CN114075977A - Construction method and device for receiving shield by filling water in steel sleeve - Google Patents
Construction method and device for receiving shield by filling water in steel sleeve Download PDFInfo
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- CN114075977A CN114075977A CN202010832862.6A CN202010832862A CN114075977A CN 114075977 A CN114075977 A CN 114075977A CN 202010832862 A CN202010832862 A CN 202010832862A CN 114075977 A CN114075977 A CN 114075977A
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- sleeve
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- inner cylinder
- ring
- half ring
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- 238000010276 construction Methods 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 239000000945 filler Substances 0.000 claims abstract description 16
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 8
- 239000000440 bentonite Substances 0.000 claims abstract description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 9
- 239000002689 soil Substances 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 239000004570 mortar (masonry) Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a construction method and a device for a water-filled receiving shield in a steel sleeve, belonging to the technical field of tunnel construction, wherein the construction method comprises the following steps: s1, mounting the outer cylinder and the inner cylinder of the sleeve, and keeping a gap between the outer ring of the inner cylinder and the inner ring of the outer cylinder; s2, closing openings at two ends of the gap; s3, filling materials between the outer cylinder and the inner cylinder; s4, filling water or bentonite slurry into the inner cylinder; the double-layer sleeve can be adopted for enhancing the pressure resistance of the sleeve through the inner sleeve and the outer sleeve, and the filler is filled, so that the inner sleeve and the outer sleeve can be tightly attached, the effect of step-by-step pressurization is achieved, the pressure resistance is improved, and the reliability is enhanced; fill water in the sleeve and receive, the required soil pressure of balanced shield structure, sleeve internal pressure controls easily to it is little to the ground disturbance, more does benefit to the shield structure and gets into in the sleeve, and the cutter head need not cut when the shield structure gets into, need not go out soil, and is safe, quick, and the cost is lower, reduces the problem that takes place the card cutter head simultaneously.
Description
Technical Field
The invention belongs to the technical field of tunnel construction, and particularly relates to a construction method and a device for a water-filled receiving shield in a steel sleeve.
Background
The shield method refers to a construction method for performing operations such as tunnel excavation and lining by using a shield. A construction method for tunneling a tunnel in a soft foundation or a broken rock stratum by using a shield. The shield is a special device with a shield, and the shield is pushed forward by taking the lining blocks with installed tails as pivots, cuts the soil body by a cutter head, and simultaneously discharges the soil and assembles the following precast concrete lining blocks.
When current underground tunnel construction, because there is groundwater and make things convenient for the later stage to accept the end construction, the receiving terminal setting when the underground construction tunnel needs accepts the sleeve, however the sleeve of current acceptance end, adopt interim steel sleeve to receive, the installation is troublesome, the pressure that bears is limited, the reliability is not high, need the stratum to consolidate, there is very big potential safety hazard of leaking, leakproofness and stability are relatively poor, the terminal loading counter-force of sleeve is too big during the construction, the sleeve can take place to warp even the displacement, construction danger has been increased, and, traditional steel sleeve receives, need the filler in the sleeve, and is with high costs, the construction is complicated, the construction period is long, 400 cubic fillers in the sleeve are expensive in cost.
Disclosure of Invention
Therefore, the invention provides a construction method and a device for a receiving shield filled with water in a steel sleeve, which aim to solve the problems that a temporary steel sleeve is adopted for receiving a sleeve at a receiving end in the prior art, the installation is troublesome, the bearing pressure is limited, the reliability is not too high, great potential safety hazards of water leakage exist, the sealing performance and the stability are poor, the deformation is easily caused by overlarge internal pressure during construction, and the construction danger is increased.
In order to achieve the above purpose, the invention provides the following technical scheme: a construction method of a water-filled receiving shield in a steel sleeve comprises the following steps:
s1, installing the outer cylinder and the inner cylinder of the sleeve, wherein one end of the inner cylinder extends into the steel ring of the tunnel door, a gap is left between the outer ring of the inner cylinder and the inner ring of the outer cylinder, and the outer cylinder can be provided with multiple layers and can be used as required;
s2, sealing the ports of the inner cylinder and the outer cylinder at the ends far away from the end wall;
s3, filling materials between the outer cylinder and the inner cylinder;
and S4, filling water or bentonite slurry into the inner cylinder. Water or bentonite slurry is selected as required.
