CN110778341A - Backfill construction method for construction vertical shaft and construction transverse passage - Google Patents
Backfill construction method for construction vertical shaft and construction transverse passage Download PDFInfo
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- CN110778341A CN110778341A CN201911059555.2A CN201911059555A CN110778341A CN 110778341 A CN110778341 A CN 110778341A CN 201911059555 A CN201911059555 A CN 201911059555A CN 110778341 A CN110778341 A CN 110778341A
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- backfilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention relates to a construction vertical shaft and a backfill construction method of a construction transverse channel.A primary support structure is constructed on the inner wall of the construction transverse channel, the top of the primary support structure is a vault, the bottom of the primary support structure is an inverted arch, and the end part of the primary support structure is provided with an end sealing wall and a temporary inverted arch which is connected with the end sealing wall and divides the construction transverse channel up and down; the method comprises the following steps: dismantling a temporary inverted arch of the construction transverse channel; building a partition wall opposite to the end sealing wall on the inverted arch, separating the partition wall in the construction transverse channel to form a current backfill section, backfilling the current backfill section with plain soil, reserving a distance between the backfilled plain soil and the arch crown to form a backfill space, and building the partition wall until the partition wall is closely attached to the arch crown; reserving an ash inlet at the top of the partition wall, and backfilling a backfill space with concrete through the ash inlet; and backfilling the construction vertical shaft with plain soil. The invention solves the problems that plain soil close to the vault of the transverse channel cannot be tamped, the backfilling compactness cannot be guaranteed, sedimentation after backfilling is possible, and the backfilling construction difficulty of the whole transverse channel is high directly in the prior art.
Description
Technical Field
The invention relates to the field of building construction, in particular to a backfill construction method for a construction vertical shaft and a construction transverse channel.
Background
In the construction process of urban subway mine method tunnels, due to geographical conditions and construction conditions, a method of constructing a construction vertical shaft and a construction transverse passage firstly and then constructing a main double-line tunnel to two sides from the construction transverse passage is usually adopted, the construction transverse passage is usually a vault straight wall upper and lower double-layer pilot tunnel and is additionally provided with a temporary inverted arch structure (the construction transverse passage is usually only used as a primary support structure, and the support form is steel grating and sprayed concrete), and the main tunnel is usually a standard horseshoe structure (the main tunnel comprises a primary support structure and a secondary lining). And after the primary support and the secondary lining of the main tunnel are completely constructed, backfilling is required to be carried out on the construction vertical shaft and the construction transverse channel.
The traditional backfilling construction method is to directly backfill and tamp the whole transverse passage by adopting plain soil after the temporary inverted arch is removed. However, the method can not tamp the plain soil close to the vault of the transverse channel, can not ensure the backfilling compactness, can possibly cause ground settlement after backfilling, and has very large difficulty in directly backfilling the whole transverse channel.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a backfill construction method for a construction vertical shaft and a construction transverse channel, and solves the problems that plain soil close to the vault of the transverse channel cannot be tamped, the backfill compactness cannot be ensured, and the problems of settlement after backfilling and large backfill construction difficulty of the whole transverse channel are likely to exist in the prior art.
The technical scheme for realizing the purpose is as follows:
the invention provides a construction vertical shaft and a backfill construction method of a construction transverse channel, wherein a primary support structure is constructed on the inner wall of the construction transverse channel, the top of the primary support structure is a vault, the bottom of the primary support structure is an inverted arch, an end sealing wall is arranged at the end part of the primary support structure, and the primary support structure further comprises a temporary inverted arch which is connected with the end sealing wall and divides the construction transverse channel into an upper part and a lower part; the backfill construction method comprises the following steps:
dismantling a temporary inverted arch of the construction transverse channel;
building a partition wall opposite to an end sealing wall on an inverted arch, separating the partition wall in the construction transverse channel to form a current backfill section, backfilling the current backfill section with plain soil, backfilling the plain soil until a distance is reserved between the backfill section and the arch crown to form a backfill space, and building the partition wall until the partition wall is closely attached to the arch crown;
reserving an ash inlet at the top of the partition wall, and backfilling the backfill space with concrete through the ash inlet; and
and backfilling the construction vertical shaft with plain soil.
