CN106677216A - Deep underwater transportation corridor structures and construction method thereof - Google Patents

Deep underwater transportation corridor structures and construction method thereof Download PDF

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Publication number
CN106677216A
CN106677216A CN201710032228.2A CN201710032228A CN106677216A CN 106677216 A CN106677216 A CN 106677216A CN 201710032228 A CN201710032228 A CN 201710032228A CN 106677216 A CN106677216 A CN 106677216A
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China
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gallery
box
horizontal
concrete
slope
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CN201710032228.2A
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CN106677216B (en
Inventor
余义华
章荣发
邓东生
高洪远
郭靖
尹振强
李江
钟保蒙
刘�东
曾坤
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/063Tunnels submerged into, or built in, open water

Abstract

The invention discloses deep underwater transportation corridor structures and a construction method thereof and belongs to the technical field of underwater building structures. The deep underwater transportation corridor structures comprise a horizontal transportation corridor structure and a slope-shaped transportation corridor structure; a foundation of the horizontal transportation corridor structure is arranged on a riverbed, one end of the horizontal transportation corridor structure is connected with the slope-shaped transportation corridor structure, and the other end of the horizontal transportation corridor structure is connected with an underwater protective body; and a foundation of the slope-shaped transportation corridor structure is arranged on a dike slope and is supported by a pile foundation, one end of the slope-shaped transportation corridor structure is connected with the horizontal transportation corridor structure, and the other end of the slope-shaped transportation corridor structure is connected with a ground place. According to the deep underwater transportation corridor structures and the construction method thereof, the safe degree is high, the process is simple, the water-proof effect of the structures is good, the construction speed is quick, and the settlement volume is low.

Description

Access gallery structure and its construction method under deep water
Technical field
The present invention relates to submerged structure technical field of structures, and in particular to be access gallery structure under a kind of deep water, this Invention further relates to the construction method of this structure.
Background technology
After Three Gorges Projects retaining, the preservation of White Crane Ridge Inscription of Fuling Chongqing is submerged in 10-40m under water all the year round.2 months 2001, really It is fixed that former address protection scheme under water is used to preservation of White Crane Ridge Inscription, i.e., a protective cover is built on inscribing, historical relic is inscribed and the external world It is environmentally isolated, and then realizes protection purpose.White crane beam protects engineering by ground exhibition hall, under water protective and access gallery three It is grouped into.Access gallery is divided into domatic access gallery and horizontal traffic gallery two parts.Domatic access gallery basis is arranged in The Changjiang dyke built is rolled on rockfill slope, and horizontal traffic gallery is arranged on riverbed, every gallery length about 140m, and totally two Bar.Access gallery is to connect ground exhibition hall and the under water important component of protective under white crane beam protection engineering water, its peace Quan Xing, applicability directly influence the normal of protective under water and use.
Access gallery is banded structure, 5.0 × 5.8m of normal section outer profile size (wide × high), empty dead size in normal section 3.4 × 4.2m (wide × high), side wall, top board, base plate thickness are 0.8m, and top board is in two ends arch camber, interior arch radius 0.9m.Base plate Inner side armpit angle is 300 × 300mm;Domatic access gallery two bottom sides set toe of wall, and clear span 0.7m, thick 0.8m are chosen outward, form full envelope Enclosed banding submerged structure.Domatic access gallery sets movement joint per 11.0m together, and centre does not set construction joint;Horizontal traffic gallery Movement joint is set per 20m together, centre sets construction joint;Domatic access gallery presses structure shape with the junction of horizontal traffic gallery Arrangement of reinforcement is strengthened in formula smoothly transition, end, and domatic access gallery end divides into concrete foundation or the pier that shakes, do not set joint.
At present, it is normally at more than ground than more conventional access gallery structure, plays a part of to connect traffic, is primarily subjected to Dead load, geological process, the normal use live load such as live load and wind load, snow load.Access gallery is narrow under water for white crane beam Long, stress is complicated, is run for a long time in 10~40m changes deep water, gallery structure in addition to dead load is born, also subject to inside and outside water The pressure and accidental impact power, geological process, temperature that soil pressure, reservoir stormy waves power, buoyancy, shoal materials act on outside should Power, concrete shrinkage stress etc..
