CN109083157A - A kind of slip-crack surface bracing means and its construction method - Google Patents
A kind of slip-crack surface bracing means and its construction method Download PDFInfo
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- CN109083157A CN109083157A CN201811135607.5A CN201811135607A CN109083157A CN 109083157 A CN109083157 A CN 109083157A CN 201811135607 A CN201811135607 A CN 201811135607A CN 109083157 A CN109083157 A CN 109083157A
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 209
- 238000005553 drilling Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 6
- 238000009412 basement excavation Methods 0.000 abstract description 5
- 230000005641 tunneling Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A kind of slip-crack surface bracing means and its construction method, bracing means include from slip-crack surface and the intersection of earth's surface to several spaced reinforcing pile groups of shield tunnel or foundation pit direction；Reinforcing pile group includes several reinforcing piles that several are arranged into a column along the length direction setting of the length direction or foundation pit of shield tunnel；Reinforcing pile in adjacent two reinforcing piles group mutually staggers；The bottom end of reinforcing pile is embedded in slip-crack surface hereinafter, the top of reinforcing pile extends straight up and is located at slip-crack surface or more.Shearing resistance is provided using the bracing means that construction method of the present invention is implemented for slip-crack surface, to increase slip-crack surface shearing strength, slip-crack surface is reinforced, reinforcing pile weakens in excavation of foundation pit, Shield Tunneling and slope project or slip-crack surface is prevented to generate, to realize the effect for reducing the opposite sliding of slip-crack surface.
Description
Technical field
The invention belongs to geotechnical engineering field of reinforcement, and in particular to a kind of slip-crack surface bracing means and its construction method.
Background technique
Slip-crack surface mainly generates in landslide phenomenon and foundation pit, shield tunnel project.Slip-crack surface present in the phenomenon that comes down
Have a large amount of reinforcing modes at present, but not applicable for the slip-crack surface generated in Soft Deep Foundation Pit and shield tunnel project:
In base pit engineering, excavation of foundation pit has an impact hole surrounding soil, makes to cheat the sliding in hole of the outer soil body, so that excavation of foundation pit slides
Slip-crack surface is formed between area and non-slip area；Ibid, it is also lost along with surrounding soil during Shield Tunneling, to make
The a certain range of soil body settles downwards, forms slip-crack surface between decanting zone and non-decanting zone.It is controlled not at that time when to slip-crack surface,
The generation of slip-crack surface often has an adverse effect to ambient enviroment in foundation pit and shield tunnel project, mainly make surrounding road,
Building and various facilities, which are deformed, even to be destroyed, or even is caused casualties.It prevents the generation of slip-crack surface or reduces slip
It is particularly important with respect to protection of the slide displacement to life and property at face.
The method for preventing slip-crack surface from generating or reduce relative displacement at slip-crack surface has very much, mainly adopts in base pit engineering
With foundation pit supporting construction rigidity is increased, to reduce building enclosure deformation, surrounding soil is influenced to reduce in Excavation Process；
For the loss of the better shield machine control surrounding soil of passage capacity main in shield tunnel project.But it is rigid to increase building enclosure
Ground loss rate is limited to the control of slip-crack surface during degree and reduction shield tunnel construction, and rationality of technique and economy is poor.Often
Anchorage technology in the landslide control application difficult in foundation pit and shield tunnel project.
Summary of the invention
In order to solve the disadvantage that existing slip-crack surface bracing means reinforcement performance is poor, application difficult, the present invention provides one
Kind slip-crack surface bracing means and its construction method.
The technical solution adopted by the present invention is that:
The embodiment of the present application provides a kind of slip-crack surface bracing means, including slip-crack surface, and the slip-crack surface is inclined-plane, and described
Inclined-plane tilts down extension from the slip-crack surface and the intersection of earth's surface to shield tunnel or foundation pit；
The slip-crack surface is equipped with the bracing means, and the bracing means includes the intersection from the slip-crack surface and earth's surface
To several spaced reinforcing pile groups of shield tunnel or foundation pit direction；
The reinforcing pile group includes that several are arranged simultaneously along the length direction of shield tunnel or the length direction interval of foundation pit
Several reinforcing piles to form a line；Reinforcing pile in adjacent two reinforcing piles group mutually staggers；The bottom end of the reinforcing pile is fixed
It is embedded in the slip-crack surface hereinafter, the top of the reinforcing pile extends straight up and is located at the slip-crack surface or more.
