CN111827350B - Construction method for prefabricated miniature pipe gallery square filling section - Google Patents
Construction method for prefabricated miniature pipe gallery square filling section Download PDFInfo
- Publication number
- CN111827350B CN111827350B CN202010722017.3A CN202010722017A CN111827350B CN 111827350 B CN111827350 B CN 111827350B CN 202010722017 A CN202010722017 A CN 202010722017A CN 111827350 B CN111827350 B CN 111827350B
- Authority
- CN
- China
- Prior art keywords
- pipe gallery
- filling
- construction
- retaining wall
- side slope
- 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
Images
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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (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)
- Road Paving Structures (AREA)
Abstract
The invention provides a construction method for a prefabricated miniature pipe gallery square filling section, which comprises the following steps: digging a construction ditch on the sidewalk, wherein one side wall of the construction ditch is positioned on a motor vehicle lane; pouring a concrete retaining wall on one side of the construction ditch close to the side slope, pouring a plurality of concrete pressing strips on the side slope, and fixedly connecting the upper ends of the pressing strips with the retaining wall; hoisting the pipe gallery into a construction ditch, reserving a first filling space between one side of the pipe gallery and the retaining wall, and reserving a second filling space on the other side of the pipe gallery; filling a first filling space and a second filling space, and arranging a plurality of layers of geogrids in the second filling space during filling; and paving a sidewalk on the top of the pipe gallery. The concrete retaining wall can play the effect of supporting, damping, weakening effort, and when filling the second filling space, the filling pressure is born by the concrete retaining wall to prevent the side slope from collapsing due to the larger effort. Through setting up the pressure lath, the pressure lath presses on the slope surface, can play the effect of reinforcing the side slope, further prevents that the side slope from collapsing, improves construction safety.
Description
Technical Field
The invention relates to the technical field of pipe gallery construction, in particular to a construction method for a prefabricated miniature pipe gallery square filling section.
Background
The miniature pipe gallery in city often sets up under the pavement, because the urban land is more rare, the pavement that can set up the pipe gallery is less, appears often as the pipe gallery setting mode shown in fig. 1, and one side of pavement 1 is motor vehicle lane 3, and the opposite side is the side slope 4 of slope then, and pipe gallery 2 sets up under pavement 1. During the construction, need dig the construction ditch on pavement 1 earlier, the width of construction ditch is greater than the width of piping lane 2 to in put into the construction ditch with piping lane 2, then set up piping lane 2, at last with the space filling tamping of piping lane 2 between the construction ditch lateral wall, at 2 top floorings, cement slab etc. of piping lane simultaneously. Because the width of the sidewalk 1 is limited, the distance between the construction ditch and the side slope 4 is very short, the stability of the side slope 4 is poor, and the side slope may collapse in the filling and tamping process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction method for a prefabricated miniature pipe gallery square filling section, which can prevent a side slope from collapsing in the construction process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the construction method of the prefabricated miniature pipe gallery square filling section is characterized by comprising the following steps:
A. digging a construction ditch on the sidewalk, wherein one side wall of the construction ditch is positioned on a motor vehicle lane;
B. pouring a concrete retaining wall on one side of the construction ditch close to the side slope, pouring a plurality of concrete pressing strips on the side slope, and fixedly connecting the upper ends of the pressing strips with the retaining wall;
C. hoisting the pipe gallery into a construction ditch, reserving a first filling space between one side of the pipe gallery and the retaining wall, and reserving a second filling space on the other side of the pipe gallery;
D. filling a first filling space and a second filling space, and arranging a plurality of layers of geogrids in the second filling space during filling;
E. and paving a sidewalk on the top of the pipe gallery.
And step B, digging a plurality of pouring grooves on a sidewalk between the construction ditch and the side slope, then building a retaining wall template in the construction ditch, building a batten template on the side slope, and finally pouring concrete in the retaining wall template, the pouring grooves and the batten template to obtain the integrated batten, connecting section and retaining wall.
And further, in the step B, a plurality of T-shaped reinforcing piles are drilled at the bottom of the construction ditch before the retaining wall is poured, and after the retaining wall is poured, the upper ends of the reinforcing piles are positioned in the retaining wall.
Furthermore, two positioning plates are arranged in the pressing plate strips, the positioning plates of two adjacent pressing plate strips are connected through a steel wire mesh, and the steel wire mesh is laid on the surface of the side slope.
Further, the second filling space comprises a tamping section adjacent to the pipe gallery and a common filling section far away from the pipe gallery, when the tamping section is filled, the compaction rate of filling soil is greater than 90%, the bearing capacity of the filling soil is greater than 100kPa, when the first filling space is filled, the compaction rate of the filling soil is greater than 90%, and the bearing capacity of the filling soil is greater than 100 kPa.
Further, the width of the tamper segment is greater than or equal to 1.5 m.
Further, the first filling space and the tamping section are filled by machinery.
Further, in the step C, the bottom of the construction ditch is tamped, the compaction rate is greater than or equal to 95%, and the bearing capacity of the bottom of the construction ditch is greater than or equal to 150 kPa.
Further, the bottom of pipe gallery is provided with a plurality of sawtooth bosss.
Further, ecological bags are laid on the steel wire mesh.
The invention has the beneficial effects that: the concrete retaining wall can play the effect of supporting, damping, weakening effort, and when filling the second filling space, filling pressure is born by the concrete retaining wall, and only a small part of effort is transmitted to the side slope to prevent the side slope from collapsing due to larger effort. Through setting up many pressure laths, the pressure lath is pressed on the side slope surface, and the pressure lath links to each other with the barricade, can play the effect of consolidating the side slope, further prevents that the side slope from collapsing, improves construction safety.
Drawings
FIG. 1 is a schematic view of an existing piping lane arrangement;
FIG. 2 is a schematic view of the arrangement of the tube lane of the present invention;
FIG. 3 is a schematic cross-sectional view A-A of FIG. 2;
reference numerals: 1-sidewalk; 2-pipe gallery; 3-vehicle lane; 4, slope cutting; 6, retaining wall; 7-first fill space; 8-a second fill space; 9-geogrid; 10-a connecting section; 11-reinforcing piles; 12-a positioning plate; 13-a saw-tooth boss; 14-ecological bag; 15-pressing the lath; 16-steel wire mesh.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 2 and 3, the construction method of the prefabricated micro pipe gallery square filling segment of the invention comprises the following steps:
A. a construction trench is dug in the sidewalk 1, and one side wall of the construction trench is positioned on a motor vehicle lane 3. When the construction trench is dug, a sufficient distance between the construction trench and the side slope 4 should be ensured, but since the width of the construction trench must meet the construction requirement, one side wall of the construction trench is positioned in the motor vehicle lane 3, that is, part of the construction trench is positioned in the motor vehicle lane 3.
B. Concrete retaining wall 6 is poured on one side of the construction ditch close to side slope 4, a plurality of concrete pressing plate strips 15 are poured on the side slope 4, and the upper ends of the pressing plate strips 15 are fixedly connected with the retaining wall 6. The side wall of the construction ditch is a soil side wall which is soft and low in strength, particularly one side close to the side slope 4 is close to the side slope 4, the thickness of the soil wall is low, the side close to the side slope 4 is subjected to large pressure in subsequent filling, and the side close to the side slope 4 is easy to collapse after being impacted, so that the side close to the side slope 4 of the construction ditch is cast with the retaining wall 6 made of concrete, impact force is born by the retaining wall 6 in subsequent filling construction, the strength of the concrete is far higher than that of the soil wall, the concrete can bear large impact force, acting force transmitted to the side slope 4 through the retaining wall 6 is small, and the side slope 4 can be prevented from collapsing.
In addition, the surface layer of the side slope 4 is generally a soft soil layer, the soil is not tightly combined, and landslide is easy to occur, so that a plurality of evenly distributed compression bar strips 15 are poured on the surface layer of the side slope 4 to play a role in fastening the surface layer of the side slope 4, and the compression bar strips 15 and the retaining wall 6 are integrated into a whole and are firmer.
The concrete construction mode of the batten 15 and the retaining wall 6 is as follows: digging a plurality of pouring grooves on a sidewalk between a construction ditch and a side slope 4, then building a retaining wall template in the construction ditch, building a pressing plate strip template on the side slope 4, and finally pouring concrete in the retaining wall template, the pouring grooves and the pressing plate strip template to obtain the pressing plate strip 15, the connecting section 10 and the retaining wall 6 which are connected into a whole.
In order to improve the impact resistance of the retaining wall 6 and further reduce the impact force transmitted to the side slope 4 during subsequent filling, a plurality of T-shaped reinforcing piles 11 are drilled at the bottom of the construction ditch before the retaining wall 6 is poured, and after the retaining wall 6 is poured, the upper ends of the reinforcing piles 11 are positioned inside the retaining wall 6. The reinforcing pile 11 is made of steel or iron materials, and the bottom of the reinforcing pile is conical so as to be conveniently and quickly driven into the bottom of the construction ditch.
In order to further protect the surface layer of the side slope 4, two positioning plates 12 are arranged in the battens 15, the positioning plates 12 of two adjacent battens 15 are connected through a steel wire mesh 16, and the steel wire mesh 16 is laid on the surface layer of the side slope 4. As shown in fig. 3, the positioning plate 12 is T-shaped, the positioning plate 12 is embedded in the battens 15 when the battens 15 are poured, and then the steel wire mesh 16 is fixed in the positioning plate 12 by using screws and the like. The steel wire mesh 16 can fix the surface layer of the side slope 4 to prevent the side slope 4 from sliding.
In addition, the ecological bags 14 can be laid on the steel wire mesh 16, the ecological bags 14 are moisture-resistant and durable, soil and the like generated by digging construction ditches is filled in the ecological bags 14, and the ecological bags 14 are laid on the steel wire mesh 16, so that the side slope 4 can be further protected. After the installation of the pipe gallery 2 is completed, the ecological bag 14 can be transferred to other construction projects.
C. The bottom of the construction ditch is tamped, the compaction rate is greater than or equal to 95%, and the bearing capacity of the bottom of the ditch is greater than or equal to 150kPa, so that the bottom of the construction ditch is flat and compact, the bottom of the construction ditch is prevented from sinking after the pipe gallery 2 is hoisted and enters the construction ditch, and the stability of the pipe gallery 2 is ensured.
The bottom surface of the conventional pipe gallery 2 is a plane, the bottom of the pipe gallery 2 is provided with a plurality of sawtooth bosses 13, and the sawtooth bosses 13 can play a certain positioning role, so that the pipe gallery 2 is prevented from moving horizontally, and the stability of the pipe gallery 2 is further ensured.
Then utilize lifting device to get into the construction ditch with 2 hoists of piping lane, leave first filling space 7 between 2 one sides of piping lane and the barricade 6, the second filling space 8 is left to 2 opposite sides of piping lane, wherein, second filling space 8 includes the section of ramming adjacent with 2 of piping lane and keeps away from 2 of piping lane's ordinary filling section.
D. The first filling space 7 and the second filling space 8 are filled. In order to make piping lane 2 keep fixed, prevent the positional change of piping lane 2, the filling soil of 2 both sides of piping lane must be tamped, specifically, when filling the section of tamping, the compaction rate of filling soil is greater than 90%, and the bearing capacity of filling soil is greater than 100kPa, and the width of the section of tamping is greater than or equal to 1.5 m. When the first filling space 7 is filled, the compaction rate of the filling soil is more than 90%, and the bearing capacity of the filling soil is more than 100 kPa. After the filling soil is tamped, the pipe gallery 2 can be stably positioned. In addition, when filling, a plurality of layers of geogrids 9 are arranged in the second filling space 8, the length of each geogrid 9 is about 4m, the vertical distance is about 0.3m, the ultimate tensile strength is not less than 40kN/m in the transverse direction and not less than 25kN/m in the longitudinal direction, and therefore sufficient supporting capacity is guaranteed. Geogrid 9 is anchored to pipe gallery 2 such that geogrid 9 and pipe gallery 2 are integral.
First filling space 7 and the section of tamping are filled by machinery, and are efficient, and the degree of tamping satisfies the requirement easily, and ordinary filling section can be filled by the manual work.
E. The walkway 1 is laid on top of the pipe gallery 2.
The invention solves the problems that the side slope 4 is easy to collapse and slide in the construction process, is beneficial to improving the construction safety and reduces the influence of the construction on peripheral places.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The construction method of the prefabricated miniature pipe gallery square filling section is characterized in that a pipe gallery (2) is arranged below a sidewalk (1), one side of the sidewalk (1) is a motor vehicle lane (3), and the other side of the sidewalk is an inclined side slope (4);
the method comprises the following steps:
A. digging a construction ditch on the sidewalk (1), wherein one side wall of the construction ditch is positioned on a motor vehicle lane (3);
B. pouring a concrete retaining wall (6) at one side of the construction ditch close to the side slope (4), pouring a plurality of concrete batten strips (15) on the side slope (4), and fixedly connecting the upper ends of the batten strips (15) with the retaining wall (6);
C. hoisting the pipe gallery (2) into a construction ditch, reserving a first filling space (7) between one side of the pipe gallery (2) and the retaining wall (6), and reserving a second filling space (8) on the other side of the pipe gallery (2);
D. filling a first filling space (7) and a second filling space (8), and arranging a plurality of layers of geogrids (9) in the second filling space (8) during filling;
E. and paving the sidewalk (1) on the top of the pipe gallery (2).
2. The construction method of the prefabricated micro pipe gallery square section according to claim 1, characterized in that: and step B, digging a plurality of pouring grooves on a sidewalk between the construction ditch and the side slope (4), then building a retaining wall template in the construction ditch, building a batten pressing template on the side slope (4), and finally pouring concrete in the retaining wall template, the pouring grooves and the batten pressing template to obtain the integrated batten pressing (15), the connecting section (10) and the retaining wall (6).
3. The construction method of the prefabricated micro pipe gallery square section according to claim 2, characterized in that: and B, digging a plurality of T-shaped reinforcing piles (11) at the bottom of the construction ditch before pouring the retaining wall (6), and after pouring the retaining wall (6), positioning the upper ends of the reinforcing piles (11) inside the retaining wall (6).
4. The construction method of the prefabricated micro pipe gallery square section according to claim 1, characterized in that: two positioning plates (12) are arranged in the pressing plate strips (15), the positioning plates (12) of two adjacent pressing plate strips (15) are connected through a steel wire mesh (16), and the steel wire mesh (16) is paved on the surface of the side slope (4).
5. The construction method of the prefabricated micro pipe gallery square section according to claim 1, characterized in that: the second filling space (8) comprises a tamping section adjacent to the pipe gallery (2) and a common filling section far away from the pipe gallery (2), when the tamping section is filled, the compaction rate of filling soil is greater than 90%, the bearing capacity of the filling soil is greater than 100kPa, when the first filling space (7) is filled, the compaction rate of the filling soil is greater than 90%, and the bearing capacity of the filling soil is greater than 100 kPa.
6. The construction method of the prefabricated micro pipe gallery square section according to claim 5, characterized in that: the width of the tamper segment is greater than or equal to 1.5 m.
7. The construction method of the prefabricated micro pipe gallery square section according to claim 5, characterized in that: the first filling space (7) and the tamping section are filled mechanically.
8. The construction method of the prefabricated micro pipe gallery square section according to claim 1, characterized in that: and C, tamping the bottom of the construction ditch, wherein the compaction rate is greater than or equal to 95 percent, and the bearing capacity of the bottom of the construction ditch is greater than or equal to 150 kPa.
9. The construction method of the prefabricated micro pipe gallery square section according to claim 1, characterized in that: the bottom of piping lane (2) is provided with a plurality of sawtooth bosss (13).
10. The construction method of the prefabricated micro pipe gallery square section according to claim 4, characterized in that: an ecological bag (14) is laid on the steel wire mesh (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010722017.3A CN111827350B (en) | 2020-07-24 | 2020-07-24 | Construction method for prefabricated miniature pipe gallery square filling section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010722017.3A CN111827350B (en) | 2020-07-24 | 2020-07-24 | Construction method for prefabricated miniature pipe gallery square filling section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111827350A CN111827350A (en) | 2020-10-27 |
| CN111827350B true CN111827350B (en) | 2022-04-15 |
Family
ID=72925220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010722017.3A Active CN111827350B (en) | 2020-07-24 | 2020-07-24 | Construction method for prefabricated miniature pipe gallery square filling section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111827350B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5608060B2 (en) * | 2010-12-03 | 2014-10-15 | 大成建設株式会社 | Housing construction method and formwork for following housing |
| CN106759530A (en) * | 2016-12-30 | 2017-05-31 | 中国机械工业集团有限公司 | A kind of efficient vibration isolating method in underground precision laboratory |
| CN206873467U (en) * | 2017-06-26 | 2018-01-12 | 湖南新大陆生态建设有限公司 | A kind of side slope protection afforestation equipment |
| CN207228130U (en) * | 2017-09-29 | 2018-04-13 | 苏州规划设计研究院股份有限公司 | A kind of city integrated piping lane foundation pit backfill processing combined system |
| CN109339064A (en) * | 2018-12-05 | 2019-02-15 | 济南热力集团有限公司 | The guard method and its protection structure of the parallel thermal pipe of fuel gas conduit when thermal pipe is laid with |
-
2020
- 2020-07-24 CN CN202010722017.3A patent/CN111827350B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111827350A (en) | 2020-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108330764B (en) | Shallow layer solidified pile bearing type embankment and construction method | |
| CN214993554U (en) | Hydraulic engineering's side slope reinforced structure | |
| CN108221528B (en) | Roadbed building overlapping structure and construction method | |
| KR101370102B1 (en) | Cast-in-place type top-pile and construction process of the same | |
| CN109440812B (en) | Retaining wall structure and construction method thereof | |
| CN102493485B (en) | Method for building slope protection retaining wall during filling | |
| CN117449423A (en) | Construction process for newly-built inspection well under state of maintaining water flowing state of existing pipeline | |
| CN111827350B (en) | Construction method for prefabricated miniature pipe gallery square filling section | |
| CN115029977B (en) | Assembled composite road and bridge transition embankment and construction method thereof | |
| CN216688857U (en) | Side width structure of existing line embankment | |
| CN215165533U (en) | Anchoring structure for side slope of solid waste landfill | |
| CN112681022B (en) | Construction method for roadbed structure with existing operation railway side width and elevated track | |
| CN210341508U (en) | Cutting heavy grade rack rail railway structure | |
| CN210163739U (en) | Town road constructed based on prestressed concrete sheet piles | |
| CN111851185A (en) | Self-compacting cement soil widening roadbed and construction method | |
| CN214783654U (en) | Flood prevention wall structure | |
| CN212247671U (en) | Overall supporting and retaining structure for expansive rock cutting section | |
| CN110258625A (en) | A kind of construction method of filled-up ground retaining wall | |
| CN217419689U (en) | Soil body high slope outer buttress formula barricade anchor rope reinforced structure | |
| KR20200088659A (en) | Top-down type underground structure construction method using earth support plate | |
| CN216892462U (en) | Cutting slope is thick swift current and is administered structure of compounding of body | |
| CN218116497U (en) | Fill area anchor and draw formula sheet pile wall | |
| CN217324799U (en) | Prevent roadbed structure that subsides | |
| CN221297961U (en) | Novel steel bar gabion retaining wall structure | |
| KR100536429B1 (en) | Block structure of inorganic porous material and laying method using that |
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 |