Protection structure and the construction method of this structure now also without submerged structure.
The content of the invention
The first object of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of deepwater environment, complicated stress Under the conditions of access gallery structure under the deep water that is used.
The second object of the present invention is to provide the construction method of access gallery structure under above-mentioned deep water.
To realize above-mentioned first purpose, the present invention is adopted the following technical scheme that:
Access gallery structure under deep water, including horizontal traffic gallery structure and domatic access gallery structure;The level is handed over Vestibule road architecture basics are arranged on riverbed, and one end connects with domatic access gallery structure, and the other end connects with protective under water; The domatic access gallery architecture basics are arranged on the slope of dyke, are supported by pile foundation, one end and horizontal traffic gallery knot Structure connects, and the other end is connected with ground oodle shop;The agent structure of the horizontal traffic gallery structure and domatic access gallery structure is just The box section that section is made for cast-in-situ steel reinforced concrete;
The horizontal traffic gallery structure includes:Bedrock surface, concrete cushion, box section, cemented rock, sand rubble and Building stones;The concrete cushion is located on bedrock surface;The box section is located on the centre position of concrete cushion;The slurry Building block stone is located on concrete cushion and is symmetrically arranged in the both sides of box section, and both sides cemented rock by horizontal position and Ramp position composition;The sand rubble is located between cemented rock and building stones, and is symmetrically arranged in the both sides of box section;It is described Building stones are made up of horizontal position and ramp position, and the anti-anchor block stone is embedded in the horizontal position of building stones and is symmetrically arranged in box-shaped The both sides in section;
The domatic access gallery structure includes:Bedrock surface, sand rubble compensation bed course, box section, sand rubble, block stone, Grout blotter and precast concrete block;The sand rubble compensation bed course is located on bedrock surface and by horizontal position and ramp Position composition, rockfill is rolled under the slope position;The box section is located on the centre position of sand rubble compensation bed course; The sand rubble is located on sand rubble compensation bed course and is symmetrically arranged in the both sides of box section, and both sides sand rubble is by level Position, upslope position and downslope position composition, rockfill is rolled under the downslope position;The precast concrete block It is made up of upper horizontal position, lower horizontal position and ramp position, the upper horizontal position is located on sand rubble horizontal position, described Lower horizontal position is located on blotter, and cemented rock has been poured between the slope position and sand rubble upslope position;Institute State and roll rockfill under blotter.
Further, the gradient on building block stone slope position described in horizontal traffic gallery structure is 1: 2;The building stones slope The gradient at position is 1: 2;The gradient at precast concrete block slope position described in domatic access gallery structure is 1: 2;The sand The gradient at rubble compensation bed course slope position is 1: 2;The gradient at the sand rubble downslope position is 1: 2, upslope position The gradient is 1: 1.5.
By such scheme, the box section, including gallery side wall, gallery base plate and gallery top board;The gallery side wall Inner surface left side is provided with concrete backfill step ladder;The gallery side wall inner surface right side is provided with plumbing pipe trench;It is described to give Trench cover is provided with above by-wash;The concrete backfill step ladder and by-wash middle setting have elevator machine to cheat; The concrete backfill step ladder, elevator machine hole and plumbing pipe trench are located on gallery base plate.
Further, the agent structure normal section outer profile size is 5.0m × 5.8m (wide × high), and headroom size is 3.4m × 4.2m (wide × high), gallery side wall, gallery top board and gallery base plate thickness are 0.80m, and gallery top board rises at two ends Arch, interior arch radius 0.9m, gallery base plate inner side armpit angle is 300 × 300mm.