Further, each reinforcing pile group is parallel to each other.
Further, the spacing between adjacent two reinforcing piles group is equal.
Further, the spacing in each reinforcing pile group between adjacent two reinforcing pile is equal.
Further, it is positive integer that the bracing means, which includes m reinforcing pile group, m >=2, and m,；
When n is even number, k-th of reinforcing pile in the n-th column reinforcing pile group is located at k-th in the (n-1)th column reinforcing pile group
On the perpendicular bisector of the line between+1 reinforcing pile of kth in reinforcing pile and the (n-1)th column reinforcing pile group；And the n-th column reinforcing pile group
K-th interior of reinforcing pile is located at the kth+1 in k-th of the reinforcing pile and the (n+1)th column reinforcing pile group in the (n+1)th column reinforcing pile group
On the perpendicular bisector of line between a reinforcing pile；
K-th of reinforcing pile ,+1 reinforcing pile of kth and the (n-1)th column reinforcing pile when n is odd number, in the n-th column reinforcing pile group
K-th of reinforcing pile in group is equidistant；And n-th k-th of reinforcing pile ,+1 reinforcing pile of kth and n-th in column reinforcing pile group
K-th of reinforcing pile in+1 column reinforcing pile group is equidistant；
Wherein, 1≤n≤m, and n is positive integer, k is positive integer.
Further, each reinforcing pile is parallel to each other.
Further, the reinforcing pile is in cylindrical shape.
The embodiment of the present application also provides a kind of construction method of slip-crack surface bracing means, comprising the following steps:
(1) on the slip-crack surface near shield tunnel or foundation pit location arrangements first row reinforcing pile group each reinforcing
Each first setting position of stake；
(2) the n-th column are sequentially arranged upwards along the inclined-plane according to the spacing between preset adjacent reinforcing pile group to reinforce
Each n-th setting position of each reinforcing pile in stake group；Reinforcing pile in adjacent two reinforcing piles group mutually staggers, it may be assumed that
When n is even number, k-th n-th setting positions in the n-th column reinforcing pile group are located in the (n-1)th column reinforcing pile group
The perpendicular bisector of the line between kth+1 (n-1)th setting position in k-th (n-1)th setting positions and the (n-1)th column reinforcing pile group
On；And be located in the (n+1)th column reinforcing pile group k-th (n+1)th of the n-th k-th n-th setting positions in column reinforcing pile group are arranged
On the perpendicular bisector of the line between kth+1 (n+1)th setting position in position and the (n+1)th column reinforcing pile group；
When n is odd number ,+1 n-th k-th n-th setting positions, kth setting position in the n-th column reinforcing pile group and the
K-th n-th in n-1 column reinforcing pile group setting positions are equidistant；And the n-th k-th n-th setting positions in column reinforcing pile group
It sets, kth+1 n-th setting position is equidistant with k-th (n+1)th setting positions in the (n+1)th column reinforcing pile group；
(3) it successively drills on each first setting position to each m setting position；
(4) successively in each drilling placing concrete to form reinforcing pile.
The invention discloses a kind of slip-crack surface bracing means and its construction methods, for reinforcing to slip-crack surface.This hair
Bright utilization is plugged in the reinforcing on slip-crack surface and reinforces stake body offer build-in force, shearing resistance is provided for slip-crack surface, to increase cunning
Broken face shearing strength, reinforces slip-crack surface.Wedge action and slip using the reinforcing pile for being located at slip-crack surface or less part
The barrier action of the reinforcing pile of face above section has the function that reinforce slip-crack surface, be opened with reaching in excavation of foundation pit, shield tunnel
It digs and weakens in slope project or slip-crack surface is prevented to generate, to realize the effect for reducing slip-crack surface sliding relatively.
The beneficial effects of the present invention are embodied in:
1, the present invention reinforces slip-crack surface as reinforcing pile using cement mixing pile, relative to existing to soft clay area
The anchor cable structure that slip-crack surface is reinforced can substantially reduce engineering construction difficulty.
2, each reinforcing pile all be located at its position slip-crack surface at, reinforcing pile lower half portion be located at slip-crack surface with
Under, reinforcing pile top half is located at slip-crack surface or more, and the build-in force of reinforcing pile lower half portion pile body is transmitted to gliding mass by reinforcing pile,
Slip-crack surface shearing resistance is improved, so as to reinforce slip-crack surface.
3, the reinforcing pile in adjacent two reinforcing piles group is staggeredly arranged, rather than is mutually aligned, and can avoid between two reinforcing piles
Soil body sliding, the effect for reinforcing slip-crack surface is further functioned as with this.
Detailed description of the invention
Fig. 1 is front view of the invention in an embodiment.
Fig. 2 is top view of the invention in an embodiment.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the invention patent, it is clear that described
Embodiment is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, such as there is term "
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace such as occur
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Referring to attached drawing, the present invention provides a kind of slip-crack surface bracing means, including slip-crack surface 2, and the slip-crack surface 2 is inclined-plane,
And the inclined-plane tilts down extension from the slip-crack surface and the intersection of earth's surface 4 to shield tunnel 3 or foundation pit；
Specifically, when building the shield tunnel 3 or the foundation pit, the shield tunnel 3 along its length two
The two sides of side or the foundation pit along its length will appear the slip-crack surface 2.The slip-crack surface 2 is filled equipped with the reinforcing
It sets, the bracing means includes being arranged from the slip-crack surface and the intersection of earth's surface 4 to shield tunnel 3 or foundation pit direction interval
Several reinforcing pile groups, the reinforcing pile group includes several along the length direction of shield tunnel 3 or the length direction of foundation pit
Interval setting is arranged into several reinforcing piles 1,6,7 of a column；Reinforcing pile 1,6,7 in adjacent two reinforcing piles group mutually staggers,
The bottom end fixation of the reinforcing pile 1,6,7 is embedded in the slip-crack surface hereinafter, the top of the reinforcing pile 1,6,7 is prolonged straight up
It stretches and is located at 2 or more the slip-crack surface.
Further, each reinforcing pile group is parallel to each other
Further, the spacing between adjacent two reinforcing piles group is equal.
Further, the spacing in each reinforcing pile group between adjacent two reinforcing pile 1,6,7 is equal.
Further, it is positive integer that the bracing means, which includes m reinforcing pile group, m >=2, and m,；
When n is even number, k-th of reinforcing pile 1,6,7 in the n-th column reinforcing pile group is located in the (n-1)th column reinforcing pile group
The perpendicular bisector of the line between+1 reinforcing pile of kth 1,6,7 in k-th of reinforcing pile 1,6,7 and the (n-1)th column reinforcing pile group (is
Perpendicular bisector on landslide surface 2) on；And n-th k-th of reinforcing pile 1,6,7 in column reinforcing pile group is located at the (n+1)th column and reinforces
In the line between+1 reinforcing pile of kth 1,6,7 in k-th of reinforcing pile 1,6,7 and the (n+1)th column reinforcing pile group in stake group
On vertical line；
When n is odd number, k-th of reinforcing pile in the n-th column reinforcing pile group 1,6,7 ,+1 reinforcing pile of kth 1,6,7 and the
K-th of reinforcing pile 1,6,7 in n-1 column reinforcing pile group is equidistant；And n-th k-th of the reinforcing pile 1 in column reinforcing pile group,
6,7 ,+1 reinforcing pile of kth 1,6,7 is equidistant with k-th of reinforcing pile 1,6,7 in the (n+1)th column reinforcing pile group；
Wherein, 1≤n≤m, and n is positive integer, k is positive integer.
Further, each reinforcing pile 1 is parallel to each other.
Further, the reinforcing pile 1 is in cylindrical shape.
Specifically, 1,6,7 length of reinforcing pile is 2~4m, stake diameter is 1~3m, adjacent two reinforcing pile in reinforcing pile group
1, the spacing between 6,7 can be selected according to soil arching effect, and the spacing between adjacent two reinforcing piles group can be controlled according to slip-crack surface and be imitated
Fruit is selected；The reinforcing pile 1,6,7 is inserted into the half that slip-crack surface following depth is 1,6,7 length of reinforcing pile.
It is arranged where position specifically, concrete is sprayed into reinforcing pile by mixing pile machine by the reinforcing pile 1,6,7
It in drilling and is sufficiently stirred, makes concrete and soil that physical and chemical changes occur, so that reinforcing pile 1,6,7 hardens.This reality
Example is applied using cement mixing pile as reinforcing pile 1,6,7, is that cost is relatively low because of cement mixing pile, and it is sliding to be suitable for reinforcing soft soil
Broken face.
