Treatment structure and treatment method for inclination deformation of building

Abstract

The invention relates to a building inclination deformation treatment structure and method, the treatment structure comprises a plurality of drill holes, a plurality of peripheral heaped loads and a plurality of internal heaped loads, the drill holes are formed in a foundation of a building, the hole openings of the drill holes are located in the outer side of the foundation, and the drill holes are drilled in the bottom direction of the building by a preset length; the multiple drill holes are formed in the circumferential direction of the building at intervals. Along settlement distribution of the building, the building is provided with a plurality of units on a horizontal projection plane, the units comprise at least one deviation rectifying reference unit, at least one deviation rectifying unit and at least two transition units, the deviation rectifying reference unit is the side, with the largest settlement depth, of the building, and the deviation rectifying unit is the side, away from the deviation rectifying reference unit, of the building. The transition unit is located between the deviation rectifying reference unit and the deviation rectifying unit, and the peripheral stacking load is arranged in the outer side area of the deviation rectifying unit and the transition unit and is close to the deviation rectifying unit and the transition unit; and the internal heaping load is an auxiliary heaping load and is arranged in the building. The treatment structure can effectively treat inclination deformation of the ancient building caused by differential settlement of the foundation.

Description

Technical Field

[0001] The present application relates to the technical field of ancient building restoration engineering, and in particular to a structure and method for managing the tilt and deformation of a building. Background Art

[0002] Among the numerous ancient buildings in my country, cultural relics protection and restoration is an important task. There are some problems of tilting due to uneven foundation settlement, such as the Tiger Hill Leaning Pagoda in Suzhou. If it is allowed to develop for a long time, it will not only affect safety, but even collapse, causing irreparable damage to cultural relics. For modern reinforced concrete buildings, due to their strong bearing capacity and structural integrity, there are currently many correction methods, such as using jacks to lift the bottom of the foundation. However, my country's ancient buildings are mainly wooden and stone structures, and their bearing capacity and overall shape are relatively low, so existing technologies cannot be used for correction. Summary of the invention

[0003] A first aspect of the present application provides a structure for managing the tilt and deformation of a building, through which the tilt and deformation of an ancient building caused by uneven foundation settlement can be effectively managed.

[0004] The first aspect of the present application provides a structure for managing the tilt and deformation of a building, comprising a plurality of drill holes and a plurality of peripheral loads, wherein the drill holes are arranged in the foundation of the building, the orifices of the drill holes are located on the outside of the foundation, and the drill holes are drilled with a preset length toward the bottom of the building, and the plurality of drill holes are arranged at intervals along the circumference of the building; along the settlement distribution of the building, the building has a plurality of units on a horizontal projection plane, the units comprising at least one correction reference unit, at least one correction unit and at least two transition units, the correction reference unit being the side of the building with the largest settlement depth, the correction unit being the side of the building away from the correction reference unit, the transition unit being located between the correction reference unit and the correction unit, the peripheral loads being arranged in the outer areas of the correction unit and the transition unit, and the peripheral loads being close to the correction unit and the transition unit.

[0005] In addition, the structure for managing building tilt deformation provided by the present application may also have the following additional technical features:

[0006] In an optional solution, the diameter of the drill hole and the density of the drill holes between the multiple drill holes are proportional to the settlement amplitude of the foundation. The deviation correction amount of a unit is defined as Δ, the length of the unit is L, the diameter of the drill hole in the corresponding unit is D, and the number of the drill holes is N. Then D and N satisfy: D 2 ·N=(4Δ·L / π)·(2~4).

[0007] In an optional solution, the spacing between two adjacent bore holes is 0.5 to 1 m; the bore holes gradually slope downward from the outside to the inside of the building, or a groove is provided around the building, and the bore holes extend horizontally from the groove to the bottom of the building.

[0008] In an optional scheme, the management structure also includes internal loads, and the peripheral loads are arranged along the periphery of the building, and the weight of the peripheral loads is proportional to the settlement amplitude of the corresponding unit; the internal loads are arranged inside the building, and the internal loads are located in the area formed by the correction unit and the transition unit.

[0009] In an optional solution, the treatment structure further includes a grouting layer, which is poured into the borehole after the deviation correction unit and the transition unit are parallel to the deviation correction reference unit, and the grouting layer can seal the borehole by its own weight.

