CN114892712B - Construction method of micro-disturbance assembled soil retaining structure - Google Patents
Construction method of micro-disturbance assembled soil retaining structure Download PDFInfo
- Publication number
- CN114892712B CN114892712B CN202210711371.5A CN202210711371A CN114892712B CN 114892712 B CN114892712 B CN 114892712B CN 202210711371 A CN202210711371 A CN 202210711371A CN 114892712 B CN114892712 B CN 114892712B
- Authority
- CN
- China
- Prior art keywords
- double
- row piles
- baffle
- soil retaining
- construction method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 44
- 239000002689 soil Substances 0.000 title claims abstract description 32
- 230000003068 static effect Effects 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- 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
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention relates to a construction method of a perturbation assembly type soil retaining structure, double-row piles are constructed in a construction site along the extending direction of a soil retaining surface, pile bodies of the double-row piles are arranged at intervals along the vertical direction of the soil retaining surface, and vertical grooves are reserved between the double-row piles; constructing a rigid frame beam at the top of the double-row piles, wherein the rigid frame beam connects the double-row piles to form a whole; a jack is arranged at the bottom of the rigid frame beam, and the jack is inverted and corresponds to the vertical groove; and placing a baffle in the vertical groove, and embedding the baffle into the soil layer through static pressure by the jack. The invention has the advantages that: the double-row piles are combined with the prefabricated baffle plates, so that the double-row piles are high in rigidity and deformation resistance, the double-row piles are used as the support of the prefabricated baffle plates, the force transmission path of the structural system is clear, and the whole structure has good economy; the construction site mainly carries out pile foundation construction and baffle static pressure operation, does not involve a large amount of earth excavation backfill, has small influence on environment and has the characteristic of micro disturbance.
Description
Technical Field
The invention relates to the technical field of retaining structures, in particular to a construction method of a micro-disturbance assembly type retaining structure.
Background
The soil retaining structure is one kind of structure for supporting, reinforcing and preventing slump and sliding to maintain its stability. With urban development and construction, the number of supporting structures closely abutting on the existing building or land shortage is increased, and the applicability of the traditional cantilever or buttress retaining wall is limited due to the large construction temporary occupied area, large excavation backfill engineering quantity, low effective supporting height and the like; the retaining height of the pile plate retaining wall is improved, but the applicability of the pile foundation construction is greatly limited due to the problems of higher requirements on construction tools and construction space, long construction period, high construction cost and the like.
In the prior art, there is a frame type double row sheet pile soil blocking structure including a plurality of rows of sheet pile structures and tie beams, wherein both ends of the tie beams are respectively fixed with the row sheet pile structures and the spacing sheet pile structures, so that the row sheet pile structures and the spacing sheet pile structures can mutually support the plurality of rows of sheet pile structures including the row sheet pile structures and the first crown beams alternately arranged along a width direction of a river bank, wherein a plurality of row sheet piles are continuously arranged along a length direction of the river bank, the first crown beams fix pile heads of all row sheet piles including the spacing sheet piles and the second crown beams, wherein a plurality of spacing sheet piles are arranged at intervals along the length direction of the river bank, and the second crown beams fix pile heads of all spacing sheet piles.
However, the structure is difficult to implement under the condition of limited construction space, and meanwhile, large-scale soil excavation and filling are needed, so that the environment influence is large, and the structure is mainly a cast-in-situ structure and has long construction period.
Disclosure of Invention
According to the defects of the prior art, the invention provides a construction method of a micro-disturbance assembled retaining structure, and a baffle is constructed between double piles in a static pressure mode, so that the construction of the retaining structure is realized, disturbance is reduced, and construction space is saved.
The invention is realized by the following technical scheme:
a construction method of a perturbation assembly type soil retaining structure is characterized by comprising the following steps of: the method comprises the following steps:
Constructing double-row piles in a construction site along the extending direction of a soil retaining surface, wherein pile bodies of the double-row piles are arranged at intervals along the vertical direction of the soil retaining surface, so that vertical grooves are reserved between the double-row piles;
constructing a rigid frame beam at the top of the double-row piles, wherein the rigid frame beam connects the double-row piles to form a whole;
a jack is arranged at the bottom of the rigid frame beam, and is inverted and corresponds to the vertical groove
And placing a baffle in the vertical groove, and embedding the baffle into the soil layer through static pressure by the jack.
Two or more groups of double-row piles are constructed in the extending direction of the plate body of the baffle plate, the double-row piles of each group are arranged at intervals, and the baffle plate is limited between the double-row piles of each group.
