CN117703397A - Construction method for mud-water balance jacking pipe of polluted soil stratum - Google Patents
Construction method for mud-water balance jacking pipe of polluted soil stratum Download PDFInfo
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- CN117703397A CN117703397A CN202311772040.3A CN202311772040A CN117703397A CN 117703397 A CN117703397 A CN 117703397A CN 202311772040 A CN202311772040 A CN 202311772040A CN 117703397 A CN117703397 A CN 117703397A
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- polluted soil
- construction
- soil
- pollution
- mud
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- 239000002689 soil Substances 0.000 title claims abstract description 108
- 238000010276 construction Methods 0.000 title claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 230000002265 prevention Effects 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims abstract description 5
- 238000012864 cross contamination Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 229920006262 high density polyethylene film Polymers 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 230000036561 sun exposure Effects 0.000 claims description 2
- 238000009435 building construction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241001536352 Fraxinus americana Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Sewage (AREA)
Abstract
The invention provides a construction method for mud-water balance jacking pipes of a polluted soil stratum, and relates to the field of building construction. S1, positioning and paying off at a place where pipe jacking construction is performed in advance, and constructing a special temporary storage field with barrier and seepage prevention functions for pollution; s2, carrying out layered cleaning on different pollution types of soil in a working well and a receiving well, and placing the polluted soil and underground water in a temporary storage field and marking; s4, before drilling construction of the pipe push bench, measuring and positioning a pollution area penetrated by the pipe push bench, and determining a pollution area of polluted soil, pollution boundaries of different polluted soil and the connection of the polluted soil and clean soil on a construction site according to inflection point coordinates of the pollution area; and S5, during pipeline jacking construction, classifying and temporarily storing the discharged mud with different pollution types in the jacking process. The invention carries out strict classification and independent temporary storage on the produced soil with different pollution types through regional and sectional jacking construction, thereby solving the problem of secondary pollution of the polluted soil to the environment.
Description
Technical Field
The invention relates to the technical field of pipe jacking construction, in particular to a mud-water balance pipe jacking construction method for a polluted soil stratum.
Background
The pipe jacking construction is to push a tool pipe or a heading machine from a working well to a receiving well all the way through a soil layer by means of pushing equipment, continuously cut soil scraps by means of a drilling system arranged at the head of a pipeline, and discharge the cut soil scraps by a soil discharging system so as to realize final pipeline construction. One of the pipe jacking construction processes is a slurry balance construction process, which refers to a pipe jacking working method by maintaining slurry in a cutting tool cavity of a pipe jacking machine at a certain pressure.
In some urban strata, because the soil property condition is complex, polluted soil or underground water exists, when stratum jacking construction is carried out, discharged soil and underground water cleaning measures cannot refer to the conventional project, and cleaning and disposal of the polluted soil and the underground water and corresponding environmental protection requirements are required to be considered in the construction process. When the existing pipe jacking construction method encounters a stratum of polluted soil, construction is difficult, such as cross contamination is easy to occur between the polluted soil and clean soil in the construction process, cross contamination is easy to occur between different polluted soil types, and secondary pollution is easy to be caused to construction environment due to improper collection or treatment of the excavated soil or the extracted groundwater. The existing construction method cannot meet the corresponding environment-friendly requirement, often causes pollution to the construction environment and delays the construction period of the jacking pipe.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, in order to solve the technical problems that the construction environment is polluted and the corresponding environment protection requirement cannot be met, the invention designs and provides a construction method for balancing the mud and water of the polluted soil stratum, and the produced soil with different pollution types is strictly classified and singly temporarily stored through regional and sectional jacking construction, so that the problem of secondary pollution of the polluted soil to the environment is solved.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a construction method for mud-water balance jacking pipes of a polluted soil stratum comprises the following steps:
s1, positioning and paying off at a place where pipe jacking construction is performed in advance, and constructing a temporary storage field special for polluted soil and underground water with barrier and seepage prevention functions;
s2, carrying out layered cleaning on different pollution types of soil in a working well and a receiving well, and placing the polluted soil and underground water in a temporary storage field and marking;
s3, hardening the peripheries of the working well and the receiving well and the ground by adopting concrete, paving an HDPE film for seepage prevention, and then installing rails and equipment;
s4, before drilling construction of the pipe-jacking machine, measuring and positioning a pollution area penetrated by the pipe-jacking machine, determining a pollution area of polluted soil, pollution boundaries of different polluted soil and the connection of the polluted soil and clean soil on a construction site according to inflection point coordinates of the pollution area, and using lime to scatter lines or color flag positioning marks;
and S5, during pipeline jacking construction, classifying and temporarily storing the discharged mud with different pollution types in the jacking process.
Further, S1 still includes to harden the prevention of seepage processing of doing in temporary storage field bottom, and the roof of rain-proof, insolateing is built at the top, and inside setting up the retaining wall is used for piling up respectively and digs out different grade type pollutant, sets up retaining wall, escape canal all around and prevents that the rainwater from getting into.
Further, S2 still includes to dig adopts layer by layer, the contaminated zone of partition to dig, and to detect the acceptance of checking its lateral wall, pit bottom after digging an area, just can carry out next contaminated zone or next layer dig construction work after the acceptance of checking.
Further, S2 also comprises the step of timely classifying and piling up the cleaned polluted soil, and timely pumping and discharging the polluted underground water generated in the construction process to a closed tank for temporary storage, so that cross contamination with the polluted soil is avoided.
Further, S4 also comprises the step of paying attention to the coordinate condition of the marking point position at any time in the construction process, so that the accuracy of the drilling position of the pipe pushing jack is ensured.
Further, S5 also comprises reserving a soil layer thickness of 5-10cm near the junction of the two areas when drilling another polluted soil area from one polluted soil area, stopping drilling, cleaning a drill bit, collecting and individually piling the generated polluted soil to a storage yard, discharging the sludge-water bin, and collecting the waste water after sludge-water separation into a closed tank body.
And S5, further, the construction is started from the reserved soil layer at the boundary during the construction, the drilled soil is used as the polluted soil of the next layer to be piled up, and thus the drilling, the collection and the piling up are carried out layer by layer.
Further, S5 still includes placing the contaminated soil classification in temporary storage field and making the sign, and after the groundwater of clearance was collected to airtight jar body, place in the stock dump and in time cover, prevent that the container that the sun insolated and leads to from ageing, revealing.
Further, the method also comprises the step of arranging a control room at the outer side of the working well at the same time, and strictly controlling the advancing construction speed of the drilling machine so as to ensure the areas of different pollution types of soil.
Compared with the prior art, the invention has the advantages and positive effects that: according to the muddy water balanced jacking construction method for the polluted soil stratum, disclosed by the invention, the drilling process of the push bench is measured and positioned, the regional and sectional jacking construction mode is implemented, the produced soil with different pollution types is strictly classified and individually temporarily stored, and the cross pollution among the polluted soil is effectively avoided; the temporary storage field with the barrier and seepage prevention functions is built, the rainproof shed of the rainproof facility is built, the polluted soil is placed in the temporary storage field in a classified mode and marked, the cleaned underground water is collected to the on-site closed tank body and then is placed in the storage field to be covered in time, the container aging, leakage and the like caused by insolation by the sun are prevented, and the problem that the polluted soil causes secondary pollution to the environment is solved.
Drawings
FIG. 1 is a schematic diagram of a temporary storage field plane structure according to the present invention;
FIG. 2 is a schematic diagram showing the internal structure of a temporary storage field according to the present invention.
Legend description:
1. a contaminated soil stacking zone; 2. a polluted water tank stacking area; 3. a ceiling; 4. a water retaining wall; 5. and a drainage ditch.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
A method for constructing a muddy water balanced jacking pipe of a contaminated soil strata according to an embodiment of the invention will be described with reference to fig. 1 to 2, comprising the steps of:
positioning and paying off at a place where pipe jacking construction is performed in advance, constructing a polluted soil stacking area 1 with a barrier and seepage prevention function, a polluted water tank stacking area 2, hardening the bottom to perform seepage prevention treatment, constructing a rainproof and insolation-proof ceiling 3 at the top, arranging retaining walls in the top to stack different types of pollutants which are excavated respectively, and arranging water retaining walls 4 and drainage ditches 5 around to prevent rainwater from entering; the star tile surface of the ceiling 3 is required to be subjected to leakage-proof treatment, the tile bottom is paved with nylon cloth, and the water retaining wall 4 is arranged around the inner side of a steel pipe of the temporary storage field and is a reinforced concrete wall with the height of 1.2 meters.
And carrying out layered cleaning on different pollution types of soil of the working well and the receiving well, and placing the polluted soil and underground water in a temporary storage field in a classified manner and marking. The cleaning and digging adopts layer by layer and separated pollution areas, and after one area is cleaned and dug, the side wall and pit bottom of the area are detected and accepted, and after the acceptance is qualified, the next pollution area or the next layer of cleaning and digging construction work can be carried out. The cleaned polluted soil is timely classified and piled up, and the polluted underground water generated in the construction process is timely pumped and discharged to a closed tank for temporary storage, so that cross contamination with the polluted soil is avoided;
concrete hardening is adopted around the working well and the receiving well and on the ground, HDPE films are paved for seepage prevention, and then rails and equipment are installed;
before the drilling construction of the pipe push bench, measuring and positioning the pollution area penetrated by the pipe push bench, determining the pollution area of the pollution soil of the construction site, the pollution boundaries of different pollution soils, the connection of the pollution soils and the clean soil and the like according to the inflection point coordinates of the pollution soil area, and using white ash to scatter lines or color flags to position marks. The coordinate condition of the marking point position is concerned at all times in the construction process, so that the accuracy of the drilling position of the pipe pushing jack is ensured;
when the pipeline jacking pipe is constructed, the discharged mud with different pollution types is subjected to classified temporary storage treatment in the jacking process. When another contaminated soil area is drilled from a certain contaminated soil area, reserving a soil layer thickness of 5-10cm near the junction of the two areas, stopping drilling, cleaning a drill bit, collecting and piling the produced contaminated soil to a storage yard independently, discharging the sludge-water bin, and collecting the waste water after sludge-water separation to a closed tank body. When the construction is carried out, the construction is carried out from the reserved soil layer at the boundary, the drilled soil is used as the polluted soil of the next layer to be piled up, and thus, the drilling, the collection and the piling up are carried out layer by layer and section by section;
the polluted soil is classified and placed in a temporary storage field and marked, and cleaned underground water is collected to a closed tank body and then placed in a storage field to be covered in time, so that the ageing and leakage of a container caused by sun exposure are prevented;
meanwhile, a control room is arranged on the outer side of the working well, and the advancing construction speed of the drilling machine is strictly controlled so as to ensure the distinction of soil with different pollution types.
As shown in fig. 2, a channel 6 is arranged between the polluted soil stacking area 1 and the polluted water tank stacking area 2, a slope 7 with a certain gradient is arranged between the temporary storage area and the drainage ditch 5, and a signboard 8 is arranged outside each temporary storage area.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. The construction method of the muddy water balance jacking pipe of the polluted soil stratum is characterized by comprising the following steps of:
s1, positioning and paying off at a place where pipe jacking construction is performed in advance, and constructing a temporary storage field special for polluted soil and underground water with barrier and seepage prevention functions;
s2, carrying out layered cleaning on different pollution types of soil in a working well and a receiving well, and placing the polluted soil and underground water in a temporary storage field and marking;
s3, hardening the peripheries of the working well and the receiving well and the ground by adopting concrete, paving an HDPE film for seepage prevention, and then installing rails and equipment;
s4, before drilling construction of the pipe push bench, measuring and positioning a pollution area penetrated by the pipe push bench, and determining a pollution area of polluted soil, pollution boundaries of different polluted soil and the connection of the polluted soil and clean soil on a construction site according to inflection point coordinates of the pollution area;
and S5, during pipeline jacking construction, classifying and temporarily storing the discharged mud with different pollution types in the jacking process.