The backfill construction method for the construction vertical shaft and the construction transverse passage is further improved in that the backfill construction method further comprises the following steps:
and providing a grouting floral tube, fixedly arranging the grouting floral tube on the vault and correspondingly positioning the grouting floral tube in the backfill space before the partition wall is built until the partition wall is closely attached to the vault, and extending the end part of the grouting floral tube out of the backfill space to form a grouting opening.
The backfill construction method for the construction vertical shaft and the construction transverse channel is further improved in that cement slurry is injected into the backfill space through the grouting port of the grouting perforated pipe after concrete backfill is completed.
The construction vertical shaft and the backfill construction method of the construction transverse passage are further improved in that the construction transverse passage is divided into a plurality of sections, partition walls are constructed at each section position in sequence from the end sealing wall to the construction vertical shaft direction to form corresponding backfill sections in a separated mode, and each backfill section is backfilled by adopting the backfill construction method in sequence.
The backfill construction method for the construction vertical shaft and the construction transverse passage is further improved in that the backfill construction method further comprises the following steps:
when the part of the construction transverse channel close to the construction vertical shaft is backfilled, the construction transverse channel and the construction vertical shaft are backfilled by using plain soil, and the backfilling is carried out until a distance is reserved between the backfilled part and the vault;
building a retaining wall on the backfilled plain soil until the retaining wall is closely attached to the vault, so that a new backfilling space is formed on the inner side of the retaining wall; and
and reserving a pouring opening on the retaining wall, and backfilling the new backfilling space with concrete through the pouring opening.
The backfill construction method for the construction vertical shaft and the construction transverse passage is further improved in that the backfill construction method further comprises the following steps:
and providing a new grouting floral tube, fixedly arranging the new grouting floral tube on the vault and correspondingly positioning the new grouting floral tube in the new backfilling space before the partition wall is built until the partition wall is closely attached to the vault, and extending the end part of the new grouting floral tube out of the new backfilling space to form a new grouting opening.
The backfill construction method for the construction vertical shaft and the construction transverse passage is further improved in that the backfill construction method further comprises the following steps:
and after the concrete backfilling is finished, injecting cement slurry into the new backfilling space through the new grouting opening of the new grouting perforated pipe.
The backfill construction method for the construction vertical shaft and the construction transverse passage is further improved in that the backfill construction method further comprises the following steps:
backfilling the construction vertical shaft with plain soil to be flush with the bottom surface of a locking collar beam of the construction vertical shaft; and
and breaking the locking collar beam, and backfilling the locking collar beam to the ground by using plain soil.
The backfill construction method for the construction vertical shaft and the construction transverse passage is further improved in that a partition wall arranged opposite to a sealing end wall is built on an inverted arch, a current backfill section is formed in the construction transverse passage by utilizing the partition wall in a separated mode, and the current backfill section is backfilled by plain soil, and comprises the following steps:
building a partition wall with a set height on the inverted arch, backfilling the current backfilling section to the current height of the partition wall by using plain soil, and tamping the plain soil;
and then, building another partition wall with a set height upwards, backfilling the partition wall to the current height by using plain soil, tamping the plain soil, and repeating the steps until the plain soil is backfilled until a distance is reserved between the backfilled plain soil and the vault to form a backfilling space.
The backfill construction method for the construction vertical shaft and the construction transverse passage has the beneficial effects that:
according to the invention, concrete is poured on the backfilled plain soil through the reserved ash inlet, and the plain soil is combined with the concrete, so that the problem that the plain soil close to the vault cannot be completely tamped when the plain soil is completely backfilled is solved, and the problems that the plain soil close to the vault of the transverse channel cannot be tamped, the backfilling compactness cannot be ensured, and the problems of sedimentation after backfilling and large backfilling construction difficulty of the whole transverse channel can be caused in the prior art are solved.