And a plurality of baffles are arranged in the vertical groove in a static pressure mode one by one through the jack, and the retaining surfaces are supported and blocked by the baffle combination.
A wedge angle or a conical tip is arranged at the bottom of the first baffle plate of the static pressure.
The bottom of the baffle plate positioned at the bottom is welded with a steel cutting edge.
And constructing the baffles along the extending direction of the soil retaining surface, wherein adjacent baffles are continuous, and each baffle is arranged between the corresponding double-row piles.
The double-row piles and the rigid frame beams are cast-in-situ reinforced concrete structures, and the baffle plates are prefabricated reinforced concrete structures.
And a through water drain hole is reserved on the baffle plate.
The invention has the advantages that:
1) The double-row piles are combined with the prefabricated baffle plates, so that the double-row piles are high in rigidity and deformation resistance, the double-row piles are used as the support of the prefabricated baffle plates, the force transmission path of the structural system is clear, and the whole structure has good economy;
2) The double-row piles can be arranged outside a construction space limited area, and a static pressure device is adopted to construct a baffle in the space limited area, so that the double-row piles have applicability in various complex environments such as under-bridge and the like;
3) The prefabricated parts can be partially used, the mode of factory production and field installation construction can be realized, the rapid and large-scale construction is realized, and the construction period and the construction cost are saved;
4) The construction site mainly carries out pile foundation construction and baffle static pressure operation, does not involve a large amount of earth excavation backfill, has small influence on environment and has the characteristic of micro disturbance.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention;
FIG. 2 is a top plan view of the structure of the present invention;
FIG. 3 is an isometric view of the present invention;
fig. 4 is a schematic structural view of a bottom baffle plate according to the present invention.
Detailed Description
The features of the invention and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1-4, the labels 1-6 are shown as: the steel frame comprises a rigid frame beam 1, a jack 2, double-row piles 3, a baffle 4, a baffle 5 and steel cutting edges 6.
Examples: as shown in fig. 1 to 4, the slightly disturbed assembled soil retaining method of this embodiment is constructed to form a soil retaining structure of a rigid frame beam 1, double row piles 3 and a baffle 4 (baffle 5). Wherein, the double row pile 3 has two sets of along retaining direction interval arrangement, and the reservation clearance is installed as the later stage baffle between every row pile body and is reserved vertical groove. The tops of the double row piles 3 are fixedly connected through the rigid frame beams 1 to form a stable frame.
A baffle plate which is transversely arranged is arranged in a reserved vertical groove of the double-row pile 3, wherein the baffle plate 5 is a first baffle plate at the bottom, and a wedge angle is arranged below the baffle plate so as to facilitate static pressure to enter the soil, and different wedge directions can be used, and cone tips can also be used; if the stratum is harder, the steel blade feet 6 can be welded at the bottom of the wedge-shaped angle, and the auxiliary baffle plate can be smoothly pressed into the soil by static pressure, as shown in figure 4. Each of the remaining baffles located above baffle 5 is a generally rectangular baffle 4. The baffle 5 and a plurality of baffles 4 are sequentially embedded into the soil in a downward static pressure mode to form a complete retaining plate taking double-row piles 3 at two ends as supports, and the retaining function of the retaining plate is achieved.
In the present embodiment, the static pressure construction of the baffle 4 and the baffle 5 is achieved by providing the jack 2 at the bottom of the rigid frame beam 1. Specifically, the jack 2 is inverted right above the baffle installation reserve vertical groove, which can use the double row piles 3 and the rigid frame beams 1 as reaction devices to static the baffle 4 (baffle 5) downward.
The construction method of the embodiment comprises the following construction steps:
1) And (3) leveling the field, defining the positioning of double piles 3, reserving the distance of vertical grooves among piles, and constructing pile foundations.
2) Erecting a template, and constructing a pile top rigid frame beam 1 to enable the tops of the double-row piles 3 to be fixedly connected to form an integral frame. The rigid frame girder 1 is used for connecting the double-row piles 3, so that the double-row piles 3 are connected to form an integral frame with higher strength.
3) And (3) prefabricating baffle plates in factories and maintaining the baffle plates to the design strength while constructing the site pile foundation and the rigid frame beam.
4) An inverted jack is arranged in a vertical groove between the double-row piles 3 and at the bottom of the rigid frame beam 1, a baffle plate 5 provided with a steel blade foot 6 is firstly arranged in the vertical groove, and the baffle plate is pressed down into a soil layer by the force applied by the jack 2. In the static pressure process, the jacking travel of the jacks 2 on two sides is controlled in the same way, so that the baffle keeps the horizontal static pressure, and meanwhile, after static pressure construction of one baffle is completed, the top surface of the baffle is cleaned, and residue soil is prevented from remaining on the contact surface between the baffles.
5) After the jack 2 returns, a baffle 4 is placed above the baffle 5, the jack 2 directly presses the baffle 4 downwards, so that the baffle 4 and the baffle 5 continuously enter the soil layer downwards;
6) After the jack 2 returns, another baffle plate 4 is placed on the baffle plate 4, and the steps are repeated until the baffle plate 4 is fully distributed with the whole vertical groove from bottom to top, so that a complete and continuous soil retaining plate with two ends supported on the double-row piles 3 is formed.
In the construction stage, the double-row piles 3 and the rigid frame beams 1 bear the upward pulling force under the action of the jacks 2, the upward pulling force can be borne by the double-row piles 3, the pulling-resistant bearing capacity of the double-row piles 3 is required to be checked during structural design, the requirements are met, and the stability of the whole structure of the soil retaining structure is ensured.
The embodiment is implemented in specific manner: the rigid frame beam 1 and the double-row piles 3 are cast-in-situ reinforced concrete structures, and the baffle plates are prefabricated reinforced concrete structures, so that the construction efficiency is effectively improved.
As shown in fig. 2 and 3, in this embodiment, two sets of double piles 3 are disposed along the extending direction of the plate body (extending direction of the retaining surface) of the baffle, but in practical construction, in order to further improve the performance of the retaining structure, more than two sets of double piles 3 may be disposed, and each double pile 3 is uniformly spaced, so that the baffle may be limited between each set of double piles, thereby improving the retaining effect.
Similarly, in this embodiment, a jack 2 is disposed below the rigid frame beam 1, but when the thickness of the plate body of the baffle is large, two jacks 2 spaced along the thickness direction of the plate body of the baffle may be used to perform static pressure on the baffle, so as to ensure the embedding effect of the baffle.
Fig. 3 shows a retaining structure formed by a set of double piles 3 and retaining plates, in which the retaining plates are arranged along the extending direction of the retaining surface in actual construction, and each retaining plate is formed continuously to continuously support the retaining surface.
And a through water drain hole is reserved on the baffle plate, so that the later-stage water drainage requirement is met.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the invention as defined in the appended claims, and thus are not repeated herein.
Claims (4)
1. A construction method of a perturbation assembly type soil retaining structure is characterized by comprising the following steps of: the method comprises the following steps:
Constructing double-row piles in a construction site along the extending direction of a soil retaining surface, wherein pile bodies of the double-row piles are arranged at intervals along the vertical direction of the soil retaining surface, so that vertical grooves are reserved between the double-row piles;
constructing a rigid frame beam at the top of the double-row piles, wherein the rigid frame beam connects the double-row piles to form a whole;
A jack is arranged at the bottom of the rigid frame beam, and the jack is inverted and corresponds to the vertical groove;
Placing a baffle in the vertical groove, and embedding the baffle into a soil layer through static pressure by the jack;
Constructing two or more groups of double-row piles in the extending direction of the plate body of the baffle plate, wherein the double-row piles are arranged at intervals, and the baffle plate is limited between the double-row piles;
a plurality of baffles are pressed in the vertical groove one by one through the jack, and the retaining surfaces are supported and blocked by the baffle combination;
A wedge angle or a conical tip is arranged at the bottom of the first baffle plate of the static pressure;
The bottom of the baffle plate positioned at the bottom is welded with a steel cutting edge.
2. The construction method of the perturbation assembly type soil retaining structure according to claim 1, wherein the construction method comprises the following steps: and constructing the baffles along the extending direction of the soil retaining surface, wherein adjacent baffles are continuous, and each baffle is arranged between the corresponding double-row piles.
3. The construction method of the perturbation assembly type soil retaining structure according to claim 1, wherein the construction method comprises the following steps: the double-row piles and the rigid frame beams are cast-in-situ reinforced concrete structures, and the baffle plates are prefabricated reinforced concrete structures.
