JGJT438-2018······1

1 總則······11

2 術(shù)語和符號(hào)······12

2.1 術(shù)語······12

2.2 符號(hào)······13

3 基本規(guī)定······15

4 專項(xiàng)勘察······17

4.1 一般規(guī)定······17

4.2 專項(xiàng)室內(nèi)試驗(yàn)······17

4.3 原位熱響應(yīng)測(cè)試······17

5 能源樁傳熱性能測(cè)試······19

5.1 一般規(guī)定······19

5.2 單樁熱響應(yīng)測(cè)試······19

5.3 單樁換熱功率測(cè)試······20

5.4 熱負(fù)荷-結(jié)構(gòu)荷載耦合試驗(yàn)······21

6 能源樁構(gòu)造和材料······22

6.1 一般規(guī)定······22

6.2 能源樁換熱器構(gòu)造······22

6.3 能源樁管材與循環(huán)工質(zhì)······25

7 樁基地?zé)崮芾孟到y(tǒng)設(shè)計(jì)計(jì)算······27

7.1 一般規(guī)定······27

7.2 系統(tǒng)設(shè)計(jì)計(jì)算······27

8 能源樁結(jié)構(gòu)設(shè)計(jì)計(jì)算······30

8.1 一般規(guī)定······30

8.2 溫度作用效應(yīng)······30

8.3 單樁豎向承載力······31

9 能源樁施工與檢測(cè)······33

9.1 一般規(guī)定······33

9.2 換熱管賂的安裝與保護(hù)······33

9.3 換熱管路的壓力測(cè)試及沖洗······35

10 施工質(zhì)量驗(yàn)收······37

10.1 一般規(guī)定······37

10.2 施工前檢驗(yàn)······37

10.3 施工中檢驗(yàn)······37

10.4 施工后檢驗(yàn)······38

10.5 工程驗(yàn)收······38

11.1 一般規(guī)定······40

11.2 運(yùn)行監(jiān)測(cè)······40

11.3 系統(tǒng)維護(hù)······41

附錄A 巖土體熱物性參數(shù)參考值······42

附錄B 能源樁熱響應(yīng)測(cè)試要求······45

附錄C 能源樁熱負(fù)荷-結(jié)構(gòu)荷載耦合試驗(yàn)要求······46

本標(biāo)準(zhǔn)用同說明······48

引用標(biāo)準(zhǔn)名錄······49

附:條文說明······50

1 總則······54

3 基本規(guī)定······56

4 專項(xiàng)勘察······59

4.1 一般規(guī)定······59

4.2 專項(xiàng)室內(nèi)試驗(yàn)······60

4.3 原位熱響應(yīng)測(cè)試······62

5 能源樁傳熱性能測(cè)試······63

5.1 一般規(guī)定······63

5.2 單樁熱響應(yīng)測(cè)試······63

5.3 單樁換熱功率測(cè)試······65

5.4 熱負(fù)荷-結(jié)構(gòu)荷載耦合試驗(yàn)······65

6 能源樁構(gòu)造和材料······66

6.1 一般規(guī)定······66

6.2 能源樁換熱器構(gòu)造······67

6.3 能源樁管材與循環(huán)工質(zhì)······68

7 樁基地?zé)崮芾孟到y(tǒng)設(shè)計(jì)計(jì)算······70

7.1 一般規(guī)定······70

7.2 系統(tǒng)設(shè)計(jì)計(jì)算······71

8 能源樁結(jié)構(gòu)設(shè)計(jì)計(jì)算······74

8.1 一般規(guī)定······74

8.2 溫度作用效應(yīng)······75

8.3 單樁豎向承載力······76

9 能源樁施工與檢測(cè)······81

9.1 一般規(guī)定······81

9.2 換熱管路的安裝與保護(hù)······81

9.3 換熱管路的壓力測(cè)試及沖洗······82

10 施工質(zhì)量驗(yàn)收······84

10.1 一般規(guī)定······84

10.2 施工前檢驗(yàn)······84

10.3 施工中檢驗(yàn)······84

10.4 施工后檢驗(yàn)······85

10.5 工程驗(yàn)收······85

11 運(yùn)行與維護(hù)······86

11.1 一般規(guī)定······86

11.2 運(yùn)行監(jiān)測(cè)······86

11.3 系統(tǒng)維護(hù)······88

附錄A 巖土體熱物性參數(shù)參考值······90