2. The construction method of mud-water balance jacking pipes for the polluted soil stratum according to claim 1, wherein S1 further comprises the steps of hardening the bottom of the temporary storage field to be impermeable, constructing a rainproof and insolation-proof ceiling at the top, internally arranging retaining walls for respectively piling up different types of pollutants which are dredged out, and arranging retaining walls and drainage ditches around to prevent rainwater from entering.
3. The construction method of the muddy water balance jacking pipe of the polluted soil stratum according to claim 1, wherein S2 further comprises the steps of cleaning the polluted soil stratum layer by layer and separating the polluted soil stratum into the polluted soil stratum areas, detecting and checking the side wall and the pit bottom of the polluted soil stratum area after cleaning one polluted soil stratum area, and cleaning the polluted soil stratum area or the next polluted soil stratum area after checking and checking to be qualified.
4. The construction method for mud-water balanced jacking pipes of the polluted soil stratum according to claim 3, wherein S2 further comprises timely classifying and piling up the excavated polluted soil, and timely pumping and draining the polluted underground water generated in the construction process to a closed tank for temporary storage, so that cross contamination with the polluted soil is avoided.
5. The construction method for mud-water balanced jacking pipes of the polluted soil stratum according to claim 1, wherein the step S4 further comprises the step of focusing on the coordinate condition of the marking point position at any time in the construction process, so that the accuracy of the drilling position of the jacking pipe machine is ensured.
6. The construction method of mud-water balance jacking pipes of a polluted soil stratum according to claim 1, wherein S5 further comprises reserving a soil layer thickness of 5-10cm near the junction of two areas when drilling another polluted soil area from one polluted soil area, stopping drilling, cleaning a drill bit, collecting and individually piling generated polluted soil to a storage yard, discharging mud-water bins, and collecting waste water after mud-water separation to a closed tank body.
7. The construction method for mud-water balanced jacking pipes for polluted soil strata according to claim 6, wherein the step S5 further comprises the step of piling up the drilled soil as the polluted soil of the next layer from the reserved soil layer of the boundary during the construction, so that the drilling, the collection and the piling are carried out section by section.
8. The construction method of mud-water balance jacking pipes for the polluted soil strata according to claim 7, wherein S5 further comprises the steps of placing the polluted soil in a temporary storage field in a classified mode and marking, collecting the cleaned underground water into a closed tank body, and placing the cleaned underground water in a storage field to timely cover the cleaned underground water so as to prevent ageing and leakage of a container caused by sun exposure.
9. The construction method for mud-water balanced jacking pipes of the polluted soil stratum according to claim 1, further comprising the step of arranging a control room at the outer side of the working well at the same time, and strictly controlling the advancing construction speed of the drilling machine so as to ensure the distinction of different polluted soil types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311772040.3A CN117703397A (en) | 2023-12-21 | 2023-12-21 | Construction method for mud-water balance jacking pipe of polluted soil stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311772040.3A CN117703397A (en) | 2023-12-21 | 2023-12-21 | Construction method for mud-water balance jacking pipe of polluted soil stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117703397A true CN117703397A (en) | 2024-03-15 |
Family
ID=90162092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311772040.3A Pending CN117703397A (en) | 2023-12-21 | 2023-12-21 | Construction method for mud-water balance jacking pipe of polluted soil stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117703397A (en) |
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2023
- 2023-12-21 CN CN202311772040.3A patent/CN117703397A/en active Pending
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