Drawings
FIG. 1 is a longitudinal section along the longitudinal direction of a construction transverse channel when the backfill construction method of the construction vertical shaft and the construction transverse channel is applied.
FIG. 2 is a longitudinal section along the horizontal direction of a construction transverse channel when the backfill construction method of the construction vertical shaft and the construction transverse channel is applied.
Fig. 3 is a cross-sectional view of the backfill construction method of the construction shaft and the construction cross-channel of the present invention when the construction shaft is backfilled to be level with the bottom of the collar beam.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, there is shown a longitudinal sectional view along a longitudinal direction of a construction cross passage when the backfill construction method of the construction vertical shaft and the construction cross passage of the present invention is applied. FIG. 2 is a longitudinal section along the horizontal direction of a construction transverse channel when the backfill construction method of the construction vertical shaft and the construction transverse channel is applied. Referring to fig. 1 and 2, a primary support structure is constructed on the inner wall of a construction transverse channel 1, the top of the primary support structure is a vault 10, the bottom of the primary support structure is an inverted arch 11, the end of the primary support structure is provided with an end-sealing wall 12, and the primary support structure further comprises a temporary inverted arch 13 which is connected to the end-sealing wall 12 and divides the construction transverse channel 1 into an upper part and a lower part; the backfill construction method comprises the following steps:
dismantling a temporary inverted arch 13 of the construction transverse channel;
building a partition wall 20 opposite to the end sealing wall 12 on an inverted arch 11, forming a current backfill section in the construction transverse channel 1 by utilizing the partition wall 20 in a separated mode, backfilling the current backfill section 30 with plain soil, reserving a distance between the backfilled plain soil 30 and an arch crown 10 to form a backfill space 40, and building the partition wall 20 until the partition wall is closely attached to the arch crown 10;
reserving an ash inlet 50 at the top of the partition wall 20, and backfilling the backfill space 40 with concrete through the ash inlet; and
and backfilling the construction vertical shaft 2 with plain soil.
As a preferred embodiment of the backfill construction method for the construction vertical shaft and the construction transverse passage, the construction transverse passage 1 is divided into a plurality of sections, partition walls 20 are constructed at each section position in sequence from the end wall 12 to the construction vertical shaft 2 to form corresponding backfill sections in a separated mode, and each backfill section is backfilled by adopting a backfill construction method in sequence.
The invention pours concrete on the backfilled plain soil through the reserved ash inlet, so as to avoid the defect that the plain soil close to the vault cannot be completely tamped when the plain soil is completely backfilled, and solve the problems that the plain soil close to the vault of the transverse channel cannot be tamped, the backfilling compactness cannot be ensured, and the problems of sedimentation after backfilling and large difficulty in directly backfilling the whole transverse channel in the prior art are solved.
Specifically, in the initial stage of construction, when the partition wall 20 closest to the closed end wall 12 is constructed, the space formed by the partition wall 20 and the closed end wall 12 is used as the current backfill section. And when the next partition wall 20 is constructed, the space formed by enclosing the next partition wall 20 and the partition wall 20 is used as the current backfill section, and by analogy, the partition wall 20 is constructed at each subsection position in sequence from the end sealing wall 12 to the construction shaft 2, and each section of the construction transverse passage 1 is backfilled by adopting a backfill construction method in sequence. Through the horizontal passageway of segmentation backfill construction, convenient construction just realizes closely knit backfill.