Access gallery structure under above-mentioned deep water is constructed, the working procedure of the horizontal traffic gallery structure, including Following steps:1) excavated, and end is excavated to bedrock surface;2) after excavating cleaning to bedrock surface, casting concrete bed course;3) Box section is poured on concrete cushion, after box section has been poured, using cemented rock gallery base plate both sides coagulation Spats locking is carried out on soil padding;4) after spats has been locked, broken sandstone backfill and compaction in layers, pressure are carried out in gallery side wall both sides Real coefficient 0.94, side slope 1: 2 (vertical height: horizontal width);5) after being backfilling and compacted, in the broken sand stone layer last time being backfilling and compacted Fill out 1.5m thickness building stones and grout the thick anti-anchor block stones of 2m, the building stones of backfill are flushed with the anti-anchor block stone top for grouting;
The working procedure of the domatic access gallery structure, comprises the following steps:1) remove dike face precast concrete block and Blotter, is excavated, and end is excavated to bedrock surface;2) after being excavated to bedrock surface check of foundation subsoil, using pea gravel concreten to grinding Pressure rockfill carries out concrete grouting reinforcing, and pours broken sandstone compensation bed course;3) box-shaped is poured on broken sandstone compensation bed course Section, after box section has been poured, carries out spats, and lay toe of wall bed course in gallery base plate both sides in time using cemented rock; 4) after spats and toe of wall setting cushion are complete, broken sandstone, and compaction in layers, compacting factor are backfilled more than sand rubble compensation bed course 0.94, side slope 1: 1.5 (vertical height: horizontal width);5) after being backfilling and compacted, 500mm thickness sand rubbles are poured in spats side Bed course, then presses dyke dike face standard and recovers 200mm thickness precast concrete block masks in top surface.
Further, the working procedure step 2 of domatic access gallery structure) in check of foundation subsoil by geological mapping unit confirm hold Power layer bedrock surface, designing unit confirms to basic plane size, positioning, absolute altitude.
Further, the working procedure step 2 of domatic access gallery structure) in grouting and reinforcing injected hole it is a diameter of 110mm, hole depth is 7m below excavation face.
Yet further, the working procedure step 3 of domatic access gallery structure) in toe of wall bed course from gallery base plate both sides To clear span is extended out for 0.7m, thickness is 0.8m.
Also further, horizontal traffic gallery structure and domatic access gallery structure construction process 3) in box section Constructing, it is integral to be poured together with box section concrete using steel form, and the strength grade for pouring box section concrete is C40, seepage-resistant grade is S12, and freeze proof grade is D200, and swelling agent used is ZY type high-performance high-efficiency concrete expansion admixtures.
The invention has the advantages that:
1st, access gallery structure vault junction is processed as arc-shaped under deep water, can increase rigidity herein, and reducing it should Power is concentrated.
2nd, access gallery main structure construction pours to form whole using steel form together with agent structure concrete under deep water Body, reduces construction joint quantity, is conducive to accelerating construction progress, and enhancing structure self waterproofing.And agent structure concrete is adopted With ZY type high-performance high-efficiency concrete expansion admixtures, concrete shrinkage is can compensate for, improve structure anti-permeability performance, further enhance structure Self waterproofing.
3rd, domatic access gallery structure and horizontal traffic gallery structure are embedded in riverbed, the river course mistake occupied by gallery top Flow area is relatively small, reduces influence of the reservoir stormy waves power to gallery structure, and do not influence the section flood passage.In Three Gorges Reservoir Under the conditions of low water level operation, the navigation of Yangtze River waterway is not influenceed, solve the safety problem that navigation brings to protection engineering.
4th, the essential bearing stratum of domatic access gallery structure and horizontal traffic gallery structure is located at horizon d, can significantly reduce Structure sediment amount, it is ensured that it meets design requirement.
Brief description of the drawings
Fig. 1 is access gallery structure chart under deep water;
Fig. 2 is main body structural box section cross-sectional view;
Fig. 3 is that horizontal traffic gallery foundation trench backfills cross-sectional view;
Fig. 4 is that domatic access gallery foundation trench backfills cross-sectional view.
In figure:Horizontal traffic gallery structure 1, domatic access gallery structure 2, dyke 3, oodle shop 4, under water protective 5, river Bed 6, pile foundation 7, gallery base plate 01, gallery side wall 02, gallery top board 02, plumbing pipe trench 04, trench cover 05, elevator machine hole 06th, concrete backfill step ladder 07, anti-anchor block stone 11, building stones 12, sand rubble 13, cemented rock 14, concrete cushion 15, box-shaped cut Face 16, bedrock surface 17, precast concrete block 21, sand rubble compensate bed course 22, roll rockfill 23, cemented rock 24, sand rubble 25th, blotter 26.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, access gallery structure under deep water, including horizontal traffic gallery structure 1 and domatic access gallery structure 2;The basis of horizontal traffic gallery structure 1 is arranged on riverbed 6, and one end connects with domatic access gallery structure 2, the other end with Protective 5 connects under water;The basis of domatic access gallery structure 2 is arranged on the slope of dyke 3, and the gradient is 30 °, by pile foundation Plinth 7 is supported, and one end connects with horizontal traffic gallery structure 1, and the other end is connected with ground oodle shop 4.
As shown in Fig. 2 the agent structure normal section of described horizontal traffic gallery structure 1 and domatic access gallery structure 2 For the box section that cast-in-situ steel reinforced concrete is made;The box section includes gallery base plate 01, gallery side wall 02 and gallery top 03 plate;The inner surface of gallery side wall 02 left side is provided with concrete backfill step ladder 07;The inner surface of gallery side wall 02 right side It is provided with plumbing pipe trench 04;The top of the plumbing pipe trench 04 is provided with trench cover 05;The concrete backfill step ladder 07 and the middle setting of by-wash 04 have elevator machine cheat 06;The concrete backfill step ladder 07, elevator machine cheats 06 and supplying drainage Ditch 04 is located on gallery base plate 01.
As shown in figure 3, horizontal traffic gallery structure 1 includes:Bedrock surface 17, concrete cushion 15, box section 16, grout Block stone 14, sand rubble 13 and building stones 12;The concrete cushion 15 is located on bedrock surface 17;The box section 16 is located at coagulation On the centre position of soil padding 15;The cemented rock 14 is located on concrete cushion 15 and is symmetrically arranged in box section 16 Both sides, and both sides cemented rock 14 is by horizontal position and slope position (gradient is 1: 2) composition;The sand rubble 13 is located at slurry Between building block stone 14 and building stones 12, and it is symmetrically arranged in the both sides of box section 16;The building stones 12 are by horizontal position and slope Position (gradient is 1: 2) constitutes, and the anti-anchor block stone 11 is embedded in the horizontal position of building stones 12 and is symmetrically arranged in box section 16 both sides.
As shown in figure 4, domatic access gallery structure 2 includes:Bedrock surface 17, sand rubble compensation bed course 22, box section 16, Sand rubble 25, block stone 24, grout blotter 26 and precast concrete block 21;The sand rubble compensation bed course 22 is located at bedrock surface Constituted on 17 and by horizontal position and slope position (gradient is 1: 2), rockfill 23 is rolled under the slope position;The case Tee section 16 is located on the centre position of sand rubble compensation bed course 22;The sand rubble 25 is located on sand rubble compensation bed course 22 simultaneously The both sides of box section 16, and both sides sand rubble 25 are symmetrically arranged in by horizontal position, upslope position (gradient is 1: 1.5) With downslope position (gradient is 1: 2) composition, rockfill 23 is rolled under the downslope position;The precast concrete block 21 It is made up of upper horizontal position, lower horizontal position and slope position (gradient is 1: 2), the upper horizontal position is located at the water of sand rubble 25 On flat position, the lower horizontal position is located on blotter 26, between the slope position and the upslope position of sand rubble 25 Cemented rock 24 is poured;Rockfill 23 is rolled under the blotter 26.
