Construction method for high fill airport beside high-speed railway tunnel

Abstract

The application discloses a construction method for a high filling airport beside a mountain and under a high-speed railway tunnel, and relates to a high filling construction process, which comprises the following steps: piling mixed stones under a tunnel portal, building a ""-shaped frame body A, building a tunnel open cut at the top of the ""-shaped frame body A corresponding to the portal, staggeredly building a ""-shaped frame body B between the plurality of ""-shaped frame bodies A, building a ladder-shaped support frame at the top of the ""-shaped frame body B, filling mixed soil between the ladder-shaped support frame and a base surface, filling cement soil between the top of the ladder-shaped support frame and the height of the top of a mountain, and laying concrete on the plane formed by the top of the mountain and the top of the cement soil. The high-speed railway tunnel open cut is supported by a concrete frame and stones through the mountain valley beside the high-speed railway, the mountain valley is deeply filled by fillers with different components and support frames, and the mixed soil in the intermediate layer is used as a buffer zone when the high-speed railway or the airplane is running, so that the mutual influence caused by resonance is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to a mountain-adjacent high-filling construction process, in particular to a mountain-adjacent high-filling airport construction method for a high-speed railway tunnel. BACKGROUND

[0002] With the gradual development of mountainous areas, the traffic development of the mountainous areas becomes crucial, and the traditional rugged roads have been difficult to meet the development needs, and the construction of airports and high-speed railways in the mountainous areas can effectively improve the traffic capacity, but it is difficult to construct large buildings such as high-speed railways or airports in the complex environment of the mountainous areas, and when the high-speed railway is constructed, tunnel excavation and high-filling or high-elevation construction measures are needed, and when the airport is constructed, high-filling and other leveling measures are needed, the construction amount is huge, and there are many construction hazards, and when the two are constructed in a cross mode, tunnel excavation and high-filling leveling measures need to be jointly constructed, in order to reduce the damage of settlement or resonance to the road base, the soil layer cannot be simply filled during high-filling, and therefore a scientific construction method is needed. SUMMARY

[0003] In order to overcome the defects in the background art, the application discloses a mountain-adjacent high-filling airport construction method for a high-speed railway tunnel, concrete frames and stone supports are arranged on the valley adjacent to the mountain and under the high-speed railway, and the valley is deeply filled with fillers with different components and support frames, and the mixed soil in the middle layer is used as a buffer zone when the high-speed railway or the airplane runs, so that the mutual influence caused by resonance is reduced.

[0004] In order to achieve the object of the application, the application adopts the following technical scheme:

[0005] A mountain-adjacent high-filling airport construction method for a high-speed railway tunnel comprises the following steps:

[0006] Step one, mixed stone is stacked under the tunnel portal: on the mountain bottom surface adjacent to the mountain and under the tunnel portal provided on the mountain, trapezoidal mixed stone is stacked along the length direction of the tunnel portal, so that the top of the trapezoidal mixed stone is slightly lower than the lower edge of the tunnel portal;

[0007] Step two, a H-shaped frame body A is constructed: a plurality of H-shaped frame bodies A are constructed on the top of the trapezoidal mixed stone and spaced from the trapezoidal mixed stone, the top of the H-shaped frame body A is located between the trapezoidal mixed stone and the tunnel portal, and the two legs of the H-shaped frame body A are located on both sides of the trapezoidal mixed stone;

[0008] Step three, a tunnel open cut is constructed on the top of the H-shaped frame body A corresponding to the portal: a tunnel open cut with an arc-shaped top and a horizontal bottom is constructed on the top of the plurality of H-shaped frame bodies A, and the inside of the tunnel open cut is connected with the inside of the tunnel portal;

[0009] Step four, staggered construction of "Dong" shaped frame body B between multiple "Dong" shaped frame body A: multiple "Dong" shaped frame body B is staggered between multiple "Dong" shaped frame body A and is constructed on the top of the tunnel open cave;

[0010] Step five, construction of ladder-shaped support frame on the top of "Dong" shaped frame body B: the ladder-shaped support frame is constructed on the top of "Dong" shaped frame body B and is fixed with multiple "Dong" shaped frame body B along the length direction of the tunnel open cave;

[0011] Step six, filling mixed soil between the ladder-shaped support frame and the base surface: the mixed soil is fully filled and compacted between the mountain bottom base surface located outside the trapezoidal mixed stone and the top of the ladder-shaped support frame;

[0012] Step seven, filling cement soil between the ladder-shaped support frame and the top of the mountain: the cement soil is fully filled between the top of the mixed soil and the mountain top plane;

[0013] Step eight, laying concrete on the plane formed by the top of the mountain and the top of the cement soil: the concrete is fully laid on the plane formed by the top of the cement soil and the mountain top plane to form the airport floor.

[0014] The underlying high-speed rail tunnel mountain high fill airport construction method, the composition of the trapezoidal mixed stone in step one is gravel and clay, and the ratio is that the gravel content accounts for 70%-80% of the total mass, and the clay content accounts for 20%-30%.

[0015] The underlying high-speed rail tunnel mountain high fill airport construction method, the material of multiple "Dong" shaped frame body A in step two is reinforced concrete, and the lower end of the supporting leg of multiple "Dong" shaped frame body A is arranged to extend into the inside of the mountain bottom base surface.

[0016] The underlying high-speed rail tunnel mountain high fill airport construction method, the material of the tunnel open cave in step three is reinforced concrete.

[0017] The underlying high-speed rail tunnel mountain high fill airport construction method, the material of multiple "Dong" shaped frame body B in step four is reinforced concrete, and the lower end of the supporting leg of multiple "Dong" shaped frame body B is arranged to extend into the inside of the mountain bottom base surface.

[0018] The underlying high-speed rail tunnel mountain high fill airport construction method, the material of the ladder-shaped support frame in step five is reinforced concrete.

[0019] The underlying high-speed rail tunnel mountain high fill airport construction method, the composition of the mixed soil in step six is coarse-grained soil with a particle size of 0.075-60mm and a particle mass greater than or equal to 50% of the total mass.

[0020] The cement content of the cement soil in step seven is 10%-20% of the total mass, and the clay content is 80%-90%.

[0021] The material of the concrete in step eight is reinforced concrete.

[0022] The application has the following beneficial effects due to the adoption of the above technical scheme.

[0023] The construction method of the high filling airport beside the high-speed railway tunnel under the mountain has the following advantages: the mountain valley beside the high-speed railway is used to support the concrete frame and stone of the high-speed railway tunnel, the mountain valley is filled with fillers with different components and support frames, the mixed soil in the middle layer is used as a buffer zone when the high-speed railway or the airplane is running, the mutual influence caused by resonance is reduced, the mutual influence of the vibration of the high-speed railway passing through the tunnel and the vibration of the airplane taking off and landing is greatly relieved, the disadvantages of many hidden dangers of high filling are effectively solved, and the construction method has wide popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The construction step flow chart of the application is shown in the figure;

[0025] Figure 2 The structure schematic view of the construction step one of the application is shown in the figure;

[0026] Figure 3 The structure schematic view of the construction step two of the application is shown in the figure;

[0027] Figure 4 The structure schematic view of the construction step three of the application is shown in the figure;

[0028] Figure 5 The structure schematic view of the construction step four of the application is shown in the figure;

[0029] Figure 6 The structure schematic view of the construction step five of the application is shown in the figure;

[0030] Figure 7 The three-dimensional structure schematic view of the tunnel open cut, the H-shaped frame body A, the H-shaped frame body B and the ladder-shaped support frame of the application is shown in the figure;

[0031] Figure 8 The structure schematic view of the construction step six of the application is shown in the figure;

[0032] Figure 9 The structure schematic view of the construction step seven of the application is shown in the figure;

[0033] Figure 10 The structure schematic view of the construction step eight of the application is shown in the figure.

[0034] Fig. 1, mountain top plane; 2, tunnel portal; 3, mountain bottom base; 4, ladder-shaped mixed stone; 5, mountain; 6, "h" shaped frame A; 7, tunnel open cut; 8, "h" shaped frame B; 9, ladder-shaped support frame; 10, mixed soil; 11, cement soil; 12, concrete; 13, airport floor. DETAILED DESCRIPTION

[0035] The application can be explained in more detail by the following examples, which are not intended to limit the application, and the purpose of disclosing the application is to protect all variations and improvements within the scope of the application;

[0036] The accompanying drawings are referred to in Figures 1-10 The construction method of the high-fill airport beside the high-speed railway tunnel in the mountainous area comprises the following steps:

[0037] Step one, stacking mixed stone under the tunnel portal: stacking ladder-shaped mixed stone 4 on the mountain bottom base 3 under the tunnel portal 2 of the mountain 5 along the length direction of the tunnel portal 2, so that the top of the ladder-shaped mixed stone 4 is slightly lower than the lower edge of the tunnel portal 2, and the composition of the ladder-shaped mixed stone 4 is gravel and clay, and the ratio of the gravel content to the total mass is 70%-80%, and the clay content is 20%-30%;

[0038] Step two, building "h" shaped frame A: building multiple "h" shaped frames A 6 with the top between the ladder-shaped mixed stone 4 and the tunnel portal 2 and the two legs on both sides of the ladder-shaped mixed stone 4 on the top of the ladder-shaped mixed stone 4 and spaced apart, and the material of the multiple "h" shaped frames A 6 is reinforced concrete, and the lower end of the leg of the multiple "h" shaped frames A 6 extends into the inside of the mountain bottom base 3;

[0039] Step three, building a tunnel open cut on the top of the "h" shaped frame A corresponding to the portal: building a tunnel open cut 7 with an arc-shaped top, a horizontal bottom, and an internal connection with the inside of the tunnel portal 2 on the top of the multiple "h" shaped frames A 6, and the material of the tunnel open cut 7 is reinforced concrete;

[0040] Step four, building "h" shaped frame B staggered between the multiple "h" shaped frames A: building multiple "h" shaped frames B 8 with the top above the tunnel open cut 7 staggered between the multiple "h" shaped frames A 6, and the material of the multiple "h" shaped frames B 8 is reinforced concrete, and the lower end of the leg of the multiple "h" shaped frames B 8 extends into the inside of the mountain bottom base 3;

[0041] Step five, building a ladder-shaped support frame on the top of the "h" shaped frame B: building a ladder-shaped support frame 9 fixed to the multiple "h" shaped frames B 8 on the top of the "h" shaped frame B 8 along the length direction of the tunnel open cut 7, and the material of the ladder-shaped support frame 9 is reinforced concrete;

[0042] Step six, filling mixed soil between the ladder-shaped support frame and the base surface: fill and compact mixed soil 10 between the mountain base surface 3 outside the trapezoidal mixed stone 4 and the height of the top of the ladder-shaped support frame 9, and the composition of the mixed soil 10 is coarse-grained soil with a particle size of 0.075-60mm and a particle mass greater than or equal to 50% of the total mass;

[0043] Step seven, filling cement soil between the ladder-shaped support frame and the height of the top of the mountain: fill cement soil 11 between the top of the mixed soil 10 and the mountain top plane 1, and the ratio of the cement soil 11 is that the cement content accounts for 10%-20% of the total mass, and the clay content is 80%-90%;

[0044] Step eight, laying concrete on the plane formed by the top of the mountain and the top of the cement soil: fill concrete 12 on the plane formed by the top of the cement soil 11 and the mountain top plane 1 to form an airport floor 13, and the material of the concrete 12 is reinforced concrete.

[0045] The present disclosure can play a hard support for the tunnel open cut 7 by piling up trapezoidal mixed stone 4 at the bottom of the tunnel open cut 2 and supporting the tunnel open cut 7 with multiple "h" shaped frame bodies A6 spanning the trapezoidal mixed stone 4, serving as a buffer transition zone for filling by filling mixed soil 10 between the mountain base surface 3 outside the trapezoidal mixed stone 4 and the height of the top of the ladder-shaped support frame 9, serving as a hard support for filling cement soil 11 between the top of the mixed soil 10 and the mountain top plane 1 by building multiple "h" shaped frame bodies B8 with their tops above the tunnel open cut 7 between multiple "h" shaped frame bodies A6 and the ladder-shaped support frame 9 supporting multiple "h" shaped frame bodies B8 on the top of multiple "h" shaped frame bodies B8, serving as an airport floor 13 by filling concrete 12 on the plane formed by the top of the cement soil 11 and the mountain top plane 1, playing a role in reducing the vibration caused by high-speed rail in the tunnel open cut 7 and the vibration caused by the airport floor 13, and forming a soft soil buffer zone by the mixed soil 10, not only reducing the vibration of the two on each other, but also not affecting the stability of the tunnel open cut 7 and the airport floor 13 itself.

[0046] The part of the present disclosure not described in detail is prior art.

Claims

1. A construction method for a high fill airport beside a mountain for a high-speed railway tunnel, characterized in that, The method comprises the following steps: Step one, piling mixed stones under the tunnel entrance: pile trapezoidal mixed stones (4) on the mountain side base surface (3) under the tunnel entrance (2) of the mountain (5) along the length direction of the tunnel entrance (2), so that the top of the trapezoidal mixed stones (4) is slightly lower than the lower edge of the tunnel entrance (2); Step two, building "H" shaped frame body A: build multiple "H" shaped frame body A (6) with the top between the trapezoidal mixed stones (4) and the tunnel entrance (2) and the two legs on the two sides of the trapezoidal mixed stones (4) on the top of the trapezoidal mixed stones (4) and across the trapezoidal mixed stones (4) at intervals; Step three, building tunnel open cut on the top of "H" shaped frame body A corresponding to the entrance: build tunnel open cut (7) with the top being arc-shaped bottom, the bottom being horizontal and the inside being through and connected with the inside of the tunnel entrance (2) on the top of the multiple "H" shaped frame body A (6); Step four, building "H" shaped frame body B staggered between the multiple "H" shaped frame body A: build multiple "H" shaped frame body B (8) with the top above the tunnel open cut (7) staggered between the multiple "H" shaped frame body A (6); Step five, building ladder-shaped support frame on the top of "H" shaped frame body B: build ladder-shaped support frame (9) fixed with the multiple "H" shaped frame body B (8) on the top of the "H" shaped frame body B (8) along the length direction of the tunnel open cut (7); Step six, filling mixed soil between the ladder-shaped support frame and the base surface: fully fill and compact mixed soil (10) between the mountain bottom base surface (3) on the outside of the trapezoidal mixed stones (4) and the top of the ladder-shaped support frame (9) at the height; Step seven, filling cement soil between the top of the ladder-shaped support frame and the height of the mountain top: fully fill cement soil (11) between the top of the mixed soil (10) and the mountain top plane (1); Step eight, laying concrete on the plane formed by the top of the mountain and the top of the cement soil: fully fill concrete (12) on the plane formed by the top of the cement soil (11) and the mountain top plane (1) to form airport apron (13).

2. The method according to claim 1, characterized in that: The components of the trapezoidal mixed stones (4) in step one are gravel and clay, and the ratio is that the content of gravel accounts for 70%-80% of the total mass, and the content of clay accounts for 20%-30%.

3. The method according to claim 1, wherein the method is characterized in that: The materials of the multiple "H" shaped frame body A (6) in step two are all reinforced concrete, and the lower ends of the legs of the multiple "H" shaped frame body A (6) all extend into the inside of the mountain bottom base surface (3).

4. The method according to claim 1, wherein the method is characterized in that: The material of the tunnel open cut (7) in step three is reinforced concrete.

5. The method according to claim 1, wherein the method is characterized in that: The materials of the multiple "H" shaped frame body B (8) in step four are all reinforced concrete, and the lower ends of the legs of the multiple "H" shaped frame body B (8) all extend into the inside of the mountain bottom base surface (3).

6. The method according to claim 1, wherein the method is characterized in that: The material of the ladder-shaped support frame (9) in step five is reinforced concrete.

7. The method according to claim 1, wherein the method is characterized in that: The components of the mixed soil (10) in step six are coarse-grained soil with the particle size between 0.075-60 mm and the particle mass greater than or equal to 50% of the total mass.

8. The method according to claim 1, wherein the method is characterized in that: The ratio of the cement soil (11) in step seven is that the content of cement accounts for 10%-20% of the total mass, and the content of clay accounts for 80%-90%.

9. The method according to claim 1, wherein the method is characterized in that: The material of the concrete (12) in step eight is reinforced concrete.

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