As a preferred embodiment of the backfill construction method for the construction shaft and the construction cross passage according to the present invention, the present invention further comprises providing a grouting floral tube 70, fixing the grouting floral tube 70 to the arch crown 10 and correspondingly positioned in the backfill space 40 before the masonry of the partition wall 20 to be closely attached to the arch crown 10, extending an end of the grouting floral tube 70 from the backfill space 40 to form a grouting port, and injecting cement slurry into the backfill space 40 through the grouting port of the grouting floral tube 70 outside the backfill space 40.
As a preferred embodiment of the backfill construction method of the construction vertical shaft and the construction horizontal passage of the present invention, cement slurry is injected into the backfill space 40 through the grouting port of the grouting floral tube 70 after completion of concrete backfill. There may be a void between the structure formed by backfilling the backfill space 40 with concrete through the mortar inlet and the primary support structure, which is not sufficiently dense. According to the invention, cement slurry is injected into the backfill space 40 through the grouting opening of the grouting floral tube 70, so that the gap between plain concrete and the primary support structure of the construction transverse channel 1 can be filled, and the construction transverse channel is compact.
Specifically, a plurality of steel bars 60 are embedded in the process of constructing the vault 10, and part of the steel bars 60 protrude out of the bottom surface of the vault 10; the grouting floral tube 70 is transversely attached to the bottom surface of the vault 10 and fixed to the plurality of steel bars 60, so that the grouting floral tube 70 is fixed.
In this embodiment, the reinforcing bars are welded to the steel grid of the primary support and exposed 10cm from the bottom surface of the arch when the primary support of the transverse channel 1 is applied. The grouting floral tube 70 is generally installed before the concrete 40 is poured after the backfilling of the plain soil is stopped, and the grouting floral tube 70 and the reinforcing steel bars 60 are welded and fixed during installation.
In the embodiment, backfill retreats from the end-sealing wall 12 of the construction transverse channel to the opening, and the length of each section is 10-15 m. The partition wall 20 is a brick-built wall, is built by clay bricks and masonry mortar, has the thickness of 500mm, and is constructed by horizontally placing reinforcing steel bars (the type of the reinforcing steel bars is generally phi 8 and the distance is 150mm) which are required to be implanted into a primary support structure of a construction transverse channel and are not less than 150 mm.
In the construction of backfilling the plain soil 30 after the partition wall 20 is constructed, the plain soil 30 is firstly backfilled in the construction transverse channel 1 from bottom to top and is tamped layer by layer until the distance from the top is 1.5m (the top is 1.5m and cannot be tamped), a backfilling space is formed, and plain concrete is poured in the residual backfilling space. And because concrete pouring cannot be completely compacted, cement slurry is injected into a backfill space through a grouting opening of the grouting floral tube 70 (a steel welding tube with a plurality of round holes) to fill up the gap between the C15 plain concrete and the primary support of the construction transverse channel.
As a preferred embodiment of the backfill construction method of the construction vertical shaft and the construction transverse passage, the invention further comprises: when the part of the construction transverse channel 1 close to the construction vertical shaft 2 is backfilled, the construction transverse channel 1 and the construction vertical shaft 2 are backfilled by using plain soil, and the backfilling is carried out until a distance is reserved between the backfilled construction transverse channel 1 and the vault 10; building the retaining wall 21 on the backfilled plain soil until the retaining wall is closely attached to the arch crown 10, so that a new backfilling space 41 is formed on the inner side of the retaining wall 21; and reserving a pouring opening 51 on the retaining wall, and backfilling the new backfilling space 41 with concrete through the pouring opening 51.
As a preferred embodiment of the backfill construction method for the construction vertical shaft and the construction transverse passage, the method further comprises the following steps: providing a new grouting floral tube 71, fixing the new grouting floral tube 71 on the vault 10 and correspondingly in the new backfilling space 41 before building the retaining wall 21 to be in close contact with the vault, and extending the end of the new grouting floral tube 71 out of the new backfilling space 41 to form a new grouting opening.
Specifically, a plurality of new steel bars 61 are pre-buried in the process of constructing the vault 10, and part of the new steel bars 61 protrudes out of the bottom surface of the vault 10; and before the retaining wall 21 is built to be closely attached to the vault, a new grouting floral tube 71 is provided, the new grouting floral tube 71 is transversely attached to the bottom surface of the vault and fixed to the new reinforcing steel bars 61, and the new grouting floral tube 71 is fixed.
As a preferred embodiment of the backfill construction method of the construction vertical shaft and the construction transverse passage, the invention further comprises: after completion of the concrete backfill, cement slurry is injected into the new backfill space 41 through the new injection port of the new injection floral tube 71. According to the invention, cement slurry is injected into the new backfill space 41 through the grouting opening of the new grouting floral tube 71, so that the gap between plain concrete and the primary support structure of the construction transverse channel 1 can be filled, and the construction transverse channel is compact.
Specifically, when the construction vertical shaft is backfilled, the joint part of the construction vertical shaft and the construction transverse channel, which is lower than the vault of the construction transverse channel by 1.5m, needs to be backfilled with plain soil together with the last section of the construction transverse channel and tamped layer by layer. And after the backfill of the last section of the transverse channel to be constructed of the rest part of the construction vertical shaft is finished and the concrete and grouting are finished, backfilling with plain soil and tamping layer by layer until the top is reached.
Referring to fig. 3, there is shown a cross-sectional view of the backfill construction method of the construction shaft and the construction cross channel of the invention when the construction shaft is backfilled to be level with the bottom of the shackle girts. As shown in fig. 1 to 3, the present invention further includes: backfilling the construction shaft with plain soil to be flush with the bottom surface of the locking collar beam 80 of the construction shaft 2; and breaking the collar beam 80 and then backfilling with plain soil to the ground.
As a preferred embodiment of the backfill construction method of the construction vertical shaft and the construction horizontal passage of the present invention, the method of constructing the partition wall 20 disposed opposite to the closing end wall 12 on the inverted arch 11, forming the current backfill section by partitioning the construction horizontal passage 1 using the partition wall 20, and backfilling the current backfill section with plain soil includes: building a partition wall 20 with a set height on the inverted arch, backfilling the current backfilling section to the current height of the partition wall 20 by using plain soil, and tamping the plain soil;
and then, building another partition wall 20 with a set height upwards, backfilling the partition wall to the current height by using plain soil, tamping the plain soil, and repeating the steps until the plain soil is backfilled until a distance is reserved between the backfilled plain soil and the vault to form a backfilling space.
Specifically, the partition wall 20 is built firstly, after the partition wall 20 is built to a certain height, the current backfill section is backfilled with plain soil and tamped layer by layer, then the partition wall 20 is built and then backfilled and tamped layer by layer, the partition wall 20 is always slightly higher than the tamped plain soil, and the backfilling is stopped when the plain soil is backfilled to a distance of 1.5m from the vault of the construction cross channel so as to form a backfill space. In the process, the plain soil is transported to the vicinity of the working surface through the construction vertical shaft and the construction transverse passage, and then is transported to the working surface across the partition wall 20 through the conveyor belt equipment.
The construction steps of the backfill construction method for the construction vertical shaft and the construction transverse channel provided by the invention when applied are specifically explained as follows:
dividing the construction cross channel into a plurality of sections (the length of each section is preferably 10-15 m) according to the actual situation; the construction vertical shaft is divided into two sections: the first section is a part lower than the vault of the construction cross channel by 1.5m, and the second section is a part lower than the vault of the construction cross channel by more than 1.5m and up to the ground.
The method comprises the following specific steps: firstly, the temporary inverted arch of the construction transverse channel is dismantled and the muck and the steel grating are transported outside.
And then beginning to backfill the first section of the construction cross channel. The construction method comprises the steps of building a partition wall, backfilling the construction transverse channel at the section with plain soil after the partition wall is built to a certain height, tamping in layers, then building the partition wall, backfilling and tamping in layers (the partition wall is slightly higher than the tamped plain soil all the time), and stopping when the tamped plain soil is backfilled to a distance of 1.5m from the vault of the construction transverse channel (the backfilled plain soil is conveyed to the position near an operation surface through a construction vertical shaft and the construction transverse channel and then is conveyed to the operation surface through a conveying belt device across the brick-built wall).
And then installing and fixing grouting floral tubes, building the partition wall to the vault of the construction transverse channel after the grouting floral tubes are installed and fixed, reserving a concrete pouring ash inlet, and backfilling the residual 1.5 meters at the top of the construction transverse channel at the section by using C15 plain concrete through the reserved concrete pouring ash inlet. And after the C15 plain concrete is poured to reach a certain strength, grouting is performed through the pre-embedded grouting pattern pipes to fill the gaps between the C15 plain concrete and the primary support structure of the construction transverse channel of the section.
After the cement paste of the last grouting step of the first section of construction transverse channel is initially set, the second section of construction transverse channel is backfilled, then the third section and the fourth section are backfilled in a retreating mode in sequence, … …, it needs to be noted that when the last section of construction transverse channel is backfilled (the joint of the construction transverse channel and the construction vertical shaft), tamping plain soil backfilling operation can be carried out simultaneously with the first section of construction vertical shaft for more convenience, and the brick wall building only needs to build the upper part 1.5m, and the part of partition wall below the vault of the construction transverse channel by 1.5m does not need to be built. And after the construction transverse channel is backfilled, backfilling the second construction vertical shaft with plain soil and compacting the construction vertical shaft layer by layer (the first construction vertical shaft and the last construction transverse channel are backfilled together).
And stopping backfilling until the backfilling is level with the bottom of the locking collar beam of the construction vertical shaft, breaking the locking collar beam at the moment, backfilling plain soil until the plain soil is level with the ground and tamped layer by layer after the locking collar beam is broken and cleared.
It should be noted that the backfill soil in the method should be sampled and measured for maximum dry volume weight and optimum water content before use, and compaction experiments are carried out to determine parameters such as control range of water content of the filler, thickness of the paved soil, compaction times and the like, and layered compaction is carried out during backfill construction, wherein the compaction degree is more than or equal to 93%.
The backfill construction method for the construction vertical shaft and the construction transverse passage has the beneficial effects that:
the invention pours concrete on the backfilled plain soil through the reserved ash inlet to make up the defect that the plain soil close to the vault cannot be completely tamped when the plain soil is completely backfilled, and solves the problems that the plain soil close to the vault of the transverse channel cannot be tamped, the backfilling compactness cannot be ensured, and the problems of sedimentation after backfilling and large difficulty in directly backfilling the whole transverse channel in the prior art.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (9)
1. A backfill construction method for a construction vertical shaft and a construction transverse channel is characterized in that a primary support structure is constructed on the inner wall of the construction transverse channel, the top of the primary support structure is a vault, the bottom of the primary support structure is an inverted arch, an end sealing wall is arranged at the end of the primary support structure, and the primary support structure further comprises a temporary inverted arch which is connected with the end sealing wall and divides the construction transverse channel into an upper part and a lower part; the backfill construction method is characterized by comprising the following steps:
dismantling a temporary inverted arch of the construction transverse channel;
building a partition wall opposite to an end sealing wall on an inverted arch, separating the partition wall in the construction transverse channel to form a current backfill section, backfilling the current backfill section with plain soil, backfilling the plain soil until a distance is reserved between the backfill section and the arch crown to form a backfill space, and building the partition wall until the partition wall is closely attached to the arch crown;
reserving an ash inlet at the top of the partition wall, and backfilling the backfill space with concrete through the ash inlet; and
and backfilling the construction vertical shaft with plain soil.
2. The backfill construction method for the construction shaft and the construction cross channel according to claim 1, further comprising:
and providing a grouting floral tube, fixedly arranging the grouting floral tube on the vault and correspondingly positioning the grouting floral tube in the backfill space before the partition wall is built until the partition wall is closely attached to the vault, and extending the end part of the grouting floral tube out of the backfill space to form a grouting opening.
3. The backfill construction method for construction shafts and construction cross-ways according to claim 2,
and after the concrete backfilling is finished, injecting cement slurry into the backfilling space through the grouting opening of the grouting perforated pipe.
4. The backfill construction method for construction shafts and construction cross-ways according to claim 1,
and dividing the construction transverse channel into a plurality of sections, constructing partition walls at each section position from the end wall to the construction vertical shaft in sequence to form corresponding backfill sections in a separated mode, and backfilling each backfill section by adopting the backfill construction method in sequence.
5. The backfill construction method for the construction shaft and the construction cross channel according to claim 1, further comprising:
when the part of the construction transverse channel close to the construction vertical shaft is backfilled, the construction transverse channel and the construction vertical shaft are backfilled by using plain soil, and the backfilling is carried out until a distance is reserved between the backfilled part and the vault;
building a retaining wall on the backfilled plain soil until the retaining wall is closely attached to the vault, so that a new backfilling space is formed on the inner side of the retaining wall; and
and reserving a pouring opening on the retaining wall, and backfilling the new backfilling space with concrete through the pouring opening.
6. The backfill construction method for the construction shaft and the construction cross channel according to claim 5, further comprising:
and providing a new grouting floral tube, fixedly arranging the new grouting floral tube on the vault and correspondingly positioning the new grouting floral tube in the new backfilling space before the partition wall is built until the partition wall is closely attached to the vault, and extending the end part of the new grouting floral tube out of the new backfilling space to form a new grouting opening.
7. The backfill construction method for the construction shaft and the construction cross channel according to claim 6, further comprising:
and after the concrete backfilling is finished, injecting cement slurry into the new backfilling space through the new grouting opening of the new grouting perforated pipe.
8. The backfill construction method for the construction shaft and the construction cross channel according to claim 5, further comprising:
backfilling the construction vertical shaft with plain soil to be flush with the bottom surface of a locking collar beam of the construction vertical shaft; and
and breaking the locking collar beam, and backfilling the locking collar beam to the ground by using plain soil.
9. The backfill construction method for construction shafts and construction cross-ways according to claim 1,
building a partition wall opposite to the end-sealing wall on an inverted arch, separating the partition wall in the construction transverse channel to form a current backfill section, and backfilling the current backfill section with plain soil, wherein the method comprises the following steps:
building a partition wall with a set height on the inverted arch, backfilling the current backfilling section to the current height of the partition wall by using plain soil, and tamping the plain soil; and
and then, building another partition wall with a set height upwards, backfilling the partition wall to the current height by using plain soil, tamping the plain soil, and repeating the steps until the plain soil is backfilled until a distance is reserved between the backfilled plain soil and the vault to form a backfilling space.
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| CN201911059555.2A CN110778341B (en) | 2019-11-01 | 2019-11-01 | Backfill construction method for construction vertical shaft and construction transverse passage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506316A (en) * | 2022-10-08 | 2022-12-23 | 中国电建集团成都勘测设计研究院有限公司 | Concrete backfill method for sealed space seepage shaft under high external water pressure |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939105A (en) * | 2014-03-24 | 2014-07-23 | 中铁工程设计咨询集团有限公司 | Construction method and structure for laying construction shaft above underground engineering |
| CN104047621A (en) * | 2013-03-14 | 2014-09-17 | 上海市城市建设设计研究总院 | Construction method of cross aisle with high cross section under excavation conditions of basement with small clear distance at top |
| CN104099943A (en) * | 2014-06-30 | 2014-10-15 | 中铁四局集团第四工程有限公司 | Underground diaphragm wall and deserted underground civil air defense engineering intersection processing method |
| CN105386770A (en) * | 2015-11-26 | 2016-03-09 | 中国建筑第六工程局有限公司 | Backfill crossing method for shield tunneling machine passing through middle air shaft |
| CN106049195A (en) * | 2016-05-27 | 2016-10-26 | 中铁三局集团有限公司 | Method for strengthening subgrade basement of existing high speed railway line |
| CN106968690A (en) * | 2017-04-20 | 2017-07-21 | 中冶建工集团有限公司 | The method for tunnel construction for soil property of caving in |
| CN107227794A (en) * | 2017-07-24 | 2017-10-03 | 武汉市人防建筑设计研究院 | A kind of air-raid shelter |
| CN107503765A (en) * | 2017-09-05 | 2017-12-22 | 绍兴文理学院 | Tunnel in cold area inverted arch earth-filling method |
| CN109098187A (en) * | 2018-08-24 | 2018-12-28 | 中国中元国际工程有限公司 | A kind of method of basement room heart backfilling material |
| CN109695248A (en) * | 2019-02-21 | 2019-04-30 | 中亿丰建设集团股份有限公司 | Foundation pit backfills construction method under a kind of lid excavation construction cover plate |
| CN109854257A (en) * | 2019-03-08 | 2019-06-07 | 中铁十二局集团有限公司 | Section piston air duct backfills shield station-crossing construction method |
| CN109882192A (en) * | 2019-02-26 | 2019-06-14 | 重庆交通建设(集团)有限责任公司 | TBM starting well shaft construction method |
-
2019
- 2019-11-01 CN CN201911059555.2A patent/CN110778341B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047621A (en) * | 2013-03-14 | 2014-09-17 | 上海市城市建设设计研究总院 | Construction method of cross aisle with high cross section under excavation conditions of basement with small clear distance at top |
| CN103939105A (en) * | 2014-03-24 | 2014-07-23 | 中铁工程设计咨询集团有限公司 | Construction method and structure for laying construction shaft above underground engineering |
| CN104099943A (en) * | 2014-06-30 | 2014-10-15 | 中铁四局集团第四工程有限公司 | Underground diaphragm wall and deserted underground civil air defense engineering intersection processing method |
| CN105386770A (en) * | 2015-11-26 | 2016-03-09 | 中国建筑第六工程局有限公司 | Backfill crossing method for shield tunneling machine passing through middle air shaft |
| CN106049195A (en) * | 2016-05-27 | 2016-10-26 | 中铁三局集团有限公司 | Method for strengthening subgrade basement of existing high speed railway line |
| CN106968690A (en) * | 2017-04-20 | 2017-07-21 | 中冶建工集团有限公司 | The method for tunnel construction for soil property of caving in |
| CN107227794A (en) * | 2017-07-24 | 2017-10-03 | 武汉市人防建筑设计研究院 | A kind of air-raid shelter |
| CN107503765A (en) * | 2017-09-05 | 2017-12-22 | 绍兴文理学院 | Tunnel in cold area inverted arch earth-filling method |
| CN109098187A (en) * | 2018-08-24 | 2018-12-28 | 中国中元国际工程有限公司 | A kind of method of basement room heart backfilling material |
| CN109695248A (en) * | 2019-02-21 | 2019-04-30 | 中亿丰建设集团股份有限公司 | Foundation pit backfills construction method under a kind of lid excavation construction cover plate |
| CN109882192A (en) * | 2019-02-26 | 2019-06-14 | 重庆交通建设(集团)有限责任公司 | TBM starting well shaft construction method |
| CN109854257A (en) * | 2019-03-08 | 2019-06-07 | 中铁十二局集团有限公司 | Section piston air duct backfills shield station-crossing construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506316A (en) * | 2022-10-08 | 2022-12-23 | 中国电建集团成都勘测设计研究院有限公司 | Concrete backfill method for sealed space seepage shaft under high external water pressure |
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