4. The construction method of the perturbation assembly type soil retaining structure according to claim 1, wherein the construction method comprises the following steps: and a through water drain hole is reserved on the baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210711371.5A CN114892712B (en) | 2022-06-22 | 2022-06-22 | Construction method of micro-disturbance assembled soil retaining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210711371.5A CN114892712B (en) | 2022-06-22 | 2022-06-22 | Construction method of micro-disturbance assembled soil retaining structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114892712A CN114892712A (en) | 2022-08-12 |
| CN114892712B true CN114892712B (en) | 2024-06-28 |
Family
ID=82728109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210711371.5A Active CN114892712B (en) | 2022-06-22 | 2022-06-22 | Construction method of micro-disturbance assembled soil retaining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114892712B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395358A (en) * | 2020-04-24 | 2020-07-10 | 中铁二院成都勘察设计研究院有限责任公司 | Novel support system for double-row pile vertical-blocking cross anchor and construction method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200369479Y1 (en) * | 2004-05-25 | 2004-12-04 | 김창근 | The land-side protection wall panel |
| KR100776373B1 (en) * | 2004-10-13 | 2007-11-16 | 코오롱건설주식회사 | Soil retaining method using two rows pile |
| KR100964993B1 (en) * | 2008-02-04 | 2010-06-21 | 코오롱건설주식회사 | Soil retaining method for two rows pile |
| CN202689008U (en) * | 2012-06-11 | 2013-01-23 | 东南大学 | Supporting structure for double-row prefabricated high-strength concrete thin-walled steel pipe pile foundation pit |
| CN203782682U (en) * | 2014-01-23 | 2014-08-20 | 深圳市工勘岩土工程有限公司 | Guide slot assembly type pile-intermediate plate device |
| CN103758134B (en) * | 2014-01-24 | 2015-09-30 | 中国建筑股份有限公司 | A kind of construction method combining Double-row Piles Support system |
| CN208934002U (en) * | 2018-07-19 | 2019-06-04 | 长江勘测规划设计研究有限责任公司 | A kind of barrier wall structure |
| CN110468873B (en) * | 2019-09-16 | 2020-06-23 | 南京吉欧地下空间科技有限公司 | Underpinning structure for abutment pile foundation in small space and using method |
-
2022
- 2022-06-22 CN CN202210711371.5A patent/CN114892712B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395358A (en) * | 2020-04-24 | 2020-07-10 | 中铁二院成都勘察设计研究院有限责任公司 | Novel support system for double-row pile vertical-blocking cross anchor and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114892712A (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2009516109A (en) | Temporary earth retaining device | |
| CN106639346A (en) | Construction method for existing building downward storey-adding by using inclined strut underpinning structure | |
| CN110306589B (en) | Method for forming assembled reinforced earth retaining wall | |
| CN114134931B (en) | Reverse construction method for developing basement structure of existing building | |
| CN114892712B (en) | Construction method of micro-disturbance assembled soil retaining structure | |
| CN112482437B (en) | Integrated vertical supporting system for reverse construction pile and construction method thereof | |
| CN218952238U (en) | Micro-disturbance assembled soil retaining structure | |
| CN211333866U (en) | High-speed railway beam-making pedestal suitable for unfavorable geology | |
| CN217974413U (en) | Deep and shallow foundation pit supporting construction structure | |
| CN110607800A (en) | Turnover type steel open caisson supporting device and construction method thereof | |
| CN113356290B (en) | Longitudinal wall beam type pile foundation underpinning construction method for underground passage construction | |
| CN213741134U (en) | Pile foundation joist counterfort retaining wall | |
| CN211849468U (en) | Ultra-large pile spacing deep foundation pit supporting system under sand bed condition | |
| CN213952237U (en) | Take a four corners supporting beam's underground structure | |
| CN212714329U (en) | Joint bar top-connected type composite foundation structure | |
| KR20020076531A (en) | Afforestation Retaining-Wall laying Concrete-block | |
| CN216765943U (en) | Overwater drilling platform | |
| CN112609657B (en) | Recyclable platform construction method at river flood discharge port | |
| CN219343769U (en) | Steel column bottom cross-shaped steel integrated anti-impact column foot joint | |
| CN115233689A (en) | Combined type enclosure structure for soft soil foundation pit and construction method thereof | |
| CN215518203U (en) | Assembled lattice beam pile-supported embankment | |
| CN215888318U (en) | Novel pile-supporting type frame soil retaining structure | |
| CN212772376U (en) | Double steel sheet pile construction diaphragm wall component | |
| CN215105443U (en) | Safe and efficient pipe-jacking working pit supporting structure | |
| CN217419658U (en) | Underground vehicle base foundation pit enclosure structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |