Anti-slide pile design system and anti-slide pile design method for large-capacity waste dump in mountain valley

Abstract

The present invention provides a landslide - resistant pile design system and a landslide - resistant pile design method for a large - capacity waste - dumping site in a mountain gully with better practicability and higher accuracy, which relates to the technical field of waste - stacking. The design method for the hierarchical landslide - resistant piles of the large - capacity waste - dumping site in the mountain gully includes: designing the landslide - resistant piles for each level of waste body in the waste - dumping site; completing the waste - dumping site filling construction in the order of constructing the landslide - resistant piles for one level first and then filling the waste body of one level. When constructing the landslide - resistant piles for the second - level waste body, first measure the actual internal force value T1 of the landslide - resistant piles of the first - level waste body, then calculate the predicted internal force value F′2 of the landslide - resistant piles of the second - level waste body through the T1, and finally correct the design parameters of the landslide - resistant piles of the second - level waste body according to F′2. When constructing the landslide - resistant piles for the i - th level waste body, first measure the actual internal force values T i‑1 and T i‑2 of the landslide - resistant piles of the two upper - level waste bodies adjacent to this level of waste body, and use T i‑1 and T i‑2 to calculate the predicted internal force value F′ i of the landslide - resistant piles of the i - th level waste body, and finally correct the design parameters of the landslide - resistant piles of the i - th level waste body according to F′ i .

Description

Technical Field

[0001] The present invention relates to the technical field of waste slag stacking, and in particular to a design system and a design method for anti-slip piles for a super-large capacity waste slag field in a mountain ravine. Background Art

[0002] During the construction of infrastructure such as railways and highway tunnels in complex and dangerous mountainous areas, a large amount of waste slag is often generated. Natural and excellent waste slag sites in mountainous areas often do not exist, and waste slag is more often piled in slope trenches. Waste slag sites are generally characterized by extremely large pile heights and extremely large capacities, and often need to be filled in phases and zones according to the progress of the project construction. The topographical, geological, hydrological, meteorological, and ecological conditions of the waste slag accumulation bodies are extremely complex and special. In addition, the sources of the waste slag bodies are complex and the spatial heterogeneity of the waste slag parameters is extremely strong. Under the coupling of multiple factors such as complex hydrodynamic conditions and multiple earthquakes, the applicability and accuracy of the stability assessment model for large-scale waste slag bodies are poor, and the designers have always relied on experience to design. This may lead to the instability of the slag field during the filling process or the over-design of the anti-slip pile size, thereby increasing the project cost.

[0003] To reduce project costs while ensuring the stability of the waste dump, the invention patent with application number CN202210248055.9 adopts a dynamic design method that uses the displacement of the previous level's anti-slip pile as a benchmark when designing each level of anti-slip pile. When the displacement of the previous level's anti-slip pile exceeds the allowable range, the design parameters of the next level's anti-slip pile are increased, and vice versa. However, due to various factors such as geology and anti-slip pile installation, the displacement of the anti-slip pile measured by this method sometimes does not accurately reflect the state of the anti-slip pile. In practice, this method still suffers from poor applicability and relatively low accuracy, and there is room for further optimization in the dimensional design of the anti-slip piles. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a system and method for designing anti-slip piles for ultra-large capacity waste dumps in mountain valleys with better practicality and higher accuracy.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a method for designing anti-slip piles for a large-capacity waste dump in a mountain ravine, comprising the following steps:

[0006] Design anti-slip piles for each level of spoil in the spoil site;

[0007] The construction of the spoil field is completed in the following order: construct the first-level anti-slip piles, then fill the first-level spoil body. When constructing the anti-slip piles of the second-level spoil body, first measure the actual internal force value of the anti-slip piles of the first-level spoil body. , and then through the Calculate the predicted internal force of the anti-slip piles of the second-level spoil body , and finally according to Modify the design parameters of the anti-slip piles of the second-level spoil body. The design allowable internal force value of the anti-slide pile exceeds the second-level spoil body When the design parameters of the anti-slip piles of the second-level spoil body are increased, the design allowable internal force value of the anti-slip piles of the second-level spoil body is equal On the contrary, the design parameters of the anti-slip piles of the second-level spoil body are reduced so that the design allowable internal force value of the anti-slip piles of the second-level spoil body 102 is equal ;

[0008] When constructing the anti-slip piles of the i-th level of spoil, first measure the actual internal force values ​​of the anti-slip piles of the two upper levels of spoil adjacent to this level. and , and and Calculate the predicted internal force of the anti-slip pile of the i-th level of spoil , and finally according to Modify the design parameters of the anti-slip piles of the i-th level spoil body, when The design allowable internal force value of the anti-slide pile exceeds the i-th level of spoil body When the design parameters of the anti-slip piles of the i-th level spoil are increased, the design allowable internal force value of the anti-slip piles of the i-th level spoil body is equal On the contrary, reduce the design parameters of the anti-slip pile of the i-th level spoil body so that the design allowable internal force value of the anti-slip pile of the i-th level spoil body is equal , i is an integer, and 3.

[0009] Furthermore, the design parameters of the anti-slip piles include the cross-sectional dimensions of the anti-slip piles, the length of the anti-slip piles, and the spacing between the anti-slip piles.

[0010] Furthermore, the predicted internal force of the anti-slip pile (101) of the second-level waste body (102) is = ,in, It is the design allowable internal force value of the anti-slip pile of the first-level spoil body.

[0011] Furthermore, the predicted internal force value of the anti-slip pile of the i-th level spoil body is = ,in, is the actual internal force value of the anti-slip pile of the i-1th level spoil body, is the actual internal force value of the anti-slip pile of the i-2 level spoil body, is the design allowable internal force value of the anti-slip pile of the i-th level spoil body, is the design allowable internal force value of the anti-slip pile of the i-1th level spoil body, is the design allowable internal force value of the anti-slip pile of the i-2th level spoil body, i is an integer, and 3. is the correction factor, Take 0.5~1.5.

[0012] Furthermore, when modifying the design parameters of the anti-slip piles of the nth level of spoil, when the predicted value of the internal force of the anti-slip piles of this level meets the requirements, the deformation rate of the spoil body of the n-1th level during the filling process is considered. , the cumulative deformation value of the n-1th level waste body during the filling process , the shear deformation value of the foundation during the filling process of the n-1 level waste body and the displacement of the anti-slip piles of the n-1th level waste body during the filling process ,when 、 、 as well as When any value in is greater than the corresponding design value, the design parameter of the anti-slip pile of the n-th level spoil body is increased, otherwise the design parameter of the anti-slip pile of the n-th level spoil body is reduced, where n is an integer, and .

[0013] The present invention also provides a system for designing anti-slip piles for a ravine super-large capacity waste dump for the above-mentioned anti-slip pile design method, comprising a data acquisition module for measuring the actual internal force value of the anti-slip piles of each level of waste body;

[0014] The data analysis module is electrically connected to the data acquisition module and is used to first analyze the actual internal force value of the anti-slip pile of the first-level spoil body measured by the data acquisition module when constructing the anti-slip pile of the second-level spoil body. Calculate the predicted internal force of the anti-slip piles of the second-level spoil body , and finally according to Modify the design parameters of the anti-slip piles of the second-level spoil body. The design allowable internal force value of the anti-slide pile exceeds the second-level spoil body When the design parameters of the anti-slip piles of the second-level spoil body are increased, the design allowable internal force value of the anti-slip piles of the second-level spoil body is equal On the contrary, the design parameters of the anti-slip piles of the second-level spoil body are reduced so that the design allowable internal force value of the anti-slip piles of the second-level spoil body is equal When constructing the anti-slip piles of the i-th level of spoil, first measure the actual internal force values ​​of the anti-slip piles of the two upper levels of spoil adjacent to the level of spoil according to the data acquisition module. and Calculate the predicted internal force of the anti-slip pile of the i-th level of spoil , and finally according to Modify the design parameters of the anti-slip piles of the i-th level spoil body, when The design allowable internal force value of the anti-slide pile exceeds the i-th level of spoil body When the design parameters of the anti-slip piles of the i-th level spoil are increased, the design allowable internal force value of the anti-slip piles of the i-th level spoil body is equal On the contrary, reduce the design parameters of the anti-slip pile of the i-th level spoil body so that the design allowable internal force value of the anti-slip pile of the i-th level spoil body is equal , i is an integer, and 3; and

[0015] The display module is electrically connected to the data analysis module and is used to display the corrected design parameters of the anti-slip pile.

[0016] Furthermore, the data acquisition module includes a rebar meter or an earth pressure cell.

[0017] Furthermore, it also includes an alarm module, which is electrically connected to the data analysis module. The data analysis module compares the calculated internal force prediction value of the anti-slip pile of the n-th level of spoil body with the designed internal force value of the anti-slip pile of the n-th level of spoil body. When the alarm threshold is exceeded, an alarm signal is sent to the alarm module to make the alarm module alarm, wherein n is an integer, and .

[0018] The beneficial effects of the present invention are: the anti-slip pile design system and anti-slip pile design method for the mountain ravine super-large capacity waste dump of the present invention take into account the stability of the whole process of zoning and grading the waste dump of the super-large capacity waste dump, and before constructing the anti-slip piles of each level of waste body except the first level, the internal force prediction value of the anti-slip pile of the waste body of this level is first calculated based on the actual internal force value of the anti-slip pile of the waste body of the previous level or the previous two levels, and then the internal force prediction value of the anti-slip pile of the waste body of this level is compared with the design internal force value to determine whether its design parameters need to be adjusted, so as to realize the graded dynamic design of the anti-slip piles. In this way, under the premise of ensuring the stability of the multi-level waste dump, the residual sliding thrust of the mountain ravine super-large capacity waste dump can be deformed and stabilized under the anti-slip action of the multi-level anti-slip piles. Practice has shown that compared with the existing method of adjusting based on the displacement of the anti-slip pile of the previous level, the present invention has better practicality and higher accuracy, and can further reduce the project cost while ensuring the stability of the waste dump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figures 1 to 3 are diagrams showing the status of the anti-slip piles at each level after construction in the three-level spoil dump;

[0020] Figure 4 This is a schematic diagram of the anti-slide pile design system for a large-capacity waste dump in a mountain ravine.

[0021] As shown in the figure: anti-slip piles 101, waste slag body 102, potential most unfavorable sliding surface 104, gravity retaining wall 105, data acquisition module 2, data analysis module 3, display module 4. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] like Figures 1 to 3 As shown, the anti-slip pile design method for a large-capacity waste dump in a mountain ravine of the present invention includes the following steps:

[0024] Step 1: Design anti-slip piles 101 for each level of waste slag body 102 in the waste slag field;

[0025] Step 2: The waste dump filling construction is completed by constructing the first-level anti-slip piles 101 and then filling the first-level waste dump body 102 in order.

[0026] Among them, in step 2, when constructing the anti-slip pile 101 of the second-level waste body 102, first measure the actual internal force value of the anti-slip pile 101 after the first-level waste body 102 is completed. , and then through the Calculate the predicted internal force value of the anti-slip pile 101 of the second-level waste body 102 , and finally according to Modify the design parameters of the anti-slip pile 101 of the second-level spoil body 102. The design allowable internal force value of the anti-slip pile 101 exceeds the second-level waste body 102 When the design parameters of the anti-slip pile 101 of the second-level spoil body 102 are increased, the design allowable internal force value of the anti-slip pile 101 of the second-level spoil body 102 is equal Otherwise, the design parameters of the anti-slip piles 101 of the second-level spoil body 102 are reduced so that the design allowable internal force value of the anti-slip piles 101 of the second-level spoil body 102 is equal When constructing the anti-slip pile 101 of the i-th level spoil body 102, first measure the actual internal force value of the anti-slip pile 101 of the two levels of spoil body 102 adjacent to the level spoil body 102 and , and and Calculate the predicted value of the internal force of the anti-slip pile 101 of the i-th level waste body 102 , and finally according to Modify the design parameters of the anti-slip pile 101 of the i-th level waste body 102, when The design allowable internal force value of the anti-slip pile 101 exceeding the i-th level waste body 102 When the design parameters of the anti-slip pile 101 of the i-th level spoil body 102 are increased, the design allowable internal force value of the anti-slip pile 101 of the i-th level spoil body 102 is equal Otherwise, the design parameters of the anti-slip pile 101 of the i-th level spoil body 102 are reduced so that the design allowable internal force value of the anti-slip pile 101 of the i-th level spoil body 102 is equal , where i is an integer, and 3.

[0027] The design allowable internal force value of the anti-slip pile 101 of each level of spoil body 102 is determined based on the parameters of the anti-slip pile 101. Once the design parameters of the anti-slip pile 101 are determined, the allowable internal force value range of each section of the pile body can be calculated based on the boundary conditions of the anti-slip pile 101.

[0028] Specifically, step two is as follows: first construct the anti-slip piles 101 of the first-level waste slag body 102, then fill the first-level waste slag body 102 until it is filled, then construct the anti-slip piles 101 of the second-level waste slag body 102, and then fill the second-level waste slag body 102 until it is filled, and so on, until the waste dump filling construction is completed.

[0029] During the construction process, when the design parameters of the anti-slip pile 101 are changed, when calculating the predicted internal force value of the next level anti-slip pile 101, the design allowable internal force value of the anti-slip pile 101 should be calculated based on the corresponding design allowable internal force value after the changed design parameters. For example, when the second level anti-slip pile 101 is filled after the first level waste slag body 10 is filled, its design participation is due to the predicted internal force value of the anti-slip pile 101 of the second level waste slag body 102. If the requirements are not met and changes occur, when calculating the predicted internal force values ​​of the third-level anti-slip piles 101, the design allowable internal force values ​​of the anti-slip piles 101 of the second-level waste body 102 should be based on the corresponding design allowable internal force values ​​after the design parameters are changed.

[0030] The design method of the anti-slip piles 101 of each level of the waste body 102 is an existing method, which specifically includes the following steps:

[0031] S1. Based on the overall design volume of the waste dump and the design volume of the waste body 102 of this level, and taking into account the graded waste working conditions, the potential most unfavorable sliding surface 104 of the waste body 102 of this level is determined by the limit equilibrium method and the strength reduction method; a stability analysis is performed on the potential most unfavorable sliding surface 104 to obtain the minimum safety factor of the waste body 102 of this level; specifically, when the potential most unfavorable sliding surface 104 is an arc sliding surface, the Swedish arc method or the simplified Bishop method is used for stability analysis; when the potential most unfavorable sliding surface 104 is a broken line sliding surface, the transfer coefficient method is used for stability analysis.

[0032] For stability analysis, three operating conditions need to be considered: normal operating conditions, earthquake operating conditions, and rainstorm operating conditions. Among them, normal operating conditions refer to the operating conditions under normal and sustained conditions. Earthquake operating conditions refer to the operating conditions under the action of earthquakes of magnitude VII or above. The horizontal seismic force should be calculated according to the following formula: ;in, For the The horizontal seismic force at the center of mass of the soil block, in kN; is the correction coefficient for horizontal earthquake action, with a value of 0.25; is the peak acceleration of the earthquake, in units of ; For the The mass of the soil block, in tons. Heavy rain conditions require consideration of the effect of water seepage within the spoil pile caused by continuous rainfall or snowmelt. For each of these conditions, the spoil pile stability safety factor must not be lower than the minimum anti-sliding stability safety factor for the spoil pile, as shown in Table 1.

[0033] Table 1 Minimum stability safety factor against sliding in waste dumps

[0034]

[0035] S2. Calculate the remaining sliding thrust using the transfer coefficient method based on the physical and mechanical parameters of the sliding zone soil at the most unfavorable sliding surface 104 of the waste body 102 at that level, and determine the location and range of the anti-sliding piles 101 at that level based on the terrain, geological engineering requirements, and construction conditions.

