GB50421-2018······1

1 總則······11

2 術(shù)語······12

3 基本規(guī)定······14

3.1 設(shè)計原則······14

3.2 設(shè)計內(nèi)容······14

3.3 排土場等級······15

3.4 排土場防洪······16

3.5 設(shè)計基礎(chǔ)資料······16

4 場址選擇······18

4.1 一般規(guī)定······18

4.2 外部排土場場址選擇······19

4.3 內(nèi)部排土場場址選擇······19

5 安全防護······20

6 排土工藝及堆置要素······22

6.1 排土工藝······22

6.2 堆置要素······23

6.3 排土計劃······24

7 穩(wěn)定性分析與評價······25

7.1 一般規(guī)定······25

7.2 計算方法······25

7.3 計算模型與參數(shù)······26

7.4 安全穩(wěn)定性標準······26

8 排土場病害防治······28

9 排土場復(fù)墾······30

10 環(huán)境保護······31

11 排土場關(guān)閉······32

附錄A 排土場分類······33

附錄B 排土工藝分類······35

本標準用詞說明······37

引用標準名錄······38

附: 條文說明······39

1 總則······42

3 基本規(guī)定······44

3.1 設(shè)計原則······44

3.2 設(shè)計內(nèi)容······44

3.3 排土場等級······46

3.4 排土場防洪······50

3.5 設(shè)計基礎(chǔ)資料······51

4 場址選擇······55

4.1 一般規(guī)定······55

4.2 外部排土場場址選擇······58

4.3 內(nèi)部排土場場址選擇······59

5 安全防護······61

6 排土工藝及堆置要素······72

6.1 排土工藝······72

6.2 堆置要素······79

6.3 排土計劃······86

7 穩(wěn)定性分析與評價······88

7.1 一般規(guī)定······88

7.2 計算方法······89

7.3 計算模型與參數(shù)······93

7.4 安全穩(wěn)定性標準······95

8 排土場病害防治······99

9 排土場復(fù)墾······106

10 環(huán)境保護······112

11 排土場關(guān)閉······120