CN111305260A - Construction method for drainage of underground comprehensive pipe gallery through canal - Google Patents

Construction method for drainage of underground comprehensive pipe gallery through canal Download PDF

Info

Publication number
CN111305260A
CN111305260A CN201911203812.5A CN201911203812A CN111305260A CN 111305260 A CN111305260 A CN 111305260A CN 201911203812 A CN201911203812 A CN 201911203812A CN 111305260 A CN111305260 A CN 111305260A
Authority
CN
China
Prior art keywords
bailey
water
steel
canal
construction
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.)
Pending
Application number
CN201911203812.5A
Other languages
Chinese (zh)
Inventor
郭志国
刘凯
张桂军
白尧尧
车二平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China First Metallurgical Group Co Ltd
Original Assignee
China First Metallurgical Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China First Metallurgical Group Co Ltd filed Critical China First Metallurgical Group Co Ltd
Priority to CN201911203812.5A priority Critical patent/CN111305260A/en
Publication of CN111305260A publication Critical patent/CN111305260A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/10Tunnels 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B1/00Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains

Abstract

The invention provides a construction method for drainage of a river channel through an underground comprehensive pipe gallery, which is characterized by comprising the following steps: step 1, supporting a foundation pit: arranging a plurality of cast-in-place piles on two sides of the pipe gallery foundation pit from inside to outside, wrapping the cast-in-place piles with high-pressure jet grouting piles, and casting crown beams at the tops of the cast-in-place piles; step 2, constructing a steel conduit and a bailey truss support system: constructing a water steel guide pipe and a Bailey frame support at the parallel position of the foundation pit passing through the original canal; step 3, channel diversion: and (3) constructing flow guide channels at two ends of the water passing steel guide pipe in an extending way, making drainage butt joint and water-proof measures between the flow guide channels and the water passing steel guide pipe, then guiding the original canal to the flow guide channels and the water passing steel guide pipe after the water injection test of the water passing steel guide pipe and the flow guide channel is passed, and then plugging two ends of the original canal, thereby realizing the safe flow guide of the canal. The drainage steel catheter is supported by the bailey frames, has strong bearing capacity, can bear a plurality of pipelines and simultaneously feed water, has stable integral operation, and provides a good construction environment for the construction of a lower pipe gallery.