[0036] S3. Determine the spacing, cross-sectional shape and size, and anchoring depth of the anti-slip piles 101 based on the remaining sliding thrust, topography, geological conditions, and construction conditions;

[0037] S4. Calculate the internal forces and sidewall stresses in each section of the anti-slip pile based on the boundary conditions of the anti-slip pile 101, determining the maximum shear stress, bending moment, and their locations. Then, verify the foundation strength. If the elastic stress acting on the foundation stratum due to the pile exceeds or significantly decreases from the allowable value, adjust the design parameters of the anti-slip pile and recalculate until the design requirements are met. For reinforced concrete piles, perform the structural design based on these calculation results.

[0038] Wherein, each time a first-level waste dump 102 is filled, the most unfavorable potential sliding surface 104 within the entire filling range should be searched and a stability analysis should be conducted.

[0039] The anti-slip pile 101 should be installed in accordance with the requirements, see Figure 1 The tops of the anti-slip piles 101 are all higher than the potential most unfavorable sliding surface 104 , and the embedded sections of the anti-slip piles 101 are all in the deep bedrock and lower than the potential most unfavorable sliding surface 104 .

[0040] The specific method for measuring the actual internal force value of the anti-slip pile 101 adopts existing methods, such as: sliding side micrometer method, steel bar meter and pressure box method.

[0041] The anti-slip pile design method for a super-large capacity waste dump in a mountain ravine of the present invention takes into account the stability of the entire process of zoning and grading waste dump in the super-large capacity waste dump. Before constructing the anti-slip piles 101 of each level of waste body 102 except the first level, the internal force predicted value of the anti-slip piles 101 of the waste body 10 at this level is calculated based on the actual internal force value of the anti-slip piles 101 of the waste body 10 at the previous level or the previous two levels. Then, by comparing the internal force predicted value of the anti-slip piles 101 of the waste body 10 at this level with the designed internal force value, it is determined whether its design parameters need to be adjusted, thereby realizing hierarchical dynamic design of anti-slip piles. In this way, under the premise of ensuring the stability of the multi-level waste dump, the residual sliding thrust of the super-large capacity waste dump in the mountain ravine can be made to tend to be stable under the anti-slip action of the multi-level anti-slip piles. Practice has shown that compared with the existing method of using the displacement of the anti-slip piles of the previous level as a benchmark for adjustment, the present invention can ensure the stability of the waste dump and reduce the project cost by about 10%, with better practicality and higher accuracy.

[0042] The design parameters of the anti-slip pile 101 in the present invention include but are not limited to the cross-sectional dimensions of the anti-slip pile 101 and the length of the anti-slip pile 101 .

[0043] Specifically, the predicted internal force value of the anti-slip pile 101 of each level of the spoil body 102 except the first level can be simulated and calculated by existing software. The predicted internal force value of the anti-slip pile 101 of the second level of the spoil body 102 in the present invention is It can be simplified as follows: = ,in, is the design allowable internal force value of the anti-slip pile 101 of the first level of spoil body 102; the predicted internal force value of the anti-slip pile 101 of the i-th level of spoil body 102 It can be simplified as follows: = ,in, is the actual internal force value of the anti-slip pile 101 of the i-1th level waste body 102, is the actual internal force value of the anti-slip pile 101 of the i-2th level spoil body 102, is the design allowable internal force value of the anti-slip pile 101 of the i-th level waste body 102, is the design allowable internal force value of the anti-slip pile 101 of the i-1th level waste body 102, is the design allowable internal force value of the anti-slip pile 101 of the i-2th level waste body 102, i is an integer, and 3. is the correction factor, Take 0.5~1.5.

[0044] In the present invention, when modifying the design parameters of the anti-slip piles 101 of the n-th level spoil body 102, when the predicted internal force value of the anti-slip piles 101 of this level meets the requirements, that is, within the design allowable internal force value range, in order to further ensure the stability of the spoil field, the deformation rate of the spoil body of the n-1-th level spoil body 102 during the filling process can be considered. , the cumulative deformation value of the waste body 102 during the filling process of the n-1th level waste body , the shear deformation value of the foundation during the filling process of the n-1 level waste body 102 and the displacement of the anti-slip pile 101 during the filling process of the n-1th level waste body 102 ,when 、 、 as well as When any value in is greater than the corresponding design value, the design parameter of the anti-slip pile of the n-th level spoil body is increased, otherwise the design parameter of the anti-slip pile of the n-th level spoil body is reduced, where n is an integer and n QUOTE 2. When the predicted internal force value of the anti-slip pile 101 of the nth level is within the design allowable internal force value range, and the deformation rate of the waste slag body 102 of the n-1th level during the filling process is considered , the cumulative deformation value of the waste body 102 in the filling process of the n-1th level waste body , the shear deformation value of the foundation during the filling process of the n-1 level waste body 102 and the displacement of the anti-slip pile 101 during the filling process of the n-1th level waste body 102 In general, if any of the above parameters exceeds the corresponding design value of the n-1th level spoil body 102 during the filling process, the correction coefficient of the anti-slip pile of the nth level spoil body can be set according to the amount of the excess to make adjustments. The correction coefficient needs to be set based on the on-site conditions of the spoil site.

[0045] like Figure 4As shown, the present invention also provides a ravine super-large capacity spoil field anti-slip pile design system for the above-mentioned ravine super-large capacity spoil field anti-slip pile design method, including a data acquisition module 2, for measuring the actual internal force value of the anti-slip pile 101 of each level of spoil body 102; a data analysis module 3, which is electrically connected to the data acquisition module 2, when constructing the anti-slip pile 101 of the second level spoil body 102, first according to the actual internal force value of the anti-slip pile 101 of the first level spoil body 102 measured by the data acquisition module 2 Calculate the predicted internal force value of the anti-slip pile 101 of the second-level waste body 102 , and finally according to Modify the design parameters of the anti-slip pile 101 of the second-level spoil body 102. The design allowable internal force value of the anti-slip pile 101 exceeds the second-level waste body 102 When the design parameters of the anti-slip pile 101 of the second-level spoil body 102 are increased, the design allowable internal force value of the anti-slip pile 101 of the second-level spoil body 102 is equal On the contrary, the design parameters of the anti-slip piles 101 of the second-level spoil body 102 are reduced so that the design allowable internal force value of the anti-slip piles 101 of the second-level spoil body 102 is equal When constructing the anti-slip pile 101 of the i-th level spoil body 102, the actual internal force value of the anti-slip pile 101 of the two levels of spoil body 102 adjacent to the level spoil body 102 is measured by the data acquisition module 2. and Calculate the predicted value of the internal force of the anti-slip pile 101 of the i-th level waste body 102 , and finally according to Modify the design parameters of the anti-slip pile 101 of the i-th level waste body 102, when The design allowable internal force value of the anti-slip pile 101 exceeding the i-th level waste body 102 When the design parameters of the anti-slip pile 101 of the i-th level spoil body 102 are increased, the design allowable internal force value of the anti-slip pile 101 of the i-th level spoil body 102 is equal On the contrary, the design parameters of the anti-slip pile 101 of the i-th level spoil body 102 are reduced so that the design allowable internal force value of the anti-slip pile 101 of the i-th level spoil body 102 is equal , i is an integer, and 3; and a display module 3, electrically connected to the data analysis module 2, for displaying the corrected design parameters of the anti-slip pile 101.

[0046] The data acquisition module 2 includes but is not limited to a rebar meter, an earth pressure cell or (and) a sliding micrometer.

[0047] The anti-slip pile design system for a large-capacity waste dump in a mountain ravine of the present invention is further provided with an alarm module 5, which is electrically connected to the data analysis module 3. The data analysis module 3 compares the calculated internal force prediction value of the anti-slip pile 101 of the n-th level waste dump body 102 with the designed internal force value of the anti-slip pile 101 of the n-th level waste dump body 102. When the internal force exceeds the alarm threshold, an alarm signal is sent to the alarm module 5, where n is an integer and The alarm threshold can be set according to the actual situation. In this embodiment, when the predicted internal force value of the anti-slip pile 101 of the n-th level spoil body 102 reaches the designed internal force value of the anti-slip pile 101 of the n-th level spoil body 102, the alarm threshold can be set according to the actual situation. When an error occurs, an alarm is issued to alert the designer and verify the on-site situation.

Claims

1. The design method of anti-slide piles for large-capacity waste dump in mountain valley includes the following steps: Designing anti-slip piles (101) for each level of the waste dump (102); The construction of the waste dump is completed by constructing a first-level anti-slip pile (101) and then filling a first-level waste dump body (102) in sequence, wherein: When constructing the anti-slip piles (101) of the second-level waste slag body (102), first measure the actual internal force value of the anti-slip piles (101) of the first-level waste slag body (102). , and then through the Calculate the predicted internal force value of the anti-slip pile (101) of the second-level waste body (102) , finally according to Modify the design parameters of the anti-slip pile (101) of the second-level spoil body (102). The design allowable internal force value of the anti-sliding pile (101) exceeding the second-level spoil body (102) When the design parameters of the anti-sliding pile (101) of the second-level spoil body (102) are increased, the design allowable internal force value of the anti-sliding pile (101) of the second-level spoil body (102) is equal On the contrary, the design parameters of the anti-slip piles (101) of the second-level spoil body (102) are reduced so that the design allowable internal force value of the anti-slip piles (101) of the second-level spoil body (102) is equal ; When constructing the anti-slip piles (101) of the i-th level of spoil body (102), first measure the actual internal force values ​​of the anti-slip piles (101) of the upper two levels of spoil body (102) adjacent to the i-th level of spoil body (102). and , and and Calculate the predicted value of the internal force of the anti-slip pile (101) of the i-th level waste slag body (102) , finally according to Modify the design parameters of the anti-slip pile (101) of the i-th level spoil body (102), when The design allowable internal force value of the anti-sliding pile (101) exceeding the i-th level of spoil body (102) When , the design parameters of the anti-sliding pile (101) of the i-th level of spoil body (102) are increased, so that the design allowable internal force value of the anti-sliding pile (101) of the i-th level of spoil body (102) is equal On the contrary, the design parameters of the anti-sliding pile (101) of the i-th level of spoil body (102) are reduced so that the design allowable internal force value of the anti-sliding pile (101) of the i-th level of spoil body (102) is equal , i is an integer, and 3.

2. The anti-sliding pile design method for a large-capacity waste dump in a mountain valley as claimed in claim 1 is characterized in that: The design parameters of the anti-slip piles (101) include the cross-sectional dimensions of the anti-slip piles (101), the length of the anti-slip piles (101), and the spacing between the anti-slip piles (101).

3. The anti-sliding pile design method for a large-capacity waste dump in a mountain valley as claimed in claim 1 is characterized in that: Predicted internal force values ​​of the anti-slip piles (101) of the second-level spoil body (102) = ,in, is the design allowable internal force value of the anti-sliding pile (101) of the first-level waste slag body (102).

4. The anti-sliding pile design method for a large-capacity waste dump in a mountain valley as claimed in claim 1 is characterized in that: Predicted value of internal force of the anti-sliding pile (101) of the i-th level waste slag body (102) = ,in, is the actual internal force value of the anti-sliding pile (101) of the i-1th level waste slag body (102), is the actual internal force value of the anti-sliding pile (101) of the i-2-th level waste slag body (102), is the design allowable internal force value of the anti-sliding pile (101) of the i-th level waste slag body (102), is the design allowable internal force value of the anti-sliding pile (101) of the i-1th level waste slag body (102), is the design allowable internal force value of the anti-sliding pile (101) of the i-2nd level waste slag body (102), i is an integer, and 3. is the correction factor, Take 0.5~1.

5.