A kind of construction method of slip-crack surface bracing means described in the present embodiment, comprising the following steps:
(1) according to the spacing between two reinforcing pile 1,6,7 adjacent in preset reinforcing pile group, on the slip-crack surface 2 most
Close to the first setting position of each reinforcing pile 1,6,7 of the location arrangements first row reinforcing pile group of shield tunnel 3 or foundation pit, each institute
The first setting position is stated along the length direction setting of the length direction or foundation pit of the shield tunnel；
(2) the n-th column are sequentially arranged upwards along the inclined-plane according to the spacing between preset adjacent reinforcing pile group to reinforce
Each n-th setting position of each reinforcing pile 1,6,7 in stake group；Reinforcing pile 1,6,7 in adjacent two reinforcing piles group mutually staggers,
That is:
When n is even number, k-th n-th setting positions in the n-th column reinforcing pile group are located in the (n-1)th column reinforcing pile group
The perpendicular bisector of the line between kth+1 (n-1)th setting position in k-th (n-1)th setting positions and the (n-1)th column reinforcing pile group
On (being the perpendicular bisector on landslide surface 2)；And the n-th k-th n-th setting positions in column reinforcing pile group be located at the (n+1)th column plus
Gu between k-th (n+1)th setting positions in stake group and+1 (n+1)th setting position of kth in the (n+1)th column reinforcing pile group
On the perpendicular bisector of line；
When n is odd number ,+1 n-th k-th n-th setting positions, kth setting position in the n-th column reinforcing pile group and the
K-th n-th in n-1 column reinforcing pile group setting positions are equidistant；And the n-th k-th n-th setting positions in column reinforcing pile group
It sets, kth+1 n-th setting position is equidistant with k-th (n+1)th setting positions in the (n+1)th column reinforcing pile group；
(3) it successively drills on each first setting position to each m setting position；
(4) successively in each drilling placing concrete to form reinforcing pile 1,6,7.
Firstly, the present invention is reinforced using cement mixing pile as 1,6,7 pair of slip-crack surface 2 of reinforcing pile, relative to existing
The anchor cable structure reinforced to soft clay area slip-crack surface 2 can substantially reduce engineering construction difficulty.Secondly, each reinforcing pile
1,6,7 all be located at its position slip-crack surface 2 at, 1,6,7 lower half portion of reinforcing pile is located at slip-crack surface 2 hereinafter, reinforcing pile 1,
6,7 top halfs are located at 2 or more slip-crack surface, and reinforcing pile 1,6,7 transmits the build-in force of 1,6,7 lower half portion pile body of reinforcing pile
To gliding mass 5,2 shearing resistance of slip-crack surface is improved, so as to reinforce slip-crack surface 2.In addition, reinforcing pile 1 in adjacent two reinforcing piles group,
6, it 7 is staggeredly arranged, rather than is mutually aligned, can avoid soil body sliding between two reinforcing piles 1,6,7, reinforcing is further functioned as with this
The effect of slip-crack surface 2.
In the construction process, it is first determined 2 specific location of slip-crack surface, then determine the 1st column reinforcing pile group of 2 bottom of slip-crack surface
Position, that is, construction is unfolded from lower to upper from the inclined-plane, to avoid 1,6,7 pair of top of lower section construction reinforcement stake plus
Gu stake 1,6,7 causes excessive influence.Then spacing between one adjacent reinforcing pile group is set, in the upper of first row reinforcing pile group
Side determines the position of secondary series reinforcing pile group.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range is not construed as being only limitted to the concrete form of embodiment statement, and protection scope of the present invention is also and in those skilled in the art
Member according to the present invention design it is conceivable that equivalent technologies mean.
Claims (8)
1. a kind of slip-crack surface bracing means, it is characterised in that: including slip-crack surface, the slip-crack surface is inclined-plane, and the inclined-plane is certainly
The slip-crack surface and the intersection of earth's surface tilt down extension to shield tunnel or foundation pit；
The slip-crack surface is equipped with the bracing means, and the bracing means includes from the slip-crack surface and the intersection of earth's surface to shield
Structure tunnel or several spaced reinforcing pile groups of foundation pit direction；
The reinforcing pile group includes that several are arranged into along the length direction interval setting of the length direction or foundation pit of shield tunnel
Several reinforcing piles of one column；Reinforcing pile in adjacent two reinforcing piles group mutually staggers；The bottom end fixation of the reinforcing pile is embedded
In the slip-crack surface hereinafter, the top of the reinforcing pile extends straight up and is located at the slip-crack surface or more.