Wherein, the outer profile size of the agent structure normal section of horizontal traffic gallery structure 1 and domatic access gallery structure 2 It is 5.0m × 5.8m (wide × high) that headroom size is 3.4m × 4.2m (wide × high), gallery side wall, gallery top board and gallery base plate Thickness is 0.80m, gallery top board in two ends arch camber, interior arch radius 0.9m, gallery base plate inner side armpit angle is 300 × 300mm.
Access gallery structure under above-mentioned deep water is constructed, according to above-mentioned horizontal traffic gallery of shown in Fig. 3, constructing, its Working procedure is comprised the following steps:1) excavated, and end is excavated to bedrock surface 17;2) after excavating cleaning to bedrock surface 17, Pour C15 concrete cushions 15;3) according to Fig. 2, box section 16 is poured on C15 concrete cushions 15, box section 16 is poured After having built, spats locking is carried out on the concrete cushion 15 of the both sides of gallery base plate 01 using cemented rock 14;4) spats is locked Afterwards, carry out broken sandstone 13 in the both sides of gallery side wall 02 to backfill and compaction in layers, compacting factor 0.94, side slope 1: 2 (vertical height: Horizontal width);5) after being backfilling and compacted, 1.5m thickness building stones 12 are backfilled on 13 layers of the broken sandstone being backfilling and compacted and to grout 2m thick anti- Anchor block stone 11, the building stones 12 of backfill are flushed with the top of anti-anchor block stone 11 for grouting.
According to above-mentioned domatic access gallery structure of shown in Fig. 4, constructing, its working procedure is comprised the following steps:1) dike is removed Face precast concrete block and blotter, are excavated, and end is excavated to bedrock surface 17;2) it is excavated to the check of foundation subsoil of bedrock surface 17 Afterwards, concrete grouting reinforcing is carried out to rolling rockfill 23 using C30 pea gravel concretens, and pours sand rubble compensation bed course 22, The a diameter of 110mm of injected hole, hole depth is 7m below excavation basal surface;3) according to Fig. 2, case is poured on broken sandstone compensation bed course 22 Tee section 16, after box section 16 has been poured, using the timely spats of 1: 2 cemented rock 24, and in the laying of the both sides of gallery base plate 01 Extend out the toe of wall bed course of clear span 0.7m, thick 0.8m;4) after spats and toe of wall setting cushion are complete, in sand rubble compensation bed course 22 both sides More than backfill broken sandstone 25, and compaction in layers, compacting factor 0.94, side slope 1: 1.5 (vertical height: horizontal width);5) backfill After being compacted, 500mm thickness sand blotter 26 is poured in spats side, then press the dike face standard of dyke 3 in top surface and recover 200mm The mask of thick precast concrete block 21.
Wherein, in the work progress of horizontal gallery structure and domatic access gallery structure, it is C40 to use strength grade, Seepage-resistant grade is S12, and freeze proof grade is integral for the concrete and steel form of D200 are poured together, forms box section, coagulation Swelling agent used is ZY type high-performance high-efficiency concrete expansion admixtures during soil is prepared.
Different phase according to construction time and runtime carries out Load Combination, is calculated from different safety coefficients.
Involved effect has dead load, soil pressure, water pressure (design high-water pressure, design during internal force calculating Low water level pressure, design mean water pressure), heating, cooling, Pedestrian Load (unidirectional, two-way), differential settlement, earthquake make With.
The combination of runtime primary load is as shown in table 1.
Table 1
Note:" " expression effect has this kind of load
Three-dimensional modeling calculating is carried out to access gallery structure using general finite meta software, operating mode as shown in table 2 is calculated
Table 2
According to each operating mode subitem internal force, according to the requirement of Load Combination, the peak value of each control section internal force design load is obtained, As shown in table 3.
Table 3
According to the result of table 3, sectional reinforcement checking computations are carried out to access gallery structure under deep water and understands that gallery structure cross section is most The big ratio of reinforcement is 1.42%, structure general safety.

