α --- mould plate inclination angle, unit：°；
K --- chamfering residual altitude；In formula, parasang is m；
Further, the horizontal location method is as follows：
Using No. 1 point as positioning datum point, distance calculation formula of 1~No. 5 point away from friction pile backer's body side, formula is such as Under：
L1=X-b2
L3=L4- w × sina=L1+(k-w)×sina-l×cosa
L4=L5- l × cosa=L1+k×sina-l×cosa
L5=L1+k×sina
In above formula：
X --- it is friction pile cross-sectional width, X 1.5m, 1.75m, 2.0m, 2.25m or 2.50m；
b2--- friction pile leading edge cuts bevel width
L1~L5--- respectively 1~No. 5 anchor point is away from the stake side horizontal range by friction pile backer's body side；
W --- mould plate plate is wide；
L --- mould plate plate is grown；
α --- mould plate level inclination, 43 ° of 45 ° of ＜ α ＜；
K --- chamfering residual altitude；In formula, parasang is m；Optional 2 of 2-5 points are used as anchor point, and remaining is Check point.
Further, in step (4), according to lifting steel reinforcement cage, before antiskid pile cages are placed, not embedded connection steel Muscle, inserted after the completion of steel reinforcement cage placement, then by connection reinforcing bar in retaining wall drilling, it is 300mm to fill in depth.
Beneficial effects of the present invention are as follows：
(1) speed is fast, and accuracy rate is high.Being positioned by root for connection reinforcing bar is substituted with the overall positioning of all connection reinforcing bars, subtracted Number is positioned less, once completes the positioning of more reinforcing bars；
(2) solves the connectivity problem of oblique cutting plate and friction pile.After friction pile pours completion and reaches design strength, open Dig friction pile stake between and stake before the soil body, mould plate is inserted in connection reinforcing bar, oblique cutting Board position is determined according to mould plate outer edge, only The retaining wall of mould plate position of oblique cutting plate (installation) part need to be dug out, without whole retaining wall is removed, then colligation oblique cutting slab Muscle, formwork pour oblique cutting plate, and oblique cutting plate is poured into retaining wall, reduce the quantity of retaining wall dismounting on the whole from engineering.Due to Oblique cutting plate both ends are mounted in retaining wall, improve overall security, can effectively prevent junction steel bar corrosion.
(3) strong operability.The technology is positioned using elevation combination horizontal range to three angle points of mould plate, when known It during friction pile height of pile top, the portable instruments such as steel tape can be used to be positioned in friction pile to oblique cutting slab muscle, be easy to construction to grasp Work is implemented.
(4) mould plate low cost.Mould plate is made using lignum vitae, it is only necessary to 2 block models plates, used using continuous productive process Needs of constructing can be met, mould plate may be reused, and cost is relatively low.
Brief description of the drawings
Fig. 1 is the structural representation of the mould plate of the present invention；
Fig. 2 is the structural representation of the mould plate elevation location of the present invention；
Fig. 3 is the structural representation of rescinded angle formula horizontal location before mould plate of the invention；
Fig. 4 is the structural representation of rescinded angle formula horizontal location before one of mould plate；
Fig. 5 is that the mould plate of the present invention is adjacent to the structural representation of retaining wall；
Fig. 6 is the structural representation for setting spacer bar in friction pile by mould plate of the present invention；
Fig. 7 is the structural representation that oblique cutting plate is positioned at friction pile；
Embodiment
Below in conjunction with the accompanying drawing in case history, the technical scheme of example is carried out clearly and completely according to the present invention Description, it is clear that described embodiment is only to a part of example of the present invention, rather than whole examples.Based on the present invention In example, the every other example that those of ordinary skill in the art are obtained under the premise of creative work is not paid, all Belong to the scope of protection of the invention.
Embodiment 1
The present embodiment is the oblique cutting board positioning method based on friction pile excavation operating mode, is comprised the following steps：
(1) making of mould plate
As shown in figure 1, making with oblique cutting plate cross-sectional sizes identical mould plate 6, the mould plate section includes three directly The distance between the pentagon of the arm of angle, including three row's positioning holes 7, each row are identical and identical with the distance between hole per round, its In, including the first obtuse angle 1, the second obtuse angle 2, the first right angle 3, the second right angle 4 and the 3rd right angle 5.
The sectional dimension identical mould plate with oblique cutting plate is made from plank thick 10mm, the mould plate is only on retaining wall Reinforcement location to be made, is not cast in friction pile, its open pore size is 28mm (outside dimension of the size of reinforcing bars of φ 28), Prepare the φ 28HRB400 reinforcing bars of quantity identical with whole friction piles positioning hole count, long 600mm.According to design requirement, friction pile Top uses A type mould plate, and bottom uses B-mode mould plate, and a width of 0.35 meter of A type mould plate plate, A type mould plate plate is a width of 0.4 meter.
(2) grid DEM of mould plate：
As shown in Fig. 2 first, the friction pile that stake top absolute altitude is relatively low in adjacent two friction piles is selected to be positioned；Secondly, The first obtuse angle 1, the second obtuse angle 2 and the second right angle 4 of modeling template are followed successively by 1,2, No. 4 elevation location point, other two right angle Being followed successively by 3, No. 5 points can be as follows as check point, grid DEM formula：
hm=l × sina+k × cosa
In above formula：
H --- as i-1=0, H0,bFor in adjacent two compared with stump stake top absolute altitude (m)；
Hi,a--- from top to bottom, the elevation (m) of i-th block of oblique cutting plate, 1, No. 2 point；
Hi,b--- from top to bottom, the elevation (m) of No. 4 points of i-th block of oblique cutting plate；
Nm--- slight slope height (m) between oblique cutting plate plate；
hm--- the vertical spacing (m) in oblique cutting plate plate top；
L --- oblique cutting plate plate grows (m)；
α --- oblique cutting plate inclination angle (°)；
K --- chamfering residual altitude (m).
(3) mould plate level calculation：
Friction pile soil pressure suffered by is of different sizes, conventional five kinds of sectional dimensions：1.5m×1.5m、1.5m× 1.75m、1.5m×2.0m、1.5m×2.25m、1.5m×2.50m。
As shown in Figure 3-4, using No. 1 point as positioning datum point, horizontal range meter of 1~No. 5 point away from friction pile backer side Formula is calculated, formula is as follows：
L1=X-b2
L3=L4- w × sina=L1+(k-w)×sina-l×cosa
L4=L5- l × cosa=L1+k×sina-l×cosa
L5=L1+k×sina
In above formula：
X --- it is friction pile cross-sectional width, X 1.5m, 1.75m, 2.0m, 2.25m or 2.50m；
b2--- friction pile leading edge cuts bevel width；
L1~L5--- respectively 1~No. 5 point is away from the stake side vertical range that original side slope side is leaned on by friction pile；
W --- mould plate plate is wide；
L --- mould plate plate is grown；
α --- mould plate level inclination, 43 ° of 45 ° of ＜ α ＜；
K --- chamfering residual altitude (m)；In formula, parasang is m, and A type plate k is 0.07m, and B-mode plate k is 0.1m. It is anchor point that 1,2, No. 4 point, which may be selected, and remaining is check point.
It can be seen from existing achievement in research, the most reasonable inclination alpha of oblique cutting plate is 43 °, considers difficulty of construction, engineering reality The inclination angle of oblique cutting plate is generally designed as 45 ° at present in.
The friction pile section of excavation operating mode is larger, and is rectangle, typically from manually digging hole, therefore has one layer on the outside of friction pile Thick 200mm retaining wall.
(4) mould plate positions, and comprises the following steps：
A, after determining friction pile position, as shown in Fig. 2 along the position borehole of retaining wall 11 of friction pile 9, depth is generally 2m, vertical friction pile first segment dado template is propped up, pours breast wall concrete；
B, after breast wall concrete is molded, dado template is removed, according to step (2), the result of calculation of (3), by mould plate 6 Position is set by corresponding elevation and horizontal range, is then close to retaining wall, and the positioning hole mark on mould plate is existed with red paint On antiskid pile wall, as shown in Figure 5；
C, drilling is painted with red on retaining wall 11 of air pressure gun, aperture is 28~30mm, and aperture need to ensure φ 28HRB400 steel Muscle 10 can be inserted smoothly, drilling depth 300mm, and ready long 600mm φ 28HRB400 reinforcing bars then are inserted into retaining wall In hole；
D, after the completion of, continue then to be propped up the second section dado template by depth 2m boreholes along antiskid pile wall position, poured shield Wall, positioning, drilling, insertion spacer bar, circulate this step, to position needed for last block oblique cutting plate；
According to lifting steel reinforcement cage, connection reinforcing bar is inserted in retaining wall hole again after steel reinforcement cage installation, insertion depth is 300mm, as shown in Figure 6；
(5) oblique cutting plate positions
Friction pile is poured, when friction pile intensity reaches 70%, excavates before stake and inter-pile soil body, mould plate is inserted in outside stake and connected Reinforcing bar is connect, oblique cutting Board position is determined according to mould plate outer edge, oblique cutting plate (mould plate) corresponding part retaining wall is cut and taken out；Will The reinforcing bar of oblique cutting plate 13 and the bar splicing for stretching out friction pile 300mm, formwork pour oblique cutting plate so that the both ends of oblique cutting plate 13 are embedded in In retaining wall, the positioning of oblique cutting plate is completed, as shown in Figure 7.
The technology can avoid the connection reinforcing bar of oblique cutting plate from conflicting with the stirrup position of friction pile.It can allow the hoop of friction pile Muscle contacts with part connection reinforcing bar.
Embodiment 2
The friction pile for strangling highway to Kunming Dongchuan to lattice using the method for embodiment 1 implements the positioning of oblique cutting plate.
By taking the oblique cutting plate positioning of the left side pile plate wall 1#-2# friction piles of K32+860~+930 as an example.
Friction pile design of pile top is rescinded angle formula after excavation, and oblique cutting plate inclination angle is designed as 45 °, and friction pile and oblique cutting plate are basic Information is shown in Table 4.Five anchor points of mould plate are calculated according to the horizontal location formula of embodiment 1 to keep to the side slope one apart from friction pile Lateral extent Lj, A type plate is shown in Table 1, and B-mode plate is shown in Table 2,
1 A type plate of table, five anchor points keep to the side the lateral extent L of slope one away from friction pilej
Five anchor points of the B-mode plate of table 2 keep to the side the lateral extent L of slope one away from friction pilej
According to design requirement, 5 blocks of friction pile top oblique cutting plate uses A type mould plate, and middle and lower part uses B-mode mould plate. By taking the mould plate plate elevation location of first row in 2# friction piles as an example, calculated according to the elevation location formula of embodiment 1, be shown in Table 3.
Oblique cutting plate grid DEM table between 1# the and 2# friction piles of table 3
The friction pile of table 4 and oblique cutting plate essential information
Note：Nm、hmMiddle m=1 represents A type plate, and m=2 represents B-mode plate.
Hxy--- which row's oblique cutting plate x represents, and which anchor point y represents；As H34 represents the 3rd No. 4 anchor points of row's oblique cutting plate Elevation.
Then the mode according to example 1 installs spacer bar, pours friction pile, installs oblique cutting plate, final to ensure oblique cutting plate Entirety is formed with 1#-2# friction piles, ensures the oblique cutting plate keep level after installation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.

Claims (6)

  1. A kind of 1. oblique cutting board positioning method based on friction pile excavation operating mode, it is characterised in that：Comprise the following steps：
    1) making of mould plate：Make with oblique cutting plate side view mould plate of the same size, match somebody with somebody on mould plate according to oblique cutting plate Reserve multiple connecting holes in muscle position；
    2) grid DEM of mould plate：
    First, using the relatively low friction pile of stake top absolute altitude in adjacent two friction piles as positioning datum stake；Secondly, preference pattern plate Wherein three angle points are elevation location point, computation model plate elevation；
    3) mould plate horizontal level calculates：
    Using 3 angles of mould plate as horizontal location point, each angle is calculated to the distance of friction pile side, and then obtain mould plate institute Need horizontal level；
    4) mould plate positions：
    After calculating friction pile position, the hole of certain depth is dug along the retaining wall position of friction pile, props up vertical friction pile first segment retaining wall Template, pour breast wall concrete；After breast wall concrete is molded, result of calculation according to step 2) and 3), in friction pile stake holes The position of mould plate is inside determined, is close to antiskid pile wall, and by position of positioning hole mark on antiskid pile wall；Protecting Drilled on the position mark of wall, and connection reinforcing bar is inserted in retaining wall hole；Then along antiskid pile wall position borehole, the section of branch second Dado template, retaining wall, positioning, drilling, insertion connection reinforcing bar are poured, repeated the above steps, until last block oblique cutting plate positions Position；
    5) oblique cutting plate positions：
    After the intensity of friction pile reaches the intensity of code requirement, excavate before stake and inter-pile soil body, mould plate is inserted in outside stake and connected Reinforcing bar is connect, oblique cutting Board position is determined according to mould plate outer edge, the retaining wall of mould plate corresponding part is cut and taken out；Colligation oblique cutting Slab muscle, formwork pour oblique cutting plate, make in oblique cutting plate both ends insertion retaining wall, fully ensure that the stability of oblique cutting plate.
  2. 2. the oblique cutting board positioning method according to claim 1 based on friction pile excavation operating mode, it is characterised in that：The mould Template includes A type mould plate and B-mode mould plate, and A type mould plate and B-mode mould plate are five sides for including three right-angle sides Shape, positioning hole are three rows, and the distance between each row is identical and identical with the distance between hole per round, and connection reinforcing bar is located at positioning Kong Zhong, A type mould plate plate thickness are less than B-mode mould plate.
  3. 3. the oblique cutting board positioning method according to claim 2 based on friction pile excavation operating mode, it is characterised in that：The first Pattern template and B-mode mould plate are equipped with 15 positioning holes, and positioning hole aperture is 28mm, and spacer bar isSteel Muscle, long 600mm.
  4. 4. the oblique cutting board positioning method according to claim 2 based on friction pile excavation operating mode, in step 2), mould plate Elevation location is specific as follows：
    First, stake is positioned on the basis of selecting the friction pile that stake top absolute altitude is relatively low in adjacent two friction piles；Secondly, modeling type Right angle by two obtuse angles of plate and adjacent right angle is 1,2, No. 4 elevation location point, and other two right angle is followed successively by 3, No. 5 points and made To check point, grid DEM formula is as follows：
    hm=l × sin α+k × cos α
    In above formula：
    Hi-1,b- as i-1=0, H0,bFor in adjacent two compared with stump stake top absolute altitude；
    Hi,a- from top to bottom, the elevation of i-th 1, No. 2 point of block models plate；
    Hi,b- from top to bottom, the elevation of the i-th No. 4 points of block models plate；
    NmSlight slope height between-mould plate plate；
    hmThe vertical spacing in-mould plate plate top；
    L-mould plate longest edge length；
    α --- mould plate inclination angle, unit：°；
    K --- chamfering residual altitude；In formula, parasang is m.
  5. 5. the oblique cutting board positioning method according to claim 2 based on friction pile excavation operating mode, it is characterised in that：It is described Horizontal location method is as follows：
    Right angle by two obtuse angles of modeling template and adjacent right angle is 1,2, No. 4 point, and other two right angle is followed successively by 3, No. 5 Point；
    Using No. 1 point as positioning datum point, distance calculation formula of 1~No. 5 point away from friction pile backer's body side, formula is as follows：
    L1=X-b2
    L3=L4- w × sin α=L1+(k-w)×sinα-l×cosα
    L4=L5- l × cos α=L1+k×sinα-l×cosα
    L5=L1+k×sinα
    In above formula：
    X --- it is friction pile cross-sectional width, X 1.5m, 1.75m, 2.0m, 2.25m or 2.50m；
    b2--- friction pile leading edge cuts bevel width；
    L1~L5--- respectively 1~No. 5 point is away from the stake side horizontal range by friction pile backer's body side；
    W --- mould plate plate is wide；
    L --- mould plate plate is grown；
    α --- mould plate level inclination, 43 ° of 45 ° of ＜ α ＜；
    K --- chamfering residual altitude；In formula, parasang is m；No. 2-5 clicks 2 and is used as anchor point, and remaining is check point.
  6. 6. the oblique cutting board positioning method according to claim 1 based on friction pile excavation operating mode, it is characterised in that：Step (4) in, according to lifting steel reinforcement cage, before antiskid pile cages are placed, not embedded connection reinforcing bar, place and complete when steel reinforcement cage Afterwards, then by connection reinforcing bar insert in retaining wall drilling, it is 300mm to fill in depth.
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Publication number Priority date Publication date Assignee Title
FR2555213A1 (en) * 1983-09-17 1985-05-24 Lueft Gmbh Steep ground wall support structure
JP2001342632A (en) * 2000-03-28 2001-12-14 Mawatari Shokai:Kk Assembly fence construction
JP2004137892A (en) * 2000-03-28 2004-05-13 Mawatari Shokai:Kk Built-up fence
CN101502223A (en) * 2009-03-31 2009-08-12 云南路桥股份有限公司 Slope soil-establishing greening apparatus and method
CN201581411U (en) * 2009-12-31 2010-09-15 中铁二院昆明勘察设计研究院有限责任公司 Inclined inserting sheet pile wall

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555213A1 (en) * 1983-09-17 1985-05-24 Lueft Gmbh Steep ground wall support structure
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