2. a kind of slip-crack surface bracing means as described in claim 1, it is characterised in that: each reinforcing pile group is parallel to each other.
3. a kind of slip-crack surface bracing means as claimed in claim 2, it is characterised in that: the spacing between adjacent two reinforcing piles group
It is equal.
4. a kind of slip-crack surface bracing means as claimed in claim 3, it is characterised in that: adjacent two reinforcing pile in each reinforcing pile group
Between spacing it is equal.
5. a kind of slip-crack surface bracing means as claimed in claim 4, it is characterised in that: the bracing means includes m reinforcing
Stake group, m >=2, and m are positive integer；
When n is even number, k-th of reinforcing pile in the n-th column reinforcing pile group is located at k-th of reinforcing in the (n-1)th column reinforcing pile group
On the perpendicular bisector of the line between+1 reinforcing pile of kth in stake and the (n-1)th column reinforcing pile group；And n-th in column reinforcing pile group
K-th of reinforcing pile is located at kth+1 reinforcing in k-th of the reinforcing pile and the (n+1)th column reinforcing pile group in the (n+1)th column reinforcing pile group
On the perpendicular bisector of line between stake；
When n is odd number, in+1 k-th of the reinforcing pile, kth reinforcing pile and the (n-1)th column reinforcing pile group in the n-th column reinforcing pile group
K-th reinforcing pile be equidistant；And the n-th k-th of reinforcing pile ,+1 reinforcing pile of kth and the (n+1)th column in column reinforcing pile group
K-th of reinforcing pile in reinforcing pile group is equidistant；
Wherein, 1≤n≤m, and n is positive integer, k is positive integer.
6. a kind of slip-crack surface bracing means as claimed in claim 5, it is characterised in that: each reinforcing pile is parallel to each other.
7. a kind of slip-crack surface bracing means as claimed in claim 6, it is characterised in that: the reinforcing pile is in cylindrical shape.
8. a kind of construction method of slip-crack surface bracing means as described in any one of claim 1 to 7, which is characterized in that including
Following steps:
(1) on the slip-crack surface near shield tunnel or foundation pit location arrangements first row reinforcing pile group each reinforcing pile
Each first setting position；
(2) it is sequentially arranged the n-th column reinforcing pile group upwards along the inclined-plane according to the spacing between preset adjacent reinforcing pile group
Each n-th setting position of interior each reinforcing pile；Reinforcing pile needs in adjacent two reinforcing piles group mutually stagger, it may be assumed that
When n is even number, k-th n-th setting positions in the n-th column reinforcing pile group are located at k-th in the (n-1)th column reinforcing pile group
On the perpendicular bisector of the line between kth+1 (n-1)th setting position in (n-1)th setting position and the (n-1)th column reinforcing pile group；And
K-th n-th in n-th column reinforcing pile group setting positions be located at k-th (n+1)th setting positions in the (n+1)th column reinforcing pile group with
On the perpendicular bisector of the line between kth+1 (n+1)th setting position in (n+1)th column reinforcing pile group；
+ 1 n-th k-th n-th setting positions, kth setting position and the (n-1)th column when n is odd number, in the n-th column reinforcing pile group
K-th n-th in reinforcing pile group setting positions are equidistant；And the n-th k-th n-th setting position in column reinforcing pile group,
K+1 n-th setting position is equidistant with k-th (n+1)th setting positions in the (n+1)th column reinforcing pile group；
(3) it successively drills on each first setting position to each m setting position；
(4) successively in each drilling placing concrete to form reinforcing pile.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899085A (en) * | 2019-03-08 | 2019-06-18 | 中铁十二局集团有限公司 | The construction method on steel-pipe pile and crown beam punishment tunnel portal landslide |
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| CN108265732A (en) * | 2018-03-21 | 2018-07-10 | 中铁第四勘察设计院集团有限公司 | Antiskid built pile retaining structure and its construction method |
| CN108343077A (en) * | 2018-04-23 | 2018-07-31 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of Miniature anti-slide pile composite structure and its construction method |
| CN209162842U (en) * | 2018-09-28 | 2019-07-26 | 浙江工业大学 | A kind of slip-crack surface bracing means |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109899085A (en) * | 2019-03-08 | 2019-06-18 | 中铁十二局集团有限公司 | The construction method on steel-pipe pile and crown beam punishment tunnel portal landslide |
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