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A platform for research: civil engineering, architecture and urbanism
Pile foundation mechanical property detection method
The invention relates to a pile foundation mechanical property detection method. The pile foundation mechanical property detection method is characterized in that a pile foundation static load test and a pile foundation dynamic load test are carried out on a pile foundation to be tested; in the pile foundation static load test, the acting force of a counterforce device on a pile head is f1, and asettlement value of the pile foundation to be tested is H; in the pile foundation dynamic load test, the impact acting force of a drop hammer on the pile head is F which is equal to the sum of f1 andma, wherein m in the formula represents the weight of the pile foundation to be tested, a represents the acceleration generated by the pile foundation to be tested when the drop hammer impacts the pile head, the settlement value of the pile foundation to be tested is h, and delta is equal to H-h; the pile foundation static load test can be compared through the pile foundation dynamic load test, and when the impact acting force of the drop hammer on the pile head in the dynamic load test is F, the settlement value of the pile foundation to be tested is h, it is equivalently that the settlementvalue H of the pile foundation to be tested is equal to the sum of delta and h under the condition that the static load acting force f1 of the pile foundation to be tested is equal to F-ma. The invention provides the pile foundation mechanical property detection method capable of replacing the pile foundation static load test with the pile foundation dynamic load test.
本发明涉及一种桩基力学性能检测方法，其特征在于：对待试验桩基进行桩基静载试验和桩基动载试验，桩基静载试验中，反力装置对桩头的作用力为f1，待试验桩基的沉降值为H；桩基动载试验中，落锤对桩头的冲击作用力F，F=f1+ma，式中m表示待试验桩基的重量，a表示落锤冲击桩头时，待试验桩基产生的加速度，待试验桩基的沉降值为h，δ=H‑h，通过桩基动载试验可以比对桩基静载试验，当动载试验中落锤对桩头的冲击作用力为F时，待试验桩基的沉降值为h，相当于对待试验桩基的静载作用力f1=F‑ma下，待试验桩基的沉降值H=δ+h。本发明提供了一种能够使用桩基动载试验代替桩基静载试验的桩基力学性能检测方法。
Pile foundation mechanical property detection method
The invention relates to a pile foundation mechanical property detection method. The pile foundation mechanical property detection method is characterized in that a pile foundation static load test and a pile foundation dynamic load test are carried out on a pile foundation to be tested; in the pile foundation static load test, the acting force of a counterforce device on a pile head is f1, and asettlement value of the pile foundation to be tested is H; in the pile foundation dynamic load test, the impact acting force of a drop hammer on the pile head is F which is equal to the sum of f1 andma, wherein m in the formula represents the weight of the pile foundation to be tested, a represents the acceleration generated by the pile foundation to be tested when the drop hammer impacts the pile head, the settlement value of the pile foundation to be tested is h, and delta is equal to H-h; the pile foundation static load test can be compared through the pile foundation dynamic load test, and when the impact acting force of the drop hammer on the pile head in the dynamic load test is F, the settlement value of the pile foundation to be tested is h, it is equivalently that the settlementvalue H of the pile foundation to be tested is equal to the sum of delta and h under the condition that the static load acting force f1 of the pile foundation to be tested is equal to F-ma. The invention provides the pile foundation mechanical property detection method capable of replacing the pile foundation static load test with the pile foundation dynamic load test.
本发明涉及一种桩基力学性能检测方法，其特征在于：对待试验桩基进行桩基静载试验和桩基动载试验，桩基静载试验中，反力装置对桩头的作用力为f1，待试验桩基的沉降值为H；桩基动载试验中，落锤对桩头的冲击作用力F，F=f1+ma，式中m表示待试验桩基的重量，a表示落锤冲击桩头时，待试验桩基产生的加速度，待试验桩基的沉降值为h，δ=H‑h，通过桩基动载试验可以比对桩基静载试验，当动载试验中落锤对桩头的冲击作用力为F时，待试验桩基的沉降值为h，相当于对待试验桩基的静载作用力f1=F‑ma下，待试验桩基的沉降值H=δ+h。本发明提供了一种能够使用桩基动载试验代替桩基静载试验的桩基力学性能检测方法。
Pile foundation mechanical property detection method
一种桩基力学性能检测方法
MA HAOXIANG (author) / WU GENSHANG (author) / SHANG TINGDONG (author) / HUANG YONG (author) / JIA YANG (author)
2020-11-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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