CN113186952A - Anti-skidding and drainage comprehensive treatment method for landslide - Google Patents
Anti-skidding and drainage comprehensive treatment method for landslide Download PDFInfo
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- CN113186952A CN113186952A CN202110493196.2A CN202110493196A CN113186952A CN 113186952 A CN113186952 A CN 113186952A CN 202110493196 A CN202110493196 A CN 202110493196A CN 113186952 A CN113186952 A CN 113186952A
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- landslide
- pile
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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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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/08—Siphons
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
- E02D3/103—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by installing wick drains or sand bags
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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
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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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
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- 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)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses an anti-skidding-drainage comprehensive treatment method for landslide, and belongs to the technical field of slope support. The setting of siphon can effectively balance the water level of groundwater, can effectively solve because the siphon is buckled and the air blocking phenomenon that appears in the department of buckling through the support stake that sets up the slope, ensure the normal work of siphon, friction pile forms a whole with the support stake of slope simultaneously, improve the ability of blockking to the landslide body on the whole, the support stake of slope can transmit some extrusion force to the top of friction pile, improve the stress state of friction pile bottom, improve the bearing capacity and the life of friction pile, the security is greatly improved.
Description
Technical Field
The invention relates to the technical field of slope support, in particular to an anti-skidding-drainage comprehensive treatment method for landslide.
Background
The landslide is a natural phenomenon that soil or rock mass on a slope slides downwards along the slope integrally or dispersedly along a certain weak surface or a soft zone under the action of gravity under the influence of factors such as river erosion, underground water activity, rainwater immersion, earthquake, artificial slope cutting and the like, and main components of the landslide are a landslide body, a landslide bed, a landslide surface and the like.
When landslide treatment is carried out, modes or methods such as anti-slide piles, prestressed anchor rods, slope cutting and load reduction, underground water dredging, surface water diversion and the like are generally adopted, but various methods are basically adopted independently. Adopt the friction pile can effectively improve the ability of blockking to the landslide body, but because the existence of groundwater for the landslide body can increase the trend of gliding downwards, thereby weaken the ability of blockking of friction pile, because the erosion of groundwater can increase the volume of landslide body, make gliding dynamics increase gradually, when the friction pile can not block, can cause more serious landslide phenomenon.
Disclosure of Invention
The invention aims to provide an anti-skidding-drainage comprehensive treatment method for landslide, which aims to solve the problem that the more serious landslide phenomenon is caused because the anti-skidding piles and dredging underground water are not combined for treatment in the conventional landslide treatment scheme.
The technical scheme for solving the technical problems is as follows:
an anti-skid-drainage comprehensive treatment method for landslide comprises the following steps:
s1: prefabricating a support pile, forming a porous section at the bottom end of the support pile, and arranging an installation cavity extending to the porous section at the top end of the support pile;
s2: drilling an inclined hole on the inclined plane of the landslide body until the inclined hole reaches the inside of the landslide bed;
s3: the bottom end of the support pile extends into the inclined hole, so that the porous section is positioned in the landslide bed, and the top end of the support pile is positioned outside the slope bed;
s4: placing a siphon in the installation cavity, extending the siphon into the installation cavity corresponding to the porous section, and fixing the siphon;
s5: and constructing the anti-slide pile at the position of the slide slope body corresponding to the top end of the support pile, and embedding the top of the support pile in the anti-slide pile.
In the treatment method, the inclined support piles are firstly installed, have the functions of pre-supporting the landslide body and protecting the siphon, have the function of dredging underground water after the siphon is installed, control the water level of the underground water below a safe water level and ensure the safety of subsequent construction, and the inclined siphon can effectively solve the air blockage phenomenon at the bent part due to the bending of the siphon and ensure the normal work of the siphon; the anti-slide pile is installed at the back, the anti-slide pile and the inclined supporting pile form a whole, the blocking capacity of the landslide body is improved on the whole, meanwhile, the inclined supporting pile can transmit a part of extrusion force to the top of the anti-slide pile, the stress state of the bottom of the anti-slide pile is improved, the bearing capacity and the service life of the anti-slide pile are improved, and the safety is greatly improved.
Further, in step S1, ordinary concrete and porous concrete are poured into the two ends of the mold, respectively, and the support pile is formed after solidification and curing.
The support pile is prefabricated in advance to form a concrete pile with a porous section, and two different concretes are poured into the mold together to form the integrated support pile, so that the support pile is convenient to install and the overall performance of the support pile is improved on the premise of meeting the requirement.
Further, in step S2, the specific process of drilling the inclined hole includes:
s21: pre-drilling a hole in the slope of the landslide body into the landslide bed;
s22: extending the steel pipe into the pre-drilled hole to form a gap between the steel pipe and the side wall of the pre-drilled hole;
s23: applying reinforced concrete between the steel pipe and the side wall of the pre-drilled hole, after the concrete is initially set, pulling out the steel pipe or not pulling out the steel pipe, and forming a protective cylinder after maintenance;
s24: the diameter of the drill bit is reduced, the drill bit extends into the protective cylinder, and a hole is drilled into the landslide bed along the bottom of the protective cylinder until the drill bit is located at a preset position.
After the pre-drilling hole is drilled, the steel pipe is inserted into the pre-drilling hole, so that the pre-drilling hole can not collapse at the initial stage, and the protective cylinder is formed between the steel pipe and the pre-drilling hole to ensure that the pre-drilling hole can not collapse when the support pile is installed. Meanwhile, drilling is carried out after the protective cylinder is constructed, so that underground water can enter the supporting pile.
Further, in the step S22, the reinforcement cage is placed in the pre-drilled hole, the steel pipe is placed in the reinforcement cage, the positioning block is disposed on the drill rod, and the drill rod is inserted into the steel pipe, so that the operation of inserting the steel pipe into the pre-drilled hole is completed.
The positioning block is arranged on the drill rod and used for positioning the steel pipe, so that the extending direction of the steel pipe is consistent with the extending direction of the pre-drilled hole, and the subsequent drilling operation and the subsequent mounting operation of the support pile are ensured.
Further, in step S5, the slide resistant pile specifically includes:
s51: excavating a foundation pit at a position of the landslide body corresponding to the top end of the support pile until the landslide bed is reached, applying a protective layer on the side wall of the foundation pit, and extending the protective layer to the position above the top end of the support pile;
s52: and applying reinforced concrete into the protective layer, curing to form the anti-slide pile, wrapping the top of the support pile by the anti-slide pile, and extending the siphon pipe out of the anti-slide pile.
The protective layer is arranged on the side wall of the foundation pit, so that the collapse of the foundation pit can be avoided, the construction safety is ensured, the protective layer extends to the upper part of the top end of the support pile, the anti-slide pile and the support pile can be connected into a whole, the stress condition of the anti-slide pile is improved, the bearing capacity of the anti-slide pile is improved, and the service life of the anti-slide pile is prolonged.
Further, in step S51, when the foundation pit is excavated, the protection layer is first excavated downwards to a certain depth, and then the excavation and the construction are repeated while the protection layer above the ground is constructed, thereby completing the excavation of the whole foundation pit.
In step S52, the protective layer below the ground is made of reinforced concrete, and the protective layer above the ground is made of a steel frame structure.
Further, in step S51, the excavation position of the foundation pit ensures that the top end of the support pile is located outside the slide-resistant pile.
When the anti-slide pile is constructed, the top end of the support pile extends out of the outer side of the anti-slide pile, so that the siphon can freely enter and exit the support pile, and the siphon can be replaced.
The invention has the following beneficial effects:
(1) in the treatment method, the inclined support pile can effectively solve the air blockage phenomenon at the bent part due to the bending of the siphon pipe, so that the normal work of the siphon pipe is ensured, meanwhile, the anti-slide pile and the inclined support pile form a whole, the blocking capacity of the landslide body is integrally improved, the inclined support pile can transmit a part of extrusion force to the top of the anti-slide pile, the stress state of the bottom of the anti-slide pile is improved, the bearing capacity and the service life of the anti-slide pile are improved, and the safety is greatly improved.
(2) The steel pipe and the protective cylinder are adopted, so that the safety of subsequent construction can be effectively improved, meanwhile, the steel pipe is guided by the drill bit, the accuracy of the installation position of the steel pipe can be improved, and the subsequent drilling and the installation of the supporting pile can be ensured to be smoothly carried out.
(3) The anti-slide pile and the support pile are overlapped outside, so that the interference between construction can be avoided, the top of the support pile can be wrapped and connected through the anti-slide pile poured in situ, the connection is convenient, and meanwhile, the siphon can be ensured not to be buried in the anti-slide pile, so that the siphon can be replaced.
Drawings
FIG. 1 is a schematic illustration of a pre-drilled hole being drilled;
FIG. 2 is a schematic view of the protective cartridge in operation;
FIG. 3 is a schematic view of the completion of drilling;
FIG. 4 is a schematic view of the completed installation of the support piles and siphon tube;
fig. 5 is a schematic view when the entire construction is completed.
In the figure: 10-a landslide body; 20-landslide bed; 30-pre-drilling; 40-a protective cylinder; 50-supporting piles; 60-siphon tube; 70-slide-resistant pile.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
An anti-skid-drainage comprehensive treatment method for landslide comprises the following steps:
s1: prefabricating a support pile 50, pouring common concrete and porous concrete materials at two ends of a mould respectively, solidifying and curing to form a two-section type support pile 50, wherein the porous concrete materials do not contain fine aggregate, so that a porous structure is formed, a porous section is formed at the bottom end of the support pile 50, and an installation cavity extending to the porous section is arranged at the top end of the support pile 50; the installation cavity is used for placing a siphon 60, and the water level of the underground water is controlled by the position of the siphon 60 after the underground water enters the installation cavity from the porous section.
S2: in the slope of the landslide body 10 pre-drilled into the landslide bed 20 by a drill, the diameter of the hole is larger than the diameter of the support pile 50.
S3: the reinforcement cage is placed into the pre-drilled hole 30, the reinforcement cage is in contact with the hole wall of the pre-drilled hole 30, then the steel pipe matched with the outer diameter of the support pile 50 extends into the reinforcement cage, and a gap is naturally formed between the steel pipe and the side wall of the pre-drilled hole 30 due to blocking of the reinforcement cage.
S4: and replacing the drill bit with the smaller diameter, installing a positioning block on the drill bit, matching the positioning block with the steel pipe, and extending the drill bit with the positioning block into the steel pipe to ensure that the direction of the drill bit is consistent with the extending direction of the pre-drilled hole 30, so that the extending direction of the steel pipe is consistent with the extending direction of the pre-drilled hole 30.
S5: filling concrete between the steel pipe and the side wall of the pre-drilled hole 30, and after the concrete is initially set, pulling out the steel pipe for curing to form a protective cylinder 40; in other embodiments of the present invention, the steel pipe may also be used as a part of the protective cylinder 40 without pulling out the steel pipe, and the inner diameter of the steel pipe is matched with the outer diameter of the support pile 50.
S6: and replacing the drill bit with a smaller diameter (the diameter of the drill bit is matched with the inner diameter of the protective cylinder 40), extending into the protective cylinder 40, and drilling the landslide bed 20 along the bottom of the protective cylinder 40 until reaching a preset position.
S7: the bottom end of the support pile 50 is inserted into the inclined hole with the porous section in the landslide bed 20 and the top end of the support pile 50 outside the sloping bed.
S8: placing a siphon 60 in the installation cavity, extending the siphon 60 into the installation cavity corresponding to the porous section, and fixing the siphon 60; the siphon 60 balances the groundwater level and avoids the groundwater with too high a water level from affecting the subsequent construction.
S9: a foundation pit is excavated at the position, corresponding to the top end of the support pile 50, of the landslide body 10, a certain depth is firstly excavated downwards during excavation, then a concrete protective layer is applied to the side wall of the foundation pit, and excavation and application of the concrete protective layer are repeated until the specified depth is excavated.
S10: a steel frame armor layer is applied over the concrete armor layer, the steel frame armor layer exceeding the top of the support piles 50 in height, and the top of the support piles 50 penetrating the side walls of the steel frame armor layer.
S11: and applying reinforced concrete into the protective layer, curing to form the anti-slide pile 70, wherein the anti-slide pile 70 wraps the top of the support pile 50, and the end part of the support pile 50 extends out of the side wall of the anti-slide pile 70, so that the siphon pipe 60 can be ensured not to penetrate through the anti-slide pile 70, and the siphon pipe 60 can be replaced.
In the treatment method, the inclined support pile 50 can effectively solve the air blockage phenomenon at the bent part caused by the bending of the siphon pipe 60, so that the normal work of the siphon pipe 60 is ensured, meanwhile, the slide-resistant pile 70 and the inclined support pile 50 form a whole, the blocking capacity of the slide body 10 is integrally improved, the inclined support pile 50 can transmit a part of extrusion force to the top of the slide-resistant pile 70, the stress state of the bottom of the slide-resistant pile 70 is improved, the bearing capacity and the service life of the slide-resistant pile 70 are improved, and the safety is greatly improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The anti-skidding-drainage comprehensive treatment method for landslide is characterized by comprising the following steps of:
s1: prefabricating a support pile, forming a porous section at the bottom end of the support pile, and arranging an installation cavity extending to the porous section at the top end of the support pile;
s2: drilling an inclined hole on the inclined plane of the landslide body until the inclined hole reaches the inside of the landslide bed;
s3: the bottom end of the support pile extends into the inclined hole, so that the porous section is positioned in the landslide bed, and the top end of the support pile is positioned outside the slope bed;
s4: placing a siphon in the installation cavity, extending the siphon into the installation cavity corresponding to the porous section, and fixing the siphon;
s5: and constructing the anti-slide pile at the position of the slide slope body corresponding to the top end of the support pile, and embedding the top of the support pile in the anti-slide pile.
2. The method for comprehensive treatment of landslide of claim 1, wherein in step S1, general concrete and porous concrete are poured into the both ends of the mold, respectively, and after solidification and curing, a support pile is formed.
3. The comprehensive treatment method for anti-skid and drainage of landslide of claim 1, wherein in step S2, the specific process of drilling the inclined hole is as follows:
s21: pre-drilling a hole in the slope of the landslide body into the landslide bed;
s22: extending the steel pipe into the pre-drilled hole to form a gap between the steel pipe and the side wall of the pre-drilled hole;
s23: applying reinforced concrete between the steel pipe and the side wall of the pre-drilled hole, after the concrete is initially set, pulling out the steel pipe or not pulling out the steel pipe, and forming a protective cylinder after maintenance;
s24: the diameter of the drill bit is reduced, the drill bit extends into the protective cylinder, and a hole is drilled into the landslide bed along the bottom of the protective cylinder until the drill bit is located at a preset position.
4. The comprehensive landslide treatment method according to claim 3 wherein in step S22, the reinforcement cage is first placed in the pre-drilled hole, the steel pipe is then placed in the reinforcement cage, the positioning block is placed on the drill rod, and the drill rod is inserted into the steel pipe to complete the insertion of the steel pipe into the pre-drilled hole.
5. The comprehensive treatment method for anti-skid and drainage of landslide of any one of claims 1 to 4, wherein in step S5, the concrete implementation steps of the anti-skid piles are as follows:
s51: excavating a foundation pit at a position of the landslide body corresponding to the top end of the support pile until the landslide bed is reached, applying a protective layer on the side wall of the foundation pit, and extending the protective layer to the position above the top end of the support pile;
s52: and applying reinforced concrete into the protective layer, curing to form the anti-slide pile, wrapping the top of the support pile by the anti-slide pile, and extending the siphon pipe out of the anti-slide pile.
6. The method of claim 5, wherein in step S51, when the excavation is performed, the excavation is performed by excavating a foundation pit downward to a certain depth, then applying the protective layer, and the excavation and the applying are repeated while applying the protective layer above the ground surface to complete the excavation of the whole foundation pit.
7. The method for comprehensive treatment of landslide according to claim 6, wherein in step S52, the subsurface protective layer is made of reinforced concrete and the subsurface protective layer is made of steel frame structure.
8. The comprehensive landslide control method of claim 5 wherein in step S51, the excavation of the excavation site ensures that the top end of the support pile is located outside the slide-resistant pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110493196.2A CN113186952A (en) | 2021-05-07 | 2021-05-07 | Anti-skidding and drainage comprehensive treatment method for landslide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110493196.2A CN113186952A (en) | 2021-05-07 | 2021-05-07 | Anti-skidding and drainage comprehensive treatment method for landslide |
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| CN202110493196.2A Pending CN113186952A (en) | 2021-05-07 | 2021-05-07 | Anti-skidding and drainage comprehensive treatment method for landslide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240082A (en) * | 2022-09-26 | 2022-10-25 | 四川省冶金地质勘查局水文工程大队 | Geological disaster monitoring and early warning method based on deformation monitoring and deep learning |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597898A (en) * | 2008-06-05 | 2009-12-09 | 梁钰泽 | Rigid drainage pile and job practices |
| CN111794250A (en) * | 2020-06-29 | 2020-10-20 | 南京华宇建设股份有限公司 | Siphon drainage slope protection structure and construction method thereof |
-
2021
- 2021-05-07 CN CN202110493196.2A patent/CN113186952A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597898A (en) * | 2008-06-05 | 2009-12-09 | 梁钰泽 | Rigid drainage pile and job practices |
| CN111794250A (en) * | 2020-06-29 | 2020-10-20 | 南京华宇建设股份有限公司 | Siphon drainage slope protection structure and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王晓谋: "《基础工程（第三版）》", 31 August 2003, 人民交通出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240082A (en) * | 2022-09-26 | 2022-10-25 | 四川省冶金地质勘查局水文工程大队 | Geological disaster monitoring and early warning method based on deformation monitoring and deep learning |
| CN115240082B (en) * | 2022-09-26 | 2022-12-13 | 四川省冶金地质勘查局水文工程大队 | Geological disaster monitoring and early warning method based on deformation monitoring and deep learning |
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