CN212104124U - Landslide prevention and control construction unit and system - Google Patents
Landslide prevention and control construction unit and system Download PDFInfo
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- CN212104124U CN212104124U CN202020147002.4U CN202020147002U CN212104124U CN 212104124 U CN212104124 U CN 212104124U CN 202020147002 U CN202020147002 U CN 202020147002U CN 212104124 U CN212104124 U CN 212104124U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a monomer and system are built in landslide prevention and cure. The utility model discloses the landslide prevention and cure monomer is arranged in 1/3 within ranges before the landslide body, constitute planar entry adit and flank adit of T type including mutually perpendicular, entry adit opening on domatic, horizontal extension to the glide plane in the slope body, entry adit end-to-end connection flank adit, arrange miniature steel pipe pile group in the flank adit, miniature steel pipe pile group upwards stretches into the landslide body, stretches into the following slope body of glide plane downwards. The utility model discloses landslide prevention construction system includes a plurality of monomers of building, respectively builds the monomer and arranges the system along the height of landslide body slip direction. The utility model discloses landslide prevention and cure builds two kinds of structures of monomer combination adit system and miniature steel pipe pile group system, has the environment and flexibles little obvious advantage, especially is fit for popularizing and adopting in the steep huge thick type landslide body prevention and cure engineering of height.
Description
Technical Field
The utility model relates to a monomer and system are built in landslide prevention and cure, especially relate to a monomer is built in landslide prevention and cure to the high steep slope of landslide body thickness not less than 50m, belong to mountain region environmental disaster prevention and cure engineering field.
Background
The high and steep slope with the landslide risk and the landslide body thickness of not less than 50m can be referred to as a high and steep type landslide body for short, and the accumulation body type is not limited to a loose layer accumulation body, but also comprises other accumulation body types such as rock strata, weak rock strata and the like. The threat of the landslide mass to traffic buildings such as roads passing below the landslide mass exceeds that of a common landslide mass.
At present, active control engineering measures for landslide disasters include side slope excavation, side slope reinforcement, side slope drainage, side slope environment protection and the like, wherein the side slope reinforcement is a common landslide control measure, and the side slope reinforcement generally utilizes retaining structures such as anti-slide pile wall systems and the like to reinforce a landslide body so as to achieve the purpose of reducing the occurrence probability of landslide. However, in the prevention and control technology for the steep and thick landslide body, the problems of difficult transportation of instrument materials, overlarge construction excavation depth, incapability of accurately avoiding huge hard stones in construction and the like exist in the implementation of common prevention and control engineering schemes.
Taking the most common anti-slide pile in the existing landslide prevention and control structure as an example: the main structure of the anti-slide pile is a pile-shaped structure connecting the sliding surface with the upper stratum and the lower stratum. The main technical idea of the antiskid pile control scheme is that a reinforced concrete pile is buried downwards in a proper position of a landslide body, the lower end of the landslide body reaches a certain depth of a stable stratum at the lower part of a sliding surface, and the landslide body is anchored to prevent the landslide body from sliding downwards, so that the antiskid stability is improved. The application of the anti-slide pile structure in the high mountain canyon region with the steep and thick slide mass has some defects: firstly, the construction problem is that for the huge thick slip mass in the areas, the anti-slip pile needs to be long, the excavated large-scale apparatus and various materials are difficult to transport to the construction part, and huge hard stones possibly exist in the huge thick slip mass to obstruct the hole digging process, so that the construction difficulty of the traditional anti-slip pile is increased; secondly, the safety problem is solved, and the risk of collapse in the excavation process is increased due to the fact that the needed hole depth is large and the disturbance on the soil layer of the landslide body is large; thirdly, the structure is stable, and as the length of the slide-resistant pile is increased, a plurality of sections of steel bars are required to be welded to complete the whole structure, so that the toughness of the welding part of the steel bar structure is reduced, section pouring is also required in the pouring process, the integral performance of the slide-resistant pile is not good in one-step pouring, the phenomenon of internal breakage can occur, and a part of benefit can be lost when the length of the slide-resistant pile is too long.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a monomer, system are built in landslide prevention and cure to the not enough of prior art, and this kind of landslide prevention and cure builds the monomer and can be applicable to the steep huge thick type landslide body landslide prevention and cure engineering condition of height better.
