A kind of shield tunnel shock-resistant and energy-dissipating damping node structure and its construction method
Technical field
The present invention relates to shield tunnel design and construction technical field, and in particular to a kind of shield tunnel shock-resistant and energy-dissipating shock-absorbing joint
Point structure and its construction method.
Background technology
With China's economy, the fast development of society, Large Underwater Tunnel Engineering has been enter into fast-developing phase, shield method tunnel
Road is widely used because of the features such as its is safe, quick, scientific and technological.Generally, shield tunnel chip architecture is not taken
Special earthquake resistant construction.But the antidetonation of shield tunnel chip architecture, glissando need under complicated geological, highlight lines earthquake region severe earthquake action
Design.Do not take the special main construction procedure of earthquake resistant construction duct pieces of shield tunnel as follows:
1st, section of jurisdiction makes;
2nd, section of jurisdiction is transported;
3rd, interior pipe sheet assembling;
The 4th, section of jurisdiction endless loop is installed to, longitudinally connected bolt;
5th, section of jurisdiction back-grouting.
The content of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide one kind adaptation large deformation, contracting can be resetted
Tubule piece circumferential weld spacing, the shield tunnel shock-resistant and energy-dissipating damping node structure and its construction method for consuming inputting seismic energy.
To achieve the above object, the technical solution adopted by the present invention is:A kind of shield tunnel shock-resistant and energy-dissipating damping node knot
Structure, it includes the adjacent shield duct piece of two rings, steel plate, nut, marmem plate, bolt, segment joint;Two described phases
Adjacent shield duct piece intrados is provided with steel plate and nut, and shape note is provided with the inside of the segment joint of the adjacent shield duct piece of two rings
Recall alloy sheets, marmem plate is spun by bolt through steel plate with nut respectively.
A kind of construction method of shield tunnel shock-resistant and energy-dissipating damping node structure, it is comprised the following steps:
1st, in the section of jurisdiction intrados pre-embedded steel slab and nut apart from section of jurisdiction circumferential weld certain distance;
2nd, after the shaping of pipe sheet assembling tunnel, pre-buried steel plate and nut can form one on the intrados of tunnel duct piece
Circle;
3rd, with bolt the marmem plate with bolt hole made, installed in section of jurisdiction intrados pre-embedded steel slab
On;
4th, it is closely connected between mounted marmem plate and section of jurisdiction intrados.
Preferably, described steel plate and nut is embedded in the adjacent shield duct piece of two rings.
Preferably, it is provided with bolt hole on described marmem plate.
The present invention operation principle be:Using two adjacent endless tube pieces of existing shield tunnel, during by being made in section of jurisdiction
Intrados pre-embedded steel slab and nut, pipe sheet assembling tunnel shaping after, by bolt have can restore to the original state performance, high ductility,
The marmem plate that inputting seismic energy can be consumed is fixed on the inside of section of jurisdiction.During generation earthquake, under severe earthquake action, it can fit
Stratum relative settlement is answered, reduce section of jurisdiction circumferential weld spacing and ensures tunnel structure safety.
After said structure, had the beneficial effect that caused by the present invention:
1st, large deformation is adapted to, can reset and reduce section of jurisdiction circumferential weld spacing, consumption inputting seismic energy;
2nd, marmem plate can be repaired, replaced, easy to maintenance;
3rd, produce using common segment die, without making special segment die again, make simple;
4th, construction technology is simple, and construction investment is few.
Brief description of the drawings
Fig. 1 is the cut-away view of the present invention;
Fig. 2 is node unfolding assumption diagram of the present invention;
Fig. 3 is the structure chart that A-A is cutd open in Fig. 2.
Description of reference numerals:
Two adjacent shield duct pieces 1, steel plate 2, nut 3, marmem plate 4, bolt 5, segment joints 6.
Embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Referring to such as Fig. 1 --- shown in Fig. 3, present embodiment adopts the following technical scheme that:A kind of shield tunnel antidetonation
Energy-dissipating and shock-absorbing node structure, it includes the adjacent shield duct piece 1 of two rings, steel plate 2, nut 3, marmem plate 4, bolt 5, pipe
Piece seam 6;Two described adjacent intrados of shield duct piece 1 are provided with steel plate 2 and nut 3, the pipe of the adjacent shield duct piece 1 of two rings
The inner side of piece seam 6 is provided with marmem plate 4, and marmem plate 4 passes through steel plate 2 and spiral shell by bolt 5 respectively
Cap 3 spins.
A kind of construction method of shield tunnel shock-resistant and energy-dissipating damping node structure, it is comprised the following steps:
1st, in the section of jurisdiction intrados pre-embedded steel slab and nut apart from section of jurisdiction circumferential weld certain distance;
2nd, after the shaping of pipe sheet assembling tunnel, pre-buried steel plate and nut can form one on the intrados of tunnel duct piece
Circle;
3rd, with bolt the marmem plate with bolt hole made, installed in section of jurisdiction intrados pre-embedded steel slab
On;
4th, it is closely connected between mounted marmem plate and section of jurisdiction intrados.
Preferably, described steel plate 2 and nut 3 are embedded in the adjacent shield duct piece 1 of two rings.
Preferably, it is provided with bolt hole on described marmem plate 4.
The operation principle of present embodiment is:Using two adjacent endless tube pieces of existing shield tunnel, by pipe
Intrados pre-embedded steel slab and nut when piece makes, after the shaping of pipe sheet assembling tunnel, by bolt have the performance that can restore to the original state,
High ductility, the marmem plate that can consume inputting seismic energy are fixed on the inside of section of jurisdiction.During generation earthquake, severe earthquake action
Under, stratum relative settlement is adapted to, reduce section of jurisdiction circumferential weld spacing and ensures tunnel structure safety.
After said structure, had the beneficial effect that caused by present embodiment:
1st, large deformation is adapted to, can reset and reduce section of jurisdiction circumferential weld spacing, consumption inputting seismic energy;
2nd, marmem plate can be repaired, replaced, easy to maintenance;
3rd, produce using common segment die, without making special segment die again, make simple;
4th, construction technology is simple, and construction investment is few.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The skill of the industry
For art personnel it should be appreciated that the present invention is not limited to the above embodiments, described in above-described embodiment and specification is explanation
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.