CN209837120U - Arc-shaped and variable-depth shock insulation ditch - Google Patents
Arc-shaped and variable-depth shock insulation ditch Download PDFInfo
- Publication number
- CN209837120U CN209837120U CN201920051997.1U CN201920051997U CN209837120U CN 209837120 U CN209837120 U CN 209837120U CN 201920051997 U CN201920051997 U CN 201920051997U CN 209837120 U CN209837120 U CN 209837120U
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- Prior art keywords
- arc
- shock insulation
- depth
- ditch
- trench
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- 230000035939 shock Effects 0.000 title claims abstract description 81
- 238000009413 insulation Methods 0.000 title claims abstract description 73
- 239000002689 soil Substances 0.000 claims abstract description 15
- 239000010881 fly ash Substances 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims description 20
- 244000302661 Phyllostachys pubescens Species 0.000 claims description 13
- 235000003570 Phyllostachys pubescens Nutrition 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 23
- 238000010276 construction Methods 0.000 abstract description 12
- 238000009412 basement excavation Methods 0.000 abstract description 6
- 239000004566 building material Substances 0.000 abstract description 5
- 238000005056 compaction Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Abstract
The utility model discloses an arc and shock insulation ditch of variable depth, a serial communication port the shock insulation ditch includes the ditch body and follows the round underground continuous wall that the internal face of ditch set up, the horizontal cross-section of the ditch body is the arc, just the degree of depth of the ditch body becomes shallow gradually to both sides from its arc length direction of its center edge. The utility model has the advantages that: (1) the groove body of the shock insulation groove adopts an arc-shaped structure, and has better shock insulation effect compared with the traditional linear shock insulation groove; (2) the depth of the groove body is in a changing state along the arc length direction, so that the shock insulation effect of the shock insulation groove is ensured, and the engineering quantity of groove body excavation and the waste of building materials are reduced; (3) the stress release hole arranged outside one side of the shock insulation trench close to the seismic source can reduce soil body extrusion stress caused by construction activities such as piling, dynamic compaction and the like; (4) the flyash filled in the shock insulation groove can absorb, weaken and block the vibration wave.
Description
Technical Field
The utility model relates to a ground construction field of taking precautions against earthquakes, concretely relates to shock insulation ditch of arc type and variable depth.
Background
When dynamic compaction construction is carried out, huge energy is generated, a part of energy is converted into stress waves, and the stress waves are mainly converted into seismic waves. Seismic waves are transmitted to the periphery from the tamping points to cause vibration of the ground, and the vibration can cause uneven settlement of the peripheral soil body, so that the peripheral environment, residents, buildings, underground pipelines and the like of a construction site are damaged to different degrees, and the normal life of the peripheral residents is seriously influenced.
In order to reduce the adverse effect of vibration generated by dynamic compaction on the surrounding environment and residents, a shock insulation ditch with a certain depth and a certain width is generally arranged between a construction site and a target to be protected at the periphery. The conventional method in engineering is to directly dig ditches and fill sand or only dig ditches and do not fill the ditches, and the shock insulation ditches have the following defects: firstly, the depth of the shock insulation groove is constant along the length direction, the strength of the shock strength is in positive correlation with the distance from the seismic source, and the position far away from the seismic source does not need the same depth as the position close to the seismic source for excavation, so that the constant depth of the groove causes the increase of unnecessary engineering quantity and the waste of building materials; secondly, the shock insulation ditch is not provided with any internal supporting system, once the depth of the shock insulation ditch is too deep, soil bodies on two sides of the shock insulation ditch can collapse during excavation, and if the depth of the shock insulation ditch is not enough, an effective shock insulation effect cannot be achieved; thirdly, water is easily accumulated in the vibration isolation groove, longitudinal waves generated by vibration can be transmitted through liquid, and the accumulated water in the groove can weaken or even lose the vibration isolation effect of the vibration isolation groove; and fourthly, seismic waves can also be transmitted to the surroundings through underground water, and the vibration isolation ditch in the prior art cannot isolate the vibration.
Disclosure of Invention
The utility model aims at providing a shock insulation ditch of arc type and variable depth according to above-mentioned prior art's weak point, this shock insulation ditch adopts the arc type structure, and the degree of depth of the ditch body is the change form in the arc length direction, has reduced the engineering volume when guaranteeing the shock insulation effect to be provided with stress release hole outside one side that shock insulation ditch is close to the focus, reduce the influence of construction activity to building or underground line on every side.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides an arc type and shock insulation ditch of variable depth which characterized in that shock insulation ditch includes the ditch body and follows the round underground continuous wall that ditch internal face set up, the horizontal cross-section of the ditch body is the arc, just the degree of depth of the ditch body becomes shallow gradually to both sides along its arc length direction from its center.
At least two rows of stress release holes are arranged outside the underground continuous wall on one side of the groove body close to the seismic source.
The positions of the stress release holes are arranged in a quincunx manner, the elevation of the bottom of each stress release hole is lower than the elevation of the bottom of the groove body by more than 1.5m, and the elevation of the bottom of the underground continuous wall is lower than the elevation of the bottom of each stress release hole.
The moso bamboo cage is filled in the stress release hole and comprises a plurality of moso bamboos arranged at intervals in the circumferential direction and hooping for connecting and fixing the moso bamboos.
The arc-shaped opening of the groove body faces to a shock insulation protection target.
The top and the middle part of the underground continuous wall are provided with a plurality of top inner supports and middle inner supports at intervals along the arc length direction of the trench body, and the two ends of each of the top inner support and the middle inner support are respectively connected to the underground continuous wall.
The ditch is internally provided with a drain pipe, the bottom end of the drain pipe penetrates into the soil body at the bottom of the ditch, and the top of the drain pipe extends out of the ground.
The groove body is filled with fly ash.
The utility model has the advantages that: (1) the groove body of the shock insulation groove adopts an arc-shaped structure, and has better shock insulation effect compared with the traditional linear shock insulation groove; (2) the depth of the groove body is in a changing state along the arc length direction, so that the shock insulation effect of the shock insulation groove is ensured, and the engineering quantity of groove body excavation and the waste of building materials are reduced; (3) the stress release hole arranged outside one side of the shock insulation trench close to the seismic source can reduce soil body extrusion stress caused by construction activities such as piling, dynamic compaction and the like; (4) the flyash filled in the shock insulation groove can absorb, weaken and block the vibration wave.
Drawings
FIG. 1 is a schematic top view of the middle arc-shaped and variable depth seismic isolation trench of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B in FIG. 1;
FIG. 4 is a schematic top view of the bamboo cage of the present invention;
fig. 5 is a schematic cross-sectional view taken along line C-C in fig. 4.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings, for the understanding of those skilled in the art:
referring to fig. 1-5, the labels 1-9 in the figures are: the underground diaphragm wall comprises an underground diaphragm wall 1, a stress release hole 2, a top inner support 3, a middle inner support 4, a mao bamboo cage 5, fly ash 6, a drain pipe 7, mao bamboo 8 and stirrups 9.
Example (b): as shown in fig. 1-5, the present embodiment specifically relates to an arc-shaped and depth-variable seismic isolation trench, which includes a trench body and a circle of underground continuous wall 1 arranged along the inner wall surface of the trench body, wherein the top and middle parts of the continuous wall 1 are respectively provided with a top inner support 3 and a middle inner support 4 to reinforce the structural strength of the seismic isolation trench, and the trench body adopts an arc-shaped structure to reduce the engineering excavation amount.
As shown in fig. 1-3, the groove body of the shock insulation groove is arc-shaped, that is, the horizontal section of the shock insulation groove is arc-shaped, the opening of the arc-shaped groove faces to a shock insulation protection target, and compared with the traditional linear shock insulation groove, the arc-shaped shock insulation groove has the functions of absorbing and reflecting shock waves, and the shock insulation effect is better and more remarkable; in addition, the degree of depth of the groove body of shock insulation ditch is the change state in the arc length direction, specific saying so, the degree of depth of the groove body becomes shallow gradually to the both ends of the groove body along the arc length direction from its center, because shock insulation ditch middle part region is nearer apart from the focus, shock wave intensity is great, so the degree of depth of the groove body is deepest, along with the increase with the shock source distance, shock wave intensity diminishes relatively, so the degree of depth of the groove body becomes shallow gradually with the grade by the center to both ends, still can reduce the engineering volume and the building material of shock insulation ditch when such design guarantees shock insulation ditch shock insulation effect, thereby engineering cost has been reduced.
As shown in fig. 1-3, a circle of underground continuous wall 1 is arranged on the inner wall surface of the groove body of the shock insulation groove, four rows of the underground continuous wall 1 are provided, two rows extend along the length direction of the groove body and are arc-shaped, the other two rows extend along the width direction of the groove body, the bottom elevation of the underground continuous wall 1 is lower than that of the enclosed groove body, the effects of enclosing and blocking soil around the groove body and avoiding collapse of the groove body caused by shock waves are achieved, and the phenomenon that shallow groundwater around the groove body directly permeates into the groove body from the side wall can be reduced to a certain extent, so that the shock insulation effect is prevented from being weakened; it should be noted that the stability of the two curved rows of underground continuous walls 1 is better than that of the conventional linear underground continuous wall, so that the depth of the seismic isolation trench can be further increased according to the construction needs without worrying about the increase of the depth to cause the trench body to collapse easily, and the seismic isolation trench in the embodiment has a better seismic isolation effect.
As shown in fig. 1-3, the top and the middle of the underground continuous wall 1 are respectively provided with a plurality of top inner supports 3 and middle inner supports 4, the top inner supports 3 and the middle inner supports 4 are all arranged along the arc length direction of the trench body at intervals of 4-6m, and both ends of the top inner supports 3 and the middle inner supports 4 are respectively fixedly connected with two rows of underground continuous walls 1 arranged along the arc length direction of the trench body, so that the underground continuous wall 1 is supported, the strength of the trench body enclosure structure is further enhanced, soil around the trench body is better enclosed, soil collapse accidents are avoided, and the depth of the isolation trench can be further deepened as required.
As shown in fig. 1-5, two rows of stress release holes 2 are further formed in the soil body outside a row of underground continuous walls 1 on one side of the seismic isolation trench close to the seismic source, the positions of the stress release holes 2 are distributed in a quincunx shape, the elevation of the hole bottom of each stress release hole is lower than that of the bottom of the trench body by more than 1.5m, the elevation of the bottom of each underground continuous wall 1 is lower than that of the stress release hole 2, a moso bamboo cage 5 is further arranged in each stress release hole 2, the moso bamboo cage 5 is formed by connecting and fixing moso bamboos 8 which are annularly arranged at intervals and hoop reinforcements 9 which are arranged at intervals in the length direction of the moso bamboos 8, the moso bamboos 8 are convenient to obtain and low in cost, the construction cost can be reduced, the stress release holes 2 can reduce the soil body extrusion stress formed by the construction activities such as piling, forced ramming and the like, and the soil body extrusion stress can, the depth of the shock insulation groove body can be increased to a certain extent according to needs, and the shock insulation effect of the shock insulation groove is enhanced.
As shown in fig. 2, a drain pipe 7 is also inserted in the soil body at the bottom of the trench body of the shock insulation trench, and the drain pipe 7 can drain the underground water around the shock insulation trench, so that the propagation of shock waves along the underground water body is reduced, and the shock insulation effect of the shock insulation trench is improved; the groove body of the shock insulation groove is filled with the fly ash 6, so that the shock insulation groove can absorb, weaken and block shock waves, the shock insulation effect of the shock insulation groove is further improved, and the fly ash 6 is low in cost and sufficient in source.
The construction method of the seismic isolation trench in the embodiment comprises the following steps:
(1) firstly, arranging and punching two rows of stress release holes 2 according to a quincunx pattern, and placing a woven moso bamboo cage 5 in the stress release holes 2;
(2) according to the design that the depth of a groove body of the arc-shaped shock insulation groove gradually becomes shallow from the center to two ends along the arc length direction, constructing an underground continuous wall 1 with the depth consistent with the depth change of the groove body along the outline of the arc-shaped shock insulation groove;
(3) excavating a groove body of the shock insulation groove, pouring top inner supports 3 at intervals of 4-6m along the arc length direction of the groove body at the top elevation of the underground continuous wall 1, continuously excavating to half depth of the underground continuous wall 1, pouring middle inner supports 4 at intervals of 4-6m along the arc length direction of the groove body, and continuously excavating downwards until the designed elevation of the groove body is reached;
(4) and inserting a drain pipe 7 into soil at the bottom of the groove body, filling the fly ash 6 into the groove body of the shock insulation groove, and simultaneously emptying underground water around the shock insulation groove by using the drain pipe 7.
The beneficial effect of this embodiment is: (1) the groove body of the shock insulation groove adopts an arc-shaped structure, and has better shock insulation effect compared with the traditional linear shock insulation groove; (2) the depth of the groove body is in a changing state along the arc length direction, so that the shock insulation effect of the shock insulation groove is ensured, and the engineering quantity of groove body excavation and the waste of building materials are reduced; (3) the stress release hole arranged outside one side of the shock insulation trench close to the seismic source can reduce soil body extrusion stress caused by construction activities such as piling, dynamic compaction and the like; (4) the flyash filled in the shock insulation groove can absorb, weaken and block the vibration wave.
Claims (8)
1. The utility model provides an arc type and shock insulation ditch of variable depth which characterized in that shock insulation ditch includes the ditch body and follows the round underground continuous wall that ditch internal face set up, the horizontal cross-section of the ditch body is the arc, just the degree of depth of the ditch body becomes shallow gradually to both sides along its arc length direction from its center.
2. An arc and depth-variable seismic isolation trench as claimed in claim 1, wherein at least two rows of stress release holes are formed outside said underground continuous wall on the side of said trench body near the seismic source.
3. The arc-type and variable-depth seismic isolation trench as claimed in claim 2, wherein the stress release holes are positioned in a quincunx arrangement, the elevation of the bottom of the stress release holes is lower than the elevation of the bottom of the trench body by more than 1.5m, and the elevation of the bottom of the underground diaphragm wall is lower than the elevation of the bottom of the stress release holes.
4. The arc-shaped and variable-depth seismic isolation trench as claimed in claim 2, wherein the stress release holes are filled with a moso bamboo cage, and the moso bamboo cage comprises a plurality of moso bamboos arranged at intervals in the circumferential direction and hoops for connecting and fixing the moso bamboos.
5. An arc-shaped and variable-depth seismic isolation trench according to claim 1, wherein the arc-shaped opening of the trench body faces a seismic isolation protection target.
6. The arc-shaped and variable-depth seismic isolation trench as claimed in claim 1, wherein a plurality of top inner supports and middle inner supports are arranged at intervals along the arc length direction of the trench body at the top and the middle of the underground continuous wall, and both ends of each of the top inner supports and the middle inner supports are respectively connected to the underground continuous wall.
7. The arc-shaped and variable-depth shock insulation trench as claimed in claim 1, wherein a drain pipe is arranged in the trench body, the bottom end of the drain pipe penetrates into the soil body at the bottom of the trench body, and the top of the drain pipe extends out of the ground.
8. The arc-shaped and variable-depth seismic isolation trench as claimed in claim 1, wherein the trench body is filled with fly ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920051997.1U CN209837120U (en) | 2019-01-14 | 2019-01-14 | Arc-shaped and variable-depth shock insulation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920051997.1U CN209837120U (en) | 2019-01-14 | 2019-01-14 | Arc-shaped and variable-depth shock insulation ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209837120U true CN209837120U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920051997.1U Expired - Fee Related CN209837120U (en) | 2019-01-14 | 2019-01-14 | Arc-shaped and variable-depth shock insulation ditch |
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| Country | Link |
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| CN (1) | CN209837120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379279A (en) * | 2020-04-29 | 2020-07-07 | 沈阳促晋科技有限公司 | Variable-depth modular anti-seepage vibration isolation ditch and construction method thereof |
| CN114293582A (en) * | 2022-02-24 | 2022-04-08 | 中水北方勘测设计研究有限责任公司 | Damping structure of concrete gravity dam in multiple earthquake areas |
-
2019
- 2019-01-14 CN CN201920051997.1U patent/CN209837120U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379279A (en) * | 2020-04-29 | 2020-07-07 | 沈阳促晋科技有限公司 | Variable-depth modular anti-seepage vibration isolation ditch and construction method thereof |
| CN114293582A (en) * | 2022-02-24 | 2022-04-08 | 中水北方勘测设计研究有限责任公司 | Damping structure of concrete gravity dam in multiple earthquake areas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |