CN103541372A - Concrete poured communication through-type 4.0 manhole and construction method thereof - Google Patents
Concrete poured communication through-type 4.0 manhole and construction method thereof Download PDFInfo
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- CN103541372A CN103541372A CN201310528586.4A CN201310528586A CN103541372A CN 103541372 A CN103541372 A CN 103541372A CN 201310528586 A CN201310528586 A CN 201310528586A CN 103541372 A CN103541372 A CN 103541372A
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Abstract
Provided are a concrete poured communication through-type 4.0 manhole and a construction method thereof. The manhole comprises a manhole foundation with the rectangular cross section, a manhole body, a manhole top cover plate and a manhole cover for sealing the manhole top cover plate upper manhole mouth. The manhole is made of cast-in-place reinforced concrete, drainage holes are formed in the manhole foundation, manhole foundation reinforced steel bars are distributed in the manhole foundation evenly, and the manhole body is poured on the manhole foundation and is of a hollow column structure defined by four walls. Double-layer bi-directional manhole body reinforced steel bars are distributed on an inner vertical plane of each wall, corresponding cable holes are formed in the left width wall and the right width wall, the inner diameter of the manhole is 4 meters, and the width of the manhole is 2 meters. The manhole is manufactured by using a concrete cast-in-place method instead of a traditional bricklaying method, the manufactured manhole is not prone to leak, the strength is obviously improved, the manhole is durable, later-period maintaining work is reduced, the manhole can be put into use after construction, and working efficiency is guaranteed. The method can be widely applied to communication manhole construction.
Description
Technical field
The present invention relates to a kind of job practices of communication people well.
Background technology
At present, most pipeline projects all relates to the construction of people's well, people's well claims again manhole, just be to provide line upkeep, maintainer enters people and implements the through hole of line upkeep maintenance use, in communication line engineering, people's well is as a node of pipeline, for constructor's turnover, conveniently construct, safeguard, cleaning and maintenance etc., long-term stability to communication quality, play a part very important, people's well size has 1.8 * 1.4 * 1.8, 2.0 * 1.4 * 1.8, 2.4 * 1.4 * 1.8, 3.0 * 1.5 * 1.8, 4.0 * 2.0 * 1.8 etc., the conventional processes of people's well construction mainly comprises: bracing of foundation pit and excavation of foundation pit, do concrete foundation, brick and cement sand plaster, lamina tecti is installed, backfill, later stage maintenance, in pipeline projects, when as larger in the pipeline hole count that runs into the more needs of pipeline inner cable, usually needing manufactured size is people's well of 4.0 * 2.0 * 1.8, it is shaped as approximate rectangular build.
But there is following defect in traditional prefabricated people's well construction method: 1, according to the needs of quality control, after completing, people's well construction that tradition prefabrication system is made to experience the sealing defects liability period of 28 days, but in fact, in communication line project, needs for scheduling, people's well that tradition prefabrication system is made after construction completes defects liability period often less than within 28 days, just come into operation, the people's well insufficient strength that causes traditional approach to be made; 2, people's well inner wall sealing imprecision, has brickwork joint: while building first, second brick in people's well, be difficult to avoid completely the formation of brickwork joint, laterally, all can occur brickwork joint in each plane longitudinally; People's well strength ratio of 3, making of first, second brick is poor, and the situations such as infiltration easily occur, not durable; 4, people's well wall body that traditional prefabrication system is made is to be built into by preformed bricks, not containing reinforcing bar, a little less than causing the anti-pressure ability of people's well, the anti-extrusion ability of borehole wall periphery is poor, while coordinating municipal construction, often cause large-area metope to damage, as often rolled and be also easy to distortion by oversize vehicle.
Summary of the invention
Through-type 4.0 people's well and the job practicess thereof of communication that the object of this invention is to provide a kind of concreting, solve people's well intensity difference, the poorly sealed close technical problem of applying conventional method; And solve the problem of people's well infiltration, not durable, anti-extrusion ability.
For achieving the above object, the present invention adopts following technical scheme:
The through-type 4.0 people's wells of a kind of communication, comprise that cross section is people's well basis of rectangle, people's well well bore, the well lid of well head on people's well lamina tecti and sealing people well lamina tecti, the material of described people's well is cast-in-situ steel reinforced concrete, people's well has drain hole above basis, the inside on people's well basis people's well reinforcement foundation of evenly arranging, described people's well well bore is cast on people's well basis, the hollow column structure being surrounded by four sides body of wall, on the inside perpendicular of every face wall body, be furnished with the well bore reinforcing bar of double-layer double-direction, on one group of relative metope, have corresponding cable punching hole, in the size of described people's well, path length is 4.0 meters, wide is 2.0 meters.
Described people's well basis is split cast structure with people's well well bore, and base plate is arranged at the bottom on described people's well basis, and on base plate, surrounding is connected with wall pier, the pre-buried hanger that is connected with on described people's well basis.
Described people's well reinforcement foundation comprises the wall pier reinforcing bar of the double-layer double-direction of evenly arranging on evenly arrange on the base plate interior horizontal plane on people's well basis baseplate reinforcing bar of double-layer double-direction and the inner perpendicular of the wall pier on people's well basis.
In described wall pier reinforcing bar, vertical steel bar preassembling is embedded in the base plate on people's well basis.
The job practices of the through-type 4.0 people's wells of communication of concreting, concrete steps are as follows:
Step 6, the vertical wall pier reinforcing bar of people's well basic internal exposes people's well basis, reserves toothing.
Step 10, assembled people's well well bore support shuttering around well bore reinforcing bar.
Step 11, builds the concrete of people's well well bore, concussion compacting simultaneously, on people's well well bore, reserves cable punching hole.
Step 12, carries out well bore maintenance, forms coagulation natives well well bore.
Step 13, removes people's well well bore support shuttering.
Step 14, at people's well well bore medial shaft to parallel interval installing cables angle iron bracket.
Step 15 is installed the supporting plate that sets up cable on cable angle iron bracket.
Step 10 six, covers coagulation natives well lamina tecti, and the seam of people's well lamina tecti and people's well well bore is done to impervious processing.
Step 10 seven, carries out well limit and fills out sand.
Step 10 eight, lays walling crib and well lid is installed in the place, hole on people's well lamina tecti.
In described step 5, on people's well basis, be embedded with hanger.
Described people's well basis built after by hanger handling to the people's well foundation ditch digging.
About described people's well basis is divided into, two parts winch in the people's well foundation ditch digging after building respectively, the horizontal reinforcing bar of people's well basic internal of two parts in described left and right leaves toothing, in people's well foundation ditch, two-part reinforcing bar toothing is interlocked and docks, also carries out at the scene the joint of two parts.
The degree of depth of described drain hole is 200 millimeters～250 millimeters.
Compared with prior art the present invention has following characteristics and beneficial effect:
Everybody well insufficient strength that the present invention has overcome that conventional method makes, anti-pressure ability poor, non-resistant shortcoming, solved the technical problem of guarantor's well intensity and sealing.
The present invention adopts concrete cast in situs to replace the method that tradition lays bricks to carry out producer's well, there is not gap in well bore, only between people's well well bore and people's well lamina tecti, there is place's interface, only need to do impervious processing at interface, just can guarantee whole sealing, people's well of making is difficult for infiltration, and the intensity of people's well obviously improves, more durable, reduced the work of later maintenance; After people's well completes, by natural way, maintain, therefore after completion, just can come into operation, guaranteed operating efficiency, in addition, handling afterwards can be built to foundation ditch in people's well of concreting basis and well bore basis, can synchronize and carry out with excavation of foundation pit, more can shorten construction period, the impact of road traffic in construction region is also greatly reduced.
The present invention can be widely used in communication manhole construction.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the structural representation of people's well of the present invention.
Fig. 2 is that the structure master of people's well left-half of the present invention looks schematic diagram.
Fig. 3 is the structure schematic top plan view of people's well left-half of the present invention.
Fig. 4 is the structure schematic top plan view of inventor's well basis left-half.
Fig. 5 is the A-A generalized section of Fig. 4.
Fig. 6 is the structure schematic top plan view of inventor's well basis right half part.
Fig. 7 is the B-B generalized section of Fig. 6.
Fig. 8 is the plan structure schematic diagram of walling crib of the present invention.
Fig. 9 is the side-looking structural representation of walling crib of the present invention.
Figure 10 is the structural representation of cable angle iron bracket of the present invention.
Figure 11 is the structural representation of fishtail bolt of the present invention.
Reference numeral: 1-people's well basis, 1.1-baseplate reinforcing bar, 1.2-wall pier reinforcing bar, 1.3-stirrup, 2-people's well well bore, 2.1-cable punching hole, 2.2-well bore reinforcing bar, 3-drain hole, 4-people's well lamina tecti, 5-cable angle iron bracket, 6-fishtail bolt, 7-well lid, 8-hanger, 9-walling crib.
The specific embodiment
Embodiment is referring to shown in Fig. 1 to Fig. 7, the through-type 4.0 people's wells of this communication, comprise that cross section is people's well basis 1 of rectangle, people's well well bore 2, the well lid 7 of well head on people's well lamina tecti 4 and sealing people well lamina tecti, the material of described people's well is cast-in-situ steel reinforced concrete, people's well basis 1 has drain hole 3 above, the degree of depth of described drain hole 3 is 200 millimeters～250 millimeters, the interior placement water accumulation tank of drain hole 3, the inside on people's well basis 1 people's well reinforcement foundation of evenly arranging, described people's well well bore 2 is cast on people's well basis 1, the hollow column structure being surrounded by four sides body of wall, on the inside perpendicular of every face wall body, be furnished with the well bore reinforcing bar 5 of double-layer double-direction, on one group of relative metope, have corresponding cable punching hole 2.1, the size high of described people's well is 1.8 meters, interior path length is 4.0 meters, wide is 2.0 meters, outer path length is 4.6 meters, wide is 2.6 meters, described people's well basis 1 is split cast structure with people's well well bore 2, base plate is arranged at the bottom on described people's well basis 1, on base plate, surrounding is connected with wall pier, described people's well reinforcement foundation comprises the wall pier reinforcing bar 1.2 of the double-layer double-direction of evenly arranging on evenly arrange on the base plate interior horizontal plane on people's well basis 1 baseplate reinforcing bar 1.1 of double-layer double-direction and the inner perpendicular of the wall pier on people's well basis 1, in described wall pier reinforcing bar 1.2, vertical steel bar preassembling is embedded in the base plate on people's well basis 1.
Described in Fig. 2, on people's well basis 1, can be embedded with in advance the hanger 8 that handling is used,
Referring to shown in Fig. 1 to Figure 11, a kind of job practices of the through-type 4.0 people's wells of communication of described concreting, concrete steps are as follows:
Step 6, the vertical wall pier reinforcing bar 1.2 of 1 inside, people's well basis exposes people's well basis 1, reserves toothing.
Step 10, assembled people's well well bore support shuttering around well bore reinforcing bar 2.2.
Step 11, builds the concrete of people's well well bore, concussion compacting simultaneously, and reserve cable punching hole 2.1 on people's well well bore 2.
Step 12, carries out well bore maintenance,, curing time is 28 days, forms coagulation natives well well bore 2.
Step 13, well bore has been built latter 7 days, removes people's well well bore support shuttering.
Step 14, to parallel interval position, installs fixing by fishtail bolt 6 by cable angle iron bracket 5 at people's well well bore medial shaft.
Step 15 is installed the supporting plate that sets up cable on cable angle iron bracket 5.
Step 10 six, covers coagulation natives well lamina tecti 4, and people's well lamina tecti 4 and the seam of people's well well bore 2 are done to impervious processing.
Step 10 seven, carries out well limit and fills out sand.
Step 10 eight, lays walling crib 9 and well lid 7 is installed in the place, hole on people's well lamina tecti.
In described step 5, on people's well basis, be embedded with hanger 8.
Shown in Fig. 2, Fig. 3, about described people's well basis is divided into, two parts winch in the people's well foundation ditch digging by hanger 8 after building respectively, the horizontal reinforcing bar of people's well basic internal of two parts in described left and right leaves toothing, in people's well foundation ditch, two-part reinforcing bar toothing is interlocked and docks, also carries out at the scene the joint of two part cast-in-situ concretes.
The construction sequence of the cast-in-place communication manhole of commercial concrete is mainly divided into two parts:
1, form work engineering
Template and accessory thereof, must have enough intensity, the technical requirements of can meet construction, vibrating.Must carry out through self check with after managing inspection confirmation, can building before the concreting of comprehensive inspection box beam to the safety of strutting system.During template assembly, in strict accordance with the operation of design drawing size, verticality, misalignment of axe, absolute altitude all should meet technical specification regulation.
Form work engineering requirement seam should be tight, with mortar leakage prevention; Zhi Haohou should be firm, has enough intensity, rigidity, and do not affect other positions and follow-up construction.The holding capacity of template should be safely, reasonable: support should be smooth vertical and horizontal, at the bottom of column, should lay backing plate; Template and concrete contact surface are answered separant coating, but should notice preventing that interleaving agent from staining reinforcing bar and concrete contact surface.
2, concreting
Template, after supervising engineer's passed examination, starts concreting, and commercial concrete should be removed the foreign material in template before building, and with clear water, template is conscientiously rinsed.Concrete is taked job site, according to label intensity, the excavator-type shovel clamshell excavator of designing requirement, is built.Strict control of material metering in mix.
In building, control well every layer build thickness, anti-leak-stopping shakes and crosses and shake, guarantee concrete density, concreting must must not be interrupted by continuous placing, as controlled break time to last resort, must be before anterior layer concrete initial set, sublevel concreting is complete, the permission of concreting interval time must not be over 2 hours, commercial concrete vibrates and adopts plug-in type vibrating rod, moving interval should not surpass 1.5 times of vibrating head operating radius, and keep the distance of 5～10 centimetres with side form, while vibrating, insert 5～10 centimetres of lower-layer concrete, after everywhere has shaken, vibrating head should be proposed slowly, to each vibration position, must shake till this position concrete compaction, namely concrete stops sinking, no longer emit bubble, surface presents smooth, bleeding.In casting process, should arrange each work post to check the variation of reinforcing bar, support and template, the situation that runs into is processed in time, should fill concrete construction record.
After concreting completes, should be after initial set maintenance as early as possible, adopt gunnysack or other article oversite concretes surface, watering maintenance, the time of concrete watering maintenance is 7 round the clock, each watering take that to keep concrete surface be often degree in moisture state.
In casting process, carry out concrete sample, frequency is two groups of each shifts simultaneously, carries out resistance to compression and anti-permeability strength check.
New person's well after completing just can come into operation at once.The through-type people's well of communication 4.0 * 2.0 * 1.8 that adopts concrete cast-in-situ mode to make can bear suitable weight power, do not lose again the attractive in appearance, practical of communication manhole, finished product people well is tested through road surface, compare with people's well that traditional prefabrication system is made, at everyways such as quality, sealing, firmness, durability, be greatly improved.
Claims (9)
1. through-type 4.0 people's wells of the communication of a concreting, comprise that cross section is people's well basis (1) of rectangle, people's well well bore (2), the well lid (7) of well head on people's well lamina tecti (4) and sealing people well lamina tecti, it is characterized in that: the material of described people's well is cast-in-situ steel reinforced concrete, people's well basis (1) has drain hole (3) above, the inside on people's well basis (1) people's well reinforcement foundation of evenly arranging, described people's well well bore (2) is cast on people's well basis (1), the hollow column structure being surrounded by four sides body of wall, on the inside perpendicular of every face wall body, be furnished with the well bore reinforcing bar (5) of double-layer double-direction, on one group of relative metope, have corresponding cable punching hole (1.1), in the size of described people's well, path length is 4.0 meters, wide is 2.0 meters.
2. through-type 4.0 people's wells of the communication of concreting according to claim 1, it is characterized in that: described people's well basis (1) is split cast structure with people's well well bore (2), base plate is arranged at the bottom on described people's well basis (1), on base plate, surrounding is connected with wall pier, the upper pre-buried hanger (8) that is connected with in described people's well basis (1).
3. through-type 4.0 people's wells of the communication of concreting according to claim 2, is characterized in that: described people's well reinforcement foundation comprises the wall pier reinforcing bar (1.2) of the double-layer double-direction of evenly arranging on evenly arrange on the base plate interior horizontal plane on people's well basis (1) baseplate reinforcing bar (1.1) of double-layer double-direction and the wall pier inside perpendicular on people's well basis (1).
4. the through-type 4.0 people's wells of the communication of concreting according to claim 3, is characterized in that: in described wall pier reinforcing bar (1.2), vertical steel bar preassembling is embedded in the base plate on people's well basis (1).
5. a job practices for the through-type 4.0 people's wells of communication of the concreting as described in one of claim 1-4, is characterized in that, concrete steps are as follows:
Step 1, measures at people's well construction scene, setting-out;
Step 2, excavation people well foundation ditch;
Step 3, colligation people well reinforcement foundation;
Step 4, assembled people's well foundation forms, and foreign material in template are cleaned out;
Step 5, builds the underplate concrete and the wall pier concrete of building 20 centimetres of people's wells bases (1) on 10 centimetres of people's well bases (1), and reserve drain hole (3) on people's well basis (1);
Step 6, the inner vertical wall pier reinforcing bar (1.2) in people's well basis (1) exposes people's well basis (1), reserves toothing;
Step 7, carries out basic maintenance, forms coagulation natives well bases (1);
Step 8, removes people's well foundation forms;
Step 9, by well bore reinforcing bar (2.2) colligation on the toothing of wall pier reinforcing bar (1.2);
Step 10, at well bore reinforcing bar (2.2) assembled people's well well bore support shuttering around;
Step 11, builds the concrete of people's well well bore, concussion compacting simultaneously, reserves cable punching hole (2.1) on people's well well bore (2);
Step 12, carries out well bore maintenance, forms coagulation natives' well well bores (2);
Step 13, removes people's well well bore support shuttering;
Step 14, at people's well well bore medial shaft to parallel interval installing cables angle iron bracket (5);
Step 15, at the upper supporting plate that sets up cable of installing of cable angle iron bracket (5);
Step 10 six, covers coagulation natives well lamina tecti (4), and people's well lamina tecti (4) and the seam of people's well well bore (2) are done to impervious processing;
Step 10 seven, carries out well limit and fills out sand;
Step 10 eight, lays walling crib (9) and well lid (7) is installed in the place, hole on people's well lamina tecti.
6. the job practices of the through-type 4.0 people's well cast-in-situ concretes of communication according to claim 3, is characterized in that: in described step 5, be embedded with hanger (8) on people's well basis.
7. the job practices of the through-type 4.0 people's wells of the communication of concreting according to claim 4, is characterized in that: described people's well basis built after by hanger (8) handling to the people's well foundation ditch digging.
8. the job practices of the through-type 4.0 people's wells of the communication of concreting according to claim 5, it is characterized in that: about described people's well basis is divided into, two parts winch in the people's well foundation ditch digging after building respectively, the horizontal reinforcing bar of people's well basic internal of two parts in described left and right leaves toothing, in people's well foundation ditch, two-part reinforcing bar toothing is interlocked and docks, also carries out at the scene the joint of two parts.
9. the job practices of the through-type 4.0 people's wells of the communication of concreting according to claim 3, is characterized in that: the degree of depth of described drain hole (3) is 200 millimeters～250 millimeters.
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| CN104099946A (en) * | 2014-06-20 | 2014-10-15 | 广州市市政工程设计研究院 | Novel jacking pipe intersegment overhaul well |
| CN110858707A (en) * | 2018-08-24 | 2020-03-03 | 深圳市德春水电工程有限公司 | Construction method of distribution transformer heavy-load engineering |
| CN114150703A (en) * | 2021-11-12 | 2022-03-08 | 湖南省安成润和商业管理有限责任公司 | Fully-concealed inspection well and construction method thereof |
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| CN114150703A (en) * | 2021-11-12 | 2022-03-08 | 湖南省安成润和商业管理有限责任公司 | Fully-concealed inspection well and construction method thereof |
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| CN103541372B (en) | 2015-05-20 |
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