Claims (8)

1. access gallery structure under deep water, it is characterised in that:Including horizontal traffic gallery structure (1) and domatic access gallery structure (2);Horizontal traffic gallery structure (1) basis is arranged on riverbed (6), and one end connects with domatic access gallery structure (2), The other end connects with protective under water (5);Domatic access gallery structure (2) basis is arranged on the slope of dyke (3), by Pile foundation (7) is supported, and one end connects with horizontal traffic gallery structure (1), and the other end is connected with ground oodle shop (4);The level is handed over The box-shaped that the agent structure normal section of logical gallery structure (1) and domatic access gallery structure (2) is made for cast-in-situ steel reinforced concrete Section (16);
The horizontal traffic gallery structure (1) includes:Bedrock surface (17), concrete cushion (15), box section (16), grout block Stone (14), sand rubble (13) and building stones (12);The concrete cushion (15) is on bedrock surface (17);The box section (16) on the centre position of concrete cushion (15);The cemented rock (14) is on concrete cushion (15) and symmetrical The both sides of box section (16), and both sides cemented rock (14) are arranged in by horizontal position and ramp position composition;The sand Rubble (13) is symmetrically arranged in the both sides of box section (16) between cemented rock (14) and building stones (12);The stone Material (12) is made up of horizontal position and ramp position, and the horizontal position that the anti-anchor block stone (11) is embedded in building stones (12) is simultaneously symmetrical It is arranged in the both sides of box section (16);
The domatic access gallery structure (2) includes:Bedrock surface (17), sand rubble compensate bed course (22), box section (16), sand Rubble (25), block stone (24), grout blotter (26) and precast concrete block (21);The sand rubble compensates bed course (22) position Constituted on bedrock surface (17) and by horizontal position and ramp position, rockfill (23) is rolled under the slope position;It is described Box section (16) is on the centre position of sand rubble compensation bed course (22);The sand rubble (25) compensates positioned at sand rubble and pads On layer (22) and the both sides of box section (16) are symmetrically arranged in, and both sides sand rubble (25) are by horizontal position, upslope portion Position and downslope position composition, roll rockfill (23) under the downslope position;The precast concrete block (21) is by upper Horizontal position, lower horizontal position and ramp position composition, the upper horizontal position is located on sand rubble (25) horizontal position, described Lower horizontal position is located on blotter (26), has been poured between the slope position and sand rubble (25) upslope position and grouted Block stone (24);Rockfill (23) is rolled under the blotter (26).
2. access gallery structure under deep water according to claim 1, it is characterised in that:Described box section (16) includes Gallery base plate (01), gallery side wall (02) and gallery top board (03);Gallery side wall (02) the inner surface left side is provided with coagulation Earthen backfill step is terraced (07);Gallery side wall (02) the inner surface right side is provided with plumbing pipe trench (04);The plumbing pipe trench (04) trench cover (05) is provided with above;Described terraced (07) and by-wash (04) middle setting of concrete backfill step has electricity Terraced machine cheats (06);The concrete backfill step terraced (07), elevator machine hole (06) and plumbing pipe trench (04) are positioned at gallery base plate (01) on.
3. access gallery structure under deep water according to claim 1 and 2, it is characterised in that:Building block stone (14) slope The gradient at position is 1: 2;
The gradient at building stones (12) the slope position is 1: 2;
The gradient at precast concrete block (21) the slope position is 1: 2;
The gradient at described sand rubble compensation bed course (22) slope position is 1: 2.
The gradient at sand rubble (25) the downslope position is 1: 2, and the gradient at upslope position is 1: 1.5.