5. The anti-sliding pile design method for a large-capacity waste dump in a mountain valley as claimed in claim 1 is characterized in that: When modifying the design parameters of the anti-slip pile (101) of the nth level of spoil body (102), when the predicted value of the internal force of the anti-slip pile (101) of this level meets the requirements, the deformation rate of the spoil body of the n-1th level of spoil body (102) during the filling process is considered. , the cumulative deformation value of the waste body of the n-1th level (102) during the filling process , the shear deformation value of the foundation during the filling process of the n-1 level waste body (102) and the displacement of the anti-slip pile (101) of the n-1th level waste slag body (102) during the filling process ,when , , as well as When any value in is greater than the corresponding design value, the design parameter of the anti-sliding pile of the nth level of spoil is increased, otherwise the design parameter of the anti-sliding pile of the nth level of spoil is reduced, where n is an integer and n .

6. A system for designing anti-sliding piles for a ravine with a large capacity of waste dump, used in the method for designing anti-sliding piles for a ravine with a large capacity of waste dump as claimed in any one of claims 1 to 5, characterized in that: It comprises a data acquisition module (2) for measuring the actual internal force value of the anti-slip pile (101) of each level of the waste slag body (102); The data analysis module (3) is electrically connected to the data acquisition module (2) and is used to first analyze the actual internal force value of the anti-slip pile (101) of the first-level waste slag body (102) measured by the data acquisition module (2) when constructing the anti-slip pile (101) of the second-level waste slag body (102). Calculate the predicted internal force value of the anti-slip pile (101) of the second-level waste body (102) , finally according to Modify the design parameters of the anti-slip pile (101) of the second-level spoil body (102). The design allowable internal force value of the anti-sliding pile (101) exceeding the second-level spoil body (102) When the design parameters of the anti-sliding pile (101) of the second-level spoil body (102) are increased, the design allowable internal force value of the anti-sliding pile (101) of the second-level spoil body (102) is equal On the contrary, the design parameters of the anti-slip piles (101) of the second-level spoil body (102) are reduced so that the design allowable internal force value of the anti-slip piles (101) of the second-level spoil body (102) is equal When constructing the anti-slip pile (101) of the i-th level of spoil body (102), firstly, according to the actual internal force values ​​of the anti-slip piles (101) of the upper two levels of spoil body (102) adjacent to the level of spoil body (102) measured by the data acquisition module (2), and Calculate the predicted value of the internal force of the anti-slip pile (101) of the i-th level waste slag body (102) , finally according to Modify the design parameters of the anti-sliding pile (101) of the i-th level spoil body (102), when The design allowable internal force value of the anti-sliding pile (101) exceeding the i-th level of spoil body (102) When , the design parameters of the anti-sliding pile (101) of the i-th level of abandoned slag body (102) are increased so that the design allowable internal force value of the anti-sliding pile (101) of the i-th level of abandoned slag body (102) is equal On the contrary, the design parameters of the anti-sliding pile (101) of the i-th level of waste slag body (102) are reduced so that the design allowable internal force value of the anti-sliding pile (101) of the i-th level of waste slag body (102) is equal , i is an integer, and 3; as well as The display module (4) is electrically connected to the data analysis module (3) and is used to display the corrected design parameters of the anti-slip pile (101).

7. The anti-sliding pile design system for a large-capacity waste dump in a mountain valley as claimed in claim 6, characterized in that: The data acquisition module (2) includes a rebar meter or an earth pressure cell.

8. The anti-sliding pile design system for a large-capacity waste dump in a mountain valley as claimed in claim 6, characterized in that: It also includes an alarm module (5), the alarm module (5) being electrically connected to the data analysis module (3), the data analysis module (3) comparing the calculated predicted internal force value of the anti-slip pile (101) of the nth level of abandoned slag body (102) with the designed internal force value of the anti-slip pile (101) of the nth level of abandoned slag body (102), and sending an alarm signal to the alarm module (5) when the alarm threshold is exceeded, so that the alarm module (5) alarms, wherein n is an integer, and n is 2.

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