Description

Construction method for drainage of underground comprehensive pipe gallery through canal
Technical Field
The invention belongs to the technical field of underground comprehensive pipe galleries, and particularly relates to a construction method for river and canal penetration drainage of an underground comprehensive pipe gallery.
Background
With the continuous promotion of the urbanization process, the application of the underground comprehensive pipe gallery in urban municipal construction is more and more favored by urban planning designers. However, the underground comprehensive pipe gallery has a large related range and is often subjected to engineering environments such as roads, pipelines, canals and the like. The excavation of a foundation pit penetrating through a canal pipe gallery is a common construction problem in construction, and particularly when the water quantity of a canal is large and the canal is wide, the diversion construction difficulty is further increased.
The conventional method for solving the problems is to divide a comprehensive pipe gallery into two sections for construction, build a drainage channel and a cofferdam on the upper part of the pipe gallery after the first section of the pipe gallery is built, keep the canal through the drainage channel, and then carry out the construction of a second section of the pipe gallery structure. Practice proves that on-site plane coordination is required before diversion construction, land acquisition, removal and change influence of factors such as line towers along the drainage channels, building structures and ponds can be involved, construction period is greatly occupied, even engineering downtime and construction period delay are caused, or original design scheme adjustment is carried out when coordination is not feasible. Meanwhile, the drainage channel construction has the problems of longer length, higher manufacturing cost, low construction efficiency, poor stability and the like, most of the drainage channel and cofferdam materials are not suitable for circulation, and the waste is very large.
The invention provides a construction method for drainage of an underground comprehensive pipe gallery through a canal, which can effectively solve the practical problems of high coordination difficulty, low construction efficiency, long construction period, poor safety stability, high manufacturing cost, low material recovery rate and the like of the canal drainage when the water flow of a common canal is large, and the canal is drained from the upstream to the downstream by erecting a support bailey frame and a water pipe on the upper part of a foundation pit of the pipe gallery.
Disclosure of Invention
Aiming at the problems in the prior art, the technical scheme adopted by the invention for solving the problems in the prior art is as follows:
a construction method for drainage of a river channel through an underground comprehensive pipe gallery is characterized by comprising the following steps:
step 1, supporting a foundation pit: in order to ensure the water blocking effect of the ditch-penetrating foundation pit and the requirement of the later-stage Bailey truss on the supporting bearing capacity, the foundation pit supporting type is that a plurality of cast-in-place piles are arranged on two sides of the pipe gallery foundation pit from inside to outside, high-pressure jet grouting piles are wrapped outside the cast-in-place piles, and crown beams are cast on the tops of the cast-in-place piles;
step 2, constructing a steel conduit and a bailey truss support system: constructing a water passing steel pipe and a Bailey frame support at the parallel position of the foundation pit passing through the original canal, wherein the Bailey frame support is arranged at the top of the crown beam, and the water passing steel pipe is arranged above the Bailey frame support;
step 3, channel diversion: and (3) constructing flow guide channels at two ends of the water passing steel guide pipe in an extending way, making drainage butt joint and water-proof measures between the flow guide channels and the water passing steel guide pipe, then guiding the original canal to the flow guide channels and the water passing steel guide pipe after the water injection test of the water passing steel guide pipe and the flow guide channel is passed, and then plugging two ends of the original canal, thereby realizing the safe flow guide of the canal.
The bailey truss support is formed by splicing a plurality of independent bailey truss units, each independent bailey truss unit is fixedly connected through a connecting rod, each independent bailey truss unit comprises a plurality of vertical bailey pieces arranged side by side, the plurality of single bailey pieces are fixedly connected through a support frame, the top of each independent bailey truss unit is provided with a pair of angle steel, a water passing steel pipe is fixed between the two angle steel, the bottom of each angle steel is welded with the panel, the lower surface of the panel is provided with a base plate, the panel is connected and transited with the top of the bailey piece through reinforcing chords, the panel, the base plate and the top of the bailey piece are fixedly connected through bolts, and the bottom of the bailey piece is connected and transited with the top of the.
After the Bailey frames are integrally assembled, the Bailey frames are placed to the pre-placing positions of the tops of the supporting pile crown beams by a crane, and the number of Bailey pieces to be assembled is determined by the number of the Bailey frames for erecting the steel guide pipes and the width of the foundation pit needing to cross the pipe gallery; if different sections or other projects of the same project meet similar construction problems, the bailey frames are integrally disassembled and are transported to a construction area together with the steel guide pipes to be installed and used again.
The distance between two angle steels at the top of each independent Bailey truss unit is adapted to the outer diameter of the water passing steel guide pipe, a plurality of water passing steel guide pipes can be longitudinally arranged, and the vertical length of the angle steels is consistent with the height of the vertically arranged steel guide pipes.
The reinforcing chord member comprises an upper reinforcing chord member and a lower reinforcing chord member, the upper reinforcing chord member and the lower reinforcing chord member are arranged in parallel along the length direction of the steel guide pipe, the upper reinforcing chord member and the lower reinforcing chord member are welded and fixed with a base plate and a Bailey piece, and the lower reinforcing chord member and the outer side wall of the Bailey piece and the top surface of the crown beam are welded and fixed with each other.
The bottom of the Bailey sheet and the crown beam are further fixed through limit buckles, the limit buckle comprises two vertical angle steels which are positioned at the joint of the outer side of the lower reinforcing chord and the crown beam and are vertically welded with the top of the crown beam, and a transverse angle steel is vertically welded between the two vertical angle steels for fixation.
The diversion channel is characterized in that an anti-seepage geomembrane is laid after the diversion channel is excavated in the earth, a water guide wall is built on a geomembrane surface layer close to the end part of the water passing steel guide pipe, and the water guide wall is an additional wall body which is built on the diversion channel in a splayed shape and connected with the diversion channel and the water passing steel guide pipe.