4. under the deep water in construction claims 1 to 3 described in any claim access gallery structure method, its feature exists In:
The working procedure of the horizontal traffic gallery structure (1), comprises the following steps:1) excavated, and end is excavated to base Scar (17);2) after excavating cleaning to bedrock surface (17), casting concrete bed course (15);3) poured on concrete cushion (15) Box section (16), after box section (16) has been poured, using cemented rock (14) gallery base plate (01) both sides concrete Bed course carries out spats locking on (15);4) after spats has been locked, broken sandstone (13) backfill is carried out simultaneously in gallery side wall (02) both sides Compaction in layers, compacting factor 0.94, side slope 1: 2;5) after being backfilling and compacted, backfilled on broken sandstone (13) layer being backfilling and compacted 1.5m thickness building stones (12) and the thick anti-anchor block stones (11) of 2m are grouted, the building stones (12) of backfill are with anti-anchor block stone (11) top for grouting together It is flat;
The working procedure of the domatic access gallery structure (2), comprises the following steps:1) dike face precast concrete block and broken is removed Stone bed course, is excavated, and end is excavated to bedrock surface (17);2) after being excavated to bedrock surface (17) check of foundation subsoil, using microlith coagulation Soil carries out concrete grouting reinforcing to rolling rockfill (23), and pours broken sandstone compensation bed course (22);3) compensated in broken sandstone Box section (16) is poured on bed course (22), after box section (16) has been poured, using the timely spats of cemented rock (24), and Lay toe of wall bed course in gallery base plate (01) both sides;4) after spats and toe of wall setting cushion are complete, sand rubble compensate bed course (22) with The upper broken sandstone (25) of backfill, and compaction in layers, compacting factor 0.94, side slope 1: 1.5;5) after being backfilling and compacted, in spats side 500mm thickness sand blotter (26) is poured, then dyke (3) dike face standard is pressed in top surface and is recovered 200mm thickness precast concrete blocks (21) mask.
5. under deep water according to claim 4 access gallery structure construction method, it is characterised in that:The domatic traffic Gallery structure (2) working procedure step 2) described in grouting and reinforcing a diameter of 110mm of injected hole, hole depth be excavation face below 7m。
6. under deep water according to claim 4 access gallery structure construction method, it is characterised in that:The domatic traffic Gallery structure (2) working procedure step 3) in toe of wall bed course from gallery base plate (01) both sides to extending out clear span for 0.7m, thickness is 0.8m。
7. under the deep water according to claims 4 access gallery structure construction method, it is characterised in that:The level is handed over Logical gallery structure (1) and domatic access gallery structure (2) working procedure step 3) in box section (16) construct and use punching block Plate pours integral together with box section (16) concrete.
8. under the deep water according to claims 4 access gallery structure construction method, it is characterised in that:The box-shaped is cut Face (16) strength grade of concrete is C40, and seepage-resistant grade is S12, and freeze proof grade is D200, and swelling agent used is ZY type high-performance High-efficiency concrete expansion admixture.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107503360A (en) * 2017-07-20 2017-12-22 中铁十八局集团有限公司 A kind of huge loose talus tunnel entrance surcharge reaction ruggedized construction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657435A (en) * 1985-12-27 1987-04-14 Chang Ming Y Underwater tunnel construction
CN202100263U (en) * 2011-06-22 2012-01-04 中铁二院工程集团有限责任公司 High-backfill open cut tunnel lining structure of high-intensity swelled ground region
CN202577349U (en) * 2012-04-07 2012-12-05 中铁十八局集团有限公司 Large immersed tube tunnel dry dock floor structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657435A (en) * 1985-12-27 1987-04-14 Chang Ming Y Underwater tunnel construction
CN202100263U (en) * 2011-06-22 2012-01-04 中铁二院工程集团有限责任公司 High-backfill open cut tunnel lining structure of high-intensity swelled ground region
CN202577349U (en) * 2012-04-07 2012-12-05 中铁十八局集团有限公司 Large immersed tube tunnel dry dock floor structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李雨洁, 李多修: ""水下文物原址保护施工技术与造价分析"", 《铁路工程造价管理》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107503360A (en) * 2017-07-20 2017-12-22 中铁十八局集团有限公司 A kind of huge loose talus tunnel entrance surcharge reaction ruggedized construction
CN107503360B (en) * 2017-07-20 2020-01-24 中铁十八局集团有限公司 Huge loose rock pile tunnel import is piled and is carried back pressure reinforced structure

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