In order to achieve the above object, the utility model firstly provides a monomer is built in landslide prevention and cure, its technical scheme as follows:
a landslide control construction monomer is characterized in that: is arranged in the front 1/3 range of the sliding mass; comprises an inlet adit and a lateral wing adit which are mutually vertical to form a T-shaped plane; the inlet adit opening is arranged on the slope surface and horizontally extends to the sliding surface towards the interior of the slope body; the tail end of the inlet adit is connected with a side wing adit, and miniature steel pipe grouped piles are arranged in the side wing adit; the miniature steel pipe group piles extend upwards into the landslide body and downwards into the landslide body below the sliding surface.
The utility model discloses landslide prevention builds monomer and utilizes upper and lower part to bury the miniature steel pipe crowd's pile of landslide body and glide plane lower stable layer respectively with the landslide body anchor on the glide plane, can provide sufficient cling compound power for the landslide body, and arrange the steel-pipe pile by so on the position that is close the glide plane, make the upper and lower extension length of steel-pipe pile be less than the length of squeezing into the cling compound pile from the top far away, meet the probability and the drilling degree of difficulty reduction of huge hard stone, every reinforcing bar pipe all reaches the welding number of times that length requirement needs and greatly reduces, not only reduced the construction degree of difficulty and construction cost and improved the wholeness ability of steel-pipe pile, thereby make whole structural system reach safety, economy, it is swift, the efficient purpose.
In the landslide prevention and control building unit, the inlet adit extends from the slope surface to the interior of the mountain (in the y-axis negative direction) to a position close to the sliding surface, and the adit height can be as small as possible under the condition of meeting the requirement of equipment entering, so that the disturbance (generally 2 m-4 m) to the soil body can be reduced, and the landslide prevention and control building unit is very favorable for construction under the environmental condition of a high-steep and thick landslide body. The lateral wing adit extends towards two sides in the direction (x-axis direction) vertical to the inlet adit, and aims to ensure that the adit position is close to a sliding surface, reduce the burial depth of the steel pipe pile group and save manpower and material resources. The construction deflection can be reduced, and the construction method is favorable for implementation under the environmental condition of the steep and thick sliding mass.
Under an optimized technical scheme, in the landslide prevention and control building monomer:
the miniature steel pipe group piles are arranged in two rows in a shape of Chinese character 'pin', and steel bar trusses are arranged among the miniature steel pipe group piles.
Further, the steel pipe group piles extend into the sliding surface to be embedded and fixed at the depth h of the lower slope body1The length of the micro steel pipe pile group is 1/2-1/3.
Furthermore, front and rear groups of steel pipe piles are implanted into the concrete pouring square piles of the miniature steel pipe group piles, the rear group of steel pipe piles are close to the slope body, and the front group of steel pipe piles are close to the slope surface.
Furthermore, the steel pipe pile comprises a peripheral geological pipe, the lower part of the geological pipe is processed into a flower pipe, the center of the geological pipe is provided with steel bars bundled in a triangular shape, and mortar is poured between the geological pipe and the steel bars.
Furthermore, a drainage pipeline is arranged in the inlet adit and/or the side wing adit and is communicated with the outside. The structure can solve the problem that a large part of seepage water in the slip mass permeates towards the footrill space with small pressure intensity to become an important factor of instability of the slip mass. The drainage pipeline discharges water, which is not only beneficial to the safety and stability of the footrill, but also beneficial to improving the stability of the whole landslide body.
Furthermore, deformation monitoring equipment is arranged on the miniature steel pipe grouped piles.
The utility model discloses the landslide body is the high steep slope that the landslide body thickness is not less than 50m in the above-mentioned landslide prevention builds monomer.
Use above-mentioned landslide prevention to build the monomer and be the basis, the utility model discloses provide a landslide prevention and cure system of building simultaneously, its technical scheme as follows:
a landslide prevention construction system characterized by: comprises a plurality of the landslide prevention and control construction monomers, and the vertical distance h between the adjacent landslide prevention and control construction monomers2Is composed of
And H is the length of the miniature steel pipe group pile.
Compared with the prior art, the beneficial effects of the utility model are that: (1) the position of a drift system (comprising an inlet drift and a side wing drift) of a landslide prevention and control construction monomer is selected in an easily accessible and stable zone, so that material transportation and worker access are facilitated, the risk of collapse caused by excavation of deep pile holes is reduced, and safety and convenience are improved; the existence of the adit enables the installation of monitoring equipment and drainage equipment, weakens the factors causing instability of the landslide body and is beneficial to maintenance. (2) The miniature steel pipe grouped piles are only required to be embedded into the steel pipe grouped piles up and down near the sliding surface, so that the embedding depth of a pile body is greatly reduced, the probability of encountering huge stones and the drilling difficulty are reduced, and the construction cost is saved; the novel method for embedding and fixing the miniature steel pipe pile groups in the adit can effectively shorten the length of a pile body, so that a pile body anchoring mode can be selected for a high-steep huge-thick sliding slope body which is not suitable for a pile body mode originally; the miniature steel pipe pile group embedded in the stratum under the sliding surface and the sliding surface allows the sliding surface to slightly deform, so that the structural connection between the sliding surface and the miniature steel pipe pile group is stable; two rows of steel pipe grouped piles arranged in the footrill are connected through a truss structure, so that the shearing resistance and the sliding resistance of the slide-resistant pile are greatly improved; compared with a common anti-slide pile construction body, the length of the concrete pouring cubic pile of the miniature steel pipe group pile is shorter, the diameter of the steel pipe pile which is drilled and followed is small, and the disturbance to the soil layer around the slide body is obviously reduced. (3) The landslide prevention and control construction single body can be expanded into a multi-layer system according to the terrain requirements, and a landslide prevention and control scheme is easy to design for the whole landslide body.
Drawings
FIG. 1 is a schematic side sectional view of a landslide body and a landslide prevention and control construction unit.
FIG. 2 is a schematic top sectional view of a landslide body and a landslide prevention and control construction unit.
Fig. 3 is a schematic plan view of a micro steel pipe pile group (a group of steel pipe piles is shown by a dotted line frame).
Fig. 4 is a schematic cross-sectional view of the steel pipe pile.
FIG. 5 is a schematic structural view of a landslide control construction system.
The numerical designations in the drawings are respectively:
1 entrance adit 11 entrance adit opening 12 entrance adit tail end 2 flank adit 3 miniature steel pipe pile group pile 31 concrete pouring vertical square pile 32 steel pipe pile 321 geological pipe 322 steel bar 4 steel bar truss 5 slope 6 sliding surface
Detailed Description
The preferred embodiments of the present invention will be further described with reference to the accompanying drawings.
Example one
The landslide prevention and control construction monomer is constructed on a certain landslide body.
A certain landslide mass is located in the high-intensity region of Sichuan-Tibet. The landslide mass field survey confirms that a landslide accumulation layer mainly comprises a small amount of yellow brown surface layer, gray brown silty clay clamped broken stones and lower broken stones, and a bedrock is metamorphic sandstone. The thickness of the slip mass is not less than 50m, and the slip mass belongs to a high-steep and huge-thick type slip mass. The landslide body is suitable for the landslide prevention and control construction single body.
Fig. 1 is a schematic side sectional view of a landslide body and a landslide prevention and control construction unit, and fig. 2 is a schematic top sectional view of the landslide body and the landslide prevention and control construction unit.
The landslide prevention and control construction unit is arranged in front of a landslide body within the range of 1/3; comprises an inlet adit 1 and a lateral wing adit 2 which are mutually vertical to form a T-shaped plane; the inlet adit 1 is opened on the slope and horizontally extends to the sliding surface towards the interior of the slope body; the inlet adit tail end 12 is connected with a side wing adit 2, and miniature steel pipe grouped piles 3 are arranged in the side wing adit 2; the miniature steel pipe group piles 3 extend upwards into the landslide body and downwards into the landslide body below the sliding surface. The steel pipe pile group extends into the slip surface to form an embedded depth h of the slope1The length H of the miniature steel pipe grouped pile 3 is 1/2-1/3. And drainage pipelines are arranged in the inlet adit 1 and/or the side wing adit 2 and communicated with the outside.
The miniature steel pipe group piles 3 are arranged in two rows in a shape of Chinese character 'pin'. The first row of miniature steel pipe group piles 3 lean against the slope body, the second row of miniature steel pipe group piles 3 lean against the slope surface, and the quantity of the miniature steel pipe group piles 3 at the two ends is reduced by one group compared with the first row. And steel bar trusses 4 are arranged among the miniature steel pipe grouped piles 3. And the miniature steel pipe grouped piles 3 are provided with deformation monitoring equipment. The deformation monitoring equipment comprises displacement, crack, inclination monitoring equipment and the like which are directly arranged on the miniature steel pipe grouped piles 3.
Fig. 3 is a schematic plan view of a micro steel pipe pile group (a group of steel pipe piles is shown by a dotted line frame). The concrete pouring square pile 31 of the miniature steel pipe group pile 3 is internally implanted with a front group of steel pipe piles 32 and a rear group of steel pipe piles 32, the rear group of steel pipe piles 32 are close to a slope body, and the front group of steel pipe piles 32 are close to a slope surface.
Fig. 4 is a schematic cross-sectional view of the steel pipe pile. The steel pipe pile 32 comprises a peripheral geological pipe 321, the lower part of the geological pipe 321 is processed into a floral pipe, the center of the geological pipe 321 is provided with reinforcing steel bars 322 bundled in a triangle shape, and mortar is poured between the geological pipe 321 and the reinforcing steel bars 322.
Example two
And (3) adding a landslide prevention and construction monomer on the basis of the first embodiment to form a landslide prevention and construction system.
FIG. 5 is a schematic structural view of a landslide control construction system. The landslide prevention and construction system comprises a plurality of landslide prevention and construction unitsThe slope prevention and control construction units are arranged along the sliding direction of the landslide body in a height mode, and the vertical distance h between the adjacent upper and lower landslide prevention and control construction units2Is composed of
And H is the length of the micro steel pipe pile group 3.
Claims (9)
1. The landslide prevention and control construction monomer is characterized in that: is arranged in the front 1/3 range of the sliding mass; comprises an inlet adit (1) and a lateral wing adit (2) which are mutually vertical to form a T-shaped plane; the inlet adit (1) is opened on the slope surface and horizontally extends to the sliding surface towards the interior of the slope body; the tail end (12) of the inlet adit is connected with a side wing adit (2), and miniature steel pipe grouped piles (3) are arranged in the side wing adit (2); the miniature steel pipe group piles (3) extend upwards into the landslide body and downwards into the landslide body below the sliding surface.
2. The landslide control building block of claim 1, wherein: the miniature steel pipe group piles (3) are arranged in two rows in a shape of Chinese character 'pin'; steel bar trusses (4) are arranged among the miniature steel pipe grouped piles (3).
3. The landslide control building block of claim 1, wherein: the steel pipe group pile extends into the sliding surface to form an embedding depth h of a slope body1The length H of the miniature steel pipe grouped pile (3) is 1/2-1/3.
4. The landslide control building block of claim 1, wherein: and front and rear groups of steel pipe piles (32) are implanted into the concrete pouring square pile (31) of the miniature steel pipe group pile (3), the rear group of steel pipe piles (32) are close to a slope body, and the front group of steel pipe piles (32) are close to a slope surface.
5. The landslide control building block of claim 4, wherein: the steel pipe pile (32) comprises a peripheral geological pipe (321), the lower part of the geological pipe (321) is processed into a floral pipe, the center of the geological pipe (321) is provided with a steel bar (322) bundled in a triangle shape, and mortar is poured between the geological pipe (321) and the steel bar (322).
6. The landslide control building block of claim 1, wherein: the sliding body is a high-gradient slope with the thickness of the sliding body not less than 50 m.
7. The landslide control building block of claim 1, wherein: and a drainage pipeline is arranged in the inlet adit (1) and/or the side wing adit (2) and is communicated with the outside.
8. The landslide control building block of claim 1, wherein: and deformation monitoring equipment is arranged on the miniature steel pipe group piles (3).
9. Landslide prevention and control construction system, its characterized in that: comprising a plurality of landslide control construction units as claimed in any one of claims 1 to 7, wherein each landslide control construction unit is arranged along the sliding direction of a landslide body in a height manner, and the vertical distance h between the adjacent landslide control construction units2Is composed of
And H is the length of the micro steel pipe grouped piles (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020147002.4U CN212104124U (en) | 2020-01-24 | 2020-01-24 | Landslide prevention and control construction unit and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020147002.4U CN212104124U (en) | 2020-01-24 | 2020-01-24 | Landslide prevention and control construction unit and system |
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| CN212104124U true CN212104124U (en) | 2020-12-08 |
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| CN202020147002.4U Active CN212104124U (en) | 2020-01-24 | 2020-01-24 | Landslide prevention and control construction unit and system |
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