[0010] The second aspect of the present application provides a method for treating the tilt deformation of a building, comprising the following steps:

[0011] 1) Divide the building into multiple units according to the settlement depth, and calculate the drilling density and borehole diameter of each unit;

[0012] 2) Carry out the first stage of drilling construction for each unit according to the calculation results. After the drilling construction is completed, load each unit and conduct settlement monitoring;

[0013] 3) When the actual settlement of one unit reaches 50% of the planned settlement, the drilling arrangement is adjusted according to the settlement statistics, the second phase of drilling construction is carried out for the units with increased drilling, and settlement monitoring is continuously carried out;

[0014] 4) During the settlement monitoring process, additional drilling or hole sweeping and plugging shall be performed according to the development of settlement;

[0015] 5) After the building as a whole reaches the set settlement, the unsealed holes are re-drilled and grouted at the original hole positions, the deviation correction work is completed, and the backlog is removed.

[0016] In an optional solution, in step 1), dividing the building into a plurality of units comprises the following steps:

[0017] Taking the outer boundary of the building foundation as a reference, the foundation is evenly divided into at least one correction reference unit, at least one correction unit and at least two transition units according to the size of the foundation range and the settlement distribution. The correction reference unit is the side position of the building with the largest settlement depth, the correction unit is the side position of the building farthest from the correction reference unit, and the transition unit is located between the correction reference unit and the correction unit.

[0018] In an optional solution, in step 2), the loading includes peripheral loading and internal loading, the peripheral loading is arranged along the periphery of the building, and the weight of the peripheral loading is proportional to the settlement amplitude of the corresponding unit;

[0019] The internal loading is carried out according to the bearing capacity of the building itself. When carrying out the internal loading, the auxiliary structures of the building can be dismantled to provide loading space.

[0020] In an optional solution, in step 1), the drilling density and the drilling hole diameter satisfy: 2 N = (4Δ L / π) (2 to 4);

[0021] In the formula, Δ is the settlement amount of the unit that needs to be corrected, L is the length of the unit, D is the diameter of the borehole, N is the number of holes drilled, and 2 to 4 are deviation coefficients. The value is related to the difference in mechanical properties of the soil in each unit within the correction range. The bearing capacity of the soil in the unit is large, and a high value is taken, otherwise a low value is taken;

[0022] When determining the number of holes N to be drilled, the spacing between the holes is determined according to the construction conditions on site, and the spacing between the holes is controlled between 0.5 and 1 m;

[0023] When determining the borehole diameter D, the theoretical borehole diameter is calculated based on the number of unit holes and the control value; then the drilling machine is selected based on the theoretical borehole diameter, and the number and spacing of holes are corrected based on the actual drilling diameter of the machine, and finally the borehole diameter D and the number of unit holes N are determined.

[0024] In an optional solution, the step 4) specifically includes the following steps:

[0025] When the settlement of a unit is close to the designed settlement value, drill holes at the original hole position, grout and seal, and remove the heap load at that location;

[0026] When the settlement of a unit is significantly slower than that of other units, further drilling is added in the unit.

[0027] The beneficial effects of this application are:

[0028] The governance structure and governance method of the building tilt deformation in the present application digs the soil in the area with low settlement through drilling holes to increase the deformation capacity of the foundation in the area, and at the same time uses the pile load to increase the surrounding load and increase the settlement, thereby achieving the effect of correction. The correction settlement is controlled by the density of the drilling arrangement and the height of the pile load. The distribution of the correction settlement is relatively continuous, and the destructive effect on the structure is small. It can effectively govern the tilt deformation caused by uneven settlement of the foundation of the ancient building, and can be better applied to the correction of the foundation of the ancient building formed by the strip (block) stone masonry.

[0029] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of an inclined building (taking a pavilion as an example) provided for this application;

[0031] Figure 2 A schematic diagram of the layout of the unit division provided for this application;

[0032] Figure 3 A schematic diagram of the arrangement of the drilling holes provided in this application in one embodiment;

[0033] Figure 4 A schematic diagram of the plan layout of the drilling holes provided for this application;

[0034] Figure 5 Schematic diagram of the stacking arrangement provided for this application;

[0035] Figure 6 Schematic diagram of the loading plan layout provided for this application.

[0036] Figure numerals: building 1, foundation 11, ground 12, borehole 2, peripheral load 3, deviation correction reference unit 4, deviation correction unit 5, transition unit 6, internal load 7, auxiliary structure 8.

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0038] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0039] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other technical solutions obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0040] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0041] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0043] like Figure 1-6 As shown, the first aspect of an embodiment of the present application provides a structure for managing the tilt and deformation of a building, the structure for managing the tilt and deformation of a building comprising a plurality of boreholes 2 and a plurality of peripheral loads 3, the boreholes 2 being arranged in a foundation 12 of the building 1, the orifices of the boreholes 2 being located outside the foundation 12, and the boreholes 2 being drilled with a preset length toward the bottom of the building 1, and the plurality of boreholes 2 being arranged at intervals along the circumference of the building 1; along the settlement distribution of the building 1, the building 1 has a plurality of units on a horizontal projection plane, the units comprising at least one correction reference unit 4, at least one correction unit 5 and at least two transition units 6, the correction reference unit 4 being the side of the building 1 with the largest settlement depth, the correction unit 5 being the side of the building 1 away from the correction reference unit 4, the transition unit 6 being located between the correction reference unit 4 and the correction unit 5, the peripheral load 3 being arranged in the outer area of ​​the correction unit 5 and the transition unit 6, and the peripheral load 3 being close to the correction unit 5 and the transition unit 6.

[0044] like Figure 1-2 As shown, in this embodiment, a pavilion is taken as an example and is divided into six units, including two correction reference units 4, two correction units 5 and two transition units 6. However, in some buildings 1 with other structures, the correction reference unit 4, the correction unit 5 and the transition unit 6 can be preset according to the structure, area, settlement amplitude, etc. of the building 1, so this article does not make specific limitations. In this embodiment, part of the soil in the foundation 12 is taken out by arranging a borehole 2 to increase the deformation capacity of the soil of the foundation 12, and at the same time, the upper load of the foundation 11 is increased by the peripheral loading 3. Under the action of the above two measures, the settlement value on the side with relatively smaller settlement is increased, thereby achieving the effect of correction.

[0045] like Figure 3-4As shown, in a specific embodiment, the diameter of the borehole 2 and the density of the boreholes 2 are proportional to the settlement amplitude of the foundation 11. In layman's terms, the boreholes 2 are set according to the amplitude of the uneven settlement. The larger the uneven settlement, the larger the drilling density and the larger the diameter. Specifically, if the deviation correction amount of a unit is defined as Δ, the length of the unit is L, the diameter of the borehole 2 in the corresponding unit is D, and the number of boreholes 2 is N, then D and N satisfy:

[0046] D 2 ·N=(4Δ·L / π)·(2~4).

[0047] like Figure 2-5 As shown, in a specific embodiment, the spacing between two adjacent bore holes 2 is 0.5 to 1 m; the bore holes 2 are gradually inclined downward from the outside to the inside of the building 1, or a groove is provided around the building 1, and a working surface for the lateral construction of the bore holes 2 is formed by excavating the groove, and the bore holes 2 extend horizontally from the groove to the bottom of the building 1.

[0048] like Figure 5-6 As shown, in a specific embodiment, the governance structure further includes an internal pile load 7, which is arranged in the building 1, and the internal pile load 7 is located in the area enclosed by the deviation correction unit 5 and the transition unit 6. In addition, the governance structure further includes a grouting layer, which is poured into the borehole 2 after the deviation correction unit 5 and the transition unit 6 are parallel to the deviation correction reference unit 4, and the grouting layer can block the borehole 2 by its own weight.

[0049] Specifically, after the drilling 2 is completed, the stacking arrangement can be carried out. According to the location of the stacking, it is divided into peripheral stacking 3 and internal stacking 7, wherein the peripheral stacking 3 is the main stacking and the internal stacking 7 is the auxiliary stacking. The stacking carrier is backfill, sandbags, etc. The external stacking is arranged along the periphery of the building 1, and a plurality of partitioned stackings are set according to the correction amplitude of each unit. The peripheral stacking 3 is as close as possible to the foundation 11 of the building 1, and the internal stacking 7 is carried out according to local conditions by utilizing the bearing capacity of the building 1 itself. If necessary, some auxiliary structures 8 of the building 1 are demolished to provide stacking space.

[0050] like Figure 1-6 As shown, the second aspect of the embodiment of the present application provides a method for treating the tilt deformation of a building, which mainly includes the following steps:

[0051] 1) Divide the building 1 into multiple units according to the settlement depth, and calculate the drilling density of each unit and the aperture of the drilling hole 2;

[0052] Specifically, in step 1), dividing the building 1 into a plurality of units includes the following steps:

[0053] Taking the outer boundary of the foundation 11 of the building 1 as the reference, according to the size of the foundation 11 and the settlement distribution, the foundation 11 is evenly divided into at least 4 units, namely, one correction reference unit 4, at least one correction unit 5 and at least two transition units 6. The correction reference unit 4 is the side position of the building 1 with the largest settlement depth, the correction unit 5 is the side position of the building 1 away from the correction reference unit 4, and the transition unit 6 is located between the correction reference unit 4 and the correction unit 5. Then, according to the distribution of the uneven settlement of the building 1, the settlement amount that needs to be corrected for each unit is calculated, wherein the drilling density and the aperture of the drilling hole 2 satisfy: D 2 N = (4Δ L / π) (2 to 4);

[0054] In the formula, Δ is the settlement amount of the unit that needs to be corrected, L is the length of the unit, D is the diameter of borehole 2, N is the number of holes in borehole 2, and 2 to 4 are deviation coefficients. The values ​​are related to the difference in mechanical properties of the soil in each unit within the correction range. The bearing capacity of the soil in the unit is large, and a high value is taken, otherwise a low value is taken;

[0055] When determining the number N of boreholes 2, the hole spacing of boreholes 2 is determined according to the construction conditions on site, and the spacing of boreholes 2 is controlled between 0.5 and 1 m;

[0056] When determining the aperture D of borehole 2, the theoretical aperture is calculated based on the number of unit holes and the control value; then the drilling machine is selected based on the theoretical aperture, and the number and spacing of holes are corrected based on the actual drilling diameter of the machine, and finally the aperture D of the borehole and the number N of each unit hole are determined.

[0057] 2) Carry out the first stage of drilling construction for each unit according to the calculation results, and after the drilling construction is completed, load each unit and monitor the settlement; specifically, the loading includes peripheral loading 3 and internal loading 7, and the peripheral loading 3 is arranged along the periphery of the building 1, and the weight of the peripheral loading 3 is proportional to the settlement amplitude of the corresponding unit; the internal loading 7 is carried out according to the bearing capacity of the building 1 itself, and when the internal loading 7 is carried out, the auxiliary structure 8 of the building 1 can be dismantled to provide loading space.

[0058] 3) When the actual settlement of one of the units reaches 50% of the predetermined settlement, the arrangement of borehole 2 is adjusted according to the settlement statistics, the second phase of drilling construction is carried out for the units with increased drilling, and settlement monitoring is continuously carried out. Specifically, the second phase of drilling construction is arranged according to the settlement development of each unit: the units are sorted according to their relative settlement values ​​(the ratio of actual settlement to predetermined settlement), and the midpoint is taken as the standard, and the relatively large settlement part is adjusted to 30% to 50% of the original design of the second phase of drilling. The relatively small settlement part, that is, the part with a lower settlement development rate is supplemented by an incremental amount on the basis of the calculated supplement amount, and the part with a higher settlement development rate is supplemented by a reduced amount on the basis of the calculated supplement amount, and the increase or decrease is 30% to 50% of the second phase of drilling.

[0059] 4) During the settlement monitoring process, additional drilling or hole sweeping and sealing is carried out according to the development of settlement. Specifically, when the settlement of a unit is close to the designed predetermined settlement value, drilling is carried out at the original hole position, grouting is carried out to seal the hole, and the load at that location is removed. When the settlement of a unit is significantly slower than that of other units, further drilling is carried out in that unit.

[0060] 5) After the building 1 as a whole reaches the set settlement, the unsealed boreholes are re-drilled and grouted at the original hole positions, the deviation correction work is completed, and the backlog is removed.

[0061] The structure and method for controlling the tilt deformation of buildings in the present application dig the soil in the area with low settlement through drilling holes to increase the deformation capacity of the foundation 11 in the area, and at the same time use the pile load to increase the surrounding load and increase the settlement, so as to achieve the effect of correction. The correction settlement is controlled by the arrangement density of the drilling holes 2 and the height of the pile load. The distribution of the correction settlement is relatively continuous, and the destructive effect on the structure is small. The tilt deformation caused by uneven settlement of the foundation of the ancient building can be effectively controlled, and it can be better applied to the correction of the foundation of the ancient building formed by the strip (block) stone masonry.

[0062] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A structure for managing building tilt deformation, used to manage the tilt of a building caused by uneven foundation settlement, characterized in that: It includes multiple drill holes and multiple peripheral loads, the drill holes are arranged in the foundation of the building, the openings of the drill holes are located on the outside of the foundation, and the drill holes are drilled with a preset length toward the bottom of the building, and the multiple drill holes are arranged at intervals along the circumference of the building; along the settlement distribution of the building, the building has multiple units on the horizontal projection plane, the units include at least one correction reference unit, at least one correction unit and at least two transition units, the correction reference unit is the side of the building with the largest settlement depth, the correction unit is the side of the building away from the correction reference unit, the transition unit is located between the correction reference unit and the correction unit, the peripheral load is arranged in the outer area of ​​the correction unit and the transition unit, and the peripheral load is close to the correction unit and the transition unit.

2. The structure for managing building tilt deformation according to claim 1, characterized in that: The diameter of the drill hole and the density of the drill holes between the multiple drill holes are proportional to the settlement amplitude of the foundation. The deviation correction amount of a unit is defined as Δ, the length of the unit is L, the diameter of the drill hole in the corresponding unit is D, and the number of the drill holes is N. Then D and N satisfy: D 2 ·N=(4Δ·L / π)·(2~4).

3. The structure for managing building tilt deformation according to claim 2, characterized in that: The spacing between two adjacent boreholes is 0.5 to 1 m; the boreholes gradually slope downward from the outside to the inside of the building, or a groove is provided around the building, and the boreholes extend horizontally from the groove to the bottom of the building.

4. The structure for treating the tilt and deformation of a building according to any one of claims 1 to 3, characterized in that: It also includes internal loading, wherein the external loading is arranged along the periphery of the building, and the weight of the external loading is proportional to the settlement amplitude of the corresponding unit; the internal loading is arranged inside the building, and the internal loading is located in the area formed by the correction unit and the transition unit.

5. The structure for managing building tilt deformation according to claim 4, characterized in that: It also includes a grouting layer, which is poured into the borehole after the deviation correction unit and the transition unit are parallel to the deviation correction reference unit, and the grouting layer can seal the borehole by its own weight.

6. A method for treating the tilt and deformation of a building, characterized in that: The following steps are involved: 1) Divide the building into multiple units according to the settlement depth, and calculate the drilling density and borehole diameter of each unit; 2) Carry out the first stage of drilling construction for each unit according to the calculation results. After the drilling construction is completed, load each unit and conduct settlement monitoring; 3) When the actual settlement of one unit reaches 50% of the planned settlement, the drilling arrangement is adjusted according to the settlement statistics, the second phase of drilling construction is carried out for the units with increased drilling, and settlement monitoring is continuously carried out; 4) During the settlement monitoring process, additional drilling or hole sweeping and plugging shall be performed according to the development of settlement; 5) After the building as a whole reaches the set settlement, the unsealed holes are re-drilled and grouted at the original hole positions, the deviation correction work is completed, and the backlog is removed.

7. The method for treating the tilt and deformation of a building according to claim 6, characterized in that: In the step 1), dividing the building into a plurality of units comprises the following steps: Taking the outer boundary of the building foundation as a reference, the foundation is evenly divided into at least one correction reference unit, at least one correction unit and at least two transition units according to the size of the foundation range and the settlement distribution. The correction reference unit is the side position of the building with the largest settlement depth, the correction unit is the side position of the building farthest from the correction reference unit, and the transition unit is located between the correction reference unit and the correction unit.

8. The method for treating the tilt and deformation of a building according to claim 7, characterized in that: In the step 2), the loading includes peripheral loading and internal loading, the peripheral loading is arranged along the periphery of the building, and the weight of the peripheral loading is proportional to the settlement amplitude of the corresponding unit; The internal loading is carried out according to the bearing capacity of the building itself. When carrying out the internal loading, the auxiliary structures of the building can be dismantled to provide loading space.

9. The method for treating the tilt deformation of a building according to any one of claims 6 to 8, characterized in that: In step 1), the drilling density and the drilling hole diameter satisfy: D 2 N = (4Δ L / π) (2 to 4); In the formula, Δ is the settlement amount of the unit that needs to be corrected, L is the length of the unit, D is the diameter of the borehole, N is the number of holes drilled, and 2 to 4 are deviation coefficients. The value is related to the difference in mechanical properties of the soil in each unit within the correction range. The bearing capacity of the soil in the unit is large, and a high value is taken, otherwise a low value is taken; When determining the number of holes N to be drilled, the spacing between the holes is determined according to the construction conditions on site, and the spacing between the holes is controlled between 0.5 and 1 m; When determining the borehole diameter D, the theoretical borehole diameter is calculated based on the number of unit holes and the control value; then the drilling machine is selected based on the theoretical borehole diameter, and the number and spacing of holes are corrected based on the actual drilling diameter of the machine, and finally the borehole diameter D and the number of unit holes N are determined.

10. The method for treating the tilt and deformation of a building according to claim 9, characterized in that: The step 4) specifically comprises the following steps: When the settlement of a unit is close to the designed settlement value, drill holes at the original hole position, grout and seal, and remove the heap load at that location; When the settlement of a unit is significantly slower than that of other units, further drilling is added in the unit.

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