The inner cylinder and the outer cylinder adopt double-layer sleeves to enhance the compressive resistance of the sleeves, mortar is filled between the inner cylinder and the outer cylinder because the outer part of the inner cylinder is not smooth, and the inner cylinder and the outer cylinder can be tightly attached and have the function of step-by-step pressurization by filling fillers, the fillers adopt mortar, and each section of sleeve is installed in a bolt connection or welding mode.
Further, the step S1 includes the following steps:
s1.1, mounting a lower semi-ring of an outer cylinder;
s1.2, installing a lower half ring of the inner cylinder in the lower half ring of the outer cylinder, enabling the lower half ring of the inner cylinder and the upper half ring of the outer cylinder to be positioned on the same axis, and enabling a gap to exist between the outer wall of the lower half ring of the inner cylinder and the inner wall of the lower half ring of the outer cylinder;
s1.3, installing an upper inner cylinder half ring, and combining the upper inner cylinder half ring and a lower inner cylinder half ring to form a cylindrical structure;
s1.4, installing the outer cylinder upper half ring, combining the outer cylinder upper half ring and the outer cylinder lower half ring to form a cylindrical structure, and forming a gap between the inner wall of the outer cylinder upper half ring and the outer wall of the inner cylinder upper half ring.
Further, the step S2 is followed by the following steps:
a seal is mounted at the forward end of the sleeve.
Further, the front end port of the sleeve is opposite to the constructed portal, and the sealing element is tightly attached to the outer end wall of the constructed portal.
Furthermore, the construction method also comprises the step of installing a jacking device, wherein the jacking device is used for tightly attaching the sleeve to the constructed end wall.
A construction device of a construction method for receiving a shield by filling water in a steel sleeve comprises a sleeve, wherein the sleeve comprises an outer cylinder and an inner cylinder; the inner cylinder is sleeved in the outer cylinder; a gap is reserved between the wall of the inner ring of the outer barrel and the wall of the outer ring of the inner barrel; sealing components are arranged at two ends of the gap; a filler is arranged in the gap; water or bentonite slurry is arranged in the inner cylinder; and one end of the sleeve, which is far away from the end wall, is provided with a jacking device.
Further, the outer cylinder consists of a plurality of sections of first short cylinders; each section of the first short cylinder is a cylinder structure assembled by a first upper half ring and a first lower half ring.
Further, the inner cylinder consists of a plurality of sections of second short cylinders; each section of the second short cylinder is a cylindrical structure assembled by a second upper half ring and a second lower half ring.
Further, the sealing assembly comprises a sealing ring, an inner cylinder end cover and an outer cylinder end cover;
the sealing ring is arranged at one end of the gap close to the end wall;
the inner cylinder end cover is arranged at one end of the inner cylinder, which is far away from the end wall;
the outer barrel end cover is arranged at one end of the outer barrel, which is far away from the end wall;
a gap is reserved between the inner cylinder end cover and the outer cylinder end cover.
Furthermore, one end of the sleeve, which is far away from the end wall, is provided with a jacking device, and the jacking device comprises a support frame and a jacking oil cylinder; the jacking oil cylinder is arranged between the support frame and the sleeve, one end of the jacking oil cylinder is connected to the support frame, and the other end of the jacking oil cylinder is connected to the end part of the sleeve.
In order to achieve the purpose of facilitating the shield to move smoothly in the sleeve, the guide rail for sliding the shield is arranged in the inner cylinder in a matched mode, so that the shield can conveniently slide forwards on the rail after entering the sleeve, friction to the sleeve is reduced, and the shield and the sleeve are protected.
The invention has the following advantages: the inner cylinder is embedded into the steel ring of the tunnel door and can bear the tiny position movement of the sleeve; meanwhile, the inner cylinder is directly embedded into the portal steel ring, so that the tunnel portal steel ring can bear huge radial shear force of the tunnel compared with the method of directly connecting the portal steel ring with a bolt; compared with a single-layer sleeve, the inner sleeve and the outer sleeve have independent structures and can resist strong water and soil pressure; compared with the method that the sleeves are directly connected with the portal steel ring through the bolts, the method greatly reduces the dragging force to the portal steel ring, and is safer to the portal during construction; the inner cylinder is tightly attached to the steel ring of the tunnel door, the inner cylinder and the inner wall of the steel ring have good sealing effect, and a front lip sealing ring of the sleeve and an end wall are sealed, so that two sealing structures are formed, and the sealing capability of the whole sleeve is improved; compared with a cast-in-place concrete structure, the structure is simple, the installation and the removal are convenient, the construction period is short, and the manufacturing cost is low; the pressure resistance of the sleeve can be enhanced by adopting a double-layer sleeve through the inner cylinder and the outer cylinder, fillers are filled, the inner cylinder and the outer cylinder can be tightly attached, the effect of step-by-step pressurization is achieved, the pressure resistance is improved, the reliability is enhanced, meanwhile, the sleeve is tightly propped on the surface of the end wall through the propping device, the whole sealing property and stability are enhanced, the construction safety is improved, the inner cylinder is tightly clung to the steel ring of the portal, the deformation of the receiving sleeve in the axial direction can be resisted, the traditional bolt rigid connection is replaced by sealing between the sleeve and the receiving end wall, the sleeve can be allowed to deform from a trace amount, the sleeve and the portal are not in rigid connection, and the installation and the removal are convenient and rapid; fillers such as mortar are filled between the inner cylinder and the outer cylinder, and the mortar does not need to be filled into the inner cylinder, so that the use amount of the mortar is greatly reduced, and the use cost is reduced; fill water in the sleeve and receive, the required soil pressure of balanced shield structure, sleeve internal pressure controls easily to it is little to the ground disturbance, more does benefit to the shield structure and gets into in the sleeve, and the cutter head need not cut when the shield structure gets into, need not go out soil, and is safe, quick, and the cost is lower, reduces the problem that takes place the card cutter head simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic view showing the overall structure of a construction apparatus for a water-filled steel casing shield receiving construction method according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an outer cylinder of a construction apparatus for a method of receiving a shield by filling water in a steel cylinder according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an inner cylinder structure of a construction apparatus for a method of receiving a shield by filling water into a steel cylinder according to an embodiment of the present invention;
fig. 4 is a schematic view of an installation structure of a pressure adjustment device of a construction device for a construction method of a water-filled receiving shield in a steel sleeve according to an embodiment of the present invention.
In the figure: the device comprises an outer cylinder 1, an inner cylinder 2, a gap 3, a filler 4, an inner cylinder end cover 5, an outer cylinder end cover 6, a sealing ring 7, a first upper half ring 11, a first lower half ring 12, a second upper half ring 21, a second lower half ring 22, a support frame 8, a jacking oil cylinder 9 and a steel pipe 10.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and the detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The construction method for the water filling and receiving shield provided by the embodiment 1 of the invention comprises the following steps:
and S1, mounting the outer cylinder and the inner cylinder of the sleeve, wherein one end of the inner cylinder extends into the steel ring of the portal, and a gap is reserved between the outer ring of the inner cylinder and the inner ring of the outer cylinder.
Specifically, the method comprises the following steps:
s1.1, installing a lower half ring of the outer cylinder, and S1.2, installing the lower half ring of the inner cylinder in the lower half ring of the outer cylinder, so that the lower half ring of the inner cylinder and the upper half ring of the outer cylinder are positioned on the same axis, and a gap is reserved between the outer wall of the lower half ring of the inner cylinder and the inner wall of the lower half ring of the outer cylinder.
A lower half ring of the outer cylinder is arranged on the transverse support, an upper half ring of the outer cylinder is arranged on the transverse support, and the upper half ring and the lower half ring are connected; after the section of the outer barrel at the front end is installed, a sealing ring is installed at the front end of the installed outer barrel, and the front end of the installed outer barrel is attached to the surface of an end wall; continuously installing an outer cylinder lower semi-ring at the tail end of the first section of the installed outer cylinder, installing a first section of inner cylinder of the inner cylinder after installing the outer ring to the required length according to the requirement, and attaching and installing the outer wall of the lower semi-ring of the inner cylinder and the inner ring wall of the steel ring of the constructed tunnel portal; then, connecting the upper half ring of the inner cylinder and the lower half ring of the inner cylinder;
according to the length and the number of the required sleeves, sequentially installing the subsequent inner-cylinder lower half rings until the length meets the length requirement of shield receiving, wherein the end, far away from the end wall, of the inner cylinder is located inside the outer cylinder, and a distance exists between the end, far away from the end wall, of the inner cylinder and the end, far away from the end wall, of the outer cylinder.
The double-layer sleeve can be used for enhancing the pressure resistance of the sleeve through the inner sleeve and the outer sleeve, and filling filler can ensure that the inner sleeve and the outer sleeve are tightly attached and have the function of step-by-step pressurization, so that the pressure resistance is improved, the reliability is enhanced, meanwhile, the sleeve is tightly propped on the surface of the end wall through the propping device, the integral sealing property and stability are enhanced, and the construction safety is improved; and the filler flows into the portal steel ring, so that the adhesiveness is enhanced, the stability of the portal steel ring is further enhanced, and the pressure resistance is improved.
S1.3, installing an upper inner cylinder half ring, and combining the upper inner cylinder half ring and a lower inner cylinder half ring to form a cylindrical structure;
s1.4, installing the upper half ring of the outer cylinder, combining the upper half ring of the outer cylinder and the lower half ring of the outer cylinder to form a cylindrical structure, and forming a gap between the inner wall of the upper half ring of the outer cylinder and the outer wall of the upper half ring of the inner cylinder
And S2, closing the openings at the two ends of the gap.
Specifically, the end port of the end wall is far away from the inner cylinder, the end port of the end wall is far away from the outer cylinder through inner cylinder end cover sealing, the end port of the end wall is far away from the outer cylinder through the outer cylinder end cover sealing, and a distance exists between the inner cylinder end cover and the outer cylinder end cover.
And S3, filling materials between the outer cylinder and the inner cylinder.
The filler adopts high-grade cement mortar.
During installation, the front end port of the sleeve is opposite to the constructed portal, the sealing element is a sealing ring, and the sealing ring is tightly attached to the outer end wall of the constructed portal, so that the sealing performance is enhanced.
Further preferably, the construction method further comprises the step of installing a jacking device, wherein the jacking device is used for tightly attaching the sleeve to the constructed end wall.
The sleeve is tightly pushed, so that the front end of the sleeve is tightly attached to the surface of the end wall.
And S4, filling water or bentonite slurry into the inner cylinder.
Specifically, this embodiment selects to fill water, and sleeve and reaction frame support the installation back, and the bottom installation rail in the inner tube section of thick bamboo is convenient for the shield to slide in the sleeve, prevents that the shield from directly making contact with the sleeve, fills concrete mortar between the interior outer sleeve, and after mortar intensity reached the design requirement, the inner skleeve was inside to be full of water and to carry out withstand voltage test, and test pressure is the shield and normally receives 1.1 ~ 1.5 times of required soil pressure.
The sleeve selects proper experimental pressure according to actual requirements and the supporting capacity of the reaction frame. The pressure test is qualified, after the stability of the whole sleeve meets the requirement, the water pressure in the sleeve is adjusted to the pressure required by shield receiving through the pressure adjusting device, the shield is waited to pass through the station end wall and enter the sleeve, the shield tunnels while draining the water in the sleeve under the condition of ensuring the required pressure in the sleeve, and the water pressure of the sleeve is ensured to be in a reasonable fluctuation range. After the shield breaks away from the station headwall completely, carry out the slip casting to the soil body between shield few last ring section of jurisdiction and the stratum and consolidate, these soil bodies satisfy the designing requirement after, slowly reduce the water pressure in the sleeve, until arranging to the greatest extent, and whether leak between inspection section of jurisdiction and the portal, confirm safe back, open the sleeve top, progressively demolish interior outer sleeve top, back lid and reaction frame support, then demolish the shield and hang out, demolish remaining sleeve at last, so far, the steel sleeve aquatic is received and is ended.
Preferably, the pressure regulating device comprises a steel pipe, the steel pipe which is communicated with the inner part of the inner cylinder and has the diameter of 100 plus 400mm is arranged on the inner cylinder, the top of the steel pipe has the same height with the ground, when the shield moves forwards in the sleeve, the water is directly discharged to the ground (the water outlet is abbreviated as the above) by the extrusion of the shield, so that the water pressure in the sleeve can be ensured to be constant when the shield is pushed forwards, the ground is also ensured to be stable, the water outlet can be reasonably selected by adjusting the height from the sleeve according to the water and soil pressure which is actually required so as to determine the received soil pressure, water discharging ball valves can be arranged on the vertical pipeline at different heights, valves at different heights are selected to discharge water according to different periods during the receiving period, so that the water pressure in the sleeve is kept constant without manual control, and the constant pressure can be set according to the water discharging ball valves at different height positions of the switch, i.e. different constant pressures in the sleeve are achieved.
Example 2
The construction device for the construction method of the water filling and shield receiving in the steel sleeve provided by the embodiment 2 of the invention comprises a sleeve, and please refer to fig. 1, wherein the sleeve comprises an outer cylinder 1 and an inner cylinder 2; the inner cylinder 2 is sleeved inside the outer cylinder 1; a gap 3 is reserved between the outer ring wall of the outer cylinder 1 and the outer ring wall of the inner cylinder 2; sealing components are arranged at two ends of the gap 3; a filler 4 is arranged in the gap 3; the inner cylinder 2 is filled with water or bentonite slurry.
When the pressure-resistant double-layer sleeve type end wall is used, the inner sleeve and the outer sleeve can be tightly attached by adopting the double-layer sleeve to enhance the pressure resistance of the sleeve and filling the filler, the pressure capacity is improved, the reliability is enhanced under the action of step-by-step pressurization, meanwhile, the sleeve is tightly propped on the surface of the end wall through the propping device, the whole sealing property and stability are enhanced, and the construction safety is improved.
Referring to fig. 2, the outer cylinder 1 has at least one layer, and the present embodiment has two layers, and each layer is composed of several segments of the first short cylinder; each section of the first short cylinder is a cylindrical structure assembled by a first upper half ring 11 and a first lower half ring 12.
Referring to fig. 3, the inner cylinder 2 is composed of a plurality of second short cylinders; each section of the second short cylinder is a cylindrical structure assembled by a second upper half ring 21 and a second lower half ring 22.
The sealing component comprises a sealing ring 7, an inner cylinder end cover 5 and an outer cylinder end cover 6; the sealing ring 7 is arranged at one end of the gap 3 close to the end wall; the inner cylinder end cover 5 is arranged at one end of the inner cylinder 2 far away from the end wall; the outer barrel end cover 6 is arranged at one end of the outer barrel 1 far away from the end wall; a gap is reserved between the inner cylinder end cover 5 and the outer cylinder end cover 6; the void is provided with a filler 4 therein.
One end of the sleeve, which is far away from the end wall, is provided with a jacking device, the jacking device comprises a support frame 8 and a jacking oil cylinder 9, and the jacking oil cylinder is provided with a plurality of jacking oil cylinders which are set according to requirements; the tight hydro-cylinder 9 in top sets up between support frame 8 and sleeve, and the tight hydro-cylinder 9 one end in top is connected on support frame 8, and the tight hydro-cylinder 9 other end in top is connected in the sleeve tip.
When the support is used, the support frame 8 is installed at one end, far away from the end wall, of the sleeve, after the support frame is fixed, the jacking oil cylinder is horizontally arranged, one end of the jacking oil cylinder is connected with the support frame 8, the other end of the jacking oil cylinder is connected with the end cover of the outer barrel, and the jacking oil cylinder is started to enable the front end of the sleeve to be tightly attached to the end wall, so that the sealing performance is improved.
Further preferably, a pressure adjusting device is arranged inside the inner cylinder, as shown in fig. 4, the pressure adjusting device can be a steel pipe 10 with a plurality of valves, one end of the steel pipe is communicated with the inner cylinder, and the other end of the steel pipe penetrates through the outer cylinder to be flush with the ground.
Fill water in the sleeve and receive, the required soil pressure of balanced shield structure, sleeve internal pressure controls easily to it is little to the ground disturbance, more does benefit to the shield structure and gets into in the sleeve, and the cutter head need not cut when the shield structure gets into, need not go out soil, and is safe, quick, and the cost is lower, reduces the problem that takes place the card cutter head simultaneously.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (10)
1. A construction method for a water-filled receiving shield in a steel sleeve is characterized by comprising the following steps:
installing an outer cylinder and an inner cylinder of the sleeve, wherein one end of the inner cylinder extends into the steel ring of the portal, and a gap is reserved between the outer ring of the inner cylinder and the inner ring of the outer cylinder;
sealing the ports of the ends of the inner cylinder and the outer cylinder, which are far away from the end wall;
filling materials are injected between the outer cylinder and the inner cylinder;
and filling water or bentonite slurry into the inner cylinder.
2. The construction method of the water-filled shield receiving structure in the steel sleeve according to claim 1, characterized in that the construction method comprises:
mounting a lower semi-ring of the outer cylinder;
a lower half ring of the inner cylinder is arranged in the lower half ring of the outer cylinder, so that the lower half ring of the inner cylinder and the upper half ring of the outer cylinder are positioned on the same axis, and a gap is reserved between the outer wall of the lower half ring of the inner cylinder and the inner wall of the lower half ring of the outer cylinder;
installing an upper half ring of the inner cylinder, combining the upper half ring of the inner cylinder and a lower half ring of the inner cylinder to form a cylindrical structure, wherein one end of the formed cylindrical structure is positioned inside the portal steel ring, and the outer ring of the cylindrical structure is attached to the inner ring of the portal steel ring;
and installing the upper half ring of the outer cylinder, combining the upper half ring of the outer cylinder and the lower half ring of the outer cylinder to form a cylindrical structure, and forming a gap between the inner wall of the upper half ring of the outer cylinder and the outer wall of the upper half ring of the inner cylinder.
3. The construction method of the water-filled shield receiving structure in the steel sleeve according to claim 1, characterized in that the construction method comprises:
a seal is mounted on the front end of the outer cylinder.
4. The method as claimed in claim 1, wherein the method comprises installing a pressure regulator on the sleeve.
5. The construction method of the water-filled shield receiving structure in the steel sleeve of claim 1, further comprising installing a tightening device at an end of the sleeve far from the end wall, wherein the tightening device is used for tightly attaching the sleeve to the end wall to be constructed.
6. The construction equipment for the construction method of the water-filled receiving shield in the steel sleeve according to any one of claims 1 to 5, comprising a sleeve, wherein the sleeve comprises an outer cylinder and an inner cylinder;
the inner cylinder is sleeved in the outer cylinder;
a gap is reserved between the wall of the inner ring of the outer barrel and the wall of the outer ring of the inner barrel;
sealing components are arranged at two ends of the gap;
a filler is arranged in the gap;
water or bentonite slurry is arranged in the inner cylinder;
and one end of the sleeve, which is far away from the end wall, is provided with a jacking device.
7. The construction equipment for the construction method of the water-filled receiving shield inside the steel sleeve according to claim 6, wherein the outer cylinder is at least one layer, and each layer is composed of several sections of the first short cylinders; each section of the first short cylinder is a cylinder structure assembled by a first upper half ring and a first lower half ring.
8. The construction device of the construction method of the water-filled receiving shield in the steel sleeve according to claim 6, wherein the sealing assembly comprises a sealing ring, an inner sleeve end cover and an outer sleeve end cover;
the sealing ring is arranged at one end of the gap close to the end wall;
the inner cylinder end cover is arranged at one end of the inner cylinder, which is far away from the end wall;
the outer barrel end cover is arranged at one end of the outer barrel, which is far away from the end wall;
a gap is reserved between the inner cylinder end cover and the outer cylinder end cover.
9. The construction device of the construction method of the water-filled receiving shield of the steel sleeve as claimed in claim 6, wherein the jacking device comprises a support frame and a jacking cylinder; the jacking oil cylinder is arranged between the support frame and the sleeve, one end of the jacking oil cylinder is connected to the support frame, and the other end of the jacking oil cylinder is connected to the end part of the sleeve.
10. The apparatus as claimed in claim 6, wherein the sleeve is provided with a pressure regulator.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961964A (en) * | 2023-01-06 | 2023-04-14 | 腾达建设集团股份有限公司 | Organic glass sleeve mounting method for composite earth pressure shield construction mechanism experimental device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001107680A (en) * | 1999-10-12 | 2001-04-17 | Kawasaki Heavy Ind Ltd | Shield machine for removing existing tunnel |
| WO2018082714A1 (en) * | 2016-11-07 | 2018-05-11 | 中铁工程装备集团有限公司 | Shield tunneling machine for tunnel connecting passageway and connecting passageway tunneling method thereof |
| CN108397206A (en) * | 2018-03-08 | 2018-08-14 | 中铁建大桥工程局集团第四工程有限公司 | Arrival method of reseptance under short stabilization zone operating mode in rich water soft soil layer |
| CN109356596A (en) * | 2018-10-30 | 2019-02-19 | 中建交通建设集团有限公司 | The method of shield machine is originated and received using recyclable diaphram wall and steel bushing |
| CN109667590A (en) * | 2018-11-30 | 2019-04-23 | 中铁十六局集团北京建功机械有限公司 | A kind of assembly construction method of steel bushing |
| CN110924961A (en) * | 2019-12-06 | 2020-03-27 | 中交第三航务工程局有限公司 | Construction method for starting shield tunneling machine to pass through existing station |
| CN111396067A (en) * | 2020-03-30 | 2020-07-10 | 中铁十二局集团有限公司 | Comprehensive shield steel sleeve receiving construction method in complex environment |
-
2020
- 2020-08-18 CN CN202010832862.6A patent/CN114075977B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001107680A (en) * | 1999-10-12 | 2001-04-17 | Kawasaki Heavy Ind Ltd | Shield machine for removing existing tunnel |
| WO2018082714A1 (en) * | 2016-11-07 | 2018-05-11 | 中铁工程装备集团有限公司 | Shield tunneling machine for tunnel connecting passageway and connecting passageway tunneling method thereof |
| CN108397206A (en) * | 2018-03-08 | 2018-08-14 | 中铁建大桥工程局集团第四工程有限公司 | Arrival method of reseptance under short stabilization zone operating mode in rich water soft soil layer |
| CN109356596A (en) * | 2018-10-30 | 2019-02-19 | 中建交通建设集团有限公司 | The method of shield machine is originated and received using recyclable diaphram wall and steel bushing |
| CN109667590A (en) * | 2018-11-30 | 2019-04-23 | 中铁十六局集团北京建功机械有限公司 | A kind of assembly construction method of steel bushing |
| CN110924961A (en) * | 2019-12-06 | 2020-03-27 | 中交第三航务工程局有限公司 | Construction method for starting shield tunneling machine to pass through existing station |
| CN111396067A (en) * | 2020-03-30 | 2020-07-10 | 中铁十二局集团有限公司 | Comprehensive shield steel sleeve receiving construction method in complex environment |
Non-Patent Citations (2)
| Title |
|---|
| 丁盛;: "盾构钢套筒密闭接收施工技术研究", 低温建筑技术, no. 03, 28 March 2018 (2018-03-28) * |
| 安宏斌;怀平生;白晓岭;漆伟强;景晨钟;: "特拉维夫富水砂层盾构短套筒始发技术研究", 现代城市轨道交通, no. 12, 20 December 2019 (2019-12-20) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961964A (en) * | 2023-01-06 | 2023-04-14 | 腾达建设集团股份有限公司 | Organic glass sleeve mounting method for composite earth pressure shield construction mechanism experimental device |
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