CN110424518B - Construction method of geotechnical engineering drain pipe - Google Patents
Construction method of geotechnical engineering drain pipe Download PDFInfo
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- CN110424518B CN110424518B CN201910708682.4A CN201910708682A CN110424518B CN 110424518 B CN110424518 B CN 110424518B CN 201910708682 A CN201910708682 A CN 201910708682A CN 110424518 B CN110424518 B CN 110424518B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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Abstract
The invention discloses a construction method of a geotechnical engineering drain pipe, belongs to the technical field of drainage pipelines, and solves the problem that the existing hoisting equipment can align and splice the drain pipe only by spending a long time in the hoisting and splicing process, so that the space is improved, and the technical scheme is characterized in that: the method comprises the following steps: s100: excavating a groove and tamping the bottom of the groove; s200: paving a concrete cushion layer in the groove, arranging support rods for supporting the drain pipe in the concrete cushion layer, symmetrically and obliquely arranging the support rods on two sides of the drain pipe, and arranging a plurality of support rods at intervals along the trend of the drain pipe; s300: conveying the drain pipe into the groove by using hoisting equipment for splicing; s400: backfilling sandy soil into the groove; s500: tamping the ground surface; the supporting rod is provided with a positioning groove matched with the positioning snap ring, and time spent in the splicing process of the drain pipe can be reduced.
Description
Technical Field
The invention relates to the technical field of engineering drainage, in particular to a construction method of a geotechnical engineering drainage pipe.
Background
As a main product of drainage in traditional geotechnical engineering, concrete drainage pipes have been widely accepted and applied, and have absolute advantages and public praise. The drainage pipe is used for a rainwater pipe and a sewage pipe with the internal water pressure not more than 0.1MPa, and can also be used for pressure drainage or a power cable pipe and the like under the conditions of design calculation and special process (such as reinforcement increasing, concrete strength improving and the like).
Present drain pipe all is that a lesson hoist and mount concatenation forms, and the concatenation of drain pipe must guarantee the axial alignment of drain pipe, and hoisting equipment needs the cost longer time at its hoist and mount concatenation process at present and just can aim at the concatenation with the drain pipe, consequently has improved space.
Disclosure of Invention
The invention aims to provide a construction method of a geotechnical engineering drain pipe, which can reduce the time spent in splicing the drain pipe.
The technical purpose of the invention is realized by the following technical scheme:
a construction method of a geotechnical engineering drain pipe comprises the following steps:
s100: excavating a groove and tamping the bottom of the groove;
s200: paving a concrete cushion layer in the groove, arranging support rods for supporting the drain pipe in the concrete cushion layer, symmetrically and obliquely arranging the support rods on two sides of the drain pipe, and arranging a plurality of support rods at intervals along the trend of the drain pipe;
s300: conveying the drain pipe into the groove by using hoisting equipment for splicing;
s400: backfilling sandy soil into the groove;
s500: tamping the ground surface;
wherein, the peripheral wall of the drain pipe is provided with a positioning groove, a positioning snap ring is clamped in the positioning groove, and the support rod is provided with a positioning groove matched with the positioning snap ring.
Through adopting above-mentioned technical scheme, through set up the location snap ring on the perisporium of drain pipe, the drain pipe offsets in the positioning groove through location snap ring and bracing piece, and the bracing piece supports the drain pipe to realize inlet channel's installation.
The invention is further configured to: the both ends mouth of drain pipe all is provided with resistance to compression arc board, location snap ring and bracing piece cooperation back resistance to compression arc board are located the drain pipe directly over.
Through adopting above-mentioned technical scheme, when normal use, the pressurized at drain pipe top is the biggest, through the setting of resistance to compression arc board, can promote the compressive capacity at drain pipe top, promotes the result of use of drain pipe.
The invention is further configured to: the positioning clamping ring is provided with an opening clamped into the positioning groove, the angle of the opening is smaller than 180 degrees, and the positioning clamping ring is flexible.
Through adopting above-mentioned technical scheme, have the opening on the location snap ring, thereby go into the in-process opening and expand and go into the location snap ring card the constant head tank in, realize the locking of location snap ring simultaneously.
The invention is further configured to: the drain pipe has seted up the locating hole on the constant head tank is internal, set up the elasticity bolt of card income in the locating hole on the location snap ring.
Through adopting above-mentioned technical scheme, behind the constant head tank, can follow the constant head tank and rotate the location snap ring card, realize the fixed of location snap ring after the elasticity bolt inserts the locating hole on the location snap ring, rotate after avoiding the location snap ring chucking.
The invention is further configured to: the width of the positioning groove is 1/3 of the width of the supporting rod and is positioned at the middle position of the supporting rod.
By adopting the technical scheme: through 1/3 and setting up at the middle part position that sets up positioning groove's width into the bracing piece, when the bracing piece supported the drain pipe, the bracing piece was located positioning groove's both sides homoenergetic and can support the drain pipe.
The invention is further configured to: before S400, the bottom of the drainage pipe is backfilled through medium coarse sand, and the drainage pipe is tamped manually.
Through adopting above-mentioned technical scheme, the fastness is higher after the well coarse sand tamps, can prevent that the drain pipe bottom from producing deformation because of the inequality atress of incompact.
The invention is further configured to: and S410 is also arranged between S400 and S500: and the joint between the two adjacent drain pipes is filled with water-absorbing expansion materials.
By adopting the technical scheme, when water overflows from the gap between the two rows of water pipes, the water-absorbing expansion material can absorb water and expand to fill the gap between the two rows of water pipes, so that the water outlet can be effectively filled, and the water is not leaked.
The invention is further arranged in a way that the outer side surfaces of the two rows of water pipes are respectively embedded with a first sleeve ring and a second sleeve ring, and a plurality of fixing rods are fixedly connected between the first sleeve ring and the second sleeve ring and tightly pressed on the water-absorbing expansion material.
Through adopting above-mentioned technical scheme, the setting of first lantern ring, second lantern ring and dead lever can make the drain pipe can not longitudinal movement, but the difficult pine of drain pipe takes off to be difficult for leaking.
The invention further provides that the groove is in an inverted trapezoidal shape.
Through adopting above-mentioned technical scheme, through setting up the slot into the trapezoidal form that falls, made things convenient for to put into the drain pipe in the slot, when backfilling soil to the ditch inslot, soil can roll into the bottom of drain pipe in order to conveniently fill the bottom of drain pipe along the oblique lateral wall of slot, makes the drain pipe more firm.
In conclusion, the invention has the following beneficial effects:
1. the positioning clamp ring is matched with the support rod, so that the accurate orientation positioning of the pressure-resistant arc plate is realized, the pressure-resistant ability of the top of the drain pipe can be enhanced by the pressure-resistant arc plate, and the top of the drain pipe is prevented from being damaged by pressure;
2. the support rods fixed on the drain pipe are respectively arranged on the two sides of the drain pipe positioned in the groove, so that the mounted drain pipe is not easy to move transversely and longitudinally, the drain pipe can be prevented from loosening, and the phenomenon of water leakage can not occur;
2. the water-absorbing expansion material can absorb water and expand to fill the gap between the two rows of water pipes, so that the water outlet can be effectively filled, and water can not leak;
3. the rubber layer plays the effect of buffering, can slow down the real-time impact to the drain pipe of rammer, makes the difficult destruction of drain pipe.
Drawings
FIG. 1 is a schematic view of a drain and a trench;
FIG. 2 is a view of structural connections between the drainage pipes;
FIG. 3 is a sectional view showing the structure between the drain pipes;
FIG. 4 is a block diagram of a retaining snap ring;
FIG. 5 is a structural view of the support stick;
fig. 6 is a structural view of the reinforcing structure.
In the figure: 1. a trench; 11. a concrete cushion; 2. a drain pipe; 21. positioning a groove; 22. positioning holes; 23. positioning the snap ring; 231. positioning the projection; 232. a latch block; 24. expanding the mouth; 3. a support bar; 31. an arcuate bar; 32. a positioning groove; 4. a compression-resistant arc plate; 5. reinforcing the structure; 51. a first annular groove; 52. a second annular groove; 53. a first collar; 54. fixing the rod; 55. a second collar; 6. a water swellable material.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a construction method of a geotechnical engineering drain pipe 2 includes the following specific steps:
s100: excavating the ground surface by using an excavator to form an inverted trapezoidal groove 1, and tamping the groove 1 by using a tamping machine to ensure that the soil in the groove 1 is hard and stable;
s200: the supporting rods 3 for supporting the drain pipe 2 are arranged in the groove 1, the supporting rods 3 are symmetrically and obliquely arranged on two sides of the drain pipe 2, the central angle between the two supporting rods 3 is 120 degrees, meanwhile, a plurality of supporting rods 3 are arranged at intervals along the trend of the drain pipe 2, then, a concrete cushion layer 11 is laid in the groove 1, and the bottom of each supporting rod 3 is embedded in the concrete cushion layer 11 after the concrete cushion layer 11 is formed;
s300: the drain pipe 2 is sent into the groove 1 by using hoisting equipment for splicing;
referring to fig. 1 and 2, an arc-shaped positioning groove 21 is formed in the circumferential wall of the water discharge pipe 2, a pressure-resistant arc plate 4 is arranged on the upper end surface of the water discharge pipe 2, a connection line angle between two ends of the pressure-resistant arc plate 4 and the circle center of the water discharge pipe 2 is 60-90 degrees, in the embodiment, 90 degrees is preferred, and two ends of the positioning groove 21 are abutted against two ends of the pressure-resistant arc plate 4.
Referring to fig. 3, 4 and 5, a positioning snap ring 23 is snapped in the positioning groove 21, the positioning snap ring 23 has an opening for snapping into the positioning groove 21, the opening angle is less than 180 °, the opening angle is preferably 135 ° in the present embodiment, the positioning snap ring 23 has flexibility, and can have a tightening force after snapping into the positioning groove 21, and cannot be disengaged from the positioning groove 21. Have the location lug that extends to the constant head tank 21 outside on the holding ring, the front end of bracing piece 3 has arc pole 31 to seted up on arc pole 31 with location lug complex positioning groove 32, the width of constant head tank 21 is 1/3 of bracing piece 3 width, and is located the middle part position of bracing piece 3, behind positioning groove 32 was gone into to the location lug card, the outer wall in drain pipe 2 was hugged closely to the concave surface of arc pole 31.
The drain pipe 2 is provided with a positioning hole 22 in the positioning groove 21, the positioning snap ring 23 is provided with an elastic bolt clamped in the positioning hole 22, the elastic bolt is a bolt block 232 movably arranged on the positioning snap ring 23 and a spring (not shown in the figure) positioned at the bottom of the bolt block 232, and the bolt block 232 is driven by the spring to be inserted into the positioning hole 22 to realize locking.
Referring to fig. 3, one end of the water discharge pipe 2 has an expansion opening 24 expanded outward, and a water absorbent swelling material 6 is provided at the front end of the expansion opening 24, the maximum inner diameter of the expansion opening 24 is the same as the outer diameter of the other end of the water discharge pipe 2, the water absorbent swelling material 6 is preferably a water absorbent resin, and when water leaks from the joint between the two water discharge pipes 2, the water absorbent resin can absorb the water and swell itself to fill the gap, so that the water overflow is suppressed.
Referring to fig. 1, 3 and 6, in order to further increase the stable drain pipes 2, a reinforcing structure 5 is arranged between two adjacent drain pipes 2, the reinforcing structure 5 includes a first annular groove 51 and a second annular groove 52 which are respectively arranged on the outer side surfaces of two adjacent rows of drain pipes 2, a first collar 53 and a second collar 55 are respectively embedded on the first annular groove 51 and the second annular groove 52, a plurality of fixing rods 54 are welded between the first collar 53 and the second collar 55 in the circumferential direction, and each fixing rod 54 is tightly pressed on the water-absorbing expansion material 6. The reinforcing structure 5 is initially sleeved on the side of the drain pipe 2 provided with the expansion port 24 through the second collar 55 and is connected when the drain pipe 2 is spliced.
S400: backfilling the medium coarse sand to the bottom of the drainage pipe 2, manually tamping, and backfilling sandy soil into the groove 1 to the top of the pipe by 50 cm;
s500: tamping the ground surface.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. A construction method of a geotechnical engineering drain pipe is characterized by comprising the following steps:
s100: excavating the groove (1) and tamping the bottom of the groove (1);
s200: a concrete cushion (11) is laid in the groove (1), support rods (3) for supporting the drain pipe (2) are arranged in the concrete cushion (11), the support rods (3) are symmetrically and obliquely arranged on two sides of the drain pipe (2), and a plurality of support rods are arranged at intervals along the trend of the drain pipe (2);
s300: the drain pipe (2) is sent into the groove (1) by using hoisting equipment for splicing;
s400: backfilling sandy soil, and backfilling the sandy soil into the trench (1);
s500: tamping the ground surface;
wherein, seted up constant head tank (21) on the perisporium of drain pipe (2) to the joint has location snap ring (23) in constant head tank (21), has location arch (231) on location snap ring (23), is provided with on bracing piece (3) with location arch (231) matched with positioning groove (32), drain pipe (2) have seted up locating hole (22) on constant head tank (21), set up the elasticity bolt of card income in locating hole (22) on location snap ring (23).
2. The construction method of geotechnical engineering drain pipe according to claim 1, wherein: the two end openings of the drain pipe (2) are provided with compression-resistant arc plates (4), and the compression-resistant arc plates (4) are located right above the drain pipe (2) after the positioning snap ring (23) and the support rod (3) are matched.
3. The construction method of the geotechnical engineering drain pipe according to claim 2, wherein: the positioning clamping ring (23) is provided with an opening clamped into the positioning groove (21), the angle of the opening is smaller than 180 degrees, and the positioning clamping ring (23) is flexible.
4. The construction method of geotechnical engineering drain pipe according to claim 1, wherein: the width of the positioning groove (32) is 1/3 of the width of the supporting rod (3), and the positioning groove is positioned in the middle of the supporting rod (3).
5. The construction method of the geotechnical engineering drain pipe according to claim 4, wherein: before S400, the water drainage pipe (2) is backfilled to the bottom of the water drainage pipe through medium coarse sand, and the water drainage pipe is manually tamped.
6. The construction method of geotechnical engineering drain pipe according to claim 1, wherein: and a water-absorbing expansion material (6) is filled at the joint between two adjacent drain pipes (2).
7. The construction method of geotechnical engineering drain pipe according to claim 6, wherein: the outer side surfaces of the two rows of water pipes (2) are respectively embedded with a first lantern ring (53) and a second lantern ring (55), a plurality of fixing rods (54) are fixedly connected between the first lantern ring (53) and the second lantern ring (55), and the fixing rods (54) are tightly pressed on the water absorption expansion material (6).
8. The construction method of geotechnical engineering drain pipe according to claim 1, wherein: the groove (1) is in an inverted trapezoid shape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708682.4A CN110424518B (en) | 2019-08-01 | 2019-08-01 | Construction method of geotechnical engineering drain pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910708682.4A CN110424518B (en) | 2019-08-01 | 2019-08-01 | Construction method of geotechnical engineering drain pipe |
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| CN110424518A CN110424518A (en) | 2019-11-08 |
| CN110424518B true CN110424518B (en) | 2021-09-10 |
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| CN111609215B (en) * | 2020-05-22 | 2022-04-22 | 福建得乾集团有限责任公司 | Shear-resistant structure of nodular cast iron pipe joint and setting method thereof |
| CN113074280B (en) * | 2021-03-24 | 2022-07-29 | 广东汇晟建设有限公司 | Highway drainage pipeline installation process |
| CN115288269B (en) * | 2022-08-25 | 2023-07-11 | 乐昌市住宅建筑工程有限公司 | Municipal drainage structure and construction method thereof |
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| CN101565964A (en) * | 2009-05-25 | 2009-10-28 | 青岛恒生源集团建设有限公司 | Construction method for mounting outdoor embedded high-density polyethylene double-wall corrugated drain pipe |
| CN101936032A (en) * | 2010-08-27 | 2011-01-05 | 常熟市浩通市政工程有限公司 | Method for mounting and constructing polyethylene double-wall corrugated water discharge pipe |
| CN106948458A (en) * | 2017-05-19 | 2017-07-14 | 中国水利水电第四工程局有限公司 | A kind of drainage management construction method |
| CN108204030B (en) * | 2017-12-13 | 2019-11-08 | 苍南县交通建设工程有限公司 | Sewage conduct mounting structure and its construction method |
| CN108692101B (en) * | 2018-07-20 | 2021-01-29 | 四川瑞通工程建设集团有限公司 | Construction method of HDPE plastic steel winding drain pipe |
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