And plain spraying concrete with the thickness of 80mm on the geomembrane surface layer, wherein the spraying anchor layer is butted with the water guide wall to prevent water seepage.
Mounting holes are reserved in advance at the positions, needing to be connected, of all components in the bailey truss supporting system, and the bailey truss supporting system and the steel guide pipe are subjected to sand blasting and rust removing and are brushed with antirust paint.
The invention has the following advantages:
1) the drainage steel guide pipe is supported by the bailey frames, so that the assembly is simple, the bearing capacity is high, a plurality of pipelines can be borne, water can be simultaneously introduced, deformation is not generated in the long-term construction operation process, the whole operation of the drainage device is stable, and a good construction environment is provided for the construction of a lower pipe gallery;
2) the independent bailey frames are connected through connecting rods (channel steel), so that the stability of the bailey frames is improved, and the safety and reliability are greatly improved;
3) the angle steel is welded on the panel for fixing the steel guide pipe, so that the steel guide pipe is convenient and reliable;
4) the Bailey truss supporting body system is integrally hoisted and installed on the crown beam after being assembled in a field, is convenient to disassemble, is beneficial to transportation, can be repeatedly used, saves construction cost and improves construction efficiency.
Drawings
FIG. 1 is a vertical view of a bailey truss of the present invention;
FIG. 2 is a cross-sectional view taken at 2-2 of FIG. 1;
FIG. 3 is a cross-sectional view taken along line 1-1 of FIG. 1;
FIG. 4 is a detail view of A in FIG. 3;
FIG. 5 is a detail view of B in FIG. 3;
FIG. 6 is a schematic view of a backing plate B;
wherein: 1-angle steel; 2-a steel conduit; 3-curtain piles; 4-a crown beam; 5-filling piles; 6-a support frame; 7-reinforcing chord members; 8-beret; 9-a panel; 10-connecting rod, 12- limit buckle; 13-backing plate, 14-bolt, 15-mounting hole.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings, and as shown in fig. 1-6, the construction method for the drainage of the canal through the underground comprehensive pipe gallery comprises the following steps:
step 1, supporting a foundation pit: in order to ensure the water blocking effect of the ditch-penetrating foundation pit and the requirement of the later-stage Bailey truss on the supporting bearing capacity, the foundation pit supporting type is that a plurality of cast-in-place piles 5 are arranged on two sides of the pipe gallery foundation pit from inside to outside, high-pressure jet grouting piles 3 are wrapped outside the cast-in-place piles 5, and crown beams 4 are poured on the tops of the cast-in-place piles 5;
step 2, constructing the steel guide pipe 2 and the bailey truss support system: the water passing steel pipe 2 and the Bailey frame support are built at the parallel position of the foundation pit passing through the original canal, the Bailey frame support is arranged at the top of the crown beam 4, and the water passing steel pipe 2 is arranged above the Bailey frame support.
Step 3, channel diversion: and (3) constructing flow guide channels at two ends of the water passing steel guide pipe in an extending way, making drainage butt joint and water-proof measures between the flow guide channels and the water passing steel guide pipe, then guiding the original canal to the flow guide channels and the water passing steel guide pipe 2 after the water injection test of the water passing steel guide pipe and the flow guide channels passes, and then plugging two ends of the original canal, thereby realizing the safe flow guide of the canal.
The bailey truss support is formed by splicing a plurality of independent bailey truss units, each independent bailey truss unit is fixedly connected through a connecting rod 10, each independent bailey truss unit comprises a plurality of vertical bailey pieces arranged side by side, the plurality of single bailey pieces are fixedly connected through a support frame 6, the top of each independent bailey truss unit is provided with a pair of angle steel, a water passing steel pipe is fixed between the two angle steel, the bottom of each angle steel is welded with a panel 9, a base plate 13 is arranged on the lower surface of the panel, the panel 9 and the top of the bailey pieces are connected and transited through reinforcing chords 7, the panel 9, the base plate 13 is fixedly connected with the top of the bailey pieces through bolts 14 in sequence, and the bottom of the bailey pieces and the top of the crown beams are connected.
After the Bailey frames are integrally assembled, the Bailey frames are placed to the pre-placing positions of the tops of the supporting pile crown beams 4 by a crane, and the number of the Bailey pieces to be assembled is determined by the number of the Bailey frames for erecting the steel guide pipes 2 and the width of the foundation pit needing to cross the pipe gallery; if different sections or other projects of the same project meet similar construction problems, the bailey frames are integrally disassembled and are transported to a construction area together with the steel guide pipes to be installed and used again.
The distance between two angle steels at the top of each independent Bailey truss unit is adapted to the outer diameter of the water passing steel guide pipe, the water passing steel guide pipes can be longitudinally arranged in a plurality, and the vertical length of the angle steels is consistent with the height of the vertically arranged steel guide pipes.
The reinforcing chord 7 comprises an upper reinforcing chord and a lower reinforcing chord, the upper reinforcing chord and the lower reinforcing chord are arranged in parallel along the length direction of the steel guide pipe 2, the upper reinforcing chord 7 and the lower reinforcing chord are welded and fixed with the base plate 13 and the Bailey sheet 8, and the lower reinforcing chord 7 and the outer side wall of the Bailey sheet and the top surface of the top beam 4 are welded and fixed.
The bottom of each Bailey sheet and the crown beam are further fixed through limiting buckles 12, each limiting buckle comprises two vertical angle steels which are positioned at the joint of the outer side of the lower reinforcing chord and the crown beam and are vertically welded with the top of the crown beam, and a transverse angle steel is vertically welded between the two vertical angle steels for fixation.
The diversion channel is characterized in that an anti-seepage geomembrane is laid after the diversion channel is excavated in the earth, a water guide wall is built on a geomembrane surface layer close to the end part of the water passing steel guide pipe, and the water guide wall is an additional wall body which is built on the diversion channel in a splayed shape and connected with the diversion channel and the water passing steel guide pipe.
And spraying concrete with the thickness of 80mm on the geomembrane surface layer, and butting the spraying anchor layer with the water guide wall to prevent water seepage.
Mounting holes are reserved in advance at the positions of all components needing to be connected in the Bailey truss supporting system, and the Bailey truss supporting system and the steel guide pipe are subjected to sand blasting and rust removing and are brushed with antirust paint.
The scope of protection is not limited to the embodiments described above, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims (8)

1. A construction method for drainage of a river channel through an underground comprehensive pipe gallery is characterized by comprising the following steps:
step 1, supporting a foundation pit: in order to ensure the water blocking effect of the ditch-penetrating foundation pit and the requirement of the later-stage Bailey truss on the supporting bearing capacity, the foundation pit supporting type is that a plurality of cast-in-place piles are arranged on two sides of the pipe gallery foundation pit from inside to outside, high-pressure jet grouting piles are wrapped outside the cast-in-place piles, and crown beams are cast on the tops of the cast-in-place piles;
step 2, constructing a steel conduit and a bailey truss support system: constructing a water passing steel pipe and a Bailey frame support at the parallel position of the foundation pit passing through the original canal, wherein the Bailey frame support is arranged at the top of the crown beam, and the water passing steel pipe is arranged above the Bailey frame support;
step 3, channel diversion: and (3) constructing flow guide channels at two ends of the water passing steel guide pipe in an extending way, making drainage butt joint and water-proof measures between the flow guide channels and the water passing steel guide pipe, then guiding the original canal to the flow guide channels and the water passing steel guide pipe after the water injection test of the water passing steel guide pipe and the flow guide channel is passed, and then plugging two ends of the original canal, thereby realizing the safe flow guide of the canal.
2. The construction method for the underground comprehensive pipe gallery river and canal drainage according to claim 1, characterized in that: the bailey truss support is formed by splicing a plurality of independent bailey truss units, each independent bailey truss unit is fixedly connected through a connecting rod, each independent bailey truss unit comprises a plurality of vertical bailey pieces arranged side by side, the plurality of single bailey pieces are fixedly connected through a support frame, the top of each independent bailey truss unit is provided with a pair of angle steel, a water passing steel pipe is fixed between the two angle steel, the bottom of each angle steel is welded with the panel, the lower surface of the panel is provided with a base plate, the panel is connected and transited with the top of the bailey piece through reinforcing chords, the panel, the base plate and the top of the bailey piece are fixedly connected through bolts, and the bottom of the bailey piece is connected and transited with the top of the.
3. The construction method for the underground comprehensive pipe gallery river and canal drainage according to claim 2, characterized in that: the distance between two angle steels at the top of each independent Bailey truss unit is adapted to the outer diameter of the water passing steel guide pipe, a plurality of water passing steel guide pipes can be longitudinally arranged, and the vertical length of the angle steels is consistent with the height of the vertically arranged steel guide pipes.
4. The construction method for the underground comprehensive pipe gallery river and canal drainage according to claim 2, characterized in that: the reinforcing chord member comprises an upper reinforcing chord member and a lower reinforcing chord member, the upper reinforcing chord member and the lower reinforcing chord member are arranged in parallel along the length direction of the steel guide pipe, the upper reinforcing chord member and the lower reinforcing chord member are welded and fixed with a base plate and a Bailey piece, and the lower reinforcing chord member and the outer side wall of the Bailey piece and the top surface of the crown beam are welded and fixed with each other.
5. The construction method for the underground comprehensive pipe gallery river and canal drainage according to claim 2, characterized in that: the bottom of the Bailey sheet and the crown beam are further fixed through limit buckles, the limit buckle comprises two vertical angle steels which are positioned at the joint of the outer side of the lower reinforcing chord and the crown beam and are vertically welded with the top of the crown beam, and a transverse angle steel is vertically welded between the two vertical angle steels for fixation.
6. The construction method for the underground comprehensive pipe gallery river and canal drainage according to claim 1, characterized in that: the diversion channel is characterized in that an anti-seepage geomembrane is laid after the diversion channel is excavated in the earth, a water guide wall is built on a geomembrane surface layer close to the end part of the water passing steel guide pipe, and the water guide wall is an additional wall body which is built on the diversion channel in a splayed shape and connected with the diversion channel and the water passing steel guide pipe.
7. The construction method for the underground comprehensive pipe gallery river and canal drainage according to claim 1, characterized in that: and plain spraying concrete with the thickness of 80mm on the geomembrane surface layer, wherein the spraying anchor layer is butted with the water guide wall to prevent water seepage.
8. The construction method for the underground comprehensive pipe gallery river and canal drainage according to claim 1, characterized in that: mounting holes are reserved in advance at the positions, needing to be connected, of all components in the bailey truss supporting system, and the bailey truss supporting system and the steel guide pipe are subjected to sand blasting and rust removing and are brushed with antirust paint.
CN201911203812.5A 2019-11-29 2019-11-29 Construction method for drainage of underground comprehensive pipe gallery through canal Pending CN111305260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911203812.5A CN111305260A (en) 2019-11-29 2019-11-29 Construction method for drainage of underground comprehensive pipe gallery through canal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911203812.5A CN111305260A (en) 2019-11-29 2019-11-29 Construction method for drainage of underground comprehensive pipe gallery through canal

Publications (1)

Publication Number Publication Date
CN111305260A true CN111305260A (en) 2020-06-19

Family

ID=71150658

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911203812.5A Pending CN111305260A (en) 2019-11-29 2019-11-29 Construction method for drainage of underground comprehensive pipe gallery through canal

Country Status (1)

Country Link
CN (1) CN111305260A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111021408A (en) * 2019-12-13 2020-04-17 中国一冶集团有限公司 Construction method of water-stopping support system in pipe gallery river reach operation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180163358A1 (en) * 2016-12-09 2018-06-14 Dietzler Construction Corporation Water diversion system, method and apparatus
CN108797404A (en) * 2018-06-21 2018-11-13 中国十七冶集团有限公司 A kind of underground pipe gallery is across river section river water flow guiding structure and its construction method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180163358A1 (en) * 2016-12-09 2018-06-14 Dietzler Construction Corporation Water diversion system, method and apparatus
CN108797404A (en) * 2018-06-21 2018-11-13 中国十七冶集团有限公司 A kind of underground pipe gallery is across river section river water flow guiding structure and its construction method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
交通部第一公路工程局: "《桥涵(下册)》", 30 November 1985, 人民交通出版社 *
王常才: "《桥涵施工技术》", 31 August 2002, 人民交通出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111021408A (en) * 2019-12-13 2020-04-17 中国一冶集团有限公司 Construction method of water-stopping support system in pipe gallery river reach operation

Similar Documents

Publication Publication Date Title
KR100438794B1 (en) Construction method for three arch excavation tunnel
US8425153B1 (en) Arched culvert and method of manufacture
CN202559384U (en) Prefabricated assembled pipe-jacking working well
WO2017081990A1 (en) Precast structure, and construction method for underground structures
CN111305260A (en) Construction method for drainage of underground comprehensive pipe gallery through canal
CN108930284A (en) A kind of assembled barrier wall structure and earth-filling method
US8425152B1 (en) Arched culvert and method of manufacture
RU2144637C1 (en) Pipe line for transportation of fluid medium and method of its erection
RU2265692C1 (en) Method of pipe culvert repair under embankment
KR200311976Y1 (en) Structure about center wall of three arch tunnel excavation method and steel sheeting
CN212714825U (en) Reinforced concrete urban river structure
CN105568943A (en) Riverway truss type anchor pulling anti-floating device and construction method thereof
CN110952993B (en) Semi-assembly type pipe curtain structure based on steel reinforced concrete connection and construction process
CN208328982U (en) A kind of assembled barrier wall structure
CN209652936U (en) A kind of artificial push pipe inspection shaft steel plate box pattern foundation pit supporting structure
CN111794340B (en) Drainage pipeline structure and construction method thereof
CN111005320B (en) Pipeline laying method
CN211036963U (en) Cast-in-place and prefabricated underground continuous wall that combines together lead wall
CN210262915U (en) Integrated configuration of revetment pipe groove plank road
CN212337307U (en) Arch cover structure of tunnel lower-penetrating river channel
CN209989781U (en) Novel structure of silty-fine sand stratum flood control dam
CN110117959B (en) Construction method for foundation pit support near river
CN209941693U (en) Open cut interval support system of crossing river
CN210216193U (en) Assembled integral culvert
CN211143108U (en) Arch dam foundation structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination